Louver air volume valve

Abstract

The utility model discloses a shutter air volume valve which comprises a valve body, a rotating shaft, shutter blades and a self-locking transmission mechanism. The rotating shafts are rotatably arranged on the valve body, and the rotating shafts are uniformly distributed in a linear manner; the louver blades are in one-to-one correspondence with the rotating shafts, each group of louver blades consists of a left blade and a right blade, the left blades and the right blades are detachably wrapped on the corresponding rotating shafts, and the left blades and the right blades can synchronously rotate with the corresponding rotating shafts; the self-locking transmission mechanism is connected to the ends of the rotating shafts, the rotating shafts can be driven to rotate synchronously through the self-locking transmission mechanism, and meanwhile rotation of the rotating shafts can be locked through the self-locking transmission mechanism. The device is time-saving and labor-saving to clean and maintain; the angle of the louver blade can be adjusted, and the adjusted angle can be locked at the same time.

Description

Technical Field

[0001] The utility model belongs to the field of air volume valves, and in particular relates to a louver air volume valve. Background Art

[0002] A louver air volume valve, also known as a louver air volume control valve or louver air valve, is a device used to control the flow, pressure and direction of gas in a pipeline. It is widely used in industries and fields such as buildings, machinery, chemicals, pharmaceuticals, HVAC, ventilation, and air purification.

[0003] Although the shutter air volume valve has many advantages, it also has some disadvantages in practical applications:

[0004] 1) During use, the louver air volume valve is prone to accumulate dust and bacteria, which has a certain impact on indoor air quality. Therefore, regular cleaning and maintenance are required to reduce the impact on air quality. However, the louver blades in the louver air volume valve are generally fixed on the rotating shaft, which makes cleaning time-consuming and labor-intensive.

[0005] 2) The louver air volume valves currently in use generally lack a self-locking function. This results in the angle of the louver blades in the louver air volume valve changing when the air volume is large during use, making it impossible to accurately control the gas flow, pressure and direction.

[0006] Therefore, it is necessary to design a shutter air volume valve to effectively solve the above technical problems. Utility Model Content

[0007] In order to solve the problems existing in the prior art, the utility model aims to provide a louver air volume valve, which can effectively avoid the change of the louver blade angle while being easy to clean.

[0008] In order to achieve the above technical objectives and effects, the present invention is implemented through the following technical solutions:

[0009] A louver air volume valve comprises a valve body, a rotating shaft, louver blades and a self-locking transmission mechanism; the rotating shafts are rotatably arranged on the valve body, and the rotating shafts are evenly distributed in a straight line; the louver blades correspond to the rotating shafts one by one, and each group of the louver blades consists of a left blade and a right blade, the left blade and the right blade can be detachably wrapped on the corresponding rotating shaft, and the left blade and the right blade can rotate synchronously with the corresponding rotating shaft; the self-locking transmission mechanism is connected to the end of the rotating shaft, and the rotating shafts can be driven to rotate synchronously by the self-locking transmission mechanism, and the rotation of the rotating shaft can be locked by the self-locking transmission mechanism.

[0010] Furthermore, at least two groups of positioning holes are provided on the rotating shaft.

[0011] Furthermore, the left blade is provided with a left positioning post corresponding to the positioning holes one by one, and the left positioning post can be inserted into the corresponding positioning hole, and a threaded hole is provided on the end face of the left positioning post; the right blade is provided with a right positioning post corresponding to the positioning holes one by one, and the right positioning post can be inserted into the corresponding positioning hole, and a hole groove is provided on the end face of the positioning hole, and the hole groove is connected with the outer side surface of the right blade.

[0012] Furthermore, an avoidance groove is provided at the communication opening between the hole groove and the outer side surface of the right blade.

[0013] Furthermore, a plurality of pins are provided along the front and rear edges of the inner surface of the left blade; and sockets corresponding to the pins are provided along the front and rear edges of the inner surface of the right blade, and jacks are provided in the sockets.

[0014] Furthermore, the self-locking transmission mechanism includes a synchronous pulley assembly and a worm gear assembly; the synchronous pulley assembly is arranged at the lower end of the rotating shaft, and a group of synchronous pulley assemblies is arranged between every two groups of rotating shafts; and the worm gear assembly is arranged at the upper end of the rotating shaft.

[0015] Furthermore, the worm gear assembly includes a worm and a turbine; the outer surface of the worm is provided with worm teeth whose number is equal to the number of groups set in the synchronous pulley assembly, each group of the worm teeth is meshed and connected with a corresponding turbine, and one end of the worm is provided with an external hexagon.

[0016] Furthermore, the worm gear assembly includes a worm, a turbine and a drive assembly; the outer surface of the worm is provided with worm teeth whose number is equal to the number of groups set in the synchronous pulley assembly, and each group of worm teeth is meshed and connected with a corresponding turbine; the drive assembly is connected to one end of the worm.

[0017] Furthermore, the driving assembly includes a first gear, a second gear and a driving motor; the first gear is sleeved on the worm, the second gear is sleeved on the output shaft of the driving motor, and the first gear and the second gear are meshed and connected.

[0018] Furthermore, the first gear and the second gear have a 90° transmission angle.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The louver blades of the utility model are arranged on the rotating shaft in a double-piece wrapped manner, and the double pieces are connected to the rotating shaft by locking bolts and plug-in connection, which is easy to disassemble, thereby saving time and effort in cleaning and maintenance;

[0021] 2. The utility model adopts the transmission mode of turbine and worm gear, which realizes the adjustment of the louver angle and utilizes the self-locking function of the turbine and worm gear to lock the adjusted angle, thereby achieving more precise control of gas flow, pressure and direction.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the air volume valve of the utility model;

[0025] Figure 2 This is a cross-sectional view of the first embodiment of the air volume valve of the utility model;

[0026] Figure 3 This is a top view of the connection between the louver blades and the rotating shaft of the utility model;

[0027] Figure 4 This is an exploded view of the connection between the louver blades and the rotating shaft of the utility model from a first perspective;

[0028] Figure 5 This is an exploded view of the connection between the louver blades and the rotating shaft of the utility model from a second perspective;

[0029] Figure 6 This is a first partial cross-sectional view of the louver blades and the rotating shaft of the utility model;

[0030] Figure 7 This is a second partial cross-sectional view of the louver blades and the rotating shaft of the utility model;

[0031] Figure 8 This is a schematic diagram of the first embodiment of the connection between the self-locking transmission mechanism and the rotating shaft of the utility model;

[0032] Figure 9 This is a schematic diagram of a second embodiment of the connection between the self-locking transmission mechanism and the rotating shaft of the utility model.

[0033] Explanation of the numbers in the figure: 1. Valve body; 2. Rotating shaft; 3. Louver; 4. Self-locking transmission mechanism; 21. Positioning hole; 31. Left blade; 32. Right blade; 33. Left positioning column; 34. Right positioning column; 35. Latch; 36. Socket; 321. Avoidance groove; 331. Threaded hole; 341. Hole groove; 361. Socket; 41. Synchronous pulley assembly; 42. Worm gear assembly; 421. Worm; 422. Turbine; 423. Drive assembly; 4211. Worm gear; 4231. First gear; 4232. Second gear; 4233. Drive motor. DETAILED DESCRIPTION

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] Example 1

[0037] See also Figure 1-3 As shown, a louver air volume valve comprises a valve body 1, a rotating shaft 2, louver blades 3 and a self-locking transmission mechanism 4; wherein, in this embodiment, 8 groups of the rotating shafts 2 are provided, but it is not limited to 8 groups, and other numbers of groups can also be provided, for example: 2, 4, 6, 10, etc.; the rotating shafts 2 are rotatably arranged on the valve body 1, and the rotating shafts 2 are evenly distributed in a straight line; the louver blades 3 correspond to the rotating shafts 2 one by one, and each group of the louver blades 3 consists of a left blade 31 and a right blade 32, and the left blade 31 and the right blade 32 are detachably wrapped on the corresponding rotating shaft 2, and the left blade 31 and the right blade 32 can rotate synchronously with the corresponding rotating shaft 2; the self-locking transmission mechanism 4 is connected to the end of the rotating shaft 2, and the self-locking transmission mechanism 4 can drive the rotating shafts 2 to rotate synchronously, and the self-locking transmission mechanism 4 can realize locking the rotation of the rotating shaft 2.

[0038] Further, in this embodiment, see Figure 3-6As shown, three groups of positioning holes 21 are provided on the rotating shaft 2, but are not limited to three groups, and other groups can also be set, but not less than two groups; and the left blade 31 is provided with a left positioning post 33 corresponding to the positioning holes 21 one by one, and the left positioning post 33 can be inserted into the corresponding positioning hole 21, and a threaded hole 331 is provided on the end surface of the left positioning post 33; the right blade 32 is provided with a right positioning post 34 corresponding to the positioning hole 21 one by one, and the right positioning post 34 can be inserted into the corresponding positioning hole 21, and a hole groove 341 is provided on the end surface of the positioning hole 21, and the hole groove 341 is connected to the outer side surface of the right blade 32, and the hole groove 341 is connected to the right blade An avoidance groove 321 is provided at the outer side communication opening of 32; during installation, the left blade 31 and the right blade 32 are first wrapped relative to each other on the outer surface of the rotating shaft 2, at this time, the left positioning column 33 and the right positioning column 34 are both inserted into the corresponding positioning holes 21, wherein the end faces of the left positioning column 33 and the right positioning column 34 inserted in the same positioning hole 21 are in conflict with each other; then the locking bolt is locked into the threaded hole 331 through the hole groove 341 and tightened, at this time, the nut of the locking bolt is accommodated in the avoidance groove 321, and the nut is in conflict with the bottom of the avoidance groove 321, thereby realizing the detachable arrangement of the left blade 31 and the right blade 32 on the rotating shaft 2.

[0039] For further information, see Figure 3-5 and Figure 7 As shown, in this embodiment, 8 pins 35 are provided along the front and rear edges of the inner surface of the left blade 31; sockets 36 corresponding to the pins 35 are provided along the front and rear edges of the inner surface of the right blade 32, and a socket 361 is provided in the socket 36; when the left blade 31 and the right blade 32 are wrapped and locked on the outer surface of the rotating shaft 2, the pins 35 are inserted into the sockets 361, thereby improving the connection strength of the relative edges of the left blade 31 and the right blade 32; here, it should be noted that the number of the above-mentioned pins 35 is only one embodiment, and is not used to limit the scope of this application. In actual settings, more or fewer pins can be set as long as the requirements are met.

[0040] Further, in this embodiment, see Figure 8-9 As shown, the self-locking transmission mechanism 4 includes a synchronous pulley assembly 41 and a worm gear assembly 42; the synchronous pulley assembly 41 is arranged at the lower end of the rotating shaft 2, and a group of synchronous pulley assemblies 41 is arranged between every two groups of rotating shafts 2; and the worm gear assembly 42 is arranged at the upper end of the rotating shaft 2;

[0041] Among them, see Figure 8As shown, the worm gear assembly 42 includes a worm 421, a worm gear 422 and a drive assembly 423; the outer surface of the worm 421 is provided with worm teeth 4211 equal in number to the number of the synchronous pulley assembly 41, and each set of worm teeth 4211 is meshed and connected with a corresponding worm gear 422; the drive assembly 423 is connected to one end of the worm 421; wherein, in this embodiment, continue to refer to Figure 8 As shown, the driving assembly 423 includes a first gear 4231, a second gear 4232 and a driving motor 4233; the first gear 4231 is sleeved on the worm 421, and the second gear 4232 is sleeved on the output shaft of the driving motor 4233. The first gear 4231 and the second gear 4232 are meshed and connected, and the first gear 4231 and the second gear 4232 are transmitted at 90 degrees; when installing, refer to Figure 1-2 As shown, one of the two groups of rotating shafts 2 connected in each group of the synchronous pulley assembly 41 is provided with a turbine 422 on the upper end of the rotating shaft 2, and the worm 421 is provided on the valve body 1 through a bearing seat. At this time, the worm teeth 4211 on the worm 421 are all meshed with the corresponding turbines 422; the driving motor 4233 is fixed to the valve body 1; when the angle of the louver 3 needs to be adjusted, the driving motor 4233 drives the first gear 4231 to rotate through the second gear 4232, and the rotating first gear 4 231 drives the worm 421 to rotate, and the rotating worm 421 drives the 8 groups of the rotating shafts 2 to rotate synchronously through the transmission of the turbine 422 and the synchronous pulley assembly 41, thereby driving the louver blades 3 set on the rotating shaft 2 to rotate, and then realizing the adjustment of the angle of the louver blades 3; here, it should be noted that after the adjustment of the angle of the louver blades 3 is completed, the rotation of the rotating shaft 2 is locked through the self-locking function between the worm 421 and the turbine 422, thereby avoiding the change of the angle of the louver blades 3 during use.

[0042] Example 2

[0043] See also Figure 9 As shown, what is different from the first embodiment is that one end of the worm 421 is directly provided with an external hexagon, but it is not limited to a hexagon, and can also be set to other polygons, such as: four sides, etc., or a pair of opposite planes or even a single plane are opened at one end of the worm 421, or an internal polygonal hole is opened on the end face of the worm 421, as long as it is convenient to rotate the worm 421 with a wrench; therefore, when it is necessary to adjust the angle of the louver 3, the worm 421 can be directly rotated with a wrench.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A louver air volume valve, characterized by: The invention comprises a valve body (1), a rotating shaft (2), louver blades (3) and a self-locking transmission mechanism (4); the rotating shaft (2) is rotatably arranged on the valve body (1), and the rotating shafts (2) are evenly distributed in a straight line; the louver blades (3) correspond to the rotating shaft (2) one by one, and each group of the louver blades (3) is composed of a left blade (31) and a right blade (32), and the left blade (31) and the right blade (32) are detachably wrapped on the corresponding rotating shaft (2), and the left blade (31) and the right blade (32) can rotate synchronously with the corresponding rotating shaft (2); the self-locking transmission mechanism (4) is connected to the end of the rotating shaft (2), and can drive the rotating shafts (2) to rotate synchronously through the self-locking transmission mechanism (4), and can lock the rotation of the rotating shaft (2) through the self-locking transmission mechanism (4).

2. The louver air volume valve according to claim 1, characterized in that: At least two groups of positioning holes (21) are provided on the rotating shaft (2).

3. The louver air volume valve according to claim 2, characterized in that: The left blade (31) is provided with a left positioning post (33) corresponding to the positioning hole (21) one by one, and the left positioning post (33) can be inserted into the corresponding positioning hole (21), and a threaded hole (331) is provided on the end surface of the left positioning post (33); the right blade (32) is provided with a right positioning post (34) corresponding to the positioning hole (21) one by one, and the right positioning post (34) can be inserted into the corresponding positioning hole (21), and a hole groove (341) is provided on the end surface of the positioning hole (21), and the hole groove (341) is connected with the outer side surface of the right blade (32).

4. The louver air volume valve according to claim 3, characterized in that: An avoidance groove (321) is provided at the communication opening between the hole groove (341) and the outer side surface of the right blade (32).

5. The louver air volume valve according to claim 3, characterized in that: A plurality of latches (35) are provided along the front and rear edges of the inner surface of the left blade (31); and sockets (36) corresponding to the latches (35) are provided along the front and rear edges of the inner surface of the right blade (32), wherein a socket (361) is provided in the socket (36).

6. The louver air volume valve according to claim 1, characterized in that: The self-locking transmission mechanism (4) comprises a synchronous pulley assembly (41) and a worm gear assembly (42); the synchronous pulley assembly (41) is arranged at the lower end of the rotating shaft (2), and one group of the synchronous pulley assembly (41) is arranged between every two groups of the rotating shafts (2); and the worm gear assembly (42) is arranged at the upper end of the rotating shaft (2).

7. The louver air volume valve according to claim 6, characterized in that: The worm gear assembly (42) comprises a worm (421), a turbine (422) and a drive assembly (423); the outer surface of the worm (421) is provided with worm teeth (4211) equal in number to the number of groups provided in the synchronous pulley assembly (41); each group of worm teeth (4211) is meshedly connected to a corresponding turbine (422); the drive assembly (423) is connected to one end of the worm (421).

8. The louver air volume valve according to claim 7, characterized in that: The driving assembly (423) includes a first gear (4231), a second gear (4232) and a driving motor (4233); the first gear (4231) is sleeved on the worm (421), the second gear (4232) is sleeved on the output shaft of the driving motor (4233), and the first gear (4231) and the second gear (4232) are meshedly connected.

9. The louver air volume valve according to claim 8, characterized in that: The first gear (4231) and the second gear (4232) have a 90° transmission angle.

10. The louver air volume valve according to claim 6, characterized in that: The worm gear assembly (42) comprises a worm (421) and a turbine (422); the outer surface of the worm (421) is provided with worm teeth (4211) equal in number to the number of groups provided in the synchronous pulley assembly (41); each group of worm teeth (4211) is meshedly connected to a corresponding turbine (422); and one end of the worm (421) is provided with an external hexagonal socket.

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