Flexible connection mechanism for air outlet of return fan

Abstract

The utility model discloses a flexible connection mechanism for an air outlet of a return fan, which is provided with a base convenient to support, the upper surface of the base is provided with a return fan body, and the outer surface of the return fan body is connected with a flexible connection pipeline; comprising a positioning assembly installed on the side edge of the outer surface of the flexible connection pipeline, sliding blocks are slidably connected to the upper side and the lower side of the inner surface of the positioning assembly, and a reset spring is connected between the sliding blocks. According to the flexible connection mechanism for the air outlet of the return fan, the flexible connection pipeline convenient to assemble is arranged, the position of the clamping piece is effectively and manually controlled through the use of the positioning assembly installed on the side edge of the flexible connection pipeline, the clamping piece is in butt joint with the return fan body, and the other side of the flexible connection pipeline is in butt joint with the air outlet pipe fitting; the two sides of the flexible connection pipeline are effectively clamped and positioned for use, the convenience of the flexible connection pipeline is improved, and then the stability of the assembled air outlet pipe fitting and the flexible connection pipeline is controlled through the supportable and adjustable nesting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of return air fan air outlet soft connection mechanism, in particular to a return air fan air outlet soft connection mechanism. Background Art

[0002] When the return air fan outlet is in use, it is assembled by using bolts and screws. In order to reduce the vibration and noise of the air outlet duct, the assembled soft connection pipe is effectively connected between the two to reduce the vibration between the return air fan and the air outlet duct. However, when using the soft connection pipe, there are still some problems with its assembly mechanism.

[0003] In the prior art, the authorization publication (announcement) number: CN213540842U states “a flexible connection for a centrifugal fan”, which includes two rectangular connection frames, which are connected by a flexible external pipe, and a plurality of support steel rings are arranged at intervals on the flexible external pipe, and also includes two guide frames, which are respectively connected to the two connection frames, and the two guide frames are located on the inner side of the flexible external pipe, and the end of the guide frame away from the connection frame is inclined toward the middle of the connection frame;

[0004] During the operation of the above-mentioned device, the airflow that has just entered the soft connection can be guided to the middle of the soft pipe through the guide frame, which can prevent the dirt entrained in the airflow from being blown directly onto the wall of the soft pipe to a certain extent. At the same time, it can also reduce the pulling force at the connection between the soft pipe and the connection frame, thereby increasing the service life. However, since the soft-connected pipes need to be fastened with multiple sets of bolts when docking, the docking is cumbersome and it is not convenient to quickly position and assemble them in advance. It is also not convenient to improve the support of the air outlet pipe fittings connected to the soft pipe, which can easily cause the air outlet pipe fittings to sink and bend. Utility Model Content

[0005] The purpose of the utility model is to provide a return fan air outlet soft connection mechanism to solve the problem raised in the above background technology that when the soft connection pipes are connected, they need to be fastened by multiple sets of bolts, which easily makes the connection complicated and inconvenient for quick and advance positioning and assembly, and it is not convenient to improve the support of the air outlet pipe fittings connected by the soft pipes, which easily causes the air outlet pipe fittings to sink and bend.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a return air fan outlet soft connection mechanism, provided with a base for easy support, and the return air fan body is installed on the upper surface of the base, and the outer surface of the return air fan body is connected with a soft connection pipe;

[0007] It includes: a positioning assembly installed on the side of the outer surface of the flexible connection pipe, and a slider is slidably connected to the upper and lower sides of the inner surface of the positioning assembly, and a return spring is connected between the sliders, and a handle and a clamping block are installed on the outer surface of the slider, and the outer surface of the clamping block is clamped and connected with the return air machine body, and an air outlet pipe is installed at the other end of the flexible connection pipe;

[0008] A moving block is slidably connected to the inner surface of the base, and a support plate is installed on the upper surface of the moving block, and a damping pad is nested and connected to the inner surface of the moving block, while another set of damping pads is nested on the inner surface of the base, and the two sets of damping pads are frictionally connected to each other;

[0009] The guide column is nested and connected to the inner surface of the support plate, and the left and right sides of the outer surface of the guide column are connected to the extrusion springs, and the side of the outer surface of the extrusion spring is connected to the centering block, while the inner surface of the centering block passes through the inner surface of the guide column, and the upper surface of the centering block is installed with a nesting component.

[0010] Preferably, the positioning component is symmetrically embedded in the side of the outer surface of the flexible connection pipe, and the positioning component and the slider form an elastic sliding structure, and the slider, handle and block form an integrated structure, while the block and the return air fan body form a limiting snap-fit ​​structure.

[0011] Through the above structure, a limiting elastic snap fit is effectively formed during use, and a positioning snap fit is formed when the soft connection pipe is connected to the return air fan body, thereby improving the use stability and assembly convenience.

[0012] Preferably, the support plate forms a limited sliding structure with the base through the moving block, and the base and the moving block form a limited nesting structure with the damping pad, and a friction structure is formed between the relative damping pads.

[0013] Through the above structure, limited sliding can be effectively formed during use, horizontal sliding can be formed, and the friction force during unidirectional sliding can be controlled, and the buffering performance between the support plate and the base can be controlled.

[0014] Preferably, the guide column and the support plate form a built-in nested structure, and the support plate forms an elastic centering limiting structure with the centering block through the guide column and the extrusion spring, and the extrusion spring is symmetrically arranged about the middle section of the outer surface of the centering block. At the same time, the centering block and the nesting component form an integrated structure, and the nesting component forms a limiting nesting structure at the connection with the soft connecting pipe and the air outlet pipe.

[0015] Through the above structure, the centering positioning of the centering block can be effectively controlled during use, thereby controlling the supporting stability of the flexible connecting pipe during use, preventing the flexible connecting pipe from tilting and causing excessive bending damage at the connection.

[0016] Preferably, an extrusion block is slidably installed on the inner surface of the nested component, and a moving rod is installed on the side of the outer surface of the extrusion block, and a limit spring passes through the outer surface of the moving rod to nest the limit spring between the extrusion block and the nested component, and a clamp is installed on the other side of the outer surface of the extrusion block, and the outer surface of the clamp passes through the side of the connection between the soft connecting pipe and the air outlet pipe.

[0017] The above structure facilitates stable positioning and assembly during use, improves the stability of use, and prevents separation from the connection between the soft connection pipe and the air outlet pipe.

[0018] Preferably, the moving rod is embedded in the outer surface of the extrusion block, and the extrusion block forms a built-in elastic extrusion structure through a limit spring and the extrusion block and the nested component, and the extrusion block forms a through-limiting structure at the connection between the soft connecting pipe and the air outlet pipe through a clamp.

[0019] Through the above structure, the position of the extrusion block is effectively controlled during use, and a limit pipe is formed at the connection between the soft connection pipe and the air outlet pipe to prevent the nested components from falling off, thereby improving the stability of use.

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

[0021] 1. The return air fan air outlet soft connection mechanism is provided with a soft connection pipe that is easy to assemble, and through the use of the positioning component installed on its side, the position of the clamp is effectively manually controlled and docked with the return air fan body, and the other side of the soft connection pipe is connected to the air outlet pipe fitting, forming an effective clamping and positioning use for both sides of the soft connection pipe, thereby improving the convenience of the soft connection pipe, and then the assembled air outlet pipe fitting and the soft connection pipe are supported and adjusted by the nested component to control the stability of the air outlet pipe fitting;

[0022] 2. The return fan air outlet soft connection mechanism is provided with a moving block which is convenient for supporting sliding, and forms a stable limit for the support plate. The contact between the damping pad in the nested assembly of the moving block and the built-in damping pad in the base can effectively control the stability of the support plate, form a friction combination, reduce the shaking of the support plate, and provide a centering block which can be elastically controlled on the upper side of the support plate. The use of the nested components can improve the limit stability, form a buffer, and support the bottom of the connection between the soft connection pipe and the air outlet pipe fitting. The use of the matching clamps can prevent the nested components from detaching from the connection, thereby improving the stability of the support. 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 positioning component of the utility model;

[0026] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the support plate of the utility model;

[0027] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the nested components of the utility model.

[0028] In the figure: 1. base; 2. return air fan body; 3. flexible connection pipe; 4. positioning assembly; 5. slider; 6. reset spring; 7. handle; 8. clamping block; 9. air outlet pipe fitting; 10. moving block; 11. support plate; 12. damping pad; 13. guide column; 14. extrusion spring; 15. centering block; 16. nesting assembly; 17. extrusion block; 18. moving rod; 19. limit spring; 20. clamping piece. 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 outlet soft connection mechanism, which is provided with a base 1 for easy support, and a return air fan body 2 is installed on the upper surface of the base 1, and a soft connection pipe 3 is connected to the outer surface of the return air fan body 2;

[0031] It includes: a positioning component 4, which is installed on the side of the outer surface of the soft connection pipe 3, and the inner surface of the positioning component 4 is slidably connected with a slider 5 on the upper and lower sides, and a return spring 6 is connected between the sliders 5, and the outer surface of the slider 5 is installed with a handle 7 and a clamping block 8, and the outer surface of the clamping block 8 is clamped and connected with the return air machine body 2, and the other end of the soft connection pipe 3 is installed with an air outlet pipe 9;

[0032] The positioning component 4 is symmetrically embedded in the side of the outer surface of the flexible connection pipe 3, and the positioning component 4 and the slider 5 form an elastic sliding structure, and the slider 5, the handle 7 and the block 8 form an integrated structure, and the block 8 and the return air fan body 2 form a limiting snap-fit ​​structure.

[0033] When in use, the base 1 is positioned in the working position, and the return fan body 2 is installed on the upper side of the base 1, and the flexible connection pipe 3 is assembled at the air outlet position of the return fan body 2, and the air outlet pipe fitting 9 is assembled at the other end of the flexible connection pipe 3, and when the flexible connection pipe 3 is assembled at the air outlet position of the return fan body 2, the positioning component 4 for controlling the installation of the flexible connection pipe 3 is manually controlled to squeeze the handle 7 in the middle, and the slider 5 installed on the handle 7 is controlled to form a limited sliding, thereby squeezing the reset spring 6 to form a contraction, thereby driving the clamping block 8 to stably clamp into the end of the return fan body 2, and forming a positioning assembly between the flexible connection pipe 3 and the air outlet pipe fitting 9, so that the flexible connection pipe 3 and the air outlet pipe fitting 9 form the same positioning docking, and then forming a bolt positioning use, thereby improving the stability of the device connection and improving the convenience of assembling the flexible connection pipe 3;

[0034] A moving block 10 is slidably connected to the inner surface of the base 1, and a support plate 11 is installed on the upper surface of the moving block 10, and a damping pad 12 is nested and connected to the inner surface of the moving block 10, and another set of damping pads 12 is nested on the inner surface of the base 1, and the two sets of damping pads 12 are frictionally connected to each other;

[0035] The guide column 13 is nested and connected to the inner surface of the support plate 11, and the left and right sides of the outer surface of the guide column 13 are connected to the extrusion springs 14, and the side of the outer surface of the extrusion spring 14 is connected to the centering block 15, and the inner surface of the centering block 15 passes through the inner surface of the guide column 13, and the upper surface of the centering block 15 is installed with a nesting component 16.

[0036] The support plate 11 forms a limited sliding structure with the base 1 through the moving block 10, and the base 1 and the moving block 10 form a limited nesting structure with the damping pad 12, and a friction structure is formed between the damping pads 12 relative to each other.

[0037] The guide column 13 and the support plate 11 form a built-in nested structure, and the support plate 11 forms an elastic centering limiting structure with the centering block 15 through the guide column 13 and the extrusion spring 14, and the extrusion spring 14 is symmetrically arranged about the middle section of the outer surface of the centering block 15. At the same time, the centering block 15 and the nesting component 16 form an integrated structure, and the nesting component 16 forms a limiting nesting structure at the connection between the soft connecting pipe 3 and the air outlet pipe 9.

[0038] An extrusion block 17 is slidably installed on the inner surface of the nesting component 16, and a moving rod 18 is installed on the side of the outer surface of the extrusion block 17, and a limit spring 19 passes through the outer surface of the moving rod 18, and the limit spring 19 is nested and connected between the extrusion block 17 and the nesting component 16, and a clamp 20 is installed on the other side of the outer surface of the extrusion block 17, and the outer surface of the clamp 20 passes through the side of the connection between the soft connecting pipe 3 and the air outlet pipe 9.

[0039] The moving rod 18 is embedded in the outer surface of the extrusion block 17, and the extrusion block 17 forms a built-in elastic extrusion structure through the limiting spring 19 and the extrusion block 17 and the nesting component 16, and the extrusion block 17 forms a through-limiting structure at the connection between the soft connecting pipe 3 and the air outlet pipe 9 through the clamp 20.

[0040] When the flexible connection pipe 3 is in use, the nesting component 16 is assembled at the connection between the flexible connection pipe 3 and the air outlet pipe fitting 9, and the nesting component 16 is coordinated with the flexible connection pipe 3 and the air outlet pipe fitting 9 to form a limit, so as to control the stability of the assembly, and the adjustment of the moving rod 18 assembled with the nesting component 16 is coordinated to effectively drive the installed extrusion block 17 to squeeze the limit spring 19, and drive the installed clamping piece 20 to align with the connection between the flexible connection pipe 3 and the air outlet pipe fitting 9, so as to loosen the moving rod 18 to stably penetrate the clamping piece 20 through the flexible connection pipe 3. The connection between the pipe 3 and the air outlet pipe fitting 9 improves the stability of the assembly, and a centering block 15 is installed on the lower side of the nested component 16. The centering block 15 cooperates with the penetrating guide column 13 and the use of symmetrically connected extrusion springs 14 to effectively control the centering block 15 in the support plate 11 for use in a centering limit position and form a moving buffer. When the support plate 11 is in use, friction can be formed between the damping pad 12 nested by the installed moving block 10 and the damping pad 12 nested by the base 1, and the buffering in the other direction can be controlled to improve the stability of the device.

[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 outlet flexible connection mechanism, comprising a base (1) for easy support, a return air fan body (2) being mounted on the upper surface of the base (1), and a flexible connection pipe (3) being connected to the outer surface of the return air fan body (2); It is characterized in that include: A positioning assembly (4) is mounted on the side of the outer surface of the flexible connection pipe (3), and a slider (5) is slidably connected to the upper and lower sides of the inner surface of the positioning assembly (4), and a return spring (6) is connected between the sliders (5), and a handle (7) and a clamping block (8) are installed on the outer surface of the slider (5), and the outer surface of the clamping block (8) is clamped and connected to the return air fan body (2), and an air outlet pipe (9) is installed at the other end of the flexible connection pipe (3); A moving block (10) is slidably connected to the inner surface of the base (1), and a support plate (11) is installed on the upper surface of the moving block (10), and a damping pad (12) is nested and connected to the inner surface of the moving block (10), while another group of damping pads (12) is nested in the inner surface of the base (1), and the two groups of damping pads (12) are frictionally connected to each other; The guide column (13) is nested and connected to the inner surface of the support plate (11), and the left and right sides of the outer surface of the guide column (13) are connected to the compression spring (14), and the side edge of the outer surface of the compression spring (14) is connected to the centering block (15), and the inner surface of the centering block (15) passes through the inner surface of the guide column (13), and the upper surface of the centering block (15) is installed with a nesting component (16).

2. A return air fan outlet soft connection mechanism according to claim 1, characterized in that: The positioning component (4) is symmetrically embedded in the side edge of the outer surface of the flexible connection pipe (3), and the positioning component (4) and the slider (5) form an elastic sliding structure, and the slider (5) and the handle (7) and the clamping block (8) form an integrated structure, while the clamping block (8) and the return air fan body (2) form a limited clamping structure.

3. The return air fan outlet soft connection mechanism according to claim 1, characterized in that: The support plate (11) forms a limited sliding structure with the base (1) through the moving block (10), and the base (1) and the moving block (10) form a limited nesting structure with the damping pad (12), and a friction structure is formed between the damping pads (12) facing each other.

4. The return air fan outlet soft connection mechanism according to claim 1, characterized in that: The guide column (13) and the support plate (11) form a built-in nested structure, and the support plate (11) forms an elastic centering limiting structure with the centering block (15) through the guide column (13) and the extrusion spring (14), and the extrusion spring (14) is symmetrically arranged with respect to the middle section of the outer surface of the centering block (15), and the centering block (15) and the nesting component (16) form an integrated structure, and the nesting component (16) forms a limiting nesting structure at the connection between the soft connection pipe (3) and the air outlet pipe (9).

5. The return air fan outlet soft connection mechanism according to claim 1, characterized in that: An extrusion block (17) is slidably mounted on the inner surface of the nesting component (16), and a moving rod (18) is mounted on the side of the outer surface of the extrusion block (17), and a limit spring (19) passes through the outer surface of the moving rod (18), so that the limit spring (19) is nested and connected between the extrusion block (17) and the nesting component (16), and a clamp (20) is mounted on the other side of the outer surface of the extrusion block (17), and the outer surface of the clamp (20) passes through the side of the connection between the soft connection pipe (3) and the air outlet pipe (9).

6. A return air fan outlet soft connection mechanism according to claim 5, characterized in that: The moving rod (18) is embeddedly mounted on the outer surface of the extrusion block (17), and the extrusion block (17) forms a built-in elastic extrusion structure through a limit spring (19) and the extrusion block (17) and the nesting component (16), and the extrusion block (17) forms a through-limiting structure at the connection between the soft connection pipe (3) and the air outlet pipe (9) through a clamp (20).

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