Ball valve structure with bidirectional flow guide and backflow prevention functions

Abstract

The utility model relates to the technical field of valves, in particular to a ball valve structure with bidirectional flow guide and backflow prevention functions, which comprises a first valve body, a second valve body and a valve frame, the first valve body is in threaded connection with the second valve body, the valve frame is slidably connected with the inner wall of the second valve body, one end of the second valve body is provided with a slide way, and the outer wall of the valve frame is fixedly connected with a slide rod. The sliding rod is slidably connected with the inner wall of the slideway. Compared with the prior art, the sliding way, the sliding rod, the limiting assembly, the adjusting assembly and the clamping assembly are arranged, the sliding rod with a valve frame is inserted into the sliding way, a pushing rod is inserted into a pushing groove, the valve frame is fixed through the limiting assembly, and therefore the valve frame can be conveniently mounted and dismounted; the two-way flow guide and anti-backflow functions of the ball valve can be adjusted, and the sliding sleeve and the threaded ring can be limited through the clamping assembly, so that the technical problem that the sliding sleeve and the threaded ring rotate under the impact of water flow is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a ball valve structure with bidirectional flow guiding and anti -reverse flow function. BACKGROUND

[0002] Ball valve, open and close (ball) by the stem drive, and around the ball valve axis rotation movement valve. Also can be used for the adjustment and control of fluid, wherein hard sealing V type ball valve its V type ball core and the metal valve seat of hard alloy of surfacing has very strong shearing force, especially suitable for containing fibre, small solid particle etc. Medium. And multi -way ball valve not only can be flexible control medium on the pipeline convergence, shunt and flow direction switch, simultaneously also can close any channel and make another two channels connect. The valve in the pipeline generally should be installed horizontally. Ball valve is divided into: pneumatic ball valve, electric ball valve, hand-operated ball valve according to drive mode.

[0003] The prior art with publication number CN221034130U discloses a check ball valve, comprising: a first valve body, a valve stem, a valve ball, a valve seat, a second valve body, a check valve core and a valve holder; the first valve body is threadedly connected with the second valve body; the valve seat is arranged in the valve cavity of the first valve body, and the valve ball is arranged in the valve seat; the valve stem is connected to the valve ball and fixedly connected with a handle; the valve holder is fixedly arranged in the valve cavity of the second valve body, a sliding hole is arranged in the middle of the valve holder, and a liquid passage is arranged in the edge of the sliding hole of the valve holder; a check block and a plug are sequentially connected to one end of a sliding rod, the diameter of the check block is greater than the diameter of the sliding hole, and the other end of the sliding rod is slidingly arranged in the sliding hole; the port diameter of the second valve body corresponding to one end of the plug is smaller than the diameter of the plug; a limiting block includes a limiting ring and a locking structure, the limiting ring is slidingly sleeved on the side surface of the other end of the sliding rod, and the locking structure is connected to the limiting ring. The application achieves the technical effect that the check ball valve can be used for one-way flow and controlled for two-way flow.

[0004] Through the above arrangement, the ball valve of the prior art limits the stroke of the sliding rod by arranging the limiting block. When only one-way flow of the check ball valve is needed, the limiting block can be detached from the sliding rod, so that the plug can block the valve port. When two-way flow of the check ball valve is needed, the limiting block is installed on the other end of the sliding rod, so that the sliding distance of the sliding rod is reduced, so that the plug cannot block the valve port, thereby realizing the two-way flow function of the check ball valve. Thus, the application achieves the technical effect that the check ball valve can be used for one-way flow and controlled for two-way flow.

[0005] The prior art scheme is that when the rubber head and the check block need to be disassembled, the valve frame is rotated to make the valve frame separate from the second valve body, but the valve frame is inside the second valve body, the valve frame needs to be disassembled by inserting the hand into the second valve body, the valve frame is not easy to be rotated due to long-time threaded connection with the second valve body, workers are very difficult and inconvenient when disassembling the valve frame, and it is also inconvenient to quickly disassemble and replace the rubber head and the check block. Practical new type content

[0006] The utility model intends to provide a ball valve structure with bidirectional flow guiding and anti-backflow functions, mainly used to solve the technical problem that the valve frame is fixed inside the second valve body, and the valve frame is not easy to be rotated due to long-time threaded connection with the second valve body, so that the valve frame is very difficult to disassemble, and it is inconvenient to quickly disassemble the rubber head and the check block.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A ball valve structure with bidirectional flow guiding and anti-backflow functions, comprising a first valve body, a second valve body and a valve frame, the first valve body is threadedly connected with the second valve body, the valve frame is slidingly connected to the inner wall of the second valve body, one end of the second valve body is provided with a slide way, the outer wall of the valve frame is fixedly connected with a slide rod, the slide rod is slidingly connected to the inner wall of the slide way, the outer wall of the slide rod is provided with a movable slot, the inner wall of the movable slot is provided with a limiting assembly, one side of the valve frame is provided with a slide hole, the inner wall of the slide hole is slidingly connected with a connecting rod, one end of the connecting rod is fixedly connected with a rubber head, the other end of the connecting rod is provided with an adjusting assembly.

[0009] The working principle and beneficial effects of the utility model are as follows:

[0010] 1. Working principle: when the ball valve needs to be used, first, the second valve body is threadedly connected with the first valve body, then the slide rod with the valve frame is inserted into the slide way, the guide rod is inserted into the guide slot, the push rod is inserted into the push slot by abutting against the push plate, the valve frame is fixed by the limiting assembly, then the clamping assembly and the adjusting assembly are adjusted according to the needs, so that the bidirectional flow guiding and anti-backflow functions can be realized.

[0011] 2. Beneficial effects:

[0012] The prior art sets a limiting block, so that the limiting block can limit the stroke of the slide rod. When only one-way flow of the check ball valve is needed, the limiting block can be removed from the slide rod, so that the plug can block the valve port. When two-way flow of the check ball valve is needed, the limiting block is installed on the other end of the slide rod, so that the sliding distance of the slide rod is reduced, so that the plug cannot block the valve port, thereby realizing the two-way flow function of the check ball valve. Thus, the technical problem of achieving the technical effect of one-way flow of the check ball valve and controlling two-way flow of the check ball valve is solved. However, when the rubber head and the check block need to be disassembled, the valve frame is rotated to make the valve frame separate from the second valve body. However, the valve frame is inside the second valve body, so the valve frame needs to be disassembled by inserting the hand into the second valve body. The valve frame is threadedly connected to the second valve body for a long time, so the valve frame is not easy to be rotated, and the worker is very difficult and inconvenient when disassembling the valve frame. It is also not convenient to quickly disassemble and replace the rubber head and the check block. The scheme sets a sliding channel, a slide rod, a limiting assembly, an adjusting assembly and a clamping assembly. The slide rod with the valve frame is inserted into the sliding channel, and the push rod is inserted into the push groove. The valve frame is fixed by the limiting assembly, so that the valve frame can be conveniently installed and disassembled. The two-way flow and anti-backflow functions of the ball valve can be adjusted by the adjusting assembly. The slide sleeve and the threaded ring can be limited by the clamping assembly, so that they will not rotate under the impact of water flow.

[0013] Preferably, the limiting assembly comprises a limiting rod, the limiting rod is slidably connected to the inner wall of the movable groove, the inner wall of the movable groove is fixedly connected with a limiting spring, the other end of the limiting spring is fixedly connected with one end of the limiting rod, the inner wall of the sliding channel is provided with a limiting slot, the other end of the limiting rod is inserted into the limiting slot, the inner wall of the limiting slot is slidably connected with a sliding disc, the sliding disc abuts against the limiting rod, the other side of the sliding disc is fixedly connected with a push rod, and the push rod penetrates through the second valve body and is slidably connected with the second valve body. By setting the limiting assembly, the valve frame can be quickly fixed, and by pressing the pressing plate, the valve frame can be quickly disassembled.

[0014] Preferably, the adjusting assembly comprises a connecting plate, one end of the connecting plate is fixedly connected with a connecting rod, the outer wall of the end of the connecting rod away from the rubber head is threadedly connected with a threaded ring, one side of the threaded ring is fixedly connected with a slide sleeve, the connecting plate is slidably connected to the inner wall of the slide sleeve, the end of the slide sleeve away from the threaded ring is fixedly connected with a handle, the outer wall of the connecting plate is provided with a plurality of supporting grooves, and the supporting grooves are provided with clamping assemblies. By setting the adjusting assembly, when the two-way flow function is needed, the handle is rotated, so that the slide sleeve abuts against the connecting plate, and one side of the threaded ring abuts against one side of the valve frame. At this time, the two-way flow function is realized. When one-way and anti-backflow are needed, only one side of the threaded ring abuts against the valve frame, and the other side of the threaded ring is away from the valve frame, so that the one-way flow and anti-backflow functions are realized.

[0015] Preferably, the clamping assembly comprises a clamping spring fixedly connected inside the supporting groove, one end of the clamping spring is fixedly connected with a ball, the ball is slidably connected with the inner wall of the supporting groove, the inner wall of the sliding sleeve is provided with symmetrical clamping grooves, and the ball is clamped in the clamping grooves. By arranging the clamping assembly, the ball is pushed into the clamping groove by the clamping spring, and the threaded ring and the sliding sleeve are limited from rotating under the action of water flow.

[0016] Preferably, one end of the second valve body is provided with a guide groove, a guide rod is slidably connected with the inner wall of the guide groove, the outer wall of the valve frame is fixedly connected with the guide rod, the inner wall of the guide groove is provided with a pushing groove, a compression spring is fixedly connected with the inner wall of the pushing groove, one end of the compression spring is fixedly connected with a pushing plate, the pushing plate is slidably connected with the pushing groove, one end of the guide rod is fixedly connected with a pushing rod, and the pushing rod is inserted into the pushing groove. By arranging the guide rod, the valve frame can be guided; by arranging the compression spring and the pushing rod, when the valve frame is disassembled, the compression spring pushes the pushing rod to drive the valve frame to move a distance, so that the valve frame can be pulled out of the second valve body conveniently.

[0017] Preferably, the clamping grooves are provided in two groups, the number of each group of clamping grooves is the same as the number of balls, and the clamping grooves are matched with the balls. The clamping grooves on the left side of the sliding sleeve are used for controlling the bidirectional flow guiding function of the ball valve, and the clamping grooves on the right side of the sliding sleeve are used for controlling the anti-backflow function of the ball valve, so that the adjustment is more convenient and free.

[0018] Preferably, the outer wall of the second valve body is provided with a pressing groove, a pressing plate is slidably connected with the inner wall of the pressing groove, and one end of the pressing plate is fixedly connected with the pushing rod. By arranging the pressing groove and the pressing plate, the pushing rod can be moved conveniently, and the pressing plate can also prevent the pushing rod from entering the limiting groove, thereby limiting the pushing rod.

[0019] Preferably, a first sealing gasket is fixedly connected with the side of the guide rod in contact with the guide groove. The guide rod and the guide groove are sealed.

[0020] Preferably, a second sealing gasket is fixedly connected with the side of the sliding disc in contact with the limiting groove. The sliding disc and the limiting groove are sealed, so that water leakage is avoided.

[0021] Preferably, the limiting spring, the clamping spring and the compression spring are all made of stainless steel. Rusting is reduced, and the service life is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure diagram of the utility model patent;

[0023] Figure 2 It is an internal cross-sectional structure diagram of the utility model patent;

[0024] Figure 3The side sectional view structure diagram of the utility model patent;

[0025] Figure 4 The Figure 2 structure diagram of A in the middle;

[0026] Figure 5 The Figure 2 structure diagram of B in the middle.

[0027] Figure 6 The Figure 2 structure diagram of C in the middle.

[0028] Figure 7 The Figure 3 structure diagram of D in the middle.

[0029] The reference signs in the drawings of the specification include: 1, first valve body; 2, second valve body; 3, valve frame; 4, slide; 5, slide rod; 6, movable groove; 7, limiting rod; 8, limiting spring; 9, limiting groove; 10, sliding disc; 11, push rod; 12, sliding hole; 13, connecting rod; 14, rubber head; 15, connecting plate; 16, threaded ring; 17, sliding sleeve; 18, handle; 19, supporting groove; 20, clamping spring; 21, ball; 22, clamping groove; 23, guide groove; 24, guide rod; 25, pushing groove; 26, compression spring; 27, pushing plate; 28, pushing rod; 29, pressing groove; 30, pressing plate; 31, first sealing gasket; 32, second sealing gasket. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, a ball valve structure with bidirectional flow guidance and anti-backflow function includes a first valve body 1, a second valve body 2, and a valve frame 3. The first valve body 1 and the second valve body 2 are threaded together. The valve frame 3 is slidably connected to the inner wall of the second valve body 2. A slide rail 4 is provided at one end of the second valve body 2. A slide rod 5 is fixedly connected to the outer wall of the valve frame 3. The slide rod 5 is slidably connected to the inner wall of the slide rail 4. A movable groove 6 is provided on the outer wall of the slide rod 5. A limit component is installed on the inner wall of the movable groove 6. The limit component includes a limit rod 7, which is slidably connected to the inner wall of the movable groove 6. A limit spring is fixedly connected to the inner wall of the movable groove 6. 8. The other end of the limiting spring 8 is fixedly connected to one end of the limiting rod 7. A limiting groove 9 is opened on the inner wall of the slide 4. The other end of the limiting rod 7 is inserted into the limiting groove 9. A sliding plate 10 is slidably connected to the inner wall of the limiting groove 9. A second sealing gasket 32 ​​is fixedly connected to the side of the sliding plate 10 that abuts against the limiting groove 9. The sliding plate 10 abuts against the limiting rod 7. A push rod 11 is fixedly connected to the other side of the sliding plate 10. The push rod 11 passes through the second valve body 2 and is slidably connected to it. A pressing groove 29 is opened on the outer wall of the second valve body 2. A pressing plate 30 is slidably connected to the inner wall of the pressing groove 29. The pressing plate 30 is fixedly connected to one end of the push rod 11. A sliding hole 12 is provided through one side of the valve frame 3. A connecting rod 13 is slidably connected to the inner wall of the sliding hole 12. A rubber head 14 is fixed to one end of the connecting rod 13, and an adjusting assembly is installed at the other end of the connecting rod 13. The adjusting assembly includes a connecting plate 15, which is fixed to one end of the connecting rod 13. A threaded ring 16 is threaded to the outer wall of the end of the connecting rod 13 away from the rubber head 14. A sliding sleeve 17 is fixed to one side of the threaded ring 16. The connecting plate 15 is slidably connected to the inner wall of the sliding sleeve 17. A handle 18 is fixed to the end of the sliding sleeve 17 away from the threaded ring 16. The outer wall has multiple support grooves 19, and the inner wall of the support groove 19 is equipped with a snap-fit ​​assembly. The snap-fit ​​assembly includes a snap-fit ​​spring 20, which is fixedly connected inside the support groove 19. The other end of the snap-fit ​​spring 20 is fixedly connected to a ball 21, which is made of stainless steel. The ball 21 is slidably connected to the inner wall of the support groove 19. The inner wall of the sliding sleeve 17 has symmetrical snap-fit ​​grooves 22, and the ball 21 snaps into the snap-fit ​​grooves 22. There are two sets of snap-fit ​​grooves 22, and the number of each set of snap-fit ​​grooves 22 is the same as the number of balls 21. The snap-fit ​​grooves 22 match the balls 21.

[0032] like Figure 2 and Figure 6 As shown, a guide groove 23 is provided at one end of the second valve body 2. A guide rod 24 is slidably connected to the inner wall of the guide groove 23. A first sealing gasket 31 is fixedly connected to the side of the guide rod 24 that contacts the guide groove 23. The guide rod 24 is fixedly connected to the outer wall of the valve frame 3. A push groove 25 is provided on the inner wall of the guide groove 23. A compression spring 26 is fixedly connected to the inner wall of the push groove 25. A push plate 27 is fixedly connected to the other end of the compression spring 26. The push plate 27 is slidably connected to the push groove 25. A push rod 28 is fixedly connected to one end of the guide rod 24. The push rod 28 is inserted into the push groove 25.

[0033] From the above, the specific implementation manner of the utility model is as follows:

[0034] When the ball valve needs to be used, first, the second valve body 2 is screwed with the first valve body 1, then the slide rod 5 with the valve holder 3 is inserted into the slide 4, and the guide rod 24 is inserted into the guide groove 23, so that the push rod 28 is against the push plate 27 and is inserted into the push groove 25, at this time, the limiting rod 7 is pushed in the movable groove 6 under the action of the elastic force of the limiting spring 8, and is inserted into the limiting groove 9, so that the limiting rod 7 is against the sliding disc 10, and the sliding disc 10 and the push rod 11 are pushed, so that the push rod 11 pushes the pressing plate 30 to slide in the pressing groove 29, and the fixing of the valve holder 3 is completed, when the bidirectional flow guiding function of the ball valve needs to be realized, the handle 18 at both ends is rotated, so that the handle 18 drives the sliding sleeve 17 to rotate, the sliding sleeve 17 drives the threaded ring 16 to rotate, so that the threaded ring 16 is screwed with the connecting rod 13, at this time, the clamping spring 20 in the clamping groove 22 is pushed, so that the ball 21 extrudes the clamping spring 20, and the ball 21 is received into the supporting groove 19, when one side of the threaded ring 16 is against the valve holder 3, the ball 21 moves to the other group of clamping grooves 22, and the ball 21 is clamped with the clamping groove 22 by the elastic force of the clamping spring 20, so that the sliding sleeve 17 and the threaded ring 16 are fixed, then the bidirectional flow guiding can be carried out, when the anti-backflow function needs to be realized, the handle 18 on one side is adjusted, so that one side of the threaded ring 16 is against the valve holder 3, then the handle 18 on the other side is adjusted, so that the threaded ring 16 is away from the valve holder 3, at this time, the anti-backflow function can be realized, the water flow enters from the side where the threaded ring 16 is against the valve holder 3, and then flows out from the other side, when the water flow backflows, the water flow pushes the rubber head 14 to drive the connecting rod 13 to move, so that the connecting rod 13 slides in the sliding hole 12, so that the rubber head 14 moves to the left and blocks the valve port, and the use is completed.

[0035] The above is only the embodiment of the utility model, and the specific structure and characteristics of the scheme and other common knowledge are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, a number of deformations and improvements can be made, which should also be regarded as the protection range of the utility model, and these will not affect the effect and practicality of the utility model. The protection range claimed in the application should be subject to the content of the claims, and the specific implementation manner and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A ball valve structure with bidirectional flow guiding and anti-backflow function, comprising a first valve body (1), a second valve body (2) and a valve frame (3), characterized in that, The first valve body (1) is threadedly connected with the second valve body (2), the valve frame (3) is slidably connected with the inner wall of the second valve body (2), the second valve body (2) is provided with a sliding channel (4) at one end, the outer wall of the valve frame (3) is fixedly connected with a sliding rod (5), the sliding rod (5) is slidably connected with the inner wall of the sliding channel (4), the outer wall of the sliding rod (5) is provided with a movable slot (6), the inner wall of the movable slot (6) is provided with a limiting assembly, one side of the valve frame (3) is provided with a sliding hole (12), the inner wall of the sliding hole (12) is slidably connected with a connecting rod (13), one end of the connecting rod (13) is fixedly connected with a rubber head (14), the other end of the connecting rod (13) is provided with an adjusting assembly.

2. The ball valve structure with bidirectional flow guiding and anti-backflow function according to claim 1, characterized in that: The limiting assembly comprises a limiting rod (7), the limiting rod (7) is slidably connected with the inner wall of the movable slot (6), the inner wall of the movable slot (6) is fixedly connected with a limiting spring (8), one end of the limiting spring (8) is fixedly connected with the limiting rod (7), the inner wall of the sliding channel (4) is provided with a limiting slot (9), the other end of the limiting rod (7) is inserted into the limiting slot (9), the inner wall of the limiting slot (9) is slidably connected with a sliding disc (10), the sliding disc (10) is in abutment with the limiting rod (7), the other side of the sliding disc (10) is fixedly connected with a push rod (11), the push rod (11) passes through the second valve body (2) and is slidably connected with the second valve body (2).

3. The ball valve structure with bidirectional flow guiding and anti-backflow function according to claim 1, characterized in that: The adjusting assembly comprises a connecting plate (15), the connecting plate (15) is fixedly connected with one end of the connecting rod (13), the outer wall of the other end of the connecting rod (13) away from the rubber head (14) is threadedly connected with a threaded ring (16), one side of the threaded ring (16) is fixedly connected with a sliding sleeve (17), the connecting plate (15) is slidably connected with the inner wall of the sliding sleeve (17), the other end of the sliding sleeve (17) away from the threaded ring (16) is fixedly connected with a handle (18), the outer wall of the connecting plate (15) is provided with a plurality of supporting grooves (19), the inner wall of the supporting grooves (19) is provided with a clamping assembly.

4. The ball valve structure with the bidirectional flow guiding and anti-backflow function according to claim 3, characterized in that: The clamping assembly comprises a clamping spring (20), the clamping spring (20) is fixedly connected with the inner wall of the supporting groove (19), the other end of the clamping spring (20) is fixedly connected with a ball (21), the ball (21) is slidably connected with the inner wall of the supporting groove (19), the inner wall of the sliding sleeve (17) is provided with symmetrical clamping grooves (22), the ball (21) is clamped with the clamping grooves (22).

5. The ball valve structure with bidirectional flow guiding and anti-backflow function according to claim 1, characterized in that: One end of the second valve body (2) is provided with a guide slot (23), the inner wall of the guide slot (23) is slidably connected with a guide rod (24), the outer wall of the valve frame (3) is fixedly connected with the guide rod (24), the inner wall of the guide slot (23) is provided with a pushing groove (25), the inner wall of the pushing groove (25) is fixedly connected with a compression spring (26), the other end of the compression spring (26) is fixedly connected with a pushing plate (27), the pushing plate (27) is slidably connected with the pushing groove (25), one end of the guide rod (24) is fixedly connected with a pushing rod (28), the pushing rod (28) is inserted into the pushing groove (25).

6. The ball valve structure with the bidirectional flow guiding and anti-backflow function according to claim 4, characterized in that: The clamping grooves (22) are provided with two groups, and the number of each group of the clamping grooves (22) is the same as the number of the balls (21), and the clamping grooves (22) are matched with the balls (21).

7. The ball valve structure with bidirectional flow guiding and anti-backflow function according to claim 1, characterized in that: The outer wall of the second valve body (2) is provided with a pressing groove (29), and the inner wall of the pressing groove (29) is slidably connected with a pressing plate (30), and one end of the pressing plate (30) is fixedly connected with the push rod (11).

8. The ball valve structure with the bidirectional flow guiding and anti-backflow function according to claim 5, characterized in that: The first sealing gasket (31) is fixedly connected to one side of the guide rod (24) in contact with the guide groove (23).

9. The ball valve structure with the bidirectional flow guiding and anti-backflow function according to claim 2, characterized in that: The second sealing gasket (32) is fixedly connected to one side of the sliding disc (10) in contact with the limiting groove (9).

10. The ball valve structure with bidirectional flow guiding and anti-backflow function according to claim 2, characterized in that: The limiting spring (8), the clamping spring (20) and the compression spring (26) are all made of stainless steel.

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