Combined electric air valve

Abstract

The utility model discloses a combined electric air valve which comprises a valve body and a connecting pipe, a mounting cavity is arranged on the valve body, a motor is fixedly arranged in the mounting cavity, a rotating shaft of the motor is connected with a rotating rod, and the bottom of the rotating rod is rotatably connected with the bottom of the valve body; a clamping piece is arranged on the rotating rod and is used for fixing the valve plate; threaded grooves are formed in the inlet end and the outlet end of the valve body, a threaded section is arranged at the end of the connecting pipe, and the threaded section of the connecting pipe is matched with the threaded grooves of the valve body to achieve threaded connection between the valve body and the connecting pipe. A support is arranged at the inlet end and / or the outlet end of the valve body. A limiting assembly is arranged on the bracket; a mounting ring is arranged on the connecting pipe, and a limiting hole matched with the limiting part for use is formed in the mounting ring. The matched connecting pipe is arranged, the connecting pipe is in threaded connection with the valve body, and the connecting mode is simple and convenient. And the limiting assembly is arranged to achieve secondary fixing of the connecting pipe.

Description

Technical Field

[0001] The utility model relates to a combined electric air valve, in particular to a mechanical structure of the air valve. Background Art

[0002] Electric air valves are widely used in cold or hot air ducts to regulate or cut off gas media. Electric air valves can adjust the opening according to a certain ratio and are automated equipment. In use, the motor is driven by electric energy, which is converted into mechanical energy. The torque of several Nm to tens of Nm can be output to adjust the valve opening, achieving precise valve opening control.

[0003] The prior art discloses a damper (publication number: CN209146362U), which mainly includes a damper body and a valve plate, which are connected by welding. The damper plate is characterized in that a fixed valve plate and an adjusting valve plate are provided on the valve plate, and fan-shaped blades are evenly provided on the fixed valve plate and the adjusting valve plate. In terms of control, a motor and a travel switch are provided on the fixed bracket. The electric damper has good sealing performance, and can accurately control the air volume of the damper or realize the switch of the damper by controlling the travel of the motor.

[0004] Although the air valve of the above patent is easy to adjust, the electric air valve is mainly connected to the pipeline through a flange when installed, and the flange needs to be tightened with bolts during connection, which makes the installation of the electric air valve more complicated. Therefore, it is necessary to design a combined electric air valve that is easy to install to solve the above problem. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a combined electric air valve, which changes the traditional flange installation method and sets a threaded connection between a connecting pipe and a valve body, making the installation method more convenient.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A combined electric air valve comprises a valve body and a connecting pipe, wherein the valve body is provided with an installation chamber, a motor is fixedly provided in the installation chamber, a rotating shaft of the motor is connected to a rotating rod, and the bottom of the rotating rod is rotatably connected to the bottom of the valve body; a clamp is provided on the rotating rod, and the clamp is used to fix the valve plate;

[0008] The inlet and outlet ends of the valve body are both provided with thread grooves, the end of the connecting pipe is provided with a thread section, and the thread section of the connecting pipe cooperates with the thread groove of the valve body to realize the threaded connection between the valve body and the connecting pipe; a bracket is provided on the inlet and / or outlet end of the valve body;

[0009] The bracket is provided with a limit assembly, which includes a limit rod, a connecting rod, a limit plate and a spring; the bracket is provided with a mounting hole, through which the limit rod passes, a connecting rod is provided at one end of the limit rod, and a limit plate is provided at the other end, a section from the end of the limit rod to the limit plate forms a limit part, and a spring is provided between the limit plate and the bracket; the connecting pipe is provided with a mounting ring, and the mounting ring is provided with a limit hole used in conjunction with the limit part. As a preferred embodiment, a sealing ring is provided between the connecting pipe and the valve body, and the sealing ring is located at the end of the connecting pipe. The sealing ring further enhances the sealing effect of the installation, and because the sealing ring has a certain elasticity, the limit hole provided on the connecting pipe will cooperate with the limit rod more conveniently. The connecting pipe can be rotated at a certain angle to ensure a better sealing effect.

[0010] As a preferred embodiment, one side of the mounting ring is a threaded section, and the other side is a connecting body; the mounting ring is an annular protrusion arranged on the connecting body.

[0011] As a preferred embodiment, a sealing ring is provided on the threaded section, and the sealing ring is close to the mounting ring. The mounting ring is provided in a convex form, which is convenient for the installation of the sealing ring, and can achieve the squeezing of the sealing ring to enhance the sealing effect. As a preferred embodiment, a groove is provided on the inner side of the inlet end and / or the outlet end of the valve body, and a rubber ring is clamped inside the groove, and a filter is fixedly connected to the inner side of the rubber ring. The filter can filter some impurities.

[0012] As a preferred embodiment, a transparent cover is provided on the valve body, an installation chamber is formed inside the transparent cover, and a through hole is opened on the top plate of the transparent cover.

[0013] As a preferred embodiment, the motor is fixed to the top plate and / or side wall of the transparent cover.

[0014] As a preferred embodiment, the clamping member includes an arc-shaped portion and a mounting plate, wherein the mounting plates are arranged on both sides of the arc-shaped portion; and the screws pass through the mounting plate and are fixed to the valve plate.

[0015] As a preferred embodiment, an indicator is fixedly connected to the top of the rotating rod, and further, the indicating direction of the indicator is consistent with the direction of the valve plate, and the offset angle of the valve plate can be obtained by observing the position of the indicator. As a preferred embodiment, a sealing gasket is provided between the valve body and the rotating rod to enhance the sealing performance of the connection between the rotating rod and the valve body.

[0016] The utility model has at least the following beneficial effects: the utility model is provided with a matching connecting pipe, and the connecting pipe and the valve body are connected by threads, and the connection method is simple. In addition, in addition to the initial connection by threaded connection, the connecting pipe is also fixed by setting a limit assembly. Through this connection method, the connection is more secure.

[0017] The limit assembly of the utility model comprises a limit rod, a connecting rod, a limit plate and a spring. The limit rod is driven to move by pulling the connecting rod. When the connecting pipe is installed in place, the limit part is aligned with the limit hole by fine-tuning, and the limit rod can be fixed to the connecting pipe by loosening the connecting rod. The limit method is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in more detail below using exemplary embodiments with reference to the accompanying drawings, and the different features of the exemplary embodiments can be combined with each other as needed according to the above description. In particular, if the effects of individual features are necessary for a specific application, these features can be added to the existing embodiments according to the above description. On the contrary, if the technical effects of individual features are not important in a specific application, these features can be omitted from the existing embodiments. Similar, identical and functionally identical elements in the drawings are given the same reference numerals within the appropriate range.

[0019] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the valve body structure of an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the connecting pipe structure of an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the valve body of an embodiment of the utility model;

[0024] In the figure, 1-valve body, 2-thread groove, 3-connecting pipe, 4-bracket, 5-limit rod, 6-mounting ring, 7-limit hole, 8-connecting rod, 9-limit plate, 10-spring, 11-sealing ring, 12-sealing ring, 13-groove, 14-rubber ring, 15-filter screen, 16-transparent cover, 17-through hole, 18-motor, 19-rotating rod, 20-card, 21-valve plate, 22-indicator, 23-sealing pad. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0026] Hereinafter, different embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to the specific form disclosed herein, but rather, the present disclosure should be interpreted as covering different changes, equivalents and / or replacements of the embodiments of the present disclosure. When describing the accompanying drawings, similar reference numerals may be used to indicate similar components.

[0027] In the present disclosure, if there is a statement "A or B", "at least one of A and / or B", or "one or more of A and / or B", it can include all possible combinations of the listed items. For example, the statement "A or B", "at least one of A and B", or "at least one of A or B" refers to all of the following situations: (1) including at least one A, (2) including at least one B, or (3) including both at least one A and at least one B.

[0028] The expressions used in different embodiments of the present disclosure, if there is "first", "second", "the first" or "the second" can modify different elements, regardless of order and / or importance, without limiting the corresponding elements. For example, a first user device and a second user device refer to different user devices, although both of them are user devices. For example, a first element can be referred to as a second element, and similarly, a second element can be referred to as a first element without departing from the scope of the present disclosure.

[0029] It will be understood that when an element (e.g., a first element) is referred to as being (operably or communicatively) "connected to" or "coupled to" another element (e.g., a second element), the element may be directly connected or coupled to the other element, or any other element (e.g., a third element) may be interposed therebetween. Conversely, when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled to" another element (the second element), no element (e.g., a third element) is interposed therebetween.

[0030] In the present disclosure, the terms are used to describe specific embodiments and do not limit the present disclosure. As used herein, the singular form is intended to also include the plural form, unless the content clearly indicates otherwise. In the specification, it should be understood that the term "including" or "having" represents the presence of a feature, number, step, operation, structural element, component or combination thereof, without excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, structural elements, components or combinations thereof.

[0031] It should be understood that certain details are provided in the following description to facilitate a complete understanding of the example embodiments. However, one of ordinary skill in the art should understand that the example embodiments can be implemented without these specific details. For example, the system can be shown in a block diagram to avoid obscuring the example with unnecessary details. In other examples, well-known processes, structures, and techniques may not be shown in unnecessary details to avoid obscuring the example.

[0032] Embodiment 1

[0033] like Figure 1 As shown, a combined electric air valve includes a valve body 1 and a connecting pipe 3. The valve body 1 is provided with an installation chamber, in which a motor 18 is fixedly installed. The rotating shaft of the motor 18 is connected to a rotating rod 19, and the bottom of the rotating rod 19 is rotatably connected to the bottom of the valve body 1. The rotating rod 19 is provided with a clamp 20, and the clamp 20 is used to fix the valve plate 21.

[0034] A threaded groove 2 is provided at the inlet and outlet ends of the valve body 1, and a threaded section is provided at the end of the connecting pipe 3. The threaded section of the connecting pipe 3 cooperates with the threaded groove 2 of the valve body 1 to realize the threaded connection between the valve body 1 and the connecting pipe 3; a bracket 4 is provided on the inlet and / or outlet end of the valve body 1; generally, a limit assembly can be provided at one end or both ends of the valve body 1.

[0035] like Figure 3 As shown, the limiting assembly includes a limiting rod 5, a connecting rod 8, a limiting plate 9 and a spring 10; a mounting hole is provided on the bracket 4, and the limiting rod 5 passes through the mounting hole. A connecting rod 8 is provided at one end of the limiting rod 5, and a limiting plate 9 is provided at the other end. A section from the end of the limiting rod 5 to the limiting plate 9 forms a limiting portion, and a spring 10 is provided between the limiting plate 9 and the bracket 4; a mounting ring 6 is provided on the connecting pipe 3, and a limiting hole 7 used in conjunction with the limiting portion is provided on the mounting ring 6, as shown in FIG. Figure 4 shown.

[0036] The connecting pipe 3 of this embodiment can be a connecting pipe 3 used in conjunction with the valve body 1, and other pipelines can be directly connected to the connecting pipe 3. Of course, other pipelines can also be set as connecting pipes 3, and the pipelines are directly connected to the valve body 1.

[0037] In this embodiment, the thread groove 2, the limiting rod 5, the limiting hole 7 and the spring 10 are arranged, and the limiting rod 5 is moved to the top of the bracket 4 by using the connecting rod 8. The connecting pipe 3 is connected to the valve body 1 through the thread groove 2 to enhance the firmness and sealing of the connection. The connecting rod 8 is loosened, and under the elastic action of the spring 10, the limiting plate 9 drives the limiting rod 5 to slide inside the bracket 4, so as to be inserted into the corresponding limiting hole 7 (such as Figure 2As shown), the connection between the valve body 1 and the connecting pipe 3 is further strengthened to avoid the phenomenon of self-rotation, ensure the firmness of the connection, improve the convenience of operation, and make installation and disassembly more convenient.

[0038] In a preferred embodiment, a sealing ring 11 is provided between the connecting pipe 3 and the valve body 1. The sealing ring 11 is located at the end of the connecting pipe 3. When in use, the connecting pipe 3 is threadedly connected to the valve body 1. As the connecting pipe 3 is squeezed, the sealing ring 11 is squeezed and deformed to achieve a sealing effect. The structure can be seen in the figure. Figure 2 .

[0039] In a preferred embodiment, one side of the mounting ring 6 is a threaded section, and the other side is a connecting body; the mounting ring 6 is an annular protrusion disposed on the connecting body.

[0040] In a preferred embodiment, a sealing ring 12 is provided on the threaded section, and the sealing ring 12 is close to the mounting ring 6. The sealing ring 12 seals the connection between the connecting pipe 3 and the outer surface of the valve body 1, and the sealing effect is good. The sealing ring 11 cooperates with the sealing ring 12 to achieve a double sealing effect.

[0041] In a preferred embodiment, a groove 13 is provided inside the inlet end and / or the outlet end of the valve body 1, a rubber ring 14 is clamped inside the groove 13, and a filter 15 is fixedly connected to the inner side of the rubber ring 14. The rubber ring 14 is provided to facilitate the installation of the filter 15. The filter 15 is provided to facilitate filtering impurities in the pipeline.

[0042] In a preferred embodiment, a transparent cover 16 is provided on the valve body 1 , and a mounting chamber is formed inside the transparent cover 16 . A through hole 17 is provided on the top plate of the transparent cover 16 , and the through hole 17 can be used for heat dissipation.

[0043] In a preferred embodiment, the motor 18 is fixed to the top plate and / or side wall of the transparent cover 16, such as Figure 5 As shown, the motor 18 is directly fixed on the top plate of the transparent cover 16.

[0044] In a preferred embodiment, Figure 5 As shown, the clamp 20 includes an arc-shaped portion and a mounting plate, and the mounting plates are arranged on both sides of the arc-shaped portion; screws (or screws) pass through the mounting plates and are fixed to the valve plate 21. In order to make the clamp 20 and the rotating rod 19 more firmly connected, a protrusion is provided on the inner side of the arc-shaped portion, and an assembly groove that matches the protrusion is provided on the rotating rod 19. After the protrusion matches the assembly groove, the clamp 20 cannot rotate around the rotating rod 19, and the position of the clamp 20 and the rotating rod 19 is fixed. The valve plate 21 is connected by the clamp 20, which is convenient for installation and disassembly, and it is convenient to replace some components when damaged, saving costs.

[0045] In a preferred embodiment, an indicator 22 is fixedly connected to the top of the rotating rod 19. Figure 5 As shown, the indicator 22 can be made into a plate shape, such as a triangle or a diamond shape, which can play an indicating role. Furthermore, the indicating end of the indicator 22 is consistent with the position of the valve plate 21. Through the cooperation of the transparent cover 16 and the indicator 22, it is convenient to check the offset angle of the valve plate 21. The indicator 22 can rotate with the rotation of the rotating rod 19, and can more intuitively display the closing degree of the valve plate 21, so that the valve opening can be identified outside the air valve.

[0046] In a preferred embodiment, a sealing gasket 23 is provided between the valve body 1 and the rotating rod 19. Figure 5 As shown, the sealing gasket 23 can play a sealing effect.

[0047] Working principle: Use the connecting rod 8 to move the limiting rod 5 to the top of the bracket 4, the connecting pipe 3 is connected to the valve body 1 through the threaded groove 2, and the connecting rod 8 is loosened. Under the elastic action of the spring 10, the limiting plate 9 drives the limiting rod 5 to slide inside the bracket 4 and is inserted into the corresponding limiting hole 7. The sealing ring 11 seals the connection between one end of the connecting pipe 3 and the inner side of the valve body 1, and the sealing ring 12 seals the connection between the connecting pipe 3 and the outer surface of the valve body 1. The filter screen 15 is clamped in the groove 13 through the rubber ring 14 to filter some debris and dust. The clamp 20 is fixed to the valve plate 21 by bolts. The motor 18 drives the rotating rod 19 to rotate, so that it drives the valve plate 21 to rotate and adjust the opening and closing angle of the air valve. The indicator 22 rotates with the rotation of the rotating rod 19, which can more intuitively display the degree of closure of the valve plate 21.

[0048] Although the preferred embodiments of the utility model have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A combined electric air valve, characterized in that: It includes a valve body and a connecting pipe. The valve body is provided with an installation chamber. A motor is fixedly provided in the installation chamber. The rotating shaft of the motor is connected to a rotating rod. The bottom of the rotating rod is rotatably connected to the bottom of the valve body. A clamp is provided on the rotating rod, and the clamp is used to fix the valve plate. The inlet and outlet ends of the valve body are both provided with thread grooves, the end of the connecting pipe is provided with a thread section, and the thread section of the connecting pipe cooperates with the thread groove of the valve body to realize the threaded connection between the valve body and the connecting pipe; a bracket is provided on the inlet and / or outlet end of the valve body; A limit assembly is arranged on the bracket, and the limit assembly includes a limit rod, a connecting rod, a limit plate and a spring; a mounting hole is arranged on the bracket, and the limit rod passes through the mounting hole, a connecting rod is arranged at one end of the limit rod, and a limit plate is arranged at the other end, a section from the end of the limit rod to the limit plate forms a limit part, and a spring is arranged between the limit plate and the bracket; a mounting ring is arranged on the connecting pipe, and a limit hole used in conjunction with the limit part is arranged on the mounting ring.

2. A combined electric air valve according to claim 1, characterized in that: A sealing ring is arranged between the connecting pipe and the valve body, and the sealing ring is located at the end of the connecting pipe.

3. The combined electric air valve according to claim 1, characterized in that: One side of the mounting ring is a threaded section, and the other side is a connecting body; the mounting ring is an annular protrusion arranged on the connecting body.

4. A combined electric air valve according to claim 3, characterized in that: A sealing ring is arranged on the threaded section and is close to the mounting ring.

5. The combined electric air valve according to claim 1, characterized in that: A groove is arranged inside the inlet end and / or the outlet end of the valve body, a rubber ring is clamped inside the groove, and a filter screen is fixedly connected to the inner side of the rubber ring.

6. A combined electric air valve according to claim 1, characterized in that: A transparent cover is arranged on the valve body, an installation chamber is formed inside the transparent cover, and a through hole is opened on the top plate of the transparent cover.

7. A combined electric air valve according to claim 6, characterized in that: The motor is fixed to the top plate and / or the side wall of the transparent cover.

8. The combined electric air valve according to claim 1, characterized in that: The clamping piece comprises an arc-shaped portion and a mounting plate, wherein the mounting plates are arranged on both sides of the arc-shaped portion; and screws pass through the mounting plates and are fixed to the valve plate.

9. The combined electric air valve according to claim 1, characterized in that: The top of the rotating rod is fixedly connected with an indicator.

10. A combined electric air valve according to claim 1 or 9, characterized in that: A sealing gasket is arranged between the valve body and the rotating rod.

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