Throttle valve with protective structure

Abstract

The utility model discloses a throttle valve with a protective structure, which relates to the field of corrugated paper trays, and is characterized by comprising a valve body and a valve rod rotatably connected to the top of the valve body, the head of the valve rod is fixedly connected with a handle A, two sides of the valve body are fixed with guide rails A through support plates A, the guide rails A are connected with sliding blocks A in a sliding manner, and the sliding blocks A are fixedly connected with the valve rod. The side ends of the sliding blocks A are connected with the protective shells through connecting plates A. Iron attraction blocks are fixedly connected to the inner surfaces of the protective shells. When the two protective shells move towards the middle and are tightly attached to each other, the sliding blocks A also reach the outermost sides of the guide rails A, at the moment, the two iron attraction blocks are tightly attached to each other to generate attraction force, and the two protective shells are fixed together. And meanwhile, the valve rod and the handle A are wrapped by an integral structure formed by the two protective shells, so that the corresponding parts of the throttle valve can be protected, the two protective shells can move only by pushing one protective shell, and the operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the field of throttle valves, and more specifically, to a throttle valve with a protective structure. Background Art

[0002] A throttle valve is a valve used to control fluid flow. It controls the flow by changing the cross-section of the internal fluid channel or the throttling length. As an important component of the throttle valve, the valve stem connects the valve disc and the handle, so that the operator can adjust the position of the valve stem by rotating the handle, thereby changing the valve opening to achieve the purpose of controlling the flow.

[0003] The design of a throttle valve usually includes a handle or a grip, which is connected to the valve stem. The two protrude from the valve body, and the protruding volume is relatively large. If the throttle valve is under construction, this part is easily hit. If the impact is severe, the connecting part of the valve stem may be deformed, affecting the sealing performance. At the same time, the valve stem may become stuck and unable to rotate. However, the throttle valve in the prior art does not have a protective structure here.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a throttle valve with a protective structure. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a throttle valve with a protective structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a throttle valve with a protective structure, comprising a valve body, and a valve stem rotatably connected to the top of the valve body, the head of the valve stem is fixedly connected to a handle A, both sides of the valve body are fixed to a guide rail A through a support plate A, and sliders A are slidably connected to the guide rails A, and the side ends of the sliders A are connected to the protective shell through a connecting plate A, and magnetic blocks are fixedly connected to the inner surfaces of the protective shells. When the two protective shells move toward the middle part and press against each other, the sliders A also reach the outermost side of the guide rail A. At this time, the two magnetic blocks press against each other to generate an attractive force, fixing the two protective shells together, and at the same time, the valve stem and the handle A are wrapped by the overall structure formed by the two protective shells, and a synchronization mechanism is installed between the protective shells to maintain the synchronous operation of the protective shells.

[0007] Preferably, the synchronization mechanism includes a support plate B fixed on the back, and the top of the support plate B is fixedly connected to a square shell, and the square shell is open at the position facing the protective shell, and the inner middle part of the square shell is rotatably connected to a gear through a bearing, and the upper and lower sides of the square shell are slidably connected to a tooth plate connected to the outer wall of the gear, and the surface of the tooth plate is fixed to the protective shell through the connecting plate B.

[0008] Preferably, guide rails B for the sliding block B to slide are fixedly connected to the upper and lower sides of the square shell, and the sliding block B is respectively fixed to the tooth plate, so that the operation of the tooth plate is more stable.

[0009] Preferably, the connection plate A is detachably connected to the protective shell, and the protective shell can be replaced when it is damaged.

[0010] Preferably, the top of the connecting plate A is fixedly connected with a mounting block, the back of the protective shell is fixedly connected with a lower opening slot seat, the top of the mounting block is fixedly connected with a screw, the top of the lower opening slot seat is provided with a through hole for the screw to pass through, and a nut is threadedly connected on the outer side wall of the screw to realize quick disassembly and assembly of the protective shell.

[0011] Preferably, a tempered glass observation window is provided on the surface of the protective shell, and the staff can check the status of the handle A through the transparent tempered glass.

[0012] Preferably, a handle B is fixedly connected to the surface of the protective shell above the tempered glass observation window, and the handle B facilitates the staff to push the protective shell to move.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. According to the utility model, when the two protective shells move toward the middle part and are pressed against each other, the slider A also reaches the outermost side of the guide rail A. A synchronization mechanism is installed between the protective shells to maintain the synchronous operation of the protective shells. When one of the protective shells is pushed to move toward the middle part, the other protective shell will also move toward the middle part at the same time under the influence of the synchronization mechanism. Finally, the two protective shells are pressed against each other, and the slider A also moves to the outermost side of the guide rail A. At this time, the two magnetic blocks are pressed against each other to generate attraction, which fixes the two protective shells together. At the same time, the valve stem and the handle A are wrapped by the overall structure formed by the two protective shells, thereby protecting the valve stem and the handle A. Moreover, only one protective shell needs to be pushed to realize the movement of the two protective shells. The operation is convenient, and the problem of no protective structure in the background technology can be effectively solved.

[0015] 2. The connection plate A and the protective shell in the utility model are detachably connected, and the corresponding structure makes the disassembly and assembly very simple, so that when the protective shell is damaged, it is convenient to replace the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the square shell in the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the connection between the mounting block and the lower opening slot seat in the utility model.

[0021] In the figure: 1. valve body; 2. valve stem; 3. handle A; 4. support plate A; 5. guide rail A; 6. slider A; 7. connecting plate A; 8. protective shell; 9. magnetic block; 10. synchronization mechanism; 1001. support plate B; 1002. square shell; 1003. gear; 1004. guide rail B; 1005. slider B; 1006. tooth plate; 1007. connecting plate B; 11. tempered glass observation window; 12. handle B; 13. mounting block; 14. lower opening slot seat; 15. screw; 16. through hole; 17. nut. DETAILED DESCRIPTION

[0022] like Figure 1-4 As shown, the utility model provides a throttle valve with a protective structure, including a valve body 1, and a valve stem 2 rotatably connected to the top of the valve body 1, a handle A3 is fixedly connected to the head of the valve stem 2, both sides of the valve body 1 are fixed to the guide rail A5 through a support plate A4, sliders A6 are slidably connected to the guide rail A5, the side ends of the sliders A6 are connected to the protective shell 8 through a connecting plate A7, and the inner surface of the protective shell 8 is fixedly connected with an iron magnet 9. When the two protective shells 8 move toward the middle part and are close to each other, the slider A6 also reaches the outermost side of the guide rail A5, and a synchronization mechanism 10 is installed between the protective shells 8 to maintain the synchronous operation of the protective shells 8 and push one of the protective shells 8 to the middle part. Move, the other protective shell 8 will also move to the middle part at the same time under the influence of the synchronization mechanism 10, and finally the two protective shells 8 are pressed against each other, and the slider A6 also moves to the outermost side of the guide rail A5. At this time, the two magnetic blocks 9 are pressed against each other to generate attraction, fixing the two protective shells 8 together. At the same time, the valve stem 2 and the handle A3 are wrapped by the overall structure formed by the two protective shells 8, so as to protect the valve stem 2 and the handle A3. Pull one protective shell 8B to a position away from the handle A3 with force. Under the influence of the synchronization mechanism 10, the other protective shell 8 will also move to the other side, thereby opening the handle A3 area, and the staff can turn the handle A3 to control the throttle valve.

[0023] Furthermore, a tempered glass observation window 11 is provided on the surface of the protective shell 8. As the name suggests, the tempered glass observation window 11 is made of tempered glass. The staff can check the status of the handle A3 through the transparent tempered glass. The surface of the protective shell 8 is located above the tempered glass observation window 11 and is fixedly connected with a handle B12, which facilitates the staff to push the protective shell 8 to move.

[0024] The following is the specific structure of the synchronization mechanism 10: the synchronization mechanism 10 includes a support plate B1001 fixed on the back, and the top of the support plate B1001 is fixedly connected to a square shell 1002, and the square shell 1002 is open at the position facing the protective shell 8, the inner middle part of the square shell 1002 is rotatably connected to a gear 1003 through a bearing, and the upper and lower sides of the square shell 1002 are slidably connected to a tooth plate 1006 connected to the outer wall of the gear 1003, and the surface of the tooth plate 1006 is fixed to the protective shell 8 through a connecting plate B1007, and the upper and lower sides of the square shell 1002 are fixedly connected to a guide rail B1004 for sliding the slider B1005, And the sliders B1005 are respectively fixed to the tooth plates 1006, that is, when pushing a protective shell 8 to move, the protective plate drives the movement of a tooth plate 1006 through the connecting plate B1007, and the tooth plate 1006 drives the rotation of the gear 1003, and the gear 1003 drives the movement of another tooth plate 1006, and finally drives the movement of another protective shell 8, so that the two protective shells 8 are operated synchronously, so that only one protective shell 8 needs to be pushed to realize the movement of the two protective shells 8 (one protective shell 8 moves to the middle part or to a position away from the handle A3, and the other protective shell 8 also moves to the middle part or to a position away from the handle A3), the operation is more convenient, and the tooth plate 1006 will drive the movement of the slider B1005 when moving, and the slider B1005 slides linearly along the guide rail B1004, so that the movement of the tooth plate 1006 is more stable.

[0025] The connecting plate A7 and the protective shell 8 are detachably connected, so that when the protective shell 8 is damaged, it can be replaced. The following is the specific detachable structure: the top of the connecting plate A7 is fixedly connected to a mounting block 13, the back of the protective shell 8 is fixedly connected to a lower opening slot seat 14, the top of the mounting block 13 is fixedly connected to a screw 15, the top of the lower opening slot seat 14 is provided with a through hole 16 for the screw 15 to pass through, and a nut 17 is threadedly connected to the outer wall of the screw 15.

[0026] That is, the lower opening groove seat 14 on the protective shell 8 is inserted into the mounting block 13. After the insertion is completed, the screw 15 on the mounting block 13 just passes through the through hole 16 on the lower opening groove seat 14. Then, the nut 17 is rotated clockwise to install the nut 17 on the screw 15. The nut 17 moves downward along the screw 15 and slowly presses against the top of the lower opening groove seat 14, so that the protective shell 8 can be fixed on the connecting plate A7. Similarly, the nut 17 is rotated counterclockwise to remove the nut 17, and then the lower opening groove seat 14 is pulled off from the mounting block 13, so that the protective shell 8 can be disassembled. The disassembly and assembly are very simple, and the protective shell 8 is easy to replace.

[0027] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A throttle valve with a protective structure, comprising a valve body (1), and a valve stem (2) rotatably connected to the top of the valve body (1), wherein the head of the valve stem (2) is fixedly connected to a handle A (3), characterized in that: Both sides of the valve body (1) are fixed to the guide rail A (5) via a support plate A (4); a slider A (6) is slidably connected to the guide rail A (5); the side ends of the slider A (6) are connected to the protective shell (8) via a connecting plate A (7); an iron magnet (9) is fixedly connected to the inner surface of the protective shell (8); when the two protective shells (8) move toward the middle and are pressed against each other, the slider A (6) also reaches the outermost side of the guide rail A (5); at this time, the two iron magnets (9) are pressed against each other to generate an attractive force, fixing the two protective shells (8) together; at the same time, the valve stem (2) and the handle A (3) are wrapped by the overall structure formed by the two protective shells (8); a synchronization mechanism (10) is installed between the protective shells (8) to maintain the synchronous operation of the protective shells (8).

2. The throttle valve with a protective structure according to claim 1, characterized in that: The synchronization mechanism (10) comprises a support plate B (1001) fixed to the back, and the top of the support plate B (1001) is fixedly connected to a square shell (1002), and the square shell (1002) is open at a position facing the protective shell (8), and a gear (1003) is rotatably connected to the middle portion of the inner portion of the square shell (1002) via a bearing, and a tooth plate (1006) connected to the outer wall of the gear (1003) is slidably connected to the upper and lower sides of the square shell (1002), and the surface of the tooth plate (1006) is fixed to the protective shell (8) via a connecting plate B (1007).

3. The throttle valve with a protective structure according to claim 2, characterized in that: The upper and lower sides of the square shell (1002) are fixedly connected with guide rails B (1004) for sliding the slider B (1005), and the slider B (1005) is fixed to the tooth plate (1006) respectively.

4. The throttle valve with a protective structure according to claim 1, characterized in that: The connection plate A (7) and the protective shell (8) are detachably connected.

5. The throttle valve with a protective structure according to claim 4, characterized in that: The top of the connecting plate A (7) is fixedly connected to a mounting block (13), the back of the protective shell (8) is fixedly connected to a lower opening slot seat (14), the top of the mounting block (13) is fixedly connected to a screw rod (15), the top of the lower opening slot seat (14) is provided with a through hole (16) for the screw rod (15) to pass through, and a nut (17) is threadedly connected to the outer wall of the screw rod (15).

6. The throttle valve with a protective structure according to claim 1, characterized in that: A tempered glass observation window (11) is provided on the surface of the protective shell (8).

7. The throttle valve with a protective structure according to claim 1, characterized in that: A handle B (12) is fixedly connected to the surface of the protective shell (8) above the tempered glass observation window (11).

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