CN219888855U - Pressure self-tightening sealing gate valve - Google Patents

Abstract

The utility model discloses a pressure self-tightening type sealing gate valve, which relates to the field of valves and comprises a pressure self-sealing gate valve, wherein a valve screw rod is arranged on the pressure self-sealing gate valve. According to the utility model, through the arrangement of the structures such as the oil storage box, the guide pipe and the oil brushing cotton, the seal cover can be rotated to open the oil storage box during use, then lubricating oil is poured into the oil storage box, the linkage toothed ring can be driven to rotate while the valve screw rod is rotated, and the linkage toothed ring can be driven to rotate by matching with the linkage gear, so that the oil conveying rotating vane is rotated, the oil conveying rotating vane can convey the lubricating oil, the oil brushing cotton is soaked by the lubricating oil, and the oil brushing cotton contacts with the valve screw rod to uniformly lubricate the valve screw rod while the valve screw rod rotates and moves, so that the valve screw rod can be rotated more smoothly, the valve screw rod is prevented from rusting, and the service life of the valve screw rod is prolonged.

Description

Pressure self-tightening sealing gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to a pressure self-tightening sealing gate valve.

Background

The self-sealing sluice valve is also called a pressure sealing sluice valve, which is a sealing type between a valve body and a valve cover, the pressure self-sealing sluice valve achieves the sealing purpose by utilizing the pressure of a medium, and the larger the pressure is, the larger the generated sealing force is, and the more reliable the sealing is.

In the prior art, when the self-sealing gate valve is used, the handle is required to be rotated, the screw rod on the valve can be driven by the handle to rotate to realize the opening and closing operation of the valve, but after long-time use, the screw rod is easy to rust, so that the screw rod is difficult to rotate, the normal use of the self-sealing gate valve can be influenced, and therefore, the self-tightening pressure sealing gate valve is required to meet the demands of people.

Disclosure of Invention

The utility model aims to provide a pressure self-tightening type sealing gate valve, which solves the problems that the screw rod of the self-tightening gate valve is easy to rust and difficult to rotate after long-time use, so that the normal use of the self-tightening gate valve is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pressure self-tightening type sealing gate valve, includes pressure self-sealing gate valve, be equipped with the valve lead screw on the pressure self-sealing gate valve, fixed mounting has two support frames on the pressure self-sealing gate valve, installs same oil storage structure on two support frames, installs U type bracket on the oil storage structure, and fixed mounting has the brush oil structure on the U type bracket, installs the universal driving axle on the oil storage structure, installs the linkage oil outlet structure on the universal driving axle.

Preferably, the oil storage structure comprises an oil storage box, the oil storage box is fixedly arranged on the two supporting frames, a sealing cover is arranged on the oil storage box in a threaded mode, a guide pipe is fixedly arranged on the oil storage box, and the guide pipe corresponds to the valve screw rod.

Preferably, the oil brushing structure comprises oil brushing cotton, the oil brushing cotton is fixedly arranged on a U-shaped bracket, the oil brushing cotton is movably arranged on the inner wall of the guide pipe, the oil brushing cotton is contacted with the valve screw rod, two movable plates are rotatably arranged on the U-shaped bracket, arc clamping strips are fixedly arranged on one sides of the two movable plates, which are close to each other, of the guide pipe, two limiting blocks are fixedly arranged on the guide pipe, arc clamping grooves are formed in the two limiting blocks, and the two arc clamping strips are movably arranged in the two arc clamping grooves respectively.

Preferably, two rotating holes are formed in the U-shaped bracket, two rotating shafts are rotatably arranged in the two rotating holes, the two rotating shafts are fixedly arranged on one sides of the two movable plates, which are close to each other, torsion springs are fixedly sleeved on the two rotating shafts, one ends of the two torsion springs are fixedly arranged on the inner walls of the two rotating holes respectively, and the other ends of the two torsion springs are fixedly arranged on the two rotating shafts respectively.

Preferably, two positioning clamping grooves are formed in the guide pipe, positioning clamping blocks are movably mounted in the two positioning clamping grooves, and the two positioning clamping blocks are fixedly mounted on the U-shaped bracket.

Preferably, the linkage oil outlet structure comprises an oil transportation rotating vane, the oil transportation rotating vane is fixedly arranged on a linkage shaft, the linkage shaft is rotatably arranged on a guide pipe, two sealing blocks are fixedly arranged on the inner wall of the guide pipe, two oil transportation grooves are formed between the two sealing blocks, the oil transportation rotating vane is contacted with the inner wall of the two sealing blocks, a linkage gear is fixedly arranged at one end of the linkage shaft, a linkage toothed ring is rotatably arranged on the pressure self-sealing gate valve, the linkage toothed ring is meshed with the linkage gear, and the linkage toothed ring is slidably arranged on the valve screw rod.

Preferably, the inner wall of the linkage gear ring is fixedly provided with two limiting sliding blocks, the valve screw rod is provided with two limiting sliding grooves, and the two limiting sliding blocks are respectively and slidably arranged in the two limiting sliding grooves.

Preferably, the linkage toothed ring is provided with an anti-drop groove, the anti-drop groove is rotationally provided with an anti-drop ring, and the anti-drop ring is fixedly arranged on the pressure self-sealing gate valve.

The beneficial effects of the utility model are as follows:

according to the utility model, through the arrangement of the structures such as the oil storage box, the guide pipe and the oil brushing cotton, the oil storage box can be opened by rotating the sealing cover during use, and then lubricating oil is poured into the oil storage box, the linkage toothed ring can be driven to rotate while the valve screw rod is rotated, and the linkage toothed ring can be driven to rotate by matching with the linkage gear, so that the oil conveying rotating vane is rotated, the oil conveying rotating vane can convey the lubricating oil, the oil brushing cotton is soaked by the lubricating oil, and the oil brushing cotton contacts with the valve screw rod to uniformly lubricate the valve screw rod while the valve screw rod rotates and moves, so that the valve screw rod can be more smooth during rotation, the valve screw rod is prevented from rusting, and the service life of the valve screw rod is prolonged.

According to the utility model, through the arrangement of the structures such as the U-shaped bracket, the oil conveying rotating vane and the like, when the valve screw rod rotates, the oil conveying rotating vane rotates and conveys lubricating oil, when the valve screw rod stops rotating, the oil conveying rotating vane stops rotating and conveying lubricating oil, meanwhile, the lubricating oil can be blocked through the matching of the oil conveying rotating vane and the sealing block, the lubricating oil leakage waste is prevented, the restriction on the U-shaped bracket can be relieved through the movable plates at the two sides of the rotation, and the oil brushing cotton can be removed from the guide pipe through pulling the U-shaped bracket, so that the cleaning or replacement operation of the oil brushing cotton is facilitated.

Drawings

FIG. 1 is a schematic diagram of a pressure self-tightening sealing gate valve according to the present utility model;

FIG. 2 is a schematic diagram of a connection structure of an oil storage box portion of a pressure self-tightening sealing gate valve according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a portion of an oil reservoir of a pressure self-tightening sealing gate valve according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a pilot pipe portion of a self-tightening sealing gate valve according to the present utility model;

FIG. 5 is a schematic diagram of a brush cotton part of a pressure self-tightening sealing gate valve according to the present utility model;

fig. 6 is a schematic cross-sectional view of a U-shaped bracket portion of a pressure self-tightening sealing gate valve according to the present utility model.

In the figure: 100. a pressure self-sealing gate valve; 101. a valve screw rod; 200. a support frame; 201. an oil storage box; 202. sealing cover; 203. a guide tube; 300. a U-shaped bracket; 301. brushing oil cotton; 302. a movable plate; 303. arc-shaped clamping strips; 304. an arc-shaped clamping groove; 305. a rotation hole; 306. a rotating shaft; 307. a torsion spring; 308. positioning clamping grooves; 309. positioning a clamping block; 310. a limiting block; 400. a linkage shaft; 401. oil transportation rotary vane; 402. a sealing block; 403. an oil delivery groove; 404. a linkage gear; 405. a linkage toothed ring; 406. a limit sliding block; 407. limiting sliding grooves; 408. an anti-drop groove; 409. and (5) preventing the ring from falling off.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-6, a pressure self-tightening sealing gate valve, including a pressure self-sealing gate valve 100, a valve screw 101 is provided on the pressure self-sealing gate valve 100, two supporting frames 200 are fixedly installed on the pressure self-sealing gate valve 100, the same oil storage structure is installed on the two supporting frames 200, a U-shaped bracket 300 is installed on the oil storage structure, a brushing structure is fixedly installed on the U-shaped bracket 300, a linkage shaft 400 is installed on the oil storage structure, a linkage oil outlet structure is installed on the linkage shaft 400, when in use, the sealing cover 202 can be rotated to open the oil storage box 201, lubricating oil is poured into the oil storage box 201, so that lubricating oil can flow into the guide pipe 203, then flows into between blades 401 of the oil delivery rotating blades 401 through oil delivery grooves 403 and is blocked by the influence of the oil delivery rotating blades 401 and sealing blocks 402, when the pressure self-sealing gate valve 100 is used, the rotating handle can drive the valve screw 101 to rotate, the valve screw 101 moves up and down while rotating, when the valve screw 101 rotates, a gear ring 405 is driven by the cooperation of a limit slide 406 and a limit slide groove 405 to rotate, and a gear ring 405 is driven by the limit slide groove, so that the gear 405 rotates, and when the two gear rings 405 move, the upper gear 405 and the upper gear ring 405 and the lower gear 405 move, and the lower gear ring 405 move, and the two gear ring 405 move, and the upper gear 405 and the lower gear ring 405 and the lower gear, and the lower gear ring 405 move, and the valve seat. Therefore, the oil transportation rotating vane 401 drives the lubricating oil between the vanes to flow and flow out through the other oil transportation groove 403, the flowing lubricating oil can be absorbed by the oil brushing cotton 301, the oil brushing cotton 301 is soaked, the valve screw 101 rotates and moves, the oil brushing cotton 301 and the valve screw 101 can be contacted to uniformly lubricate the valve screw 101, the movable plates 302 on two sides are turned over, the movable plates 302 can drive the rotating shaft 306 to rotate in the rotating hole 305, the movable plates 302 achieve the turning effect, the torsion spring 307 can be compressed while the rotating shaft 306 rotates, the continuously turned movable plates 302 can drive the arc clamping strips 303 to separate from the arc clamping grooves 304 on the limiting blocks 310, at the moment, the limitation on the U-shaped bracket 300 can be relieved, then the U-shaped bracket 300 is pulled downwards, the U-shaped bracket 300 can drive the two positioning 309 to separate from the two positioning clamping grooves 308 on the guide pipe 203, the continuously moving U-shaped bracket 300 can drive the oil brushing cotton 301 to separate from the guide pipe 203, so that the oil brushing cotton 301 can be pulled out of the guide pipe 203, and the oil brushing cotton 301 can be replaced conveniently.

Further, the oil storage structure comprises an oil storage box 201, the oil storage box 201 is fixedly arranged on the two supporting frames 200, a sealing cover 202 is arranged on the oil storage box 201 in a threaded mode, a guide pipe 203 is fixedly arranged on the oil storage box 201, the guide pipe 203 corresponds to the valve screw 101, the sealing cover 202 can be rotated to open the oil storage box 201 when the oil storage structure is used, lubricating oil is poured into the oil storage box 201, the lubricating oil can flow into the guide pipe 203, and then flows into between blades of the oil conveying rotary blades 401 through the oil conveying grooves 403 and is blocked due to the influence of the oil conveying rotary blades 401 and the sealing blocks 402.

Further, the oil brushing structure comprises oil brushing cotton 301, the oil brushing cotton 301 is fixedly arranged on the U-shaped bracket 300, the oil brushing cotton 301 is movably arranged on the inner wall of the guide tube 203, the oil brushing cotton 301 is contacted with the valve screw 101, two movable plates 302 are rotatably arranged on the U-shaped bracket 300, one sides of the two movable plates 302, which are close to each other, are fixedly provided with arc clamping strips 303, two limiting blocks 310 are fixedly arranged on the guide tube 203, arc clamping grooves 304 are formed in the two limiting blocks 310, the two arc clamping strips 303 are movably arranged in the two arc clamping grooves 304 respectively, the flowing lubricating oil can be adsorbed by the oil brushing cotton 301, so that the oil brushing cotton 301 is soaked, the valve screw 101 rotates and moves, simultaneously, the oil brushing cotton 301 contacts with the valve screw 101 to uniformly lubricate the valve screw 101, the movable plates 302 at two sides can drive the rotating shafts 306 to rotate in the rotating holes 305, the movable plates 302 achieve the overturning effect, the rotating shafts 306 can compress torsion springs 307, the continuously overturned movable plates 302 can drive the clamping strips 310 to separate from the two arc clamping strips 304 to the guide tube 203, and then the two arc clamping strips 300 can be separated from the guide tube 203, and the two U-shaped bracket 300 can be continuously pulled out of the U-shaped bracket 300, and the two guide tubes can be separated from the two U-shaped brackets 203, and the two guide tubes can be conveniently and the guide tube 300 can be separated from the two guide brackets from the U-shaped bracket 203, and the guide tube can be conveniently and positioned by the two-shaped brackets, and the two guide tubes can be separated from the guide tube and the guide tube.

Further, two rotating holes 305 are formed in the U-shaped bracket 300, two rotating shafts 306 are rotatably mounted in the two rotating holes 305, the two rotating shafts 306 are fixedly mounted on one sides of the two movable plates 302, which are close to each other, torsion springs 307 are fixedly sleeved on the two rotating shafts 306, one ends of the two torsion springs 307 are fixedly mounted on the inner walls of the two rotating holes 305, the other ends of the two torsion springs 307 are fixedly mounted on the two rotating shafts 306, the movable plates 302 can drive the rotating shafts 306 to rotate in the rotating holes 305, the movable plates 302 achieve overturning effect, and the torsion springs 307 can be compressed when the rotating shafts 306 rotate.

Further, two positioning clamping grooves 308 are formed in the guide tube 203, positioning clamping blocks 309 are movably mounted in the two positioning clamping grooves 308, the two positioning clamping blocks 309 are fixedly mounted on the U-shaped bracket 300, the U-shaped bracket 300 is pulled downwards, and the U-shaped bracket 300 drives the two positioning clamping blocks 309 to be separated from the two positioning clamping grooves 308 on the guide tube 203.

Further, linkage oil-out structure includes defeated movable vane 401, defeated movable vane 401 fixed mounting is on linkage shaft 400, linkage shaft 400 rotates and installs on guide tube 203, the inner wall fixed mounting of guide tube 203 has two sealing blocks 402, form two oil grooves 403 between two sealing blocks 402, defeated movable vane 401 contacts with the inner wall of two sealing blocks 402, linkage gear 404 is fixed mounting to one end of linkage shaft 400, linkage toothed ring 405 is installed to pressure self-sealing gate valve 100 rotation, linkage toothed ring 405 meshes with linkage gear 404 mutually, linkage toothed ring 405 slidable mounting is on valve lead screw 101, the rotation handle can drive valve lead screw 101 and rotate, valve lead screw 101 can reciprocate when rotating, can drive linkage toothed ring 405 through the cooperation of spacing slider 406 and spacing slider 407 and rotate, and then make pivoted linkage toothed ring 405 rotate through anti-disengaging groove 408 on anti-disengaging ring 409, and can avoid linkage toothed ring 405 to take place the skew in the course, and when valve lead screw 101 reciprocates can drive the movable vane 405 through two spacing sliders and move on two spacing sliders 406 respectively and can drive the movable vane 405 and then the linkage toothed ring 404 simultaneously and can drive the linkage toothed ring 404 and then move along with the linkage toothed ring 404 when the valve lead screw 101 rotates, thereby can drive another linkage toothed ring 404 and can drive the linkage toothed ring to move and move along with the movable vane 101 and then move.

Further, two limiting sliding blocks 406 are fixedly arranged on the inner wall of the linkage toothed ring 405, two limiting sliding grooves 407 are formed in the valve screw rod 101, the two limiting sliding blocks 406 are respectively and slidably arranged in the two limiting sliding grooves 407, and when the valve screw rod 101 moves up and down, the two limiting sliding grooves 407 respectively move on the two limiting sliding blocks 406, so that the valve screw rod 101 can drive the linkage toothed ring 405 to move when rotating.

Further, an anti-drop groove 408 is formed in the linkage toothed ring 405, an anti-drop ring 409 is rotatably mounted in the anti-drop groove 408, the anti-drop ring 409 is fixedly mounted on the pressure self-sealing gate valve 100, and the linkage toothed ring 405 rotates on the anti-drop ring 409 through the anti-drop groove 408, so that the linkage toothed ring 405 is prevented from shifting in the rotation process.

The working principle of the utility model is as follows:

when the pressure self-sealing gate valve 100 is used, the rotating handle can drive the valve screw 101 to rotate, the valve screw 101 can move up and down while rotating, the valve screw 101 can drive the linkage toothed ring 405 to rotate through the cooperation of the limit sliding blocks 406 and the limit sliding grooves 407 when rotating, so that the linkage toothed ring 405 rotates on the anti-falling ring 409 through the anti-falling grooves 408 to avoid the offset in the rotation process of the linkage toothed ring 405, and when the valve screw 101 moves up and down, the two limit sliding grooves 407 respectively move on the two limit sliding blocks 406, when the valve screw rod 101 rotates, the linkage toothed ring 405 can be driven to move, the linkage toothed ring 405 can not move up and down along with the valve screw rod 101, the linkage toothed ring 405 rotates and can drive the linkage gear 404 to rotate, the linkage gear 404 can drive the linkage shaft 400 to rotate, the rotating linkage shaft 400 can drive the oil transportation rotating blades 401 to rotate, thereby the oil transportation rotating blades 401 drive the lubricating oil between the blades to flow and flow out through the other oil delivery groove 403, the flowing lubricating oil can be absorbed by the oil brushing cotton 301, the oil brushing cotton 301 is soaked, the valve screw rod 101 can be uniformly lubricated by the contact of the oil brushing cotton 301 and the valve screw rod 101 when the valve screw rod 101 rotates and moves, the movable plates 302 at two sides can drive the rotating shafts 306 to rotate in the rotating holes 305 through the movable plates 302, the rotating shafts 306 can compress the torsion springs 307 when rotating, the continuously turned movable plate 302 drives the arc clamping strips 303 to separate from the arc clamping grooves 304 on the limiting block 310, at this time, the limitation on the U-shaped bracket 300 can be relieved, then the U-shaped bracket 300 is pulled downwards, the U-shaped bracket 300 drives the two positioning clamping blocks 309 to separate from the two positioning clamping grooves 308 on the guide pipe 203, the continuously moving U-shaped bracket 300 drives the oil brushing cotton 301 to separate from the guide pipe 203, so that the oil brushing cotton 301 can be pulled out of the guide pipe 203, the oil brushing cotton 301 is convenient to replace, during installation, the positioning clamping blocks 309 on the U-shaped bracket 300 are only required to be aligned with the positioning clamping grooves 308 for reinsertion, so that new oil brushing cotton 301 is driven to be reinserted into the guide pipe 203, then the movable plates 302 on two sides are released, at this time, the compressed torsion springs 307 are released and drive the rotating shafts 306 to rotate for resetting, so that the movable plates 302 are driven by the rotating and resetting, the movable plates 302 drive the arc clamping strips 303 to reinsert into the arc clamping grooves 304, and the replacement of the oil brushing cotton 301 is completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. The utility model provides a pressure self-tightening type sealing gate valve, includes pressure self-sealing gate valve (100), be equipped with valve lead screw (101), its characterized in that on pressure self-sealing gate valve (100): two support frames (200) are fixedly installed on the pressure self-sealing gate valve (100), the same oil storage structure is installed on the two support frames (200), a U-shaped bracket (300) is installed on the oil storage structure, an oil brushing structure is fixedly installed on the U-shaped bracket (300), a linkage shaft (400) is installed on the oil storage structure, and a linkage oil outlet structure is installed on the linkage shaft (400).

2. The pressure self-tightening sealing gate valve as claimed in claim 1, wherein: the oil storage structure comprises an oil storage box (201), the oil storage box (201) is fixedly arranged on two supporting frames (200), a sealing cover (202) is arranged on the oil storage box (201) in a threaded mode, a guide pipe (203) is fixedly arranged on the oil storage box (201), and the guide pipe (203) corresponds to the valve screw rod (101).

3. The pressure self-tightening sealing gate valve as claimed in claim 1, wherein: the oil brushing structure comprises oil brushing cotton (301), the oil brushing cotton (301) is fixedly arranged on a U-shaped bracket (300), the oil brushing cotton (301) is movably arranged on the inner wall of a guide pipe (203), the oil brushing cotton (301) is contacted with a valve screw (101), two movable plates (302) are rotatably arranged on the U-shaped bracket (300), arc clamping strips (303) are fixedly arranged on one sides, close to each other, of the two movable plates (302), two limiting blocks (310) are fixedly arranged on the guide pipe (203), arc clamping grooves (304) are respectively formed in the two limiting blocks (310), and the two arc clamping strips (303) are movably arranged in the two arc clamping grooves (304).

4. The pressure self-tightening sealing gate valve as claimed in claim 1, wherein: two rotation holes (305) are formed in the U-shaped bracket (300), two rotating shafts (306) are rotatably arranged in the two rotation holes (305), the two rotating shafts (306) are fixedly arranged on one sides of the two movable plates (302) close to each other respectively, torsion springs (307) are fixedly sleeved on the two rotating shafts (306), one ends of the two torsion springs (307) are fixedly arranged on the inner walls of the two rotation holes (305) respectively, and the other ends of the two torsion springs (307) are fixedly arranged on the two rotating shafts (306) respectively.

5. A pressure self-tightening sealing gate valve as defined in claim 2, wherein: two positioning clamping grooves (308) are formed in the guide pipe (203), positioning clamping blocks (309) are movably mounted in the two positioning clamping grooves (308), and the two positioning clamping blocks (309) are fixedly mounted on the U-shaped bracket (300).

6. The pressure self-tightening sealing gate valve as claimed in claim 1, wherein: the linkage oil outlet structure comprises an oil transportation rotating blade (401), the oil transportation rotating blade (401) is fixedly arranged on a linkage shaft (400), the linkage shaft (400) is rotatably arranged on a guide pipe (203), two sealing blocks (402) are fixedly arranged on the inner wall of the guide pipe (203), two oil transportation grooves (403) are formed between the two sealing blocks (402), the oil transportation rotating blade (401) is contacted with the inner wall of the two sealing blocks (402), a linkage gear (404) is fixedly arranged at one end of the linkage shaft (400), a linkage toothed ring (405) is rotatably arranged on a pressure self-sealing gate valve (100), the linkage toothed ring (405) is meshed with the linkage gear (404), and the linkage toothed ring (405) is slidably arranged on a valve screw (101).

7. The pressure self-tightening sealing gate valve as defined in claim 6, wherein: two limit sliding blocks (406) are fixedly arranged on the inner wall of the linkage toothed ring (405), two limit sliding grooves (407) are formed in the valve screw rod (101), and the two limit sliding blocks (406) are respectively and slidably arranged in the two limit sliding grooves (407).

8. The pressure self-tightening sealing gate valve as defined in claim 6, wherein: an anti-drop groove (408) is formed in the linkage toothed ring (405), an anti-drop ring (409) is rotatably installed in the anti-drop groove (408), and the anti-drop ring (409) is fixedly installed on the pressure self-sealing gate valve (100).