Non-damage riveted gas meter shell

Abstract

The utility model relates to the technical field of metering instruments, in particular to a nondestructive riveted gas meter shell. A pipeline connector is formed in the shell, a pipeline quick connector is riveted to the pipeline connector, positioning teeth and fixing teeth are arranged at the position, inserted into the shell, of the pipeline quick connector, the positioning teeth are of a vertical structure, and the fixing teeth are of a bent structure. The fixing teeth abut against the inner opening edge of the pipeline connector. According to the utility model, the pipeline quick connector is designed at the pipeline interface of the gas meter, so that the pipeline can be directly sleeved on the pipeline quick connector conveniently and quickly without disassembling the shell. Meanwhile, the design that the positioning teeth and the fixing teeth on the pipeline quick connector are matched with the reinforcing pieces can enhance the strength of a pipeline opening, and damage is prevented from being generated during external force sleeving.

Description

Technical Field

[0001] The utility model relates to the field of structural design of gas meters and related equipment, in particular to a new non-destructive temporary riveting method between a gas meter pipeline interface and a meter body. Background Art

[0002] Gas meters are instruments used to measure gas flow and are widely used in piped gas systems for households and industrial users. When designing and manufacturing traditional gas meters, metal pipes or quick connectors need to be permanently riveted or welded to the meter body to achieve a reliable sealed connection. For example, a built-in explosion-proof stepper motor valve diaphragm gas meter disclosed in Chinese patent CN210981406U requires a firm connection between the air inlet and the explosion-proof stepper motor valve inside the meter body.

[0003] However, this conventional riveting or welding method has some obvious defects: on the one hand, the manufacturing process is complicated and the cost is high; on the other hand, once it needs to be disassembled for maintenance after installation, the original riveted or welded parts will not be able to be restored to their original state, which will affect the sealing performance and service life. This makes it difficult to replace key components or relocate long-term instrument products such as gas meters.

[0004] In order to solve the above technical problems, a new non-destructive temporary riveting solution is urgently needed, which can achieve reliable connection between the gas meter pipe joint and the meter body, while avoiding permanent damage to the interface, ensuring the convenience of disassembly and assembly and the service life, thereby significantly improving the overall performance and reliability of the gas meter.

[0005] The damage-free riveted gas meter housing disclosed in the embodiment of the present invention is a beneficial improvement and innovative design made in response to the urgent needs in the field of gas meters. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the utility model provides a gas meter housing with simple structure, quick and convenient pipeline connection and no need for disassembly, and non-damaging riveting. In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A gas meter shell with damage-free riveting, a pipeline interface is provided on the shell, a pipeline quick connector is riveted at the pipeline interface, the pipeline quick connector is inserted into the shell and is provided with positioning teeth and fixing teeth, the positioning teeth are vertical structures, the fixing teeth are bent structures, and the fixing teeth press against the inner edge of the pipeline interface.

[0008] On the basis of adopting the above technical solution, the utility model can also adopt the following further technical solution:

[0009] When the number of the positioning teeth and the number of the fixing teeth are both greater than two, the positioning teeth and the fixing teeth are spaced apart from each other.

[0010] A first limiting ring is provided at the inner edge of the pipe interface, the first limiting ring protrudes into the shell, and the first limiting ring is provided with a first limiting notch, and the fixed tooth top is pressed on the first limiting notch.

[0011] The number of the first limiting notches is the same as that of the fixing teeth, and the width of the first limiting notches is not less than the width of the fixing teeth.

[0012] The shell is also provided with a reinforcing sheet on one side where the pipe interface is opened. The reinforcing sheet is provided with a second limiting ring at the pipe interface. The second limiting ring surrounds the first limiting ring therein, and the second limiting ring protrudes into the shell.

[0013] The second limiting ring is provided with a second limiting notch, the fixed tooth top is pressed on the second limiting notch, the number of the second limiting notches is the same as the number of the first limiting notches, and the width of the second limiting notch is not less than the width of the first limiting notch.

[0014] The peripheral edge of the reinforcement sheet is provided with a flange protruding into the shell body.

[0015] A reinforcement ring protruding into the shell body is provided at the center of the reinforcement sheet.

[0016] An outwardly protruding clamping ring is provided at an upper position in the middle of the pipeline quick connector, and the clamping ring and the outer edge of the pipeline interface are pressed against each other.

[0017] The clamping ring is provided with an annular groove on one side close to the pipeline interface.

[0018] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0019] The utility model designs a pipeline quick connector at the pipeline interface of the gas meter, so that the pipeline can be directly sleeved on the pipeline quick connector, which is convenient and quick without disassembling the housing. At the same time, the positioning teeth and fixing teeth on the pipeline quick connector cooperate with the design of the reinforcement plate to enhance the strength of the pipeline opening and prevent damage when sleeved by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a gas meter shell with non-damage riveting.

[0021] Figure 2 The utility model is a top view of a gas meter housing with non-damage riveting.

[0022] Figure 3 The utility model is a shell structure schematic diagram of a gas meter shell with non-damage riveting.

[0023] Figure 4 The utility model is a schematic diagram of a pipeline quick connector structure of a gas meter shell that is riveted without damage.

[0024] Figure 5 The utility model is a schematic diagram of a reinforcing plate structure of a gas meter shell that is riveted without damage.

[0025] Among them, the shell 1, the pipe interface 11, the first limiting ring 12, the first limiting notch 13, the pipe quick connector 2, the positioning teeth 21, the fixing teeth 22, the clamping ring 23, the annular groove 24, the reinforcing plate 3, the second limiting ring 31, the second limiting notch 32, the flange 33, and the reinforcing ring 34. DETAILED DESCRIPTION

[0026] In conjunction with the accompanying drawings, a gas meter pressure resistance deformation detection device provided by the utility model is further described.

[0027] Embodiment 1, see attached Figure 1-5 The structural schematic diagram discloses a non-destructive riveting method for reliably fixing the pipeline quick connector 2 to the pipeline interface 11 of the gas meter housing 1.

[0028] The basic principle of this non-destructive riveting method is: first insert the pipe quick connector 2 from the pipe interface 11 of the housing 1, so that the positioning teeth 21 and the fixing teeth 22 inside it respectively abut against the inner wall of the interface 11. Among them, the vertical structure of the positioning teeth 21 plays the role of alignment and limiting; and the bent structure of the fixing teeth 22 presses on the inner edge of the interface 11, playing the role of locking and fixing the quick connector 2.

[0029] Furthermore, the geometric dimensions of the fixing teeth 22 and the matching tolerance with the inner diameter of the interface 11 can be specifically designed and optimized. In this way, on the one hand, the pressing force of the fixing teeth 22 on the interface 11 can be large enough to achieve the purpose of reliably fixing the quick connector 2; on the other hand, since it is pressing rather than snapping, damage to the interface 11 is also avoided.

[0030] Very good, the additional information you provided is very helpful to improve the description of this embodiment. Based on the new content, I will expand and improve it again:

[0031] In some specific application scenarios, in order to further enhance the reliability of positioning and fixing, the number of positioning teeth 21 and fixing teeth 22 can be set to be greater than two, and they are evenly spaced. In this embodiment, there are eight positioning teeth 21 and eight fixing teeth 22, which are alternately spaced and arranged in the circumferential direction of the quick connector 2.

[0032] In addition, in order to further strengthen the locking effect of the fixing teeth 22, a first limiting ring 12 is specially provided at the inner edge of the pipe interface 11 of the housing 1. The first limiting ring 12 protrudes toward the inner side of the housing 1 and has a plurality of first limiting notches 13 formed in its circumferential direction. When the quick connector 2 is fully inserted, the fixing teeth 22 are just stuck at the concave position of the first limiting notches 13, so that the position of the quick connector 2 is doubly limited and fixed.

[0033] This design of increasing the number of positioning teeth and fixing teeth and cooperating with the limiting ring structure makes the positioning and locking of the quick connector 2 more accurate and stable, and the whole damage-free riveting effect is greatly enhanced, which is especially suitable for some working conditions with large vibration influence and harsh use environment. At the same time, since it is still based on the top pressure principle, the pipe interface 11 itself will not be permanently damaged.

[0034] It is worth mentioning that the number, size and distribution position of the first limiting notches 13 can be designed in a targeted manner according to the specific parameters of the fixed teeth 22 to obtain the best limiting engagement effect.

[0035] Regarding the specific configuration of the first limiting notch 13, the number thereof is the same as the number of the fixed teeth 22, which is eight, and the width of the first limiting notch 13 is not less than the width of the fixed teeth 22. This one-to-one corresponding design enables the fixed teeth 22 to be more accurately engaged in the notch 13 and avoid skewing, thereby firmly fixing the quick connector 2 in an ideal position.

[0036] In addition, in order to further enhance the structural rigidity of the pipe interface 11 and the first limiting ring 12, the housing 1 is also provided with a reinforcing sheet 3 on the side where the pipe interface 11 is provided. The reinforcing sheet 3 is also provided with a second limiting ring 31, which surrounds and encloses the first limiting ring 12, and the second limiting ring 31 also protrudes toward the inner side of the housing 1.

[0037] The provision of the reinforcing sheet 3 provides sufficient rigid support to the pipe interface 11 and its internal structural area, thereby avoiding instability or deformation caused by factors such as vibration and impact during long-term use. The presence of the second limiting ring 31 further provides "double insurance" for the limiting effect of the first limiting ring 12, greatly enhancing the reliability of the entire non-damaging riveting from a structural perspective.

[0038] Of course, details such as the connection method between the reinforcing plate 3 and the shell 1, the specific shape and size of the second limiting ring 31, etc. can also be flexibly designed according to different actual usage requirements.

[0039] In order to further enhance the locking effect of the fixed teeth 22, the second limiting ring 31 is also provided with a plurality of second limiting notches 32 on its circumference, and the fixed teeth 22 are directly pressed against these notches 32. The number of the second limiting notches 32 is the same as the number of the first limiting notches 13, both being eight. Moreover, the width of the second limiting notches 32 is not less than the width of the first limiting notches 13, so as to ensure that the fixed teeth 22 can be fully inserted.

[0040] In this way, the fixing tooth 22 is restrained by the first limiting notch 13 and the second limiting notch 32 in the radial direction, so that the quick connector 2 is fixed more securely.

[0041] In order to further enhance the structural rigidity of the reinforcing sheet 3, a flange 33 protruding toward the inner side of the housing 1 is specially provided at the periphery thereof, and a reinforcing ring 34 protruding inward is also provided at the center. The two-part structural design enables the reinforcing sheet 3 to obtain sufficient strength support as a whole, and will not become unstable or deformed during long-term use.

[0042] On the other hand, in order to further enhance the fixing reliability of the quick connector 2, an outwardly protruding collar 23 is provided at the upper middle position thereof, and the collar 23 is pressed against the outer edge of the pipe interface 11. The pressing force generated by the collar 23 plays a role in radial positioning and preventing the quick connector 2 from falling off.

[0043] In addition, the clamp ring 23 is specially provided with an annular groove 24 on one side close to the pipe interface 11. This design has the following effects in practical applications: on the one hand, the existence of the annular groove 24 reduces the top pressure area, reduces the friction resistance, and facilitates the disassembly and assembly of the quick connector 2; on the other hand, the groove 24 also provides a reserved space for the use of some auxiliary fasteners (such as clamps, retaining rings, etc.).

[0044] Through the above series of innovative structural designs, the damage-free riveting method of this embodiment has been optimized to a great extent, with accurate positioning, reliable fixation, convenient operation, and excellent long-term performance, which fully meets the urgent needs of gas meter and other instrument products.

[0045] The present invention has been illustrated and described with reference to the preferred embodiments. However, it will be understood by those skilled in the art that various changes in form and details may be made within the scope of the claims.

Claims

1. A gas meter housing with non-damaging riveting, characterized in that The shell body is provided with a pipe interface, a pipe quick connector is riveted at the pipe interface, and the pipe quick connector is inserted into the shell body and is provided with positioning teeth and fixing teeth, the positioning teeth are vertical structures, and the fixing teeth are bent structures, and the fixing teeth press against the inner edge of the pipe interface.

2. The damage-free riveted gas meter housing according to claim 1, characterized in that When the number of the positioning teeth and the number of the fixing teeth are both greater than two, the positioning teeth and the fixing teeth are spaced apart from each other.

3. The damage-free riveted gas meter housing according to claim 1, characterized in that A first limiting ring is provided at the inner edge of the pipe interface, the first limiting ring protrudes into the shell, and the first limiting ring is provided with a first limiting notch, and the fixed tooth top is pressed on the first limiting notch.

4. The damage-free riveted gas meter housing according to claim 3, characterized in that The number of the first limiting notches is the same as that of the fixing teeth, and the width of the first limiting notches is not less than the width of the fixing teeth.

5. The damage-free riveted gas meter housing according to claim 3, characterized in that The shell is also provided with a reinforcing sheet on one side where the pipe interface is opened. The reinforcing sheet is provided with a second limiting ring at the pipe interface. The second limiting ring surrounds the first limiting ring therein, and the second limiting ring protrudes into the shell.

6. The damage-free riveted gas meter housing according to claim 5, characterized in that The second limiting ring is provided with a second limiting notch, the fixed tooth top is pressed on the second limiting notch, the number of the second limiting notches is the same as the number of the first limiting notches, and the width of the second limiting notch is not less than the width of the first limiting notch.

7. The damage-free riveted gas meter housing according to claim 5, characterized in that The peripheral edge of the reinforcement sheet is provided with a flange protruding into the shell body.

8. The damage-free riveted gas meter housing according to claim 5, characterized in that A reinforcement ring protruding into the shell body is provided at the center of the reinforcement sheet.

9. The damage-free riveted gas meter housing according to claim 1, characterized in that An outwardly protruding clamping ring is provided at an upper position in the middle of the pipeline quick connector, and the clamping ring and the outer edge of the pipeline interface are pressed against each other.

10. The damage-free riveted gas meter housing according to claim 9, characterized in that The clamping ring is provided with an annular groove on one side close to the pipeline interface.

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