Pipeline gate valve with self-locking protection function

Abstract

The utility model relates to a pipeline sluice valve with a self-locking protection function, which belongs to the technical field of pipeline sluice valves and comprises a pipe body, a sluice valve seat is arranged on the outer surface of the pipe body, a control unit is connected to the top end of the sluice valve seat, and the pipeline sluice valve is matched with a limiting wheel, a positioning block and a positioning column through a control handle, a connecting rod and a reset spring. According to the self-locking control handle for the pipeline gate valve, an effective self-locking effect can be achieved for the control end of the pipeline gate valve, control failure caused by control looseness of the gate valve when the control handle is mistakenly touched is prevented, and the control effect of the gate valve is improved; the positioning block and the positioning groove are guaranteed to be accurately clamped, the stable self-locking effect is achieved, self-locking failure is prevented, a multi-angle self-locking mode is provided, and the self-locking accuracy is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline gate valve technology, specifically relating to a pipeline gate valve with self-locking protection function. Background Technology

[0002] A gate valve is a type of valve commonly used in pipeline systems. Its main function is to open and close the flow of fluid in a pipeline. It is typically used in large-diameter pipelines, capable of completely blocking the flow of fluid. Moreover, it allows for flexible adjustment of the opening and closing of the pipeline according to usage requirements, and enables precise control of the pipeline flow rate.

[0003] For example, a Chinese patent discloses a self-locking protective pipeline control gate valve (publication number CN220016284U). Although this control gate valve can achieve a self-locking effect on the control adjustment rod of the pipeline, the self-locking structure of this control gate valve is located inside the gate valve cover. Not only is the self-locking angle small, but it is also difficult to observe whether the self-locking structure is in place, which brings instability and insecurity to the self-locking gate valve. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline gate valve with self-locking protection function, which can solve the problems mentioned in the background art.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A pipe gate valve with self-locking protection function includes a pipe body, a gate valve seat is provided on the outer surface of the pipe body, and a control unit is connected to the top of the gate valve seat;

[0007] The control unit includes a control handle, a connecting block connected to the bottom of the control handle, a connecting rod connected to the bottom of the connecting block, a limit wheel connected to the outer surface of the connecting rod, and a return spring connected to the outer surface of the connecting rod between the limit wheel and the connecting block.

[0008] The present invention is further configured such that: the bottom end of the connecting rod passes through the inner bottom side of the gate valve seat and is connected to a gate valve switch; the top end of the gate valve seat is connected to a support sleeve; and two positioning pins are connected in a ring shape on the outer side of the support sleeve and on the top surface of the gate valve seat.

[0009] The present invention is further configured such that: the inner sidewall of the limiting wheel is connected in an annular shape with two guide blocks; the outer surface of the connecting rod is provided with guide grooves at the corresponding positions of the sliding paths of the two guide blocks; and the top surface of the limiting wheel is connected in an annular shape with two fixing posts.

[0010] The present invention is further configured such that: the outer surfaces of the top ends of the two fixed columns are connected to support blocks, one end of each of the two support blocks is connected to an adjusting piece, and the outer surface of the limiting wheel is provided with a plurality of positioning blocks in a ring shape.

[0011] The present invention is further configured such that: a positioning groove is provided on one side of the top of each of the two positioning pins corresponding to the sliding path of the positioning block; the limiting wheel and the positioning block are connected to the control handle through a guide block, a reset spring and a connecting block.

[0012] The present invention is further configured such that: the inner diameter of the support sleeve is adapted to the outer diameter of the connecting rod; the inner diameter of the limiting wheel is adapted to the outer diameter of the connecting rod; the inner diameter of the guide groove is adapted to the sliding path of the guide block; and the inner diameter of the positioning groove is adapted to the sliding path of the positioning block.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model discloses a pipeline gate valve with self-locking protection function. Through the cooperation between the control handle, connecting rod, and return spring with the limit wheel, positioning block, and positioning column, the control end of the pipeline gate valve can achieve an effective self-locking effect, preventing the gate valve from becoming loose and failing due to accidental contact of the control handle, thereby improving the control effect of the gate valve.

[0015] This utility model discloses a pipeline gate valve with self-locking protection function. Through the cooperation between the externally set limit wheel and positioning block, positioning column and positioning groove, it can facilitate the use of the control handle, ensure that the positioning block and positioning groove are accurately engaged, achieve a stable self-locking effect, prevent self-locking failure, and provide multi-angle self-locking modes to improve the accuracy of self-locking. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this practical application;

[0017] Figure 2 This is a front view of a practical book;

[0018] Figure 3 This is a schematic diagram of the control unit in this utility model;

[0019] Figure 4 This is a practical book Figure 3 An enlarged view of A in the image.

[0020] In the diagram: 1. Pipe body; 2. Gate valve seat; 21. Support sleeve; 22. Positioning pin; 23. Positioning groove; 3. Control unit; 31. Control handle; 32. Connecting block; 33. Connecting rod; 34. Return spring; 35. Limit wheel; 36. Guide block; 37. Guide groove; 38. Fixed pin; 39. Support block; 301. Adjusting plate; 302. Positioning block; Detailed Implementation

[0021] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0022] like Figure 1-4 As shown, a pipe gate valve with self-locking protection function includes a pipe body 1, a gate valve seat 2 is provided on the outer surface of the pipe body 1, a control unit 3 is connected to the top of the gate valve seat 2, the control unit 3 includes a control handle 31, a connecting block 32 is connected to the bottom of the control handle 31, a connecting rod 33 is connected to the bottom of the connecting block 32, a limit wheel 35 is connected to the outer surface of the connecting rod 33, and a return spring 34 is connected to the outer surface of the connecting rod 33 and located between the limit wheel 35 and the connecting block 32.

[0023] like Figure 1-4 As shown, the bottom end of the connecting rod 33 passes through the inner bottom side of the gate valve seat 2 and is connected to a gate valve switch. The top end of the gate valve seat 2 is connected to a support sleeve 21. Two positioning pins 22 are connected in a ring on the outer side of the support sleeve 21 and on the top surface of the gate valve seat 2. Positioning grooves 23 are opened on one side of the top end of the two positioning pins 22 corresponding to the sliding path of the positioning block 302. The limit wheel 35 and the positioning block 302 are connected to the control handle 31 through the guide block 36, the return spring 34 and the connecting block 32. The inner diameter of the support sleeve 21 is the same as that of the connecting rod 33. The outer diameter of the connecting rod 33 is matched with that of the connecting rod 34, the inner diameter of the limiting wheel 35 is matched with that of the connecting rod 33, the inner diameter of the guide groove 37 is matched with that of the sliding path of the guide block 36, and the inner diameter of the positioning groove 23 is matched with that of the positioning block 302. It should be noted that by limiting and fixing the connecting rod 35 and multiple positioning blocks 302 with the two positioning posts 22 and the positioning groove 23, it is possible to clearly observe whether the positioning block 302 and the positioning groove 23 are accurately engaged, ensuring self-locking stability and improving the safety of the gate valve.

[0024] like Figure 2-4 As shown, the inner sidewall of the limiting wheel 35 is connected to two guide blocks 36 in a ring. The outer surface of the connecting rod 33 is provided with guide grooves 37 at the corresponding positions of the sliding paths of the two guide blocks 36. The top surface of the limiting wheel 35 is connected to two fixing posts 38 in a ring. The outer surface of the top of the two fixing posts 38 is connected to a support block 39. One end of each support block 39 is connected to an adjusting piece 301. The outer surface of the limiting wheel 35 is provided with multiple positioning blocks 302 in a ring. It should be noted that the cooperation between the return spring 34, the limiting wheel 35, the guide blocks 36, the guide grooves 37, and the control handle 31 can achieve a self-locking effect on the control handle 31 and the gate valve switch, preventing the gate valve from rotating arbitrarily during use and causing unstable gate valve control.

[0025] The working principle of this utility model is as follows: Hold the control handle 31 and push the two adjusting plates 301 upward. Through the support block 39 and the fixed column 38, the limiting wheel 35 is driven to slide upward along the outer surface of the connecting rod 33. The limiting wheel 35 squeezes the reset spring 34 along the inner wall of the guide groove 37, so that the positioning block 302 on the outer surface of the limiting wheel 35 separates from the positioning groove 23 at the top of the positioning column 22. Then rotate the control handle 31 to adjust and control the gate valve switch inside the pipe body 1.

[0026] After adjustment, the limit wheel 35 and multiple positioning blocks 302 also change angles as the control handle 31 rotates. When the adjusting plate 301 is released, the reset spring 34 drives the limit wheel 35 to reset along the guide groove 37, so that the positioning block 302 in the appropriate position slides down and engages with the positioning groove 23, thus achieving the self-locking effect of the gate valve.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A pipe gate valve with self-locking protection function, characterized in that: Includes a pipe body (1), the outer surface of which is provided with a gate valve seat (2), and the top of the gate valve seat (2) is connected to a control unit (3); The control unit (3) includes a control handle (31), a connecting block (32) is connected to the bottom of the control handle (31), a connecting rod (33) is connected to the bottom of the connecting block (32), a limit wheel (35) is connected to the outer surface of the connecting rod (33), and a return spring (34) is connected to the outer surface of the connecting rod (33) and located between the limit wheel (35) and the connecting block (32).

2. The pipe gate valve with self-locking protection function according to claim 1, characterized in that, The bottom end of the connecting rod (33) passes through the inner bottom side of the gate valve seat (2) and is connected to the gate valve switch. The top end of the gate valve seat (2) is connected to the support sleeve (21). Two positioning pins (22) are connected in a ring on the outside of the support sleeve (21) and on the top surface of the gate valve seat (2).

3. The pipe gate valve with self-locking protection function according to claim 2, characterized in that, The inner sidewall of the limiting wheel (35) is connected in a ring with two guide blocks (36). The outer surface of the connecting rod (33) and the corresponding sliding path of the two guide blocks (36) are provided with guide grooves (37). The top surface of the limiting wheel (35) is connected in a ring with two fixing posts (38).

4. The pipe gate valve with self-locking protection function according to claim 3, characterized in that, Support blocks (39) are connected to the outer surfaces of the top ends of the two fixed columns (38), and adjustment plates (301) are connected to one end of each of the two support blocks (39). Multiple positioning blocks (302) are arranged in a ring on the outer surface of the limiting wheel (35).

5. The pipe gate valve with self-locking protection function according to claim 4, characterized in that, The top side of each of the two positioning pins (22) is provided with a positioning groove (23) corresponding to the sliding path of the positioning block (302). The limiting wheel (35) and the positioning block (302) are connected to the control handle (31) through the guide block (36), the reset spring (34) and the connecting block (32).

6. A pipe gate valve with self-locking protection function according to claim 5, characterized in that, The inner diameter of the support sleeve (21) is adapted to the outer diameter of the connecting rod (33), the inner diameter of the limiting wheel (35) is adapted to the outer diameter of the connecting rod (33), the inner diameter of the guide groove (37) is adapted to the sliding path of the guide block (36), and the inner diameter of the positioning groove (23) is adapted to the sliding path of the positioning block (302).

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