A control valve ventilation volume regulating device

Abstract

This utility model discloses a control valve ventilation volume regulating device, belonging to the field of fluid control equipment. The device includes a valve body mechanism, an adjusting mechanism at the inner end of the valve body mechanism, and a fixing mechanism at the outer end of the adjusting mechanism. The fixing mechanism includes a housing, with controllers fixedly installed at the upper and lower ends of the housing. Electric telescopic rods are fixedly installed on the upper and lower sides of the inner end of the housing. A clamp is fixedly connected to the front end of the electric telescopic rod, and an anti-slip pad is provided on the inner side of the clamp. This control valve ventilation volume regulating device features a clamp that effectively fixes the rotating shaft when needed, reducing the wind force on the drive box and improving the device's protective performance. The anti-slip texture increases the frictional resistance when the rotating shaft contacts the clamp, improving the stability of the device during use. A through hole on the inner middle side of the valve body allows the drive assembly to be installed on the outer side without obstructing the movement of the baffle.

Description

Technical Field

[0001] This utility model relates to the field of fluid control equipment, and in particular to a control valve ventilation volume regulating device. Background Technology

[0002] In the operation of ventilation systems, the ventilation volume needs to be dynamically adjusted according to the actual scenario to achieve a balance between energy saving and comfort requirements. The control valve ventilation volume adjustment device is the core component for realizing this function. Currently, such devices on the market mainly adjust the valve opening through mechanical transmission or electric actuators, thereby changing the cross-sectional area of ​​the airflow channel to control the air volume. Developing a control valve ventilation volume adjustment device with simplified structure, controllable cost, high precision, and closed-loop feedback function has become one of the important directions for the optimization of ventilation systems. Existing control valve ventilation volume adjustment devices generally adjust the ventilation volume by adjusting the opening and closing angle between the baffle and the valve body using a motor. The baffle angle is kept fixed by the motor's control force on the rotating shaft. However, in actual use, the baffle itself will bear a large wind force while adjusting the ventilation volume. Prolonged exposure to a large wind force can damage the motor and cause certain losses. Therefore, we propose a control valve ventilation volume adjustment device. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a control valve ventilation volume adjustment device, which effectively fixes the rotating shaft when fixation is required by setting a clamp, reduces the wind force on the motor, and improves the protection performance of the device.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A control valve ventilation volume adjustment device includes a valve body mechanism, wherein an adjustment mechanism is provided at the inner end of the valve body mechanism and a fixing mechanism is provided at the outer end of the adjustment mechanism. The fixing mechanism includes a housing, with controllers fixedly installed at the upper and lower ends of the housing, and electric telescopic rods fixedly installed on the upper and lower sides of the inner end of the housing. A clamp is fixedly connected to the front end of the electric telescopic rod, and an anti-slip pad is provided on the inner side of the clamp. By setting the clamp, the rotating shaft is effectively fixed when fixation is required, reducing the wind force on the drive box and improving the protective performance of the device.

[0005] Furthermore, the adjustment mechanism includes a drive box, the front end of which is connected to a rotating shaft. The outer end of the rotating shaft is provided with anti-slip texture, and the front end of the rotating shaft is fixedly connected to a baffle. By providing anti-slip texture, the frictional resistance when the rotating shaft contacts the clamp is increased, thereby further improving its fixing ability and enhancing the stability of the device during use.

[0006] Furthermore, the valve body mechanism includes a valve body body, and the inner end of the valve body body has a through hole on the side of the middle portion. By setting the inner end of the valve body body to have a through hole on the side of the middle portion, the device can install the drive component on the outside without obstructing the movement of the baffle, thus improving the flexibility of the device during use.

[0007] Furthermore, the rotating shaft passes through the through hole and is movably connected to it. The size of the rotating shaft is adapted to the through hole. By setting the size of the rotating shaft to be adapted to the through hole, radial shaking or offset of the rotating shaft in the through hole can be avoided, ensuring the stability of the rotating shaft's movement trajectory. This provides a basis for the precise opening and closing of the valve body and reduces the airflow adjustment error caused by component offset.

[0008] Furthermore, the baffle is located at the inner middle of the valve body, the shape of the baffle is adapted to the valve body, and the size of the baffle is slightly smaller than the internal size of the valve body.

[0009] Furthermore, the outer casing is penetrated by a pivot and is movably connected to it.

[0010] Furthermore, the number of clamps is two, both of which are arc-shaped structures and are arranged vertically to form a clamping space adapted to the rotating shaft.

[0011] Furthermore, the anti-slip pad corresponds to the anti-slip pattern in position.

[0012] In summary, this utility model has the following beneficial effects: 1. By setting clamps to effectively fix the rotating shaft when fixation is required, the wind force on the drive box is reduced, and the protective performance of the device is improved. By setting anti-slip textures to increase the frictional resistance when the rotating shaft contacts the clamps, its fixing ability is further improved, and the stability of the device during use is improved. 2. By setting a through hole on the inner middle side of the valve body, the drive component can be installed on the outside of the device without obstructing the movement of the baffle, which improves the flexibility of the device during use. By setting the size of the rotating shaft to match the through hole, radial shaking or offset of the rotating shaft in the through hole can be avoided, ensuring the stability of the rotating shaft's movement trajectory. This provides a basis for the precise opening and closing of the valve body and reduces the air volume adjustment error caused by component offset. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure in this embodiment; Figure 2 This is a three-dimensional structural diagram of the valve body mechanism in this embodiment; Figure 3 This is a three-dimensional structural diagram of the adjustment mechanism in this embodiment; Figure 4 This is a three-dimensional structural diagram of the fixing mechanism in this embodiment; Figure 5 This is a schematic diagram of the installation structure of the fixing mechanism in this embodiment.

[0014] In the figure, 1 is the valve body mechanism; 101 is the valve body; 102 is the through hole; 2 is the adjusting mechanism; 201 is the drive box; 202 is the rotating shaft; 203 is the anti-slip texture; 204 is the baffle; 3 is the fixing mechanism; 301 is the outer shell; 302 is the controller; 303 is the electric telescopic rod; 304 is the clamp; and 305 is the anti-slip pad. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0017] Reference Figure 1-5 As shown, a control valve ventilation volume adjustment device is provided in a preferred embodiment of the present utility model, including a valve body mechanism 1, an adjustment mechanism 2 is provided at the inner end of the valve body mechanism 1, and a fixing mechanism 3 is provided at the outer end of the adjustment mechanism 2. The fixing mechanism 3 includes a housing 301. A controller 302 is fixedly installed at the upper and lower ends of the housing 301. An electric telescopic rod 303 is fixedly installed on the upper and lower sides of the inner end of the housing 301. A clamp 304 is fixedly connected to the front end of the electric telescopic rod 303. An anti-slip pad 305 is provided on the inner side of the clamp 304. The housing 301 is penetrated by a rotating shaft 202 and is movably connected to it. There are two clamps 304. Both clamps 304 are arc-shaped and arranged vertically to form a clamping space that is adapted to the rotating shaft 202. The anti-slip pad 305 corresponds to the anti-slip texture 203. By setting the clamps 304, the rotating shaft 202 is effectively fixed when fixation is required, reducing the wind force on the drive box 201 and improving the protective performance of the device.

[0018] Reference Figure 1-5 As shown, the adjustment mechanism 2 includes a drive box 201. The front end of the drive box 201 is connected to a rotating shaft 202. The outer end of the rotating shaft 202 is provided with anti-slip texture 203. The front end of the rotating shaft 202 is fixedly connected to a baffle 204. The baffle 204 is located in the inner end of the valve body 101. The shape of the baffle 204 is adapted to the valve body 101. The size of the baffle 204 is slightly smaller than the internal size of the valve body 101. By setting the anti-slip texture 203, the frictional resistance when the rotating shaft 202 contacts the clamp 304 is increased, further improving its fixing ability and improving the stability of the device during use.

[0019] Reference Figure 1-2 As shown, the valve body mechanism 1 includes a valve body 101. The valve body 101 has a through hole 102 on the side of the middle part of the inner end. By setting the through hole 102 on the side of the middle part of the inner end of the valve body 101, the device can install the drive component on the outside without blocking the movement of the baffle 204, thus improving the flexibility of the device during use.

[0020] Reference Figure 2-5 As shown, the rotating shaft 202 passes through the through hole 102 and is movably connected to it. The size of the rotating shaft 202 is adapted to the through hole 102. By setting the size of the rotating shaft 202 to be adapted to the through hole 102, radial shaking or offset of the rotating shaft 202 in the through hole 102 can be avoided, ensuring the stability of the movement trajectory of the rotating shaft 202, providing a basis for the precise opening and closing of the valve body 101, and reducing the air volume adjustment error caused by component offset.

[0021] Specific implementation process: The valve body 101 serves as the basic ventilation channel. The baffle 204 is in its initial position, its shape is adapted to the valve body 101, and its size is slightly smaller to ensure flexible movement without jamming. The rotating shaft 202 passes through the through hole 102 of the valve body 101 and is movably connected to it. The electric telescopic rod 303 is in the retracted state. The two arc-shaped clamps 304 maintain a gap with the rotating shaft 202 and do not form a clamp. The current position of the rotating shaft 202 is maintained only by the drive box 201 to avoid accidental movement in the non-adjustment state. The controller 302 first receives the external air volume adjustment command. If the clamp 304 was previously in a fixed clamping state, the controller 302 will immediately send a retraction signal to the electric telescopic rod 303. The electric telescopic rod 303 will drive the clamp 304 at the front end to retract synchronously, causing the anti-slip pad 305 on the inner side of the clamp 304 to separate from the anti-slip texture 203 on the outer end of the rotating shaft 202, releasing the fixation on the rotating shaft 202 and making room for the rotation adjustment of the rotating shaft 202. The drive box 201 receives the drive signal from the controller 302 or the external system, starts the internal drive assembly, and drives the rotating shaft 202 to rotate around the through hole 102. 2. The baffle 204, fixedly connected to the front end, rotates synchronously with the rotating shaft 202, changing its blocking area in the middle of the inner end of the valve body 101. The larger the rotation angle of the baffle 204, the larger the ventilation cross-sectional area inside the valve body 101, and the higher the ventilation volume; conversely, the lower the ventilation volume, achieving precise control of the ventilation volume. After the drive box 201 detects that the angle of the baffle 204 has reached the preset value, it stops the drive action, and the rotating shaft 202 and the baffle 204 maintain the current position. The controller 302 synchronously receives the "adjustment in place" signal and sends an extension command to the electric telescopic rod 303. The telescopic rod 303 pushes the two arc-shaped clamps 304 toward the rotating shaft 202 until the anti-slip pads 305 on the inner side of the clamps 304 are in close contact with the anti-slip textures 203 of the rotating shaft 202. The frictional resistance increased by the anti-slip textures 203 makes the two clamps 304 form a clamping space that matches the rotating shaft 202, firmly fixing the rotating shaft 202. At this time, the force on the rotating shaft 202 is borne by the clamps 304, which greatly reduces the wind impact on the drive box 201, ensuring the stability of the baffle 204 position, improving the overall protection performance of the device, and maintaining the continuous and stable target ventilation volume.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A control valve air flow regulating device, characterized by: It includes a valve body mechanism (1), an adjustment mechanism (2) is provided at the inner end of the valve body mechanism (1), and a fixing mechanism (3) is provided at the outer end of the adjustment mechanism (2). The fixing mechanism (3) includes a housing (301), a controller (302) is fixedly installed at the upper and lower ends of the housing (301), an electric telescopic rod (303) is fixedly installed on the upper and lower sides of the inner end of the housing (301), a clamp (304) is fixedly connected to the front end of the electric telescopic rod (303), and an anti-slip pad (305) is provided on the inner side of the clamp (304).

2. A valve air flow regulating device as defined in claim 1, wherein: The adjustment mechanism (2) includes a drive box (201), the front end of the drive box (201) is connected to a rotating shaft (202), the middle of the outer end of the rotating shaft (202) is provided with anti-slip texture (203), and the front end of the rotating shaft (202) is fixedly connected to a baffle (204).

3. A valve airflow regulating device as defined in claim 2, wherein: The valve body mechanism (1) includes a valve body body (101), and the valve body body (101) has a through hole (102) on the side of the middle part of the inner end.

4. A valve airflow regulating device as defined in claim 3, wherein: The rotating shaft (202) passes through the through hole (102) and is movably connected to it, and the size of the rotating shaft (202) is adapted to the through hole (102).

5. A valve airflow regulating device as defined in claim 3, wherein: The baffle (204) is located in the middle of the inner end of the valve body (101). The shape of the baffle (204) is adapted to the valve body (101), and the size of the baffle (204) is slightly smaller than the internal size of the valve body (101).

6. A valve airflow regulating device as defined in claim 2, wherein: The outer casing (301) is penetrated by and movably connected to the pivot (202).

7. A valve airflow regulating device as defined in claim 2, wherein: The number of clamps (304) is two, both of which are arc-shaped and arranged vertically to form a clamping space that is compatible with the rotating shaft (202).

8. A valve airflow regulating device as defined in claim 2, wherein: The anti-slip pad (305) is positioned corresponding to the anti-slip pattern (203).

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