Return fan with positioning adjusting structure

Abstract

The utility model discloses a return fan with a positioning and adjusting structure, which is provided with a base convenient for positioning and supporting, and a support frame is mounted on the upper surface of the base; comprising a sliding rail installed at the end of the upper surface of the supporting frame, a supporting block is slidably connected to the outer surface of the sliding rail in a limited mode, a main shaft is connected to the middle section of the inner surface of the supporting frame in a nested mode, a gear is installed on the outer surface of the main shaft in a nested mode, and a rack is connected to the upper side of the outer surface of the gear in a meshed mode. According to the air return machine with the positioning and adjusting structure, the supporting frame facilitating positioning and assembling is arranged, the sliding rail and the supporting block which can be assembled in a matched mode are matched, effective translation supporting is formed for the movable plate, and the angle of a rotating frame for installing a turbine assembled by the movable plate can be adjusted and controlled according to use of the air return machine body; accordingly, the assembling angle of the return fan body is controlled, butt joint of other using products in the later period is facilitated, and the using stability of the return fan body is improved through the clamping blocks on the rotating frame.

Description

Technical Field

[0001] The utility model relates to the technical field of return air fan positioning and adjustment, in particular to a return air fan provided with a positioning and adjustment structure. Background Art

[0002] The return fan can be used to circulate and regulate indoor air when in use. Its working principle is to inhale indoor air, and send the air back to the room after filtering and heating or cooling. The return fan can effectively improve the indoor air quality and indoor air comfort when in use, and can also save energy consumption. When in use, the return fan is stably positioned on the working frame. However, there are still some problems with the existing return fan positioning structure when in use.

[0003] In the prior art, the authorization publication (announcement) number: CN211176011U states that “a fixed bracket for a centrifugal fan” includes a base, a moving mechanism is provided on the upper surface of the base, a driving mechanism is provided on the moving mechanism and the base, and a fan mechanism is fixedly installed on the upper surface of the moving mechanism;

[0004] During the operation of the above-mentioned device, when it is necessary to connect the output end of the centrifugal fan with an external connecting pipe, the base is first installed at the position corresponding to the external connecting pipe, and the handle is turned to drive the screw to rotate. The screw drives the slider to move by cooperating with the screw nut, and the slider drives the centrifugal fan to move synchronously until the output end of the centrifugal fan is tightly against the external connecting pipe. At this time, the slider can be positioned by rotating the bolt so that the bolt is tightly against the bottom of the slide groove, thereby facilitating the subsequent connection of the output end of the centrifugal fan. However, when in use, it is not convenient to adjust it autonomously according to the use position of the return fan, and it is easy to cause misalignment during installation, making it difficult to align and assemble other connected components. Utility Model Content

[0005] The purpose of the utility model is to provide a return air fan with a positioning and adjustment structure to solve the problems raised in the above background technology that it is inconvenient to adjust the return air fan according to the use position, it is easy to cause misalignment during installation, and it is difficult to align and assemble other connected parts.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a return air fan with a positioning and adjusting structure is provided with a base for easy positioning and support, and a support frame is installed on the upper surface of the base;

[0007] It comprises: a slide rail installed on the upper surface end of the support frame, and the outer surface of the slide rail is limitedly slidably connected with a support block, and the middle section of the inner surface of the support frame is nested with a main shaft, and the outer surface of the main shaft is nested with a gear, and the upper side of the outer surface of the gear is meshed with a rack;

[0008] A nesting block is nested and connected to the outer surface end of the rack, and a moving plate is installed on the upper side of the outer surface of the nesting block, and a supporting block is installed on the lower surface of the moving plate, and a limiting groove is provided on the upper surface of the moving plate, and a sliding limiting ring is nested on the inner surface of the limiting groove;

[0009] The rotating frame is installed on the upper side of the outer surface of the limiting ring, and a turbine is installed in the middle section of the lower surface of the rotating frame, and the outer surface of the turbine is meshedly connected with a worm, and the inner surface of the rotating frame is rotatably connected with a turntable.

[0010] Preferably, the base, the support frame and the slide rail form an integrated structure, and the support frame forms a limited sliding structure through the slide rail and the movable plate, and the support frame forms a nested rotating structure through the main shaft and the gear.

[0011] The above structure facilitates stable support during use, and the use of the provided slide rails and support blocks can improve the stability of the movable plate during sliding, prevent tilting during movement, and can automatically adjust and position the return air fan according to the assembly position of the return air fan body.

[0012] Preferably, the gear forms a meshing moving structure through a rack, and the rack forms a limiting nesting structure through a nesting block and a moving plate, and the moving plate forms a limiting rotation structure through a limiting groove and a limiting ring.

[0013] Through the above structure, it is convenient to coordinate the gear and the rack during use, effectively control the stability of the movable plate when adjusting the position, and increase the stability during movement.

[0014] Preferably, the limiting ring and the rotating frame form an integrated structure, and the rotating frame and the upper side of the outer surface of the turbine are embedded and installed, and the turbine forms a limiting rotation structure through the worm and the moving plate, and the rotating frame and the turntable form a rotating structure.

[0015] Through the above structure, the angle of the rotating frame can be effectively controlled during use, and through the cooperation of the built-in turbine and worm, the stability of the rotating frame during use is improved, and the angle of the return air fan body above it can be controlled.

[0016] Preferably, the outer surface of the turntable is rotatably connected to a connecting rod, and the other side of the outer surface of the connecting rod is rotatably connected to a clamping block, and the clamping block is slid on the inner surface of the rotating frame through an installed slider, and a limiting block is installed on the inner surface of the clamping block, and a base plate is nested on the inner surface of the clamping block, and the return air fan body is installed on the upper surface of the base plate.

[0017] The above structure facilitates stable installation during use, controls the clamping device, controls the position of the bottom plate on which the return air fan body is installed, and improves the stability of the return air fan body in use.

[0018] Preferably, the connecting rod and the turntable form a rotating structure, and the connecting rod and the clamping block form a rotating structure, and the clamping block forms a limited sliding structure with the rotating frame through the slider, and the clamping block forms a limited locking structure with the bottom plate through the limit block.

[0019] Through the above structure, the double sets of clamping blocks can be stably rotated in linkage during use, effectively clamping the bottom plate of the return air fan body in the center, improving the use stability of the return air fan body, and improving the positioning stability through the use of the limit block.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The return air fan with a positioning and adjustment structure is provided with a support frame that is convenient for positioning and assembly, which can cooperate with the assembled slide rail and the support block to form an effective translation support for the movable plate, and can be adjusted according to the use of the return air fan body to control the angle of the rotating frame installed on the turbine assembled on the movable plate, thereby controlling the assembly angle of the return air fan body, which is convenient for later docking with other products, and the clamping block on the rotating frame improves the stability of the return air fan body;

[0022] 2. The return air fan with a positioning and adjustment structure is provided with a centrally rotating turbine, so as to control the integrally installed rotating frame to form a synchronous rotation and control the angle of the return air fan body. A turntable is centrally assembled on the inner surface of the turbine and the rotating frame, and cooperates with the connecting rod and the clamping block assembled thereon to effectively form a limit clamp on the base of the return air fan body through the limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the base of the utility model in a half-section view;

[0025] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the movable plate of the utility model;

[0026] Figure 4It is a partial cross-sectional three-dimensional structural schematic diagram of the rotating frame of the utility model;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the turntable of the utility model.

[0028] In the figure: 1. base; 2. support frame; 3. slide rail; 4. support block; 5. main shaft; 6. gear; 7. rack; 8. nesting block; 9. moving plate; 10. limit groove; 11. limit ring; 12. rotating frame; 13. turbine; 14. worm; 15. turntable; 16. connecting rod; 17. clamping block; 18. slider; 19. limit block; 20. bottom plate; 21. return air fan body. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 5 The utility model provides a technical solution: a return air fan with a positioning and adjusting structure is provided with a base 1 that is convenient for positioning and supporting, and a support frame 2 is installed on the upper surface of the base 1;

[0031] It includes: a slide rail 3, which is installed on the upper surface end of the support frame 2, and the outer surface of the slide rail 3 is limitedly slidably connected with a support block 4, and the middle section of the inner surface of the support frame 2 is nested with a main shaft 5, and the outer surface of the main shaft 5 is nested with a gear 6, and the upper side of the outer surface of the gear 6 is meshed with a rack 7;

[0032] The nesting block 8 is nested and connected to the outer surface end of the rack 7, and a moving plate 9 is installed on the upper side of the outer surface of the nesting block 8, and a supporting block 4 is installed on the lower surface of the moving plate 9, and a limiting groove 10 is provided on the upper surface of the moving plate 9, and a sliding limiting ring 11 is nested on the inner surface of the limiting groove 10;

[0033] The base 1, the support frame 2 and the slide rail 3 form an integrated structure, and the support frame 2 forms a limited sliding structure with the movable plate 9 through the slide rail 3, and the support frame 2 forms a nested rotating structure with the main shaft 5 and the gear 6.

[0034] The gear 6 forms a meshing moving structure through the rack 7, and the rack 7 forms a limited nesting structure with the moving plate 9 through the nesting block 8, and the moving plate 9 forms a limited rotation structure through the limiting groove 10 and the limiting ring 11.

[0035] When in use, the base 1 is fixed in the use position and supports the assembled support frame 2. When the position of the return fan body 21 needs to be adjusted, the servo motor assembled on the outside of the support frame 2 can be controlled to control the main shaft 5 to rotate, thereby driving the gear 6 to mesh with the rack 7, and driving the nested block 8 assembled with the rack 7 to control the movable plate 9 to form a position adjustment. When the movable plate 9 is adjusted, the support block 4 installed in cooperation with the movable plate 9 can stably slide on the upper surface of the slide rail 3, thereby controlling the stability of the movable plate 9 when moving and preventing it from falling off. In addition, the limiting groove 10 opened on the movable plate 9 can effectively control the limiting ring 11 to rotate. When the movable plate 9 needs to be controlled to move in multiple axes, a set of adjustable movable plates 9 are assembled again in a position perpendicular to the moving direction of the support block 4, and the corresponding limiting ring 11 is assembled on this movable plate 9 for upper rotation adjustment.

[0036] The rotating frame 12 is installed on the upper side of the outer surface of the limiting ring 11 , and a turbine 13 is installed in the middle section of the lower surface of the rotating frame 12 , and a worm 14 is meshedly connected to the outer surface of the turbine 13 , and a turntable 15 is rotatably connected to the inner surface of the rotating frame 12 .

[0037] The limiting ring 11 and the rotating frame 12 form an integrated structure, and the rotating frame 12 and the upper side of the outer surface of the turbine 13 are embedded and installed, and the turbine 13 forms a limiting rotation structure with the moving plate 9 through the worm 14, and the rotating frame 12 and the turntable 15 form a rotating structure.

[0038] The outer surface of the turntable 15 is rotatably connected to a connecting rod 16, and the other side of the outer surface of the connecting rod 16 is rotatably connected to a clamping block 17, and the clamping block 17 is limitedly slid on the inner surface of the rotating frame 12 through an installed slider 18, and a limiting block 19 is installed on the inner surface of the clamping block 17, and a base plate 20 is nested and installed on the inner surface of the clamping block 17, and a return air fan body 21 is installed on the upper surface of the base plate 20.

[0039] The connecting rod 16 and the turntable 15 form a rotating structure, and the connecting rod 16 and the clamping block 17 form a rotating structure. The clamping block 17 forms a limited sliding structure with the rotating frame 12 through the slider 18, and the clamping block 17 forms a limited locking structure with the bottom plate 20 through the limit block 19.

[0040] When the movable plate 9 is adjusted in position and the angle of the return fan body 21 needs to be controlled, the motor adjustment worm 14 built into the movable plate 9 can be started to rotate, so that the rotating frame 12 installed with the turbine 13 is meshed and adjusted by the worm 14 to form a limited rotation, and cooperate with the limiting ring 11 installed on the rotating frame 12 to improve the limited rotation of the rotating frame 12 in the movable plate 9, and control the angle of the return fan body 21 on the rotating frame 12. When the return fan body 21 is assembled, the rotating frame 12 and the motor installed on the lower side of the turbine 13 can be used to rotate the shaft to adjust the turntable 15 to form rotation on the inner side of the rotating frame 12, and the turntable 15 can be linked to control the clamping block 17 of the installation slide block 18 through the connecting rod 16 to form a limit control on the inner surface of the rotating frame 12, and drive the limit block 19 to form a limit engagement with the bottom plate 20 installed on the return fan body 21, thereby controlling the stability of the return fan body 21 during use.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A return air fan with a positioning and adjusting structure, provided with a base (1) that is convenient for positioning and supporting, and a support frame (2) is installed on the upper surface of the base (1); It is characterized in that include: A slide rail (3) is mounted on the upper surface end of the support frame (2), and the outer surface of the slide rail (3) is limitedly slidably connected to a support block (4), and the middle section of the inner surface of the support frame (2) is nested with a main shaft (5), and a gear (6) is nested on the outer surface of the main shaft (5), and the upper side of the outer surface of the gear (6) is meshedly connected with a rack (7); A nesting block (8) is nested and connected to the outer surface end of the rack (7), and a moving plate (9) is installed on the upper side of the outer surface of the nesting block (8), and a supporting block (4) is installed on the lower surface of the moving plate (9), and a limiting groove (10) is provided on the upper surface of the moving plate (9), and a sliding limiting ring (11) is nested on the inner surface of the limiting groove (10); The rotating frame (12) is installed on the upper side of the outer surface of the limiting ring (11), and a turbine (13) is installed in the middle section of the lower surface of the rotating frame (12), and the outer surface of the turbine (13) is meshingly connected to a worm (14), while the inner surface of the rotating frame (12) is rotatably connected to a turntable (15).

2. A return air fan with a positioning and adjusting structure according to claim 1, characterized in that: The base (1) forms an integrated structure with the support frame (2) and the slide rail (3), and the support frame (2) forms a limited sliding structure with the slide rail (3) and the movable plate (9), and the support frame (2) forms a nested rotating structure with the main shaft (5) and the gear (6).

3. The return air fan with a positioning and adjusting structure according to claim 1, characterized in that: The gear (6) forms a meshing moving structure through a rack (7), and the rack (7) forms a limited nesting structure through a nesting block (8) and a moving plate (9), and the moving plate (9) forms a limited rotation structure through a limited groove (10) and a limited ring (11).

4. The return air fan with a positioning and adjusting structure according to claim 1, characterized in that: The limiting ring (11) and the rotating frame (12) form an integrated structure, and the rotating frame (12) and the upper side of the outer surface of the turbine (13) are embedded and installed, and the turbine (13) forms a limiting rotation structure through the worm (14) and the moving plate (9), and the rotating frame (12) and the rotating disk (15) form a rotating structure.

5. The return air fan with a positioning and adjusting structure according to claim 1, characterized in that: The outer surface of the turntable (15) is rotatably connected to a connecting rod (16), and the other side of the outer surface of the connecting rod (16) is rotatably connected to a clamping block (17), and the clamping block (17) is limitedly slid on the inner surface of the rotating frame (12) through an installed slider (18), and a limiting block (19) is installed on the inner surface of the clamping block (17), and a bottom plate (20) is nested and installed on the inner surface of the clamping block (17), and a return air fan body (21) is installed on the upper surface of the bottom plate (20).

6. The return air fan with a positioning and adjusting structure according to claim 5, characterized in that: The connecting rod (16) and the rotating disk (15) form a rotating structure, and the connecting rod (16) and the clamping block (17) form a rotating structure. The clamping block (17) forms a limited sliding structure with the rotating frame (12) through the sliding block (18), and the clamping block (17) forms a limited locking structure with the bottom plate (20) through the limiting block (19).

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