Gas meter motor valve

Abstract

The utility model provides a gas meter motor valve which comprises a valve body, a machine base, a driver, a positioning disc, a valve element and a transmission rod, a first positioning groove is formed in the valve body, one end of the machine base is arranged in the first positioning groove, a second positioning groove is formed in the inner wall of the end, and the positioning disc is arranged in the second positioning groove. The valve element comprises a sealing part, a telescopic part, a first positioning part and a second positioning part, the first positioning part is clamped between the first positioning groove and the machine base, and the second positioning part is clamped between the inner wall of the valve body and the outer wall of the positioning disc. The valve element is firmly and reliably fixed through the first positioning part and the second positioning part, meanwhile, reliable sealing is formed at the position of the valve body and the machine base, and one end of the machine base is positioned between the inner wall of the first positioning groove and the outer wall of the positioning disc, so that connection between the valve body and the machine base is more stable, and the service life of the valve body is prolonged. And shaking caused by vibration caused by operation of the driver is avoided, so that the reliability of sealing fit between the sealing part and the valve seat part is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a gas meter motor valve. Background Art

[0002] Gas meter motor valve is a device used for gas metering and control. It is usually used in conjunction with a gas meter (gas meter) to achieve accurate metering and safe control of gas flow. The motor valve is driven by an internal motor to open or close the gas flow path, thereby controlling the gas supply.

[0003] Gas meter motor valves are widely used in household, commercial and industrial gas metering systems, especially in situations where remote control or automated management is required. For example, smart gas meter systems often integrate motor valves to facilitate remote meter reading, billing, control and safety monitoring.

[0004] The patent with publication number CN212839426U previously applied by the applicant discloses a gas meter anti-theft motor valve, including a valve body, a valve seat, a sealing cover and a driving motor, the valve body including an air inlet pipe portion and an air outlet pipe portion bent and extended from the air inlet pipe portion, a limit baffle extending along the axial direction of the air outlet pipe portion is arranged at the bending part of the air outlet pipe portion and the air inlet pipe portion, a sealing port opposite to the sealing cover is formed in the limit baffle, a corrugated sleeve is connected between the lower end of the sealing cover and the inner wall of the air outlet pipe portion, the corrugated sleeve is clamped and fixed between the valve body and the valve seat, when the driving motor in the valve seat is working, vibration will be generated, resulting in shaking between the valve seat and the valve body, thereby reducing the sealing reliability between the sealing cover and the sealing port. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a gas meter motor valve.

[0006] The technical solution adopted by the utility model is as follows: the application provides a gas meter motor valve, comprising: a valve body, the valve body is provided with a valve cavity, a first positioning groove and an air inlet and an air outlet connected with the valve cavity, the inner wall of the valve body is provided with a valve seat portion facing the valve cavity, and the valve seat portion is located between the air inlet and the air outlet; a machine base, one end of the machine base is provided in the first positioning groove, and the inner wall of the end is provided with a second positioning groove; a driver, the driver is provided at one end of the machine base away from the second positioning groove; a positioning plate, the positioning plate is provided in the second positioning groove; a valve core, the valve core comprises: a sealing portion , the sealing part is used to form a sealing cooperation with the valve seat part, the sealing part is arranged to move along the axial direction of the valve cavity, and has a closed state in contact with the valve seat part and an open state separated from the valve seat part; a telescopic part, the telescopic part can be telescoped along the axial direction of the valve cavity; a first positioning part, the first positioning part is clamped between the first positioning groove and the machine base, and a second positioning part, the second positioning part is clamped between the inner wall of the valve body and the outer wall of the positioning plate; and a transmission rod, the transmission rod passes through the positioning plate and cooperates with the valve core, and under the drive of the driver, the sealing part switches between the closed state and the open state.

[0007] In some embodiments, a transmission cavity connected to the valve cavity is disposed on the machine base, and the valve core isolates the valve cavity from the transmission cavity.

[0008] In some embodiments, it also includes:

[0009] A connecting sleeve, which is arranged on the sealing part and has a linkage channel;

[0010] And a valve stem nut, wherein the valve stem nut is arranged at one end of the linkage channel away from the sealing portion, one end of the transmission rod is rotatably arranged on the machine base, and the other end thereof is matched with the valve stem nut.

[0011] In some embodiments, a third positioning groove matched with the connecting sleeve is provided on one side of the positioning plate facing the sealing portion.

[0012] In some embodiments, the air inlet is disposed at an end of the valve body away from the first positioning groove, and there are multiple air inlets, which are disposed along the circumferential side wall of the valve body.

[0013] In some embodiments, it also includes:

[0014] a gear driven by a driver;

[0015] and a gear plate, wherein the gear plate is provided with an inner tooth portion meshing with the gear and is connected with the transmission rod.

[0016] In some embodiments, the gear plate is provided with a linkage groove, the circumferential inner wall of the linkage groove is provided with a linkage area, the transmission rod is provided with a linkage plate portion, the linkage plate portion is provided with a mounting hole radially through, a spring is provided in the mounting hole, and both ends of the spring are provided with rolling balls, and under the action of the spring, the rolling balls abut against the linkage area;

[0017] When the valve core moves normally in the axial direction of the valve cavity, the rolling ball abuts against the linkage area so that the linkage disk portion rotates along with the gear disk;

[0018] When the movement of the valve core in the axial direction of the valve chamber is limited and the driver continues to drive, the ball slips in the linkage area so that the gear plate rotates idly.

[0019] In some embodiments, the linkage area includes at least two abutment areas with different inner diameters.

[0020] In some embodiments, the base includes a first shell and a second shell, the second positioning groove is arranged at one end of the second shell, a driving cavity is arranged between the other end of the second shell and the first shell, the driver is arranged in the driving cavity, and the first shell and the second shell are connected by a snap-fit ​​structure.

[0021] In some embodiments, a sealing ring is disposed between the first shell and the second shell.

[0022] The beneficial effects of the utility model are as follows: in the utility model, the valve core is firmly and reliably fixed by the first positioning part and the second positioning part, and a reliable seal is formed at the valve body and the machine base, and one end of the machine base is positioned between the inner wall of the first positioning groove and the outer wall of the positioning plate, so that the connection between the valve body and the machine base is more stable, and will not shake due to the vibration caused by the operation of the driver, thereby ensuring the reliability of the sealing fit between the sealing part and the valve seat part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0024] Figure 1 It is an exploded view of the utility model;

[0025] Figure 2 The utility model is a cross-sectional view Figure 1 ;

[0026] Figure 3 The utility model is a cross-sectional view Figure 2 ;

[0027] Figure 4 It is a schematic diagram of the transmission rod in the utility model;

[0028] Figure 5 Schematic diagram of the gear plate in the utility model Figure 1 ;

[0029] Figure 6 Schematic diagram of the gear plate in the utility model Figure 2 ;

[0030] Figure 7 It is a partial schematic diagram of the utility model. DETAILED DESCRIPTION

[0031] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0032] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0033] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0034] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components.

[0035] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0037] Embodiment 1:

[0038] like Figures 1 to 7 As shown, this embodiment provides a gas meter motor valve, including:

[0039] The valve body 1 is provided with a valve cavity 10, a first positioning groove 11, and an air inlet 12 and an air outlet 13 connected to the valve cavity 10. The inner wall of the valve body 1 is provided with a valve seat portion 14 facing into the valve cavity 10. In the present embodiment, the valve seat portion 14 is formed by the inner wall of the valve body 1 protruding into the valve cavity 10, and is integrally formed with the valve body 1.

[0040] Secondly, the valve seat portion 14 is located between the air inlet 12 and the air outlet 13 . When a seal is formed at the valve seat portion 14 , the air inlet 12 and the air outlet 13 can be separated.

[0041] The base 2 has one end disposed in the first positioning groove 11 , and a second positioning groove 20 is disposed on the inner wall of the end.

[0042] The driver 3 is arranged at one end of the base 2 away from the second positioning groove 20; the driver 3 can be a rotary driver such as a driving motor, a rotary cylinder, etc. according to actual conditions.

[0043] Specifically, Figure 7 As shown, the base 2 includes a first shell 200 and a second shell 201, the second positioning groove 20 is arranged at one end of the second shell 201, a driving cavity 202 is arranged between the other end of the second shell 201 and the first shell 200, and the driver 3 is arranged in the driving cavity 202. The first shell 200 and the second shell 201 are connected by a snap-on structure, which is convenient for disassembly and assembly, and is conducive to the repair and maintenance of the driver 3.

[0044] Furthermore, a sealing ring 203 is provided between the first shell 200 and the second shell 201 . Preferably, an O-ring is used to improve the sealing performance of the driving chamber 202 .

[0045] A positioning plate 4, wherein the positioning plate 4 is disposed in the second positioning groove 20;

[0046] The valve core 5 comprises:

[0047] The sealing portion 50 is used to form a sealing match with the valve seat portion 14. In this embodiment, the sealing portion 50 is a conical surface. When it is pressed against the valve seat portion 14, the formed seal is more reliable. The sealing portion 50 is arranged to move along the axial direction of the valve cavity 10, and has a closed state in contact with the valve seat portion 14 and an open state separated from the valve seat portion 14;

[0048] The telescopic portion 51 can be axially telescopic along the valve cavity 10; the telescopic portion 51 is made of elastic material. In the present embodiment, the cross-section of the telescopic portion 51 is in a continuous step shape. When the sealing portion 50 moves, the telescopic portion 51 will be compressed or stretched accordingly.

[0049] The valve core 5 isolates the valve chamber 10 from the transmission chamber 21 , thereby preventing the medium from entering the transmission chamber 21 .

[0050] A first positioning portion 52, wherein the first positioning portion 52 is clamped between the first positioning groove 11 and the base 2;

[0051] and a second positioning portion 53, wherein the second positioning portion 53 is clamped between the inner wall of the valve body 1 and the outer wall of the positioning plate 4;

[0052] The valve core 5 is firmly and reliably fixed by the first positioning portion 52 and the second positioning portion 53. At the same time, a reliable seal is formed between the valve body 1 and the machine base 2, and one end of the machine base 2 is positioned between the inner wall of the first positioning groove 11 and the outer wall of the positioning plate 4, so that the connection between the valve body 1 and the machine base 2 is more stable and will not shake due to the vibration caused by the operation of the driver, thereby ensuring the reliability of the sealing fit between the sealing portion 50 and the valve seat portion 14.

[0053] And a transmission rod 6, which passes through the positioning plate 4 and cooperates with the valve core 5, and under the drive of the driver 3, the sealing part 50 is switched between the closed state and the open state.

[0054] Furthermore, it also includes:

[0055] A connecting sleeve 7, wherein the connecting sleeve 7 is disposed on the sealing portion 50 and a linkage channel 70 is disposed thereon;

[0056] And a valve stem nut 8, wherein the valve stem nut 8 is arranged at one end of the linkage channel 70 away from the sealing portion 50, one end of the transmission rod 6 is rotatably arranged on the machine base 2, and the other end thereof is matched with the valve stem nut 8.

[0057] Through the above arrangement, when the driver 3 drives the transmission rod 6 to rotate, the valve stem nut 8 is driven to move axially along the valve cavity 10, so that the sealing part 50 moves axially along the valve cavity 10 to realize the opening and closing of the valve.

[0058] Secondly, the third positioning groove 40 adapted to the connecting sleeve 7 is provided on one side of the positioning disc 4 facing the sealing portion 50, so as to ensure the stability of the movement of the connecting sleeve 7, that is, the stability of the movement of the sealing portion 50, thereby improving the reliability of the valve.

[0059] Furthermore, the air inlet 12 is arranged at one end of the valve body 1 away from the first positioning groove 11. There are multiple air inlets 12, and they are arranged along the circumferential side wall of the valve body 1, which can adapt to more working conditions.

[0060] Furthermore, a transmission chamber 21 communicating with the valve chamber 10 is provided on the machine base 2 for installing a transmission assembly between the driver 3 and the transmission rod 6 .

[0061] The transmission components include:

[0062] A gear 90, wherein the gear 90 is driven by a driver 3;

[0063] and a gear plate 91, the gear plate 91 is provided with an inner tooth portion 911 meshing with the gear 90, and is connected to the transmission rod 6, secondly, the gear plate 91 is provided with a linkage groove 912, the circumferential inner wall of the linkage groove 912 is provided with a linkage area 913, the transmission rod 6 is provided with a linkage plate portion 60, the linkage plate portion 60 is provided with a mounting hole 61 radially through, a spring 92 is provided in the mounting hole 61, and both ends of the spring 92 are provided with a ball 93, under the action of the spring 92, the ball 93 abuts against the linkage area 913;

[0064] When the valve core 5 moves normally in the axial direction of the valve cavity 10, the rolling ball 93 abuts against the linkage area 913 so that the linkage disk portion 60 rotates along with the gear disk 91;

[0065] When the movement of the valve core 5 in the axial direction of the valve chamber 10 is limited and the driver 3 continues to drive, the rolling ball 93 slips in the linkage area 913 so that the gear plate 91 rotates idly.

[0066] Through the above arrangement, the valve has the function of preventing the motor from stalling and avoiding the driver 3 from overloading or overloading.

[0067] Furthermore, the linkage area 913 includes at least two abutment areas with different inner diameters, and the abutment areas with different inner diameters are connected by a bevel transition, such as Figure 6 As shown, in this embodiment, four abutment areas are arranged in a cross shape, wherein the inner diameters of every two abutment areas are the same.

[0068] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented only by way of example and may not be restrictive. Although not explicitly stated herein, those skilled in the art will appreciate that the requirements of this application encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0069] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0070] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. A gas meter motor valve, characterized in that: include: A valve body (1), wherein the valve body (1) is provided with a valve cavity (10), a first positioning groove (11), and an air inlet (12) and an air outlet (13) which are in communication with the valve cavity (10); an inner wall of the valve body (1) is provided with a valve seat portion (14) facing into the valve cavity (10), and the valve seat portion (14) is located between the air inlet (12) and the air outlet (13); A machine base (2), one end of the machine base (2) being arranged in the first positioning groove (11), and the inner wall of the end being provided with a second positioning groove (20); A driver (3), wherein the driver (3) is arranged at an end of the base (2) away from the second positioning groove (20); A positioning plate (4), wherein the positioning plate (4) is arranged in the second positioning groove (20); A valve core (5), the valve core (5) comprising: A sealing portion (50), the sealing portion (50) being used to form a sealing fit with the valve seat portion (14), the sealing portion (50) being arranged to move axially along the valve cavity (10), and having a closed state in contact with the valve seat portion (14) and an open state in separation from the valve seat portion (14); A telescopic portion (51), wherein the telescopic portion (51) can be telescoped along the axial direction of the valve cavity (10); a first positioning portion (52), the first positioning portion (52) being clamped between the first positioning groove (11) and the machine base (2), and a second positioning portion (53), the second positioning portion (53) being clamped between the inner wall of the valve body (1) and the outer wall of the positioning plate (4); and a transmission rod (6), wherein the transmission rod (6) passes through the positioning plate (4) and cooperates with the valve core (5), and under the drive of the driver (3), the sealing part (50) is switched between a closed state and an open state.

2. A gas meter motor valve according to claim 1, characterized in that: The machine base (2) is provided with a transmission chamber (21) which is in communication with the valve chamber (10), and the valve core (5) isolates the valve chamber (10) from the transmission chamber (21).

3. A gas meter motor valve according to claim 2, characterized in that: Also includes: A connecting sleeve (7), the connecting sleeve (7) being arranged on the sealing portion (50) and having a linkage channel (70) arranged thereon; and a valve stem nut (8), wherein the valve stem nut (8) is arranged at one end of the linkage channel (70) away from the sealing portion (50), and one end of the transmission rod (6) is rotatably arranged on the machine base (2), and the other end thereof is matched with the valve stem nut (8).

4. A gas meter motor valve according to claim 3, characterized in that: A third positioning groove (40) adapted to the connecting sleeve (7) is provided on one side of the positioning plate (4) facing the sealing portion (50).

5. A gas meter motor valve according to claim 1, characterized in that: The air inlet (12) is arranged at an end of the valve body (1) away from the first positioning groove (11), and there are multiple air inlets (12) arranged along the circumferential side wall of the valve body (1).

6. A gas meter motor valve according to claim 1, characterized in that: Also includes: A gear (90), wherein the gear (90) is driven by a driver (3); and a gear plate (91), wherein the gear plate (91) is provided with an inner tooth portion (911) meshing with the gear (90), and is connected to the transmission rod (6).

7. A gas meter motor valve according to claim 6, characterized in that: The gear plate (91) is provided with a linkage groove (912), and a linkage area (913) is provided on the circumferential inner wall of the linkage groove (912). The transmission rod (6) is provided with a linkage plate portion (60), and a mounting hole (61) is provided on the linkage plate portion (60) in a radial direction. A spring (92) is provided in the mounting hole (61), and rolling balls (93) are provided at both ends of the spring (92). Under the action of the spring (92), the rolling balls (93) abut against the linkage area (913); When the valve core (5) moves normally in the axial direction of the valve cavity (10), the rolling ball (93) abuts against the linkage area (913), so that the linkage disk portion (60) rotates along with the gear disk (91); When the movement of the valve core (5) in the axial direction of the valve chamber (10) is restricted and the driver (3) continues to drive, the rolling ball (93) slips in the linkage area (913) so that the gear plate (91) rotates idly.

8. A gas meter motor valve according to claim 7, characterized in that: The linkage area (913) includes at least two abutment areas with different inner diameters.

9. A gas meter motor valve according to claim 1, characterized in that: The base (2) comprises a first shell (200) and a second shell (201); the second positioning groove (20) is arranged at one end of the second shell (201); a driving cavity (202) is arranged between the other end of the second shell (201) and the first shell (200); the driver (3) is arranged in the driving cavity (202); and the first shell (200) and the second shell (201) are connected by a snap-fit ​​structure.

10. A gas meter motor valve according to claim 9, characterized in that: A sealing ring (203) is provided between the first shell (200) and the second shell (201).

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