A ball valve with a rotation limiting structure

Abstract

The utility model discloses a ball valve with a rotation limiting structure, and relates to the technical field of ball valves. The utility model includes a pipeline and flanges fixedly installed on the left and right sides of the pipeline respectively, and a limiting mechanism and a fixing mechanism are arranged on the pipeline. The limiting mechanism includes a connecting pipe fixedly installed on the outer wall of the pipeline, and the connecting pipe is communicated with the pipeline. A support frame 1 is arranged on the top of the connecting pipe, and two threaded rods 1 are threadedly installed on the connecting pipe and the support frame 1, and two nuts are threadedly installed on the two threaded rods 1 respectively, and the corresponding two nuts are in contact with the connecting pipe and the support frame 1 on their respective sides close to each other. The utility model sets a limiting mechanism, and firstly, high-pressure gas is delivered to the installation box 2 through the delivery pipe, and the gas will push the piston, push rod and push block in the installation box to move to the right, and at the same time, the push block is driven by the rotation of the two connecting rods during the movement.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and particularly relates to a ball valve with a rotation limiting structure. Background Art

[0002] In the related technology, a ball valve with a rotation limit structure is disclosed with publication number CN220185974U, including a ball valve body and a valve shaft, and also including an auxiliary rotation mechanism. The auxiliary rotation mechanism includes an arc connecting plate, a clamping head, a hoop ring, an arc connecting groove, a head groove, an edge connecting block, a slot, an insert block and a handle. The shell of the ball valve body is connected to an electric actuator through the valve shaft to the outer axis, and an auxiliary rotation mechanism is arranged outside the valve shaft of the ball valve body as an auxiliary rotation structure of the ball valve. The auxiliary rotation mechanism can manually operate the valve shaft to rotate, so that the valve shaft can normally open the valve disc of the ball valve body after blockage under the action of external force.

[0003] During the use of the device, if the positioning device does not limit the rotation angle of the ball valve, the ball valve will cause excessive rotation or misalignment, thereby damaging the pipeline or related equipment. At the same time, the failure to limit the angle of the ball valve will also lead to inaccurate operation, making it difficult for the operator to accurately control the position of the ball valve, thereby affecting the normal operation of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a ball valve with a rotation limiting structure, which solves the problem that if the rotation angle of the ball valve is not limited by a positioning device, the ball valve will be over-rotated or misaligned, thereby damaging the pipeline or related equipment. At the same time, if the angle of the ball valve is not limited, it will also cause inaccurate operation, making it difficult for the operator to accurately control the position of the ball valve, thereby affecting the normal operation of the equipment.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a ball valve with a rotation limiting structure, comprising a pipeline and flanges respectively fixedly installed on the left and right sides of the pipeline, wherein a limiting mechanism and a fixing mechanism are arranged on the pipeline;

[0007] The limiting mechanism includes a connecting pipe fixedly installed on the outer wall of the pipeline, the connecting pipe is communicated with the pipeline, a support frame 1 is arranged on the top of the connecting pipe, two threaded rods 1 are threadedly installed on the connecting pipe and the support frame 1, two nuts are respectively threadedly installed on the two threaded rods 1, and the corresponding two nuts are respectively in contact with the connecting pipe and the support frame 1 on their respective sides close to each other.

[0008] Furthermore, an installation box 1 is fixedly installed on the top of the support frame 1, and a support frame 2 is fixedly installed on the top of the installation box 1. A rotating rod is rotatably installed in the pipeline. The rotating rods all penetrate the connecting pipe, support frame 1, installation box 1 and support frame 2 and are rotatably connected with the connecting pipe, support frame 1, installation box 1 and support frame 2. A ball valve is fixedly installed on the bottom end of the rotating rod, and the outer wall of the ball valve is adapted to the pipeline. A hand pan is fixedly installed on the top of the rotating rod.

[0009] Furthermore, an installation box 2 is fixedly installed on the left side of the installation box 1, a delivery pipe is fixedly installed on the left side of the installation box 2, a piston is slidably installed in the installation box 2, and a push rod is fixedly installed on the right side of the piston.

[0010] Furthermore, the push rods all pass through the installation box one and the installation box two and are slidably connected with the installation box one and the installation box two. A push block is fixedly installed on the left end of the push rod, and a sleeve block is fixedly sleeved on the outer wall of the rotating rod.

[0011] Furthermore, two round rods 1 are fixedly mounted on the sleeve block, and connecting rods are rotatably sleeved on the outer walls of the two round rods 1, and the two connecting rods are rotatably connected to the push block.

[0012] Furthermore, a limiting hole 1 is opened on the left side of the push block, a limiting rod is threadedly installed on the left side of the installation box 1, the limiting rod is adapted to the limiting hole 1, the left end of the limiting rod extends outside the installation box 1, and a turntable is fixedly installed on the left end of the limiting rod.

[0013] Furthermore, the fixing mechanism includes two limiting holes opened on the outer wall of the rotating rod, a fixing block is fixedly installed on the top of the installation box one, a round rod two is slidably installed on the fixing block, the round rod two is adapted to the limiting hole two, and a disc is fixedly sleeved on the outer wall of the round rod two.

[0014] Furthermore, a spring is wound on the outer wall of the second round rod, and ends of the spring that are away from each other are fixedly connected to the fixed block and the disc respectively, and a handle is fixedly installed on the right end of the second round rod.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model sets a limit mechanism. First, high-pressure gas is delivered to the second installation box through the delivery pipe. The gas pushes the piston, push rod and push block in the installation box to move to the right. At the same time, the push block drives the rotating rod to rotate through the rotation of the two connecting rods during the movement. The rotation of the rotating rod causes the ball valve to rotate in the pipeline to open or close the pipeline. When the rotation angle of the ball valve needs to be limited, the turntable can be rotated. The rotation of the turntable will make the limit rod approach the limit hole 1 on the push block, thereby limiting the rotation angle of the rotating rod driven by the push block. The limit rod limits the push block, which is conducive to ensuring that the ball valve does not exceed a specific angle range when rotating, thereby avoiding damage to the pipeline or related equipment, and the position of the ball valve can be accurately controlled to meet specific engineering needs.

[0017] (2) The utility model sets a fixing mechanism. When the rotating rod needs to be fixed, the operator pulls the handle outward to transfer force to the second round rod, so that the second round rod compresses the spring through the cooperation of the fixing block and the disc. Then the operator matches the second round rod with the second limiting hole on the rotating rod. After matching, the operator releases the handle, and the restoring force of the spring pushes the second round rod to pass through the second limiting hole, thereby limiting the rotating rod and keeping it fixed.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a structural schematic diagram of a ball valve with a rotation limiting structure of the utility model;

[0021] Figure 2 This is a front cross-sectional structural schematic diagram of a ball valve with a rotation limiting structure of the utility model;

[0022] Figure 3 This is a front cross-sectional structural schematic diagram of a ball valve with a rotation limiting structure of the utility model;

[0023] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0024] Figure 5 For this utility model Figure 1Schematic diagram of the enlarged structure of B.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Pipeline; 2. Flange; 3. Connecting pipe; 4. Support frame 1; 5. Threaded rod 1; 6. Nut; 7. Installation box 1; 8. Support frame 2; 9. Turntable; 10. Ball valve; 11. Hand plate; 12. Installation box 2; 13. Delivery pipe; 14. Piston; 15. Push rod; 16. Push block; 17. Sleeve block; 18. Round rod 1; 19. Connecting rod; 20. Limit hole 1; 21. Limit rod; 22. Turntable; 23. Limit hole 2; 24. Fixed block; 25. Round rod 2; 26. Disc; 27. Spring; 28. Handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 As shown, the utility model is a ball valve with a rotation limiting structure, comprising a pipeline 1 and flanges 2 respectively fixedly mounted on the left and right sides of the pipeline 1, and a limiting mechanism and a fixing mechanism are arranged on the pipeline 1;

[0029] The limiting mechanism includes a connecting pipe 3 fixedly installed on the outer wall of the pipeline 1, the connecting pipe 3 is communicated with the pipeline 1, a support frame 4 is arranged on the top of the connecting pipe 3, two threaded rods 5 are threadedly installed on the connecting pipe 3 and the support frame 4, two nuts 6 are respectively threadedly installed on the two threaded rods 5, and the corresponding two nuts 6 are in contact with the connecting pipe 3 and the support frame 4 on their sides close to each other.

[0030] Among them Figure 2 As shown, a mounting box 17 is fixedly installed on the top of the support frame 4, a support frame 2 8 is fixedly installed on the top of the mounting box 7, a rotating rod 9 is rotatably installed in the pipeline 1, the rotating rods 9 all penetrate the connecting pipe 3, the support frame 14, the mounting box 17 and the support frame 28 and are rotatably connected with the connecting pipe 3, the support frame 14, the mounting box 17 and the support frame 28, a ball valve 10 is fixedly installed on the bottom end of the rotating rod 9, the outer wall of the ball valve 10 is adapted to the pipeline 1, and a hand plate 11 is fixedly installed on the top of the rotating rod 9.

[0031] Operating the ball valve 10 by turning the hand plate 11 can improve the operating efficiency and flexibility of the pipeline system, ensuring that the pipeline system can meet actual work requirements.

[0032] Among them Figure 2 As shown, the left side of the installation box 1 7 is fixedly installed with the installation box 2 12 , the left side of the installation box 2 12 is fixedly installed with the delivery pipe 13 , the inside of the installation box 2 12 is slidably installed with a piston 14 , and the right side of the piston 14 is fixedly installed with a push rod 15 .

[0033] Filling gas into the installation box 12 through the delivery pipe 13 to push the piston 14 can achieve multiple benefits such as power transmission, precise control, pollution-free, renewable energy, safety and flexibility.

[0034] Among them Figure 4 As shown, the push rods 15 penetrate the installation box 1 7 and the installation box 2 12 and are slidably connected to the installation box 1 7 and the installation box 2 12. A push block 16 is fixedly installed on the left end of the push rod 15, and a sleeve block 17 is fixedly sleeved on the outer wall of the rotating rod 9.

[0035] By driving the push rod 15 to move through the movement of the piston 14, various operation purposes can be achieved, including push-pull operation, compression operation, transmission operation, stirring operation, positioning operation and die-casting operation.

[0036] Among them Figure 4 As shown, two round rods 18 are fixedly mounted on the sleeve block 17 , and connecting rods 19 are rotatably sleeved on the outer walls of the two round rods 18 , respectively, and the two connecting rods 19 are rotatably connected to the push block 16 .

[0037] The rotating connecting rod 19 can transfer power to the push block 16 by transmitting force, thereby pushing or pulling the rotating rod 9, driving related mechanical devices or performing mechanical operations.

[0038] Among them Figure 5 As shown, a limiting hole 20 is provided on the left side of the push block 16, and a limiting rod 21 is threadedly installed on the left side of the installation box 7. The limiting rod 21 is adapted to the limiting hole 20, and the left end of the limiting rod 21 extends to the outside of the installation box 7, and a turntable 22 is fixedly installed on the left end of the limiting rod 21.

[0039] The limiting rod 21 limits the push block 16, which helps to ensure that the ball valve 10 does not exceed a specific angle range when rotating, thereby avoiding damage to the pipeline 1 or related equipment, and can accurately control the position of the ball valve 10 to meet specific engineering requirements.

[0040] Among them Figure 5 As shown, the fixing mechanism includes a second limiting hole 23 opened on the outer wall of the rotating rod 9, a fixing block 24 is fixedly installed on the top of the installation box 7, a round rod 25 is slidably installed on the fixing block 24, the round rod 25 is adapted to the second limiting hole 23, and a disc 26 is fixedly sleeved on the outer wall of the round rod 25.

[0041] By matching the movable rotating rod 9 with the second limiting hole 23, position control, safety, stability, automatic control, and convenient adjustment and maintenance can be achieved, thereby improving the efficiency and reliability of the system.

[0042] Among them Figure 5 As shown, a spring 27 is wound on the outer wall of the second round rod 25 , and the ends of the spring 27 that are away from each other are fixedly connected to the fixing block 24 and the disc 26 respectively, and a handle 28 is fixedly installed on the right end of the second round rod 25 .

[0043] By pushing the rotating rod 9 to limit the second limiting hole 23 through the spring 27, the benefits of precise control, simplified design, rapid response, automated operation, energy saving and environmental protection can be achieved, thereby improving the efficiency and reliability of the system.

[0044] A specific application of this embodiment is as follows: first, high-pressure gas is delivered to the installation box 12 through the delivery pipe 13, and the gas pushes the piston 14, the push rod 15 and the push block 16 in the installation box to move to the right. At the same time, the push block 16 drives the rotating rod 9 to rotate through the rotation of the two connecting rods 19 during the movement. The rotation of the rotating rod causes the ball valve 10 to rotate in the pipeline 1 to open or close the pipeline. When it is necessary to limit the rotation angle of the ball valve, the turntable 22 can be rotated. The rotation of the turntable will make the limiting rod 21 close to the limiting hole 20 on the push block, thereby limiting the rotation angle of the rotating rod 9 driven by the push block 16. The limiting of the push block 16 by the limiting rod 21 is conducive to ensuring that the ball valve 10 does not exceed a specific angle range during rotation, thereby avoiding damage to the pipeline 1 or related equipment, and the position of the ball valve 10 can be accurately controlled to meet specific The engineering requirements of the body; during the opening process of the ball valve 10, the rotation of the ball valve can also be achieved by turning the hand plate 11. By turning the hand plate 11, the rotating rod 9, the sleeve block 17 and the ball valve 10 can be driven to rotate together, and when the sleeve block 17 rotates, it is connected with the two connecting rods 19, so that the piston 14 on the push rod 15 can cooperate with the rotating rod 9 to drive the ball valve 10 to rotate, thereby opening the pipeline. When the rotating rod 9 needs to be fixed, the operator pulls the handle 28 outward to transfer the force to the round rod 25, so that the round rod 25 will compress the spring 27 through the cooperation of the fixing block 24 and the disc 26. Then the operator matches the round rod 25 with the limiting hole 23 on the rotating rod 9. After matching, the handle 28 is released, and the restoring force of the spring 27 pushes the round rod 25 to penetrate the limiting hole 23, thereby limiting the rotating rod 9 and keeping it fixed.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A ball valve with a rotation limiting structure, comprising a pipeline (1) and flanges (2) respectively fixedly mounted on the left and right sides of the pipeline (1), characterized in that: The pipeline (1) is provided with a limiting mechanism and a fixing mechanism; The limiting mechanism comprises a connecting pipe (3) fixedly mounted on the outer wall of the pipeline (1), the connecting pipe (3) being in communication with the pipeline (1), a supporting frame (4) being arranged on the top of the connecting pipe (3), two threaded rods (5) being threadedly mounted on the connecting pipe (3) and the supporting frame (4), two nuts (6) being threadedly mounted on the two threaded rods (5), respectively, and the two corresponding nuts (6) being in contact with the connecting pipe (3) and the supporting frame (4) at their respective sides close to each other.

2. A ball valve with a rotation limiting structure according to claim 1, characterized in that: The top of the support frame 1 (4) is fixedly mounted with an installation box 1 (7), the top of the installation box 1 (7) is fixedly mounted with a support frame 2 (8), a rotating rod (9) is rotatably mounted in the pipeline (1), the rotating rod (9) passes through the connecting pipe (3), the support frame 1 (4), the installation box 1 (7) and the support frame 2 (8) and is rotatably connected to the connecting pipe (3), the support frame 1 (4), the installation box 1 (7) and the support frame 2 (8), a ball valve (10) is fixedly mounted on the bottom end of the rotating rod (9), the outer wall of the ball valve (10) is adapted to the pipeline (1), and a hand plate (11) is fixedly mounted on the top of the rotating rod (9).

3. A ball valve with a rotation limiting structure according to claim 2, characterized in that: The left side of the installation box 1 (7) is fixedly installed with the installation box 2 (12), the left side of the installation box 2 (12) is fixedly installed with a delivery pipe (13), a piston (14) is slidably installed in the installation box 2 (12), and the right side of the piston (14) is fixedly installed with a push rod (15).

4. A ball valve with a rotation limiting structure according to claim 3, characterized in that: The push rods (15) penetrate the installation box one (7) and the installation box two (12) and are slidably connected to the installation box one (7) and the installation box two (12). A push block (16) is fixedly installed on the left end of the push rod (15), and a sleeve block (17) is fixedly sleeved on the outer wall of the rotating rod (9).

5. The ball valve with a rotation limiting structure according to claim 4, characterized in that: Two round rods (18) are fixedly mounted on the sleeve block (17), and connecting rods (19) are rotatably sleeved on the outer walls of the two round rods (18), and the two connecting rods (19) are rotatably connected to the push block (16).

6. A ball valve with a rotation limiting structure according to claim 5, characterized in that: A limiting hole (20) is provided on the left side of the push block (16); a limiting rod (21) is threadedly installed on the left side of the installation box (7); the limiting rod (21) is matched with the limiting hole (20); the left end of the limiting rod (21) extends outside the installation box (7); and a rotating disk (22) is fixedly installed on the left end of the limiting rod (21).

7. The ball valve with a rotation limiting structure according to claim 6, characterized in that: The fixing mechanism comprises a second limiting hole (23) formed on the outer wall of the rotating rod (9); a fixing block (24) is fixedly mounted on the top of the first installation box (7); a second round rod (25) is slidably mounted on the fixing block (24); the second round rod (25) is matched with the second limiting hole (23); and a disc (26) is fixedly sleeved on the outer wall of the second round rod (25).

8. The ball valve with a rotation limiting structure according to claim 7, characterized in that: A spring (27) is wound on the outer wall of the second round rod (25), and the ends of the spring (27) that are away from each other are fixedly connected to the fixed block (24) and the disc (26) respectively, and a handle (28) is fixedly installed on the right end of the second round rod (25).

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