CN218765712U

CN218765712U - Low temperature resistant type pressure gauge core

Info

Publication number: CN218765712U
Application number: CN202223373483.9U
Authority: CN
Inventors: 孙嘉晟; 崔海峰; 李�浩
Original assignee: Qingdao Guantuo Instrument Accessories Co ltd
Current assignee: Qingdao Guantuo Instrument Accessories Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-03-28
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a low temperature resistant type manometer core, which comprises a housing, the inside terminal surface of casing is provided with the core, the rear portion of core and be provided with the end cover at the casing terminal surface, nearly casing terminal surface is provided with the sealing ring on the end cover, the inner wall of sealing ring is provided with the heat preservation, the inner wall of heat preservation is provided with fixed inner ring, fixed inner ring's inner wall is provided with the heater strip, the periphery of sealing ring is provided with sealed gasbag, the outer terminal surface of end cover is provided with the concave part, and the relative both sides of inner wall of concave part are provided with connects the screw, it is provided with connecting bolt to connect the screw, the casing with between the end cover and in connection screw department use connecting bolt fixed connection. The utility model discloses can start the heater strip under low temperature environment, the heat that produces drives casing inner chamber temperature and rises for the core is in excellent performance's operating temperature within range, provides a good operational environment, reduces the spoilage, increase of service life.

Description

Low temperature resistant type pressure gauge core

Technical Field

The utility model relates to a relevant technical field of manometer core specifically is a low temperature resistant type manometer core.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates pressure higher than ambient pressure, and is visible everywhere in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance factories and shops and the like.

At present, in the application manometer field, the temperature of external world is to be noted, when the core in manometer and the manometer is in the lower temperature, damages easily, and then increases the cost of maintenance, change, leads to its detection accuracy and the life of manometer to receive the influence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low temperature resistant type manometer core to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low temperature resistant type manometer core, includes the casing, the inside terminal surface of casing is provided with the core, the rear portion of core and be provided with the end cover at the casing terminal surface, nearly casing terminal surface is provided with the sealing ring on the end cover, the inner wall of sealing ring is provided with the heat preservation, the inner wall of heat preservation is provided with fixed inner ring, fixed inner ring's inner wall is provided with the heater strip, the periphery of sealing ring is provided with sealed gasbag, the outer terminal surface of end cover is provided with the concave part, and the relative both sides of inner wall of concave part are provided with the connection screw.

Preferably, the connecting screw hole is provided with a connecting bolt.

Preferably, the casing and the bottom cover plate are fixedly connected by using a connecting bolt at a connecting screw hole.

Preferably, the transmission end of the movement is provided with a pointer, and the pointer is arranged on the outer end face of the casing.

Preferably, the outer circumferential surface of the sealing ring is made of soft rubber.

Preferably, the end surface of the bottom cover plate, which is arranged in the inner cavity of the casing, is provided with a connecting ring, and the connecting ring is provided with a matched annular groove on the inner end surface of the casing.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the heating wires arranged on the sealing ring, the heat preservation layer, the fixed inner ring and the inner wall of the fixed inner ring are embedded into the heating wire, the heating wire can be started in a low-temperature environment, and the generated heat drives the temperature of the inner cavity of the machine shell to rise, so that the machine core is positioned in a working temperature range with excellent performance, a good operation environment is provided, the damage rate is reduced, and the service life is prolonged;

2. the utility model discloses the sealing ring, the sealed gasbag that still set up simultaneously, through the sealed gasbag at the installation of sealing ring outer peripheral face, utilize sealed gasbag's elastic characteristic can effectively keep the connection stability of both structures behind combination casing and bottom deck, dismantle many times, can not damage the leakproofness effect of connection.

Drawings

FIG. 1 is a perspective view of the first perspective of the present invention;

FIG. 2 is a perspective view of the second perspective of the whole structure of the present invention;

FIG. 3 is a three-dimensional structure diagram of the overall third viewing angle of the present invention;

fig. 4 is an enlarged view of a structure in fig. 3 according to the present invention.

In the figure: 1. a housing; 2. a movement; 3. a bottom cover plate; 4. a seal ring; 5. a heat-insulating layer; 6. fixing the inner ring; 7. heating wires; 8. sealing the air bag; 9. a connecting screw hole; 10. and connecting bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a low temperature resistant type manometer core, which comprises a housing 1, core 2 is installed to the inside terminal surface screw of casing 1, the rear portion of core 2 and at 1 terminal surface installation of casing have end cover plate 3, nearly 1 terminal surface integrated into one piece of casing installs sealing ring 4 on end cover plate 3, the inner wall installation bonding of sealing ring 4 is fixed with heat preservation 5, the fixed inner ring 6 of the inner wall bonding fixedly connected with of heat preservation 5, the embedded heater strip 7 of installing of the inner wall of fixed inner ring 6, several sealed gasbag 8 is installed along the center in the periphery of sealing ring 4, and sealed

gasbag

8 and 1 inner wall in close contact with of casing, the outer terminal surface fluting of end cover plate 3 is left and is equipped with the concave part, the relative both sides welded mounting of inner wall of concave part has connection screw 9.

A connecting bolt 10 is rotatably arranged at the connecting screw hole 9; the machine shell 1 and the bottom cover plate 3 are fixedly connected through the connecting bolt 10 at the connecting screw hole 9, so that the machine shell 1 and the bottom cover plate 3 can be conveniently and fixedly connected; a pointer is arranged at the transmission end of the movement 2 and is arranged on the outer end surface of the machine shell 1; the peripheral surface of the sealing ring 4 is coated with soft rubber; the end surface of the bottom cover plate 3, which is arranged in the inner cavity of the casing 1, is welded with a connecting ring, and a groove of the connecting ring on the inner end surface of the casing 1 is reserved with a matched annular groove.

The working principle is as follows: the utility model discloses a when using, through connecting the reverse rotating connecting bolt 10 in screw 9 departments, make

bottom plate

3 and 1 separation of casing, the convenience dismouting, the convenience is overhauld the core 2 of 1 inner chamber installation of casing, sealing ring 4 at 3 end face mounting of bottom plate, and the heat preservation 5 of installation superposes in proper order at sealing ring 4 inner wall, fixed inner ring 6, through sealing ring 4, heat preservation 5, fixed inner ring 6, can start heater strip 7 under low temperature environment, the heat that produces drives 1 inner chamber temperature of casing and rises, make core 2 be in the operating temperature within range, a good operational environment is provided, and the air bag 8 at the installation of 4 outer peripheral faces of sealing ring, the stability of connection has been kept behind combination casing 1 and bottom plate 3, and the operation is simple, high durability and convenient use, and good use effect's advantage.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low temperature resistant type manometer core, includes casing (1), its characterized in that: the inside terminal surface of casing (1) is provided with core (2), the rear portion of core (2) and be provided with end cover (3) at casing (1) terminal surface, nearly casing (1) terminal surface is provided with sealing ring (4) on end cover (3), the inner wall of sealing ring (4) is provided with heat preservation (5), the inner wall of heat preservation (5) is provided with fixed inner ring (6), the inner wall of fixed inner ring (6) is provided with heater strip (7), the periphery of sealing ring (4) is provided with sealed gasbag (8), the outer terminal surface of end cover (3) is provided with the recess, and the relative both sides of inner wall of recess are provided with connects screw (9).

2. The movement of a low temperature resistant pressure gauge according to claim 1, characterized in that: the connecting screw hole (9) is provided with a connecting bolt (10).

3. The movement of a low temperature resistant pressure gauge according to claim 2, characterized in that: the shell (1) and the bottom cover plate (3) are fixedly connected through a connecting bolt (10) at a connecting screw hole (9).

4. The movement of a low temperature resistant pressure gauge according to claim 1, characterized in that: the transmission end of the movement (2) is provided with a pointer, and the pointer is arranged on the outer end face of the casing (1).

5. The movement of a low temperature resistant pressure gauge according to claim 1, characterized in that: the peripheral surface of the sealing ring (4) is made of soft rubber.

6. The movement of a low temperature resistant pressure gauge according to claim 1, characterized in that: the end face, arranged in the inner cavity of the shell (1), of the bottom cover plate (3) is provided with a connecting ring, and the connecting ring is provided with a matched annular groove in the inner end face of the shell (1).