CN210123297U

CN210123297U - Gas meter case

Info

Publication number: CN210123297U
Application number: CN201821193354.2U
Authority: CN
Inventors: 周卫民
Original assignee: Changzhou Jintan Jin Yuan Electronics Co Ltd
Current assignee: Changzhou Jintan Jin Yuan Electronics Co Ltd
Priority date: 2018-07-26
Filing date: 2018-07-26
Publication date: 2020-03-03
Anticipated expiration: 2028-07-26

Abstract

The utility model relates to a gas meter shell, which comprises a shell, a U-shaped fixed seat, an air inlet joint and an air outlet joint, the shell consists of an upper shell, a lower shell and an extension shell arranged between the upper shell and the lower shell, the air inlet joint is arranged at the top of the upper shell, the air outlet joint is arranged on the side wall of the upper shell, the air outlet joint is provided with two guide interfaces, an inner joint is respectively arranged in the two guide interfaces, the inner joint is connected in the guide interface through a first spring, the outer wall of the inner joint is sleeved with a piston type plug, the piston type plug is in clearance fit with the inner wall of the guide interface, two air supply pipelines are further arranged in the air outlet connector, and one end of each air supply pipeline communicated with the guide interface is sealed through the piston type plug. The design has the advantages of simple structure, easy manufacture, practicality and high efficiency.

Description

Gas meter case

Technical Field

The utility model relates to a gas table technical field, specificly relate to a gas meter case.

Background

The gas meter mainly comprises a machine core, an indicating device, a shell, a counting display and other main parts. The gas meter has high precision requirement, the internal structure cannot be changed easily, and the structure inside the gas meter cannot be misplaced, so that the gas meter is damaged. Gas meter case in the existing market includes the epitheca, the inferior valve, the epitheca includes the casing body, the air inlet, the gas outlet, the epirelief is followed, the inferior valve includes casing body and protruding edge down, on, the casing passes through sealing member sealing connection down, the core is located the shell, do not set up damping device between shell and the core, just probably because jolt in the transportation gas table process, the collision leads to the gas table impaired, and along with long-time use, the joint of giving vent to anger of gas meter case is blockked up very easily, in case block up the back gas meter then can't continue to use, thereby cause very big trouble.

Disclosure of Invention

The utility model arranges two guiding interfaces on the air outlet connector, when one guiding interface is blocked, the air can be continuously supplied through the other guiding interface, thereby increasing the practical performance; a gas meter housing is provided.

In order to solve the technical problem, the utility model provides a gas meter shell, which comprises a shell, wherein the shell consists of an upper shell, a lower shell and an extension shell arranged between the upper shell and the lower shell, a U-shaped fixed seat is provided, two sides of the lower end of the upper shell are provided with first connecting seats, two sides of the upper end of the extension shell are provided with second connecting seats, the first connecting seat and the second connecting seats are fixed in the U-shaped fixed seat, the U-shaped fixed seat is connected with the first connecting seat and the second connecting seat through bolts, a rubber sealing gasket is arranged between the U-shaped fixed seat and the first connecting seat and between the U-shaped fixed seat and the second connecting seat, an air inlet joint is arranged at the top of the upper shell, an air outlet joint is arranged on the side wall of the upper shell, two guide interfaces are arranged on the air outlet joint, the air outlet connector is internally provided with two air supply pipelines, one end of each air supply pipeline is connected with one guide interface, the other end of each air supply pipeline is communicated with the upper shell, one end of each air supply pipeline communicated with the guide interface is sealed through the piston plug, and the side wall of the inner connector is further provided with a first vent hole.

Further: the outer side of one of the two inner connectors is movably connected with an outer connector, one end of the outer connector extends into the guide interface and is connected with the piston type plug, a second vent hole is formed in the outer wall of the outer connector, the second vent hole faces the first vent hole, the piston type plug extrudes the first spring through the inner connector under the action of the outer connector, the air supply pipeline faces the second vent hole, the air supply pipeline is communicated with the first vent hole through the second vent hole, and the other end of the outer connector is connected with an air supply pipe.

And further: the air outlet connector outside the two guide interfaces is provided with a circular connecting end, the circular connecting end is connected with a nut cover, the outer wall of the circular connecting end is provided with external threads matched with the nut cover, the external connector penetrates through the nut cover, the outer wall of the external connector is provided with a limiting seat, and the limiting seat is in contact with the inner wall of the nut cover.

And further: the horizontal distance from the right end face of the piston type plug to the first vent hole is the same as the horizontal distance from the left end of the outer joint to the second vent hole.

And further: the outer joint and the direction interface between be provided with positioning mechanism, positioning mechanism including offer connecting hole on the direction interface inner wall, offer hemisphere draw-in groove, spherical dop and the second spring on the outer joint outer wall, spherical dop pass through second spring coupling in the connecting hole, spherical dop block hemisphere draw-in groove under the effect of second spring in, when sphere dop block is gone into hemisphere draw-in groove, the one end of air supply pipe way and direction interface intercommunication is just facing the second air vent.

And further: the upper end of lower casing seted up the guide way, the lower extreme swing joint of extension casing in the guide way, the lower extreme and the guide way of extension casing be clearance fit, the lateral wall of lower casing upper end on still seted up the tight screw hole in top, the tight screw hole in top be connected with the tight bolt in top, the tight bolt in top pass the tight screw hole in top and link to each other with the extension casing.

After the structure is adopted, the air outlet connector is provided with the two guide interfaces, when one guide interface is blocked, air can be continuously supplied through the other guide interface, and the effect of increasing the practical performance of the air outlet connector is achieved; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the air outlet joint.

Fig. 3 is an enlarged view of a in fig. 2.

Detailed Description

As shown in fig. 1 and 2, the gas meter housing includes a housing, a U-shaped fixing seat 7, a gas inlet joint 3 and a gas outlet joint 9, the housing is composed of an upper housing 1, a lower housing 2-2 and an extension housing 2-1 arranged between the upper housing 1 and the lower housing 2-2, two sides of the lower end of the upper housing 1 are provided with first connecting seats 4, two sides of the upper end of the extension housing 2-1 are provided with second connecting seats 5, the first connecting seats 4 and the second connecting seats 5 are fixed in the U-shaped fixing seat 7, the U-shaped fixing seat 7 is connected with the first connecting seats 4 and the second connecting seats 5 through bolts 8, a rubber gasket 6 is arranged between the U-shaped fixing seat 7 and the first connecting seats 4 and the second connecting seats 5, the gas inlet joint 3 is arranged at the top of the upper housing 1, the air outlet joint 9 is arranged on the side wall of the upper shell 1, the air outlet joint 9 is provided with two guide interfaces 10, an inner joint 11 is arranged in each of the two guide interfaces 10, the inner joint 11 is connected into the guide interfaces 10 through a first spring 19, the outer wall of the inner joint 11 is sleeved with a piston type plug 11-2, the piston type plug 11-2 is movably connected into the guide interfaces 10 along with the inner joint 11, the piston type plug 11-2 is in clearance fit with the inner wall of the guide interfaces 10, the air outlet joint 9 is further provided with two air supply pipelines 9-2, one end of each of the two air supply pipelines 9-2 is connected with one guide interface 10, the other end of each of the two air supply pipelines 9-2 is communicated with the upper shell 1, and one end of each air supply pipeline 9-2 communicated with the guide interface 10 is provided with the corresponding air supply pipeline through the piston type plug 11-2 And the side wall of the inner joint 11 is also provided with a first vent hole 11-1. The utility model discloses a set up two direction interfaces on giving vent to anger the connector, when one of them direction interface took place to block up, can continue to supply air through another direction interface, played the effect that increases its practical performance.

As shown in fig. 2, an outer joint 12 is movably connected to an outer side of one of the two inner joints 11, one end of the outer joint 12 extends into the guide interface 10 and is connected to a piston type plug 11-2, a second vent hole 12-2 is formed in an upper outer wall of the outer joint 12, the second vent hole 12-2 faces the first vent hole 11-1, the piston type plug 11-2 presses a first spring 19 through the inner joint 11 under the action of the outer joint 12, so that the air supply pipeline 9-2 faces the second vent hole 12-2, the air supply pipeline 9-2 is communicated with the first vent hole 11-1 through the second vent hole 12-2, and an air supply pipe 14 is connected to the other end of the outer joint 12.

As shown in fig. 2, the air outlet joints 9 at the outer sides of the two guide interfaces 10 are respectively provided with a circular connecting end 9-1, the circular connecting end 9-1 is connected with a nut cover 13, the outer wall of the circular connecting end 9-1 is provided with an external thread matched with the nut cover 13, the external joint 12 passes through the nut cover 13, the outer wall of the external joint 12 is provided with a limiting seat 12-1, and the limiting seat 12-1 is in contact with the inner wall of the nut cover 13.

The horizontal distance from the right end face of the piston type plug 11-2 to the first vent hole 11-1 is the same as the horizontal distance from the left end of the outer joint 12 to the second vent hole 12-2.

As shown in fig. 2 and 3, a positioning mechanism is arranged between the outer joint 12 and the guide interface 10, the positioning mechanism includes a connection hole 15 formed in the inner wall of the guide interface 10, a hemispherical clamping groove 16 formed in the outer wall of the outer joint 12, a spherical clamping head 18 and a second spring 17, the spherical clamping head 18 is connected in the connection hole 15 through the second spring 17, the spherical clamping head 18 is clamped into the hemispherical clamping groove 16 under the action of the second spring 17, and when the spherical clamping head 18 is clamped into the hemispherical clamping groove 16, one end of the air supply pipeline 9-2 communicated with the guide interface 10 faces the second air through hole 12-2.

As shown in figure 1, the upper end of a lower shell 2-2 is provided with a guide groove 2-2-1, the lower end of an extension shell 2-1 is movably connected in the guide groove 2-2-1, the lower end of the extension shell 2-1 is in clearance fit with the guide groove 2-2-1, the side wall of the upper end of the lower shell 2-2 is also provided with a tightening threaded hole, the tightening threaded hole is internally connected with a tightening bolt 2-3, and the tightening bolt 2-3 penetrates through the tightening threaded hole to be connected with the extension shell 2-1. The design has the advantages of simple structure, easy manufacture, practicality and high efficiency.

Claims

1. A gas meter shell is characterized in that: comprises that

A shell which is composed of an upper shell (1), a lower shell (2-2) and an extension shell (2-1) arranged between the upper shell (1) and the lower shell (2-2),

the device comprises a U-shaped fixed seat (7), wherein first connecting seats (4) are arranged on two sides of the lower end of an upper shell (1), second connecting seats (5) are arranged on two sides of the upper end of an extension shell (2-1), the first connecting seats (4) and the second connecting seats (5) are fixed in the U-shaped fixed seat (7), the U-shaped fixed seat (7) is connected with the first connecting seats (4) and the second connecting seats (5) through bolts (8), rubber sealing gaskets (6) are arranged between the U-shaped fixed seat (7) and the first connecting seats (4) and between the U-shaped fixed seat (7) and the second connecting seats (5),

the air inlet joint (3), the air inlet joint (3) is arranged at the top of the upper shell (1),

the air outlet joint (9), the air outlet joint (9) is arranged on the side wall of the upper shell (1), the air outlet joint (9) is provided with two guide interfaces (10), an inner joint (11) is respectively arranged in the two guide interfaces (10), the inner joint (11) is connected in the guide interfaces (10) through a first spring (19), the outer wall of the inner joint (11) is sleeved with a piston type plug (11-2), the piston type plug (11-2) is movably connected in the guide interfaces (10) along with the inner joint (11), the piston type plug (11-2) is in clearance fit with the inner wall of the guide interfaces (10), the air outlet joint (9) is also internally provided with two air supply pipelines (9-2), one end of each of the two air supply pipelines (9-2) is connected with one guide interface (10), the other ends of the two air supply pipelines (9-2) are communicated with the upper shell (1), one end of each air supply pipeline (9-2) communicated with the guide interface (10) is sealed through a piston type plug (11-2), and the side wall of the inner joint (11) is further provided with a first vent hole (11-1).

2. The gas meter housing of claim 1, wherein: the outer side of one of the two inner joints (11) is movably connected with an outer joint (12), one end of the external joint (12) extends into the guide interface (10) and is connected with the piston type plug (11-2), a second vent hole (12-2) is arranged on the upper outer wall of the outer joint (12), the second vent hole (12-2) is opposite to the first vent hole (11-1), the piston type plug (11-2) presses the first spring (19) through the inner joint (11) under the action of the outer joint (12) to enable the air supply pipeline (9-2) to be opposite to the second vent hole (12-2), the air supply pipeline (9-2) is communicated with the first vent hole (11-1) through a second vent hole (12-2), and the other end of the outer joint (12) is connected with an air supply pipe (14).

3. The gas meter housing of claim 2, wherein: the air outlet connector (9) at the outer sides of the two guide interfaces (10) is respectively provided with a circular connecting end (9-1), the circular connecting end (9-1) is connected with a nut cover (13), the outer wall of the circular connecting end (9-1) is provided with an external thread matched with the nut cover (13), the external connector (12) penetrates through the nut cover (13), the outer wall of the external connector (12) is provided with a limiting seat (12-1), and the limiting seat (12-1) is in contact with the inner wall of the nut cover (13).

4. The gas meter housing of claim 2, wherein: the horizontal distance from the right end face of the piston type plug (11-2) to the first vent hole (11-1) is the same as the horizontal distance from the left end of the outer joint (12) to the second vent hole (12-2).

5. The gas meter housing of claim 2, wherein: external joint (12) and direction interface (10) between be provided with positioning mechanism, positioning mechanism including offer connecting hole (15) on direction interface (10) inner wall, offer hemisphere draw-in groove (16), spherical dop (18) and second spring (17) on external joint (12) outer wall, spherical dop (18) connect in connecting hole (15) through second spring (17), spherical dop (18) block into hemisphere draw-in groove (16) under the effect of second spring (17) in, when hemisphere draw-in groove (16) is gone into in spherical dop (18), the one end of air supply line (9-2) and direction interface (10) intercommunication is just facing second ventilation hole (12-2).

6. The gas meter housing of claim 1, wherein: the upper end of the lower shell (2-2) is provided with a guide groove (2-2-1), the lower end of the extension shell (2-1) is movably connected into the guide groove (2-2-1), the lower end of the extension shell (2-1) is in clearance fit with the guide groove (2-2-1), the side wall of the upper end of the lower shell (2-2) is further provided with a tightening threaded hole, a tightening bolt (2-3) is connected into the tightening threaded hole, and the tightening bolt (2-3) penetrates through the tightening threaded hole to be connected with the extension shell (2-1).