CN209945482U - Gas outlet pipe connecting structure of gas meter - Google Patents
Gas outlet pipe connecting structure of gas meter Download PDFInfo
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- CN209945482U CN209945482U CN201920917665.7U CN201920917665U CN209945482U CN 209945482 U CN209945482 U CN 209945482U CN 201920917665 U CN201920917665 U CN 201920917665U CN 209945482 U CN209945482 U CN 209945482U
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Abstract
The utility model discloses a gas meter outlet duct draw bail has solved the problem that current draw bail is complicated, inconvenient installation, gas tightness are relatively poor, the technical measure who takes: a gas meter outlet pipe connection structure, the outlet pipe has the connection part, the connection part communicates with outlet pipe, the connection part is used for connecting to the outlet port on the core body, characterized by that, there is a cylindrical connection port on the outside of the outlet port on the core body, the connection part is inserted in the connection port, there are sealing elements between connection part and connection port; a clamping structure is arranged between the air outlet pipe and the machine core body.
Description
Technical Field
The utility model relates to a connection structure, in particular to a connection structure for connecting an outlet pipe with a machine core body on a gas meter.
Background
The Chinese utility model patent (patent number: 201220161666.1) discloses a gas flow meter gas outlet channel structure, which solves the problems that the connection between the gas outlet pipe and the core on the existing gas flow meter is inconvenient and the excessive space outside the core is occupied. The technical scheme is as follows: a gas outlet channel structure of a gas flowmeter is positioned in a machine core and a gas outlet pipe and comprises a gas outlet communicated with a distribution chamber in the machine core, and the interior of the gas outlet pipe is communicated with the gas outlet.
In the air outlet channel structure, the inlet part of the air outlet pipe is tightly pressed at the air outlet of the machine core body in a clamping mode. The required clamping structures are relatively more to realize the sealing connection between the air outlet pipe and the air outlet of the machine core body. On the one hand, the structure of the connecting end of the air outlet pipe and the air outlet of the machine core body is relatively complex, so that the manufacture is inconvenient; on the other hand, the plurality of clamping structures realize the connection between the air outlet pipe and the machine core body, the consistent clamping force of each clamping structure on the air outlet pipe cannot be ensured, and the air tightness between the air outlet pipe and the machine core body cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve is: the gas outlet pipe connecting structure of the gas meter has the advantages that the gas outlet pipe and the machine core body are good in connecting stability, and the air tightness between the gas outlet pipe and the machine core body can be effectively guaranteed.
For solving the technical problem, the utility model discloses the technical scheme who takes: a gas meter outlet pipe connection structure, the outlet pipe has the connection part, the connection part communicates with outlet pipe, the connection part is used for connecting to the outlet port on the core body, characterized by that, there is a cylindrical connection port on the outside of the outlet port on the core body, the connection part is inserted in the connection port, there are sealing elements between connection part and connection port; a clamping structure is arranged between the air outlet pipe and the machine core body.
The connecting part and the air outlet pipe are generally integrally formed in an L shape through injection molding. The connecting port is cylindrical, the connecting part is coaxially inserted into the connecting port, and the clamping structures are connected together to realize the connection between the air outlet pipe and the movement body.
Furthermore, the clamping structure comprises a clamping seat integrally formed on the machine core body, a clamping head is integrally formed on the air outlet pipe, and the clamping head is clamped in the clamping seat. The cartridge is generally Jiong shaped and is inserted laterally into the cartridge. The clamping structure is simple, and clamping and dismounting are convenient to realize.
Furthermore, the chuck is positioned at the back side of the air outlet pipe, the front side of the air outlet pipe is provided with a connecting piece, and the connecting piece is connected with the core body through a self-tapping screw. The connecting pieces and the clamping structures are arranged on the two opposite sides of the air outlet pipe, and the connecting ports are combined, so that the position stability of the connecting portions in the connecting ports can be well guaranteed, and the connecting stability between the air outlet pipe and the machine core body is good. And, on the premise of realizing the stable connection between the air outlet pipe and the movement body, the structure is simple.
Further, the clamping seat is positioned at the upper side of the coupling port, and the coupling piece extends towards the lower side of the coupling port. This further simplifies the connection structure between the outlet pipe and the core body, and facilitates the connection and fixation between the outlet pipe and the core body.
Furthermore, a protruding boss is integrally formed on the outer peripheral surface of the inner end of the connecting part, a spigot is formed on the outer side of the inner peripheral surface of the connecting port and used for abutting against the outer end part of the boss, the spigot is positioned on the lower side part of the connecting port, and the upper side part of the connecting port is expanded. This is convenient to insert the coupling part in the coupling hole, and the axial stability of coupling part after inserting in the coupling hole is good, can effectively guarantee outlet duct and movement fastness.
Furthermore, an annular groove is formed on the outer peripheral surface of the boss, and a sealing ring is arranged in the annular groove. The sealing ring is directly arranged on the boss, so that the sealing ring is well suitable for the existence of the boss, and the air tightness between the air outlet pipe and the machine core body is convenient to ensure.
Furthermore, the inner end surface of the connecting port is in a horn shape, and a chamfer surface matched with the horn shape is formed on the inner end surface of the connecting part. This facilitates inserting the coupling portion into the coupling port, and can effectively improve the radial stability between the coupling portion and the coupling port.
Therefore, the utility model has the advantages that: when the gas outlet pipe is connected and fixed with the machine core body, the connecting part is coaxially inserted into the connecting port, and the matching size between the connecting part and the machine core body is relatively large, so that the gas tightness between the gas outlet pipe and the machine core body is ensured, and the gas meter also provides a foundation for the metering accuracy of gas. And the matching size between the connecting part and the connecting port is relatively large, so that the connecting structure between the air outlet pipe and the machine core body can be effectively simplified, and the structures at the corresponding parts of the machine core body and the air outlet pipe can be effectively simplified.
Drawings
Fig. 1 is a top view of a core body with the present coupling structure.
Fig. 2 is a sectional view taken along a-a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 2.
Detailed Description
With the attached drawings, the gas outlet pipe connecting structure of the gas meter is used for realizing the connection and fixation between the gas outlet pipe 2 on the gas meter and the movement body 1. In fig. 2, the outlet duct 2 is shown to be L-shaped, wherein the horizontal portion is a coupling portion 4, which coupling portion 4 is adapted to be coupled to the core body 1. An air outlet is arranged on the machine core body 1, the connecting part 4 is hollow, and the connecting part 4 is communicated with the air outlet pipe 2 and the air outlet.
The core body 1 is recessed inward at the position of the air outlet, so that a hollow coupling port is formed on the core body 1 at the outer side of the air outlet. The coupling opening is cylindrical and the coupling part 4 is coaxially plugged into the coupling opening. A sealing element is arranged between the coupling part 4 and the coupling opening to achieve an air-tight seal. A clamping structure is arranged between the air outlet pipe 2 and the movement body 1 so as to realize the connection between the air outlet pipe 2 and the movement body 1.
The clamping structure comprises a clamping seat 5 integrally formed on the machine core body 1, and the clamping seat 5 is Jiong-shaped. The outlet pipe 2 is integrally formed with a clamping head 6, and the clamping head 6 is clamped in the clamping seat 5. The space in the clamping seat 5 is relatively large, and the clamping head 6 is clamped on the upper side of the clamping seat 5. The chuck 6 is pressed downwards, so that the chuck 6 can be separated from the clamping seat 5. Besides the clamping structure, a connecting structure is arranged between the air outlet pipe 2 and the machine core body 1, and the clamping structure and the connecting structure are respectively arranged on two opposite sides of the air outlet pipe 2 in the inclined direction. Wherein, the dop 6 is located the dorsal part of the outlet duct 2, the hookup structure includes the gusset 3 with the integral molding of outlet duct 2, the gusset 3 is linked with the core body 1 through the tapping screw. The clamping seat 5 is positioned at the upper side of the connecting port, and the connecting piece 3 extends from the intersection position of the air outlet pipe 2 and the connecting part 4 to the lower side of the connecting port.
A protruding boss 7 is integrally formed on the outer peripheral surface of the inner end of the connecting part 4, a spigot 8 is formed on the outer side of the inner peripheral surface of the connecting port, and the spigot 8 is abutted by the outer end of the boss 7. The spigot 8 is positioned on the lower part of the connecting port, and the upper part of the connecting port is expanded. The connecting part 4 is obliquely inserted into the connecting port, and after the connecting part is inserted into the connecting port, the air outlet pipe 2 is pressed downwards, so that the lower side part of the outer end of the boss 7 abuts against the spigot 8. An annular groove 9 is formed on the peripheral surface of the boss 7, and an O-shaped sealing ring is sleeved in the annular groove 9.
The inner end surface of the connecting port is in a horn shape, a chamfer surface matched with the horn shape is formed on the inner end surface of the connecting part 4, and after the connecting part 4 is connected to a position, the inner end surface of the connecting port is attached and fixed with the inner end of the connecting part 4.
Claims (7)
1. A gas meter outlet pipe connection structure, the outlet pipe has the connection part, the connection part communicates with outlet pipe, the connection part is used for connecting to the outlet port on the core body, characterized by that, there is a cylindrical connection port on the outside of the outlet port on the core body, the connection part is inserted in the connection port, there are sealing elements between connection part and connection port; a clamping structure is arranged between the air outlet pipe and the machine core body.
2. The gas meter outlet pipe connecting structure according to claim 1, wherein the clamping structure comprises a clamping seat integrally formed on the machine core body, a clamping head is integrally formed on the outlet pipe, and the clamping head is clamped in the clamping seat.
3. The gas meter outlet pipe coupling structure according to claim 2, wherein the chuck is provided at a back side of the outlet pipe, and a coupling piece is provided at a front side of the outlet pipe, the coupling piece being coupled to the core body by a tapping screw.
4. The gas meter gas outlet pipe connecting structure according to claim 3, wherein the clamping seat is positioned at the upper side of the connecting port, and the connecting piece extends towards the lower side of the connecting port.
5. The gas outlet pipe connecting structure for a gas meter according to any one of claims 1 to 4, wherein a protruding boss is integrally formed on an outer peripheral surface of an inner end of the connecting portion, a spigot is formed on an outer side of an inner peripheral surface of the connecting port, an outer end of the boss abuts against the spigot, the spigot is located on a lower side portion of the connecting port, and an upper side portion of the connecting port is outwardly expanded.
6. The gas meter outlet pipe connecting structure according to claim 5, wherein an annular groove is formed on the outer peripheral surface of the boss, and a seal ring is provided in the annular groove.
7. The gas outlet pipe connecting structure for a gas meter according to claim 5, wherein the inner end surface of the connecting port is formed in a trumpet shape, and a chamfered surface adapted to the trumpet shape is formed on the inner end surface of the connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920917665.7U CN209945482U (en) | 2019-06-18 | 2019-06-18 | Gas outlet pipe connecting structure of gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920917665.7U CN209945482U (en) | 2019-06-18 | 2019-06-18 | Gas outlet pipe connecting structure of gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209945482U true CN209945482U (en) | 2020-01-14 |
Family
ID=69135931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920917665.7U Active CN209945482U (en) | 2019-06-18 | 2019-06-18 | Gas outlet pipe connecting structure of gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209945482U (en) |
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2019
- 2019-06-18 CN CN201920917665.7U patent/CN209945482U/en active Active
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