CN214923948U

CN214923948U - Instrument rear cover dismounting device

Info

Publication number: CN214923948U
Application number: CN202022977684.4U
Authority: CN
Inventors: 王志彬; 黄京生; 姜兆波; 卢克勤; 颜勇; 胡军; 范国松; 王海潮; 王利梅
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-11-30
Anticipated expiration: 2030-12-11

Abstract

The application relates to a lid dismounting device behind instrument belongs to petroleum engineering technical field. Lid dismounting device behind instrument includes main part and a plurality of clamp subassembly. The main body comprises a handle part and a circular ring part, and one end of the handle part is connected with the outer wall of the circular ring part; the circular part is provided with a plurality of through holes which are distributed along the circumferential direction of the circular part, and two ends of the through holes are respectively communicated with the inner side and the outer side of the circular part. A plurality of clamp subassemblies are fixed respectively in a plurality of through-holes, just the clamp subassembly stretch out to the inboard adjustable length of ring portion, a plurality of clamp subassemblies are used for cramping the lid behind the instrument. When dismantling behind the instrument lid, adjust a plurality of clamp assemblies earlier for a plurality of clamp assemblies can the ring cover and cramp behind the instrument lid, then, grip handle portion rotation behind the instrument lid, can dismantle behind the instrument lid get off.

Description

Instrument rear cover dismounting device

Technical Field

The application relates to the technical field of petroleum engineering, in particular to a device for detaching a rear cover of an instrument.

Background

Along with the development of wisdom oil field, the instrument and meter of different specification and dimension are installed to the oil field well station, and the staff often need rotate to open behind the various instrument lid and change instrument battery or circuit board when maintaining the instrument at ordinary times.

However, to prevent water ingress, the back cover is typically screwed very firmly to the meter body, making manual removal of the back cover difficult. Therefore, there is a need in the art for a device for detaching a bezel.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a lid dismounting device behind instrument, can solve the technical problem that exists among the correlation technique, lid dismounting device behind instrument's technical scheme as follows:

the embodiment of the application provides a device for detaching a rear cover of an instrument, which comprises a main body and a plurality of clamp assemblies;

the main body comprises a handle part and a circular ring part, and one end of the handle part is connected with the outer wall of the circular ring part;

the circular part is provided with a plurality of through holes which are distributed along the circumferential direction of the circular part, and two ends of each through hole are respectively communicated with the inner side and the outer side of the circular part;

a plurality of clamp subassemblies are fixed respectively in a plurality of through-holes, just the clamp subassembly stretch out to the inboard adjustable length of ring portion, a plurality of clamp subassemblies are used for cramping the lid behind the instrument.

In one possible implementation, the clip assembly includes a clip, a snap, and a spring;

the clamp penetrates through the through hole, the clamp and the buckling piece are arranged side by side, and a first limiting structure is arranged on one side, facing the buckling piece, of the clamp;

one end of the clamping piece is hinged with the inner wall of the through hole, and a second limiting structure is arranged on one side, facing the hoop, of the clamping piece;

one end of the spring is connected with the inner wall of the through hole, the other end of the spring is connected with the clamping piece, and the spring presses the clamping piece and the clamp together, so that the first limiting structure is matched with the second limiting structure to fix the clamp in the through hole.

In one possible implementation, the through-hole includes a large hole portion and a small hole portion;

the large hole part is communicated with the small hole part, and a step wall is formed between the large hole part and the small hole part;

the clamp is inserted through the large hole part and the small hole part;

one end of the buckle piece close to the inner side of the circular ring part is hinged with the step wall;

the spring is located in the large hole portion, and one end of the spring is connected with the step wall.

In a possible implementation manner, the first limiting structure is a first sawtooth structure, the second limiting structure is a second sawtooth structure, a tooth tip of the first limiting structure faces the outer side of the circular portion, and a tooth tip of the second limiting structure faces the inner side of the circular portion.

In a possible implementation manner, an end surface of one end of the clamping band, which is located on the inner side of the circular ring part, is an arc-shaped concave surface and has a sawtooth structure.

In a possible implementation manner, the central axes of the through holes intersect with the central axis of the circular ring portion at a point, and the through holes are uniformly distributed along the circumferential direction of the circular ring portion.

In one possible implementation, the clip assembly and the through-hole are six.

In a possible implementation manner, one end of the handle portion, which is far away from the circular portion, is provided with a hanging through hole, and a central axis of the hanging through hole is parallel to a central axis of the circular portion.

In a possible implementation manner, the instrument rear cover dismounting device further comprises a magnetic steel, and the magnetic steel is fixed on the circular ring part.

In a possible implementation manner, the instrument rear cover dismounting device further comprises an insulating sheath sleeved outside the handle portion.

The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:

the embodiment of the application provides a lid dismounting device behind instrument, this lid dismounting device behind instrument includes main part and a plurality of clamp subassembly, and the main part includes handle portion and ring portion, and ring portion has a plurality of through-holes along circumference, and a plurality of clamp subassemblies are arranged in a plurality of through-holes respectively. When lid behind the lid dismounting device dismantled the instrument using the instrument, can make a plurality of clamp assemblies with lid cramp behind the instrument through the position of adjustment clamp assembly in the through-hole, then, grip handle portion rotation instrument back lid, can dismantle the lid behind the instrument and get off.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In the drawings:

FIG. 1 is a schematic view of a meter back cover dismounting device according to an embodiment of the present application;

FIG. 2 is a schematic view of a clip assembly shown in an embodiment of the present application;

fig. 3 is an external view of a meter back cover dismounting device according to an embodiment of the present application.

Illustration of the drawings:

1. a main body, 11, a handle part, 111, a hanging through hole, 12, a circular ring part, 121, a through hole, 1210, a step wall, 1211, a large hole part, 1212 and a small hole part;

2. the clamping device comprises a clamping band component 21, a clamping band 211, a first limiting structure 212, an end face 22, a clamping piece 221, a second limiting structure 23 and a spring;

3. magnetic steel;

4. an insulating sheath.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application provides a lid dismounting device behind instrument, as shown in fig. 1, lid dismounting device behind instrument includes main part 1 and a plurality of clamp subassembly 2. The body 1 includes a handle portion 11 and a circular ring portion 12, and one end of the handle portion 11 is connected to an outer wall of the circular ring portion 12. The circular portion 12 has a plurality of through holes 121, the plurality of through holes 121 are arranged along the circumference of the circular portion 12, and both ends of the through holes 121 communicate with the inside and outside of the circular portion 12, respectively. A plurality of clamp assemblies 2 are fixed respectively in a plurality of through-holes 121, and clamp assembly 2 stretches out to the inboard adjustable length of ring portion 12, and a plurality of clamp assemblies 2 are used for cramping the lid behind the instrument. Wherein, the instrument back cover dismounting device can also be called as a multifunctional wrench for dismounting the instrument back cover.

The main body 1 is a main body part of the meter back cover detaching device, and the main body 1 comprises a handle part 11 and a circular ring part 12. The circular portion 12 is used for installing the clip assembly 2, and a plurality of through holes 121 are specifically used for installing the clip assembly 2 along the circumferential direction. To facilitate the plurality of band assemblies 2 to better grip the meter back cover, for example, as shown in fig. 1, the central axes of the plurality of through holes 121 intersect with the central axis of the annular portion 12 at a point, and the plurality of through holes 121 are uniformly distributed along the circumferential direction of the annular portion 12. The number of the through holes 121 is not limited in the embodiment of the present application, and the number of the through holes 121 and the clip assemblies 2 may be 6, for example. The size of the main body 1 is not limited in the embodiments of the present application, and illustratively, the thickness of the main body 1 is 5mm, the outer diameter of the circular ring portion 12 is 126mm, the inner diameter of the circular ring portion 12 is 100mm, and the length of the handle portion 11 is 140 mm. The material of the body 1 may be steel.

The clamp component 2 is used for clamping the instrument rear cover, and the position of the clamp component 12 in the through hole 121 is adjustable, so that the clamp components 2 can be adapted to instrument rear covers of different sizes, and the application range of the instrument rear cover dismounting device is widened.

The embodiment of the application provides a lid dismounting device behind instrument, when using this lid dismounting device behind instrument, can make a plurality of clamp subassemblies 2 with the lid cramp behind the instrument through the position of adjustment clamp subassembly 2 in through-hole 121, then, hold handle portion 11 anticlockwise rotation instrument back lid, can dismantle the lid behind the instrument and get off.

When lid behind the installation instrument, can adjust the position of clamp subassembly 2 in through-hole 121 earlier, make a plurality of clamp subassemblies 2 cover behind the instrument cramp, then with the lid behind the instrument alignment instrument main part, hold handle portion 11 behind the clockwise rotation instrument lid, can install the lid behind the instrument to the instrument main part on promptly.

Through using lid dismounting device behind the instrument for the staff can dismantle the lid behind the instrument with a more laborsaving mode, and the lid is inseparabler with the instrument main part connection behind the instrument of installing together, and the instrument is inside to be difficult for appearing ponding phenomenon, extension instrument life.

The clip assembly 2 can be implemented in various ways, and the embodiment of the present application is not limited. In the following, several possible implementations are provided:

in one possible implementation, the clip assembly 2 may be a bolt, and the through hole 121 is a threaded through hole, and a plurality of bolts are respectively located in the plurality of through holes 121. The bolt can adjust the length of the through hole 121 by rotating in the through hole 121, so that the bolt can be adapted to meter back covers with different sizes.

In another possible implementation, as shown in fig. 2, the clip assembly 2 includes a clip 21, a catch 22, and a spring 23. The clamp 21 penetrates through the through hole 121, the clamp 21 and the fastener 22 are arranged side by side, and one side, facing the fastener 22, of the clamp 21 is provided with a first limiting structure 211. One end of the locking member 22 is hinged to the inner wall of the through hole 121, and a second limiting structure 221 is disposed on a side of the locking member 22 facing the clip 21. One end of the spring 23 is connected (e.g., hinged) to the inner wall of the through hole 121, and the other end is connected (e.g., hinged) to the catch 22, the spring 23 presses the catch 22 and the clip 21 together, and the first and

second stoppers

211 and 221 cooperate to fix the clip 21 in the through hole 121.

The thickness of the clamp 21 may be 2.5mm, the length may be 3mm, the width of the end of the clamp 21 located on the inner side of the circular portion 12 may be 3mm, and the width of the end located on the outer side of the circular portion 12 may be 5.5 mm.

The catch 22 may be 2.5mm thick and 2mm wide.

The material of the clip 21 and the clip 22 may be steel.

When the length of the clamp 21 extending out is adjusted, the clamping piece 22 is separated from the clamp 21, then the clamp 21 is adjusted to a target position, the clamping piece 22 and the clamp 21 are clamped together, and under the action of the spring 23, the clamping piece 22 compresses the clamp 21 and fixes the clamp in the through hole 121.

The present application is not limited to the specific form of the through hole 121, and as shown in fig. 2, in one possible implementation, the through hole 121 includes a large hole portion 1211 and a small hole portion 1212. The large hole portion 1211 communicates with the small hole portion 1212, and a stepped wall 1210 is formed between the large hole portion 1211 and the small hole portion 1212. The clip 21 passes through the large hole portion 1211 and the small hole portion 1212. The end of the catch 22 near the inside of the circular portion 12 is hinged to the step wall 1210. The spring 23 is located in the large hole portion 1211, and one end of the spring 23 is connected to the stepped wall 1210.

The size of the small hole 1211 can be matched with the size of the clip 21, so that the clip 21 can be prevented from shaking in the small hole 1211, and the clip 21 can be more firmly fixed in the through hole 121.

The specific forms of the first limiting structure 211 and the second limiting structure 221 are not limited in the embodiments of the present application. In one possible implementation manner, as shown in fig. 2, the first limiting structure 211 is a first sawtooth structure, the second limiting structure 221 is a second sawtooth structure, and the tooth tip of the first limiting structure 211 faces the outer side of the circular ring part 12, and the tooth tip of the second limiting structure 221 faces the inner side of the circular ring part 12.

Through the outside of setting up the prong of first limit structure 211 towards ring portion 12, the prong of second limit structure 221 is towards the inboard of ring portion 12 for when clamp 21 moves in through-hole 121, under the state that buckle 22 compressed tightly clamp 21, clamp 21 can be smooth move towards ring portion 12's inboard, thereby make things convenient for the staff to adjust the position of clamp 21 in through-hole 121. However, the clamp 21 cannot move toward the outside of the circular portion 12 unless the catch 22 is removed, thereby preventing the clamp 21 from being forced outward, so that the clamp 21 can firmly clamp the meter back cover.

In order to enable the clamp 21 to grip the meter back cover and avoid the slip phenomenon, as shown in fig. 2, an end surface 212 of the clamp 21 at one end inside the circular ring portion 12 is an arc-shaped concave surface and has a sawtooth structure.

In order to conveniently store the meter back cover detaching device, as shown in fig. 3, one end of the handle portion 11 away from the circular ring portion 12 is provided with a hanging through hole 111, and the axial direction of the hanging through hole 111 is parallel to the axial direction of the circular ring portion 12. Through setting up and hanging through-hole 111 for lid dismounting device behind the instrument can hang very conveniently when not using. The diameter of the hanging through hole 111 is not limited in the embodiments of the present application, and the diameter of the hanging through hole 111 may be 16mm, for example.

As shown in fig. 3, the instrument rear cover dismounting device further includes a magnetic steel 3, and the magnetic steel 3 is fixed to the circular ring portion 12. For example, the magnetic steel 3 may be located on the central axis of the meter rear cover dismounting device.

The magnetic steel 3 is alnico, which is synthesized from several hard strong metals, such as iron, aluminum, nickel, cobalt, etc., or copper, niobium, and tantalum. When the magnetic steel 3 is close to the instrument and passes through the instrument in a certain direction, the instrument can be activated to get rid of a dormant state, so that the instrument can normally display data such as pressure, temperature and the like.

Through setting up magnet steel 3 at ring portion 12 for the staff is when overhauing the instrument, can hand instrument dismounting device and make ring portion 12 be close to the instrument, so that magnet steel 3 activates the instrument, breaks away from the dormant state, then, the staff can look over the numerical value that the instrument shows. And, whether staff can also normally show according to the instrument, judge whether the instrument is out of order, if judge the instrument trouble, then can use behind the instrument lid dismounting device to dismantle the back lid of instrument to overhaul the instrument.

As shown in fig. 3, the meter back cover detaching device may further include an insulating sheath 4, and the insulating sheath 4 is sleeved on the outer side of the handle portion 11. Illustratively, the material of the insulating sheath 4 may be high temperature resistant insulating polyimide.

Through cup jointing insulating sheath 4 in the outside of handle portion 11 for the staff can hold insulating sheath 4 and use lid dismounting device behind the instrument, can prevent skidding, improves staff's the sense of gripping.

Moreover, since most instruments are electrified, the insulating sheath 4 is added to prevent the danger of electric shock of workers.

In addition, in order to make the instrument back cover detaching device have more functions, in a possible implementation manner, the annular portion 12 may have a plurality of holes, and the size of the plurality of holes may be matched with instrument fastening bolts commonly used for instruments, so that the instrument back cover detaching device may also detach the instrument fastening bolts.

In the instrument rear cover dismounting device provided by the embodiment of the application, the clamp 21, the fastener 22 and the spring 23 are mutually matched to form a linkage mechanism, the mechanism is connected with the fastener 22 through the spring 23, meanwhile, the fastener 22 is propped against, the clamp 21 is inserted from a gap between the fastener 22 and the through hole 121, a first sawtooth structure of the clamp 21 collides with a second sawtooth structure of the fastener 22 during insertion, then, the clamp 21 is continuously pushed to move forwards, and the clamp 21 can be blocked and prevented from retreating when reaching a preset position. When the clamp 21 retreats, the locking member 22 can be manually moved backward, the second saw tooth structure of the locking member 22 is separated from the first saw tooth structure of the clamp 21, and the clamp 21 can be pulled out. Evenly distribute 6 above-mentioned link gear on ring portion 12, 6 link gear mutually support, can adjust into different shapes, the not tight ring of hoop of different radius size to can interlock and dismantle the instrument back cover of different size. In addition, magnet steel 3 inlays in ring portion 12 for the dormant state of activation instrument, the on-the-spot pressure numerical value of being convenient for look over.

The instrument rear cover dismounting device provided by the embodiment of the application has the advantages of being simple in structure, small in size, convenient to carry, simple to manufacture and easy to operate, effectively reducing labor intensity of workers, solving the problems of dismounting and sealing of the instrument rear cover, and prolonging the service life of an instrument.

In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The dismounting device for the back cover of the instrument is characterized by comprising a main body (1) and a plurality of clamp assemblies (2);

the main body (1) comprises a handle part (11) and a circular ring part (12), wherein one end of the handle part (11) is connected with the outer wall of the circular ring part (12);

the circular part (12) is provided with a plurality of through holes (121), the through holes (121) are distributed along the circumferential direction of the circular part (12), and two ends of each through hole (121) are respectively communicated with the inner side and the outer side of the circular part (12);

a plurality of clamp subassemblies (2) are fixed respectively in a plurality of through-holes (121), just clamp subassembly (2) stretch out to the inboard adjustable length of ring portion (12), a plurality of clamp subassemblies (2) are used for cramping the lid behind the instrument.

2. The meter back cover dismounting device according to claim 1, wherein the clip assembly (2) comprises a clip (21), a snap (22) and a spring (23);

the clamp (21) penetrates through the through hole (121), the clamp (21) and the buckling piece (22) are arranged side by side, and a first limiting structure (211) is arranged on one side, facing the buckling piece (22), of the clamp (21);

one end of the buckling piece (22) is hinged with the inner wall of the through hole (121), and a second limiting structure (221) is arranged on one side, facing the hoop (21), of the buckling piece (22);

one end of the spring (23) is connected with the inner wall of the through hole (121), the other end of the spring is connected with the buckle piece (22), the spring (23) presses the buckle piece (22) and the clamp (21) together, so that the first limiting structure (211) is matched with the second limiting structure (221), and the clamp (21) is fixed in the through hole (121).

3. The meter rear cover detachment device according to claim 2, wherein the through hole (121) includes a large hole portion (1211) and a small hole portion (1212);

the large hole portion (1211) is communicated with the small hole portion (1212), and a stepped wall (1210) is formed between the large hole portion (1211) and the small hole portion (1212);

the clamp (21) passes through the large hole portion (1211) and the small hole portion (1212);

one end of the buckle piece (22) close to the inner side of the circular part (12) is hinged with the step wall (1210);

the spring (23) is located in the large hole portion (1211), and one end of the spring (23) is connected to the stepped wall (1210).

4. The meter back cover dismounting device according to claim 2, wherein the first limiting structure (211) is a first saw-tooth structure, the second limiting structure (221) is a second saw-tooth structure, and the tooth tips of the first limiting structure (211) face the outer side of the circular part (12), and the tooth tips of the second limiting structure (221) face the inner side of the circular part (12).

5. The meter back cover dismounting device according to claim 2, wherein an end surface (212) of the clamp (21) at one end inside the circular ring part (12) is arc-shaped concave and has a sawtooth structure.

6. The meter back cover dismounting device according to any one of claims 1-5, wherein the central axes of the plurality of through holes (121) intersect the central axis of the circular ring part (12) at a point, and the plurality of through holes (121) are uniformly arranged along the circumferential direction of the circular ring part (12).

7. The meter back cover dismounting device according to claim 6, wherein the clip assembly (2) and the through hole (121) are six.

8. The meter back cover dismounting device according to any one of claims 1-5, wherein an end of the handle portion (11) away from the circular ring portion (12) has a hanging through hole (111), and an axial direction of the hanging through hole (111) is parallel to an axial direction of the circular ring portion (12).

9. The meter back cover dismounting device according to any one of claims 1-5, further comprising a magnetic steel (3), wherein the magnetic steel (3) is fixed to the circular ring portion (12).

10. The meter back cover dismounting device according to any one of claims 1-5, further comprising an insulating sheath (4), wherein the insulating sheath (4) is sleeved outside the handle portion (11).