Valve clack and valve rod connecting structure

Abstract

The utility model provides a valve clack and valve rod connecting structure, which relates to the technical field of valve control and comprises a valve body, and a valve control pipe is fixedly arranged in the middle of the top of the valve body. A guide seat is fixedly arranged at the bottom of the valve control pipe; a sliding column is slidably arranged in the guide seat, a sliding valve clack is fixedly arranged at the rear end of the sliding column, and the periphery of the sliding valve clack is of a conical structure and is fixedly provided with a double-layer sealing ring; the rear end of the sliding column penetrates through the guide base and is fixedly provided with an inverted guide groove piece. The sliding valve clack has the function of controlling the closing direction, when liquid flows through the valve body, the sliding valve clack is opened through pressure, and water can penetrate through an edge seal of the sliding valve clack to enter the valve body and flow through the valve body. At the moment, the sliding valve clack provides the function of a one-way valve, and the spring outside the sliding column provides acting force to close the sliding valve clack to prevent backflow when liquid flows back.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve control, and more specifically, particularly relates to a valve flap and valve stem connection structure. Background Art

[0002] The valve disc and valve stem are the main structures in the valve used to control the opening and closing of the valve body. All kinds of valves need to use the valve disc for opening and closing control. The valve stem is mainly a screw structure, which controls the lifting or rotation of the valve disc through threaded transmission.

[0003] Based on the above, the valve flaps currently used generally only provide a single type of control, which is inconvenient to perform directional control as needed, and is inconvenient to control the opening and closing state and the flow direction. Utility Model Content

[0004] In order to solve the above technical problems at least to a certain extent, the utility model provides a valve disc and valve stem connection structure.

[0005] The purpose and effect of the valve disc and valve stem connection structure of the utility model are achieved by the following specific technical means:

[0006] A valve disc and valve stem connection structure, including a valve body, a valve control tube is fixedly arranged in the top middle of the valve body; a guide seat is fixedly arranged at the bottom of the valve control tube; a sliding column is slidably arranged in the guide seat, a sliding valve disc is fixedly arranged at the rear end of the sliding column, the periphery of the sliding valve disc is a conical structure and a double-layer sealing ring is fixedly arranged; a reverse guide groove is fixedly arranged at the rear end of the sliding column through the guide seat.

[0007] Furthermore, a sliding seat is slidably arranged on the inner side of the bottom of the valve control tube, and a spring is arranged at the bottom of the sliding seat; a control touch rod is fixedly arranged at the bottom of the sliding seat, and the control touch rod passes through the top of the guide seat; a threaded valve stem is arranged on the top of the valve control tube through a threaded connection; and a limited expansion opening is fixedly arranged at the front end of the guide seat.

[0008] Furthermore, two groups of side sliding grooves are provided on both sides of the sliding column, and sliding bar structures matching the side sliding grooves are integrally arranged on both sides of the inner part of the guide seat; a positive sliding guide groove is provided on the rear side of the sliding column, and the positive sliding guide groove is a turning structure that is wide at the top and narrow at the bottom and tilted backward in the middle; a spring is provided on the outer sleeve of the sliding column.

[0009] Furthermore, the control touch plug rod can be inserted into the positive sliding guide groove, and the sliding valve flap closes the internal channel of the valve body.

[0010] Furthermore, the interior of the reverse guide groove member is a through groove opposite to the forward guide groove.

[0011] Furthermore, a trigger lever is slidably provided on the lower rear side of the valve body, a spring is provided on the outside of the trigger lever, and a reverse control plug rod is fixedly provided on the top of the trigger lever.

[0012] Furthermore, the reverse control plug rod can be inserted into the reverse guide groove member, and at this time the sliding valve flap does not contact the inner surface of the valve body.

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

[0014] The sliding valve disc has the function of controlling the closing direction. When the liquid flows through the valve body, the sliding valve disc is pushed open by pressure, and water will pass through the edge seal of the sliding valve disc and flow into the valve body and flow through the valve body; at this time, the sliding valve disc provides the function of a one-way valve. When the liquid flows back, the spring outside the sliding column provides the force to close the sliding valve disc to prevent backflow.

[0015] The threaded valve stem provides the function of flow cutoff and sealing. When flow cutoff is required, the threaded valve stem is rotated to push the sliding seat downward, the control plug rod is inserted into the positive sliding guide groove, the sliding column is pushed forward and fixed, and the sliding valve disc is used to close the valve body during the conveying process to achieve flow cutoff, which is convenient for control.

[0016] The reverse flow of the pipeline can be controlled by using the reverse control rod. The trigger rod is manually pushed forward to insert the reverse control rod into the reverse guide groove part, so that the reverse guide groove part moves backward, and then the sliding column is pulled open, and the sliding valve disc is separated from the valve body to ensure that the liquid can flow backward, thereby performing reverse pumping and other operations; after releasing the trigger rod, the trigger rod is automatically reset by the spring to pull the reverse control rod out of the reverse guide groove part to complete the reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the one-way conveying structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in the intercepting state.

[0019] Figure 3 It is a schematic diagram of the reversible flow state structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the transmission component of the utility model.

[0021] Figure 5 This utility model Figure 4 Schematic diagram of the split structure.

[0022] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0023] 1. Valve body; 2. Valve control pipe; 201. Guide seat; 202. Sliding seat; 203. Control touch rod; 204. Threaded valve stem; 205. Limit expansion; 3. Sliding column; 301. Sliding valve disc; 302. Side sliding groove; 303. Forward sliding guide groove; 4. Reverse guide groove member; 5. Trigger lever; 501. Reverse control rod. DETAILED DESCRIPTION

[0024] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0025] Embodiment 1:

[0026] like Figures 1 to 5 As shown:

[0027] The present embodiment provides a valve disc and valve stem connection structure, including a valve body 1, a valve control tube 2 is fixedly arranged in the middle of the top of the valve body 1; a guide seat 201 is fixedly arranged at the bottom of the valve control tube 2; a sliding column 3 is slidably arranged in the guide seat 201, and a sliding valve disc 301 is fixedly arranged at the rear end of the sliding column 3. The outer periphery of the sliding valve disc 301 is a conical structure and a double-layer sealing ring is fixedly arranged; the rear end of the sliding column 3 passes through the guide seat 201 and is fixedly provided with an inverted guide groove member 4.

[0028] Among them, a sliding seat 202 is slidably arranged on the inner side of the bottom of the valve control tube 2, and a spring is arranged at the bottom of the sliding seat 202; a control touch plug rod 203 is fixedly arranged at the bottom of the sliding seat 202, and the control touch plug rod 203 passes through the top of the guide seat 201; a threaded valve stem 204 is arranged on the top of the valve control tube 2 through a threaded connection; a limited expansion opening 205 is fixedly arranged at the front end of the guide seat 201, and the limited expansion opening 205 can limit the maximum expansion range of the sliding valve disc 301 and protect the spring outside the sliding column 3, so that the flowing liquid will not flush the spring.

[0029] Among them, two groups of side sliding grooves 302 are opened on both sides of the sliding column 3, and the inner sides of the guide seat 201 are integrally provided with sliding bar structures that match the side sliding grooves 302; a positive sliding guide groove 303 is opened on the rear side of the sliding column 3, and the positive sliding guide groove 303 is a turning structure that is wide at the top and narrow at the bottom and tilted backward in the middle; a spring is arranged on the outer sleeve of the sliding column 3.

[0030] The control touch rod 203 can be inserted into the positive sliding guide groove 303, and the sliding valve flap 301 closes the internal channel of the valve body 1 to achieve flow interception.

[0031] The interior of the reverse guide groove member 4 is a through groove opposite to the forward guide groove 303 and is used for reverse operation.

[0032] A trigger lever 5 is slidably disposed at the lower rear side of the valve body 1 , a spring is disposed outside the trigger lever 5 , and a reverse control plug rod 501 is fixedly disposed at the top of the trigger lever 5 .

[0033] The reverse control plug rod 501 can be inserted into the reverse guide groove member 4 , and at this time the sliding valve flap 301 does not contact the inner surface of the valve body 1 .

[0034] like Figure 1 As shown, install the valve body 1 in the pipeline and use it according to Figure 1 When the liquid flows through the valve body 1, the sliding valve disc 301 is opened by pressure, and the water passes through the edge seal of the sliding valve disc 301 and enters the flow-through valve body 1 and flows through the flow-through valve body 1;

[0035] At this time, the sliding valve flap 301 provides a one-way valve function. When the liquid flows back, the spring outside the sliding column 3 provides a force to close the sliding valve flap 301 to prevent the backflow.

[0036] Embodiment 2:

[0037] On the basis of Example 1, Figure 2 As shown, when forced closure is required, the threaded valve stem 204 is rotated to push the sliding seat 202 downward, the control touch rod 203 is inserted into the positive sliding guide groove 303, the sliding column 3 is pushed forward and fixed, and the sliding valve disc 301 is used to close the valve body 1 during the conveying process to achieve flow cutoff.

[0038] Embodiment 3:

[0039] On the basis of Example 1, Figure 3 As shown, when reverse flow is required, the trigger lever 5 is manually pushed forward, and the reverse control plug rod 501 is inserted into the reverse guide groove member 4, so that the reverse guide groove member 4 moves backward, and then the sliding column 3 is pulled open, and the sliding valve disc 301 is separated from the valve body 1 to ensure that the liquid can reverse flow, thereby performing reverse pumping and other operations;

[0040] At this time, after releasing the trigger lever 5, the trigger lever 5 automatically resets through the spring to pull the reverse control plug 501 out of the reverse guide groove member 4 and resets again. Figure 1 status.

[0041] The specific usage and function of this embodiment are as follows:

[0042] In the utility model, when in use, the valve body 1 is installed in the pipeline, according to Figure 1 When the liquid flows through the valve body 1, the sliding valve flap 301 is opened by pressure, and the water passes through the edge seal of the sliding valve flap 301 and flows through the valve body 1; at this time, the sliding valve flap 301 acts as a one-way valve, and when the liquid flows back, the spring outside the sliding column 3 provides a force to close the sliding valve flap 301 to prevent backflow;

[0043] If forced closure is required, Figure 2The threaded valve stem 204 is rotated to push the sliding seat 202 downward, the control touch plug rod 203 is inserted into the positive sliding guide groove 303, the sliding column 3 is pushed forward and fixed, and the sliding valve disc 301 is used to close the valve body 1 during the conveying process to achieve flow interception;

[0044] If reverse flow is required, Figure 3 The trigger lever 5 is manually pushed forward to insert the reverse control rod 501 into the reverse guide groove part 4, so that the reverse guide groove part 4 moves backward, and then the sliding column 3 is pulled open to separate the sliding valve flap 301 from the valve body 1 to ensure that the liquid can flow back, thereby performing reverse pumping and other operations; after releasing the trigger lever 5, the trigger lever 5 is automatically reset by the spring to pull the reverse control rod 501 out of the reverse guide groove part 4 and reset again. Figure 1 status.

Claims

1. A valve disc and valve stem connection structure, characterized in that: include: A valve body (1), wherein a valve control tube (2) is fixedly arranged in the middle of the top of the valve body (1); a guide seat (201) is fixedly arranged at the bottom of the valve control tube (2); a sliding column (3) is slidably arranged in the guide seat (201), a sliding valve flap (301) is fixedly arranged at the rear end of the sliding column (3), the outer periphery of the sliding valve flap (301) is a conical structure and a double-layer sealing ring is fixedly arranged; a reverse guide groove member (4) is fixedly arranged at the rear end of the sliding column (3) through the guide seat (201).

2. The valve flap and valve stem connection structure according to claim 1, characterized in that: A sliding seat (202) is slidably arranged on the inner side of the bottom of the valve control tube (2), and a spring is arranged at the bottom of the sliding seat (202); a control touch plug rod (203) is fixedly arranged at the bottom of the sliding seat (202), and the control touch plug rod (203) passes through the top of the guide seat (201); a threaded valve stem (204) is arranged at the top of the valve control tube (2) through a threaded connection; and a limited expansion opening (205) is fixedly arranged at the front end of the guide seat (201).

3. The valve flap and valve stem connection structure according to claim 2, characterized in that: Two groups of side sliding grooves (302) are provided on both sides of the sliding column (3), and a sliding bar structure matching the side sliding grooves (302) is integrally arranged on both sides of the interior of the guide seat (201); a positive sliding guide groove (303) is provided on the rear side of the sliding column (3), and the positive sliding guide groove (303) is a turning structure that is wide at the top and narrow at the bottom and tilted backwards in the middle; and a spring is provided on the outer sleeve of the sliding column (3).

4. The valve flap and valve stem connection structure according to claim 3, characterized in that: The control touch plug rod (203) can be inserted into the positive sliding guide groove (303), and at this time the sliding valve flap (301) closes the internal channel of the valve body (1).

5. The valve flap and valve stem connection structure according to claim 4, characterized in that: The interior of the reverse guide groove member (4) is a through groove opposite to the forward guide groove (303).

6. The valve flap and valve stem connection structure according to any one of claims 1 to 5, characterized in that: A trigger lever (5) is slidably disposed on the lower rear side of the valve body (1), a spring is disposed outside the trigger lever (5), and a reverse control plug rod (501) is fixedly disposed on the top of the trigger lever (5).

7. The valve flap and valve stem connection structure according to claim 6, characterized in that: The reverse control plug rod (501) can be inserted into the reverse guide groove member (4), and at this time the sliding valve flap (301) does not contact the inner surface of the valve body (1).

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