JP3099190B2 - Detachable connection bracket for civil engineering construction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of detachable connection fittings for civil engineering and construction work.

[0002]

2. Description of the Related Art Conventionally, frames for civil engineering and construction work, drainage, passage grooves,
As means for connecting a retaining wall or the like, a concave portion and a convex portion are formed in advance on each of the objects, and the concave portion and the convex portion of each of the objects are combined with each other to prevent lateral displacement. Was.

[0003]

SUMMARY OF THE INVENTION According to the present invention, there is provided a detachable connection fitting comprising a female member formed by assembling an anchor bolt, a base body, a claw holding ring body and a holding nut, and a front locking portion. The pin portion having the rear locking portion is a male shape.For example, the pin portion is buried on one side of the civil engineering construction frame, and the female component is buried at the same position on the other side, and the frame is sequentially formed. By connecting the above members in parallel, not only the lateral displacement but also the pull-out prevents the members from coming off.

[0004]

According to a first aspect of the present invention, there is provided a detachable metal fitting for civil engineering construction according to the first aspect of the present invention, wherein a head is provided at one end and a male screw is provided at the other end. An anchor bolt provided with a male screw, a base screw provided on one side with a female screw to which a male screw of the anchor bolt is screwed, and a base body provided with a male screw on the other side; A notch for insertion of a claw, a notch on the other side, and a through-hole on the inner side are provided between the claw pressing portion, and a separate claw is inserted into the notch for insertion of a claw. A nail press ring body assembled by inserting and attaching a separate ring to the outer peripheral portion of the nail press section, a fitting insertion section into which the nail press ring body can be inserted, and a female screw provided on an inner surface of the fit insertion section, A press nut having a flanged insertion hole at an end of the insertion portion; and a head inserted into the insertion notch constituting the claw pressing ring body at the head. It has a front locking portion of a shape that can fly out from the position of the claw, and a pin portion having a rear locking portion on the rear side is separately provided. After screwing, the male screw of the base body is screwed into the female screw of the holding nut in which the claw holding ring body is inserted and assembled, and only the anchor bolt portion is used for civil engineering construction work frames, drainage, and wiring. It is characterized in that the middle and upper locking portions of the pin portion and the upper portion of the pin portion are embedded and used in one side of a groove, a retaining wall, and the like, respectively, in the other side.

According to a second aspect of the present invention, the claw holding portion of the claw holding ring body has a concave portion formed on an outer peripheral portion and a convex portion formed on a predetermined portion of an inner peripheral portion of the ring. It is characterized by.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the first aspect of the present invention will be described.

A is a head 1 at one end and a male screw 2 at the other end.
An anchor bolt provided with.

Reference numeral b denotes a base body provided with a female screw 3 to which the male screw 2 of the anchor bolt a is screwed, and a male screw 4 provided on the other side. The slightly central portion forms a square flange 6. Furthermore, the inside of the male screw 4 forms a fitting portion 7.

Reference numeral c denotes a claw holding ring body having the following structure.

There is a claw pressing portion 8 facing one side, a notch 9 for inserting a claw between the claw pressing portion 8, a notch 10 on the other side, and a penetrating inner portion. Holes 11 are provided respectively. Further, a separate claw 12 is fitted into the claw insertion notch 9, and a separate synthetic resin ring 13 is fitted into the outer peripheral portion 14 of the claw presser 8 and assembled. At this time, the claw 12 is constantly pressed inward by the ring 13 and is locked by the edge of the claw pressing portion 8.

Reference numeral d denotes a holding nut, the structure of which is as follows.

A fitting portion 15 into which the claw holding ring c can be inserted, and a female screw 16 provided on the inner surface of the fitting portion 15, and a fitting hole 18 with a flange 17 at an end of the fitting portion 15. To form

Reference symbol e denotes a pin portion having the following structure.

The head has a front locking portion 19 which can protrude from the position of the claw 12 fitted in the fitting notch 9 constituting the claw holding ring body c. It has a rear locking portion 20 on the side.

After the male screw 2 of the anchor bolt a is screwed into the female screw 3 of the base member b having the above configuration, the female screw 16 of the holding nut d into which the claw holding ring body c is fitted is inserted. The male screw 4 of the base body b is screwed and assembled. Further, only the anchor bolt a portion is placed on one side of the frame f for civil engineering and construction work, and the front locking portion 1 is inserted into the pin portion e.
9 and the upper part of the pin part e are respectively embedded and used on the other side.

An embodiment according to the second aspect of the present invention is as follows.

Two claw holding portions 8 of the claw holding ring c
Form a recess 21 in the outer periphery. Further, a convex portion 22 is formed at a predetermined location on the inner peripheral portion of the ring 13.

Reference numeral 23 denotes a seal member interposed between the concrete frames f. Reference numeral 24 denotes a spanner having a claw 25 to be inserted into the notch 10 of the claw presser 8. 26 is a traffic space.

Further, the main part of the connecting step of the connecting fitting of the present invention will be described.

As shown in the drawing, the connecting fitting of the present invention has two projections 19 'formed on the front locking portion 19 of the pin portion e. The claw holding ring body c has two claws 12 which mesh with the projections 19 'of the pin portion e therein. When the pin portion e is pushed, the claw ring 12 does not come off due to the engagement between the projections 19' and the claws 12. The protrusion 19 'and the nail 1 as described above
The means for preventing the deviation from 2 will be described later. Therefore, the present invention is characterized by the connection by meshing and does not come off even if pulled.

Further, the claw 12 of the claw holding ring body c is always protruded toward the center of the claw holding ring body c by a spring 13 made of synthetic resin, and the projection 1 of the pin e is formed.
When 9 'is press-fitted, the spring 13 opens and the claw 12 expands outward. Further, in the connection fitting of the present invention, by rotating the spanner 24, the two claws 12 inserted into the claw holding ring body c are rotated, and the projection 19 'of the front locking portion 19 of the pin portion e is rotated. If the angle is shifted by 90 degrees, they will mesh or come off. That is, the connection state can be released.

[0022]

According to the first aspect of the present invention, there is provided a detachable connection fitting for civil engineering and construction work, comprising an anchor bolt having a head at one end and a male screw at the other end, and a male screw of the anchor bolt. A base body provided with a female screw to be screwed on one side and a male screw on the other side, and a claw holding portion on one side, and a claw fitting insertion notch between the base and the claw holding portion A notch is provided on the other side, and a through hole is provided on the inner side, and a separate ring is inserted into the notch for claw insertion, and a separate ring is inserted around the outside of the claw pressing portion. A claw press ring body that is fitted and inserted, a fitting portion into which the claw press ring body can be inserted, and a female screw provided on an inner surface of the fitting portion; a flanged fitting hole at an end of the fitting portion; And a front locking portion having a shape that can be protruded from the position of the claw inserted into the notch for insertion forming the claw pressing ring body on the head. A pin portion having a rear locking portion on the rear side is separately provided, and a male screw of an anchor bolt is screwed into a female screw of the base body, and then the claw pressing ring body is fitted and inserted thereinto. The male screw of the base body is screwed into the female screw of the nut and assembled. At the same time, only the anchor bolt portion is placed on one side of the civil engineering building construction frame, drainage, communication channel, earth retaining wall, etc. Since the locking part and the upper part of the pin part are embedded in the other side, respectively, unlike the conventional method,
In addition to preventing lateral displacement, it is extremely resistant to pulling, and has an excellent advantage that a frame or the like that is easily connected does not come off.

Further, according to the first aspect of the present invention, the pin portion and the claw holding ring body can be securely connected by a simple operation of inserting a spanner into the notch portion of the claw holding ring body and rotating it at a 90-degree angle. Can be connected or disconnected.

According to a second aspect of the present invention, the claw holding portion of the claw holding ring body has a recess formed in an outer peripheral portion,
Since the convex portion is formed at a predetermined position on the inner peripheral portion of the ring, there is an advantage that the ring does not swing when the pawl holding ring body is rotated by the spanner and the pawl is constantly pressed without biasing the pawl.

[Brief description of the drawings]

FIG. 1 is a perspective view of a detachable connection fitting for civil engineering and construction work according to the present invention before assembly.

FIG. 2A is a partially cutaway front view showing a connection state of the connection fitting, and FIG. 2B is a partially cutout right side view of A;

FIG. 3 is a partially cutaway vertical front view showing a connection state of the connection fitting.

FIG. 4 is an enlarged vertical sectional view showing a state before connection of the connection fitting of FIG. 3;

FIG. 5 is an enlarged vertical sectional view showing a state in which the spanner is rotated 90 degrees from the state of FIG. 4 and the connection fitting is connected.

FIG. 6 is a front view showing a state before connection of a frame body in which the connection fitting is embedded.

FIG. 7 is a front view showing a state where the camera is connected from the state shown in FIG. 6;

FIG. 8 is a right side view of the state of FIG. 7;

[Explanation of symbols]

 a Anchor bolt b Base body c Nail holding ring body d Holding nut e Pin part f Civil engineering construction frame 1 Head 2 Male screw 3 Female screw

Claims (2)

(57) [Claims] An anchor bolt having a head at one end and a male screw at the other end, and a female screw to which the male screw of the anchor bolt is screwed are provided on one side and a male screw is provided on the other side. The base body provided has a claw pressing portion on one side, and a notch portion for inserting a claw, a notch portion on the other side, and a through hole on the inner side, respectively, between the claw pressing portion. A claw press ring body assembled by inserting another claw into the notch for claw insertion and then inserting a separate ring around the outer periphery of the claw press section; and the claw press ring body can be inserted. A female nut is provided on the inner surface of the fitting portion and the fitting portion, a holding nut having a flanged fitting hole at an end of the fitting portion, and the claw holding ring body formed on the head. A pin having a front locking portion having a shape capable of being protruded from a position of the claw inserted into the notch for insertion, and a pin having a rear locking portion on the rear side; After the male screw of the anchor bolt is screwed into the female screw of the screw body, the male screw of the base body is screwed into the female screw of the holding nut in which the claw holding ring body is inserted and assembled, and the anchor bolt portion is assembled. Only one side of the frame for civil engineering and construction work, drainage, communication channel, earth retaining wall, etc., and the upper and lower locking portions of the pin portion and the upper portion of the pin portion should be embedded and used on the other side. Detachable connection metal fittings for civil engineering and construction. 2. The claw holding portion of the claw holding ring body has a concave portion formed on an outer peripheral portion and a convex portion formed on a predetermined portion of an inner peripheral portion of the ring.
Detachable connection metal fittings for civil engineering and construction work described.