CN219529948U - Gate valve is detained to nonrust steel wire - Google Patents

Abstract

The utility model discloses a stainless steel wire buckle gate valve, which structurally comprises: the valve body is connected to a valve cover at the upper end of the valve body, a hand wheel is arranged at the top of the valve cover, a runner penetrating through the left end and the right end for a medium to pass through is arranged at the top of the valve cover, a pre-tightening device is respectively arranged at the two ends of the runner, the pre-tightening device comprises a connecting cylinder which is coaxially arranged with the runner and slides along the length direction of the runner, a first clamping ring which is coaxially arranged at one end of the connecting cylinder far away from the opening of the runner is arranged, and a second clamping ring is arranged at the other end of the connecting cylinder.

Description

Gate valve is detained to nonrust steel wire

Technical Field

The utility model relates to a stainless steel wire buckle gate valve, and belongs to the technical field of valves.

Background

The gate valve is opened and closed by a gate plate, the moving direction of the gate plate is vertical to the fluid direction, the gate valve can only be fully opened and fully closed and can not be regulated and throttled, a valve rod nut is arranged on the gate plate, and a hand wheel rotates to drive a valve rod to rotate so as to enable the gate plate to ascend;

the patent number is: the patent document of CN214888970U discloses an improved brass screw encryption gate valve, which comprises a brass screw valve body, a valve cover arranged on the brass screw valve body, a gate plate which is arranged in the brass screw valve body in a lifting manner and used for controlling fluid to pass through the brass screw valve body, and a valve rod which is arranged on the valve cover in a rotatable manner and used for driving the gate plate to lift;

the following disadvantages still exist in the practical application process: when the existing screw-thread gate valve is installed, a pipeline in a pipe network is connected with an inlet and an outlet of a valve body respectively, the pipeline is connected with the valve body through threads, and in the use process, loosening and retreating of the threaded connection of the pipeline and the valve body are easily caused along with water hammer vibration, pipeline resonance and the like, so that leakage of a medium of the pipeline is caused.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a stainless steel wire-buckled gate valve, which solves the problems that when the existing wire-buckled gate valve is installed, a pipeline in a pipe network is connected with an inlet and an outlet of a valve body respectively, the pipeline is connected with the valve body through threads, and in the use process, the threads of the pipeline and the threads of the valve body are easily loosened along with the vibration of a water hammer, the resonance of the pipeline and the like, so that the leakage of a medium of the pipeline is caused.

In order to achieve the above object, the present utility model is realized by the following technical scheme: a stainless steel wire buckle gate valve structurally comprises: the valve body, connect in the valve gap of valve body upper end, the valve gap top is equipped with the hand wheel, the valve body is equipped with the runner that runs through both ends and supplies the medium to pass through about, the both ends of runner are equipped with preloading device respectively, preloading device includes and sets up and follow runner length direction gliding connecting cylinder with the runner is coaxial, the one end that runner opening part was kept away from to the connecting cylinder has coaxial first snap ring that sets up, and the other end is equipped with the second snap ring, the runner corresponds and is equipped with first snap ring, the gliding first guide rail of second snap ring, the second guide rail of supply, be equipped with connecting portion between first guide rail, the second guide rail, connecting cylinder outside cover is equipped with the spring, the spring is in between connecting portion and the second snap ring.

Preferably, two first sealing rings are respectively sleeved on the outer sides of the first clamping ring and the second clamping ring.

Preferably, the connecting part is provided with a plurality of limiting protrusions extending towards the connecting cylinder, and the side wall of the connecting cylinder is provided with a sliding groove correspondingly matched with each limiting protrusion.

Preferably, the second guide rail extends inwardly from the root of the internal thread of the flow passage.

Preferably, a fixing groove is formed in one side, facing the first clamping ring, of the second clamping ring.

Preferably, a second sealing ring is arranged at one end, facing the valve core, of the first clamping ring, and a third sealing ring is arranged at one end, facing the opening of the flow passage, of the second clamping ring.

Preferably, chamfers extending from the inner wall of the runner to the inner wall of the connecting cylinder are respectively arranged on the inner sides of the first clamping ring and the second clamping ring.

Advantageous effects

The stainless steel wire buckle gate valve has the following effects:

according to the utility model, the pre-tightening device is arranged, after the pipe network pipeline is installed, the spring always generates the outward moving thrust to the second clamping ring, so that the second clamping ring generates the pre-tightening force for pushing the pipeline to move outwards, thereby increasing the friction between the external threads of the pipeline and the internal threads of the runner, improving the vibration resistance of the threaded connection of the pipeline and the valve body, preventing the threaded connection of the pipeline and the valve body from loosening and preventing the medium from leaking.

Drawings

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

FIG. 1 is a schematic view of a stainless steel wire clasp gate valve according to the present utility model;

FIG. 2 is a schematic view of the assembly of the valve body and the pretensioning apparatus of the present utility model;

FIG. 3 is a schematic view of a valve body of the present utility model in partial cross-section;

FIG. 4 is a schematic structural view of the pretensioning apparatus of the present utility model;

FIG. 5 is a schematic cross-sectional view of the pretensioning apparatus of the present utility model;

FIG. 6 is a schematic view of the structure of A-A of FIG. 2 according to the present utility model;

FIG. 7 is a schematic diagram of the pre-tightening device of the pipe network after the pipe network is completely screwed in.

In the figure: the valve comprises a valve body-1, a runner-11, a first guide rail-12, a second guide rail-13, a connecting part-14, a limiting protrusion-141, a valve cover-2, a hand wheel-3, a pre-tightening device-4, a connecting cylinder-41, a sliding chute-411, a first clamping ring-42, a second clamping ring-43, a fixing groove-431, a spring-44, a first sealing ring-45, a second sealing ring-46 and a third sealing ring-47.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1-5, the present utility model provides a technical solution for a stainless steel wire buckle gate valve, which includes: the valve body 1, connect in the valve gap 2 of valve body 1 upper end, valve gap 2 top is equipped with hand wheel 3, valve body 1 is equipped with the runner 11 that runs through both ends confession medium and pass through about, the both ends of runner 11 are equipped with preloading device 4 respectively, preloading device 4 includes with runner 11 coaxial setting and along runner 11 length direction gliding connecting cylinder 41, the one end that runner 11 opening part was kept away from to connecting cylinder 41 has coaxial setting's first snap ring 42, and the other end is equipped with second snap ring 43, runner 11 corresponds and is equipped with first snap ring 42, second snap ring 43 gliding first guide rail 12, second guide rail 13 of supply, be equipped with connecting portion 14 between first guide rail 12, the second guide rail 13, connecting cylinder 41 outside cover is equipped with spring 44, spring 44 is in between connecting portion 14 and the second snap ring 43.

The two ends of the runner 11 are respectively provided with an internal thread connected with the external thread of the pipe network pipeline, the inward end of the internal thread of the runner 11 is defined as the root, and the outward end is defined as the end.

When the existing screw gate valve is installed, the pipeline in the pipe network is connected with the inlet and the outlet of the valve body respectively, the pipeline is connected with the valve body through threads, in the use process, the threads of the pipeline are easily connected with the threads of the valve body along with vibration of a water hammer, resonance of the pipeline and the like, so that leakage of media of the pipeline occurs, and accordingly, the pre-tightening devices 4 are respectively arranged at two ends of the inner thread root of the flow channel of the valve body, when the pipe network pipeline is connected with the valve body 1, the external threads of the pipeline are connected with the internal threads of the flow channel 11 and screwed in, in the screwing process, the end face of the pipeline is contacted with the end face of the second clamping ring 43, the pipeline pushes the second clamping ring 43 to move inwards to the flow channel 11 along with the continuous screwing of the pipeline, meanwhile, the second clamping ring 43 presses the springs 44 inwards along the second guide rail 13 and drives the connecting cylinder 41 to move synchronously, and the first clamping ring 42 moves inwards along the first guide rail 12.

Since the connecting tube 41 has a through groove formed therein, and both ends of the through groove communicate with the flow passage 11, the medium is fed through the flow passage 11 of the valve body 1 and the through groove of the connecting tube 41 after entering the gate valve.

As shown in fig. 4-5, two first sealing rings 45 are respectively sleeved on the outer sides of the first clamping ring 42 and the second clamping ring 43, so that the sealing performance between the first clamping ring 42 and the second clamping ring 43 and the first guide rail 12 and the second guide rail 13 is improved, and leakage of liquid from gaps between the first clamping ring 42 and the second clamping ring 43 and the first guide rail 12 and between the second clamping ring 43 and the second guide rail 13 to the outer side of the connecting cylinder 41 is avoided, and further rust of the springs 44 is caused.

As shown in fig. 2 and 5-6, in order to avoid that the second clamping ring 43 is driven to rotate during the screwing-in and unscrewing process of the pipeline, and the connecting cylinder 41 and the second clamping ring 43 synchronously rotate, so that the sealing performance of the first sealing ring 45 is reduced or the service life is shortened, the connecting portion 14 is provided with a plurality of limiting protrusions 141 extending towards the connecting cylinder 41, and the side wall of the connecting cylinder 41 is provided with a sliding groove 411 correspondingly matched with each limiting protrusion 141, so that when the connecting cylinder 41 moves along the flow channel 11 along with the second clamping ring 43, the limiting protrusions 141 synchronously slide along the sliding groove 411, and the connecting cylinder 41, the first clamping ring 42 and the second clamping ring 43 are ensured to horizontally move along the flow channel 11.

As shown in fig. 3, the second guide rail 13 extends inward from the root of the internal thread of the flow channel 11, so as to ensure that the thread of the pipe can be completely screwed into the internal thread of the flow channel 11, and meanwhile, after the pipe is completely screwed into the flow channel, the second clamping ring 43 is completely embedded into the second guide rail 13, and the end face of the second clamping ring 43 and the end face of the pipe are kept in a compressed state.

As shown in fig. 5, a fixing groove 431 is further formed on a side of the second snap ring 43 facing the first snap ring 42, and when the second snap ring 43 is inserted into the second rail 13, the spring 44 is compressed and accommodated in the fixing groove 431.

As shown in fig. 4-5, the end of the first clamping ring 42 facing the valve core is provided with a second sealing ring 46, the end of the second clamping ring 43 facing the opening of the flow channel 11 is provided with a third sealing ring 47, and when in use, the sealing performance between the first clamping ring 42 and the first guide rail 12 in the flow channel 11 is further enhanced through the second sealing ring 46, and the sealing performance between the second clamping ring 43 and the second guide rail 13 and between the second clamping ring 43 and the pipeline is further enhanced through the third sealing ring 47, so that leakage of a medium is prevented.

As shown in fig. 5, chamfers extending from the inner wall of the runner 11 to the inner wall of the connecting cylinder 41 are respectively provided on the inner sides of the first snap ring 42 and the second snap ring 43, so that the medium can be conveniently and rapidly transported in the through groove, the impact of the liquid medium on the first snap ring 42 or the second snap ring 43 is reduced, and the service life of the pre-tightening device 4 is prolonged.

The foregoing has described only the basic principles and preferred embodiments of the present utility model, and many variations and modifications will be apparent to those skilled in the art in light of the above description, which variations and modifications are intended to be included within the scope of the present utility model.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. A stainless steel wire buckle gate valve structurally comprises: valve body (1), connect in valve gap (2) of valve body (1) upper end, valve gap (2) top is equipped with hand wheel (3), its characterized in that: the utility model discloses a valve body, including valve body (1), runner (11) that both ends supply the medium to pass through about being equipped with, the both ends of runner (11) are equipped with preloading device (4) respectively, preloading device (4) include with runner (11) coaxial setting and follow runner (11) length direction gliding connecting cylinder (41), connecting cylinder (41) keep away from runner (11) opening part's one end has first snap ring (42) of coaxial setting, and the other end is equipped with second snap ring (43), runner (11) correspond and are equipped with first snap ring (42), second snap ring (43) gliding first guide rail (12), second guide rail (13), be equipped with connecting portion (14) between first guide rail (12), second guide rail (13), connecting cylinder (41) outside cover is equipped with spring (44), spring (44) are in between connecting portion (14) and second snap ring (43).

2. A stainless steel wire clasp gate valve according to claim 1, wherein: two first sealing rings (45) are respectively sleeved on the outer sides of the first clamping ring (42) and the second clamping ring (43).

3. A stainless steel wire clasp gate valve according to claim 1, wherein: the connecting part (14) is provided with a plurality of limiting protrusions (141) extending towards the connecting cylinder (41), and the side wall of the connecting cylinder (41) is provided with a sliding groove (411) correspondingly matched with each limiting protrusion (141).

4. A stainless steel wire clasp gate valve according to claim 1, wherein: the second guide rail (13) extends inwards from the root of the internal thread of the runner (11).

5. A stainless steel wire clasp gate valve according to claim 1, wherein: a fixing groove (431) is formed in one side, facing the first clamping ring (42), of the second clamping ring (43).

6. A stainless steel wire clasp gate valve according to claim 1, wherein: the first clamping ring (42) is provided with a second sealing ring (46) towards one end of the valve core, and one end of the second clamping ring (43) towards the opening of the flow channel (11) is provided with a third sealing ring (47).

7. A stainless steel wire clasp gate valve according to any one of claims 1-6, wherein: and chamfers extending from the inner wall of the runner (11) to the inner wall of the connecting cylinder (41) are respectively arranged on the inner sides of the first clamping ring (42) and the second clamping ring (43).