CN219102194U - Leak-proof water valve - Google Patents

Abstract

The utility model discloses a leakage-proof water valve which comprises a valve body, wherein a valve core is arranged in the center of the inner side of the valve body, an installation tube is arranged on the upper side of the valve body, a valve rod connected with the valve core is arranged on the inner side of the installation tube, a spring is sleeved on the outer side of the valve rod, a gasket is arranged on the upper side of the spring, a sealing sleeve made of rubber is arranged on the upper side of the gasket, a fixing sleeve is fixedly arranged at the upper end of the installation tube, a plug bush inserted in the installation tube is arranged in the center of the inner side of the fixing sleeve, a conical sleeve opening is arranged at the lower end of the plug bush, a conical part inserted in the conical sleeve opening is arranged at the upper end of the sealing sleeve, the sealing sleeve is sleeved on the valve rod to seal the valve rod, meanwhile, the conical part at the upper end of the sealing sleeve is tightly inserted in the conical sleeve opening under the extrusion of the spring and the gasket, and the inner hole of the sealing sleeve is contracted through the cooperation of the conical part and thus the sealing sleeve is better, even the sealing can be still performed under the abrasion of the valve rod, and the sealing effect is better.

Description

Leak-proof water valve

Technical Field

The utility model relates to the field of valves, in particular to a leakage-proof water valve.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, splitting flow or overflow pressure relief and the like, and in the valve control, the valve core is driven to rotate by the rotation of the valve rod so as to realize the switch control of the valve.

In the valve structure, the valve rod position is often sealed through the sleeved sealing ring to prevent liquid or gas inside the valve from leaking out of the valve rod position, but the sealing ring is easy to wear when the valve rod is rotated for a long time, so that the sealing effect of the sealing ring is affected, and the sealing effect is also insufficient in sealing aspect.

Disclosure of Invention

The utility model aims at solving the problems in the prior art and provides a water leakage prevention valve, which solves the problem that the existing valve is insufficient in sealing.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a leak protection water valve, includes the valve body, the inboard center of valve body is provided with the case, and the upside of valve body is provided with the installation tube, the inboard of installation tube is provided with the valve rod of being connected with the case, and the outside cover of valve rod is equipped with the spring, the upside of spring is provided with the packing ring, and the upside of packing ring is provided with the seal cover that rubber was made, the upper end of installation tube is fixed to be provided with fixed cover, the inboard center of fixed cover is provided with the plug bush of installing in the installation tube, and the lower extreme of plug bush is provided with the toper pocket, the upper end of seal cover is provided with the toper portion of installing in the toper pocket.

Through adopting above-mentioned technical scheme, seal cover is sealed the valve rod on the valve rod, and the toper portion of seal cover upper end is tightly installed in the toper cuff under the extrusion of spring and packing ring simultaneously, thereby makes the hole shrink of seal cover better sealed through the cooperation of toper portion and toper cuff, even still can tighten up sealedly under the wearing and tearing of valve rod, has better sealed effect.

Preferably, the sealing sleeve is provided with a straight section at the lower end of the conical part, and a plurality of sealing rings which are uniformly arranged are arranged in the inner hole of the sealing sleeve.

By adopting the technical scheme, the sealing sleeve seals the valve rod through the sealing ring in the inner hole.

Preferably, the upper end of the valve rod is provided with a rotating handle, and the upper end of the valve rod penetrates through the rotating handle to be fixedly provided with a nut.

By adopting the technical scheme, the valve rod is rotated by the rotary handle, so that the valve core is controlled to rotate.

Preferably, the lower end of the valve rod is provided with a square plug which is inserted on the valve core, and the upper end of the valve rod is provided with a thread head.

Through adopting above-mentioned technical scheme, the valve rod is installed on the case through the plug and is made the installation cooperation of valve rod and case more convenient, also makes things convenient for the change after the rupture of valve rod simultaneously.

Preferably, the inner side of the valve body is provided with a valve cavity, the left side and the right side of the valve body are both provided with pipe joints, and the outer side of the installation pipe is provided with external threads close to the upper end.

By adopting the technical scheme, the valve body is matched with the valve core through the valve cavity and is connected with the pipeline through the pipe joint.

In summary, the utility model has the following advantages:

according to the utility model, the sealing sleeve is sleeved on the valve rod to seal the valve rod, meanwhile, the conical part at the upper end of the sealing sleeve is tightly inserted into the conical sleeve opening under the extrusion of the spring and the gasket, and the inner hole of the sealing sleeve is contracted by the cooperation of the conical part and the conical sleeve opening so as to seal better, so that the sealing can be tightened even under the abrasion of the valve rod, and the sealing effect is better.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

figure 2 is a schematic diagram of a sealing sleeve of the present utility model;

FIG. 3 is a schematic view of a retaining sleeve of the present utility model;

FIG. 4 is a schematic illustration of a valve stem of the present utility model;

fig. 5 is a schematic view of a valve body of the present utility model.

Reference numerals: 1. a valve body; 110. a pipe joint; 120. a valve cavity; 130. installing a pipe; 140. an external thread; 2. a valve core; 3. a valve stem; 31. a plug; 32. a thread head; 4. a fixed sleeve; 41. a plug bush; 42. a conical sleeve opening; 5. a nut; 6. a rotating handle; 7. sealing sleeve; 71. a straight section; 72. a tapered portion; 73. a seal ring; 8. a gasket; 9. and (3) a spring.

Description of the embodiments

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, a leakage-proof water valve comprises a valve body 1, a valve core 2 is arranged at the center of the inner side of the valve body 1, a mounting pipe 130 is arranged at the upper side of the valve body 1, a valve rod 3 connected with the valve core 2 is arranged at the inner side of the mounting pipe 130, a spring 9 is sleeved at the outer side of the valve rod 3, a gasket 8 is arranged at the upper side of the spring 9, a sealing sleeve 7 made of rubber is arranged at the upper side of the gasket 8, a straight section 71 is arranged at the lower end of the sealing sleeve 7, a plurality of uniformly arranged sealing rings 73 are arranged in an inner hole of the sealing sleeve 7, the sealing sleeve 7 seals the valve rod 3 through the sealing rings 73 in the inner hole, the sealing sleeve 7 is sleeved on the valve rod 3, a fixing sleeve 4 is fixedly arranged at the upper end of the mounting pipe 130, a plug bush 41 is arranged at the center of the inner side of the fixing sleeve 4, a conical sleeve opening 42 is arranged at the lower end of the plug bush 41, a conical part 72 is arranged in the conical sleeve opening 42, the conical part 72 is arranged at the upper end of the sealing sleeve 7, the conical part 72 is arranged at the conical part 72, the sealing sleeve 7 is well matched with the conical part 72 through the sealing sleeve opening 72, and the sealing sleeve 7 is better matched with the conical part 72.

Referring to fig. 1 and 4, the upper end of the valve rod 3 is provided with a rotating handle 6, the valve rod 3 is rotated by utilizing the rotating handle 6, thereby controlling the valve core 2 to rotate, the upper end of the valve rod 3 passes through the rotating handle 6 to be fixedly provided with a nut 5, the rotating handle 6 is locked and fixed by the nut 5, the lower end of the valve rod 3 is provided with a square plug 31 which is inserted on the valve core 2, the valve rod 3 is inserted on the valve core 2 through the plug 31, so that the installation and the matching of the valve rod 3 and the valve core 2 are more convenient, meanwhile, the replacement of the valve rod 3 after the breakage is also convenient, the upper end of the valve rod 3 is provided with a thread head 32, and the valve rod 3 is matched with the nut 5 through the thread head 32.

Referring to fig. 5, a valve cavity 120 is provided at the inner side of a valve body 1, the valve body 1 is matched with a valve core 2 through the valve cavity 120, pipe joints 110 are provided at both left and right sides of the valve body 1, the pipe joints 110 are connected with a pipe, external threads 140 are provided at the outer side of a mounting pipe 130 near the upper end, and the mounting pipe 130 uses the external threads 140 and a fixing sleeve 4.

The using method comprises the following steps: when the valve rod 3 is sealed, the spring 9 abuts against the gasket 8, the gasket 8 abuts against the tight sleeve 7, the conical part 72 on the sealing sleeve 7 is tightly inserted into the inner side of the conical sleeve opening 42, the inner hole of the sealing sleeve 7 is in a contracted state under the action of the conical sleeve opening 42, the inner hole of the sealing sleeve 7 is worn under the rotation of the valve rod 3, and the sealing sleeve 7 in the contracted state is compensated in wear at the moment, so that the sealing state is ensured.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a leak protection water valve, includes valve body (1), its characterized in that: the valve is characterized in that a valve core (2) is arranged at the center of the inner side of the valve body (1), a mounting tube (130) is arranged at the upper side of the valve body (1), a valve rod (3) connected with the valve core (2) is arranged at the inner side of the mounting tube (130), a spring (9) is sleeved on the outer side of the valve rod (3), a gasket (8) is arranged at the upper side of the spring (9), a sealing sleeve (7) made of rubber is arranged at the upper side of the gasket (8), a fixing sleeve (4) is fixedly arranged at the upper end of the mounting tube (130), a plug bush (41) is arranged at the center of the inner side of the fixing sleeve (4), a conical sleeve opening (42) is arranged at the lower end of the plug bush (41), and a conical part (72) arranged in the conical sleeve opening (42) is arranged at the upper end of the sealing sleeve (7).

2. The leak resistant water valve as set forth in claim 1, wherein: the sealing sleeve (7) is positioned at the lower end of the conical part (72) and is provided with a straight section part (71), and a plurality of sealing rings (73) which are uniformly arranged are arranged in an inner hole of the sealing sleeve (7).

3. The leak resistant water valve as set forth in claim 1, wherein: the upper end of the valve rod (3) is provided with a rotating handle (6), and the upper end of the valve rod (3) penetrates through the rotating handle (6) to be fixedly provided with a nut (5).

4. A leak resistant water valve as defined in claim 3, wherein: the lower end of the valve rod (3) is provided with a square plug (31) which is inserted on the valve core (2), and the upper end of the valve rod (3) is provided with a thread head (32).

5. The leak resistant water valve as set forth in claim 1, wherein: the inside of valve body (1) is provided with valve pocket (120), and the left and right sides of valve body (1) all is provided with coupling (110), the outside of installation pipe (130) is provided with external screw thread (140) near upper end position.

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