Check valve with damping check valve element

Abstract

The check valve comprises a valve body, the side wall of the valve body is an outlet, the bottom of the valve body is an inlet, the top of the valve body is fixedly connected with a valve deck through a bolt, the valve deck is in threaded connection with a valve rod, the top of the valve rod is fixedly connected with a rotary disc, and the rotary disc is fixedly connected with a damping check valve element. The bottom of the valve rod is fixedly connected with a valve element, the valve element corresponds to an inner valve port of the valve body, and a buffering device is arranged at the bottom of the valve element. According to the check valve with the damping check valve element, a buffering device is arranged at the bottom of the valve element, impact and vibration generated when the valve element is closed are effectively reduced, and therefore the service life of the valve is prolonged; and stable speed reduction can be achieved when the valve element is closed, impact and vibration are further reduced, a damping block is arranged to absorb energy, and the overall damping effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of valve bodies, and more specifically to a check valve with a shock-absorbing check valve core. Background Art

[0002] In the fluid delivery system, the check valve is a key component, and its main function is to prevent fluid backflow. However, traditional check valves often produce large shocks and vibrations when closing, which not only affects the service life of the valve, but may also have an adverse effect on the entire fluid system. In order to solve this problem, it is necessary to design a check valve with a shock-absorbing function to reduce the shock and vibration when closing. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problem that traditional check valves in the prior art often generate large impact and vibration when closing, which not only affects the service life of the valve, but may also have an adverse effect on the entire fluid system, the purpose of the utility model is to provide a check valve with a shock-absorbing check valve core, which can realize the arrangement of a buffer device at the bottom of the valve core, effectively reducing the impact and vibration when the valve core is closed, thereby extending the service life of the valve, and through the combined design of the first spring and the moving plate, the moving rod, and the buffer block in the buffer device, the valve core can achieve smooth deceleration when closing, further reducing the impact and vibration, and a damping block is arranged to absorb energy and improve the overall shock absorption effect.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A check valve with a shock-absorbing check valve core comprises a valve body, wherein the side wall of the valve body is an outlet, the bottom of the valve body is an inlet, the top of the valve body is fixedly connected to a valve cover by bolts, the valve cover is threadedly connected to a valve stem, the top of the valve stem is fixedly connected to a turntable, the bottom of the valve stem is fixedly connected to a valve core, the valve core corresponds to an internal valve port of the valve body, and a buffer device is provided at the bottom of the valve core.

[0008] Preferably, the buffer device includes a first spring, a moving plate, a moving rod and a buffer block. A cavity is provided inside the valve core, and the inner wall of the cavity of the valve core is fixedly connected to the first spring. The moving plate is located in the cavity of the valve core. The first spring supports the moving plate. The bottom of the moving plate is fixedly connected to the moving rod, the moving rod is slidably connected to the valve core, and the bottom of the moving rod is fixedly connected to the buffer block.

[0009] Preferably, a damping block is disposed inside the cavity of the valve core, and the damping block supports the moving plate.

[0010] Preferably, a second spring is fixedly connected to the outer wall of the valve core, and the second spring supports the middle part of the buffer block.

[0011] Preferably, a rubber pad is provided on the surface of the buffer block.

[0012] Preferably, the number of the movement bars is two.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] By arranging a buffer device at the bottom of the valve core, the impact and vibration when the valve core is closed are effectively reduced, thereby extending the service life of the valve.

[0016] Through the combined design of the first spring and the moving plate, the moving rod and the buffer block in the buffer device, the valve core can achieve smooth deceleration when closing, further reducing impact and vibration.

[0017] By setting the damping block, energy can be absorbed and the overall shock absorption effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0021] Description of the numbers in the figure:

[0022] 1. Valve body; 2. Outlet; 3. Inlet; 4. Valve cover; 5. Valve stem; 6. Turntable; 7. Valve core; 8. Buffer device; 81. First spring; 82. Moving plate; 83. Moving rod; 84. Buffer block; 85. Damping block; 86. Second spring; 87. Rubber pad. DETAILED DESCRIPTION

[0023] 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 them. 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.

[0024] Embodiment 1:

[0025] See also Figure 1-3 The utility model provides a technical solution: a check valve with a shock-absorbing check valve core, comprising a valve body 1, the side wall of the valve body 1 is an outlet 2, the bottom of the valve body 1 is an inlet 3, the top of the valve body 1 is fixedly connected with a valve cover 4 by bolts, the valve cover 4 is threadedly connected with a valve stem 5, the top of the valve stem 5 is fixedly connected with a turntable 6, the bottom of the valve stem 5 is fixedly connected with a valve core 7, the valve core 7 corresponds to the internal valve port of the valve body 1, and a buffer device 8 is arranged at the bottom of the valve core 7. The side wall of the valve body 1 is the outlet 2, the bottom of the valve body 1 is the inlet 3, the valve body 1 is connected to the pipeline, the valve stem 5 is controlled to rotate through the turntable 6, and then the height of the valve core 7 is controlled, so as to control the connection and closing of the valve body 1, and the buffer device 8 is arranged at the bottom of the valve core 7, which effectively reduces the impact and vibration when the valve core 7 is closed, thereby extending the service life of the valve.

[0026] The buffer device 8 includes a first spring 81, a moving plate 82, a moving rod 83 and a buffer block 84. A cavity is provided inside the valve core 7. The inner wall of the cavity of the valve core 7 is fixedly connected with the first spring 81. The moving plate 82 is located in the cavity of the valve core 7. The first spring 81 supports the moving plate 82. The bottom of the moving plate 82 is fixedly connected with a moving rod 83. The moving rod 83 is slidably connected to the valve core 7. The bottom of the moving rod 83 is fixedly connected with a buffer block 84. Through the combined design of the first spring 81 and the moving plate 82, the moving rod 83 and the buffer block 84 in the buffer device 8, the valve core 7 can achieve smooth deceleration when closing, further reducing impact and vibration.

[0027] A damping block 85 is disposed inside the cavity of the valve core 7, and the damping block 85 supports the moving plate 82. The damping block 85 is disposed to absorb energy and improve the overall shock absorption effect.

[0028] The outer wall of the valve core 7 is fixedly connected with a second spring 86, and the second spring 86 supports the middle part of the buffer block 84. The outer wall of the valve core 7 is fixedly connected with a second spring 86, which further supports the buffer block 84 and further enhances the buffer effect.

[0029] The surface of the buffer block 84 is provided with a rubber pad 87. The provision of the rubber pad 87 not only increases the wear resistance of the buffer block, but also can absorb impact energy to a certain extent.

[0030] There are two movement rods 83. Two movement rods 83 are provided to improve the movement stability of the buffer block 84.

[0031] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field within the technical scope disclosed by the utility model and any equivalent replacement or change based on the technical solution and improved concept of the utility model shall be included in the protection scope of the utility model.

Claims

1. A check valve with a damping check valve core, comprising a valve body (1), characterized in that: The side wall of the valve body (1) is an outlet (2), the bottom of the valve body (1) is an inlet (3), the top of the valve body (1) is fixedly connected to a valve cover (4) by means of bolts, the valve cover (4) is threadedly connected to a valve stem (5), the top of the valve stem (5) is fixedly connected to a turntable (6), the bottom of the valve stem (5) is fixedly connected to a valve core (7), the valve core (7) corresponds to an internal valve port of the valve body (1), and a buffer device (8) is provided at the bottom of the valve core (7).

2. A check valve with a shock-absorbing check valve core according to claim 1, characterized in that: The buffer device (8) comprises a first spring (81), a moving plate (82), a moving rod (83) and a buffer block (84); a cavity is provided inside the valve core (7); the first spring (81) is fixedly connected to the inner wall of the cavity of the valve core (7); the moving plate (82) is located in the cavity of the valve core (7); the first spring (81) supports the moving plate (82); the bottom of the moving plate (82) is fixedly connected to the moving rod (83); the moving rod (83) is slidably connected to the valve core (7); and the bottom of the moving rod (83) is fixedly connected to the buffer block (84).

3. A check valve with a damping check valve core according to claim 2, characterized in that: A damping block (85) is arranged inside the cavity of the valve core (7), and the damping block (85) supports the moving plate (82).

4. A check valve with a shock-absorbing check valve core according to claim 2, characterized in that: A second spring (86) is fixedly connected to the outer wall of the valve core (7), and the second spring (86) supports the middle part of the buffer block (84).

5. A check valve with a shock-absorbing check valve core according to claim 4, characterized in that: A rubber pad (87) is provided on the surface of the buffer block (84).

6. A check valve with a shock-absorbing check valve core according to claim 2, characterized in that: The number of the movement rods (83) is two.

Images