Central air-conditioning ventilation equipment

Abstract

The utility model discloses central air conditioner ventilation equipment which comprises a fixing plate and a middle frame symmetrically arranged on one side of the fixing plate, side frames are symmetrically arranged on the two sides of the middle frame, a plurality of connecting and fixing structures are arranged on the sides, close to the middle frame, of the side frames, and each connecting and fixing structure comprises an inserting sleeve. A plurality of connecting sleeves are fixedly connected in the middle frame, the inner walls of the connecting sleeves are connected with the outer walls of the inserting sleeves in a sliding and penetrating mode, fixing pieces used for fixing the positions of the inserting sleeves are arranged in the inserting sleeves, and the fixing pieces comprise clamping blocks. The side frame and the middle frame are fixed by inserting the inserting sleeve arranged in the side frame into the inner wall of the connecting sleeve arranged in the middle frame and fixing the positions of the side frame and the middle frame through the fixing piece, so that the situation that when the fan needs to be cleaned, a plurality of bolts are difficult to disassemble quickly in a small space, and normal cleaning and maintenance of the fan are affected is avoided.

Description

Technical Field

[0001] The utility model relates to the field of central air conditioning and ventilation, in particular to central air conditioning and ventilation equipment. Background Art

[0002] Central air conditioning ventilation devices usually include multiple components for achieving air circulation, filtration and regulation, including air supply outlets, return air outlets, duct systems, filters, fans and control systems. The central air conditioning fan refers to a device in which a motor drives rotating blades to rotate in a frame to generate airflow, and the fan frame is usually composed of a middle frame and symmetrically arranged side frames, and the three are fixed in position by multiple fixing bolts. However, since the fan has been circulating air for a long time, dust and impurities in the air are contaminated on the fan frame and blades. After long-term use, the conveyed air will have an odor and the air supply will be blocked, so it needs to be cleaned regularly. Since the fan is located in a small environment, the frame fixed by multiple fixing bolts is difficult to quickly disassemble and assemble using tools, affecting the normal use of the fan. Summary of the invention

[0003] The purpose of the utility model is to provide a central air-conditioning ventilation device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a central air-conditioning ventilation device, comprising a fixing plate and a middle frame symmetrically arranged on one side of the fixing plate, side frames symmetrically arranged on both sides of the middle frame, a plurality of connecting and fixing structures arranged on one side of the side frame close to the middle frame, the connecting and fixing structures comprising a plug-in sleeve, a plurality of connecting sleeves fixedly connected inside the middle frame, the inner wall of the connecting sleeve and the outer wall of the plug-in sleeve being slidably interlaced and connected, and a fixing piece for fixing the position of the plug-in sleeve arranged inside the plug-in sleeve.

[0005] Preferably, the fixing member comprises a card block, the inner wall of the plug sleeve is symmetrically provided with card slots in the vertical direction, the outer wall of the card block and the inner wall of the card slot are slidably interlaced and connected, and a pushing member is provided on the side of the card block away from the card slot.

[0006] Preferably, a partition is fixedly connected to one side of the inner wall of the plug-in sleeve, and the pushing member includes elastic blocks symmetrically arranged at both ends of the partition, and both ends of the partition are fixedly connected to guide rods, and the guide rods sequentially penetrate the elastic block and the middle part of the clamping block.

[0007] Preferably, a pressing block for pushing the card block is provided on the inner wall of the plug sleeve and on a side away from the card block.

[0008] Preferably, a motor is provided on one side of the fixed plate and on the side opposite to the middle frame, a rotating rod is fixedly connected to the output end of the motor, a jacket is provided on the outer wall of the rotating rod, a wind wheel is provided on the outer wall of the jacket, the wind wheel is provided inside the middle frame, and a clamping structure for fixing the position of the jacket is provided on the top of the jacket.

[0009] Preferably, the clamping structure includes a fixed block, the outer wall of the fixed block and the top of the rotating rod are slidably connected, a cavity is opened at the top of the jacket, a spring is arranged on the inner wall of the cavity and at the top of the fixed block, and a pull rod is fixedly connected to the top of the fixed block and inside the spring.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model provides a corresponding connecting and fixing structure on the side frame, utilizes the plug-in sleeve provided therein to insert into the inner wall of the connecting sleeve provided inside the middle frame, and fixes the positions of the two by a fixing piece, thereby realizing the support of the side frame and the middle frame, avoiding the difficulty in quickly disassembling multiple bolts in a small space when the fan needs to be cleaned, thereby affecting the normal cleaning and maintenance of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a cross-sectional view of the connection and fixing structure of the utility model.

[0014] Figure 3 It is a cross-sectional view of the clamping structure of the utility model.

[0015] Figure 4 For this utility model Figure 3 A magnified view of the structure in the middle.

[0016] In the figure: 1, fixed plate; 2, middle frame; 3, side frame; 4, connecting sleeve; 401, slot; 5, plug-in sleeve; 6, clamping block; 7, partition; 8, elastic block; 9, guide rod; 10, pressing block; 11, wind wheel; 12, motor; 13, rotating rod; 14, jacket; 1401, cavity; 15, fixed block; 16, spring; 17, pull rod. DETAILED DESCRIPTION

[0017] 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.

[0018] The utility model provides Figure 1-4 A central air conditioning and ventilation device is shown, comprising a fixing plate 1 and a middle frame 2 symmetrically arranged on one side of the fixing plate 1, side frames 3 are symmetrically arranged on both sides of the middle frame 2, a plurality of connecting and fixing structures are arranged on one side of the side frame 3 close to the middle frame 2, the connecting and fixing structures include a plug-in sleeve 5, a plurality of connecting sleeves 4 are fixedly connected inside the middle frame 2, the inner wall of the connecting sleeve 4 and the outer wall of the plug-in sleeve 5 are slidably inserted and connected, and a fixing piece for fixing the position of the plug-in sleeve 5 is arranged inside the plug-in sleeve 5.

[0019] It should be noted that, by providing a corresponding connecting and fixing structure on the side frame 3, the plug-in sleeve 5 provided therein is inserted into the inner wall of the connecting sleeve 4 provided inside the middle frame 2, and the positions of the two are fixed by a fixing part, so as to achieve the support of the side frame 3 and the middle frame 2, thereby avoiding the difficulty in quickly disassembling multiple bolts in a small space when the fan needs to be cleaned, thereby affecting the normal cleaning and maintenance of the fan. Furthermore, the plug-in sleeve 5 is provided on the side of the side frame 3 close to the middle frame 2 by welding, and the connecting sleeve 4 is also fixed on the middle frame 2 by welding, and the connecting sleeve 4 and the plug-in sleeve 5 correspond one to one.

[0020] The fixing member includes a clamping block 6 , and a clamping groove 401 is symmetrically provided on the inner wall of the plug sleeve 5 in the vertical direction. The outer wall of the clamping block 6 and the inner wall of the clamping groove 401 are slidably inserted and connected, and a pushing member is provided on the side of the clamping block 6 away from the clamping groove 401 .

[0021] Furthermore, the overall cross-sectional shape of the card block 6 is set to be a "convex" shape, and a conical slope is set on the side away from the card slot 401. The card block 6 is inserted into the card slot 401 to fix the position of the plug-in sleeve 5, thereby completing the splicing of the side frame 3 and the middle frame 2.

[0022] A partition 7 is fixedly connected to one side of the inner wall of the plug sleeve 5. The pushing member includes elastic blocks 8 symmetrically arranged at both ends of the partition 7. Both ends of the partition 7 are fixedly connected to guide rods 9, which pass through the elastic block 8 and the middle of the clamping block 6 in sequence.

[0023] Furthermore, the elastic block 8 made of elastic rubber material pushes the card block 6 to be stably inserted into the card slot 401, and the moving direction of the card block 6 is fixed by the guide rod 9 to avoid position deviation and affect normal fixation.

[0024] A pressing block 10 for pushing the clamping block 6 is provided on the inner wall of the plug sleeve 5 and on a side away from the clamping block 6 .

[0025] Furthermore, the cross-sectional shape of the pressing block 10 is set to be a "convex" shape, with a diameter on one side smaller than the diameter of the opening of the plug sleeve 5 and a diameter on the other side larger than the diameter of the opening of the plug sleeve 5, so that it can slide stably in the plug sleeve 5 to avoid detachment.

[0026] A motor 12 is provided on one side of the fixed plate 1 and on the side opposite to the middle frame 2. A rotating rod 13 is fixedly connected to the output end of the motor 12. A jacket 14 is provided on the outer wall of the rotating rod 13. A wind wheel 11 is provided on the outer wall of the jacket 14. The wind wheel 11 is provided inside the middle frame 2. A clamping structure for fixing the position of the jacket 14 is provided on the top of the jacket 14.

[0027] Furthermore, the motor 12 drives the rotating rod 13 and the jacket 14 arranged on the outer wall of the rotating rod 13 and the wind wheel 11 to rotate in a circle. It should be noted that the inner wall of the wind wheel 11 is provided with a plurality of blades, which can drive air circulation when the wind wheel 11 rotates.

[0028] The clamping structure includes a fixed block 15, the outer wall of the fixed block 15 and the top of the rotating rod 13 are slidably connected, a cavity 1401 is opened at the top of the jacket 14, a spring 16 is arranged on the inner wall of the cavity 1401 and located at the top of the fixed block 15, and a pull rod 17 is fixedly connected to the top of the fixed block 15 and located inside the spring 16.

[0029] Furthermore, the fixing block 15 whose cross-sectional shape in the snap-fit ​​structure is set to be similar to a "convex" shape is inserted into the groove on the rotating rod 13 under the push of the spring 16 to achieve position fixing. At the same time, when unlocking is required, it is only necessary to pull the pull rod 17 to drive the fixing block 15 to squeeze the spring 16, so that it disengages from the rotating rod 13 to complete the unlocking.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A central air conditioning and ventilation device, comprising a fixing plate (1) and a middle frame (2) symmetrically arranged on one side of the fixing plate (1), wherein side frames (3) are symmetrically arranged on both sides of the middle frame (2), characterized in that: A plurality of connection fixing structures are arranged on a side of the side frame (3) close to the middle frame (2), the connection fixing structures comprising a plug sleeve (5), a plurality of connection sleeves (4) are fixedly connected inside the middle frame (2), the inner wall of the connection sleeve (4) and the outer wall of the plug sleeve (5) are slidably inserted and connected, and a fixing piece for fixing the position of the plug sleeve (5) is arranged inside the plug sleeve (5).

2. A central air conditioning and ventilation device according to claim 1, characterized in that: The fixing member comprises a clamping block (6), the inner wall of the plug sleeve (5) is symmetrically provided with a clamping groove (401) in the vertical direction, the outer wall of the clamping block (6) and the inner wall of the clamping groove (401) are slidably interlaced and connected, and a pushing member is provided on a side of the clamping block (6) away from the clamping groove (401).

3. A central air conditioning and ventilation device according to claim 2, characterized in that: A partition plate (7) is fixedly connected to one side of the inner wall of the plug sleeve (5), and the pushing member comprises elastic blocks (8) symmetrically arranged at both ends of the partition plate (7). Both ends of the partition plate (7) are fixedly connected to guide rods (9), and the guide rods (9) sequentially penetrate the elastic block (8) and the middle part of the clamping block (6).

4. A central air conditioning and ventilation device according to claim 3, characterized in that: A pressing block (10) for pushing the clamping block (6) is provided on the inner wall of the plug sleeve (5) and on a side away from the clamping block (6).

5. A central air conditioning and ventilation device according to claim 1, characterized in that: A motor (12) is arranged on one side of the fixing plate (1) and on a side opposite to the middle frame (2); an output end of the motor (12) is fixedly connected to a rotating rod (13); an outer wall of the rotating rod (13) is provided with a jacket (14); an outer wall of the jacket (14) is provided with a wind wheel (11); the wind wheel (11) is arranged inside the middle frame (2); and a clamping structure for fixing the position of the jacket (14) is arranged at the top end of the jacket (14).

6. A central air conditioning and ventilation device according to claim 5, characterized in that: The clamping structure comprises a fixed block (15), the outer wall of the fixed block (15) and the top of the rotating rod (13) are slidably connected, a cavity (1401) is opened at the top of the jacket (14), a spring (16) is arranged on the inner wall of the cavity (1401) and located at the top of the fixed block (15), and a pull rod (17) is fixedly connected to the top of the fixed block (15) and located inside the spring (16).

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