CN215950519U - Valve cover for valve body with prevent leaking function - Google Patents

Abstract

The utility model provides a valve cover with a leakage-proof function for a valve body, which comprises an inner wall column, a screw rod, a connecting block, a valve port and a valve body, wherein the valve port is welded above the valve body, the connecting block is arranged on the valve port, a built-in cavity is arranged above the connecting block, the top of the built-in cavity is provided with a nut, the bottom of the screw rod is provided with a first pressing block, a first rubber pad is arranged below the first pressing block, the top of the screw rod is welded with a crank handle, a hand crank handle is arranged above the crank handle, the inner wall column is arranged on the inner wall of the built-in cavity, the right side of a piston column is provided with a second pressing block, a second rubber pad is arranged between the second pressing block and the piston column, the left side of the piston column is provided with a pressing head, and a spring is sleeved between the pressing head and the piston column, and compared with the prior art, the valve cover has the following beneficial effects: this design not only can set up corresponding and prevent leaking the structure, prevents that gas or liquid from spilling, has still set up reserve pressure release structure, prevents that pipeline or valve body from causing the damage because of internal pressure is too big.

Description

Valve cover for valve body with prevent leaking function

Technical Field

The utility model discloses a valve cover with a leakage-proof function for a valve body, and belongs to the technical field of valve body auxiliary devices.

Background

At present, a valve body is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, is a control part in a fluid conveying system, and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting, overflowing and relieving pressure and the like. The valve cover is a valve part provided with a valve rod sealing element and used for connecting or supporting an actuating mechanism, the valve cover and the valve body can be integrated or separated, and the valve cover in the gate valve mainly plays a role of pressing packing.

Valve gap among the prior art lacks and prevents leaking the function, takes place easily to leak the phenomenon in gaseous or liquid transportation, at gaseous or liquid transportation's in-process, because it is longer to transport the distance, gaseous or liquid collision oneself each other can increase the pressure of pipeline inevitably, the too big potential safety hazard that forms easily of pressure of pipeline, and do not be equipped with corresponding pressure release structure in the current valve gap, just probably because of too big destruction valve body or pipeline of internal pressure, the valve gap for the valve body that has the function of preventing leaking now urgently needed to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the valve cover for the valve body with the leakage-proof function, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the valve cover with the leakage-proof function for the valve body comprises a leakage-proof mechanism, a pressure relief assembly, a valve port and a valve body, wherein the valve port is welded above the valve body, the leakage-proof mechanism is arranged above the valve port, the pressure relief assembly is arranged in the leakage-proof mechanism, the leakage-proof mechanism comprises a hand-operated handle, a crank, a screw rod, a nut, a first pressing block, a first rubber pad, a connecting block and a built-in cavity, the connecting block is arranged above the valve port, the built-in cavity is arranged above the connecting block, the nut is arranged at the top of the built-in cavity, the screw rod is arranged in the built-in cavity, the first pressing block is installed at the bottom of the screw rod, the first rubber pad is arranged below the first pressing block, the crank is welded at the top of the screw rod, and the hand-operated handle is installed above the crank.

Further, the pressure release subassembly includes press head, piston post, spring, second rubber pad, second briquetting and interior pilaster, interior pilaster sets up at built-in cavity inner wall, interior pilaster runs through to install the piston post, the second briquetting is installed on piston post right side, be provided with the second rubber pad between second briquetting and the piston post, the press head is installed in piston post left side, the cover is equipped with the spring between press head and the piston post.

Furthermore, the built-in cavity is provided with an internal thread, the valve port is provided with an external thread, the external diameter of the internal thread is the same as the internal diameter of the external thread, the diameter of the valve port is smaller than that of the built-in cavity, and the valve port is hermetically connected with the built-in cavity.

Further, the length of the screw rod is larger than the distance between the inner wall column and the top of the built-in cavity, and the outer diameter of the screw rod is matched with the inner diameter of the nut.

Furthermore, the inner wall columns are provided with two groups, the specifications of the two groups of inner wall columns are the same and are symmetrically installed, small holes are formed in the inner wall columns, the diameters of the small holes are equal to the diameters of the piston columns, and the diameters of the second pressing blocks are larger than the diameters of the small holes.

Further, the spring is in a compressed state.

The utility model has the beneficial effects that: the valve cover for the valve body with the leakage-proof function is characterized in that a hand-operated handle, a rocking handle, a screw rod, a nut, a first pressing block, a first rubber pad, a connecting block, a pressing head, a piston column, a spring, a second rubber pad, a second pressing block and an inner wall column are additionally arranged, the hand-operated handle is convenient for people to control the rotation of the rocking handle, the rocking handle rotates to drive the screw rod to rotate, the screw rod and the nut move in a matched mode, the first pressing block moves downwards to help the first rubber pad to seal a gap between the two groups of inner wall columns and prevent gas or liquid from leaking, the connecting block can be taken out through rotation at any time, a worker can conveniently communicate with another valve port pipeline, the piston column moves rightwards through pressing the pressing head, the spring is compressed and deformed, the second rubber pad is far away from the inner wall column, the second rubber pad loses the sealing of the inner wall column, redundant pressure in the built-in cavity is discharged, and the pipeline or the valve body is prevented from being damaged due to overlarge pressure, when not needing to its pressure release, the spring can convert elastic potential energy into the kinetic energy of second briquetting, and the sealed inner wall post prevents that gas or liquid from leaking, and this design not only can set up corresponding anti-leakage structure, prevents that gas or liquid from spilling, has still set up reserve pressure release structure, prevents that pipeline or valve body from leading to the fact the damage because of internal pressure is too big.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a valve cover for a valve body according to the present invention, which has a leakage prevention function;

fig. 2 is a front sectional view of a valve cover for a valve body having a leakage preventing function according to the present invention;

fig. 3 is a plan view of a valve cover for a valve body according to the present invention, which has a leakage prevention function;

in the figure: 1-leakage prevention mechanism, 11-hand handle, 12-rocking handle, 13-screw rod, 14-nut, 15-first pressing block, 16-first rubber pad, 17-built-in cavity, 18-connecting block, 2-pressure relief component, 21-pressing head, 22-piston column, 23-spring, 24-second rubber pad, 25-second pressing block, 26-inner wall column, 3-valve port and 4-valve body.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a valve gap for valve body 4 with prevent leaking function, including preventing leaking mechanism 1, pressure release subassembly 2, valve port 3 and valve body 4, the welding has valve port 3 above valve body 4, be provided with above the valve port 3 and prevent leaking mechanism 1, prevent being provided with pressure release subassembly 2 in the mechanism 1, prevent leaking mechanism 1 and include handle 11, crank 12, lead screw 13, nut 14, first briquetting 15, first rubber pad 16, connecting block 18 and built-in cavity 17, connecting block 18 sets up above valve port 3, built-in cavity 17 is installed in connecting block 18 top, built-in cavity 17 top is provided with nut 14, lead screw 13 sets up in built-in cavity 17, first briquetting 15 is installed to lead screw 13 bottom, be provided with first rubber pad 16 below first briquetting 15, the welding of lead screw 13 top has crank 12, handle 11 is installed to handle 12 top.

Pressure release subassembly 2 includes press head 21, piston post 22, spring 23, second rubber pad 24, second briquetting 25 and interior wall post 26, and interior wall post 26 sets up at built-in cavity 17 inner wall, and interior wall post 26 runs through to install piston post 22, and second briquetting 25 is installed to piston post 22 right side, is provided with second rubber pad 24 between second briquetting 25 and the piston post 22, and press head 21 is installed in piston post 22 left side, and the cover is equipped with spring 23 between press head 21 and the piston post 22.

The built-in cavity 17 is provided with internal threads, the valve port 3 is provided with external threads, the external diameter of the internal threads is the same as the internal diameter of the external threads, the design can facilitate a worker to take down the built-in cavity 17 when the valve port 3 needs to be subjected to pipeline transformation, the diameter of the valve port 3 is smaller than the diameter of the built-in cavity 17, the valve port 3 is hermetically connected with the built-in cavity 17, the design can enable gas in a pipeline to enter the built-in cavity, the length of the screw rod 13 is larger than the distance between the inner wall columns 26 and the top of the built-in cavity 17, the design is to enable the first pressing block 15 to press the first rubber pad 16 to enable the built-in cavity 17 not to leak the gas, the external diameter of the screw rod 13 is matched with the internal diameter of the nut 14, two groups of the inner wall columns 26 are arranged, the specifications of the two groups of the inner wall columns 26 are the same and are symmetrically arranged, the diameter of the inner wall columns 26 is equal to that of the piston column 22, and the diameter of the second pressing block 25 is larger than that of the small hole, the spring 23 is in a compressed state, and the design can enable the spring 23 to enable the second pressing block 25 to press the second rubber pad 24 in a natural state, so that the gas leakage of the internal cavity 17 is prevented.

As an embodiment of the present invention: when a worker does not ventilate a pipeline or liquid, and needs to seal one valve port 3 of the valve body 4, through rotating the connecting block 18, internal threads arranged in the connecting block 18 are matched with external threads arranged on the valve port 3, the connecting block 18 is arranged above the valve port 3, the valve port 3 is hermetically connected with the built-in cavity 17, gas or liquid in the valve body 4 can enter the built-in cavity 17 through the valve port 3, in order to prevent gas or liquid leakage, the worker holds the handle 11 by hand to rotate, the crank 12 is rotated to drive the screw rod 13 to rotate, the screw rod 13 is matched with the nut 14 to move, the screw rod 13 moves downwards to drive the first pressing block 15 and the first rubber gasket to move downwards until the first rubber gasket contacts the inner wall column 26 and completely seals the two groups of inner wall columns 26, and at the time, the gas or liquid in the built-in cavity 17 cannot leak and can be remained in the built-in cavity 17, in the process, because the spring 23 is in a compressed state, the piston column 22 is forced to receive a leftward force, so that the second pressing block 25 connected with the piston column 22 presses the second rubber pad 24 to seal the inner wall column 26, and the whole built-in cavity 17 is completely in a sealed state;

the pressure in the pipeline can be increased by self collision in the gas or liquid transportation process, so that safety accidents are easily caused by the increase of the pressure in the pipeline, the pipeline needs to be decompressed, the pressing head 21 is pressed, the spring 23 is compressed and deformed, the piston column 22 moves rightwards, the second pressing block 25 drives the second rubber pad 24 to move rightwards, and at the moment, no complete sealing relation exists between the inner wall column 26 and the piston column 22, namely, the pressure in the pipeline is discharged.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a valve gap for valve body with prevent leaking function, includes prevents leaking mechanism, pressure release subassembly, valve port and valve body, its characterized in that: a valve port is welded above the valve body, an anti-leakage mechanism is arranged on the valve port, and a pressure relief assembly is arranged in the anti-leakage mechanism;

prevent leaking mechanism and include hand handle, rocking handle, lead screw, nut, first briquetting, first rubber pad, connecting block and built-in cavity, the connecting block sets up on the valve port, built-in cavity installs in the connecting block top, built-in cavity top is provided with the nut, the lead screw sets up in built-in cavity, first briquetting is installed to the lead screw bottom, be provided with first rubber pad below the first briquetting, the welding of lead screw top has the rocking handle, the hand handle is installed to the rocking handle top.

2. A valve cover for a valve body having a leakage preventing function according to claim 1, wherein: the pressure release subassembly includes press head, piston post, spring, second rubber pad, second briquetting and interior pilaster, interior pilaster sets up at built-in cavity inner wall, interior pilaster runs through to install the piston post, the second briquetting is installed on piston post right side, be provided with the second rubber pad between second briquetting and the piston post, the press head is installed in piston post left side, the cover is equipped with the spring between press head and the piston post.

3. A valve cover for a valve body having a leakage preventing function according to claim 1, wherein: the valve port is connected with the built-in cavity in a sealing mode.

4. A valve cover for a valve body having a leakage preventing function according to claim 1, wherein: the length of the screw rod is greater than the distance between the inner wall column and the top of the built-in cavity, and the outer diameter of the screw rod is matched with the inner diameter of the nut.

5. A valve cover for a valve body having a leakage preventing function according to claim 2, wherein: the inner wall columns are arranged in two groups, the specifications of the two groups of inner wall columns are the same and are symmetrically installed, small holes are formed in the inner wall columns, the diameters of the small holes are equal to the diameters of the piston columns, and the diameters of the second pressing blocks are larger than the diameters of the small holes.

6. A valve cover for a valve body having a leakage preventing function according to claim 2, wherein: the spring is in a compressed state.

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