A valve with an anti-loosening structure

Abstract

This utility model discloses a valve with an anti-loosening structure, including a valve body, a valve cover mounted on the top of the valve body, a valve stem mounted on the top of the valve cover, a handwheel mounted on the top of the valve stem, and an anti-loosening component for locking the handwheel on the top of the valve cover. The anti-loosening component includes a fixing tube fixedly mounted on the top of the valve cover. Through the inclusion of an elastic component and an anti-loosening component, the elastic component provides elastic power to the anti-loosening component, allowing the moving plate in the anti-loosening component to easily slide within a groove, thus facilitating the insertion of the positioning rod into the positioning hole and simplifying the operation process. The effective locking of the valve cover and valve stem by the anti-loosening component prevents the valve body from loosening, improves the valve's anti-opening and anti-closing performance, enhances the valve's sealing performance, and ensures the safe operation of the system. The presence of the anti-loosening component provides additional protection for the valve and enhances its reliability.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve with an anti-loosening structure. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Based on their function, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or pressure relief. Valves used in fluid control systems range from the simplest shut-off valves to the various valves used in extremely complex automated control systems, with a wide variety of types and specifications.

[0003] The prior art provides a valve (publication number CN219198321U) including a valve body, and the valve body is provided with a packing chamber for installing packing. The packing chamber is threadedly engaged with a packing gland. The packing gland contacts the packing in the packing chamber through a spacer. In summary, this device uses the spacer to isolate the packing from the packing. Therefore, when the packing gland rotates, it presses against the spacer, and then the spacer presses against the packing. This allows the spacer to overcome the influence of the axial rotation torque of the packing gland on the packing. Therefore, this invention reduces the problem of the packing gland directly acting on the packing, which could cause the packing to twist, by linking the spacer and the packing gland. This ensures that the axial pressure of the packing gland can be stably delivered to the packing, thereby achieving a seal on the valve body.

[0004] Based on the above patent search, the above patents use a threaded connection between the gland and the valve body in actual use. The valve rotates through the valve stem, causing the internal components of the valve body to move and control the flow of the pipeline. Therefore, the valve stem must be kept from loosening. However, there is no fixed structure for secondary locking when the two are connected. Loosening of the valve stem may affect the sealing performance of the valve, leading to leakage and even causing safety accidents. Therefore, we need to propose a valve with an anti-loosening structure. Utility Model Content

[0005] The purpose of this utility model is to provide a valve with an anti-loosening structure. Through the cooperation of the anti-loosening component and the elastic component, the elastic potential energy of the elastic component enables the anti-loosening component to further strengthen the fixation between the valve body and the valve stem, preventing the valve stem from loosening, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A valve with an anti-loosening structure includes a valve body, a valve cover mounted on the top of the valve body, a valve stem mounted on the top of the valve cover, a handwheel provided on the top of the valve stem, and an anti-loosening component for locking and fixing the handwheel on the top of the valve cover.

[0008] The anti-loosening component includes a fixed tube fixedly installed on the top of the valve cover. The handwheel has two sets of sliding grooves inside, and a movable plate is slidably arranged inside each of the two sets of sliding grooves. A positioning rod is installed on one side of each of the two sets of movable plates. The fixed tube has two sets of positioning holes for the positioning rods to be inserted into. An elastic component for driving the movable plate is provided inside each of the two sets of sliding grooves.

[0009] Preferably, the elastic component includes sliders fixedly installed on both sides of the two sets of movable plates, multiple sets of sliders being slidably installed in the two sets of sliding grooves, multiple sets of fixing rods being installed inside the two sets of sliding grooves, multiple sets of sliders being slidably installed on the outside of the multiple sets of fixing rods, and a return spring being sleeved on the outside of the multiple sets of fixing rods.

[0010] Preferably, a push plate is installed on the top of both sets of movable plates, and the bottom of both sets of push plates is in contact with the top of the handwheel.

[0011] Preferably, the top of the handwheel is provided with a limiting component to limit the anti-loosening component, and one side of each of the two sets of push plates is provided with a limiting groove that cooperates with the limiting component.

[0012] Preferably, the limiting component includes two sets of movable seats fixedly installed on the top of the handwheel, and a limiting rod is rotatably installed inside each of the two sets of movable seats. The two sets of limiting rods are respectively engaged in two sets of limiting grooves.

[0013] Preferably, a sealing gasket is provided on the top of the valve body, and the sealing gasket is located between the valve body and the valve cover.

[0014] Preferably, mounting plates are installed on both sides of the valve body, and multiple sets of mounting holes are symmetrically opened between the two sets of mounting plates, and the multiple sets of mounting holes are arranged in a ring array.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention incorporates an elastic component and an anti-loosening component. The elastic component provides elastic power to the anti-loosening component, allowing the movable plate in the anti-loosening component to slide easily within the groove. This facilitates the insertion of the positioning rod into the positioning hole, simplifying the operation process. The anti-loosening component effectively locks the valve cover and valve stem, preventing the valve body from loosening, improving the valve's anti-opening and anti-closing performance, resulting in better valve sealing and ensuring the safe operation of the system. The presence of the anti-loosening component provides additional protection for the valve, enhancing its reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the anti-loosening component and the limiting component of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the elastic component of this utility model.

[0020] In the diagram: 1. Valve body; 2. Valve cover; 3. Valve stem; 4. Handwheel; 5. Anti-loosening component; 51. Fixing pipe; 52. Slide groove; 53. Moving plate; 54. Positioning rod; 55. Positioning hole; 56. Elastic component; 561. Slider; 562. Fixing rod; 563. Return spring; 6. Push plate; 7. Limiting component; 71. Movable seat; 72. Limiting rod; 8. Limiting groove; 9. Sealing gasket; 10. Mounting plate; 11. Mounting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution:

[0023] A valve with an anti-loosening structure includes a valve body 1, a valve cover 2 installed on the top of the valve body 1, a valve stem 3 installed on the top of the valve cover 2, a handwheel 4 provided on the top of the valve stem 3, and an anti-loosening component 5 for locking and fixing the handwheel 4 on the top of the valve cover 2.

[0024] The anti-loosening component 5 includes a fixing tube 51 fixedly installed on the top of the valve cover 2, two sets of sliding grooves 52 are provided inside the handwheel 4, and a moving plate 53 is slidably arranged inside the two sets of sliding grooves 52. A positioning rod 54 is installed on one side of each of the two sets of moving plates 53. Two sets of positioning holes 55 are provided inside the fixing tube 51 for the positioning rod 54 to be inserted. An elastic component 56 for driving the moving plate 53 is provided inside the two sets of sliding grooves 52.

[0025] The elastic component 56 includes sliders 561 that are fixedly installed on both sides of the two sets of movable plates 53. Multiple sliders 561 are slidably installed in the two sets of slide grooves 52. Multiple fixing rods 562 are installed inside the two sets of slide grooves 52. Multiple sliders 561 are slidably installed on the outside of the multiple fixing rods 562. A return spring 563 is sleeved on the outside of the multiple fixing rods 562.

[0026] The cooperation between slider 561 and slide groove 52 provides a stable sliding track for moving plate 53, ensuring that moving plate 53 can move smoothly along the predetermined path during operation, thus improving its stability. Fixed rod 562 further enhances the guiding nature of slider 561, making slider 561 slide more smoothly in slide groove 52 and not deviate from the track. Return spring 563 is sleeved on the outside of fixed rod 562 and connected to slider 561. When moving plate 53 is moved by external force, return spring 563 will be compressed or stretched. Once the external force disappears, return spring 563 will use its elastic force to push slider 561, thereby pushing moving plate 53 back to the initial position, realizing the function of automatic reset.

[0027] Push plates 6 are installed on the top of both sets of movable plates 53, and the bottom of both sets of push plates 6 are in contact with the top of the handwheel 4.

[0028] The design of the push plate 6 reduces the gap between the handwheel 4 and the push plate 6, thereby preventing adverse circumferential sliding or displacement during operation, ensuring the accuracy and stability of operation, and making it easier to operate the anti-loosening component 5.

[0029] The top of the handwheel 4 is provided with a limiting component 7 to limit the anti-loosening component 5, and a limiting groove 8 is provided on one side of each of the two sets of push plates 6 to cooperate with the limiting component 7.

[0030] By using the limiting component 7 on the top of the handwheel 4 in conjunction with the limiting groove 8 on one side of the push plate 6, the movement range or return angle of the push plate 6 can be effectively limited, preventing the push plate 6 from shifting or jamming, thereby improving the accuracy of operation.

[0031] The limiting assembly 7 includes two sets of movable seats 71 fixedly installed on the top of the handwheel 4. Each set of movable seats 71 has a limiting rod 72 rotatably installed inside it. The two sets of limiting rods 72 are respectively engaged in the two sets of limiting grooves 8.

[0032] With the installation of the movable seat 71 and the limiting rod 72, the push plate 6 can be quickly limited and tightened, making it easier for the operator to rotate the handwheel 4, and making it more flexible and convenient to use.

[0033] A sealing gasket 9 is provided on the top of the valve body 1, and the sealing gasket 9 is located between the valve body 1 and the valve cover 2.

[0034] The sealing gasket 9 is an essential part of the valve. Its main function is to ensure the valve's tightness and prevent the medium from leaking between the valve body 1 and the valve cover 2, thereby ensuring the normal operation of the valve.

[0035] The design of the mounting holes 11 in the annular array of the valve body 1 allows the valve to be evenly stressed after installation, which improves the stability of the valve, reduces loosening or damage caused by vibration or external forces, helps to maintain the valve's sealing during installation, prevents liquid or gas leakage, and improves the valve's performance.

[0036] Working principle: After the threaded connection between the valve body 1 and the valve stem 3 is sealed, the push plate 6 is loosened, and the compressed return spring 563 releases its elastic potential energy, pushing the slider 561 and the moving plate 53 to move in the slide groove 52. This causes the moving plate 53 to drive the positioning rod 54 to move until the positioning rod 54 is inserted into the positioning hole 55, thus completing the secondary locking of the valve body 1 and the valve stem 3.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve with an anti-loosening structure, comprising a valve body (1), characterized in that: The valve body (1) is equipped with a valve cover (2) on top, the valve cover (2) is equipped with a valve stem (3) on top, the valve stem (3) is equipped with a handwheel (4) on top, and the valve cover (2) is equipped with an anti-loosening component (5) for locking and fixing the handwheel (4) on top. The anti-loosening component (5) includes a fixed tube (51) fixedly installed on the top of the valve cover (2). The handwheel (4) has two sets of sliding grooves (52) inside. A movable plate (53) is slidably arranged inside both sets of sliding grooves (52). A positioning rod (54) is installed on one side of both sets of movable plates (53). The inner cavity of the fixed tube (51) has two sets of positioning holes (55) for the positioning rod (54) to be inserted. An elastic component (56) for driving the movable plate (53) is provided inside both sets of sliding grooves (52).

2. A valve with an anti-loosening structure according to claim 1, characterized in that: The elastic component (56) includes sliders (561) fixedly installed on both sides of two sets of movable plates (53). Multiple sets of sliders (561) are slidably installed in two sets of sliding grooves (52). Multiple sets of fixing rods (562) are installed inside the two sets of sliding grooves (52). Multiple sets of sliders (561) are slidably installed on the outside of multiple sets of fixing rods (562). A return spring (563) is sleeved on the outside of multiple sets of fixing rods (562).

3. A valve with an anti-loosening structure according to claim 1, characterized in that: Both sets of movable plates (53) are equipped with push plates (6) on their tops, and the bottoms of both sets of push plates (6) are in contact with the top of the handwheel (4).

4. A valve with an anti-loosening structure according to claim 3, characterized in that: The top of the handwheel (4) is provided with a limiting component (7) to limit the anti-loosening component (5), and a limiting groove (8) is provided on one side of each of the two sets of push plates (6) to cooperate with the limiting component (7).

5. A valve with an anti-loosening structure according to claim 4, characterized in that: The limiting component (7) includes two sets of movable seats (71) fixedly installed on the top of the handwheel (4). Each set of movable seats (71) has a limiting rod (72) rotatably installed inside. The two sets of limiting rods (72) are respectively engaged in the two sets of limiting grooves (8).

6. A valve with an anti-loosening structure according to claim 1, characterized in that: A sealing gasket (9) is provided on the top of the valve body (1), and the sealing gasket (9) is located between the valve body (1) and the valve cover (2).

7. A valve with an anti-loosening structure according to claim 1, characterized in that: The valve body (1) is equipped with mounting plates (10) on both sides respectively. Multiple sets of mounting holes (11) are symmetrically opened between the two sets of mounting plates (10), and the multiple sets of mounting holes (11) are arranged in a ring array.

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