CN212319051U

CN212319051U - Three-way type pressure gauge movable joint

Info

Publication number: CN212319051U
Application number: CN202020663844.5U
Authority: CN
Inventors: 王欢
Original assignee: Chengdu Jinuo Brothers Precision Machinery Manufacturing Co ltd
Current assignee: Chengdu Jinuo Brothers Precision Machinery Manufacturing Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-01-08
Anticipated expiration: 2030-04-27

Abstract

The utility model belongs to the technical field of movable joints, in particular to a three-way type pressure gauge movable joint, which comprises a pipeline, wherein a baffle ring is fixedly sleeved on the outer surface of the pipeline close to a threaded connection, a thread is arranged on the outer surface of the pipeline, and a nut is sleeved on the outer surface of the thread; and a pressure locking device is arranged in the pipeline and locks the nut by locking the threads. This three way type manometer loose joint, through setting up pressure locking device, utilize the fluid pressure in the pipeline to reach the effect from locking, when high pressure appears, extrude the downthehole response pole of pressure, and then promote first flexible piece and the flexible piece of second behind the response pole extrusion hydraulic oil and stretch out the chucking screw thread, first flexible piece locking screw thread, the flexible piece of second stretches out and prevents screw thread reverse rotation, and then make under the high pressure or the water hammer condition appear, can reach the auto-lock and not appear not hard up problem.

Description

Three-way type pressure gauge movable joint

Technical Field

The utility model relates to an active joint technical field especially relates to a three way type manometer active joint.

Background

The union is a common pipe connector which is convenient to assemble and disassemble and mainly comprises a nut, a cloud head and a butt joint. The socket movable joint has the variety of equal diameter and different diameter.

After the existing movable joint is connected, the liquid pressure in a pipeline of the existing movable joint frequently changes and continuously impacts the position of a threaded joint, particularly when the pressure is suddenly increased or a water hammer phenomenon occurs, the nut is easy to loosen due to the generated vibration, and if the sealing performance and the fastening performance of threaded connection are improved by winding an adhesive tape on the surface of a thread, the nut is easy to clamp or the nut is easy to loose due to too little winding.

SUMMERY OF THE UTILITY MODEL

Based on nut among the current loose joint increases suddenly or when the water hammer phenomenon appears in pressure, produced vibrations very easily make the nut appear not hard up technical problem, the utility model provides a three way type manometer loose joint.

The utility model provides a three-way type pressure gauge movable joint, which comprises a pipeline, wherein a baffle ring is fixedly sleeved on the outer surface of the pipeline close to the threaded connection, a thread is arranged on the outer surface of the pipeline, and a nut is sleeved on the outer surface thread of the thread;

and a pressure locking device is arranged in the pipeline and locks the nut by locking the threads.

Preferably, the pressure locking device comprises a convex ring, the convex ring is fixedly installed on the outer surface of the pipeline, a pressure hole is formed in the convex ring, one end of the pressure hole extends to the inner wall of the pipeline, and toughened transparent glass is fixedly installed on the inner top wall of the pressure hole through an observation port formed in the inner top wall of the pressure hole.

Through above-mentioned technical scheme, the inside condition of pressure hole is observed to accessible toughened transparent glass.

Preferably, the inner top wall of the pressure hole is fixedly connected with a return spring, the free end of the bottom end of the return spring is fixedly connected with an induction rod, and the outer surface of the induction rod is in sliding sleeve joint with the inner wall of the pressure hole.

Through above-mentioned technical scheme, reset spring can realize automatic re-setting's effect to the response pole under the pressure condition.

Preferably, one end of the induction rod is in a circular arc shape, and a flexible protective cover is fixedly sleeved at one end of the induction rod.

Through above-mentioned technical scheme, soft protection casing receives the extrusion response pole behind the pressure when protecting response pole surface, and then promotes hydraulic oil, produces hydraulic pressure automatically.

Preferably, the inboard roof of pressure port has transversely seted up the water conservancy diversion hole, the one end in water conservancy diversion hole extends to nut threaded connection department, the water conservancy diversion hole with the inside of pressure port all is provided with hydraulic oil, the water conservancy diversion hole is close to the inner wall of screw thread has seted up first flexible hole, the inner wall of first flexible hole slides and pegs graft and has had first flexible piece, the top of first flexible piece with the same thread fixed connection of first flexible piece upper surface area in the screw thread, first flexible piece promotes through hydraulic oil pressure and stretches out locking behind the first flexible hole the screw thread.

Through above-mentioned technical scheme, first flexible piece stretches out and drives behind the first flexible hole and stretch out rather than the screw thread that upper surface area is the same, inserts the screw thread depths, reaches the locking effect.

Preferably, a second telescopic hole is formed in the tail end of the diversion hole, the inner wall of the second telescopic hole is obliquely and reversely formed, a second telescopic block is inserted into the inner wall of the telescopic hole in a sliding mode, and one end of the second telescopic block further locks the thread after extending out of the second telescopic hole in a sliding mode.

Through the technical scheme, the second telescopic block extends out of the second telescopic hole and then blocks the tail of the thread to prevent the thread from reversely rotating.

Preferably, the baffle ring is close to the end face of the nut and is fixedly provided with a sealing washer, a transparent cover is fixedly sleeved at the joint of the sealing washer and the nut, cobalt chloride is arranged in the transparent cover, and the cobalt chloride detects whether the joint of the nut leaks or not.

By the technical scheme, the cobalt chloride crystal is stable at room temperature, loses crystal water to turn blue when heated, and turns red in humid air. The aqueous solution is heated or concentrated with hydrochloric acid, chloride or organic solvent to turn blue.

The utility model provides a beneficial effect does:

1. through setting up pressure locking device, the liquid pressure that utilizes in the pipeline has reached the effect of self-locking, when high pressure appearing, the downthehole response pole of extrusion pressure, and then promote first flexible piece and the flexible piece of second behind the response pole extrusion hydraulic oil and stretch out the chucking screw thread, first flexible piece locking screw thread, the flexible piece of second stretches out and prevents the screw thread reverse rotation, and then makes under the high pressure or the water hammer condition appear, can reach the auto-lock and not appear not hard up problem.

2. Be provided with the cobalt chloride through the inside that sets up the translucent cover, utilize the cobalt chloride to meet the water and discolour and inform whether the maintainer takes place to leak to in time maintain.

Drawings

Fig. 1 is a schematic view of a three-way type pressure gauge union provided by the present invention;

fig. 2 is the utility model provides a pipeline structure local enlarged view of three way type manometer loose joint.

In the figure: 1. a pipeline; 2. a baffle ring; 3. a thread; 4. a nut; 5. a convex ring; 51. a pressure port; 52. tempering transparent glass; 53. a return spring; 54. an induction rod; 55. a flexible protective cover; 56. a flow guide hole; 57. a first telescopic hole; 58. a first telescopic block; 59. a second telescopic hole; 510. a second telescopic block; 511. a sealing gasket; 512. a transparent cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, the three-way type pressure gauge movable joint comprises a pipeline 1, wherein a baffle ring 2 is fixedly sleeved on the outer surface of the pipeline 1, which is close to the connection of a thread 3, the outer surface of the pipeline 1 is provided with the thread 3, and the thread 3 on the outer surface of the thread 3 is sleeved with a nut 4;

the interior of the pipe 1 is provided with a pressure locking device which locks the nut 4 by means of a locking thread 3.

Further, pressure locking device includes bulge loop 5, and bulge loop 5 fixed mounting has seted up pressure hole 51 at the surface of pipeline 1 in the inside of bulge loop 5, and the one end of pressure hole 51 extends to the inner wall of pipeline 1, and the interior roof of pressure hole 51 has toughened transparent glass 52 through the viewing aperture fixed mounting who sets up.

The inside of the pressure hole 51 can be observed through the tempered transparent glass 52.

Further, the inner top wall of the pressure hole 51 is fixedly connected with a return spring 53, the free end of the bottom end of the return spring 53 is fixedly connected with an induction rod 54, and the outer surface of the induction rod 54 is in sliding sleeve connection with the inner wall of the pressure hole 51.

The return spring 53 can achieve the effect of automatically returning the sensing rod 54 under the condition of no pressure.

Further, one end of the sensing rod 54 is arc-shaped, and a flexible protective cover 55 is fixedly sleeved on one end of the sensing rod 54.

The flexible protective cover 55 is pressed to press the sensing rod 54 while protecting the surface of the sensing rod 54, thereby pushing hydraulic oil to automatically generate hydraulic pressure.

Further, water conservancy diversion hole 56 has transversely been seted up to the inboard roof of pressure port 51, the one end of water conservancy diversion hole 56 extends to 4 threaded connection departments of nut, water conservancy diversion hole 56 all is provided with hydraulic oil with the inside of pressure port 51, water conservancy diversion hole 56 has been close to the inner wall of screw thread 3 and has been seted up first flexible hole 57, the inner wall of first flexible hole 57 slides and pegs graft and has first flexible piece 58, the same thread fixed connection of surface area on first flexible piece 58 in the top of first flexible piece 58 and the screw thread 3, first flexible piece 58 promotes through hydraulic oil pressure and stretches out locking screw thread 3 behind first flexible hole 57.

The first telescopic block 58 extends out of the first telescopic hole 57 and then drives the thread 3 with the same surface area as the upper surface area of the first telescopic block to extend out, and the first telescopic block is inserted into the deep part of the thread 3 to achieve the locking effect.

Furthermore, a second telescopic hole 59 is formed in the tail end of the diversion hole 56, the inner wall of the second telescopic hole 59 is obliquely and reversely formed, a second telescopic block 510 is inserted into the inner wall of the telescopic hole in a sliding mode, and one end of the second telescopic block 510 is further locked after extending out of the second telescopic hole 59 in a sliding mode.

The second telescopic block 510 extends out of the second telescopic hole 59 and then blocks the tail of the thread 3 to prevent the reverse rotation of the thread;

through setting up pressure locking device, the effect of self-locking has been reached to the hydraulic pressure that utilizes in the pipeline, when high pressure appears, the response pole 54 in the extrusion pressure hole 51, and then promote first flexible piece 58 and the flexible piece 510 of second and stretch out chucking screw thread 3 behind the response pole 54 extrusion hydraulic oil, first flexible piece 58 locking screw thread 3, the flexible piece 510 of second stretches out and prevents screw thread 3 reverse rotation, and then make under the high pressure or the water hammer condition appear, can reach the auto-lock and not appear not hard up problem.

Furthermore, a sealing washer 511 is fixedly mounted on the end face of the baffle ring 2 close to the nut 4, a transparent cover 512 is fixedly sleeved at the joint of the sealing washer 511 and the nut 4, cobalt chloride is arranged inside the transparent cover 512, and the cobalt chloride detects whether the joint of the nut 4 leaks or not.

The cobalt chloride crystal is stable at room temperature, loses crystal water to turn into blue when heated, and turns into red again in humid air. Heating or adding concentrated hydrochloric acid, chloride or organic solvent to turn blue;

be provided with the cobalt chloride through the inside that sets up translucent cover 512, utilize the cobalt chloride to meet the water and discolour and inform whether the maintainer takes place to leak to in time maintain.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a three way type manometer loose joint, includes pipeline (1), its characterized in that: a baffle ring (2) is fixedly sleeved on the outer surface of the pipeline (1) close to the connection of the threads (3), the threads (3) are arranged on the outer surface of the pipeline (1), and the nuts (4) are sleeved on the threads (3) on the outer surface of the threads (3);

and a pressure locking device is arranged in the pipeline (1), and the pressure locking device locks the nut (4) by locking the thread (3).

2. The movable joint of a three-way pressure gauge according to claim 1, wherein: the pressure locking device comprises a convex ring (5), the convex ring (5) is fixedly installed on the outer surface of the pipeline (1), a pressure hole (51) is formed in the convex ring (5), one end of the pressure hole (51) extends to the inner wall of the pipeline (1), and toughened transparent glass (52) is fixedly installed on the inner top wall of the pressure hole (51) through an observation port formed in the inner top wall.

3. The movable joint of a three-way pressure gauge according to claim 2, wherein: the inner top wall of the pressure hole (51) is fixedly connected with a return spring (53), the free end of the bottom end of the return spring (53) is fixedly connected with an induction rod (54), and the outer surface of the induction rod (54) is in sliding sleeve connection with the inner wall of the pressure hole (51).

4. The movable joint of a three-way pressure gauge according to claim 3, wherein: one end of the induction rod (54) is arc-shaped, and a flexible protective cover (55) is fixedly sleeved at one end of the induction rod (54).

5. The movable joint of a three-way pressure gauge according to claim 3, wherein: the utility model discloses a nut (4) screw thread, including screw thread (3), pressure hole (51), water conservancy diversion hole (56) and the inside of pressure hole (51) all is provided with hydraulic oil, water conservancy diversion hole (56) are close to first flexible hole (57) have been seted up to the inner wall of screw thread (3), the inner wall of first flexible hole (57) slides and pegs graft and has first flexible piece (58), the top of first flexible piece (58) with the screw thread fixed connection who is the same with first flexible piece (58) upper surface area in screw thread (3), first flexible piece (58) are promoted to stretch out through hydraulic oil pressure behind first flexible hole (57) locking screw thread (3).

6. The movable joint of a three-way pressure gauge according to claim 5, wherein: the tail end of the flow guide hole (56) is provided with a second telescopic hole (59), the inner wall of the second telescopic hole (59) is obliquely and reversely formed, a second telescopic block (510) is inserted into the inner wall of the telescopic hole in a sliding mode, and one end of the second telescopic block (510) further locks the thread (3) after extending out of the second telescopic hole (59) in a sliding mode.

7. The movable joint of a three-way pressure gauge according to claim 1, wherein: keep off ring (2) and be close to the terminal surface fixed mounting of nut (4) has seal ring (511), fixed translucent cover (512) of having cup jointed of seal ring (511) and nut (4) junction, the inside of translucent cover (512) is provided with cobalt chloride, the cobalt chloride detects whether leaking of nut (4) junction.