Pinch valve

Abstract

The utility model relates to the technical field of hose opening and closing, in particular to a pinch valve which comprises a screw motor, a fixing seat is fixedly mounted at one end of the screw motor, a telescopic block is fixedly mounted at the output end of the screw motor, a valve body is mounted at one end of the fixing seat, and a limiting column penetrates through one end of the valve body. The top end of the limiting column is connected with a rotary knob through a pin shaft, the bottom end of the limiting column is fixedly connected with a spring, the bottom end of the spring is fixedly connected with a pass-stop block, and the rotary knob, the pass-stop block, the spring and the limiting column which are installed at one end of the valve body can well prevent the telescopic block from pinching fingers; and the telescopic block can be limited to extend into the storage groove in the valve body under the rotation of the driving pass-stop block, so that the use safety of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hose opening and closing, in particular to a pinch valve. Background Art

[0002] A pinch valve uses a hose as a valve for opening and closing and a passage. The rubber hose is opened and closed by the relative movement of the chucks above and below it, and the chucks are moved by means of a manual mechanism or pneumatic means. The main characteristics of the pinch valve are smooth passage, wear resistance and corrosion resistance. It is a good wear-resistant valve and can also be used as a corrosion-resistant valve. It is suitable for transporting materials containing solid particles such as ore sand slurry and corrosive materials, but the working temperature and pressure are not high.

[0003] The existing pinch valve usually uses a motor to drive the telescopic block to move. The telescopic block squeezes the hose to prevent the flow of liquid in the hose. However, when replacing the hose or repairing the device, the motor is likely to start accidentally and cause finger pinching, and its use safety is poor. Therefore, we propose a pinch valve. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a pinch valve, which has high safety and can prevent the advancement of the telescopic block when replacing the hose or repairing the device.

[0005] The technical solution of the utility model is as follows:

[0006] A pinch valve includes a lead screw motor. One end of the lead screw motor is fixedly installed with a fixed seat. The output end of the lead screw motor is fixedly installed with a telescopic block. One end of the fixed seat is installed with a valve body. One end of the valve body penetrates through a limit post. The top end of the limit post is connected with a knob through a pin shaft. The bottom end of the limit post is fixedly connected with a spring. The bottom end of the spring is fixedly connected with a stop block. One side of the upper surface of the stop block is provided with a long strip-shaped groove.

[0007] In a further technical solution, the valve body is a semi-hollow structure. The bottom end of the valve body is provided with a cut. The middle end of the valve body is provided with a storage groove. The bottom end of the storage groove is circular.

[0008] In a further technical solution, the telescopic block is a long strip-shaped structure. The bottom end of the telescopic block can be inserted into the long strip-shaped groove on the surface of the stop block.

[0009] In a further technical solution, one side of the upper surface of the valve body is provided with a step, and the knob can be stuck into the step.

[0010] In a further technical solution, a hose is installed at the bottom end of the storage groove.

[0011] The beneficial effect of the utility model is:

[0012] By providing a knob, a check block, a spring and a limit post installed at one end of the valve body, it can effectively prevent the telescopic block from pinching fingers. When driving the rotation of the check block, it can limit the telescopic block from extending into the storage groove on the valve body, greatly improving the safety of using this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0014] Description of the reference numerals:

[0015] 1, lead screw motor; 2, fixed seat; 3, telescopic block; 4, valve body; 5, hose; 6, knob; 7, check block; 8, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following further describes the embodiments of the present utility model with reference to the drawings.

[0017] Embodiment:

[0018] As Figure 1 shown, the pinch valve includes a lead screw motor 1, a fixed seat 2 is fixedly installed at one end of the lead screw motor 1, a telescopic block 3 is fixedly installed at the output end of the lead screw motor 1, a valve body 4 is installed at one end of the fixed seat 2, a limit post penetrates through one end of the valve body 4, a knob 6 is connected to the top end of the limit post through a pin shaft, a spring 8 is fixedly connected to the bottom end of the limit post, a check block 7 is fixedly connected to the bottom end of the spring 8, a long strip-shaped groove is formed on one side of the upper surface of the check block 7, and a hose 5 is installed at the bottom end of the storage groove.

[0019] The working principle of the above technical solution is as follows:

[0020] When the device is working, by starting the lead screw motor 1, the output shaft on the lead screw motor 1 drives the telescopic block 3 to move, thereby squeezing the hose 5 on the valve body 4. At this time, the liquid in the hose 5 cannot flow. When it is necessary to replace or remove the hose, the knob 6 can be pulled upward under the action of the spring 8, and then the knob 6 is rotated 180 degrees, so as to drive the check block 7 to rotate through the limit post, so that the opening direction of the long strip-shaped groove on the check block 7 faces left. At this time, the other side of the check block 7 can prevent the advancement of the telescopic block 3, preventing the telescopic block 3 from pinching the fingers of the staff and improving the safety of the device.

[0021] In another embodiment, as Figure 1 shown, the valve body 4 is a semi-hollow structure, a cut is provided at the bottom end of the valve body 4, the cut enables the check block 7 to be installed at the bottom end of the valve body 4, a storage groove is provided in the middle of the valve body 4, and the bottom end of the storage groove is circular, which can well install the hose 5.

[0022] In another embodiment, as Figure 1 shown, the telescopic block 3 is in a strip-shaped structure, and the bottom end of the telescopic block 3 can be inserted into the strip-shaped groove on the surface of the through-stop block 7, so that the bottom of the telescopic block 3 can penetrate deep into the strip-shaped groove when being pushed forward.

[0023] In another embodiment, as Figure 1 shown, a step is provided on one side of the upper surface of the valve body 4, and the knob 6 can be snapped into the step, so that the through-stop block 7 cannot rotate easily.

[0024] The above embodiments only represent the specific implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. Pinch valve, comprising a lead screw motor (1), characterized in that: One end of the lead screw motor (1) is fixedly installed with a fixed seat (2), the output end of the lead screw motor (1) is fixedly installed with a telescopic block (3), one end of the fixed seat (2) is installed with a valve body (4), one end of the valve body (4) penetrates through a limit post, the top end of the limit post is connected with a knob (6) through a pin shaft, the bottom end of the limit post is fixedly connected with a spring (8), the bottom end of the spring (8) is fixedly connected with a through-stop block (7), and a long strip-shaped groove is formed on one side of the upper surface of the through-stop block (7).

2. The pinch valve according to claim 1, wherein: The valve body (4) is of a semi-hollow structure, a notch is formed at the bottom end of the valve body (4), a storage groove is formed in the middle end of the valve body (4), and the bottom end of the storage groove is circular.

3. The pinch valve according to claim 1, wherein: The telescopic block (3) is of a long strip-shaped structure, and the bottom end of the telescopic block (3) can be inserted into the long strip-shaped groove on the surface of the through-stop block (7).

4. The pinch valve according to claim 1, wherein: A step is formed on one side of the upper surface of the valve body (4), and the knob (6) can be clamped into the step.

5. The pinch valve according to claim 2, characterized in that: A hose (5) is installed at the bottom end of the storage groove.

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