CN213628941U

CN213628941U - Anti-leakage sealing gate valve

Info

Publication number: CN213628941U
Application number: CN202022392647.7U
Authority: CN
Inventors: 袁君辉; 杨士鹏; 郑永兵
Original assignee: Zhejiang Yipan Technology Co ltd
Current assignee: Zhejiang Fansheng Fluid Control Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-07-06
Anticipated expiration: 2030-10-23

Abstract

The utility model provides a prevent leaking sealing gate valve belongs to gate valve technical field. It has solved the not good problem that leads to leaking of current gate valve leakproofness. This prevent leaking sealing gate valve, including the valve body that has inlet channel and outlet conduit, the axial ring channel has been seted up by outer to interior axial to the inner wall of inlet channel, the inlet channel endotheca is equipped with the fixed cover that the middle part has water through-hole, and this fixed cover threaded connection is on the axial ring channel, the rear end wall of fixed cover just is located water through-hole outside and has seted up an annular groove inwards, the annular groove makes fixed cover form inner circle bulge loop and outer lane bulge loop, it has the waterproof soft pad of multilayer to just be located to distribute between inner circle bulge loop and the outer lane bulge loop in the annular groove, it has the cushion sleeve that plays the buffering effect to rivers still to overlap in the inlet channel, still be equipped with the spacing tight fit spacing sleeve that prevents cushion sleeve and drop in. The utility model has the advantages of water leakage prevention, good sealing effect and long service life.

Description

Anti-leakage sealing gate valve

Technical Field

The utility model belongs to the technical field of the gate valve, a gate valve is related to, in particular to prevent leaking sealing gate valve.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. The gate valve can produce a great impact force to the input of flashboard through the pressurized rivers in the use, and long-time use back can make the laminating position of flashboard and disk seat warp, influences the leakproofness of gate valve, leads to the emergence of the phenomenon of leaking, reduces the life of gate valve.

Disclosure of Invention

The utility model aims at providing a prevent to leak to the above-mentioned problem that exists among the prior art, sealed effectual, long service life prevents leaking sealing gate valve.

The purpose of the utility model can be realized by the following technical proposal: a leakproof seal gate valve comprises a valve body with a water inlet pipeline and a water outlet pipeline, and is characterized in that an axial ring groove is axially formed in the inner wall of the water inlet pipeline from outside to inside, a fixed sleeve with a water through hole in the middle is sleeved in the water inlet pipeline, the fixed sleeve is in threaded connection with the axial ring groove, an annular groove is formed in the rear end wall of the fixed sleeve and is positioned outside the water through hole inwards, the annular groove enables the fixed sleeve to form an inner ring convex ring and an outer ring convex ring, multiple layers of waterproof soft cushions are distributed in the annular groove and positioned between the inner ring convex ring and the outer ring convex ring, a buffer sleeve with a buffer effect on water flow is further sleeved in the water inlet pipeline, a first concave ring for the outer ring convex ring to extend into is inwards recessed in the outer edge of the inner end part of the buffer sleeve, a second concave ring for the inner ring convex ring to extend into is inwards recessed in the inner end, the buffer sleeve is characterized in that a relative outward convex ring part is arranged on the front end part of the buffer sleeve and between the first concave ring and the second concave ring, the convex ring part extends into the annular groove and is abutted against the waterproof soft pad, the convex ring part extends into a movable cavity I between the convex ring of the outer ring in the first concave ring and the buffer sleeve, the convex ring of the inner ring in the second concave ring and the buffer sleeve are provided with a movable cavity II, the water inlet pipeline is internally provided with a tight-fit limiting sleeve which limits the buffer sleeve to prevent the buffer sleeve from falling off, and the middle part of the buffer sleeve is provided with a central buffering water passing hole for water flow to pass through.

In the above leak-proof sealing gate valve, the tight-fitting limiting sleeve is located at the rear end of the buffering sleeve and is in threaded connection with the axial annular groove.

In the above leakage-proof sealing gate valve, a plurality of upper conical buffer holes are uniformly distributed in the circumferential direction on the outer circumferential wall at the rear end of the buffer sleeve, a plurality of front conical buffer holes are uniformly distributed in the circumferential direction on the outer circumferential wall at the front end of the buffer sleeve and on the outer circumferential wall of the central buffer water passing hole, and the plurality of upper conical buffer holes are communicated with the plurality of front conical buffer holes.

3 in the above-mentioned leak-proof sealing gate valve, the front end of the upper tapered buffer hole is trumpet-shaped, and the front end of the front tapered buffer hole is trumpet-shaped.

3 in the above-mentioned leak-proof sealing gate valve, a water passing space communicated with the upper conical buffer hole is arranged between the outer peripheral wall of the rear end of the buffer sleeve and the inner peripheral wall of the close-fitting limiting sleeve.

In the above leakage-proof sealing gate valve, a circular truncated cone buffer part is disposed on an end wall of the rear end of the buffer sleeve.

Compared with the prior art, this prevent leaking sealing gate valve has multiple buffering effect, can effectively prevent the emergence of the phenomenon of leaking, improves the life of leakproofness and gate valve.

Drawings

Fig. 1 is a schematic view of the structure in the leak-proof sealing gate valve.

Fig. 2 is an enlarged schematic view of the structure of fig. 1 at a point a in the leak-proof sealing gate valve of the present invention.

In the figure, 1, a water inlet pipeline; 2. a water outlet pipeline; 3. a valve body; 4. an axial annular groove; 5. a water passing through hole; 6. fixing a sleeve; 7. an annular groove; 8. an inner ring convex ring; 9. an outer ring convex ring; 10. a waterproof soft pad; 11. a buffer sleeve; 12. a first concave ring; 13. a concave ring II; 14. a convex ring part; 15. a first movable cavity; 16. a second movable cavity; 17. tightly fitting a limiting sleeve; 18. a central buffering water through hole; 19. an upper conical buffer hole; 20. a front tapered buffer hole; 21. water passing intervals; 22. the round platform buffer part.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and fig. 2, the leakproof seal gate valve comprises a valve body 3 with a water inlet pipe 1 and a water outlet pipe 2, wherein an axial ring groove 4 is axially arranged on the inner wall of the water inlet pipe 1 from outside to inside, a fixing sleeve 6 with a water through hole 5 in the middle is sleeved in the water inlet pipe 1, the fixing sleeve 6 is in threaded connection with the axial ring groove 4, an annular groove 7 is arranged on the rear end wall of the fixing sleeve 6 and is positioned outside the water through hole 5 and faces inwards, the annular groove 7 enables the fixing sleeve 6 to form an inner ring convex ring 8 and an outer ring convex ring 9, a plurality of layers of waterproof soft cushions 10 are distributed in the annular groove 7 and are positioned between the inner ring convex ring 8 and the outer ring convex ring 9, a buffer sleeve 11 which has a buffering effect on water flow is further sleeved in the water inlet pipe 1, a first concave ring 12 for the outer ring convex ring 9 to extend into is arranged at the outer edge of the inner end part of the buffer sleeve 11 and a second concave ring, a convex ring part 14 which is relatively protruded outwards is arranged on the front end part of the buffering sleeve 11 and is positioned between the concave ring I12 and the concave ring II 13, the convex ring part 14 extends into the annular groove 7 and is abutted against the waterproof soft cushion 10, a movable cavity I15 is arranged between the outer ring convex ring 9 extending into the concave ring I12 and the buffering sleeve 11, a movable cavity II 16 is arranged between the inner ring convex ring 8 extending into the concave ring II 13 and the buffering sleeve 11, the axial widths of the movable cavity I15 and the movable cavity II 16 are equal, a close-fit limiting sleeve 17 which limits the buffering sleeve 11 to prevent the buffering sleeve 11 from falling off is also arranged in the water inlet pipeline 1, a central buffering water through hole 18 for water to pass through is arranged in the middle part of the buffering sleeve 11, at the moment that the water impacts the water inlet pipeline 1, the buffering sleeve 11 can realize small-range internal shrinkage through the matching of the movable cavity I15 and the outer ring convex ring 9 and the matching of the movable cavity II 16 and the inner ring convex ring, in the process, the waterproof soft cushion 10 is compressed to achieve the effect of buffering the buffering sleeve 11, the tight-fit limiting sleeve 17 is positioned at the rear end part of the buffering sleeve 11 and is in threaded connection with the axial annular groove 4, the peripheral wall at the rear end of the buffering sleeve 11 is provided with a plurality of upper conical buffering holes 19 which are uniformly distributed in the circumferential direction, the end wall at the front end of the buffering sleeve 11 is positioned on the periphery of the central buffering water passing hole 18 and is uniformly distributed with a plurality of front conical buffering holes 20, the plurality of upper conical buffering holes 19 are mutually communicated with the plurality of front conical buffering holes 20, the front end part of the upper conical buffering hole 19 is in a horn shape, the front end part of the front conical buffering hole 20 is in a horn shape, when water flows pass through the upper conical buffering holes 19 and the front conical buffering holes 20, the water flow containing amount is firstly reduced and then passes through the horn-shaped design part to improve the water flow containing amount, the impact force of the water flows entering the water inflow pipe is converted by changing the containing amount of the water, the buffering effect is greatly improved, a water passing interval 21 communicated with an upper conical buffering hole 19 is formed between the outer peripheral wall of the rear end of the buffering sleeve 11 and the inner peripheral wall of a tight-fit limiting sleeve 17, a round-table buffering part 22 is formed in the end wall of the rear end of the buffering sleeve 11, water flow contacts the round-table buffering part 22 when impacting into the water inlet pipeline 1 to obtain an initial buffering effect, a water flow part flows into the valve body 3 through a central buffering water passing hole 18, the other part flows into the valve body 3 through a front conical buffering hole 20, the other part enters the upper conical buffering hole 19 through the water passing interval 21, the water flow part flows into the front conical buffering hole 20 and enters the valve body 3 through the front conical buffering hole 20, the water flow flows in multiple directions through buffering holes formed in multiple different positions, the water flow with large impact force is dispersed, and the impact force of the water flow is greatly reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A leakproof seal gate valve comprises a valve body (3) with a water inlet pipeline (1) and a water outlet pipeline (2), and is characterized in that an axial annular groove (4) is axially formed in the inner wall of the water inlet pipeline (1) from outside to inside, a fixing sleeve (6) with a water through hole (5) in the middle is sleeved in the water inlet pipeline (1), the fixing sleeve (6) is in threaded connection with the axial annular groove (4), an annular groove (7) is formed in the rear end wall of the fixing sleeve (6) and is positioned outside the water through hole (5) inwards, the annular groove (7) enables the fixing sleeve (6) to form an inner ring convex ring (8) and an outer ring convex ring (9), a plurality of layers of waterproof soft cushions (10) are distributed in the annular groove (7) and between the inner ring convex ring (8) and the outer ring convex ring (9), and a buffer sleeve (11) with a buffer effect on water flow is further sleeved in the water inlet pipeline (1), the outer edge of the inner end part of the buffer sleeve (11) is inwards recessed to form a first concave ring (12) for an outer ring convex ring (9) to extend into, the inner end part of the buffer sleeve (11) is inwards recessed to form a second concave ring (13) for an inner ring convex ring (8) to extend into, a convex ring part (14) which is relatively outwards raised is arranged on the front end part of the buffer sleeve (11) and is positioned between the first concave ring (12) and the second concave ring (13), the convex ring part (14) extends into the annular groove (7) and is abutted against the waterproof soft cushion (10), a first movable cavity (15) is arranged between the outer ring convex ring (9) extending into the first concave ring (12) and the buffer sleeve (11), a second movable cavity (16) is arranged between the inner ring convex ring (8) extending into the second concave ring (13) and the buffer sleeve (11), and a close-fitting limiting sleeve (17) which limits the buffer sleeve (11) to prevent the buffer sleeve (11) from falling off is further arranged in the water inlet pipeline (1), the middle part of the buffering sleeve (11) is provided with a central buffering water passing hole (18) for water flow to pass through.

2. A leak-tight sealing gate valve as claimed in claim 1, characterized in that the tight-fitting limit sleeve (17) is located at the rear end of the cushion sleeve (11) and is screwed to the axial annular groove (4).

3. A leakage-proof sealing gate valve according to claim 1, characterized in that a plurality of upper conical buffer holes (19) are provided on the peripheral wall of the rear end of the buffer sleeve (11), said upper conical buffer holes (20) are uniformly distributed on the end wall of the front end of the buffer sleeve (11) and located on the periphery of the central buffer water through hole (18), and said upper conical buffer holes (19) are communicated with said front conical buffer holes (20).

4. A leak-proof seal gate valve according to claim 3, characterized in that the front end of said upper tapered buffer hole (19) is flared and the front end of said front tapered buffer hole (20) is flared.

5. A leak-proof sealing gate valve according to claim 3, characterized in that a water passing space (21) communicating with the upper conical cushion hole (19) is provided between the outer peripheral wall of the rear end of the cushion sleeve (11) and the inner peripheral wall of the tight fitting limit sleeve (17).

6. A leak-proof sealing gate valve according to claim 1, characterized in that a circular truncated cone buffering portion (22) is provided on the end wall of the rear end of the buffering sleeve (11).