Bidirectional adjustable lifting check valve

Abstract

The utility model discloses a two-way adjustable lifting check valve, and relates to the field of lifting check valves, the two-way adjustable lifting check valve comprises a lifting valve body, the lifting valve body is internally provided with a limiting groove, the inner side wall of the limiting groove is in sliding connection with a transverse plate, the interior of the lifting valve body is in sliding connection with a baffle plate, and the baffle plate is in sliding connection with the limiting groove. The lifting valve comprises a lifting valve body, a limiting ring is connected into the lifting valve body, a transmission plate is slidably connected into the lifting valve body, a first spring is connected to the outer surface of the transmission plate, a blocking plate is slidably connected into the lifting valve body, a limiting shell is connected to the outer surface of the lifting valve body, and a sliding groove is formed in the limiting shell. Through cooperation of the baffle, the transmission plate and other components, the baffle can block the surface of the limiting groove, water cannot flow out of the lifting valve body, the transmission plate can drive the baffle to move, the one-way flowing direction of liquid can be controlled, and the problem that a one-way check valve is inconvenient to use is solved.

Description

Technical Field

[0001] This utility model relates to the field of lifting check valve technology, and in particular to a bidirectional adjustable lifting check valve. Background Technology

[0002] A lift check valve is a type of automatic valve that automatically opens and closes its valve disc based on the flow of the medium itself to prevent backflow of the medium. Its main functions are to prevent backflow of the medium, prevent pumps and drive motors from reversing, and prevent the release of medium from containers.

[0003] Some existing lift check valves can only flow in one direction after installation. Once the check valve is installed, the direction of liquid flow cannot be changed. When modifying the water flow line, it may be necessary to reverse the flow of liquids with these lift check valves installed. In this case, these lift valves need to be removed and reinstalled, which is cumbersome and inconvenient to use. In order to solve this technical problem, this utility model proposes a bidirectional adjustable lift check valve. Utility Model Content

[0004] The main objective of this invention is to provide a bidirectional adjustable lifting check valve, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bidirectional adjustable lift check valve includes a lift valve body, a limit groove is formed inside the lift valve body, a horizontal plate is slidably connected to the inner side wall of the limit groove, a baffle is slidably connected inside the lift valve body, a limit ring is connected inside the lift valve body, a transmission plate is slidably connected inside the lift valve body, a spring is connected to the outer surface of the transmission plate, a baffle plate is slidably connected inside the lift valve body, a limit shell is connected to the outer surface of the lift valve body, a sliding groove is formed inside the limit shell, and a limit mechanism is provided inside the limit shell.

[0007] Preferably, the limiting mechanism includes a toothed plate, the outer surface of which is slidably connected to the inner wall of the groove, the outer surface of which meshes with the outer surface of the cross plate, and a limiting rod is connected to the outer surface of the toothed plate.

[0008] Preferably, the outer surface of the limiting rod is slidably connected to the inside of the limiting shell, and a spring is sleeved on the outer surface of the limiting rod.

[0009] Preferably, one end of the second spring is connected to the inside of the limiting shell, and the end of the second spring away from the limiting shell is connected to the outer surface of the toothed plate, and a connecting plate is connected to the outer surface of the toothed plate.

[0010] Preferably, the outer surface of the connecting plate is slidably connected to the inside of the limiting groove, and a push plate is connected to the outer surface of the connecting plate, and the outer surface of the push plate is slidably connected to the outer surface of the limiting shell.

[0011] Preferably, the outer surface of the cross plate is connected to the outer surface of the baffle, the outer surface of the baffle is connected to the outer surface of the transmission plate, and the end of the spring away from the transmission plate is connected to the outer surface of the barrier plate.

[0012] Preferably, the outer surface of the barrier plate is connected to a sleeve, which is sleeved on the outer surface of the spring.

[0013] Preferably, the outer surface of the barrier plate is connected to a sleeve, which is sleeved on the outer surface of the spring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, through the cooperation between components such as the baffle and the transmission plate, the baffle can first block the surface of the limiting groove. When the transmission plate moves, the baffle will not detach from the surface of the limiting groove. By blocking the limiting groove through the transmission plate, water cannot flow out of the lifting valve body. The transmission plate can move the baffle plate. By moving the baffle plate, it is controlled whether the baffle plate is fitted with the limiting ring, thereby controlling the direction of water flow. The direction of unidirectional liquid flow can be controlled, which is very convenient and solves the problem of the inconvenience of using one-way check valves.

[0016] In this invention, through the cooperation between components such as the spring and the limiting mechanism, when water flows in from the side without the spring, the water can push the barrier plate open, allowing the liquid to flow through the barrier plate. When no liquid flows through, the spring will push the barrier plate to engage with the limiting ring, preventing liquid flowing from the spring side from flowing through the barrier plate. The limiting mechanism can restrict the position of the horizontal plate. After adjusting the position of the transmission plate, the position of the horizontal plate can be fixed by the limiting mechanism, thereby avoiding errors in the position of the transmission plate, which is very convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a bidirectional adjustable lifting check valve according to this utility model;

[0018] Figure 2 This is a schematic diagram of the limiting mechanism of a bidirectional adjustable lifting check valve according to the present invention.

[0019] Figure 3 This is a schematic cross-sectional view of a bidirectional adjustable lifting check valve according to this utility model.

[0020] Figure 4This is a schematic diagram of the spring-connection relationship of a bidirectional adjustable lifting check valve according to this utility model.

[0021] Figure 5 This is a front cross-sectional view of the bidirectional adjustable lifting check valve of this utility model.

[0022] In the diagram: 1. Lifting valve body; 2. Limiting groove; 3. Horizontal plate; 4. Baffle; 5. Limiting ring; 6. Transmission plate; 7. Spring 1; 8. Barrier plate; 9. Limiting shell; 10. Slide groove; 11. Limiting mechanism; 1101. Toothed plate; 1102. Limiting rod; 1103. Spring 2; 1104. Connecting plate; 1105. Push plate; 12. Sleeve. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1-5 As shown, a bidirectional adjustable lift check valve includes a lift valve body 1. A limit groove 2 is formed inside the lift valve body 1, and a horizontal plate 3 is slidably connected to the inner wall of the limit groove 2.

[0025] The lifting valve body 1 has a baffle 4 internally slidably connected, and a limit ring 5 internally connected. The lifting valve body 1 restricts the position that the baffle 4 can move, so that the position of the baffle 4 will not deviate. The lifting valve body 1 fixes the position of the limit ring 5.

[0026] The inside of the lifting valve body 1 is slidably connected to a transmission plate 6, and the outer surface of the transmission plate 6 is connected to a spring 7. The lifting valve body 1 restricts the position that the transmission plate 6 can move, and the lifting valve body 1 prevents the transmission plate 6 from tilting when it moves. Liquid cannot flow out from the position where the transmission plate 6 contacts the lifting valve body 1. The transmission plate 6 fixes the position of the spring 7, and the spring 7 moves with the transmission plate 6 when it moves.

[0027] The lifting valve body 1 has a baffle plate 8 slidably connected inside. The outer surface of the lifting valve body 1 is connected to a limit shell 9. The limit shell 9 has a slide groove 10 inside and a limit mechanism 11 inside. The lifting valve body 1 restricts the position that the baffle plate 8 can move. The lifting valve body 1 prevents the baffle plate 8 from tilting when it moves. Liquid cannot flow out from the position where the baffle plate 8 contacts the lifting valve body 1. The inner side wall of the slide groove 10 is relatively smooth, and other items experience less friction when moving on the inner side wall of the slide groove 10.

[0028] The limiting mechanism 11 includes a toothed plate 1101. The outer surface of the toothed plate 1101 is slidably connected to the inner wall of the slide groove 10. The outer surface of the toothed plate 1101 meshes with the outer surface of the horizontal plate 3. A limiting rod 1102 is connected to the outer surface of the toothed plate 1101. The slide groove 10 restricts the direction in which the toothed plate 1101 can move, thereby preventing the toothed plate 1101 from deviating from its position. When the toothed plate 1101 meshes with the horizontal plate 3, the horizontal plate 3 cannot move up or down. The toothed plate 1101 fixes the position of the limiting rod 1102. When the toothed plate 1101 moves, it will move the limiting rod 1102 with it.

[0029] The outer surface of the limiting rod 1102 is slidably connected to the inside of the limiting shell 9. A spring 1103 is sleeved on the outer surface of the limiting rod 1102. The limiting shell 9 restricts the position of the limiting rod 1102, thereby preventing the limiting rod 1102 from shaking easily. The limiting rod 1102 also prevents the spring 1103 from getting mixed up with other springs 1103 when it contracts.

[0030] One end of the second spring 1103 is connected to the inside of the limiting shell 9, and the end of the second spring 1103 away from the limiting shell 9 is connected to the outer surface of the toothed plate 1101. The outer surface of the toothed plate 1101 is connected to the connecting plate 1104. The limiting shell 9 will fix the position of the second spring 1103. The second spring 1103 provides a thrust to the toothed plate 1101, so that the toothed plate 1101 can mesh with the horizontal plate 3 when there is no other external force. The toothed plate 1101 will fix the position of the connecting plate 1104. When the connecting plate 1104 moves, it will move the toothed plate 1101 with it.

[0031] The outer surface of the connecting plate 1104 is slidably connected to the inside of the limiting groove 2. The outer surface of the connecting plate 1104 is connected to the push plate 1105. The outer surface of the push plate 1105 is slidably connected to the outer surface of the limiting shell 9. The limiting groove 2 can restrict the position that the connecting plate 1104 can move. The connecting plate 1104 will fix the position of the push plate 1105. When the push plate 1105 moves, it can move the connecting plate 1104 along with it. The limiting shell 9 can provide support for the push plate 1105.

[0032] The outer surface of the horizontal plate 3 is connected to the outer surface of the baffle 4, and the outer surface of the baffle 4 is connected to the outer surface of the transmission plate 6. The end of the spring 7 away from the transmission plate 6 is connected to the outer surface of the barrier plate 8. The baffle 4 will fix the position of the horizontal plate 3. When the horizontal plate 3 moves, it will move the baffle 4. The transmission plate 6 will fix the position of the baffle 4. When the baffle 4 moves, it will move the transmission plate 6. The spring 7 provides thrust to the barrier plate 8.

[0033] The outer surface of the baffle plate 8 is connected to the sleeve 12, which is fitted onto the outer surface of the spring 7. The baffle plate 8 fixes the position of the sleeve 12. When the baffle plate 8 moves, it will move the sleeve 12 with it. The sleeve 12 is used to reduce the spring 7 from bulging too much to one side when compressed.

[0034] Working principle: When using this device, first pull the push plate 1105. When the push plate 1105 moves, the connecting plate 1104 will move along with the toothed plate 1101. After the toothed plate 1101 separates from the horizontal plate 3, the horizontal plate 3 can be moved. The movement of the horizontal plate 3 will cause the baffle 4 to move along with the transmission plate 6. When the transmission plate 6 moves to the position where the baffle plate 8 and the limiting ring 5 are in close contact, you can release the hand that pulled the connecting plate 1104. Then the spring 1103 will push the toothed plate 1101 to re-engage with the baffle 4. When it is necessary to change the direction of water flow, simply move the transmission plate 6 on the side that is currently in contact with the limiting ring 5 back to its original position and move the transmission plate 6 on the other side to the position where the baffle plate 8 and the limiting ring 5 are in close contact.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A two-way adjustable lift check valve, characterized in that: The invention comprises a lifting valve body (1), wherein a limiting groove (2) is provided inside the lifting valve body (1), a transverse plate (3) is slidably connected to the inner wall of the limiting groove (2), a baffle (4) is slidably connected to the inside of the lifting valve body (1), a limiting ring (5) is connected to the inside of the lifting valve body (1), a transmission plate (6) is slidably connected to the inside of the lifting valve body (1), a spring (7) is connected to the outer surface of the transmission plate (6), a blocking plate (8) is slidably connected to the inside of the lifting valve body (1), a limiting shell (9) is connected to the outer surface of the lifting valve body (1), a sliding groove (10) is provided inside the limiting shell (9), and a limiting mechanism (11) is arranged inside the limiting shell (9).

2. A two-way adjustable lift check valve according to claim 1, characterized in that: The limiting mechanism (11) comprises a tooth plate (1101), the outer surface of the tooth plate (1101) is slidably connected to the inner wall of the slide groove (10), the outer surface of the tooth plate (1101) is meshed with the outer surface of the cross plate (3), and the outer surface of the tooth plate (1101) is connected to the limiting rod (1102).

3. A two-way adjustable lift check valve according to claim 2, characterized in that: The outer surface of the limiting rod (1102) is slidably connected to the interior of the limiting shell (9), and the outer surface of the limiting rod (1102) is sleeved with a second spring (1103).

4. A two-way adjustable lift check valve according to claim 3, characterized in that: One end of the second spring (1103) is connected to the interior of the limiting shell (9), and one end of the second spring (1103) away from the limiting shell (9) is connected to the outer surface of the tooth plate (1101), and the outer surface of the tooth plate (1101) is connected to a connecting plate (1104).

5. A two-way adjustable lifting check valve according to claim 4, characterized in that: The outer surface of the connecting plate (1104) is slidably connected to the inside of the limiting groove (2), the outer surface of the connecting plate (1104) is connected to a push plate (1105), and the outer surface of the push plate (1105) is slidably connected to the outer surface of the limiting shell (9).

6. A two-way adjustable lift check valve according to claim 1, characterized in that: The outer surface of the transverse plate (3) is connected to the outer surface of the baffle plate (4), the outer surface of the baffle plate (4) is connected to the outer surface of the transmission plate (6), and the end of the spring (7) away from the transmission plate (6) is connected to the outer surface of the blocking plate (8).

7. A two-way adjustable lift check valve according to claim 1, characterized in that: The outer surface of the baffle plate (8) is connected to a sleeve (12), and the sleeve (12) is sleeved on the outer surface of the spring 1 (7).

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