CN217481721U

CN217481721U - Plugging screw plug of natural gas

Info

Publication number: CN217481721U
Application number: CN202220762795.XU
Authority: CN
Inventors: 陈建
Original assignee: Chongqing Dajian Machinery Co ltd
Current assignee: Chongqing Dajian Machinery Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-09-23
Anticipated expiration: 2032-04-02

Abstract

The utility model provides a shutoff plug screw of natural gas relates to plug screw technical field, including the plug screw post, the one end of plug screw post is fixed with the head cap, and the shape of head cap is the hexagon, the inside installing port that has seted up of plug screw post, install the spring in the installing port, the one end welding of spring has the sealing head lid, sealing head lid one end is equipped with the safety cover, and safety cover and sealing head lid threaded connection, safety cover internally mounted has the lamp pearl, be equipped with the fly leaf in the recess of head cap one end, install the button in the recess of head cap one end, be used for improving the leakproofness of plug screw, can be convenient for the staff when being convenient for staff installation operation directly judges the leakage condition of shutoff part natural gas.

Description

Plugging screw plug of natural gas

Technical Field

The utility model relates to a plug screw technical field especially relates to a shutoff plug screw of natural gas.

Background

According to the patent number CN201320404739.X, a screw plug comprises a screw plug body, a ball and a concave end fastening screw of an inner hexagonal cylinder head. Two channels which are communicated with each other are arranged in the plug screw body and are divided into a central through hole and a discharge hole. The central through hole comprises an upper hole and a lower hole which are communicated with each other, the diameter of the upper hole is larger than that of the lower hole, the upper hole and the lower hole are connected through a conical surface, and a ball is arranged at the position of the conical surface. The female end holding screw of the inner hexagonal cylinder head comprises a second inner hexagonal flat end holding screw and a screw rod which are fixedly connected, and a spherical surface is concavely arranged on the lower end surface of the screw rod. The female end holding screw of the inner hexagonal cylinder head is in threaded connection with the upper hole, and the round ball and the concave spherical surface at the lower end of the screw rod are correspondingly arranged. The upper hole is internally and threadedly connected with a first inner hexagonal flat end holding screw which is positioned above the inner hexagonal cylindrical head concave end holding screw. The ball may be a steel ball. And a pure copper sealing gasket is arranged below the boss of the plug screw body. The screw plug is large in bearing sealing pressure, good in sealing effect, high in working efficiency and safer.

The aforesaid patent has introduced the plug screw, but the sealing effect of plug screw is general when the plug screw uses the condition to the natural gas shutoff, and the staff of can't being convenient for looks over whether the natural gas of sealed department leaks.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a plugging screw plug for natural gas.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a shutoff plug screw of natural gas, includes the plug screw post, the one end of plug screw post is fixed with the head cap, and the shape of head cap is the hexagon, the installing port has been seted up to plug screw post inside, install the spring in the installing port, the one end welding of spring has the closure, closure one end is equipped with the safety cover, and safety cover and closure threaded connection, safety cover internally mounted has the lamp pearl, be equipped with the fly leaf in the recess of head cap one end, install the button in the recess of head cap one end.

Preferably, the mounting opening penetrates through the top surface of the head cap, and the surface of the plug screw is provided with a thread groove.

Preferably, the sealing head cover is sleeved on the surface of the head cap, and the inner wall of the sealing head cover is attached to the surface of the head cap.

Preferably, the inner wall of the groove at one end of the head cap is provided with a limit groove, the movable plate is embedded in the limit groove, and the movable plate is matched with the inner wall of the limit groove.

Preferably, the safety cover is transparent material, and the safety cover adopts plastics injection moulding, button and lamp pearl electric connection.

Advantageous effects

In the utility model, when the screw plug needs to block the natural gas, an operator pulls the sealing head cover outwards, the sealing head cover is connected with the screw plug column through the spring, the sealing head cover can be pulled through the flexibility of the spring, the operator aligns the screw plug column to the position needing blocking, the head cap is rotated by the tool, the head cap drives the screw plug column and the sealing head cover to rotate simultaneously, because the sealing head cover is longer than the head cap, after the screw plug column blocks the port needing blocking, the sealing head cover is abutted against the surface of the blocking part, the sealing head cover seals the blocking part through the recovery force of the spring, when the product is in the state of blocking, if the blocking part has natural gas leakage, the gas blows the movable plate in the limiting groove, the movable plate is blown by the leakage gas to move, until the movable plate presses the button in the limiting groove, the lamp bead works to flicker when the button is pressed, the safety cover is transparent material, and whether the condition secondary that the staff can directly look over lamp pearl work through the safety cover judges the leakage that whether natural gas exists in shutoff department, has realized improving the leakproofness of plug screw, can be convenient for when the staff installation operation of being convenient for the staff directly judges the leakage condition of shutoff department natural gas.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is a bottom view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is an enlarged view of a in fig. 3.

Illustration of the drawings:

1. a screw plug column; 2. a head cap; 3. an installation port; 4. a spring; 5. a sealing head cover; 6. a protective cover; 7. a lamp bead; 8. a limiting groove; 9. a movable plate; 10. a button.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, a natural gas plugging screw plug comprises a screw plug column 1, a head cap 2 is fixed at one end of the screw plug column 1, the head cap 2 is hexagonal, a mounting port 3 is formed inside the screw plug column 1, the mounting port 3 penetrates through the top surface of the head cap 2, a thread groove is formed in the surface of the screw plug column 1, a spring 4 is mounted in the mounting port 3, a sealing head cover 5 is welded at one end of the spring 4, the sealing head cover 5 is sleeved on the surface of the head cap 2, the inner wall of the sealing head cover 5 is mutually attached to the surface of the head cap 2, when the screw plug needs to plug natural gas, an operator pulls the sealing head cover 5 outwards, the sealing head cover 5 is connected with the screw plug column 1 through the spring 4, the sealing head cover 5 can be pulled through the flexibility of the spring 4, the operator aligns the screw plug column 1 to a position needing plugging, the head cap 2 is rotated by using a tool, the head cap 2 drives the screw plug column 1 and the sealing head cover 5 to rotate simultaneously, because the seal head cover 5 is longer than the head cap 2, after the screw plug column 1 plugs the opening to be plugged, the seal head cover 5 is abutted against the surface of the plugging part, the recovery force of the spring 4 enables the seal head cover 5 to seal the plugging part, one end of the seal head cover 5 is provided with the protective cover 6, the protective cover 6 is in threaded connection with the seal head cover 5, a lamp bead 7 is arranged in the protective cover 6, a movable plate 9 is arranged in a groove at one end of the head cap 2, a limiting groove 8 is arranged on the inner wall of the groove at one end of the head cap 2, the movable plate 9 is embedded in the limiting groove 8, the movable plate 9 is matched with the inner wall of the limiting groove 8, when the product is in a plugging state, if natural gas leakage occurs at the plugging part, the movable plate 9 in the limiting groove 8 is blown by gas, the movable plate 9 is blown by the leakage gas to move until the movable plate 9 presses the button 10 in the limiting groove 8, and as the weight of the movable plate 9 is lighter, the movable plate 9 can't be pressed button 10 under the normal condition of not having external force, movable plate 9 gomphosis is in the spacing groove 8 of 2 one ends of head cap, behind 1 shutoff of screw plunger post, movable plate 9 does not receive the influence of external wind, install button 10 in the recess of 2 one ends of head cap, safety cover 6 is transparent material, safety cover 6 adopts plastics injection moulding,

button

10 and 7 electric connection of lamp pearl, lamp pearl 7 carries out work when button 10 is pressed and takes place the scintillation, button 10 is electric connection with lamp pearl 7, press lamp pearl 7 and carry out work through circuit board control when button 10, safety cover 6 is transparent material, whether the staff can directly judge the leakage that whether there is the natural gas in the shutoff department through the condition that lamp pearl 7 worked is looked over to safety cover 6.

The utility model discloses a theory of operation: when the natural gas needs to be plugged, an operator pulls the seal head cover 5 outwards, the seal head cover 5 is connected with the screw plug column 1 through the spring 4, the seal head cover 5 can be pulled through the flexibility of the spring 4, the operator aligns the screw plug column 1 to the position needing plugging, the head cap 2 is rotated by using a tool, the head cap 2 drives the screw plug column 1 and the seal head cover 5 to rotate simultaneously, because the seal head cover 5 is longer than the head cap 2, after the screw plug column 1 plugs the opening needing plugging, the seal head cover 5 is propped against the surface of the plugging part, the seal head cover 5 seals the plugging part through the recovery force of the spring 4, when a product is in a plugging state, if the natural gas leakage occurs at the plugging part, the gas blows the movable plate 9 in the limiting groove 8, the movable plate 9 is blown by the leakage gas to move, until the movable plate 9 presses the button 10 in the limiting groove 8, because the weight of fly leaf 9 is lighter, fly leaf 9 can't press button 10 under the normal circumstances of no external force, and fly leaf 9 gomphosis is in the spacing groove 8 of 2 one ends of head cap, behind the shutoff of screw plunger 1, fly leaf 9 does not receive the influence of external wind, lamp pearl 7 carried out work when button 10 is pressed takes place to flash, button 10 is electric connection with lamp pearl 7, press lamp pearl 7 and carry out work through circuit board control when button 10, safety cover 6 is transparent material, whether the staff can directly judge the leakage that whether natural gas exists in shutoff department through the condition that safety cover 6 looked over lamp pearl 7 work.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a shutoff plug screw of natural gas, includes plug screw post (1), its characterized in that: the one end of screw plug post (1) is fixed with first cap (2), and the shape of first cap (2) is the hexagon, screw plug post (1) internally provided has installing port (3), install spring (4) in installing port (3), the one end welding of spring (4) has sealed skull (5), sealed skull (5) one end is equipped with safety cover (6), and safety cover (6) and sealed skull (5) threaded connection, safety cover (6) internally mounted has lamp pearl (7), be equipped with fly leaf (9) in the recess of first cap (2) one end, install button (10) in the recess of first cap (2) one end.

2. A natural gas shutoff plug according to claim 1 and also comprising: the mounting port (3) penetrates through the top surface of the head cap (2), and a thread groove is formed in the surface of the screw plug column (1).

3. A natural gas shutoff plug according to claim 1 and also comprising: the sealing head cover (5) is sleeved on the surface of the head cap (2), and the inner wall of the sealing head cover (5) is attached to the surface of the head cap (2).

4. A natural gas shutoff plug according to claim 1 and also comprising: the inner wall of the groove at one end of the head cap (2) is provided with a limiting groove (8), the movable plate (9) is embedded in the limiting groove (8), and the movable plate (9) is matched with the inner wall of the limiting groove (8).

5. A natural gas shutoff plug according to claim 1 and also comprising: safety cover (6) are transparent material, and safety cover (6) adopt plastics injection moulding, button (10) and lamp pearl (7) electric connection.