CN215767495U

CN215767495U - Durable type pressure instrument for refrigeration plant

Info

Publication number: CN215767495U
Application number: CN202121897995.8U
Authority: CN
Inventors: 陈芳明
Original assignee: Shaoxing Kedun Instrument Co ltd
Current assignee: Shaoxing Kedun Instrument Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-02-08
Anticipated expiration: 2031-08-13

Abstract

The utility model discloses a durable pressure instrument for refrigeration equipment, which comprises: the watch comprises a watch case, wherein the front end of the watch case is connected with a glass plate in a nested manner, and the rear end of the watch case is connected with a dial in a rotating manner; the connecting mechanism comprises a first fixing rod, an extension spring and a rubber block, and the bottom end of the connecting mechanism is directly in threaded connection with the pipeline; the inside block of pointer is connected with the dial, and the bottom block of dial is connected with the balance spring. The inner side of the first stabilizing block is connected with a spring tube in a clamping manner, and a bolt for fixing the spring tube is connected inside the spring tube; and the second fixing block penetrates through the right end of the spring tube and is hinged with a second fixing rod. This durable type pressure instrument for refrigeration plant, long service life not only need not often change, and long-term the use down detects the precision height moreover, and it is accurate to detect data to convenient to detach and this pressure instrument of change.

Description

Durable type pressure instrument for refrigeration plant

Technical Field

The utility model relates to the related technical field of pressure gauges, in particular to a durable pressure gauge for refrigeration equipment.

Background

The pressure instrument is used for measuring and indicating the pressure in a pressure product by taking an elastic element as a sensitive element, is very commonly applied and almost extends to all the fields of industrial processes and scientific researches, if the pressure product does not have the pressure instrument, the pressure of the product cannot be represented, and the personal safety can be directly endangered due to the overlarge pressure.

Chinese patent No. CN210221375U, publication date 3/31 2020, discloses a high-tightness pressure gauge, and belongs to the field of instruments and meters. The pressure gauge comprises a pressure gauge body, wherein a pressure detection module is arranged in the pressure gauge body, a pressure display module corresponding to the pressure detection module is arranged on the upper surface of the pressure gauge body, an air inlet nozzle is arranged on the pressure gauge body, threads for connecting other parts are arranged at the top end of the air inlet nozzle, a pressure gauge shell with holes is arranged outside the pressure gauge body, the air inlet nozzle extends out of the holes, an air hole is formed in the pressure gauge shell, a sealing plug is connected in the air hole, a visible transparent part is arranged at the bottom of the pressure gauge shell, and a first mounting hole and a second mounting hole are formed in the same side position of the upper end surface of the pressure gauge shell; and one end of the air inlet nozzle, which is close to the pressure meter shell, is also provided with a cylindrical end, and the cylindrical end is provided with an annular groove for mounting a sealing ring. The air tap is provided with a cylindrical end at one end close to the pressure gauge shell, and an annular groove is formed in the side face of the cylindrical end, so that a sealing ring is convenient to install, and the sealing effect is improved.

The prior art scheme among the above-mentioned has following defect, and not only life is short, needs often to change, uses down to detect the precision moreover for a long time and descends, leads to detecting data inaccurate to be not convenient for dismantle the change, there is the improvement space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a durable pressure instrument for refrigeration equipment, which solves the problems that the conventional durable pressure instrument for refrigeration equipment, which is provided by the background art, has short service life and needs to be frequently replaced, and the detection precision is reduced under long-term use, so that the detection data is inaccurate, and the disassembly and the replacement are inconvenient.

In order to achieve the purpose, the utility model provides the following technical scheme: a durable pressure gauge for a refrigeration unit, comprising:

the watch comprises a watch case, wherein the front end of the watch case is connected with a glass plate in a nested manner, and the rear end of the watch case is connected with a dial in a rotating manner;

the connecting mechanism comprises a first fixing rod, an extension spring and a rubber block, and the bottom end of the connecting mechanism is directly in threaded connection with the pipeline;

the inside block of pointer is connected with the dial, and the bottom block of dial is connected with the balance spring.

Preferably, the bottom of the watchcase is provided with a first limiting column in a penetrating manner, the inner side of the first limiting column is fixedly connected with a spring tube, and the outer side of the spring tube is in threaded connection with a sleeve.

Preferably, the bottom of the first limiting column is lapped with a screen plate, and the bottom of the screen plate is connected with a buffer tube;

wherein, the inboard threaded connection in bottom of first spacing post has the buffer tube, and the inside groove-shaped structure of buffer tube is the heliciform.

Preferably, the bottom of the buffer tube is in threaded connection with a connecting mechanism, the inner side of the connecting mechanism is in sliding connection with a first fixing rod, the outer side of the top of the first fixing rod is connected with an extension spring capable of resetting, and the bottom of the first fixing rod is connected with a rubber block in a clamping mode.

Preferably, the method further comprises the following steps:

the inner side of the first stabilizing block is connected with a spring tube in a clamping manner, and a bolt for fixing the spring tube is connected inside the spring tube;

the second stabilizing block penetrates through the right end of the spring tube and is hinged with a second fixing rod, the left end of the second fixing rod is connected with a dial in a meshed mode, and the top end of the dial is connected to the inside of the pointer in a clamped mode.

Preferably, the lower surface of the inner side of the watch case is connected with a second limiting column for limiting the second fixing rod, and the inner side of the watch case is connected with a dial for reading pressure in a clamping manner.

Compared with the prior art, the utility model has the beneficial effects that: the durable pressure instrument for the refrigeration equipment has the advantages that the service life is long, frequent replacement is not needed, the detection precision is high under long-term use, the detection data is accurate, and the pressure instrument is convenient to disassemble and replace;

1. when the pressure is too high, the second limiting column blocks the rotation of the second fixing rod, the spring tube is prevented from being damaged due to excessive bending, the buffer tube is internally of a spiral structure, the air flow plays a role in buffering, the air flow is prevented from directly impacting the spring tube, the spring tube is prevented from greatly fluctuating under the action of inertia, the protection effect is achieved, and the service life of the spring tube is prolonged;

2. the screen plate is arranged between the first limiting column and the buffer tube, and can filter out impurity and dust in airflow, so that the screen plate is prevented from being attached to the inner wall of the spring tube, the elasticity of the spring tube is prevented from changing, and the detection accuracy under long-term use is ensured;

3. the buffer tube is rotated to be separated from the threaded connection with the connecting mechanism, the first fixing rod is free from the stress, the first fixing rod slides upwards under the tension action of the extension spring, the rubber block on the first fixing rod is clamped and connected with the groove-shaped structure on the inner side of the connecting mechanism, gas is prevented from leaking, and the pressure instrument is convenient to disassemble.

Drawings

FIG. 1 is a front view of a cutaway structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 4 is a schematic top sectional view of the present invention;

FIG. 5 is a schematic front view of the present invention.

In the figure: 1. a watch case; 2. a first limit post; 3. a sleeve; 4. a screen plate; 5. a buffer tube; 6. a connecting mechanism; 7. a first fixing lever; 8. an extension spring; 9. a rubber block; 10. a spring tube; 11. a first stabilizing block; 12. a second stabilizing block; 13. a bolt; 14. a second fixing bar; 15. a dial; 16. a balance spring; 17. a pointer; 18. a second limit post; 19. a dial; 20. a glass plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a durable pressure gauge for a refrigeration unit, comprising: the watch comprises a watch case 1, a connecting mechanism 6 and a pointer 17, wherein the first limiting column 2 is in threaded connection with a sleeve 3, the top of the sleeve 3 is made of rubber, the sleeve 3 is rotated to move towards the top of the first limiting column 2, so that the top of the sleeve 3 is tightly connected with the watch case 1, the interior of the watch case 1 is sealed, and dust water mist is prevented from entering and damaging the watch case;

as shown in fig. 1, 3 and 4, when an air flow enters the connecting mechanism 6, after being buffered by the buffer tube 5, the air flow enters the spring tube 10 through the filtration of the screen 4, the spring tube 10 deforms under the action of pressure, the first fixing block 11 is hinged with the second fixing rod 14, the first fixing block 11 at the top end of the spring tube 10 drives the second fixing rod 14 to move upwards, the second fixing rod 14 is connected with the dial 15 in a meshing manner, the second fixing rod 14 drives the dial 15 to rotate, the dial 15 drives the pointer 17 to rotate, the internal pressure of the device can be read according to the dial 19, the second fixing block 12 is connected with the top end of the spring tube 10 in a clamping manner, the second fixing block 12 is made of silica gel, so that the inside of the spring tube 10 is sealed, the second limiting column 18 is convenient for blocking the second fixing rod 14 from rotating excessively, and the spring tube 10 is convenient to protect from being excessively deformed and damaged, the bolt 13 is convenient for fixing the spring tube 10, the spring tube 10 is reset when the pressure disappears, the balance spring 16 is convenient for pulling the needle dial 15 to reset, and the stress of the spring tube 10 is reduced;

as shown in fig. 1 and 2, when the pressure gauge needs to be replaced, the connection mode of the buffer tube 5 and the connection mechanism 6 is threaded connection, the buffer tube 5 is rotated to be disconnected from the connection mechanism 6, at this time, the first fixing rod 7 is free from acting force, a lifting structure is formed between the first fixing rod 7 and the buffer tube 5, under the tension of the extension spring 8, the first fixing rod 7 moves upwards, the connection mode of the rubber block 9 and the connection mechanism 6 is clamping connection, the rubber block 9 at the bottom end of the first fixing rod 7 is in clamping connection with a groove-shaped structure in the connection mechanism 6, so that gas in equipment is prevented from leaking, and the pressure gauge is convenient to detach for replacement or maintenance.

Those not described in detail in this specification are within the skill of the art. The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a durable type pressure instrument for refrigeration plant which characterized in that: the method comprises the following steps:

the watch comprises a watch case (1), wherein a glass plate (20) is connected to the front end of the watch case (1) in a nested manner, and a dial (15) is rotatably connected to the rear end of the watch case (1);

the connecting mechanism (6) comprises a first fixing rod (7), an extension spring (8) and a rubber block (9), and the bottom end of the connecting mechanism (6) is directly in threaded connection with the pipeline;

the inner part of the pointer (17) is connected with a dial (15) in a clamping way, and the bottom of the dial (15) is connected with a hairspring (16) in a clamping way.

2. A durable pressure gauge for a refrigeration unit, as defined in claim 1, wherein: the bottom of watchcase (1) runs through and installs first spacing post (2), and the inboard fixedly connected with spring pipe (10) of first spacing post (2) to the outside threaded connection of spring pipe (10) has sleeve (3).

3. A durable pressure gauge for a refrigeration unit, as defined in claim 2, wherein: the bottom of the first limiting column (2) is lapped with a screen plate (4), and the bottom of the screen plate (4) is connected with a buffer tube (5);

wherein, the inboard threaded connection in bottom of first spacing post (2) has buffer tube (5), and the inside groove-shaped structure of buffer tube (5) is the heliciform.

4. A durable pressure gauge for a refrigeration unit, as defined in claim 3, wherein: the bottom threaded connection of buffer tube (5) has coupling mechanism (6), and the inboard sliding connection of coupling mechanism (6) has first dead lever (7), and the top outside of first dead lever (7) is connected with extension spring (8) that can reset, the bottom block of first dead lever (7) is connected with rubber block (9).

5. A durable pressure gauge for a refrigeration unit, as defined in claim 1, wherein: further comprising:

the inner side of the first stabilizing block (11) is connected with a spring tube (10) in a clamping manner, and a bolt (13) for fixing the spring tube (10) is connected inside the spring tube (10);

and the second stabilizing block (12), wherein the second stabilizing block (12) penetrates through the top end of the spring tube (10).

6. A durable pressure gauge for a refrigerator as claimed in claim 5, wherein: the right end of the first stabilizing block (11) is hinged with a second fixing rod (14), the left end of the second fixing rod (14) is connected with a dial (15) in a meshed mode, and the top end of the dial (15) is connected to the inside of the pointer (17) in a clamped mode.

7. A durable pressure gauge for a refrigerator as claimed in claim 5, wherein: the lower surface of the inner side of the watchcase (1) is connected with a second limiting column (18) for limiting the second fixing rod (14), and the inner side of the watchcase (1) is connected with a dial (19) for reading pressure in a clamping mode.