JP4464426B2 - Panel, panel mounting structure and cooling tower - Google Patents

Description

  The present invention relates to a panel, a panel fixture, a panel mounting structure, and a cooling tower equipped with the panel mounting structure, which are suitable for use in, for example, building an exterior wall of a cooling tower.

  As cooling towers for cooling hot water sent from air conditioning equipment such as factory equipment and buildings, for example, cross-flow type cooling towers in which the flow directions of hot water and cooling airflow are orthogonal are widely used in practical use.

Conventionally, as this type of cooling tower exterior wall structure, there is a structure in which a plurality of strip-shaped panels 100 extending vertically are continuously provided as shown in FIGS.
Further, as another exterior wall structure, as shown in FIGS. 10A and 10B, one in which a plurality of cross-sectional wave-shaped panels 150 are bonded is known (for example, see Patent Document 1).

In the cooling tower exterior wall structure shown in FIGS. 9 (a) and 9 (b), each panel 100 is supported by a required panel mounting frame 101 that is horizontally mounted between columns (not shown) constituting the framework of the cooling tower.
The panel mounting frame 101 is provided with a required locking bent member 104 having a tongue-shaped locking portion 103 that is parallel to the panel mounting surface 102.
Each panel 100 includes a panel body 105 facing the panel mounting surface 102 of the panel mounting frame 101, and a mounting base 106 is formed on the right side in the panel body 105, while the panel base 105 has a left side in the panel main body 105. Is formed with a locking protrusion 107 that engages with a locking recess provided in a separate panel 100 '.
The mounting base 106 is formed with a latching portion 108 that is latched by the latching portion 103 of the latching bending member 104 provided on the panel mounting frame 101, and a latching protrusion on a separate panel 100 ″. A locking recess 109 is formed to engage with the portion.
And in this cooling tower exterior wall structure, with the insertion of the latching | locking part 108 between the panel attachment surface 102 and the latching | locking part 103, the latching recessed part 109 and the latching protrusion 107 between adjacent panels, Each panel 100 is attached to the panel attachment frame 101 by the fitting.

  By the way, in the cooling tower exterior wall structure shown in FIGS. 9A and 9B, the difference between the gap dimension between the panel mounting surface 102 and the locking part 103 and the thickness dimension of the latching part 108 is too small. Since the panel mounting operation becomes difficult, a play is provided in which the latching portion 108 can move to some extent between the panel mounting surface 102 and the locking portion 103.

  For this reason, in the cooling tower exterior wall structure shown in FIGS. 9A and 9B, the panel 100 vibrates due to the vibration of equipment or the influence of wind, and the panel 100 touches or leaves the panel mounting frame 101. Therefore, there is a problem that abnormal noise (so-called “billing noise”) is generated.

On the other hand, in the cooling tower exterior wall structure shown in FIGS. 10 (a) and 10 (b), each panel 150 is supported by columns (not shown), beams and the like that constitute the framework of the cooling tower.
In each panel 150, a protrusion 151 is formed at one end, and a substantially U-shaped portion 152 having a recess that can be fitted to the protrusion of a separate panel 150 'is formed at the other end. Is formed.
And in this cooling tower exterior wall structure, the cooling tower exterior wall is constructed | assembled by fitting together the edge parts of each panel 150, and bonding together.

  By the way, in the cooling tower exterior wall structure shown in FIGS. 10A and 10B, a large number of hook bolts 153 are attached to the panel 150 as fixing means for fixing the panel 150 to columns, beams and the like constituting the framework of the cooling tower. Fixing means such as penetrating troughs and engaging with pillars, beams, etc. constituting the framework of the cooling tower is employed.

For this reason, in the cooling tower exterior wall structure shown in FIGS. 10 (a) and 10 (b), a large number of hook bolts 153 must be tightened during the panel mounting operation, which requires a lot of time for the panel mounting operation. There was a problem.
Japanese Patent Laid-Open No. 11-152849

In view of the above-described problems of the prior art, the present invention provides a panel , a panel mounting structure, and a panel mounting structure that can perform panel mounting work easily and in a short time and can prevent chatter noise. An object is to provide a cooling tower provided.

In order to achieve the above object, a panel according to the present invention comprises a panel body facing a panel mounting surface of a panel mounting frame to which the panel is mounted, and a mounting base formed on both sides of the panel body and pressed against the panel mounting surface. Provided, forming a latching portion on each mounting base, and penetrating the panel mounting frame from the body portion of the panel fixture pressed against the panel fixture mounting surface formed on the back side of the panel mounting surface. In the panel that is latched by the latching claw provided on the extending arm , each mounting base has a locking projection with the tip side provided on the mounting base of a separate panel that faces the mounting base facing upward Alternatively, the rear side engages with the upward-facing locking concave portion, and the rear side is formed with the upward-facing locking concave portion or the distal end side with the upward-facing locking convex portion, and is separated from the mounting base. Wherein the fitting projection or fitting recess for fitting recess or fitting projection and the fitting provided on the mounting base of the channel is formed (first invention).

In the following, in order to achieve the above object, the panel mounting structure of the present invention, the hooking portion is formed on each of the mounting base portion which is provided on both sides of the panel body facing the panel mounting surface of the panel mounting frame for mounting the panel A panel mounting structure for mounting the panels to a panel mounting frame using a panel fixing tool that abuts the mounting bases of the plurality of panels and fixes the butted portions to the panel mounting surface. A panel fixture main body pressed against the panel fixture mounting surface formed on the back side of the surface, a pair of arms extending from the panel fixture main body through the panel mounting frame and sandwiching the mounting bases abutted against each other; , they are formed in each of these arms, and a locking pawl to be engaged with the engaging portion provided on each of the mounting base portion, the panel fixing The body is formed with a groove opened to the arm tip side at an intermediate position between the pair of arms, and a pair formed on the panel mounting frame corresponding to the pair of arms in order to pass the pair of arms through the panel mounting frame. The panel mounting frame portion between the insertion holes of the first fixing portion engageable with the groove in the panel fixing body, and the panel fixing body portion on both sides of the groove in the panel fixing body. A second engagement portion is formed, the first engagement state in which the groove in the panel fixture body and the first engagement portion are engaged, the panel fixture body portion on both sides of the groove in the panel fixture body, and the first and a second engagement engaging the second engagement portion, characterized in that is a switching mechanism ing (second invention).

In this case, a connecting means for connecting the mounting bases is provided at the abutting portion where the mounting bases face each other, and this connecting means is a locking recess or locking protrusion on one side formed in one mounting base. And a locking projection or locking recess on the other side that engages with a locking recess or locking projection on one side ( third invention). ).

In addition, a sealing unit that seals between the mounting bases is provided at the abutting part where the mounting bases are butted, and this sealing unit is a fitting convex part or a fitting concave part on one side formed in one mounting base part. And the other fitting base or the fitting concave portion or the fitting convex portion on the other side that fits into the fitting convex portion or the fitting concave portion ( fourth invention). .

Moreover, the panel fixing tool main body can be formed with a picking portion that can be picked with a human finger ( fifth invention).

To achieve the above object, the cooling tower of the present invention, the second invention, the third invention, the fourth invention also is characterized by having a panel mounting structure of the fifth aspect of the present invention (sixth invention) .

According to the panel 及 beauty panel mounting structure of the present invention, when the engaging portion formed in the mounting base of the panel is latched by the arm formed locking pawl of the panel fixture, the base with said mounting panel mounting frame Since the panel is fixed while pressed against the panel mounting surface, it is possible to suppress the vibration of the panel due to the vibration of the device or the like or the influence of the wind, and the occurrence of chatter noise.
In addition, since the mounting base is fixed to the panel mounting surface by an extremely simple operation such as hooking the latching claw of the panel fixing tool on the latching portion of the mounting base, the panel mounting operation can be performed easily and in a short time. it can.

In addition, each mounting base, the inner side locking portion or the rear side distal end side provided on the mounting base upward of separate panel is engaged with an upward engaging recess upward to be matched to the base with said mounting By assuming that the locking concave portion or the locking convex portion with the tip side facing upward is formed, it is possible to constitute a connecting means for connecting the mounting bases to the abutting portion where the mounting bases are butted against each other. By means, the adjacent panels can be more firmly connected.

  In addition, each mounting base is formed with a fitting convex or fitting concave that fits with a fitting concave or fitting convex provided on the mounting base of a separate panel that is abutted against the mounting base. By providing the sealing means, a sealing means for sealing between the mounting bases can be configured at the abutting portion where the mounting bases are abutted with each other. By this sealing means, for example, the panel constituting the exterior wall of the cooling tower can be formed. In the applied embodiment, water in the cooling tower can be reliably prevented from leaking from between the panels to the outside of the cooling tower.

  Here, it is assumed that the panel fixing body has a groove opened to the tip side of the arm at an intermediate position between the pair of arms, and corresponds to the pair of arms so that the pair of arms penetrates the panel mounting frame. In the panel mounting frame portion between the pair of insertion holes formed in the panel mounting frame, there are a first engaging portion that can be engaged with the groove in the panel fixing body, and on both sides of the groove in the panel fixing body. It is assumed that a second engagement portion that can be engaged with the panel fixture main body portion is formed, a first engagement state in which a groove in the panel fixture main body and the first engagement portion are engaged, and panel fixation By switching between the second engagement state in which the panel fixture main body portions and the second engagement portions on both sides of the groove in the fixture main body are engaged, 1 engaging part By setting the first engagement state to be combined, each locking claw can be arranged at a position away from each latching portion by a distance corresponding to the plate thickness dimension of the panel mounting frame in the panel fixture pushing direction, After that, by engaging in the second engagement state in which the panel fixture main body portions on both sides of the groove in the panel fixture main body and the second engagement portion are engaged, each latching claw is securely hooked on each latching portion. Can be stopped.

  In addition, the panel fixture main body is formed with a knob that can be picked by a human finger, so that the mounting operation of the panel fixture and the first engagement state and the second engagement state can be achieved. And the like can be more easily performed.

  Next, according to the cooling tower of the present invention, since it is configured to have the panel mounting structure of the present invention, the exterior wall can be constructed easily and in a short time, and the influence of vibration of equipment and the wind Generation of chatter noise can be prevented by suppressing vibration of the exterior wall due to the like.

Hereinafter, embodiments of a panel , a panel mounting structure, and a cooling tower according to the present invention will be described with reference to the drawings.

1 to 8 show an embodiment of a panel , a panel mounting structure and a cooling tower according to the present invention.
A cooling tower 1 shown in FIG. 1 is a cross-flow cooling tower that cools hot water sent from air conditioning equipment such as factory equipment or buildings. In this cooling tower 1, a ventilation space 2 is provided at the center of the tower. The air blower 3 is installed on the tower, and an air flow from the side louver 4 through the ventilation space 2 to just above the air blower 3 is generated by the operation of the air blower 3. Hot water flowing down the installed filler 5 is cooled.

  The exterior wall 10 of the cooling tower 1 is formed by connecting a plurality of strip-shaped panels 11 extending vertically, and a required panel that is horizontally placed between columns (not shown) that constitute the framework of the cooling tower 1. Each panel 11 is supported on the mounting frame 12.

The panel mounting frame 12 is made of angle steel, and the front surface 13 and the back surface 14 of one side are directed upward and downward, respectively.
Further, at the other side portion of the panel mounting frame 12, the front surface is a panel mounting surface 15 that faces the outside of the cooling tower 1, and the back surface is a panel fixture mounting surface 16 that is inside the cooling tower 1. Is directed.

Each panel 11 is made of resin and includes a panel body 20 that faces the panel mounting surface 15 of the panel mounting frame 12 as shown in FIG.
The panel body 20 has a curved shape in which the cross-sectional shape bulges outside the cooling tower 1, and mounting bases 21 that are pressed against the panel mounting surface 15 are formed on both sides of the panel body 20. Yes.

As shown in FIG. 3, each attachment base portion 21 is formed with a latching portion 22 that projects inward in the width direction of the panel 11 and extends in the full length direction between one end and the other end of the panel 11. ing.
A protruding portion 23 that protrudes in a direction away from the panel mounting surface 15 is formed over the entire region in the full length direction of the panel at the front end in the extending direction of each latching portion 22.
The protrusions 23 function as ribs for reinforcing the panel 11, and the deformation of the panels can be suppressed by the protrusions 23, which contributes to maintaining an appropriate attachment state of the panel 11 to the panel attachment frame 12.

Right to the mounting base portion 21 in FIG. 3 of each panel 11, inner room of the distal end side provided on the mounting base portion 21 of the separate panels 11 abut the mounting base portion 21 is engaged with the upward engaging convex portion 26 A locking recess 24 with the side facing upward is formed, and a fitting projection 25 is formed that fits with a fitting recess 27 provided in the mounting base 21 of the separate panel 11 that is abutted against the mounting base 21. ing.
The left mounting base 21 in FIG. 3 of each panel 11 has a locking projection 26 that engages with a locking recess 24 provided in the mounting base 21 of a separate panel 11 that is abutted against the mounting base 21. In addition to being formed, a fitting recess 27 is formed that fits with the fitting protrusion 25 provided on the mounting base 21 of the separate panel 11 that is abutted against the mounting base 21.

  As shown in FIG. 2 (a), the abutting portion 30 in which the mounting base 21 in one panel 11 of the panels 11, 11 adjacent to each other and the mounting base 21 in the other panel 11 are abutted is used as the panel mounting panel 12. In order to fix to the mounting surface 15, a panel fixture 31 is attached to the abutting portion 30 so as to sandwich a part of the panel mounting frame 12 together with the hooking portion 22 of the panel 11.

  The panel fixture 31 is made of resin, and as shown in FIG. 4, a panel fixture body 32 pressed against the panel fixture mounting surface 16, and extends from the panel fixture body 32 through the panel mounting frame 12. , And a pair of arms 33 and 33 for holding the mounting bases 21 and 21 faced to each other.

In the panel fixture main body 32 of the panel fixture 31, a groove 34 opened to the arm distal end side at the middle position between the pair of arms 33, 33 is formed so as to extend in the panel full length direction.
The panel fixture main body 32 is formed with a knob 35 that can be picked by a human finger.

A locking claw 36 projecting inward is formed on the opposing surface of the tip of the pair of arms 33, 33 of the panel fixture 31, and the hooks provided on the mounting bases 21 of the panels 11, 11 adjacent to each other. It engages with the stop 22.
In each locking claw 36, an inclined surface 37 that is inclined so as to spread outward as it advances toward the arm tip side is provided at a portion that is first brought into contact with the latching portion 22 when the panel fixture is pushed. Yes.

As shown in FIG. 2B, the panel mounting frame 12 is formed with a pair of insertion holes 40, 40 corresponding to the pair of arms 33, 33 in order to penetrate the pair of arms 33, 33. Yes.
In the panel mounting frame portion between the insertion holes 40, 40, a first engaging portion 41 that can be engaged with the groove 34 in the panel fixing body 32 and panel fixing on both sides of the groove 34 in the panel fixing body 32. A second engaging portion 42 that can be engaged with the tool main body portion is formed.
The first engaging portion 41 and the second engaging portion 42 are connected in the full length direction of the panel 11, that is, in the vertical direction in FIG. 2 (b), and the first engaging portion 41 is in the upper stage and the second engaging portion. The joint portions 42 are respectively arranged on the lower stage.

Next, the panel mounting operation will be described below with reference to FIGS.
In the description of the panel mounting operation described below, for convenience of description, the panel previously attached to the panel mounting frame 12 is referred to as “the previous panel 11 ′” and will be attached to the panel mounting frame 12 from now on. The panel will be referred to as “rear panel 11”.

First, as shown in FIG. 5 (a), the locking projection 26 in the left mounting base 21 of the rear panel 11 is positioned with respect to the locking recess 24 in the right mounting base 21 of the previous panel 11 '. After the positioning is completed, the locking projection 26 is pushed into the locking recess 24 and the mounting bases 21 on both sides of the rear panel 11 are pressed against the panel mounting surface 15.
Accordingly, as shown in FIG. 5B, the right mounting base 21 of the previous panel 11 ′ and the left mounting base 21 of the rear panel 11 form a pair of insertion holes 40, 40 in the panel mounting frame 12. Are connected to each other at a position corresponding to, and in this abutting portion 30, a connecting means 45 is formed by engagement of the locking recess 24 and the locking projection 26, and the fitting projection 25 and the fitting recess 27 are The sealing means 46 is configured by fitting.

Next, as shown in FIG. 6A, the knob 35 is picked with fingers to carry the panel fixture 31 to the vicinity of the pair of insertion holes 40, 40, and the first engaging portion 41 and the groove 34 face each other. In this manner, the panel fixture 31 is positioned with respect to the panel mounting frame 12.
After the positioning is completed, the panel fixture 31 is pushed in such that the pair of arms 33 and 33 are inserted into the pair of insertion holes 40 and 40.
Then, as shown in FIG. 6B, first, the inclined surface 37 of each locking claw 36 comes into contact with each latching portion 22.

As the panel fixture 31 is further pushed in, a wedge action between the inclined surface 37 of each locking claw 36 and each latching portion 22 causes a pair of arms 33, 33 is expanded.
When the panel fixing tool 31 is continuously pushed into the first engagement state in which the groove 34 and the first engagement portion 41 are engaged, as shown in FIG. 7B, the pair of arms 33 and 33 are elastically restored. It is the original shape before spreading due to force, and at a position away from the protrusion 23 of each latching portion 22 by a distance corresponding to the thickness of the panel mounting frame 12 in the panel fixture pushing direction. Each locking claw 36 is arranged.

  When the panel fixture 31 is pulled back after the first engagement state is established, as shown in FIG. 8A, the protrusions 23 of the respective latching portions 22 and the respective locking claws 36 are brought into contact with each other. Thus, each latching claw 36 is securely latched to each latching portion 22.

Next, the panel fixture 31 is moved downward, and as shown in FIG. 8B, a second engagement state in which the panel fixture main body portions on both sides of the groove 34 and the second engagement portion 42 are engaged. To do.
As a result, the butted portion 30 where the right mounting base 21 of the previous panel 11 ′ and the left mounting base 21 of the rear panel 11 are pressed against each other is fixed in a state of being pressed against the panel mounting surface 15.

  By repeating the series of operations described above, the plurality of panels 11 are sequentially attached to the panel mounting frame 12, and the exterior wall 10 of the cooling tower 1 is constructed.

According to the present embodiment, the following operational effects can be obtained.
(1) When the latching portion 22 formed on the mounting base portion 21 of the panel 11 is latched by the latching claw 36 formed on the arm 33 of the panel fixture 31, the mounting base portion 21 becomes the panel of the panel mounting frame 12. Since it is fixed in a state of being pressed against the mounting surface 15, it is possible to suppress vibration of the panel 11 due to vibrations of devices and the like and the influence of wind and the like, thereby preventing chatter noise.
(2) Since the mounting base 21 is fixed to the panel mounting surface 15 by an extremely simple operation such as hooking the locking claw 36 of the panel fixing tool 31 on the hooking portion 22 of the mounting base 21, the panel mounting work is easy. And it can be performed in a short time.
(3) Each mounting base 21 includes a locking recess 24 or a locking recess 24 that engages with a locking protrusion 26 or a locking recess 24 provided on the mounting base 21 of a separate panel 11 that is abutted against the mounting base 21. Since the locking projections 26 are formed, the connecting means 45 that connects the mounting bases 21 to the abutting part 30 where the mounting bases 21 face each other can be configured, and the connecting means 45 adjoins each other. The panels 11 can be more firmly connected.
(4) Each mounting base 21 is fitted with a fitting convex part 25 fitted with a fitting concave part 27 or a fitting convex part 25 provided in the mounting base part 21 of the separate panel 11 that is abutted against the mounting base part 21. Alternatively, since the fitting recess 27 is formed, the sealing means 46 that seals between the mounting bases 21 can be formed in the abutting part 30 where the mounting bases 21 are abutted with each other. 1 can be reliably prevented from leaking from between the panels 11 to the outside of the cooling tower 1.
(5) By setting the first engagement state in which the groove 34 in the panel fixture main body 32 and the first engagement portion 41 are engaged, the protrusions 23 of the respective latching portions 22 are pushed in the panel fixture pushing direction. Each locking claw 36 can be disposed at a position that is separated by a distance corresponding to the plate thickness dimension of the panel mounting frame 12, and then the panel fixture main body portion on both sides of the groove 34 in the panel fixture main body 32 and the second portion. By setting the engagement state to the second engagement state in which the engagement portion 42 is engaged, the engagement claws 36 can be reliably engaged with the engagement portions 22.
(6) Since the panel fixture main body 32 is formed with a knob 35 that can be picked by a human finger, the mounting operation of the panel fixture 31 and the first engagement state and the second engagement state And the like can be more easily performed.
(7) The exterior wall 10 can be constructed easily and in a short time, and vibrations of the exterior wall 10 due to vibrations of equipment and the like and the influence of wind can be suppressed to prevent chatter noise.

As described above, the panel , the panel mounting structure, and the cooling tower of the present invention have been described based on the embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and for example, the panel 11 and the panel fixture. The configuration can be changed as appropriate within a range not departing from the gist, such as forming 31 with a metal material such as FRP, aluminum, or an iron-based material.

The panel and the panel mounting structure of the present invention have the characteristics that the panel mounting operation can be performed easily and in a short time and the occurrence of chatter noise can be prevented. For example, it can also be used for building exterior walls such as assembly houses and storerooms.

It is a perspective view which shows one Example of the cooling tower of this invention. A panel attachment structure is shown, (a) is a principal part plane sectional view, (b) is a P arrow view of (a). It is structure explanatory drawing of a panel. It is the A section enlarged view of FIG. It is panel attachment work explanatory drawing (1). It is a panel attachment work explanatory drawing (2). It is a panel attachment work explanatory drawing (3). It is a panel attachment work explanatory drawing (4). It is explanatory drawing (1) of a prior art. It is explanatory drawing (2) of a prior art.

DESCRIPTION OF SYMBOLS 1 Cooling tower 10 Exterior wall 11 Panel 12 Panel mounting frame 15 Panel mounting surface 16 Panel fixture mounting surface 20 Panel main body 21 Mounting base 22 Latching part 24 Locking recessed part 25 Fitting convex part 26 Locking convex part 27 Fitting concave part DESCRIPTION OF SYMBOLS 30 Butting part 31 Panel fixing tool 32 Panel fixing tool main body 33 Arm 34 Groove 35 Knob part 36 Locking claw 40 Insertion hole 41 1st engaging part 42 2nd engaging part 45 Connection means 46 Sealing means

Claims (6)

A panel main body facing a panel mounting surface of a panel mounting frame for mounting a panel, and a mounting base formed on both sides of the panel main body and pressed against the panel mounting surface, and forming a latching portion on each mounting base, The latching portion is latched by a locking claw provided on an arm extending through the panel mounting frame from the body portion of the panel fixing member pressed against the panel fixing member mounting surface formed on the back side of the panel mounting surface. In each panel, each mounting base has a rear end engaged with a locking projection with the tip facing upward or a locking recess with the back facing upward, provided on the mounting base of a separate panel abutted against the mounting base. A locking recess or fitting provided on a mounting base of a separate panel that is abutted against the mounting base is formed with a locking concave that faces upward or a locking convex that faces upward. Panel, characterized in that the fitting projection or fitting recess fitted with the convex portion is formed. A panel mounting frame is attached to the panel mounting frame that faces the panel mounting surface of the panel body. A panel mounting structure for mounting the panels to the panel mounting frame using panel fixing tools that are fixed to the surface, and the panel fixing tools are pressed against the panel mounting surface formed on the back side of the panel mounting surface. A tool body, a pair of arms extending from the panel fixing body through the panel mounting frame and sandwiching the mounting bases that are abutted with each other, and latches formed on each of these arms and provided on each mounting base parts and a locking pawl which engages the, the panel fixture body, the arm leading end side in an intermediate position of the pair of arms In the panel mounting frame portion between the pair of insertion holes formed in the panel mounting frame corresponding to the pair of arms in order to pass the pair of arms through the panel mounting frame A first engagement portion engageable with the groove in the fixture body, and a second engagement portion engageable with the panel fixture body portions on both sides of the groove in the panel fixture body. A first engagement state in which the groove and the first engagement portion are engaged, and a second engagement state in which the panel fixture main body portions on both sides of the groove in the panel fixture main body and the second engagement portion are engaged. panel mounting structure, wherein ing is a capable of switching. The abutting portion where the mounting bases are abutted with each other is provided with a connecting means for connecting the mounting bases. The connecting means includes a locking recess or a locking protrusion on one side formed on one mounting base, and the other. of formed in the mounting base, one side of the locking recess or panel mounting structure according to claim 2, wherein the ing more and locking projections or locking recesses on the other side to engage the engagement projections . Sealing means for sealing between the mounting bases is provided at the abutting part where the mounting bases are butted together, and this sealing means includes a fitting convex part or a fitting concave part on one side formed on one mounting base part, formed on the other of the mounting base, according to claim 2 or 3, wherein the ing more and fitting recess or fitting projection on the other side to be fitted to the fitting projection or fitting recess of one side Panel mounting structure. The panel fixing device body, panel mounting structure according to claim 2, 3 or 4, wherein the knob portion that can be pinched by human fingers is formed. A cooling tower comprising the panel mounting structure according to claim 2, 3, 4 or 5 .

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