CN220930507U - Pipeline connection structure and pipeline system - Google Patents

Abstract

The utility model belongs to the technical field of pipeline connecting accessories, and particularly relates to a pipeline connecting structure and a pipeline system. The clamping ring is provided with a limit groove which is more than limit protrusions, a certain angle can be selected for installation before the upper cover body is pressed and assembled, the upper cover body and the lower shell are relatively static due to the matching of the concave-convex structure after the installation is completed, the clamp spring slot is fixed towards one side which can be conveniently operated, and the insertion path of the clamp spring is prevented from being blocked.

Description

Pipeline connection structure and pipeline system

Technical Field

The utility model belongs to the technical field of pipeline connecting fittings, and particularly relates to a pipeline connecting structure and a pipeline system.

Background

The quick connector is a connector which can realize the connection or disconnection of a pipeline without tools. Quick connectors can be divided into: quick connectors for air, oxygen fuel gas, gas-liquid common, oil pressure, inert gas, cooling water temperature, and semiconductor.

The quick-dismantling joint disclosed in the patent CN219413918U comprises a connecting pipe and an unlocking piece, wherein the connecting pipe is provided with a first connecting part, and the connecting pipe also comprises an inner cavity and a abdication part communicated with the inner cavity; the unlocking piece is provided with a second connecting part, an elastic arm and a clamping part, the second connecting part and the clamping part are respectively arranged at two ends of the elastic arm, the second connecting part is detachably and fixedly connected with the first connecting part, and the clamping part penetrates through the abdication part to extend into the inner cavity; still include water pipe head, water pipe head is equipped with spacing portion, when joint portion activity to the first position, joint portion with spacing portion lets a cooperation mutually, when joint portion activity to the second position, joint portion with spacing portion is spacing cooperation mutually, second connecting portion, elastic arm and joint portion integrated into one piece setting of this scheme unblock piece, simple structure, simple to operate through drive unblock piece in order to realize quick assembly disassembly, user operation is convenient.

In the above scheme, the unlocking piece for controlling connection is embedded in the U-shaped surrounding wall, the unlocking piece is limited at the position, and the connection between the end part and the pipeline is in a threaded mode, so that the unlocking piece cannot be subjected to angle adjustment no matter the connecting pipe or the unlocking piece, and particularly when the pipeline is installed in a corner or a blind groove, the unlocking piece is likely to be blocked by the wall surface to obstruct the disassembly and assembly of the pipeline.

Disclosure of utility model

The utility model aims to solve the problems and provides a pipeline connecting structure and a pipeline system which can solve the technical problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

Pipeline connection structure, including lower casing and upper cover body, the upper cover body cup joints down on the cambered surface of casing tubular tip down, the axial is inserted between casing and the upper cover body down and is equipped with tubular opponent, the joint has the jump ring on the upper cover body, the jump ring passes the upper cover body and pegs to be located on the annular boss that sets up in the opponent, be provided with spacing arch down on the casing tubular cambered surface, spacing protruding joint is in the spacing groove of seting up on the upper cover body.

In the pipeline connecting structure, one axial end of the upper cover body is provided with an annular abutting surface extending towards the axial lead, the inner ring of the annular abutting surface is provided with a clamping ring, and the clamping ring is clamped in a clamping groove formed in the cambered surface of the lower shell.

In the pipeline connecting structure, a plurality of limiting grooves are uniformly formed in the clamping ring, a plurality of limiting protrusions are uniformly arranged in the clamping grooves, and the number of the limiting grooves is larger than that of the limiting protrusions and is in a multiple number relationship.

In the pipeline connecting structure, one end of the clamping ring, which is far away from the annular abutting surface, is gradually reduced in diameter to enable the clamping ring to be integrally in a round table shape, and the clamping ring is further provided with a telescopic groove.

In the pipeline connecting structure, the side cambered surface, the annular abutting surface and the clamping ring of the upper cover body form an annular slot, and an axial end annular surface of the hand piece is inserted into the slot.

In the pipeline connecting structure, an annular limiting boss is arranged on the tubular outer cambered surface of the lower shell, and the limiting boss axially abuts against the annular abutting surface.

In the pipeline connecting structure, two symmetrical snap spring sliding grooves are circumferentially formed in the outer side face of the upper cover body, snap spring through grooves are further formed in the groove bottoms of the snap spring sliding grooves, and the snap spring through grooves are correspondingly formed in the inner side of the annular boss.

In the pipeline connection structure, a limiting block is arranged outside the clamp spring sliding groove, a limiting bending part is arranged at the end part of the clamp spring, and the limiting bending part abuts against the limiting block.

In the pipeline connecting structure, an annular sealing groove is circumferentially formed in the outer cambered surface of the lower shell, a sealing ring is arranged in the sealing groove, and the sealing ring abuts against the inner side wall of the hand piece.

The utility model also provides a pipeline system, which comprises the pipeline connecting structure.

The utility model has the advantages that:

The upper cover body and the lower shell are connected through the annular clamping ring, the upper cover body bolts the opponent into the upper cover body by utilizing the clamp spring, and the upper cover body, the lower shell and the opponent are limited in the axial direction, so that the sealing performance of the pipeline connecting part can be ensured. The clamping ring is provided with a limit groove which is more than limit protrusions, a certain angle can be selected for installation before the upper cover body is pressed and assembled, the upper cover body and the lower shell are relatively static due to the matching of the concave-convex structure after the installation is completed, the clamp spring slot is fixed towards one side which can be conveniently operated, and the insertion path of the clamp spring is prevented from being blocked.

Meanwhile, the upper cover body and the lower shell body which are installed and fixed are limited in the axial direction and the circumferential direction, so that the overall strength of the pipeline after connection is further enhanced, and the influence of vibration on the pipeline tightness is reduced.

Drawings

FIG. 1 is a schematic view of a pipeline connection structure according to the present utility model.

Fig. 2 is a schematic view of the structure of the upper cover of the present utility model.

Fig. 3 is a schematic view of the lower housing structure of the present utility model.

Fig. 4 is a schematic diagram of the hand piece structure according to the present utility model.

In the illustration, a lower shell 1, a limiting boss 11, a clamping groove 12, a limiting boss 13, a sealing groove 14, an upper cover body 2, a limiting groove 21, an annular abutting surface 22, a clamping ring 23, a telescopic groove 24, a clamping spring sliding groove 25, a clamping spring through groove 26, a limiting block 27, an opponent piece 3, an annular boss 31, a clamping spring 4, a limiting bending 41 and a sealing ring 5.

Detailed Description

The following are specific embodiments of the utility model and the technical solutions of the utility model will be further described with reference to the accompanying drawings, but the utility model is not limited to these embodiments.

Example 1

As shown in fig. 1-4, the pipeline connection structure comprises a lower shell 1 and an upper cover body 2, wherein the upper cover body 2 is sleeved on the arc surface of the tubular end part of the lower shell 1, a tubular opponent piece 3 is axially inserted between the lower shell 1 and the upper cover body 2, a clamp spring 4 is clamped on the upper cover body 2, the clamp spring 4 penetrates through the upper cover body 2 and is bolted on an annular boss 31 arranged in the opponent piece 3, and the pipeline connection structure is characterized in that a limit bulge 11 is arranged on the tubular arc surface of the lower shell 1, and the limit bulge 11 is clamped in a limit groove 21 formed in the upper cover body 2.

Namely, the lower shell 1 and the upper cover body 2 are sleeved with each other, the opponent piece 3 is inserted between the lower shell 1 and the upper cover body 2, the opponent piece 3 is fixed in the upper cover body 3 by the clamp spring 4, the three parts are limited to move in the axial direction so as to ensure the connecting effect of each section of pipeline, concave-convex structures are also arranged at the sliding contact positions of the lower shell 1 and the upper cover body 2, the proper angle is selected before the lower shell 1 and the upper cover body 2 are pressed and assembled, the upper cover body 2 is limited on a certain angle, the control end of the tension spring 4 is also kept in the direction at the moment, and the upper cover body 2 can conveniently and secondarily disassemble the pipeline by using the control end of the tension spring 4 to face the direction more beneficial to operation according to the practical condition of pipeline arrangement.

In this embodiment, an annular abutment surface 22 extending toward the axis is provided at one axial end of the upper cover 2, and a clamping ring 23 is provided on an inner ring of the annular abutment surface 22, and the clamping ring 23 is clamped in a clamping groove 12 formed on the cambered surface of the lower housing 1.

The axial length of the clamping groove 12 is matched with the clamping ring 23, so that the stability of the pipeline after connection can be ensured without axial movement.

Preferably, the plurality of limiting grooves 21 are uniformly formed on the clamping ring 23, the plurality of limiting protrusions 11 are uniformly arranged in the clamping groove 12, and the number of the limiting grooves 21 is greater than that of the limiting protrusions 11 and is in a multiple relationship.

The clamping ring 23 is provided with two times, three times or four times of limiting grooves 21 for limiting protrusions 11, so that after the upper cover body 2 rotates for a certain angle, all limiting protrusions 11 in the clamping groove 12 can be matched with corresponding limiting grooves 21 to fix the upper cover body 2 at the angle position.

For example, four equally divided limit protrusions 11 are provided on the arc surface of the clamping groove 12, and twenty four equally divided limit grooves 21 are provided on the clamping ring 23, so that the clamping ring 23 can perform an integral multiple adjustment angle of 15 ° as required before the lower housing 1 and the upper cover 2 are in press connection.

Preferably, the end of the clamping ring 23 far away from the annular abutting surface 22 is gradually reduced in diameter so that the whole clamping ring 23 is in a round table shape, and the clamping ring 23 is further provided with a telescopic groove 24. The inclined configuration of the snap ring 23 allows a better guiding action when the lower housing 1 and the upper cover 2 are crimped, avoiding the upper cover 2 from being off-axis.

The expansion groove 24 arranged at the port of the clamping ring 23 can enlarge the deformation degree of the small round port of the clamping ring 23 when being extruded and spread, and the ductility of the material is utilized to pass through the thicker column part of the lower shell 1.

In order to cooperate with the clamping ring 23, the telescopic groove 24 is processed into a column body in a round table shape, and after the clamping ring 23 is clamped into the telescopic groove 24, the upper port of the clamping ring 23 cannot be removed from the installed path any more due to the smaller port, so that the connection strength of the lower shell 1 and the upper cover 2 is ensured.

Preferably, the side arc surface, the annular abutting surface 22 and the clamping ring 23 of the upper cover body 2 form an annular slot in the inner ring of the upper cover body 2, the inner wall of the hand piece 3 is in butt joint with the pipe orifice of the lower shell 1 in the circumferential direction, the lower end surface of the hand piece 3 falls into the formed annular slot in the axial direction, namely, the hand piece 3 is axially received by the upper cover body 2, one side of the hand piece 3 is limited, and the other side is fastened by the clamp spring 4 so as to fix the hand piece 3.

Preferably, an annular limiting boss 13 is arranged on the tubular outer cambered surface of the lower shell 1, and the limiting boss 13 axially abuts against the annular abutting surface 22.

The movement of the upper cover body 2 is limited only by the clamping groove 12, and the pressure is too concentrated for the ductile clamping ring 23, so that the whole upper cover body 2 is likely to shake, the annular side wall of the clamping groove 12 is radially outwards extended to form a limiting boss 13, and the limiting boss 13 is used for mainly supporting the upper cover body 2, so that the upper cover body 2 is more stable, and the connection strength with the opponent piece 3 is improved.

In this embodiment, two symmetrical snap spring sliding grooves 25 are circumferentially formed on the outer side surface of the upper cover body 2, a snap spring through groove 26 is formed at the bottom of the snap spring sliding groove 25, and the snap spring through groove 26 is correspondingly arranged with an inner annular boss 31.

The clamping rods at the two ends of the U-shaped clamping spring 4 are respectively inserted into clamping spring sliding grooves 25 at the two sides, and after the clamping spring 4 is pushed, part of the clamping rod enters the inner ring of the upper cover body 2 through the clamping spring through groove 26 and contacts with the table top of the annular boss 31, so that the opponent piece 3 is fastened in the upper cover body 2.

Preferably, a limiting block 27 is arranged outside the clamping spring sliding groove 25, a limiting bend 41 is arranged at the end part of the clamping spring 4, and the limiting bend 41 abuts against the limiting block 27.

When the unlocking state of the clamp spring 4 is pulled out, the limiting bending 41 of the clamping rod is hooked on the limiting block 27, and the clamp spring 4 is prevented from further exiting the clamp spring sliding groove 25, so that the clamp spring 4 in the locking state or the unlocking state stays on the upper cover body 2, and the clamp spring 4 serving as a small accessory is not easy to lose in transportation or storage.

In this embodiment, an annular sealing groove 14 is circumferentially formed on the outer arc surface of the lower housing 1, a sealing ring 5 is arranged in the sealing groove 14, the sealing ring 5 abuts against the inner side wall of the counter part 3, and liquid or gas is prevented from leaking out of a pipe body connected with the lower housing 1 and the counter part 3.

Example 2

The pipe connection structure of embodiment 1 is applied to a pipe system, and can be used for extending connection of straight pipes or connection of pipe corners.

The lower shell 1 serving as a transition connecting piece is firstly connected with the upper cover body 2 in a pressing mode at the end portion, the upper cover body 2 can be installed according to surrounding conditions, the angle of the clamp spring sliding groove 25 facing the angle can be selected, and the clamp spring sliding groove 25 is prevented from being blocked by a wall body or other pipelines. The sealing ring 5 is sleeved in the sealing groove 14, and then the pipe to be connected with the hand piece 3 is inserted into the upper cover body 2, and the clamp spring 4 carried on the upper cover body 2 is fixed.

The quick connector capable of rotating circumferentially can effectively solve the problem that the clamp spring 4 inserting port turns to the side with a shielding object after the traditional connector is rotationally connected with the pipeline threads, and meanwhile, convenience is brought to maintenance and replacement of the pipeline afterwards.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. Pipeline connection structure, including lower casing (1) and upper cover body (2), upper cover body (2) cup joint on the cambered surface of lower casing (1) tubular tip, it is equipped with tubular opponent (3) to insert axially between lower casing (1) and upper cover body (2), the joint has jump ring (4) on upper cover body (2), jump ring (4) pass upper cover body (2) are pinned and are located on annular boss (31) that set up in opponent (3), a serial communication port, be provided with spacing arch (11) on the tubular cambered surface of lower casing (1), spacing arch (11) joint is in spacing groove (21) of seting up on upper cover body (2).

2. The pipeline connecting structure according to claim 1, wherein an annular abutting surface (22) extending towards the axial lead is arranged at one axial end of the upper cover body (2), a clamping ring (23) is arranged on the inner ring of the annular abutting surface (22), and the clamping ring (23) is clamped in a clamping groove (12) formed in the cambered surface of the lower shell (1).

3. The pipeline connecting structure according to claim 2, wherein a plurality of the limit grooves (21) are uniformly formed in the clamping ring (23), a plurality of the limit protrusions (11) are uniformly formed in the clamping grooves (12), and the number of the limit grooves (21) is greater than the number of the limit protrusions (11) and is in a multiple relationship.

4. The pipeline connecting structure according to claim 2, wherein the end of the clamping ring (23) far away from the annular abutting surface (22) is gradually reduced in diameter so that the clamping ring (23) is integrally in a shape of a circular table, and the clamping ring (23) is further provided with a telescopic groove (24).

5. The pipeline connecting structure according to claim 2, wherein the side arc surface, the annular abutting surface (22) and the clamping ring (23) of the upper cover body (2) form an annular slot, and an axial end annular surface of the pair of workpieces (3) is inserted into the slot.

6. The pipeline connecting structure according to claim 2, characterized in that an annular limiting boss (13) is arranged on the tubular extrados of the lower shell (1), and the limiting boss (13) axially abuts against the annular abutting surface (22).

7. The pipeline connecting structure according to claim 1, wherein two symmetrical snap spring sliding grooves (25) are circumferentially formed in the outer side face of the upper cover body (2), snap spring through grooves (26) are further formed in the groove bottoms of the snap spring sliding grooves (25), and the snap spring through grooves (26) are correspondingly arranged with the inner side annular boss (31).

8. The pipeline connecting structure according to claim 6, wherein a limiting block (27) is arranged outside the clamp spring sliding groove (25), a limiting bend (41) is arranged at the end part of the clamp spring (4), and the limiting bend (41) abuts against the limiting block (27).

9. The pipeline connecting structure according to claim 1, wherein an annular sealing groove (14) is circumferentially formed in the outer arc surface of the lower shell (1), a sealing ring (5) is arranged in the sealing groove (14), and the sealing ring (5) abuts against the inner side wall of the counter part (3).

10. A pipe system, characterized in that the pipe system comprises a pipe connection according to any one of claims 1-9.