Centering and clamping device for balance valve seat

Abstract

The utility model discloses a balancing valve seat centering and clamping device, which belongs to the technical field of balancing valve maintenance and comprises a contact plate, a plurality of sliding grooves are arranged on the contact plate, and sliding blocks are arranged in the sliding grooves. By arranging the first connecting rod and the second connecting rod, a worm can drive a worm gear to rotate by rotating a first knob, and when the worm gear rotates, a rotating block can be driven to rotate, so that the first connecting rod drives the second connecting rod to move, and a sliding block is driven to move in the direction of a sliding groove; therefore, all the sliding blocks are gathered towards the center together, the first clamping plate and the second clamping plate are driven to move together to clamp the valve seat, meanwhile, the spring between the first clamping plate and the second clamping plate can enable the second clamping plate to obtain a certain buffer space when clamping the irregular position of the valve seat, the clamping stability is ensured, and the clamping efficiency is improved. And the clamping device can be used for clamping valve seats with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of balancing valve maintenance, in particular to a balancing valve seat centering clamping device. Background Art

[0002] A balancing valve is a valve used to regulate the flow and pressure in a fluid system. It is commonly used in water supply, heating, air conditioning and other systems. The main function of a balancing valve is to regulate the flow in the system as needed to ensure that each branch pipe or equipment is properly supplied with fluid while maintaining the pressure balance within the system. During use, the balancing valve needs to be frequently inspected and maintained to ensure that the performance of the balancing valve is in the best condition, thereby improving the energy efficiency of the system. A well-maintained balancing valve can more accurately control the flow and pressure, reduce energy consumption, and improve the efficiency of the system. When inspecting and maintaining the balancing valve, a clamping device is required to clamp and fix the balancing valve seat to facilitate operation by the staff. The ordinary clamping device in the prior art cannot clamp valve seats of different sizes, causing inconvenience during use. At the same time, the ordinary clamping device has a large contact area with the valve seat when clamping the valve seat, which causes certain obstacles to the inspection and maintenance of the balancing valve. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the common clamping device in the prior art cannot clamp valve seats of different sizes, causing inconvenience in use. At the same time, the contact area between the common clamping device and the valve seat is large when clamping the valve seat, causing certain obstacles to the inspection and maintenance of the balancing valve.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: providing a balancing valve seat centering clamping device, including a contact plate, a plurality of slide grooves are arranged on the contact plate, and slide blocks are arranged in the slide grooves, the bottoms of the slide blocks are fixedly connected to the connecting plates, the bottom surfaces of the connecting plates are fixedly connected to connecting columns, the center position of the bottom surface of the contact plate is rotatably connected to the rotating column, a rotating block is fixedly connected to the outer wall of the rotating column, a worm gear is fixedly connected to the bottom surface of the rotating block, connecting holes are arranged at the corners of the rotating block, a first connecting rod is rotatably connected in the connecting holes, the end of the first connecting rod away from the rotating block is fixedly connected to the second connecting rod, and the end of the second connecting rod away from the first connecting rod is rotatably connected to the adjacent connecting column.

[0005] Through the above technical solution, when the worm gear rotates, it will drive the rotating column to rotate, so that the rotating column drives the rotating block to rotate, and the first connecting rod drives the second connecting rod to move. Since the second connecting rod is rotatably connected to the connecting column, when the second connecting rod moves, it will drive the slider to move along the direction of the slide groove, so that all the sliders gather toward the center together, so that the clamping device can clamp valve seats of different sizes.

[0006] The utility model is further configured that a first clamping plate is fixedly connected to the top surface of the sliding block, a plurality of springs are fixedly connected to one side of the first clamping plate close to the rotating column, and a second clamping plate is fixedly connected to one end of the spring away from the first clamping plate.

[0007] Through the above technical solution, when the slider moves, it will drive the first clamping plate and the second clamping plate to move together. When the second clamping plate contacts the valve seat, it will clamp the valve seat. In addition, since a spring is arranged between the first clamping plate and the second clamping plate, the second clamping plate can obtain a certain buffer space when clamping an irregular position, thereby ensuring the stability of clamping.

[0008] The utility model is further configured as follows: a frame is fixedly connected to the outer side of the contact plate, a shell is fixedly connected to the bottom surface of the frame, a rotating shaft is rotatably connected to the inner wall on either side of the shell, the other end of the rotating shaft passes through the shell, a worm is provided at a position of the shell near the worm gear, the worm is meshingly connected to the worm gear, and a first knob is fixedly connected to one end of the rotating shaft passing through the shell.

[0009] Through the above technical solution, rotating the first knob can drive the rotating shaft to rotate, thereby causing the worm on the rotating shaft to rotate together, and the worm drives the worm wheel to rotate, thereby realizing manual clamping control of the valve seat.

[0010] The utility model is further configured that a sleeve is fixedly connected to any one side of the top surface of the frame, a second knob is rotatably connected to the top surface of the sleeve, and a thread is arranged on the inner side of the second knob.

[0011] The utility model is further configured as follows: a threaded rod is provided on the inner side of the sleeve, the threaded rod is threadedly connected to the second knob, a pressure plate is fixedly connected to the top surface of the threaded rod, a reserved hole is provided at one end of the pressure plate away from the threaded rod, a guide column is fixedly connected to the side of the top surface of the frame away from the sleeve, and the guide column is provided in the reserved hole.

[0012] Through the above technical solution, turning the second knob will cause the threaded rod to move along the direction of the sleeve, thereby causing the threaded rod to drive the pressure plate to move along the direction of the guide column, so that the pressure plate can further fix and limit the valve seat in the clamped state, thereby effectively improving the stability of the valve seat clamping.

[0013] The utility model is further configured that a bottom plate is fixedly connected to the bottom surface of the shell.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model sets a first connecting rod and a second connection, and rotating the first knob can drive the rotating shaft to rotate, thereby making the worm on the rotating shaft rotate together, so that the worm drives the worm wheel to rotate, and when the worm wheel rotates, it will drive the rotating column to rotate, so that the rotating column drives the rotating block to rotate, so that the first connecting rod drives the second connecting rod to move. Since the second connecting rod is rotatably connected to the connecting column, when the second connecting rod moves, it will drive the slide block to move along the direction of the slide groove, so that all the slide blocks gather toward the center together, and drive the first clamping plate and the second clamping plate to move together. When the second clamping plate contacts the valve seat, it will clamp the valve seat, and since a spring is set between the first clamping plate and the second clamping plate, the second clamping plate can obtain a certain buffer space when clamping the irregular position of the valve seat, thereby ensuring the stability of the clamping, so that the clamping device can clamp valve seats of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the first partial structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the second partial structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the third partial structure of the utility model.

[0020] In the figure: 1. contact plate; 2. slide groove; 3. slider; 4. connecting plate; 5. connecting column; 6. rotating column; 7. rotating block; 8. connecting hole; 9. first connecting rod; 10. second connecting rod; 11. worm gear; 12. rotating shaft; 13. worm; 14. first knob; 15. first clamping plate; 16. spring; 17. second clamping plate; 18. frame; 19. sleeve; 20. threaded rod; 21. second knob; 22. pressure plate; 23. reserved hole; 24. guide column; 25. housing; 26. bottom plate. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] See also Figures 1 to 4 , a centering clamping device for a balancing valve seat comprises a contact plate 1, a plurality of slide grooves 2 are arranged on the contact plate 1, slide grooves 2 are arranged in each slide groove 3, the bottom of each slide groove 3 is fixedly connected to a connecting plate 4, the bottom surface of each connecting plate 4 is fixedly connected to a connecting column 5, a rotating column 6 is rotatably connected to the center position of the bottom surface of the contact plate 1, a rotating block 7 is fixedly connected to the outer wall of the rotating column 6, a worm gear 11 is fixedly connected to the bottom surface of the rotating block 7, connecting holes 8 are arranged at the corners of the rotating block 7, a first connecting rod 9 is rotatably connected in each connecting hole 8, an end of the first connecting rod 9 away from the rotating block 7 is fixedly connected to a second connecting rod 10, and an end of the second connecting rod 10 away from the first connecting rod 9 is rotatably connected to the adjacent connecting column 5;

[0023] A frame 18 is fixedly connected to the outer side of the contact plate 1, a housing 25 is fixedly connected to the bottom surface of the frame 18, a bottom plate 26 is fixedly connected to the bottom surface of the housing 25, a rotating shaft 12 is rotatably connected to the inner wall on either side of the housing 25, the other end of the rotating shaft 12 passes through the housing 25, a worm 13 is provided at a position of the housing 25 close to the worm gear 11, the worm 13 is meshed and connected with the worm gear 11, one end of the rotating shaft 12 passing through the housing 25 is fixedly connected to the first knob 14, a first clamping plate 15 is fixedly connected to the top surface of the slider 3, a plurality of springs 16 are fixedly connected to the side of the first clamping plate 15 close to the rotating column 6, and a second clamping plate 17 is fixedly connected to the end of the spring 16 away from the first clamping plate 15;

[0024] A threaded rod 20 is provided on the inner side of the sleeve 19, and the threaded rod 20 is threadedly connected to the second knob 21. A pressure plate 22 is fixedly connected to the top surface of the threaded rod 20, and a reserved hole 23 is provided at the end of the pressure plate 22 away from the threaded rod 20. A guide column 24 is fixedly connected to the side of the top surface of the frame 18 away from the sleeve 19, and the guide column 24 is arranged in the reserved hole 23. The sleeve 19 is fixedly connected to any side of the top surface of the frame 18, and the second knob 21 is rotatably connected to the top surface of the sleeve 19, and a thread is provided on the inner side of the second knob 21.

[0025] When the utility model is in use, the valve seat of the balancing valve is firstly arranged between the second clamping plates 17, and then the first knob 14 is rotated to drive the rotating shaft 12 to rotate, so that the worm 13 on the rotating shaft 12 rotates together, so that the worm 13 drives the worm wheel 11 to rotate, and when the worm wheel 11 rotates, it drives the rotating column 6 to rotate, so that the rotating column 6 drives the rotating block 7 to rotate, so that the first connecting rod 9 drives the second connecting rod 10 to move, and since the second connecting rod 10 is rotatably connected to the connecting column 5, when the second connecting rod 10 moves, it drives the slider 3 to move along the direction of the slide groove 2, so that all the sliders 3 are moved together. The two clamps 15 and 17 converge in the same direction and drive the first clamping plate 15 and the second clamping plate 17 to move together. When the second clamping plate 17 contacts the valve seat, the valve seat will be clamped. Since a spring 16 is provided between the first clamping plate 15 and the second clamping plate 17, the second clamping plate 17 can obtain a certain buffer space when clamping the irregular position of the valve seat. Then, the second knob 21 is turned to move the threaded rod 20 along the direction of the sleeve 19, so that the threaded rod 20 drives the pressure plate 22 to move along the direction of the guide column 24, so that the pressure plate 22 further fixes and limits the valve seat in the clamped state, so that the stability of the balanced valve seat clamping is effectively improved.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A centering clamping device for a balancing valve seat, comprising a contact plate (1), characterized in that: The contact plate (1) is provided with a plurality of slide grooves (2), each of which is provided with a slider (3), the bottom of each of which is fixedly connected to a connecting plate (4), the bottom of each of which is fixedly connected to a connecting column (5), the center of the bottom of the contact plate (1) is rotatably connected to a rotating column (6), the outer wall of the rotating column (6) is fixedly connected to a rotating block (7), the bottom of the rotating block (7) is fixedly connected to a worm gear (11), the corners of the rotating block (7) are provided with connecting holes (8), the connecting holes (8) are rotatably connected to a first connecting rod (9), the end of the first connecting rod (9) away from the rotating block (7) is fixedly connected to a second connecting rod (10), and the end of the second connecting rod (10) away from the first connecting rod (9) is rotatably connected to a connecting column (5) close to the first connecting rod (5).

2. The balancing valve seat centering clamping device according to claim 1 is characterized in that: A first clamping plate (15) is fixedly connected to the top surface of the slider (3); a plurality of springs (16) are fixedly connected to one side of the first clamping plate (15) close to the rotating column (6); and a second clamping plate (17) is fixedly connected to one end of the spring (16) away from the first clamping plate (15).

3. The balancing valve seat centering clamping device according to claim 1 is characterized in that: The outer side of the contact plate (1) is fixedly connected to a frame (18), the bottom surface of the frame (18) is fixedly connected to a housing (25), an inner wall on any side of the housing (25) is rotatably connected to a rotating shaft (12), the other end of the rotating shaft (12) passes through the housing (25), a worm (13) is provided at a position of the housing (25) close to the worm wheel (11), the worm (13) is meshingly connected to the worm wheel (11), and one end of the rotating shaft (12) passing through the housing (25) is fixedly connected to a first knob (14).

4. The balancing valve seat centering clamping device according to claim 3 is characterized in that: A sleeve (19) is fixedly connected to any one side of the top surface of the frame (18), a second knob (21) is rotatably connected to the top surface of the sleeve (19), and a thread is provided on the inner side of the second knob (21).

5. The balancing valve seat centering clamping device according to claim 4 is characterized in that: A threaded rod (20) is arranged on the inner side of the sleeve (19), the threaded rod (20) being threadedly connected to the second knob (21), a pressing plate (22) being fixedly connected to the top surface of the threaded rod (20), a reserved hole (23) being arranged at one end of the pressing plate (22) away from the threaded rod (20), and a guide column (24) being fixedly connected to one side of the top surface of the frame (18) away from the sleeve (19), the guide column (24) being arranged in the reserved hole (23).

6. The balancing valve seat centering clamping device according to claim 3 is characterized in that: A bottom plate (26) is fixedly connected to the bottom surface of the housing (25).

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