CN220470889U - Safety valve pipeline joint - Google Patents

Abstract

The utility model discloses a safety valve pipeline joint, which comprises a connecting pipe body, a positioning cylinder, a positioning piece with a bulge on the outer surface and a driving piece, wherein the positioning piece is arranged on the outer surface of the connecting pipe body; the positioning cylinders are arranged on the outer walls of the two ends of the connecting pipe body, and an annular cavity is formed between the positioning cylinders and the outer walls of the connecting pipe body; the positioning sheet is rotationally connected with the positioning cylinder, and the bottom end of the positioning sheet can extend into the annular cavity; when the positioning sheet is not subjected to external force, the positioning sheet deflects along the direction close to the axial lead of the connecting pipe body; the driving piece is arranged on the outer wall of the connecting pipe body, can be abutted or separated with the locating pieces and is used for dragging a plurality of the locating pieces to deflect along the direction away from the axial lead of the connecting pipe body so as to clamp a pipeline to be connected. The utility model achieves the purpose of more convenient installation through the matched use of the device.

Description

Safety valve pipeline joint

Technical Field

The utility model relates to the field of pipeline connecting fittings, in particular to a safety valve pipeline connector.

Background

The safety valve is a special valve which is in a normally closed state under the action of external force and can prevent the medium pressure in the pipeline or the equipment from exceeding a prescribed value by discharging the medium to the outside of the system when the medium pressure in the equipment or the pipeline rises to exceed the prescribed value.

When in use, the safety valve is matched with an external pipeline to realize the self function. In the prior art, the connection of the safety valve pipeline and the external pipeline is realized by a pipeline joint, and the end part of the common pipeline joint adopts a threaded interface to finish the connection of the pipeline. However, the above connection method has certain drawbacks: if screw thread slip silk exists when adopting threaded connection's condition, and then cause can't play due sealed effect, there is the condition that gas revealed to above-mentioned connected mode needs to rotate repeatedly at the in-process of installation and dismantlement, comparatively wastes time and energy.

Accordingly, there is a need for a relief valve conduit fitting that addresses the above-described issues.

Disclosure of Invention

The utility model aims to provide a safety valve pipeline connector, which is convenient for connecting an external pipeline with a safety valve quickly, so as to achieve the purpose of more convenient installation.

In order to solve the technical problems, the utility model provides a safety valve pipeline joint, which comprises a connecting pipe body, a positioning cylinder, a positioning piece with a bulge on the outer surface and a driving piece;

the positioning cylinders are arranged on the outer walls of the two ends of the connecting pipe body, and an annular cavity is formed between the positioning cylinders and the outer walls of the connecting pipe body;

the positioning sheet is rotationally connected with the positioning cylinder, and the bottom end of the positioning sheet can extend into the annular cavity;

when the positioning sheet is not subjected to external force, the positioning sheet deflects along the direction close to the axial lead of the connecting pipe body;

the driving piece is arranged on the outer wall of the connecting pipe body, can be abutted or separated with the locating pieces and is used for dragging a plurality of the locating pieces to deflect along the direction away from the axial lead of the connecting pipe body so as to clamp a pipeline to be connected.

Further, a plurality of clamping grooves are formed in the positioning barrel, and the positioning pieces are rotatably installed in the clamping grooves.

Further, the locating piece is hinged with the clamping groove through a torsion spring.

Further, the driving member includes a sliding sleeve;

the sliding sleeve is arranged on the outer wall of the connecting pipe body in a sliding manner along the horizontal direction and is in a circular truncated cone structure so as to be abutted with the positioning piece;

when the end part of the sliding sleeve slides to be abutted with the positioning cylinder, the positioning sheet deflects to be in a horizontal state.

Further, when the end portion of the sliding sleeve slides to abut against the positioning cylinder, the other end of the sliding sleeve is exposed out of the annular chamber.

Further, a plurality of balls for reducing friction force are arranged on the sliding sleeve.

Further, the driving piece further comprises a fixed ring and a compression spring;

the fixed ring is fixedly arranged on the outer wall of the connecting pipe body and is connected with the sliding sleeve through the compression spring.

Further, a sealing ring is arranged on the outer wall of the positioning cylinder.

Compared with the prior art, the utility model has at least the following beneficial effects:

through setting up positioning tube, surface have bellied spacer and driving piece, utilize the extrusion power of driving piece for the spacer overturns along the outside, and then carries out the joint with waiting to connect the pipeline, in order to carry out spacingly, so compare in the mode that adopts threaded connection to install in traditional technique, this device reaches the more convenient purpose of installation.

Drawings

FIG. 1 is a schematic view of the structure of a safety valve pipe joint of the present utility model;

FIG. 2 is a schematic view of the structure of the safety valve of the present utility model when the driving member is separated from the positioning plate;

fig. 3 is a schematic structural view of a driving member in the safety valve pipe joint of the present utility model.

Reference numerals: 1. a connecting pipe body; 2. a positioning cylinder; 21. a clamping groove; 22. a seal ring; 3. a positioning sheet; 4. a driving member; 41. a sliding sleeve; 42. a fixing ring; 43. a compression spring; 5. an annular chamber.

Detailed Description

The safety valve pipe joint of the present utility model will be described in more detail below in conjunction with the schematic drawings, wherein preferred embodiments of the present utility model are shown, it being understood that one skilled in the art may modify the utility model described herein while still achieving the beneficial effects of the present utility model. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the utility model.

The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a safety valve pipe joint, which includes a connecting pipe body 1, a positioning cylinder 2, a positioning piece 3 having a protrusion on an outer surface, and a driving member 4.

The positioning cylinder 2 is arranged on the outer walls of the two ends of the connecting pipe body 1, and an annular cavity 5 is formed between the positioning cylinder and the outer walls of the connecting pipe body 1 so as to reserve a gap for deflection of the positioning sheet 3.

The locating piece 3 is rotatably connected with the locating cylinder 2, and the bottom end of the locating piece can extend into the annular cavity 5.

When the positioning sheet 3 is not subjected to external force, the positioning sheet 3 deflects along the direction close to the axial line of the connecting pipe body 1, namely, the positioning sheet 3 is in a contracted state at the moment, so that the connecting pipe body 1 can be in butt joint with a pipeline to be connected or a safety valve.

The driving piece 4 is arranged on the outer wall of the connecting pipe body 1, can be abutted or separated with the locating pieces 3, and is used for dragging a plurality of the locating pieces 3 to deflect along the direction away from the axis of the connecting pipe body 1 so as to clamp a pipeline to be connected.

Namely, when the positioning sheet 3 is not subjected to external force, the safety valve or the pipeline to be connected is sleeved outside the connecting pipe body 1, then the driving piece 4 is controlled to be abutted with the positioning sheet 3, the positioning sheet 3 is driven to overturn, and the bulge on the positioning sheet 3 is clamped with the safety valve or the pipeline to be connected, so that the assembly is completed.

This device is through setting up positioning tube 2, surface have bellied spacer 3 and driving piece 4, utilizes driving piece 4's extrusion power for spacer 3 overturn along the outside, and then carries out the joint with waiting to connect the pipeline, in order to carry out spacingly, so compare in the prior art adopts threaded connection to install the mode, this device reaches the more convenient purpose of installation.

Wherein, a plurality of clamping grooves 21 are arranged on the positioning cylinder 2, and the positioning sheet 3 is rotatably arranged in the clamping grooves 21.

The positioning plate 3 is hinged to the clamping groove 21 through a torsion spring, so that when the positioning plate 3 is not subjected to external force, the end of the positioning plate can deflect into the annular chamber 5 under the action of the torsion spring, and the positioning plate waits for abutting and deflecting with the driving piece 4.

In this embodiment, a specific driving member 4 is provided to enhance the control effect on the positioning plate 3.

The driving member 4 comprises a sliding sleeve 41.

The sliding sleeve 41 is slidably mounted on the outer wall of the connecting pipe body 1 along the horizontal direction, and is configured as a circular truncated cone structure so as to be abutted with the positioning piece 3. Namely, the positioning sheet 3 is deflected by extrusion of the sliding sleeve 41, and the cross-street area of the sliding sleeve 41 is gradually increased from one end close to the positioning sheet 3 so as to drive the positioning sheet 3 to gradually deflect, thereby completing clamping connection between the positioning sheet 3 and the safety valve or the inner wall of a pipeline to be connected.

When the end of the sliding sleeve 41 slides to abut against the positioning cylinder 2, the positioning piece 3 deflects to a horizontal state, that is, the protrusion is clamped on the inner wall of the safety valve or the pipe to be connected.

It should be noted that, when the end portion of the sliding sleeve 41 slides to abut against the positioning cylinder 2, the other end of the sliding sleeve 41 is exposed outside the annular chamber 5, so as to facilitate the sliding sleeve 41 to be pulled out.

Wherein, sliding sleeve 41 inner wall is provided with the stopper, is provided with on the connecting pipe body 1 outer wall with stopper assorted spacing groove for sliding sleeve 41 only follows the horizontal direction and slides, can not appear rotating etc. condition.

In other embodiments, to improve the stability of the sliding sleeve 41 when pushing the spacer 3. The sliding sleeve 41 is provided with a plurality of friction-reducing balls (not shown).

Furthermore, in a further embodiment, a power source is provided for the sliding sleeve 41.

The driving member 4 further comprises a stationary ring 42 and a compression spring 43.

The fixing ring 42 is fixedly installed on the outer wall of the connecting pipe body 1, and is connected with the sliding sleeve 41 through the compression spring 43, that is, the sliding sleeve 41 is pushed to move by the elastic force of the compression spring 43.

When the safety valve or the pipeline to be connected needs to be disassembled, only the sliding sleeve 41 is required to be drawn reversely to contract the compression spring 43 to complete the separation of the positioning sheet 3 and the safety valve or the pipeline to be connected, so that the function of quick disassembly is realized.

In order to promote the sealing effect of the connection between the positioning cylinder 2 and the safety valve or the connecting pipeline. The outer wall of the positioning cylinder 2 is provided with a sealing ring 22.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. The safety valve pipeline connector is characterized by comprising a connecting pipe body, a positioning cylinder, a positioning piece with a bulge on the outer surface and a driving piece;

the positioning cylinders are arranged on the outer walls of the two ends of the connecting pipe body, and an annular cavity is formed between the positioning cylinders and the outer walls of the connecting pipe body;

the positioning sheet is rotationally connected with the positioning cylinder, and the bottom end of the positioning sheet can extend into the annular cavity;

when the positioning sheet is not subjected to external force, the positioning sheet deflects along the direction close to the axial lead of the connecting pipe body;

the driving piece is arranged on the outer wall of the connecting pipe body, can be abutted or separated with the locating pieces and is used for dragging a plurality of the locating pieces to deflect along the direction away from the axial lead of the connecting pipe body so as to clamp a pipeline to be connected.

2. The safety valve conduit coupling of claim 1, wherein said positioning barrel is provided with a plurality of detents, said splines being rotatably mounted within said detents.

3. The safety valve conduit joint of claim 2, wherein the locating tab is hinged to the catch via a torsion spring.

4. The safety valve conduit joint of claim 1 wherein the driver comprises a sliding sleeve;

the sliding sleeve is arranged on the outer wall of the connecting pipe body in a sliding manner along the horizontal direction and is in a circular truncated cone structure so as to be abutted with the positioning piece;

when the end part of the sliding sleeve slides to be abutted with the positioning cylinder, the positioning sheet deflects to be in a horizontal state.

5. The safety valve conduit joint of claim 4, wherein the other end of the sliding sleeve is exposed outside the annular chamber when the end of the sliding sleeve is slid into abutment with the positioning cylinder.

6. The relief valve conduit joint of claim 4, wherein the sliding sleeve is provided with a plurality of friction reducing balls.

7. The relief valve conduit joint of claim 4, wherein the driver further comprises a retaining ring and a compression spring;

the fixed ring is fixedly arranged on the outer wall of the connecting pipe body and is connected with the sliding sleeve through the compression spring.

8. The safety valve conduit joint of claim 1, wherein the outer wall of the positioning cylinder is provided with a sealing ring.