Motor valve quick-mounting structure of gas meter

Abstract

The utility model relates to the technical field of metering instruments, in particular to a motor valve quick-mounting structure of a gas meter. A motor valve fast-assembly structure of a gas meter is characterized in that the fast-assembly structure is arranged in a shell of the gas meter, a pipeline connector is formed in the shell, a fixing ring is arranged at the position of the pipeline connector, a motor valve is fixed in the shell and connected to the fixing ring in a clamped mode through a fast-assembly base, a first clamping block is arranged on the fixing ring, and a second clamping block is arranged on the first clamping block. The quick mounting seat is provided with a clamping head, the clamping head is provided with a first clamping cavity, and the first clamping block is clamped in the first clamping cavity so that the quick mounting seat and the fixing ring can be mutually clamped and fixed. According to the utility model, the motor valve and the shell of the gas meter are quickly assembled and disassembled by designing the quick assembly seat, the motor valve can be directly clamped in the gas meter by combining with the design of the fixing ring, and the motor valve is convenient to assemble and disassemble and high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of metering instruments, in particular to a motor valve quick-installation structure of a gas meter. Background Art

[0002] Gas meters are instruments used to measure gas flow and are widely used in civil and industrial fields. With the continuous clean energy consumption in people's daily lives, pipeline gas such as natural gas and natural gas has gradually replaced traditional fuels such as firewood and coal, becoming the main source of fuel for life and industry. Gas meters can automatically accumulate and count gas usage and provide users with accurate billing basis, so they play an important role in the field of gas metering.

[0003] In the prior art, for example, Chinese patent CN 206609478U discloses a technical solution for an ultrasonic gas meter with a built-in stepper motor valve. The gas meter includes an ultrasonic gas meter base, and a stepper motor valve is mounted on the inlet meter joint or the outlet meter joint. The stepper motor valve is composed of a permanent magnet stepper motor, a custom-made non-standard trapezoidal thread motor shaft, a guide frame, a nut, a flat washer, a support spring, and a rubber valve cap. The permanent magnet stepper motor drives the nut to perform linear reciprocating motion through the non-standard trapezoidal thread motor shaft, thereby driving the valve cap to open and close, thereby achieving control of the airflow.

[0004] The above-mentioned existing technical solution directly drives the valve cap through a permanent magnet stepper motor, which can achieve the requirements of high torque and low speed without a reducer, but the installation method of the motor valve is relatively complicated and cumbersome, and there are many installation and debugging procedures, which affects production efficiency. On the other hand, the reliability of the connection method between the motor valve and the gas meter base in the existing solution needs to be further improved, and there is a certain risk of vibration loosening and displacement.

[0005] Therefore, it is necessary to design a connection method between the motor valve and the gas meter base that is easy to install and disassemble quickly and has a compact and reliable structure, so as to further improve production efficiency, reliability and consistency and meet the development needs of modern gas meters. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the utility model provides a motor valve quick-install structure of a gas meter with a simple structure and can be quickly disassembled and assembled. In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A quick-install structure for a motor valve of a gas meter, the quick-install structure is arranged in a shell of the gas meter, a pipeline interface is provided on the shell, a fixing ring is provided at the pipeline interface, a motor valve is fixed in the shell, the motor valve is connected to the fixing ring through a quick-install seat, a first clamping block is provided on the fixing ring, the quick-install seat is provided with a clamping joint, the clamping joint has a first clamping cavity, the first clamping block is clamped in the first clamping cavity to clamp and fix the quick-install seat and the fixing ring to each other.

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

[0009] The fixing ring is provided with two first clamping blocks, and positioning blocks are respectively provided on both sides of each first clamping block. The ends of the positioning blocks are arc-shaped, and a gap is left between each positioning block and the first clamping block to form a positioning cavity.

[0010] The clamping joint includes a clamping plate connected to the quick-release seat and a clamping portion forming a folding structure with the clamping plate. The first clamping cavity is opened at the clamping portion, and a clamping strip folded toward the quick-release seat is further provided below the clamping portion.

[0011] A reinforcing plate is also provided between the clamping plate and the quick-release seat, and the side of the quick-release seat, the clamping plate and the reinforcing plate form a triangular structure.

[0012] The upper part of the quick-install seat is provided with a second clamping block, the lower part of the motor valve is provided with a second clamping cavity, and the second clamping block is clamped in the second clamping cavity to clamp and fix the motor valve and the quick-install seat.

[0013] The upper surface of the second clamping block is a first inclined surface, and one side of the second clamping cavity is provided with a second inclined surface.

[0014] The pipe interface is provided with a flange protruding into the shell, and the fixing ring is clamped on the outer side of the flange.

[0015] A pipe joint is clamped on the inner side of the flange, and the pipe joint is provided with a limit retaining ring. The limit retaining ring is pressed against the outer edge of the pipe interface, and a convex ring is provided at the place where the pipe joint and the flange of the pipe interface abut against each other.

[0016] A fin is arranged on the side of the lower part of the clamping seat.

[0017] The quick-connect seat is hollow and has a cavity on the side.

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

[0019] The utility model realizes the rapid disassembly and assembly of the motor valve and the gas meter housing by designing a quick-install seat, and combined with the design of the fixing ring, the motor valve can be directly clamped in the gas meter, which is convenient for disassembly and assembly and has high stability. At the same time, combined with the design of the fins and the reinforcing plate on the quick-install seat, the firmness of the quick-install seat can be comprehensively improved, and the firmness and durability of the motor valve installation can be increased under the premise of ensuring rapid installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a motor valve quick-installation structure of a gas meter.

[0021] Figure 2 The utility model is a schematic diagram of the shell structure of the motor valve quick-install structure of a gas meter.

[0022] Figure 3 The utility model is a schematic diagram of a fixing ring structure of a motor valve quick-install structure of a gas meter.

[0023] Figure 4 The utility model is a schematic diagram of a quick-installation seat and a motor valve structure of a motor valve quick-installation structure of a gas meter.

[0024] Figure 5 The utility model is a schematic diagram of a pipeline joint structure of a motor valve quick-install structure of a gas meter.

[0025] Among them, the shell 1, the pipe interface 11, the flange 12, the fixing ring 2, the first clamping block 21, the positioning block 22, the positioning cavity 23, the motor valve 3, the second clamping cavity 31, the second inclined surface 32, the quick-release seat 4, the first clamping cavity 41, the clamping plate 42, the clamping part 43, the clamping strip 44, the reinforcing plate 45, the second clamping block 46, the first inclined surface 47, the fin 48, the cavity 49, the pipe joint 5, the limit retaining ring 51, and the convex ring 52. DETAILED DESCRIPTION

[0026] In conjunction with the accompanying drawings, the motor valve quick-installation structure of a gas meter provided by the utility model is further described.

[0027] like Figure 1-5 As shown, a quick-installation structure of a motor valve of a gas meter is provided in a housing 1 of the gas meter. A pipeline interface 11 is provided on the housing 1, and a fixing ring 2 is provided at the pipeline interface 11. The fixing ring 2 can be made of metal or high-strength engineering plastics and is firmly installed on the housing 1 by bolts, welding, etc. A motor valve 3 is fixed in the housing 1, and the motor valve 3 is an actuator for controlling the opening and closing of a valve in a conventional gas meter. The motor valve 3 is clamped on the fixing ring 2 by a quick-installation seat 4, so as to realize convenient disassembly and assembly.

[0028] Among them, a plurality of first clamping blocks 21 are evenly distributed on the inner side wall of the fixing ring 2, and the first clamping blocks 21 can adopt a convex structure of a rectangular, triangular or other shape. A first clamping cavity 41 matching with the first clamping block 21 is opened on the outer peripheral surface of the quick-install seat 4, and the size and number of the first clamping cavity 41 match the first clamping block 21. During installation, the quick-install seat 4 of the motor valve 3 is aligned with the opening of the fixing ring 2, and the first clamping block 21 is inserted into the first clamping cavity 41, and the quick-install seat 4 and the fixing ring 2 are detachably connected by mutual clamping.

[0029] The quick-install structure is cleverly designed and is extremely convenient to install and disassemble. It only requires the quick-install seat 4 to be easily snapped or separated from the fixing ring 2, avoiding complex steps such as traditional threaded connections, greatly saving time and workload for maintenance and replacement. At the same time, the snap-on structure is reliably fastened, which can effectively prevent the motor valve 3 from shifting during use, ensuring control accuracy.

[0030] In some embodiments, two first clamping blocks 21 are provided at equal intervals on the inner side wall of the fixing ring 2, and positioning blocks 22 are provided on both sides of each first clamping block 21. The ends of the positioning blocks 22 are arc-shaped structures, and this design helps to guide and locate the installation position of the quick-install seat 4. A certain gap is left between each positioning block 22 and the adjacent first clamping block 21, forming a positioning cavity 23 of a certain size.

[0031] The function of the positioning cavity 23 is that when the quick-release seat 4 is installed on the fixing ring 2, the positioning protrusion 42 on the quick-release seat 4 can be accurately snapped into the positioning cavity 23, thereby playing a role in positioning, so that the quick-release seat 4 can be accurately snapped into the ideal installation position of the fixing ring 2 to avoid position deviation.

[0032] The size and number of the positioning protrusions 42 match the positioning cavity 23. The positioning protrusions 42 are evenly distributed on the outer circumference of the quick-install seat 4. When the quick-install seat 4 is correctly aligned and inserted into the opening of the fixing ring 2, the positioning protrusions 42 are automatically inserted into the positioning cavity 23 and locked therein, ensuring accurate positioning and locking of the quick-install seat 4.

[0033] The design of this positioning structure enables the quick-release seat 4 to be accurately positioned in both the radial and circumferential directions, making the clamping more reliable and firm, greatly improving the assembly accuracy and repeated positioning accuracy, effectively avoiding the hidden dangers of failure caused by installation position deviation, and ensuring the normal operation of the motor valve 3.

[0034] In some embodiments, the clamping joint on the quick-release seat 4 includes a clamping plate 42 connected to the main body of the quick-release seat 4, a clamping portion 43 forming a folded structure with the clamping plate 42, and a clamping strip 44 located below the clamping portion 43 and folded toward one side of the main body of the quick-release seat 4.

[0035] The first clamping cavity 41 is provided on the inner side of the clamping portion 43, and is used to insert the first clamping block 21 on the fixing ring 2 and realize clamping. The structure of the clamping portion 43 is designed as a zigzag folding structure, one end of which is connected to the clamping plate 42, and the other end is folded into a clamping strip 44.

[0036] The function of the clamping strip 44 is to further enhance the clamping strength and reliability of the quick-fitting seat 4 and the fixing ring 2. When the first clamping block 21 is inserted into the first clamping cavity 41 and the quick-fitting seat 4 is clamped to the fixing ring 2, the end of the clamping strip 44 will abut against the inner wall of the fixing ring 2, and the clamping strip 44 will be pressed inward under the squeezing action of the first clamping block 21, so that the clamping strip 44 and the inner wall of the fixing ring 2 generate sufficient friction and bite force, further enhancing the connection rigidity and anti-pull-off force of the entire clamping structure.

[0037] The folding clamping structure is cleverly designed, and utilizes the synergistic effect of the first clamping block 21, the first clamping cavity 41 and the clamping strip 44 to achieve dual reliable clamping of the quick-mount seat 4 in the radial and axial directions, greatly improving the connection strength and stability of the entire quick-mounting structure, and ensuring the safe and reliable operation of the motor valve 3 during long-term operation.

[0038] In some embodiments, a reinforcing plate 45 is further provided between the clamping plate 42 and the main body of the quick-release seat 4 to enhance the connection strength between the clamping plate 42 and the main body of the quick-release seat 4.

[0039] The reinforcing plate 45 adopts a plate-like structure, one end of which is fixedly connected to the clamping plate 42, and the other end of which is fixedly connected to the main body of the quick-install seat 4. The side surface of the main body of the quick-install seat 4, the clamping plate 42 and the reinforcing plate 45 form a triangular reinforcing structure.

[0040] This triangular reinforcement structure utilizes the excellent mechanical properties of the triangle, so that the card connector can form an integral rigid connection structure with the quick-release seat 4 body, thereby greatly improving the connection strength and anti-twisting ability between the entire card connector and the quick-release seat 4 body.

[0041] At the same time, the provision of the reinforcing plate 45 also serves to provide support for the card connector, thereby preventing the card connector from being deformed due to excessive force when the first card block 21 is inserted, ensuring the dimensional accuracy of the first card cavity 41, and enabling the first card block 21 to be accurately inserted, thereby improving the reliability of the entire assembly.

[0042] The design of the triangular reinforcement structure not only enhances the connection strength between the card connector and the quick-release seat 4, but also improves the dimensional accuracy and assembly reliability during card connection. It is an effective optimization solution that ensures the firmness and reliability of the entire quick-release structure.

[0043] In some embodiments, a second clamping block 46 is provided on the upper portion of the quick-release seat 4. The second clamping block 46 can adopt a convex structure such as a rectangle or a triangle similar to the first clamping block 21.

[0044] A second engaging cavity 31 cooperating with the second engaging block 46 is provided at the lower part of the motor valve 3 , and the size, shape and number of the second engaging cavity 31 match those of the second engaging block 46 .

[0045] When the motor valve 3 is mounted on the quick-mount seat 4, the motor valve 3 is aligned with the upper opening of the quick-mount seat 4, so that the second clamping block 46 can be accurately inserted into the second clamping cavity 31 and clamped therein, thereby realizing a detachable connection between the motor valve 3 and the quick-mount seat 4.

[0046] The second clamping structure enables the motor valve 3 to be firmly clamped on the quick-release seat 4, preventing the motor valve 3 from being displaced or falling off during operation, thereby ensuring control accuracy. At the same time, this clamping method also facilitates the disassembly, assembly and maintenance of the motor valve 3.

[0047] Through the clamping connection between the first clamping structure on the quick-release seat 4 and the fixing ring 2, and the second clamping structure between the motor valve 3 and the quick-release seat 4, the detachable installation of the entire motor valve 3 in the housing 1 is achieved, which greatly facilitates installation and disassembly and subsequent maintenance, and also ensures the accuracy and reliability of assembly. It is an effective quick-release structural design.

[0048] In some embodiments, the upper surface of the second clamping block 46 on the quick-release seat 4 is a first inclined surface 47, rather than a traditional planar structure.

[0049] Correspondingly, a side wall surface of the second engaging cavity 31 opened at the lower part of the motor valve 3 is also provided with a second inclined surface 32 matched with the first inclined surface 47 .

[0050] When the motor valve 3 is installed into the quick-install seat 4, the first inclined surface 47 first contacts the second inclined surface 32, and under the action of continued force, the second clamping block 46 gradually squeezes into the second clamping cavity 31 and clamps. This inclined surface design allows the second clamping block 46 to be more easily inserted and clamped into the second clamping cavity 31 by virtue of the slope of the inclined surface.

[0051] Compared with the plane clamping, the advantages of this inclined surface clamping structure are:

[0052] The assembly accuracy is improved, and the second clamping block 46 can be smoothly inserted along the inclined surface and automatically find the precise position;

[0053] The insertion force required for assembly is reduced to avoid damage to parts due to excessive force;

[0054] The assembly reliability is improved, and the slope structure enables the second clamping block 46 to be firmly clamped into the cavity;

[0055] The pull-off resistance is enhanced, and the inclined surface design increases the angle between the clamping surface and the pulling force direction, thereby increasing the resistance.

[0056] Therefore, the design of the first inclined surface 47 and the second inclined surface 32 has a positive effect on improving the assembly, reliability and pull-off resistance of the clamping structure between the motor valve 3 and the quick-release seat 4, and is an effective optimization solution.

[0057] In some embodiments, a pipe interface 11 opened on the shell 1 is provided with a flange 12 structure protruding toward the inner side of the shell 1.

[0058] The function of the flange 12 is to provide a reliable fixed installation position for the fixing ring 2. The outer size of the fixing ring 2 is slightly smaller than the inner diameter of the flange 12, so during installation, the fixing ring 2 can be accurately clamped on the outer side of the flange 12, and the raised structure of the flange 12 firmly locks and limits the fixing ring 2.

[0059] This design of fixing and installing the fixing ring 2 by means of the flange 12 avoids defects such as looseness due to vibration and displacement of the installation position that may exist in traditional methods such as welding or bolt connection, thereby greatly improving the fixing reliability and installation accuracy of the fixing ring 2.

[0060] At the same time, the flange 12 structure is close to the pipe interface 11, which enables the fixing ring 2 to be installed nearby, reducing the connection distance from the motor valve 3 to the pipe interface 11, thereby reducing the size of the overall structure, which is conducive to the compact design of the gas meter.

[0061] The flange structure is simple and practical in design, easy and reliable to install, and is an effective solution for reliable connection between the shell and the fixing ring 2. It ensures the assembly quality of the entire quick-install structure, prolongs its service life, and has positive promotion and application value.

[0062] In some embodiments, a pipe connector 5 is clamped on the inner side of the flange 12 for connecting with an external pipeline. The pipe connector 5 is an annular structure, and its outer diameter can be accurately clamped on the inner side of the flange 12.

[0063] The pipe joint 5 is provided with a limit retaining ring 51 protruding outward. When the pipe joint 5 is inserted into the inner side of the flange 12 and clamped, the limit retaining ring 51 presses against the outer edge of the pipe interface 11 to limit the position of the pipe joint 5, so that the pipe joint 5 cannot go deeper, ensuring that the installation position of the pipe joint 5 is accurate and without deviation.

[0064] In addition, a convex ring 52 is provided at the point where the pipe joint 5 and the flange 12 of the pipe interface 11 abut against each other. The existence of the convex ring 52 can, on the one hand, increase the actual contact area between the pipe joint 5 and the flange 12, thereby enhancing the firmness of the clamping connection; on the other hand, the convex structure of the convex ring 52 can also play a role in precise positioning during assembly, thereby further improving the assembly accuracy.

[0065] The design of the limit retaining ring 51 and the convex ring 52 enables the pipe joint 5 to be accurately clamped in the ideal installation position, preventing the pipe joint 5 from being displaced during use, and greatly enhancing the clamping strength between it and the flange 12, thereby ensuring a reliable connection between the pipe joint 5 and the pipeline, avoiding safety hazards such as leakage, and playing an important role in safety protection.

[0066] In some embodiments, a plurality of fins 48 are provided on the lower side of the quick-install seat 4. After the quick-install seat 4 is installed on the fixing ring 2, the ends of the fins 48 will abut against the inner wall of the housing 1, playing a limiting role, preventing the quick-install seat 4 from being displaced in the radial direction, and accurately limiting and positioning the installation position of the quick-install seat 4.

[0067] At the same time, the inner hollow structure of the quick-install seat 4 is also provided with a plurality of ventilation cavities 49 on its side. These cavities 49 can ensure air circulation between the inside of the quick-install seat 4 and the outside atmosphere, avoiding problems such as abnormal pressure caused by a closed cavity, and are also beneficial to heat dissipation inside the quick-install seat 4, thereby extending its service life.

[0068] The design of the fin limit structure and ventilation cavity further improves and optimizes the entire quick-install structure:

[0069] The limiting function of the fin 48 enhances the positioning accuracy of the quick-release seat 4 and prevents the quick-release seat 4 from shifting during use.

[0070] The provision of the ventilation cavity 49 ensures the fluidity between the interior of the quick-release seat 4 and the external environment, thus avoiding the adverse effects of a closed structure.

[0071] The above design makes the entire quick-install structure more accurate and reliable during installation and use, greatly improving the service life and safety performance.

[0072] The overall design concept of the quick-install structure is clear, reasonable, and effective, with extremely high promotion and application value. It is a highly innovative patented technical solution.

[0073] 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.

[0074] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A quick-installation structure for a motor valve of a gas meter, wherein the quick-installation structure is arranged in a housing of the gas meter, and is characterized in that A pipeline interface is provided on the shell, and a fixing ring is provided at the pipeline interface. A motor valve is fixed in the shell, and the motor valve is connected to the fixing ring through a quick-release seat. A first clamping block is provided on the fixing ring, and the quick-release seat is provided with a clamping joint. The clamping joint has a first clamping cavity, and the first clamping block is clamped in the first clamping cavity to clamp and fix the quick-release seat and the fixing ring to each other.

2. The motor valve quick-install structure of the gas meter according to claim 1, characterized in that The fixing ring is provided with two first clamping blocks, and positioning blocks are respectively provided on both sides of each first clamping block. The ends of the positioning blocks are arc-shaped, and a gap is left between each positioning block and the first clamping block to form a positioning cavity.

3. The motor valve quick-install structure of the gas meter according to claim 2, characterized in that The clamping joint includes a clamping plate connected to the quick-release seat and a clamping portion forming a folding structure with the clamping plate. The first clamping cavity is opened at the clamping portion, and a clamping strip folded toward the quick-release seat is further provided below the clamping portion.

4. The motor valve quick-installation structure of the gas meter according to claim 3, characterized in that A reinforcing plate is also provided between the clamping plate and the quick-release seat, and the side of the quick-release seat, the clamping plate and the reinforcing plate form a triangular structure.

5. The motor valve quick-install structure of the gas meter according to claim 1, characterized in that The upper part of the quick-install seat is provided with a second clamping block, the lower part of the motor valve is provided with a second clamping cavity, and the second clamping block is clamped in the second clamping cavity to clamp and fix the motor valve and the quick-install seat.

6. The motor valve quick-install structure of the gas meter according to claim 5, characterized in that The upper surface of the second clamping block is a first inclined surface, and one side of the second clamping cavity is provided with a second inclined surface.

7. The motor valve quick-install structure of the gas meter according to claim 1, characterized in that The pipe interface is provided with a flange protruding into the shell, and the fixing ring is clamped on the outer side of the flange.

8. The motor valve quick-installation structure of the gas meter according to claim 7, characterized in that A pipe joint is clamped on the inner side of the flange, and the pipe joint is provided with a limit retaining ring. The limit retaining ring is pressed against the outer edge of the pipe interface, and a convex ring is provided at the place where the pipe joint and the flange of the pipe interface abut against each other.

9. The motor valve quick-installation structure of the gas meter according to claim 8, characterized in that A fin is arranged on the side of the lower part of the clamping seat.

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