CN218992429U

CN218992429U - Ball valve convenient to change sealing washer

Info

Publication number: CN218992429U
Application number: CN202223604834.2U
Authority: CN
Inventors: 蒋协林; 窦道群; 窦胜
Original assignee: Shanghai Jingrui Fluid Control Co ltd
Current assignee: Shanghai Jingrui Fluid Control Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-05-09
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to the technical field of ball valves, in particular to a ball valve with a sealing ring convenient to replace, which comprises a water inlet pipe, wherein a water outlet pipe is arranged on one side of the water inlet pipe, and the ball valve is characterized in that: be provided with the valve ball in the outlet pipe, through rotating the knob, and then drive the pivot and rotate, the pivot rotates and can drive the gear to rotate, and then the gear drives and gear engagement's ring gear rotates, the ring gear rotates and can drive the spiro ring and rotate, the spiro ring is under the condition with inlet tube screw thread installation, move to the direction that is close to first sealing washer, and then rely on the tight relation of support of spiro ring lateral wall and first sealing washer, advance first sealing washer and continue to closely laminate with the valve ball, avoid the water leakage that slight wearing and tearing lead to, and need not change first sealing washer this moment, material cost has been saved, the little moisture that oozes in the clearance that has produced between inlet tube and the first sealing washer can be blocked by the third sealing washer in annular position department, can't ooze outside the whole device, a large amount of water resource has been saved.

Description

Ball valve convenient to change sealing washer

Technical Field

The utility model relates to the technical field of ball valves, in particular to a ball valve with a sealing ring convenient to replace.

Background

The ball valve, the opening and closing piece is driven by the valve rod and rotates around the axis of the ball valve. The device can also be used for regulating and controlling fluid, wherein the hard seal V-shaped ball valve has strong shearing force between the V-shaped ball core and the metal valve seat of the hard alloy for surfacing, and is particularly suitable for mediums containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the flow direction switching of the medium on the pipeline, and simultaneously can close any channel to connect the other two channels. The valve should be installed generally horizontally in the pipeline. The ball valve is divided into: pneumatic ball valve, electric ball valve, manual ball valve.

The patent with publication number CN212928832U discloses a ball valve convenient for replacing a sealing ring, which comprises a valve body, wherein a ball valve is arranged in the valve body, a temperature measuring port horizontally extends outwards from the middle part of the valve body at the installation position of the valve ball, the temperature measuring port is provided with a circular cavity, and the circular cavity is matched with a temperature measuring head of a thermometer. According to the ball valve provided by the utility model, the thermometer is placed at the center of the ball valve, the temperature measurement is accurate, the improvement weight is light, the cost is low, and the ball valve is integrally coordinated and attractive and has a market.

The ball valve is reasonably matched with the thermometer, the structure is simple, the cost is low, the thermometer is arranged at the center of the ball valve, the improvement weight is light, the cost is low, the whole ball valve is coordinated and attractive, the ball valve has the advantage of market competition, but the abrasion phenomenon of the sealing ring in the ball valve in the long-term use process is not considered, the slight water leakage condition can occur at the moment, the sealing ring needs to be replaced under the condition of excessive abrasion, the replacement trouble can occur, and the phenomenon of wasting a large amount of manpower and material resources is avoided.

Therefore, the utility model aims to design the ball valve which can solve the problems of slight water leakage caused by abrasion of the sealing ring under the long-term use condition and convenient replacement of the sealing ring when the abrasion is serious.

Disclosure of Invention

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a ball valve convenient to change sealing washer, includes the inlet tube, inlet tube one side is provided with the outlet pipe, be provided with the valve ball in the outlet pipe, the rectangular channel has been seted up at the valve ball top, be provided with the dowel steel with rectangular channel lateral wall laminating in the rectangular channel, dowel steel and outlet pipe outer wall upper surface slidable mounting, dowel steel top is fixed with first screw rod, first screw rod top runs through and extends outlet pipe and screw thread installation have two first nuts, two it has the commentaries on classics handle to press from both sides between the first nut, the below first nut lower surface laminating is provided with the packing ring, the inlet tube sets up with the close lateral wall laminating of outlet pipe, and is connected through second screw rod and second nut. The valve ball both sides laminating is provided with first sealing washer and second sealing washer, first sealing washer is close to the inlet tube.

Specifically, the first sealing ring is close to the side wall of the water inlet pipe and is attached to the side wall of the water inlet pipe.

Specifically, the second sealing ring is close to the lateral wall of valve ball and is laminated with the valve ball, the other lateral wall of second sealing ring and outlet pipe inner wall laminating set up.

Specifically, the lateral wall that inlet tube and outlet pipe are laminated mutually has all offered the ring channel, two the ring channel is just and laminating is provided with a common third sealing washer.

Specifically, the annular groove is formed in the side wall of the water inlet pipe, the spiral ring is installed in the annular groove through internal threads, and the side wall of the spiral ring, which is close to one side of the first sealing ring, is attached to the first sealing ring.

Specifically, be fixed with the ring gear on the lateral wall that the first sealing washer was kept away from to the spiro, the meshing is installed on the ring gear, the gear is located the annular, and coaxial fixed with the pivot, the pivot outer wall rotates installs the slider, the gliding spout of confession slider has been seted up to the inlet tube lateral wall, slider slidable mounting is in the spout.

Specifically, the side wall of the sliding block is fixedly provided with a first spring, one end of the first spring, which is far away from the sliding block, is fixedly connected with the side wall of the sliding groove, and the top of the rotating shaft penetrates through and extends out of the sliding groove and is fixedly provided with a knob.

Specifically, the pressure relief hole has been run through on the inlet tube lateral wall, pressure relief hole bottom articulates there are two buffer boards, two the one end laminating that the buffer board is close to each other sets up, fixed surface has the arc telescopic link on the buffer board, the one end fixed connection that the buffer board was kept away from to the arc telescopic link is on the lateral wall in pressure relief hole, arc telescopic link lateral wall cover is equipped with the second spring, second spring one end is fixed with the buffer board, the second spring other end is fixed with the pressure relief hole lateral wall.

The utility model has the beneficial effects that:

(1) According to the ball valve convenient for replacing the sealing ring, the knob is rotated, the rotating shaft is driven to rotate, the rotating shaft can be driven to rotate, the gear drives the toothed ring meshed with the gear to rotate, the toothed ring rotates to drive the spiral ring to move towards the direction close to the first sealing ring under the condition of being in threaded installation with the water inlet pipe, the first sealing ring is pushed to be tightly attached to the valve ball by means of abutting relation between the side wall of the spiral ring and the first sealing ring, water leakage caused by slight abrasion is avoided, the first sealing ring is not required to be replaced at the moment, material cost is saved, a small amount of water which is generated between the water inlet pipe and the first sealing ring and oozes out of the whole device can not be blocked by the third sealing ring at the position of the annular groove, and a large amount of water resources are saved.

(2) According to the ball valve convenient for replacing the sealing ring, when the water is closed, the water pressure at the water outlet end part of the water inlet pipe can be subjected to transient surge, the first sealing ring is easy to impact, slight bias can be caused at the position of the first sealing ring, and water leakage is caused, the buffer plate is pushed to rotate along the hinge point by the transient surge of the water pressure, the arc-shaped telescopic rod is pushed to shrink, the second spring is in a compressed state, and after the transient surge of the water pressure is relieved, the buffer plate is closed in a return mode under the action of the elastic force of the second spring.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the overall structure of a ball valve with a seal ring convenient to replace;

FIG. 2 is a schematic cross-sectional view of a water outlet pipe of a ball valve, provided by the utility model, for facilitating replacement of a sealing ring;

FIG. 3 is a schematic cross-sectional view of a ball valve inlet pipe for facilitating replacement of a seal ring according to the present utility model;

FIG. 4 is an enlarged schematic view of the ball valve of FIG. 3 at A, which is provided by the utility model and facilitates replacement of the seal ring;

FIG. 5 is an enlarged schematic view of the ball valve of FIG. 4 at B, which is provided by the utility model, for facilitating replacement of the seal ring;

fig. 6 is a schematic view of a ring gear of a ball valve, which is convenient for replacing a sealing ring.

In the figure: 1. a water inlet pipe; 2. a water outlet pipe; 3. a rotating handle; 4. a dowel bar; 5. a first nut; 6. a gasket; 7. a first screw; 8. a valve ball; 9. a first seal ring; 10. a second seal ring; 11. a third seal ring; 12. a spiro ring; 13. a toothed ring; 14. a gear; 15. a rotating shaft; 16. a knob; 17. a first spring; 18. a buffer plate; 19. an arc-shaped telescopic rod; 20. a second spring; 21. a second screw; 22. a second nut; 23. a sliding block.

Detailed Description

The utility model is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1-6, the ball valve convenient for replacing a sealing ring comprises a water inlet pipe 1, wherein a water outlet pipe 2 is arranged on one side of the water inlet pipe 1, a valve ball 8 is arranged in the water outlet pipe 2, a rectangular groove is formed in the top of the valve ball 8, a dowel bar 4 attached to the side wall of the rectangular groove is arranged in the rectangular groove, the dowel bar 4 is slidably mounted on the upper surface of the outer wall of the water outlet pipe 2, a first screw rod 7 is fixed on the top of the dowel bar 4, two first nuts 5 extend through the water outlet pipe 2 from the top end of the first screw rod 7 and are in threaded mounting, a rotating handle 3 is clamped between the two first nuts 5, a gasket 6 is attached to the lower surface of the first nut 5 below, and the side wall of the water inlet pipe 1, which is close to the water outlet pipe 2, is attached to the side wall of the water outlet pipe 2, is connected through a second screw rod 21 and a second nut 22. The valve ball 8 both sides laminating is provided with first sealing washer 9 and second sealing washer 10, first sealing washer 9 is close to inlet tube 1.

The screw thread installation setting of inlet tube 1 and outlet pipe 2 can make things convenient for the dismouting between the combination, and first sealing washer 9 is in most critical sealing position, and long-term wearing and tearing need be changed, and first sealing washer 9 position setting can make things convenient for the change of first sealing washer 9 in valve ball 8 both sides.

Specifically, the first sealing ring 9 is close to the side wall of the water inlet pipe 1 and is attached to the side wall of the water inlet pipe 1.

The lateral wall of first sealing washer 9 and the laminating of inlet tube 1 lateral wall set up can prevent that water from oozing from the clearance between inlet tube 1 and the first sealing washer 9, and then avoid causing the waste of water resource.

Specifically, the second sealing ring 10 is close to the side wall of the valve ball 8 and is attached to the valve ball 8, and the other side wall of the second sealing ring 10 is attached to the inner wall of the water outlet pipe 2.

Specifically, annular grooves are formed in the side walls, attached to the water inlet pipe 1 and the water outlet pipe 2, of the two annular grooves are opposite to each other and are attached to each other, and a third sealing ring 11 is arranged on the annular grooves.

After the position of the spiral ring 12 is adjusted in the later period, the situation of a village smile gap between the first sealing ring 9 and the side wall of the water inlet pipe 1 exists, so that a small amount of water can infiltrate into the gap, the third sealing ring 11 attached to the annular groove can prevent a small amount of exuded water from flowing out of the whole device, and water resources are saved.

Specifically, the lateral wall of the water inlet pipe 1 is provided with a ring groove, a spiral ring 12 is arranged in the ring groove in a threaded manner, and the lateral wall of the spiral ring 12, which is close to one side of the first sealing ring 9, is attached to the first sealing ring 9.

Specifically, the side wall of the spiral ring 12 far away from the first sealing ring 9 is fixedly provided with a toothed ring 13, the toothed ring 13 is provided with a gear 14 in a meshed manner, the gear 14 is positioned in the annular groove and is coaxially fixedly provided with a rotating shaft 15, the outer wall of the rotating shaft 15 is rotatably provided with a sliding block 23, the side wall of the water inlet pipe 1 is provided with a sliding groove for the sliding block 23 to slide, and the sliding block 23 is slidably arranged in the sliding groove.

Specifically, the side wall of the sliding block 23 is fixedly provided with a first spring 17, one end of the first spring 17, which is far away from the sliding block 23, is fixedly connected with the side wall of the sliding groove, and the top of the rotating shaft 15 extends out of the sliding groove in a penetrating way and is fixedly provided with a knob 16.

The knob 16 is rotated, and then the rotating shaft 15 is driven to rotate, the rotating shaft 15 rotates to drive the gear 14 to rotate, and then the gear 14 drives the toothed ring 13 meshed with the gear 14 to rotate, the toothed ring 13 rotates to drive the spiral ring 12 to rotate, the spiral ring 12 moves towards the direction close to the first sealing ring 9 under the condition of being in threaded installation with the water inlet pipe 1, and then the first sealing ring 9 is pushed to be in close fit with the valve ball 8 by means of abutting relationship between the side wall of the spiral ring 12 and the first sealing ring 9, water leakage caused by slight abrasion is avoided, the first sealing ring 9 does not need to be replaced at the moment, the first spring 17 can push the sliding block 23 to move, and then the rotating shaft 15 and the gear 14 fixedly connected with the rotating shaft 15 are driven to move, so that the gear 14 and the toothed ring 13 are always in a meshed state.

Specifically, the pressure relief hole has been run through on the inlet tube 1 lateral wall, pressure relief hole bottom articulates there are two buffer boards 18, two the one end laminating that buffer board 18 is close to each other sets up, buffer board 18 upper surface is fixed with arc telescopic link 19, the one end fixed connection that the buffer board 18 was kept away from to arc telescopic link 19 is on the lateral wall in pressure relief hole, arc telescopic link 19 lateral wall cover is equipped with second spring 20, second spring 20 one end is fixed with buffer board 18, the second spring 20 other end is fixed with the pressure relief hole lateral wall.

When closing the water drainage, the water pressure of the water outlet end of the water inlet pipe 1 can appear transient surge phenomenon, and is easy to cause impact to the first sealing ring 9, and then can lead to slight bias to the position of the first sealing ring 9, and then the phenomenon that leads to leaking takes place, and this novel well water pressure surge can promote the buffer plate 18 and rotate along the pin joint, and then promotes the shrink of arc telescopic link 19, and the second spring 20 is in compression state this moment, alleviates after transient water pressure surge phenomenon, the buffer plate 18 is closed at the return stroke under the elasticity effect of the second spring 20.

Working principle: when needing to carry out the operation of draining, rotate the twist grip 3, the twist grip 3 drives two first nuts 5 and rotates together under the centre gripping of two first nuts 5, and then drive the first screw rod 7 of chucking and rotate, and then first screw rod 7 drives fixed connection's dowel bar 4 and rotates, dowel bar 4 rotates and applys pressure to valve ball 8's rectangular slot lateral wall and then drive valve ball 8 and rotate, make valve ball 8's play water through-hole just to inlet tube 1 and outlet pipe 2, realize out the operation and rotate the twist grip 3 and can drive valve ball 8 return stroke, and then close and drain, the water end water pressure of inlet tube 1 can appear transient surge phenomenon this moment, lead to the impact to first sealing washer 9 easily, and then can lead to the 9 positions of first sealing washer to appear slight bias, and then the phenomenon emergence that leads to leaking, this novel well water pressure surge can promote buffer plate 18 along the pin joint rotation, and then promote the shrink of arc telescopic link 19, second spring 20 is in compressed state this moment, after the transient surge phenomenon, buffer plate 18 is closed under the elasticity effect of second spring 20.

It should be mentioned that, the knob 16 can be rotated when the first sealing ring 9 is slightly worn for a long time, and then the rotating shaft 15 is driven to rotate, the rotating shaft 15 rotates to drive the gear 14 to rotate, and then the gear 14 drives the toothed ring 13 meshed with the gear 14 to rotate, the toothed ring 13 rotates to drive the spiral ring 12 to rotate, the spiral ring 12 moves towards the direction close to the first sealing ring 9 under the condition of being in threaded installation with the water inlet pipe 1, and then the first sealing ring 9 is pushed to be tightly attached to the valve ball 8 by means of the abutting relation between the side wall of the spiral ring 12 and the first sealing ring 9, so that water leakage caused by slight wear is avoided, and at the moment, the first sealing ring 9 does not need to be replaced, the material cost is saved, a small amount of water seeping out from a small amount of gaps generated between the water inlet pipe 1 and the first sealing ring 9 can be blocked by the third sealing ring 11 at the ring groove position, the whole device cannot be seeped out, and a large amount of water resource is saved.

When the first sealing ring 9 needs to be replaced, only the second nut 22 needs to be unscrewed, so that the adhesion between the water inlet pipe 1 and the water outlet pipe 2 is relieved, the first sealing ring 9 can be easily taken out, and the replacement of the completely ground first sealing ring 9 is facilitated.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a ball valve convenient to change sealing washer, includes inlet tube (1), inlet tube (1) one side is provided with outlet pipe (2), its characterized in that: be provided with valve ball (8) in outlet pipe (2), rectangular slot has been seted up at valve ball (8) top, be provided with dowel steel (4) with rectangular slot lateral wall laminating in the rectangular slot, dowel steel (4) and outlet pipe (2) outer wall upper surface slidable mounting, dowel steel (4) top is fixed with first screw rod (7), first screw rod (7) top runs through and extends outlet pipe (2) and screw thread installation have two first nuts (5), two clamp between first nut (5) and hold revolving handle (3), the below first nut (5) lower surface laminating is provided with packing ring (6), inlet tube (1) and outlet pipe (2) similar lateral wall laminating sets up, and is connected through second screw rod (21) and second nut (22), valve ball (8) both sides laminating is provided with first sealing washer (9) and second sealing washer (10), first sealing washer (9) are close to inlet tube (1).

2. The ball valve for facilitating replacement of a seal ring of claim 1, wherein: the side wall of the first sealing ring (9) close to the water inlet pipe (1) is attached to the side wall of the water inlet pipe (1).

3. The ball valve for facilitating replacement of a seal ring of claim 1, wherein: the side wall of the second sealing ring (10) close to the valve ball (8) is attached to the valve ball (8), and the other side wall of the second sealing ring (10) is attached to the inner wall of the water outlet pipe (2).

4. The ball valve for facilitating replacement of a seal ring of claim 1, wherein: annular grooves are formed in the side walls, attached to the water inlet pipe (1) and the water outlet pipe (2), of the water inlet pipe, and a third sealing ring (11) is arranged opposite to and attached to the two annular grooves.

5. The ball valve for facilitating replacement of a seal ring of claim 1, wherein: the water inlet pipe is characterized in that an annular groove is formed in the side wall of the water inlet pipe (1), a spiral ring (12) is installed in the annular groove through threads, and the side wall, close to one side of the first sealing ring (9), of the spiral ring (12) is attached to the first sealing ring (9).

6. The ball valve for facilitating replacement of a seal ring of claim 5, wherein: the novel water inlet pipe is characterized in that a toothed ring (13) is fixed on the side wall of the spiral ring (12) away from the first sealing ring (9), a gear (14) is installed on the toothed ring (13) in a meshed mode, the gear (14) is located in the annular groove, a rotating shaft (15) is coaxially fixed, a sliding block (23) is installed on the outer wall of the rotating shaft (15) in a rotating mode, a sliding groove for the sliding block (23) to slide is formed in the side wall of the water inlet pipe (1), and the sliding block (23) is installed in the sliding groove in a sliding mode.

7. The ball valve for facilitating replacement of a seal ring of claim 6, wherein: the sliding block is characterized in that a first spring (17) is fixedly arranged on the side wall of the sliding block (23), one end, far away from the sliding block (23), of the first spring (17) is fixedly connected with the side wall of the sliding groove, and the top of the rotating shaft (15) penetrates through and extends out of the sliding groove and is fixedly provided with a knob (16).

8. The ball valve for facilitating replacement of a seal ring of claim 1, wherein: the utility model discloses a pressure relief hole has been offered in running through on inlet tube (1) lateral wall, pressure relief hole bottom articulates there are two buffer board (18), two the one end laminating that buffer board (18) are close to each other sets up, fixed surface has arc telescopic link (19) on buffer board (18), the one end fixed connection that buffer board (18) was kept away from to arc telescopic link (19) is on the lateral wall in pressure relief hole, arc telescopic link (19) lateral wall cover is equipped with second spring (20), second spring (20) one end is fixed with buffer board (18), the second spring (20) other end is fixed with the pressure relief hole lateral wall.