CN219120022U

CN219120022U - Leak protection pipe end connector

Info

Publication number: CN219120022U
Application number: CN202223450620.4U
Authority: CN
Inventors: 刘思仅
Original assignee: Jingzhou Longgang Petrochemical Equipment Technology Co ltd
Current assignee: Jingzhou Longgang Petrochemical Equipment Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-02
Anticipated expiration: 2032-12-21

Abstract

The utility model provides a leakage-proof pipe end connector; comprises an inner cylinder, an outer cylinder, a spring, a fastening nut and a positioner; the inner cylinder, the outer cylinder and the positioner are made of stainless steel; the outer cylinder is fixed on the outer side of the inner cylinder, the fastening nut is rotatably connected to the left end of the inner cylinder, the right end of the fastening nut is radially provided with a supporting shaft, and the supporting shaft is hinged with a handle; the inner cylinder is fixed at the end part of the first pipeline, the end part of the second pipeline is provided with a thread head, and the fastening nut is in threaded connection with the thread head; the outer cylinder is provided with an annular groove, the positioner is connected in the groove in a sliding way, the spring is arranged between the groove and the positioner, and the top end of the handle can be vertically rotated and then fixed in the positioner; the utility model solves the problem that the nut of the nut ferrule type connector can be loosened to generate leakage due to possible resonance vibration of a pipeline system.

Description

Leak protection pipe end connector

Technical Field

The utility model relates to the technical field of pipeline conveying, in particular to a leakage-proof pipe end connector.

Background

The pipeline is a device which is formed by connecting pipes, pipe connectors, valves and the like and is used for conveying gas, liquid or fluid with solid particles; after being pressurized by a blower, a compressor, a pump, a boiler and the like, the fluid flows from a high-pressure position to a low-pressure position of the pipeline, and can be conveyed by utilizing the pressure or gravity of the fluid.

The nut clamping sleeve type connector in the pipe connecting piece is convenient and simple to install, does not need special tools, and is wide in application; however, the nuts of the nut ferrule type connector can be loosened to generate leakage due to possible resonance vibration of a pipeline system, and the nut ferrule type connector needs to be screwed again; therefore, the nut clamping sleeve type joint can only be installed clearly, the arrangement position of the pipeline joint is required clearly, and the pipeline is limited.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a leakage-proof pipe end connector, which solves the problem that a nut of a nut ferrule type connector can loosen to generate leakage due to possible resonance vibration of a pipeline system.

According to an embodiment of the utility model, a leakage-proof pipe end connector comprises an inner cylinder, an outer cylinder, a spring, a fastening nut and a positioner; the outer cylinder is fixed on the outer side of the inner cylinder, the fastening nut is rotatably connected to the left end of the inner cylinder, and the fastening nut is radially hinged with a handle; the inner cylinder is fixed at the end part of the first pipeline, the end part of the second pipeline is provided with a thread head, and the fastening nut is in threaded connection with the thread head; the outer cylinder is provided with an annular groove, the positioner is connected in the groove in a sliding way, the spring is arranged between the groove and the positioner, and the top end of the handle can be vertically rotated and then fixed in the positioner.

The technical principle of the utility model is as follows: the handle is hinged to the fastening nut, the handle is in a state parallel to the radial end face of the fastening nut, a worker holds the handle, and the fastening nut is screwed up by means of the handle; after tightening the fastening nut, the worker vertically rotates the handle along the axis of the pipeline; the worker pushes the retainer into the recess and then rotates the retainer so that the retainer aligns with the handle and then secures the handle tip within the retainer.

Compared with the prior art, the utility model has the following beneficial effects: the fastening nut is screwed on the thread head by means of the handle, so that a tool is not needed, and the pipeline is quickly connected; after the fastening nut is screwed on the threaded head, the top end of the handle is fixed in the positioner, when the pipeline system generates resonance vibration, the handle is blocked by the positioner, the fastening nut cannot loosen, and the fastening nut is tightly connected with the threaded head; the problem that the nut of the nut ferrule type connector can be loosened due to possible resonance vibration of a pipeline system to generate leakage is solved.

Preferably, the device further comprises a fixing nut and a limiting nut; the outer circumference of the left part of the inner cylinder is provided with a spline, the inner hole of the outer cylinder is provided with a key slot, and the outer cylinder is connected with the inner cylinder through the key; the fixed nut is in threaded connection with the right part of the inner cylinder, and the fixed nut props against the right end of the outer cylinder; the limiting nut is in threaded connection with the right part of the outer cylinder, and the limiting nut blocks the positioner in the groove; the left end of the inner barrel is provided with a boss which is in a right trapezoid shape, and the boss clamps the fastening nut.

By adopting the technical scheme, the method has the advantages that: during installation, the outer cylinder slides onto the inner cylinder along the spline on the inner cylinder, after the right part of the inner cylinder is screwed up, the fixing nut props against the right end of the outer cylinder, and the fixing nut fixes the outer cylinder on the inner cylinder; the boss is right trapezoid, and the boss is closely laminated with fastening nut.

Preferably, the device further comprises a cuff; a clamping table is arranged on the circumference of the right end of the inner cylinder and is arranged in the end hole of the first pipeline; the cuff is arranged outside the end part of the pipeline and is used for tightening the first pipeline on the clamping table.

By adopting the technical scheme, the method has the advantages that: the clamping table forms a connecting seal at the end part of the first pipeline, the hoop hoops the first pipeline on the clamping table, and the inner barrel is fixed at the end part of the first pipeline.

Preferably, the outer side of the left end of the thread head is provided with an external thread; the connection mode of the left end of the threaded head and the second pipeline is the same as that of the inner cylinder and the first pipeline, and the hoop hoops the second pipeline on the clamping table.

By adopting the technical scheme, the method has the advantages that: an external thread arranged on the outer side of the left end of the thread head provides a thread connection position of the fastening nut; the ferrule tightens the second conduit on the clamping table, the ferrule securing the threaded head to the second conduit.

Preferably, the outer cylinder is uniformly provided with sliding edges in the grooves, the locator is uniformly provided with guide grooves, and the sliding edges are arranged in the guide grooves; the left end of the locator is provided with a semi-annular fixing groove, and the top end of the handle is arranged in the fixing groove; the outer circle of the left end of the positioner is recessed inwards in the circumferential direction, and the nut is limited to block the recess.

By adopting the technical scheme, the method has the advantages that: after the fastening nut is screwed, a worker holds the left end of the positioner and pushes the positioner into the groove, so that the positioner exits from the sliding edge, and the spring is pressed; then rotating the positioner to align the fixing groove with the top end of the handle; finally, carrying out rotary fine adjustment on the positioner again, enabling the positioner to enter the sliding edge again, and restoring the spring to be original; the sliding edges are arranged in the guide grooves, and the locator can bear torque transmitted by the handle on the outer cylinder.

Preferably, the top end of the handle is vertically bent to form a semi-ring shape; the middle part of the vertical bending part is provided with a positioning groove, the circumference of a positioner in the middle part of the positioning groove is provided with a V-shaped groove, and the positioning groove can be opposite to the V-shaped groove.

By adopting the technical scheme, the method has the advantages that: the top end of the handle is semi-annular, so that the handle is beneficial to being attached to the outer cylinder, and the occupied space is reduced; the staff aligns the fixed slot with the top end of the handle by using the positioning slot and the V-shaped slot.

Drawings

FIG. 1 is a schematic illustration of a leak-proof pipe end connector according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along the A-A plane of FIG. 1;

FIG. 3 is a cross-sectional view taken along the B-B plane in FIG. 1.

In the above figures: reference numerals in the drawings of the specification include: the device comprises an inner cylinder 1, a spline 101, a clamping table 102, a boss 103, a thread head 2, an outer cylinder 3, a groove 301, a sliding edge 302, a fixing nut 4, a spring 5, a positioner 6, a fixing groove 601, a handle 7, a limiting nut 8, a fastening nut 9, a first pipeline 10 and a second pipeline 12.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 to 3, a leakage-proof pipe end connector comprises an inner cylinder 1, an outer cylinder 3, a spring 5, a fastening nut 9 and a positioner 6; the inner cylinder 1, the outer cylinder 3 and the positioner 6 are made of stainless steel; the outer cylinder 3 is fixed on the outer side of the inner cylinder 1, the fastening nut 9 is rotatably connected to the left end of the inner cylinder 1, the right end of the fastening nut 9 is radially provided with a supporting shaft, and the supporting shaft is hinged with a handle 7; the inner cylinder 1 is fixed at the end part of a first pipeline 10, a threaded head 2 is arranged at the end part of a second pipeline 12, and a fastening nut 9 is in threaded connection with the threaded head 2; the outer cylinder 3 is provided with an annular groove 301, the positioner 6 is slidably connected in the groove 301, the spring 5 is arranged between the groove 301 and the positioner 6, and the top end of the handle 7 can be vertically rotated and then fixed in the positioner 6.

The technical principle of the utility model is as follows: the handle 7 is hinged on the fastening nut 9, the handle 7 is in a state parallel to the radial end face of the fastening nut 9, a worker holds the handle 7, and the fastening nut 9 is screwed up by the aid of the handle 7; after tightening the fastening nut 9, the worker rotates the handle 7 vertically along the pipe axis; the worker pushes the retainer 6 into the groove 301 and then rotates the retainer 6 so that the retainer 6 is aligned with the handle 7, and then fixes the tip of the handle 7 in the retainer 6.

Compared with the prior art, the utility model has the following beneficial effects: the fastening nut 9 is screwed on the thread head 2 by means of the handle 7, so that the pipeline is quickly connected without tools; the handle 7 is hinged to the right end of the fastening nut 9, a tool clamping space is reserved at the left end of the fastening nut 9, and the fastening nut 9 can be screwed by using a tool; after the fastening nut 9 is screwed on the threaded head 2, the top end of the handle 7 is fixed in the positioner 6, when the pipeline system generates resonance vibration, the handle 7 is blocked by the positioner 6, the fastening nut 9 cannot loosen, and the fastening nut 9 is tightly connected with the threaded head 2; the problem that the nut of the nut ferrule type connector can be loosened due to possible resonance vibration of a pipeline system to generate leakage is solved.

The device also comprises a fixed nut 4 and a limiting nut 8; the outer circumference of the left part of the inner cylinder 1 is provided with a spline 101, the inner hole of the outer cylinder 3 is provided with a key slot, and the outer cylinder 3 is connected with the inner cylinder 1 in a key way; the fixed nut 4 is connected to the right part of the inner cylinder 1 through threads, and the fixed nut 4 props against the right end of the outer cylinder 3; the limiting nut 8 is connected to the right part of the outer cylinder 3 in a threaded manner, and the limiting nut 8 blocks the positioner 6 in the groove 301; the left end of the inner cylinder 1 is provided with a boss 103, the boss 103 is in a right trapezoid shape, and the boss 103 clamps the fastening nut 9.

By adopting the technical scheme, the method has the advantages that: during installation, the outer cylinder 3 slides onto the inner cylinder 1 along the spline 101 on the inner cylinder 1, after the right part of the inner cylinder 1 is screwed, the fixing nut 4 butts against the right end of the outer cylinder 3, and the fixing nut 4 fixes the outer cylinder 3 on the inner cylinder 1; the boss 103 is in a right trapezoid shape, and the boss 103 is tightly attached to the fastening nut 9.

As shown in fig. 1: also comprises a hoop; two clamping tables 102 are arranged on the circumference of the right end of the inner cylinder 1, and the clamping tables 102 are in a right-angle trapezoid shape; the clamping table 102 is arranged in an end hole of the first pipeline 10; the cuff is arranged outside the end of the pipeline and is used for clamping the first pipeline 10 on the clamping table 102; the outer side of the left end of the thread head 2 is provided with an external thread; the connection mode of the left end of the screw thread head 2 and the second pipeline 12 is the same as the connection mode of the inner cylinder 1 and the first pipeline 10, and the hoop hoops the second pipeline 12 on the clamping table 102.

By adopting the technical scheme, the method has the advantages that: the clamping table 102 forms a connecting seal at the end part of the first pipeline 10, the hoop hoops the first pipeline 10 on the clamping table 102, and the inner cylinder 1 is fixed at the end part of the first pipeline 10; the external thread arranged on the outer side of the left end of the thread head 2 provides a threaded connection position of the fastening nut 9; the ferrule tightens the second conduit 12 on the clamping block 102, the ferrule securing the threaded head 2 to the second conduit 12.

As shown in fig. 2 and 3: the outer cylinder 3 is uniformly provided with sliding edges 302 in the grooves 301, guide grooves are uniformly formed in the positioners 6, and the sliding edges 302 are arranged in the guide grooves; the left end of the locator 6 is provided with a semi-annular fixing groove 601, and the top end of the handle 7 is arranged in the fixing groove 601; the outer circumference of the left end of the locator 6 is recessed inwards, and the limiting nut blocks the recess.

By adopting the technical scheme, the method has the advantages that: after the fastening nut 9 is screwed down, a worker holds the left end of the positioner 6 and pushes the positioner 6 into the groove 301, so that the positioner 6 exits the sliding edge 302, and the spring 5 is compressed; then the positioner 6 is rotated to align the fixing groove 601 with the top end of the handle 7; finally, the positioner 6 is subjected to rotary fine adjustment again, the positioner 6 enters the sliding edge 302 again, and the spring 5 is restored to the original state; the sliding ribs 302 are arranged in the guide grooves, and the retainer 6 can bear the torque transmitted by the handle 7 on the outer cylinder 3.

As shown in fig. 2: the top end of the handle 7 is vertically bent and is semi-annular; the handle 7 is made of stainless steel; the middle part of the vertical bending part is provided with a positioning groove, the circumference of the positioner 6 in the middle part of the fixed groove 601 is provided with a V-shaped groove, and the positioning groove can be opposite to the V-shaped groove.

By adopting the technical scheme, the method has the advantages that: the top end of the handle 7 is semi-annular, so that the handle is beneficial to being attached to the outer cylinder 3, and the occupied space is reduced; the staff aligns the fixing groove 601 with the top end of the handle 7 by using the positioning groove and the V-shaped groove.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. A leak-proof pipe end connector, characterized in that: comprises an inner cylinder, an outer cylinder, a spring, a fastening nut and a positioner; the outer cylinder is fixed on the outer side of the inner cylinder, the fastening nut is rotatably connected to the left end of the inner cylinder, and the fastening nut is radially hinged with a handle; the inner cylinder is fixed at the end part of the first pipeline, the end part of the second pipeline is provided with a thread head, and the fastening nut is in threaded connection with the thread head; the outer cylinder is provided with an annular groove, the positioner is connected in the groove in a sliding way, the spring is arranged between the groove and the positioner, and the top end of the handle can be vertically rotated and then fixed in the positioner.

2. The leak-proof pipe end connector of claim 1, wherein: the device also comprises a fixing nut and a limiting nut; the outer circumference of the left part of the inner cylinder is provided with a spline, the inner hole of the outer cylinder is provided with a key slot, and the outer cylinder is connected with the inner cylinder through the key; the fixed nut is in threaded connection with the right part of the inner cylinder, and the fixed nut props against the right end of the outer cylinder; the limiting nut is in threaded connection with the right part of the outer cylinder, and the limiting nut blocks the positioner in the groove; the left end of the inner barrel is provided with a boss which is in a right trapezoid shape, and the boss clamps the fastening nut.

3. The leak-proof pipe end connector of claim 2, wherein: also comprises a hoop; a clamping table is arranged on the circumference of the right end of the inner cylinder and is arranged in the end hole of the first pipeline; the cuff is arranged outside the end part of the pipeline and is used for tightening the first pipeline on the clamping table.

4. The leak-proof pipe end connector as defined in claim 3, wherein: the outer side of the left end of the thread head is provided with an external thread; the connection mode of the left end of the threaded head and the second pipeline is the same as that of the inner cylinder and the first pipeline, and the hoop hoops the first pipeline on the clamping table.

5. The leak-proof pipe end connector of claim 4, wherein: the outer cylinder is uniformly provided with sliding edges in the grooves, the locator is uniformly provided with guide grooves, and the sliding edges are arranged in the guide grooves; the left end of the locator is provided with a semi-annular fixing groove, and the top end of the handle is arranged in the fixing groove; the outer circle of the left end of the positioner is recessed inwards in the circumferential direction, and the nut is limited to block the recess.

6. The leak-proof pipe end connector of claim 5, wherein: the top end of the handle is vertically bent to form a semi-ring shape; the middle part of the vertical bending part is provided with a positioning groove, the circumference of a positioner in the middle part of the positioning groove is provided with a V-shaped groove, and the positioning groove can be opposite to the V-shaped groove.