CN216815636U

CN216815636U - Gas meter shell with cover opening prevention structure

Info

Publication number: CN216815636U
Application number: CN202220445024.8U
Authority: CN
Inventors: 陈敏国
Original assignee: Ningbo Wellys Metering Co ltd
Current assignee: Ningbo Wellys Metering Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-24
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a gas meter shell with an anti-cover-opening structure, which comprises a base and an upper cover component, wherein the upper cover component is fixed on the base, a plurality of blind holes are circumferentially arranged on the base, a threaded sleeve is embedded in each blind hole, countersunk holes which vertically correspond to the blind holes one by one are arranged on the upper cover component, the upper cover component is fixed with the base through bolts which are arranged in the countersunk holes in a penetrating manner and are in threaded connection with the threaded sleeves, a plugging cap is embedded in an opening at the upper end of each countersunk hole, each plugging cap is tightly matched with the countersunk hole at the corresponding position, and the upper end surface of the plugging cap is flush with or lower than the upper end surface of the countersunk hole; compared with the traditional mode of locking the upper cover assembly and the base by adopting lead seal bolts and lead seals, the utility model can bring convenience to the locking of the upper cover assembly and the base.

Description

Gas meter shell with cover opening prevention structure

Technical Field

The utility model relates to the technical field of gas meter shells, in particular to a gas meter shell with a cover opening prevention structure.

Background

The gas meter is a device for metering the gas quantity used by a user, the gas meter on the market at present mainly comprises a gas meter shell and a meter body fixed in the gas meter shell, the gas meter shell comprises a base and an upper cover component, the upper cover component is fixed on the base, the upper cover component and the base in the gas meter shell are generally fixed through lead seal bolts, after the upper cover component and the base are fixed through the lead seal bolts, lead seals are required to be arranged on the lead seal bolts, therefore, the situation that irrelevant personnel randomly open the upper cover component can be avoided, however, in the gas meter shell, the upper cover component and the base are required to be locked through the lead seal bolts and the lead seals, and therefore the defect that the upper cover component and the base are inconvenient to lock exists.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a gas meter shell with an anti-cover-opening structure, which can bring convenience to the locking of an upper cover assembly and a base.

The utility model discloses a gas meter shell with an anti-uncovering structure, which comprises a base and an upper cover component, wherein the upper cover component is fixed on the base, a plurality of blind holes are circumferentially arranged on the base, a threaded sleeve is embedded in each blind hole, countersunk holes which vertically correspond to the blind holes one by one are arranged on the upper cover component, the upper cover component is fixed with the base through bolts which are arranged in the countersunk holes in a penetrating manner and are in threaded connection with the threaded sleeves, a plugging cap is embedded in an opening at the upper end of each countersunk hole, each plugging cap is tightly matched with the countersunk hole at the corresponding position, and the upper end face of the plugging cap is flush with or lower than the upper end face of the countersunk hole.

The utility model relates to a gas meter shell with an anti-uncovering structure, wherein the outer wall of each blocking cap is circumferentially provided with a plurality of convex ribs, each convex rib extends along the axial direction of the blocking cap, and after the blocking cap is embedded into a counter bore, the convex ribs are used for being tightly matched with the inner wall of the counter bore; after a plurality of convex ribs are circumferentially arranged on the outer wall of the blocking cap, the blocking cap is embedded into the counter sink, and under the action of the convex ribs, the blocking cap can be further tightly matched with the counter sink, so that the strength of the blocking cap after being tightly matched with the counter sink is improved.

The gas meter shell with the cover opening prevention structure is characterized in that the outer wall of each convex rib is provided with an inclined surface, and each inclined surface inclines towards one side of the blocking cap from top to bottom; after all setting up the inclined plane on the outer wall of every protruding muscle, when stifled cap and counter sink gomphosis, the inclined plane that is located on the protruding muscle can cooperate the direction so that protruding muscle imbeds in the counter sink with the inner wall of counter sink.

The utility model relates to a gas meter shell with an anti-uncovering structure, wherein the middle parts of the left side wall and the right side wall of an upper cover component are respectively provided with a clamping hole, a base is provided with clamping blocks which are in one-to-one correspondence with the clamping holes, and after the upper cover component is assembled on the base, each clamping hole is used for being matched and clamped with the clamping block at the corresponding position; through all set up the card hole and set up on the base with the fixture block of card hole one-to-one on two lateral walls about the upper cover subassembly after, when upper cover subassembly and base assembly, every card hole homoenergetic can with correspond the fixture block cooperation joint on the position, so, the upper cover subassembly can be fixed in advance with the base to pass through the in-process of bolt fastening upper cover subassembly and base in the later stage, need not to hold up the upper cover subassembly, thereby can bring the convenience for the fixed of upper cover subassembly and base.

According to the gas meter shell with the cover opening prevention structure, each clamping block is provided with the chamfer surface, and the chamfer surfaces are matched with the inner wall of the upper cover component for guiding so that the clamping blocks can be clamped into the clamping holes conveniently; after the chamfer surface is arranged on the clamping block, when the upper cover assembly is assembled with the base, the chamfer surface on the clamping block can be matched with the inner wall of the upper cover assembly to guide so that the clamping block can be clamped into the clamping hole.

The gas meter shell with the cover opening prevention structure comprises a shell body, a plurality of convex teeth, a plurality of elastic pieces and a plurality of elastic pieces, wherein the outer wall of a threaded sleeve is circumferentially provided with the plurality of convex teeth; after adopting this kind of structure, can improve firmness and reliability behind swivel nut and the blind hole gomphosis, and when bolt and swivel nut threaded connection, can effectively avoid the relative blind hole pivoted condition to appear in the swivel nut.

After the upper cover assembly and the base are fastened through the bolts, the upper cover assembly and the base can be prevented from being detached from the base by only embedding the blocking cap in the counter bore and screwing the bolts again, so that compared with the traditional mode of locking the upper cover assembly and the base by adopting lead sealing bolts and lead seals, the locking of the upper cover assembly and the base is convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

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

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2;

FIG. 5 is an enlarged view of B in FIG. 3;

FIG. 6 is a schematic perspective view of the plugging cap;

fig. 7 is a schematic perspective view of the screw insert.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the utility model. That is, in some embodiments of the utility model, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model discloses a gas meter shell with an anti-uncovering structure, which comprises a base 1 and an upper cover component 2, wherein the upper cover component 2 is fixed on the base 1, a plurality of blind holes 11 are circumferentially arranged on the base 1, a threaded sleeve 3 is embedded in each blind hole 11, countersunk holes 21 which vertically correspond to the blind holes 11 one by one are arranged on the upper cover component 2, the upper cover component 2 is fixed with the base 1 through bolts which penetrate through the countersunk holes 21 and are in threaded connection with the threaded sleeves 3, plugging caps 4 are embedded in openings at the upper ends of the countersunk holes 21, each plugging cap 4 is tightly matched with the countersunk hole 21 at the corresponding position, and the upper end face of each plugging cap 4 is flush with the upper end face of the countersunk hole 21 or lower than the upper end face of the countersunk hole 21.

A plurality of convex ribs 41 are circumferentially arranged on the outer wall of each plugging cap 4, each convex rib 41 extends along the axial direction of the plugging cap 4, and after the plugging cap 4 is embedded into the counter sink 21, the convex ribs 41 are used for being tightly matched with the inner wall of the counter sink 21; after a plurality of convex ribs are circumferentially arranged on the outer wall of the blocking cap, the blocking cap is embedded into the counter sink, and the blocking cap can be further tightly matched with the counter sink under the action of the convex ribs, so that the strength of the blocking cap after being tightly matched with the counter sink is improved.

The outer wall of each convex rib 41 is provided with an inclined surface 42, and each inclined surface 42 inclines towards one side of the plugging cap 4 from top to bottom; after all setting up the inclined plane on the outer wall of every protruding muscle, when stifled cap and counter sink gomphosis, the inclined plane that is located on the protruding muscle can cooperate the direction so that protruding muscle imbeds in the counter sink with the inner wall of counter sink.

The middle parts of the left side wall and the right side wall of the upper cover assembly 2 are respectively provided with a clamping hole 22, the base 1 is provided with clamping blocks 12 which are in one-to-one correspondence with the clamping holes 22, and after the upper cover assembly 2 is assembled on the base 1, each clamping hole 22 is used for being matched and clamped with the clamping block 12 on the corresponding position; through all set up the card hole and set up on the base with the fixture block of card hole one-to-one on two lateral walls about the upper cover subassembly after, when upper cover subassembly and base assembly, every card hole homoenergetic can with correspond the fixture block cooperation joint on the position, so, the upper cover subassembly can be fixed in advance with the base to pass through the in-process of bolt fastening upper cover subassembly and base in the later stage, need not to hold up the upper cover subassembly, thereby can bring the convenience for the fixed of upper cover subassembly and base.

Each fixture block 12 is provided with a chamfer surface 13, and the chamfer surfaces 13 are matched with the inner wall of the upper cover component 2 for guiding so that the fixture blocks 12 can be clamped into the fixture holes 22; after the chamfer surface is arranged on the clamping block, when the upper cover assembly is assembled with the base, the chamfer surface on the clamping block can be matched with the inner wall of the upper cover assembly to guide so that the clamping block can be clamped into the clamping hole.

A plurality of convex teeth 31 are circumferentially arranged on the outer wall of the screw sleeve 3, each convex tooth 31 extends along the axial direction of the screw sleeve 3, two ends of each convex tooth 31 respectively extend to two end parts of the screw sleeve 3, and after the screw sleeve 3 is embedded into the blind hole 11, the convex teeth 31 are used for expanding tightly with the inner wall of the blind hole 11; after adopting this kind of structure, can improve firmness and reliability behind swivel nut and the blind hole gomphosis, and when bolt and swivel nut threaded connection, can effectively avoid the relative blind hole pivoted condition to appear in the swivel nut.

When the upper cover assembly is fixed with the base, the upper cover assembly is firstly covered on the base, the clamping holes in the upper cover assembly are matched and clamped with the clamping blocks in the base, after the clamping holes are matched and clamped with the clamping blocks, pre-fixing can be achieved between the upper cover assembly and the base, then bolts are installed in each countersunk hole and are screwed with the threaded sleeves, and finally the plugging caps are embedded into the openings of the countersunk holes.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a gas table watchcase with prevent uncapping structure, includes base (1) and upper cover subassembly (2), upper cover subassembly (2) are fixed on base (1), its characterized in that: circumference is provided with a plurality of blind hole (11) on base (1), every all be inlayed in blind hole (11) and be had swivel nut (3), be provided with on upper cover subassembly (2) and every blind hole (11) vertical correspondence's counter sink (21), upper cover subassembly (2) are fixed with base (1) through wearing to establish in counter sink (21) and with swivel nut (3) threaded connection's bolt, every the opening part of counter sink (21) upper end all is embedded to have stifled cap (4), every stifled cap (4) all with counter sink (21) tight fit on the corresponding position, the up end of stifled cap (4) flushes or is less than the up end of counter sink (21) with the up end of counter sink (21).

2. The gas meter shell with the opening-proof structure according to claim 1, wherein a plurality of ribs (41) are circumferentially arranged on the outer wall of each plugging cap (4), each rib (41) extends along the axial direction of the plugging cap (4), and after the plugging cap (4) is embedded into the counter bore (21), the ribs (41) are used for tightly fitting with the inner wall of the counter bore (21).

3. The gas meter case with the opening-proof structure according to claim 2, wherein each rib (41) is provided with a slope (42) on the outer wall, and each slope (42) is inclined from top to bottom toward one side of the plugging cap (4).

4. The gas meter shell with the cover opening prevention structure according to any one of claims 1 to 3, wherein the middle parts of the left side wall and the right side wall of the upper cover assembly (2) are provided with clamping holes (22), the base (1) is provided with clamping blocks (12) corresponding to the clamping holes (22), and after the upper cover assembly (2) is assembled on the base (1), each clamping hole (22) is used for being matched and clamped with the clamping block (12) in the corresponding position.

5. The gas meter case with the opening prevention structure according to claim 4, wherein each fixture block (12) is provided with a chamfered surface (13), and the chamfered surface (13) is used for being matched and guided with the inner wall of the upper cover component (2) so as to facilitate the fixture block (12) to be clamped into the fixture hole (22).

6. The gas meter shell with the cover opening preventing structure according to claim 5, wherein a plurality of convex teeth (31) are circumferentially arranged on the outer wall of the screw sleeve (3), each convex tooth (31) extends along the axial direction of the screw sleeve (3), two ends of each convex tooth (31) respectively extend to two end parts of the screw sleeve (3), and after the screw sleeve (3) is embedded into the blind hole (11), the convex teeth (31) are used for tightly expanding with the inner wall of the blind hole (11).