Industrial gas filling joint

Abstract

The utility model discloses an industrial gas filling joint, particularly relates to the technical field of gas joints, and provides the following scheme aiming at the problems that a connecting structure of an existing filling joint and a pipeline is too simple and is easy to fall off during pulling, the industrial gas filling joint comprises a sleeve, a connecting pipe and a sliding ring, the connecting pipe is arranged in one end of the sleeve, and the sliding ring is arranged in the other end of the sleeve. A sliding ring is arranged on the outer wall of the end, close to the interior of the sleeve, of the connecting pipe, an extrusion spring is arranged at the end, away from the connecting pipe, of the sliding ring, and multiple extrusion pieces surround the side, close to the connecting pipe, of the inner wall of the sliding ring. Connecting threads are arranged at the end, away from the connecting pipe, of the outer wall of a sleeve used for connection, a surrounding groove is formed in the inner wall of the sleeve in a surrounding mode, and the surrounding groove and the outer wall of the sliding ring slide mutually. And the outer wall of the connecting pipe for connection is fixedly connected with the sliding ring. The utility model has the advantages that the pipeline can be conveniently connected, and looseness and separation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas joints, in particular to an industrial gas filling joint. Background Art

[0002] Efficient and safe filling of mixed gases, involving argon, carbon dioxide, nitrogen, pure or mixed filling into gas cylinders. Gas cylinder filling is divided into three categories: permanent gas, liquefied gas and dissolved gas filling. During the gas filling process, the pipe and the gas cylinder need to be connected through the filling joint.

[0003] However, in actual use, the filling joint needs to be connected to the corresponding delivery pipe and then delivered to the corresponding container. At the same time, the traditional rubber tube connection method usually uses a socket structure, which is squeezed through a fixed structure on the outside. The simple socket structure is easy to fall off when pulled and moved. Utility Model Content

[0004] The utility model aims to provide an industrial gas filling joint, which solves the problem that the connection structure between the existing filling joint and the pipeline is too simple and is easy to fall off when pulled.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an industrial gas filling joint, comprising a sleeve, a connecting pipe and a sliding ring, wherein a connecting pipe is arranged inside one end of the sleeve, a sliding ring is arranged on the outer wall of one end of the connecting pipe close to the inside of the sleeve, an extrusion spring is arranged on the end of the sliding ring away from the connecting pipe, and a plurality of extrusion sheets are arranged around the inner wall of the sliding ring close to the connecting pipe;

[0006] The outer wall of the sleeve used for connection is provided with a connecting thread at one end away from the connecting pipe, and the inner wall of the sleeve is provided with a surrounding groove, and the surrounding groove and the outer wall of the sliding ring slide with each other;

[0007] The outer wall of the connecting pipe used for connection is fixedly connected to the sliding ring, and the bottom of the sliding ring is provided with an extrusion surface inclined outward on one side close to the connecting pipe;

[0008] The top of the extrusion sheet used for extrusion and fixing is fitted with the extrusion surface of the bottom side wall of the sliding ring, and the end of the extrusion sheet away from the sliding ring rotates with the inside of the surrounding groove through the connecting shaft.

[0009] Preferably, a fixing knob is fixedly connected to one end of the outer wall of the sleeve close to the connecting pipe, and a clamping groove is formed around the outer wall of one end of the sleeve away from the connecting pipe.

[0010] Preferably, one end of the extrusion spring is fitted and connected to one end of the sliding ring, and the end of the extrusion spring away from the sliding ring is fixedly connected to the side wall of the inner part of the surrounding groove away from one end of the connecting pipe.

[0011] Preferably, the extrusion sheet is arc-shaped and corresponds to the outer wall of the connecting tube, and the connecting shaft is rotatably connected to the center of one end of the extrusion sheet. A torsion spring is arranged inside the connecting shaft, and the connecting shaft drives the end of the extrusion sheet close to the sliding ring to tilt toward the outer wall of the sleeve through the torsion spring.

[0012] Preferably, a plurality of inclined plates are arranged around the outer wall of one end of the connecting tube away from the sleeve, and the inclined plates are inclined toward one side of the sleeve, and a conical surface is arranged inclined toward the center at one end of the connecting tube away from the sleeve.

[0013] Preferably, the interior of the connecting pipe is communicated with the interior of the sleeve, and a sliding surface is provided on the inner wall of one end of the sleeve close to the connecting pipe and inclined outward.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] The sliding ring moves to compress the extrusion spring, so that the pipe can be inserted into the interior of the sleeve, so that the pipe is located between the extrusion piece and the connecting pipe. When the sleeve connection is completed, the push on the connecting pipe can be released. At this time, the push on the sliding ring can be released. At this time, it can be driven to move in the opposite direction under the action of the extrusion spring, so that the sliding ring moves to squeeze the extrusion piece, so that the extrusion piece is driven to tilt toward one side of the connecting pipe, so that it and the pipe on the outer wall of the connecting pipe are squeezed and fit each other. At the same time, since the extrusion piece is inclined, when the pipe is pulled, the extrusion piece can be driven to further squeeze toward the connecting pipe, so that the extrusion of the pipe is tighter, which can effectively keep the pipe fixed and avoid falling off when moving in the reverse direction. At the same time, since the inclined piece is inclined to one side of the sleeve, it can also facilitate the movement of the pipe sleeve, and then block it in its reverse movement to avoid falling off, thereby effectively maintaining the connection of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 This is a cross-sectional view of the internal structure of the utility model;

[0020] Figure 4This is a cross-sectional view of the internal structure of the sliding ring of the utility model;

[0021] Figure 5 It is a cross-sectional view of the sleeve structure of the utility model.

[0022] Description of reference numerals:

[0023] 1. Sleeve; 101. Connecting thread; 102. Fixing knob; 103. Snap-in groove; 104. Surrounding groove; 105. Sliding surface; 2. Connecting tube; 201. Inclined sheet; 202. Conical surface; 3. Sliding ring; 301. Extrusion surface; 4. Extrusion spring; 5. Extrusion sheet; 501. Connecting shaft. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-Figure 5 An industrial gas filling joint shown in the figure comprises a sleeve 1, a connecting pipe 2 and a sliding ring 3, wherein a connecting pipe 2 is arranged inside one end of the sleeve 1, a sliding ring 3 is arranged on the outer wall of the end of the connecting pipe 2 close to the inside of the sleeve 1, an extrusion spring 4 is arranged on the end of the sliding ring 3 away from the connecting pipe 2, and a plurality of extrusion sheets 5 are arranged around the inner wall of the sliding ring 3 close to the connecting pipe 2; a connecting thread 101 is arranged on the end of the outer wall of the sleeve 1 away from the connecting pipe 2 for connection, and a surrounding groove 104 is arranged around the inner wall of the sleeve 1, and the surrounding groove 104 and the outer wall of the sliding ring 3 slide with each other; the outer wall of the connecting pipe 2 for connection and the sliding ring 3 are fixedly connected to each other, and an extrusion surface 301 is arranged on the bottom of the sliding ring 3 close to the side of the connecting pipe 2 and inclined outwardly; the top of the extrusion sheet 5 for extrusion and fixing fits with the extrusion surface 301 of the bottom side wall of the sliding ring 3, and the end of the extrusion sheet 5 away from the sliding ring 3 rotates with the inside of the surrounding groove 104 through the connecting shaft 501.

[0026] like Figure 3 , Figure 5 As shown, a fixing knob 102 is fixedly connected to one end of the outer wall of the sleeve 1 close to the connecting pipe 2, a clamping groove 103 is arranged around the outer wall of the end of the sleeve 1 away from the connecting pipe 2, the interior of the connecting pipe 2 is connected to the interior of the sleeve 1, and a sliding surface 105 is arranged on the inner wall of the end of the sleeve 1 close to the connecting pipe 2 inclined outward.

[0027] like Figure 3 , Figure 4As shown, one end of the extrusion spring 4 is fitted and connected with one end of the sliding ring 3, and the end of the extrusion spring 4 away from the sliding ring 3 is fixedly connected with the side wall of the inner part of the surrounding groove 104 away from the end of the connecting pipe 2, the extrusion sheet 5 is arc-shaped and corresponds to the outer wall of the connecting pipe 2, and the connecting shaft 501 is rotatably connected with the center of one end of the extrusion sheet 5, and a torsion spring is arranged inside the connecting shaft 501. The connecting shaft 501 drives the end of the extrusion sheet 5 close to the sliding ring 3 to tilt toward the outer wall of the sleeve 1 through the torsion spring, and releases the push on the sliding ring 3. At this time, it can be driven to move in the opposite direction under the action of the extrusion spring 4, so that the sliding ring 3 moves to squeeze the extrusion sheet 5, and then the extrusion sheet 5 is driven to tilt toward one side of the connecting pipe 2, so that it is pressed and fitted with the pipe on the outer wall of the connecting pipe 2. At the same time, because the extrusion sheet 5 is inclined, when the pipe is pulled, the extrusion sheet 5 can be driven to further squeeze the connecting pipe 2, so that the extrusion of the pipe is tighter.

[0028] like Figure 1 , Figure 2 As shown, a plurality of inclined sheets 201 are arranged around the outer wall of one end of the connecting tube 2 away from the sleeve 1, and the inclined sheets 201 are inclined toward one side of the sleeve 1, and a conical surface 202 is arranged inclined toward the center of one end of the connecting tube 2 away from the sleeve 1, so that when pushed, the connecting tube 2 can be pushed toward the inside of the sleeve 1, thereby causing the connecting tube 2 to drive the sliding ring 3 on the top to move, and thereby causing the sliding ring 3 to drive the extrusion surface 301 of the side wall to release the extrusion sheet 5.

[0029] Working principle: When in use, the corresponding joint is connected to the connecting thread 101 on the outer wall of the sleeve 1 by rotation, so that the pipeline used for transportation and the outer wall of the connecting pipe 2 can be sleeved together, and then the pipeline is pushed toward the inner end of the sleeve 1, so that the pipeline moves toward the inside of the sleeve 1, and when pushing, the connecting pipe 2 can also be pushed toward the inside of the sleeve 1, so that the connecting pipe 2 drives the sliding ring 3 on the top to move, and then the sliding ring 3 drives the extrusion surface 301 of the side wall to release the extrusion of the extrusion sheet 5, so that the extrusion sheet 5 moves toward the outer wall of the sleeve 1, and at the same time, the sliding ring 3 can move to compress the extrusion spring 4, so that the pipeline can be inserted into the interior of the sleeve 1, so that the pipeline is located between the extrusion sheet 5 and the connecting pipe 2. When the sleeve connection is completed, The pushing on the connecting pipe 2 can be released, and the pushing on the sliding ring 3 can be released. At this time, it can be driven to move in the opposite direction under the action of the extrusion spring 4, so that the sliding ring 3 moves to squeeze the extrusion sheet 5, and then the extrusion sheet 5 is driven to tilt to one side of the connecting pipe 2, so that it is squeezed and fitted with the pipe on the outer wall of the connecting pipe 2. At the same time, since the extrusion sheet 5 is inclined, when the pipe is pulled, the extrusion sheet 5 can be driven to further squeeze the connecting pipe 2, so that the squeezing of the pipe is tighter, which can effectively keep the pipe fixed and avoid falling off when moving in the opposite direction. At the same time, since the inclined sheet 201 is inclined to one side of the sleeve 1, it can also facilitate the movement of the pipe sleeve, and then block it in its reverse movement to avoid falling off, thereby effectively maintaining the connection of the pipe.

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An industrial gas filling joint, comprising a sleeve (1), a connecting pipe (2) and a sliding ring (3), characterized in that: A connecting tube (2) is arranged inside one end of the sleeve (1); a sliding ring (3) is arranged on the outer wall of the end of the connecting tube (2) close to the inside of the sleeve (1); an extrusion spring (4) is arranged on the end of the sliding ring (3) away from the connecting tube (2); and a plurality of extrusion sheets (5) are arranged around the inner wall of the sliding ring (3) close to the connecting tube (2); The outer wall of the sleeve (1) used for connection is provided with a connecting thread (101) at one end away from the connecting pipe (2), and the inner wall of the sleeve (1) is provided with a surrounding groove (104), and the surrounding groove (104) and the outer wall of the sliding ring (3) slide relative to each other; The outer wall of the connecting pipe (2) and the sliding ring (3) used for connection are fixedly connected to each other, and a pressing surface (301) is provided on a side of the bottom of the sliding ring (3) close to the connecting pipe (2) and inclined outwardly; The top of the extrusion sheet (5) used for extrusion and fixing fits with the extrusion surface (301) of the bottom side wall of the sliding ring (3), and the end of the extrusion sheet (5) away from the sliding ring (3) rotates with the inside of the surrounding groove (104) via the connecting shaft (501).

2. An industrial gas filling connector according to claim 1, characterized in that: An end of the outer wall of the sleeve (1) close to the connecting pipe (2) is fixedly connected to a fixing knob (102), and an end of the outer wall of the sleeve (1) away from the connecting pipe (2) is surrounded by a clamping groove (103).

3. An industrial gas filling connector according to claim 1, characterized in that: One end of the extrusion spring (4) is fitted and connected to one end of the sliding ring (3), and the end of the extrusion spring (4) away from the sliding ring (3) is fixedly connected to the side wall of the inner part of the surrounding groove (104) away from the end of the connecting pipe (2).

4. An industrial gas filling joint according to claim 1, characterized in that: The extrusion sheet (5) is arc-shaped and corresponds to the outer wall of the connecting tube (2), and the connecting shaft (501) is rotatably connected to the center of one end of the extrusion sheet (5). A torsion spring is provided inside the connecting shaft (501), and the connecting shaft (501) drives the end of the extrusion sheet (5) close to the sliding ring (3) to tilt toward the outer wall of the sleeve (1) through the torsion spring.

5. The industrial gas filling connector according to claim 1, characterized in that: A plurality of inclined plates (201) are arranged around the outer wall of one end of the connecting tube (2) away from the sleeve (1), and the inclined plates (201) are inclined toward one side of the sleeve (1). A conical surface (202) is arranged at the end of the connecting tube (2) away from the sleeve (1) and inclined toward the center.

6. An industrial gas filling connector according to claim 1, characterized in that: The interior of the connecting pipe (2) is in communication with the interior of the sleeve (1), and a sliding surface (105) is provided on the inner wall of one end of the sleeve (1) close to the connecting pipe (2) and inclined outwards.

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