Leak-proof valve device

Abstract

The utility model provides a leakproof valve device, which belongs to the technical field of valves, and comprises a first pipeline and a second pipeline, a leakproof mechanism is arranged between the first pipeline and the second pipeline, the leakproof mechanism comprises a box body, a sliding cavity is arranged in the box body, a top column slides in the sliding cavity, and the bottom of the top column is connected with a push plate. A first spring is connected between the push plate and the box body, the top of the top column is connected with a baffle, the top of the baffle is connected with an extension rod, the top of the extension rod is connected with an upper fixing block, a lower sliding block slides on the extension rod, and the box body is provided with a first sliding groove and a second sliding groove. A second spring and a third spring are connected between the first sliding block and the first sliding groove and between the second sliding block and the second sliding groove. The problems that after leakage happens to an existing water supply valve, a valve rod needs to be manually screwed, time and labor are wasted, practicability is low, workers cannot see the interior, the valve rod can be damaged due to excessive rotation, the sealing effect is reduced, and limitation exists are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a leakage-proof valve device. Background Art

[0002] Water supply valves are commonly used in domestic water supply, fire protection systems and industrial water supply systems. They are used to control flow, water level, etc., and have functions such as cutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow pressure relief.

[0003] The existing CN216343945U discloses a leak-proof water supply valve, comprising a water supply valve body, one end of which is connected to a main water inlet pipe, the other end of which is fixedly connected to a main water outlet pipe, the water supply valve body comprising a control main valve, the water supply valve body comprising a normally open leakage remedial valve, one end of which is fixedly connected to an anti-leakage flange mechanism;

[0004] When this water supply valve is in use, if a leak occurs, the valve stem needs to be manually twisted until the valve disc contacts the sealing base, which is time-consuming and labor-intensive and not very practical. At the same time, the staff cannot see the internal sealing conditions, and the valve stem may be damaged due to excessive rotation, resulting in damage to the valve disc and the sealing base, which greatly reduces the sealing effect and has great limitations. Summary of the invention

[0005] The utility model provides a leakage-proof valve device, which aims to solve the problem that when the existing water supply valve is in use, when a leak occurs, the valve stem needs to be manually twisted until the valve disc contacts the sealing base, which is time-consuming and labor-intensive and has low practicality. At the same time, the staff cannot see the internal sealing condition, and the valve stem may be damaged due to excessive rotation, resulting in damage to the valve disc and the sealing base, which greatly reduces the sealing effect and has great limitations.

[0006] The utility model embodiment provides a leakage-proof valve device, including a first pipeline and a second pipeline, an leakage-proof mechanism is installed between the first pipeline and the second pipeline, the first pipeline and the second pipeline are connected through the leakage-proof mechanism, the leakage-proof mechanism includes a box body, the bottom of the box body is provided with an opening, the opening extends toward the inside of the box body with a sliding cavity, a top column is slidably connected in the sliding cavity, the bottom of the top column is fixedly connected with a push plate, the top column and the push plate are integrally formed, a first spring is fixedly connected between the upper surface of the push plate and the bottom of the outer surface of the box body, the first spring is located on both sides of the top column, and the top of the top column is fixedly connected with a stopper The top of the baffle is fixedly connected with an extension rod, the top of the extension rod is fixedly connected with an upper fixed block, the extension rod is also slidably connected with a lower slider, and the lower slider is located between the upper fixed block and the baffle, and the box body is also provided with a first slide groove and a second slide groove, the first slide groove and the second slide groove are both located above the upper fixed block and close to the bottom of the first pipe, the first slide groove is slidably connected with the first slider, the second slide groove is slidably connected with the second slider, a second spring is fixedly connected between the bottom of the first slider and the bottom of the inner wall of the first slide groove, and a third spring is fixedly connected between the bottom of the second slider and the bottom of the inner wall of the second slide groove.

[0007] Furthermore, the upper fixing block and the lower sliding block are both in an isosceles trapezoidal shape, and the upper fixing block and the lower sliding block are arranged in opposite directions.

[0008] By adopting the above technical solution, when pushing the top column, the isosceles trapezoidal upper fixed block can slide between the first slider and the second slider, and then be pushed to the top of the first slider and the second slider by the top column. When the top column is pushed again, the lower slider can also slide to the top of the first slider and the second slider, and through the inclined surfaces on both sides of the lower slider, the upper fixed block and the lower slider are reset.

[0009] Furthermore, the first slider and the second slider are both in the shape of a right-angled trapezoid, and pulleys are arranged on the inclined surfaces of the first slider and the second slider.

[0010] By adopting the above technical solution, when pushing the top column, the pulley greatly reduces the friction during the sliding process.

[0011] Furthermore, the inclination angles of the inclined surfaces of the first sliding block and the second sliding block are respectively the same as the inclination angles of the inclined surfaces on both sides of the corresponding upper fixing block.

[0012] By adopting the above technical solution, the upper fixed block can slide down to above the first sliding block and the second sliding block under the push of the top column.

[0013] Furthermore, a sealing assembly is also provided inside the box body, and the sealing assembly includes a sealing groove fixedly connected to the upper surfaces of the first slider and the second slider, and a sealing strip fixedly connected to the bottom surface of the upper fixed block, the sealing strip matches the sealing groove, and a card groove is provided on the upper surface of the lower slider, and the card groove matches the sealing strip, and a sealing gasket is fixedly connected to the top of the sliding cavity, and the sealing gasket is provided with a through hole adapted to the width of the sliding cavity.

[0014] By adopting the above technical solution, when the upper fixed block is pushed to the upper part of the first slider and the second slider and is no longer pushed, the sealing strip at the bottom of the upper fixed block can be engaged with the sealing groove, so that the entire channel becomes sealed, thereby effectively preventing leakage. When the channel needs to be opened and the top column is pushed again, the groove and the sealing strip can also fit well, so that there is no gap between the upper fixed block and the lower slider, which is convenient for resetting the upper fixed block and the lower slider. At the same time, when no leakage occurs, the sealing gasket can also effectively prevent liquid from leaking to the outside through the sliding cavity.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model is provided with an anti-leakage mechanism. When leakage occurs, the staff does not need to manually twist the valve stem, but only needs to push the push plate upward so that the upper fixed block squeezes the first sliding block and the second sliding block apart and is located above the first sliding block and the second sliding block. At the same time, the sealing strip is engaged in the sealing groove to achieve the purpose of sealing the channel, saving time and effort and greatly improving practicality.

[0017] 2. The utility model provides a sealing device. When there is no leakage, the sealing gasket can well seal the interior to prevent the liquid from flowing to the outside through the sliding cavity. When leakage occurs, the engagement of the sealing strip and the sealing groove can well seal the channel to achieve the purpose of sealing the interior of the box. The sealing effect will not be reduced due to external damage, which greatly reduces the limitations.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a front cross-sectional structural schematic diagram of an embodiment of the utility model;

[0021] Figure 2 This is an enlarged structural schematic diagram of point a of an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of a closed cross-sectional structure in a front view of an embodiment of the utility model;

[0023] Figure numerals: 1. first pipeline; 2. second pipeline; 3. anti-leakage mechanism; 31. box body; 32. opening; 33. sliding cavity; 34. top column; 35. push plate; 36. first spring; 37. baffle; 38. extension rod; 39. upper fixed block; 310. lower slider; 311. first slide groove; 312. second slide groove; 313. first slider; 314. second slider; 315. second spring; 316. third spring; 4. sealing assembly; 41. sealing groove; 42. sealing strip; 43. slot; 44. sealing gasket. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 , Figure 2The utility model embodiment proposes a leakage-proof valve device, including a first pipeline 1 and a second pipeline 2, an anti-leakage mechanism 3 is installed between the first pipeline 1 and the second pipeline 2, the first pipeline 1 and the second pipeline 2 are connected through the anti-leakage mechanism 3, the anti-leakage mechanism 3 includes a box body 31, the bottom of the box body 31 is provided with an opening 32, the opening 32 extends a sliding cavity 33 toward the inside of the box body 31, a top column 34 is slidably connected in the sliding cavity 33, the bottom of the top column 34 is fixedly connected with a push plate 35, the top column 34 and the push plate 35 are integrally formed, a first spring 36 is fixedly connected between the upper surface of the push plate 35 and the bottom of the outer surface of the box body 31, the first spring 36 is located on both sides of the top column 34, the top of the top column 34 is fixedly connected with a baffle 37, the top of the baffle 37 is fixedly connected An extension rod 38 is connected, and an upper fixed block 39 is fixedly connected to the top of the extension rod 38. A lower slider 310 is also slidably connected to the extension rod 38. The lower slider 310 is located between the upper fixed block 39 and the baffle 37. A first slide groove 311 and a second slide groove 312 are also provided in the box body 31. The first slide groove 311 and the second slide groove 312 are both located above the upper fixed block 39 and close to the bottom of the first pipe 1. A first slider 313 is slidably connected in the first slide groove 311, and a second slider 314 is slidably connected in the second slide groove 312. A second spring 315 is fixedly connected between the bottom of the first slider 313 and the bottom of the inner wall of the first slide groove 311, and a third spring 316 is fixedly connected between the bottom of the second slider 314 and the bottom of the inner wall of the second slide groove 312.

[0026] Reference Figure 2 , Figure 3 The first and second slide blocks 314 are respectively provided with a plurality of pulleys, each of which is provided with a plurality of pulleys, each of which is provided with a plurality of pulleys.

[0027] Reference Figure 2The box body 31 is also provided with a sealing assembly 4 inside, which includes a sealing groove 41 fixedly connected to the upper surface of the first slider 313 and the second slider 314 and a sealing strip 42 fixedly connected to the bottom surface of the upper fixed block 39, the sealing strip 42 matches the sealing groove 41, the upper surface of the lower slider 310 is provided with a card groove 43, the card groove 43 matches the sealing strip 42, the top of the sliding cavity 33 is fixedly connected with a sealing gasket 44, and a through hole adapted to the width of the sliding cavity 33 is opened on the sealing gasket 44. When the upper fixed block 39 is pushed to the first slider 313 and the second slider 314, the sealing gasket 44 is fixedly connected to the top of the sliding cavity 33. When the upper part of the second slider 314 is no longer pushed, the sealing strip 42 at the bottom of the upper fixed block 39 can be engaged with the sealing groove 41, so that the entire channel becomes sealed, thereby effectively preventing leakage. When the channel needs to be opened and the top column 34 is pushed again, the groove 43 and the sealing strip 42 can also fit well, so that there is no gap between the upper fixed block 39 and the lower slider 310, which is convenient for the upper fixed block 39 and the lower slider 310 to reset. At the same time, when no leakage occurs, the sealing gasket 44 can also effectively prevent liquid from leaking to the outside through the sliding cavity 33.

[0028] The specific implementation method is as follows: when in use, first connect the two ends of the box body 31 to the first pipe 1 and the second pipe 2 respectively. When the liquid medium is being transported, the baffle 37 will be firmly attached to the sealing gasket 44 under the action of the first spring 36, thereby isolating and sealing the inside of the box body 31 from the outside, so that the liquid medium will not leak to the outside. When the pipe connection starts to leak, the staff pushes the push plate 35 to make the top column 34 slide upward inside the sliding cavity 33. At this time, the upper fixed block 39 will squeeze the first slider 313 and the second slider 314 to both sides. The first slider 313 and the second slider 314 slide toward the inside of the slide groove under the action of the second spring 315 and the third spring 316, and then the upper fixed block 39 can be pushed to the top of the first slider 313 and the second slider 314. At this time, the push of the top column 34 is stopped, so that the upper fixed block 39 is pressed upward under the action of the first spring 36. The lower slider 310 is pressed against the upper surface of the first slider 313 and the second slider 314, and the sealing strip 42 is also tightly engaged in the sealing groove 41, isolating the interior of the box body 31 into two non-communicating spaces, thereby isolating the liquid medium well and preventing the flow of the liquid medium. When the maintenance is completed and the liquid needs to be circulated, the staff pushes the push plate 35 again, and the lower slider 310 also slides to the top of the first slider 313 and the second slider 314. At this time, the pushing of the push plate 35 is stopped, so that the top column 34 is reset under the action of the first spring 36. At this time, the lower slider 310 is blocked by the first slider 313 and the second slider 314 and is engaged with the upper fixing block 39, so that there is no gap between the upper fixing block 39 and the lower slider 310, thereby facilitating the upper fixing block 39 and the lower slider 310 to slide from the top of the first slider 313 and the second slider 314 to the original position, allowing the liquid medium to circulate again.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A leak-proof valve device, comprising a first pipeline (1) and a second pipeline (2), characterized in that: An anti-leakage mechanism (3) is installed between the first pipe (1) and the second pipe (2), and the first pipe (1) and the second pipe (2) are connected through the anti-leakage mechanism (3). The anti-leakage mechanism (3) comprises a box body (31), the bottom of the box body (31) is provided with an opening (32), the opening (32) extends a sliding cavity (33) toward the inside of the box body (31), a top column (34) is slidably connected in the sliding cavity (33), a push plate (35) is fixedly connected to the bottom of the top column (34), the top column (34) and the push plate (35) are integrally formed, a first spring (36) is fixedly connected between the upper surface of the push plate (35) and the bottom of the outer surface of the box body (31), the first spring (36) is located on both sides of the top column (34), a baffle (37) is fixedly connected to the top of the top column (34), an extension rod (38) is fixedly connected to the top of the baffle (37), and the extension rod (38) is fixedly connected to the top of the baffle (37). An upper fixed block (39) is fixedly connected to the top of the rod (38), and a lower slider (310) is slidably connected to the extension rod (38), and the lower slider (310) is located between the upper fixed block (39) and the baffle (37). A first slide groove (311) and a second slide groove (312) are also provided on both sides of the inner wall surface of the box body (31), and the first slide groove (311) and the second slide groove (312) are both located above the upper fixed block (39) and close to the bottom of the first pipe (1). A first slider (313) is slidably connected in the first slide groove (311), and a second slider (314) is slidably connected in the second slide groove (312). A second spring (315) is fixedly connected between the bottom of the first slider (313) and the bottom of the inner wall surface of the first slider (311), and a third spring (316) is fixedly connected between the bottom of the second slider (314) and the bottom of the inner wall surface of the second slider (312).

2. The anti-leakage valve device according to claim 1, characterized in that: The upper fixing block (39) and the lower sliding block (310) are both in the shape of an isosceles trapezoid, and the upper fixing block (39) and the lower sliding block (310) are arranged in opposite directions.

3. The anti-leakage valve device according to claim 1, characterized in that: The first sliding block (313) and the second sliding block (314) are both in the shape of a right-angled trapezoid, and pulleys are arranged on the inclined surfaces of the first sliding block (313) and the second sliding block (314).

4. The anti-leakage valve device according to claim 1, characterized in that: The inclination angles of the inclined surfaces of the first sliding block (313) and the second sliding block (314) are respectively the same as the inclination angles of the inclined surfaces on both sides of the corresponding upper fixing block (39).

5. The anti-leakage valve device according to claim 1, characterized in that: A sealing assembly (4) is also provided inside the box body (31), and the sealing assembly (4) includes a sealing groove (41) fixedly connected to the upper surfaces of the first slider (313) and the second slider (314), and a sealing strip (42) fixedly connected to the bottom surface of the upper fixed block (39), and the sealing strip (42) matches the sealing groove (41). A slot (43) is provided on the upper surface of the lower slider (310), and the slot (43) matches the sealing strip (42). A sealing gasket (44) is fixedly connected to the top end of the sliding cavity (33), and a through hole matching the diameter of the sliding cavity (33) is opened on the sealing gasket (44).

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