JPH068631B2 - Roller pump clamp - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Technical Field The present invention locks a liquid feeding tube used in a roller pump in a fixed position, and winds the liquid feeding tube into a roller.
Alternatively, the present invention relates to a tube clamp for a roller pump that prevents separation from the pump.

Prior Art and its Problems Since the liquid feeding tube mounted on the roller pump receives tension in the rotating direction of the roller arm, it may be wound around the roller or the tube may come off from the pump head.

Therefore, although various measures have been taken regarding the clamps that lock the liquid transfer tube, the roller used in the medical field
To explain using a pump clamp as an example, the part of the clamp body into which the tube is fitted is fixed by a spring or the like when the clamp body is replaced according to the diameter of the tube, or The lever shaft is rotated by the lever, and in this case, the mechanism is a lateral slide system that has a link mechanism, so that the clamp is moved laterally through the link, etc., so the clamp body part can be operated by a simple one-touch operation. It cannot be released, and the tubes cannot be clamped one by one with a light operation.It takes time to clamp or release the clamp, and the clamp body cannot be separated. It has the drawback of being difficult to operate when clamping.

II: Object of the invention The present invention has been made in order to solve the above-mentioned drawbacks of the prior art. The clamp can be divided into a fixed portion and a movable portion by a one-touch operation. The body can be taken out, and the tube can be individually clamped, and as a means for enabling these operations, this can be done by only one-touch operation of the lever. is there.

That is, according to the present invention, two sets of tube holding means, each of which is composed of a fixed part and a movable part that is dividable from the fixed part for holding the tube on the outer circumference of the tube, and each of the movable parts are provided. Two shafts that are engaged with the movable parts so as to move toward and away from the fixed part in the vertical direction and that can slide in the vertical direction, and move the shafts in the direction in which the fixed part and the movable part are separated from each other. Shaft driving means for giving a force to cause the shafts, two sets of stopper means for engaging the two shafts to prevent the vertical movement of the shafts, a spring for constantly pressing the stopper means in the shaft direction, and a spring for the springs. A rotatable joint integrated with a lever shaft for simultaneously moving the two sets of stopper means in a direction away from the two shafts against the pressing force in the shaft shift direction to release the engagement. A roller pump for clamping, characterized in that it consists of ingredients.

III: Detailed Description of the Invention Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front sectional view of a main part of a tube clamp for roller pump according to the present invention, showing a state in which a tube is clamped.

A lever (not shown) is provided at the center, a lever shaft (2) is formed at the rear of the lever, and stopper means (3) are provided at the top and bottom of the lever shaft, respectively, and the stopper means (3) is Each of the stopper means (3) connected to the lever shaft (2) and the connecting member (4) integrated with the lever shaft (2) is integrally connected to the lever shaft (2) by the connecting member (4). Only the convex portion (5) is formed at the tip, and the convex portion (5) is a leaf spring (1) wound around the winding tool (16).
Due to 5), while always receiving a pressing force in the direction of the shafts (6), they are engaged with the recesses (7) provided in the lower parts of the shafts (6).

A movable part (8) corresponding to the clamp arm is formed above the shaft (6), and the upper end of the shaft (6) is freely rotatable so that the shaft (6) serves as the rotation axis of the movable part (8). The clamp body (9a, 9b) is detachably engaged with the movable portion (8) while being fitted, and the fixed portion (corresponding to the case body) below the movable portion (8) is provided. 10) is provided, and at the upper end of the fixed part (10), the lower clamp body (9
a) is provided, and the holding means is constituted by the clamp main body in which the upper and lower tube holding surfaces are formed, and the tube is clamped by their connection.

On the other hand, a spring insertion hole (11) is provided at the center of the lower part of each of the shafts (6), and a coil spring (12) is inserted into the insertion hole (11) as a vertical driving means of the shaft. The lower part of the coil spring (12) is a spring stopper.
It is wound around and fixed to (13).

FIG. 2 is a view showing a state where the clamp bodies (9a, 9b) are released. By simply rotating the lever (not shown) as shown in FIG. 4, the lever shaft (2) also rotates in the same direction at the same time, and the connecting member (4) integrated with the lever shaft (2) also moves to the lever. Rotate in the same direction as the shaft (2) at the same time. Therefore, the stopper means (3) receives a force against the pressing force of the leaf spring (15) toward the shaft (6), and moves in a direction away from the shaft (6). Therefore, the recess (7) of the shaft (6) and the projection (5) of the stopper means (3) are disengaged, and the shaft (6) is driven upward by the coil spring (12) to be clamped. Is released.

Thus, the two respective shafts (6) disengaged from the stopper means (3) by one-touch operation of the lever.
Has a spring insertion hole (11) formed in the center of the inside, and the spring is inserted into this, so the coil spring (12)
Although the pressing force of the shaft is suppressed in the normal engagement state of the stopper and the shaft, the two shafts released from the stopper are inevitably exposed to the pressing force of the spring. Therefore, the fixed portion and the movable portion are simultaneously driven in the direction in which the fixed portion and the movable portion are separated (upward in the figure), and by this, the left and right movable portions further fitted to the upper end portion of the shaft. The clamp arm is also pushed up at the same time, and the fixed part and the movable part are separated.

When the lever is operated, the clamp arm, which is a movable part moved upward from the above-described structure, is simultaneously horizontally rotated about a right angle as shown in FIG. By mounting the tube, it becomes easier to attach and detach the tube.

After returning the lever (not shown) to the original state, first attach the tube to the roller part of the roller pump, attach the tube to the lower clamp body (9a) with one hand first, and move with the other hand. By depressing the part (8), the tube is clamped to one clamp body (9a, 9b), and in the same manner, the tube is attached to the other clamp so that the tube is attached to the roller pump device. It

Also, as shown in FIG. 5, the clamp bodies (9a, 9b) are also
The structure is such that it can be easily attached and detached from the movable part (8) and the fixed part (10).

IV: Effects of the Invention As described above, two sets of tube holding means, each of which is composed of a fixed part and a movable part that is separable from the fixed part, for holding the tube on the outer circumference of the tube, and the movable parts. Are engaged with the movable parts so as to approach and separate from the fixed parts in the vertical direction, and two shafts that are slidable in the vertical direction and the fixed part and the movable part are separated from each other. A shaft driving means for giving a force for moving the shaft, two sets of stopper devices for engaging the two shafts to prevent the shaft from moving in the vertical direction, a spring for constantly pressing the shaft device in the shaft direction, The two sets of stopper means are connected to each other against the pressing force of the spring in the shaft shifting direction.
Clamps for roller pumps, characterized in that the clamps for rollers and pumps are integrated with the lever shafts for simultaneously moving in the directions away from the shafts and releasing the engagement. Can be released only by one-touch operation of the lever, and it can be divided into a fixed part and a movable part of the clamp, which allows the clamp main body, which is the tube holding surface forming part, to be taken out.
And the tubes can be easily clamped individually by one person.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of the front of a tube clamp for roller pump according to the present invention, and FIG.
FIG. 3 is a perspective view of the whole, and FIG.
FIG. 5 is a partial exploded view of the clamp body, the fixed portion, and the movable portion when horizontally rotated. 1 ... Lever, 2 ... Lever Shaft, 3 ... Stopper means,
4 ... Connecting tool, 5 ... Convex part, 6 ... Shaft, 7 ... Recessed part, 8 ...
Movable part, 9 ... Clamp body, 10 ... Fixed part, 11 ... Spring insertion hole, 12 ... Coil spring, 13 ... Spring stopper, 14 ... Spring locking tool, 15 ... Leaf spring, 16 ... Winding tool.

Claims (1)

[Claims] 1. A set of two tube holding means comprising a fixed part for holding the tube on the outer circumference of the tube and a movable part separable from the fixed part, and each of the movable parts. And two movable shafts that are engaged with the movable parts so as to approach and separate from each other in the vertical direction and are slidable in the vertical direction, and move the shafts in a direction in which the fixed part and the movable part are separated from each other. Shaft driving means for giving a force, two sets of stopper means for engaging the two shafts to prevent the vertical movement of the shaft, a spring for constantly pressing the stopper means in the shaft direction, and the shaft of the spring. Pivotable connector integrated with a lever shaft for simultaneously moving the two sets of stopper means in the direction away from the two shafts to release the engagement against the pressing force in the direction. Roller pump clamps, characterized in that Ranaru.