Fresh air ventilator convenient to install

Abstract

The fresh air ventilator convenient to install comprises a shell, an access cover, a gradienter and L-shaped hook bodies, an access hole is formed in the side, in the vertical direction, of the shell, the access cover is connected to the shell and covers the access hole, the L-shaped hook bodies are connected to the outer wall of the shell, the multiple L-shaped hook bodies are distributed in the circumferential direction of the shell at intervals, and the gradienter is arranged in the shell. A T-shaped hook groove is formed in the end, away from the shell, of the L-shaped hook body and used for allowing the hanging rod to penetrate through, a plurality of installation grooves are formed in the outer wall of the shell and distributed in the circumferential direction of the shell at intervals, the number of the gradienters is the same as that of the installation grooves, the gradienters and the installation grooves are in one-to-one correspondence, and the gradienters are embedded in the installation grooves. The multiple gradienter bodies are connected to the outer wall of the shell, when the L-shaped hook bodies are adjusted, the gradienter bodies do not need to be adjusted, constructors can directly observe the horizontal state of the fresh air ventilator conveniently, and the installation convenience of the fresh air ventilator is improved.

Description

Technical Field

[0001] This application relates to the technical field of fresh air systems, and in particular to a fresh air system that is easy to install. Background Technology

[0002] A fresh air system is an effective ventilation, air purification, and energy recovery device that circulates indoor and outdoor air. On the one hand, it expels polluted indoor air to the outside, and on the other hand, it introduces fresh outdoor air into the room after sterilization, disinfection, and filtration, ensuring that the room is always filled with fresh and clean air.

[0003] Fresh air systems are generally installed using a ceiling-mounted method. After the initial installation, the level of the fresh air system needs to be adjusted to ensure that the condensate generated inside the fresh air system can be discharged along the preset flow channel inside the fresh air system, so as to avoid damage to the internal equipment of the fresh air system.

[0004] Currently, when adjusting the level, construction workers generally use tools such as laser levels to help determine whether the fresh air unit is level. If a deviation is found, they gradually adjust the tightness of the support bolts or change the length of the suspension rope. Adjusting the support bolts at different positions requires moving the laser level, which is cumbersome. Furthermore, the laser level is affected by the ground environment, which may affect the accuracy of the level. Summary of the Invention

[0005] To improve the ease of installation of fresh air units, this application provides a fresh air unit that is easy to install.

[0006] This application provides a new air purifier that is easy to install, using the following technical solution: A new type of air purifier that is easy to install includes a housing, an inspection cover, a level, and L-shaped hooks. The housing has an inspection port on one side along the vertical direction. The inspection cover is connected to the housing and covers the inspection port. The L-shaped hooks are connected to the outer wall of the housing. There are several L-shaped hooks, which are spaced apart along the circumference of the housing. The end of each L-shaped hook away from the housing has a hook groove, which is T-shaped and is used for a suspension rod to pass through. There are several mounting grooves on the outer wall of the housing, which are spaced apart along the circumference of the housing. The number of levels is the same as the number of mounting grooves and corresponds one-to-one. The levels are embedded in the mounting grooves.

[0007] By adopting the above technical solution, multiple levels are connected to the outer wall of the casing. When adjusting each L-shaped hook, there is no need to adjust the level, which makes it easier for construction personnel to directly observe the horizontal status of the fresh air unit and improves the convenience of fresh air unit installation.

[0008] Preferably, it further includes a fixed seat and a sliding seat. The fixed seat is connected to the outer shell. The number of sliding seats is the same as the number of L-shaped hooks and corresponds one-to-one. The sliding seats are slidably connected to the fixed seat. The sliding direction of the sliding seats is vertical. The L-shaped hooks are connected to the side of the sliding seats away from the outer shell.

[0009] By adopting the above technical solution, the L-shaped hook is connected to a vertically sliding base. The height of the L-shaped hook can be adjusted by sliding the base, thereby facilitating the adjustment of the air purifier's level and improving the ease of installation.

[0010] Preferably, the device further includes a lead screw and an adjusting rod. The number of lead screws is the same as the number of sliding seats and corresponds one-to-one. The lead screw is rotatably connected to the fixed seat. The rotation axis of the lead screw is parallel to the sliding direction of the sliding seat. The lead screw is threadedly connected to the sliding seat. The end of the lead screw near the inspection cover is coaxially provided with a first limiting hole. The first limiting hole has a hexagonal cross-section. One end of the adjusting rod is used to be embedded in the first limiting hole. The outer wall of the adjusting rod fits against the wall of the first limiting hole.

[0011] By adopting the above technical solution, when it is necessary to adjust the corresponding sliding seat, the adjusting rod is inserted into the first limiting hole of the corresponding lead screw, and the adjusting rod is rotated until the lead screw rotates. The lead screw is threadedly connected to the sliding seat, so that the sliding seat can slide in the vertical direction, thereby adjusting the height of the L-shaped hook body and adjusting the level of the fresh air unit, which improves the convenience of fresh air unit installation.

[0012] Preferably, the assembly further includes a transmission component, a first connecting rod, and a first resetting member. The transmission component includes pulleys and a belt body. The number of pulleys is the same as the number of lead screws and corresponds one-to-one. The pulleys are coaxially rotatably connected to a fixed base, and the rotation axis of the pulleys coincides with the rotation axis of the corresponding lead screw. The belt body is sleeved on the outer circumference of the pulleys. The number of the first connecting rods and the first resetting member is the same as the number of lead screws and corresponds one-to-one. The first limiting hole penetrates the lead screw along its axis. The pulleys are coaxially provided with a second limiting hole. The first connecting rod is coaxially slidably embedded in the first limiting hole. The end of the first connecting hole away from the inspection cover extends out of the first limiting hole and into the second limiting hole. The outer wall of the first connecting rod is in contact with the walls of the first and second limiting holes. The outer wall of the first connecting rod near the pulley is provided with a first annular groove. The first annular groove has a circular cross-section, and its wall is tangent to the outer wall of the first connecting rod. The first resetting member is connected between the first connecting rod and the lead screw, and the first resetting member causes the first annular groove to tend to be located within the first limiting hole.

[0013] By adopting the above technical solution, the first connecting rod is pushed to slide different distances by the adjusting rod, so as to achieve circumferential fixation or relative rotation of the lead screw and pulley, thereby realizing relative adjustment or overall adjustment of each L-shaped hook body, satisfying the adjustment of the level of the fresh air unit and the adjustment of the gap with the roof, and improving the convenience of fresh air unit installation.

[0014] Preferably, the outer wall of the adjusting rod is connected to an abutment ring. The two sides of the abutment ring along the axis of the adjusting rod are respectively used to abut against the end of the lead screw away from the pulley. The distances of the two sides of the abutment ring from the two ends of the lead screw along the axis of the abutment ring are not equal. When one end of the adjusting rod is embedded in the first limiting hole, the first ring groove is located in the first limiting hole. When the other end of the adjusting rod is embedded in the first limiting hole, the first ring groove is located in the second limiting hole.

[0015] By adopting the above technical solution, by embedding different ends of the adjusting rod into the first limiting hole, and the action of the abutment ring on the adjusting rod, the first connecting rod is pushed to slide different distances, thereby achieving circumferential fixation or relative rotation of the pulley and the lead screw, and improving the convenience of fresh air unit installation.

[0016] Preferably, it also includes a magnetic ring and a magnetic block, the magnetic block being fixedly connected to the end of the lead screw away from the pulley, the magnetic ring being embedded in the abutment ring, and the magnetic ring and the lead screw attracting each other.

[0017] By adopting the above technical solution, the magnetic ring and the lead screw attract each other, which can enhance the connection stability between the adjusting rod and the lead screw, improve the convenience of adjusting the level of the fresh air unit, and improve the convenience of installing the fresh air unit.

[0018] Preferably, the sliding seat includes a main body, a clamping block, a third reset member, and an unlocking block. The main body is slidably connected to the fixed seat, the clamping block is slidably connected to the main body, the sliding direction of the clamping block is perpendicular to the rotation axis of the lead screw, and the clamping block is used to abut against the lead screw. The third reset member is connected between the clamping block and the main body, and the third reset member causes the clamping block to tend to abut against the lead screw. The clamping block has a concave arc groove for threaded connection of the lead screw on the side near the lead screw along the sliding direction of the clamping block. The unlocking block is slidably connected to the main body, the sliding direction of the unlocking block is perpendicular to the rotation axis of the lead screw, and the unlocking block is used to abut against the clamping block.

[0019] By adopting the above technical solution, the clamping block is disengaged from the lead screw by the unlocking block, enabling rapid adjustment of the relative position of the sliding seat and the outer casing in the vertical direction. Observing the level, when the sliding seat moves to the designated position, the unlocking block is released, and the clamping block approaches the lead screw under the action of the third reset component, making the clamping block threadedly connected to the lead screw, thus achieving rapid adjustment of the sliding seat. Subsequently, the lead screw can be driven to rotate by the adjusting rod, and the lead screw is threadedly connected to the clamping block, thereby fine-tuning the position of the sliding seat to achieve precise adjustment of the sliding seat position.

[0020] Preferably, each of the sliding seats is provided with two clamping blocks, which are symmetrically distributed along the sliding direction of the clamping blocks. The number of the third reset members is the same as the number of clamping blocks and corresponds one-to-one. The unlocking block is located between the two clamping blocks. The end of the unlocking block near the clamping block is provided with a second chamfer on both sides along the sliding direction of the clamping block. The second chamfer is used to abut against the side of the clamping block near the other clamping block.

[0021] By adopting the above technical solution, the clamping block abuts against the lead screw from both sides, improving the stability of the threaded connection between the clamping block and the lead screw.

[0022] Preferably, it further includes a clamping member and a second resetting member. The clamping member includes a connecting plate and a contact block. The connecting plate is slidably connected to the housing. The sliding direction of the connecting plate is perpendicular to the rotation axis of the lead screw. The connecting plate is used to clamp against the outer wall of the lead screw. One end of the contact block is connected to the connecting plate, and the other end of the contact block is used to abut against the level. The second resetting member is connected between the connecting plate and the housing. The second resetting member causes the connecting plate to tend to clamp against the outer wall of the lead screw.

[0023] By adopting the above technical solution, when the level is embedded in the installation groove, the level abuts against the abutment block, pushing the connecting plate to slide away from the lead screw, releasing the lock on the lead screw, which facilitates the adjustment of the height of the L-shaped hook. After the installation is completed, the level is taken out, and the connecting plate abuts against the lead screw under the action of the elastic force of the second reset member, thereby locking the lead screw and improving the reliability of the fresh air unit installation.

[0024] Preferably, it also includes a friction block connected to the connecting plate, the friction block being used to press against the outer wall of the lead screw.

[0025] By adopting the above technical solution, the friction between the connecting plate and the lead screw is increased, thereby locking the connecting rod and preventing relative rotation of the lead screw after installation. This prevents relative sliding of the sliding seat, affecting the levelness of the fresh air unit and improving the reliability of the fresh air unit installation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By connecting multiple levels to the outer wall of the casing, it is not necessary to adjust the levels when adjusting each L-shaped hook, which makes it easy for construction personnel to directly observe the horizontal status of the fresh air unit and improves the convenience of fresh air unit installation; 2. When it is necessary to adjust the corresponding sliding seat, insert the adjusting rod into the first limiting hole of the corresponding lead screw, rotate the adjusting rod until the lead screw rotates, and the lead screw is threadedly connected to the sliding seat, so that the sliding seat can slide in the vertical direction, thereby adjusting the height of the L-shaped hook body, realizing the adjustment of the level of the fresh air unit, and improving the convenience of fresh air unit installation; 3. When the level is embedded in the mounting slot, the level abuts against the abutment block, pushing the connecting plate to slide away from the lead screw, releasing the lock on the lead screw, which facilitates the adjustment of the height of the L-shaped hook. After installation, the level is removed, and the connecting plate abuts against the lead screw under the action of the elastic force of the second reset piece, thereby locking the lead screw and improving the reliability of the fresh air unit installation. Attached Figure Description

[0027] Figure 1 This is a structural diagram of a fresh air system that is easy to install.

[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0029] Figure 3 This is a partial sectional view of the new air purifier, which is easy to install. It mainly shows the lead screw, the first connecting rod, and the first reset component.

[0030] Figure 4 This is a partial sectional view of a fresh air unit that is easy to install, mainly showing the sliding base.

[0031] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0032] Figure 6 This is a partial sectional view of a new air purifier for easy installation, mainly showing the mounting base, level, and locking components.

[0033] Figure 7 This is a partial sectional view of a fresh air unit that is easy to install, mainly showing the lead screw and locking assembly.

[0034] Explanation of reference numerals in the attached figures: 1. Fresh air unit body; 11. Outer casing; 111. Inspection port; 112. Mounting base; 1121. Mounting groove; 1122. Observation port; 1123. First connecting groove; 1124. Second connecting groove; 1125. Groove; 12. Inspection cover; 2. Level; 3. Installation mechanism; 31. Magnetic ring; 32. Magnetic block; 33. L-shaped hook body; 331. Hook groove; 332. Stop block; 34. Fixing seat; 341. Fixing plate; 3411. Receiving cavity; 342. Fixing column; 3421. Sliding groove; 3422. Third connecting groove; 35. Sliding seat; 351. Main body; 3511. Receiving groove; 3512. Connecting hole; 3513. Unlocking groove; 352. Clamping block; 3521. Concave arc groove; 3522. Third chamfer; 353. Third reset component; 354. Unlocking block; 3541. Second chamfer; 36. Wire 361. Rod; 362. First limiting hole; 363. First limiting groove; 37. Inserted groove; 37. Adjusting rod; 371. Abutment ring; 3711. Cavity; 38. Transmission assembly; 381. Pulley; 3811. Second limiting hole; 382. Belt body; 39. First connecting rod; 391. First annular groove; 392. First limiting ring; 310. First reset component; 311. Locking assembly; 3111. Abutment component; 31111. Connecting plate; 31112. Abutment block; 311121. First chamfer; 3112. Second reset component; 3113. Friction block. Detailed Implementation

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] Reference Figure 1 This application discloses an easy-to-install fresh air unit, including a fresh air unit body 1. The fresh air unit body 1 includes a housing 11 and a maintenance cover 12. The housing 11 has a maintenance port 111 on one side along the vertical direction. The maintenance cover 12 is connected to the housing 11 and covers the maintenance port 111. In this embodiment, the maintenance cover 12 is rotatably connected to the housing 11 via a hinge, and the rotation axis of the maintenance cover 12 is parallel to the length direction of the housing 11.

[0037] Reference Figure 1 and Figure 2A new air purifier that is easy to install also includes an installation mechanism 3. The installation mechanism 3 includes a fixing base 34. The fixing base 34 includes a fixing plate 341 and a fixing column 342. The fixing plate 341 is fixedly connected to the side surface of the outer shell 11 away from the inspection cover 12. The side walls of the fixing plate 341 along the width direction of the outer shell are flush with the outer wall of the outer shell 11. One end of the fixing column 342 is fixedly connected to the side of the fixing plate 341 near the inspection cover 12. There are four fixing columns 342. The four fixing columns 342 are divided into two groups. The two groups of fixing columns 342 are symmetrically distributed along the length direction of the outer shell 11. The two fixing columns 342 in the same group are symmetrically distributed along the width direction of the outer shell 11. The side surface of the fixing column 342 near the other group of fixing columns 342 is in contact with the outer wall of the outer shell 11. The side surface of the fixing column 342 away from the other group of fixing columns 342 is flush with the side wall of the fixing plate 341 along the length direction of the outer shell. The side surface of the fixing column 342 away from the other group of fixing columns 342 is flush with the side wall of the fixing plate 341.

[0038] Reference Figure 2 The mounting mechanism 3 includes an L-shaped hook 33 and a sliding seat 35. The number of sliding seats 35 and L-shaped hooks 33 is the same as the number of mounting columns 342 and they correspond one-to-one. The sliding seat 35 includes a main body 351, which is slidably embedded in the sliding groove 3421. The sliding direction of the main body 351 is vertical, and the side wall of the main body 351 is in contact with the groove wall of the sliding groove 3421. In this embodiment, the sliding groove 3421 has a dovetail-shaped cross-section. The L-shaped hook 33 is fixedly connected to the side of the sliding seat 35 away from the outer shell 11. The end of the L-shaped hook 33 away from the sliding seat 35 is provided with a hook groove 331. The hook groove 331 is T-shaped and is used for the rod to pass through. Two stops 332 are fixedly connected to the end of the L-shaped hook body 33 near the hook groove 331 and the side near the inspection cover 12. The two stops 332 are located on both sides of the hook groove 331 in the horizontal direction.

[0039] Reference Figure 3 and Figure 4The installation mechanism 3 also includes lead screws 36, the number of which is the same as the number of main bodies 351 and corresponds one-to-one. The lead screws 36 are rotatably embedded in the slide groove 3421, and the rotation axis of the lead screws 36 is parallel to the sliding direction of the sliding seat 35. The fixing plate 341 is provided with a receiving cavity 3411. The end of the lead screw 36 away from the inspection cover 12 passes through the groove wall of the slide groove 3421 and extends into the receiving cavity 3411. The side of the main body 351 near the bottom of the slide groove 3421 has a receiving groove 3511. The main body 351 is provided with a connecting hole 3512, which passes through the main body 351 along the sliding direction of the main body 351 and is connected to the receiving groove 3511. The lead screws 36 are embedded in the connecting hole 3512. The sliding seat 35 also includes a clamping block 352, a third reset member 353, and an unlocking block 354. The clamping block 352 is slidably embedded in the receiving groove 3511, and the sliding direction of the clamping block 352 is parallel to the width direction of the outer shell 11. The clamping block 352 is used to abut against the lead screw 36. The side surface of the clamping block 352 near the lead screw 36 is provided with a concave arc groove 3521 for threaded connection of the lead screw 36. There are two clamping blocks 352, which are symmetrically distributed along the sliding direction of the clamping block 352. The number of third reset members 353 is the same as the number of clamping blocks 352 and they correspond one-to-one. The third reset members 353 are connected between the clamping blocks 352 and the main body 351, and the third reset members 353 make the clamping blocks 352 tend to abut against the lead screw 36. In this embodiment, the third reset member 353 is a spring. One end of the third reset member 353 is connected to one side of the groove wall of the receiving groove 3511 along the sliding direction of the clamping block 352, and the other end of the third reset member 353 is connected to the end of the clamping block 352 away from the other clamping block 352. The receiving groove 3511 has an unlocking groove 3513 on the side wall away from the bottom of the sliding groove 3421. The unlocking block 354 is slidably embedded in the unlocking groove 3513. The sliding direction of the unlocking block 354 is parallel to the length direction of the outer shell 11. The unlocking block 354 is located between two clamping blocks 352. The clamping block 352 has a third chamfer 3522 on the side of the clamping block 352 closest to the other clamping block 352. The third chamfer 3522 is located on the side of the clamping block 352 closest to the unlocking groove 3513. The end of the unlocking block 354 that extends into the receiving groove 3511 has a second chamfer 3541 on both sides along the sliding direction of the clamping block 352. The second chamfer 3541 is used to abut against the third chamfer 3522.

[0040] The mounting mechanism 3 also includes a transmission assembly 38, a first connecting rod 39, and a first reset member 310. The number of the first connecting rods 39 and the first reset member 310 is the same as the number of lead screws 36 and they correspond one-to-one. The transmission assembly 38 is embedded in the receiving cavity 3411. The transmission assembly 38 includes pulleys 381 and belt bodies 382. The number of pulleys 381 is the same as the number of lead screws 36 and they correspond one-to-one. The pulleys 381 are rotatably embedded in the receiving cavity 3411, and the rotation axis of the pulleys 381 coincides with the rotation axis of the corresponding lead screw 36. The belt body 382 is sleeved on the outer circumference of the pulleys 381. The end of the lead screw 36 away from the receiving cavity 3411 is coaxially provided with a first limiting hole 361, which penetrates the lead screw 36 along its axis. The pulleys 381 are coaxially provided with a second limiting hole 3811, which penetrates the pulley 381 along its axis. The first connecting rod 39 is slidably embedded in the first limiting hole 361. One end of the first connecting rod 39 near the receiving cavity 3411 is used to embed in the second limiting hole 3811. The outer wall of the first connecting rod 39 is in contact with the walls of the first limiting hole 361 and the second limiting hole 3811. In this embodiment, both the first limiting hole 361 and the second limiting hole 3811 have a regular hexagonal cross-section. A first annular groove 391 is provided on the outer periphery of the first connecting rod 39 near the pulley 381. The cross-section of the groove wall of the first annular groove 391 is circular, and the groove wall is tangent to the outer wall of the first connecting rod 39. A first limiting groove 362 is provided at the wall of the first limiting hole 361. A first limiting ring 392 is coaxially fixedly connected to the outer wall of the first connecting rod 39. The first limiting ring 392 is slidably embedded in the first limiting groove 362. A first reset member 310 is connected between the first limiting ring 392 and the lead screw 36. The first reset member 310 makes the first ring groove 391 tend to be located within the first limiting hole 361. In this embodiment, the first reset member 310 is a spring. The first reset member 310 is sleeved on the outer periphery of the first connecting rod 39. One end of the first reset member 310 is connected to the side surface of the first limiting ring 392 near the receiving cavity 3411, and the other end of the first reset member 310 is connected to the side wall of the first limiting groove 362 near the receiving cavity 3411.

[0041] Reference Figure 5The mounting mechanism 3 also includes an adjusting rod 37, a magnetic ring 31, and a magnetic block 32. One end of the adjusting rod 37 is used to embed into the end of the first limiting hole 361 away from the pulley 381, and the outer wall of the adjusting rod 37 is in contact with the wall of the first limiting hole 361. An abutment ring 371 is coaxially fixedly connected to the outer wall of the adjusting rod 37. The two sides of the abutment ring 371 along the axial direction of the adjusting rod 37 are used to abut against the end of the lead screw 36 away from the pulley 381. The distances of the two sides of the abutment ring 371 along the axial direction of the adjusting rod 37 from the two ends of the lead screw 36 are not equal. In this embodiment, when one end of the adjusting rod 37 is embedded in the first limiting hole 361, the first annular groove 391 is located in the first limiting hole 361; when the other end of the adjusting rod 37 is embedded in the first limiting hole 361, the first annular groove 391 is located in the second limiting hole 3811. The lead screw 36 has several slots 363 near the abutment ring 371, which are spaced apart around the rotation axis of the lead screw 36. In this embodiment, there are six slots 363, which are evenly distributed around the rotation axis of the lead screw 36. The number of magnetic blocks 32 is the same as the number of slots 363 and corresponds one-to-one. The magnetic blocks 32 are embedded in the slots 363. The abutment ring 371 has a cavity 3711 coaxially arranged inside, and the magnetic ring 31 is embedded in the cavity 3711. The magnetic blocks 32 attract each other.

[0042] Reference Figure 1 and Figure 6 A new type of easy-to-install air purifier also includes a level 2. A mounting base 112 is fixedly connected to the outer wall of the housing 11. Four mounting bases 112 are provided, with one mounting base 112 between every two adjacent fixing posts 342. A mounting groove 1121 is provided at one end along the horizontal direction. An observation port 1122 is provided on the side wall of the mounting groove 1121 away from the housing 11, penetrating the mounting base 112. The number of levels 2 is the same as the number of mounting grooves 1121 and corresponds one-to-one. The levels 2 are embedded in the mounting grooves 1121, with the sidewalls of the levels 2 fitting snugly against the groove walls of the mounting grooves 1121.

[0043] Reference Figure 6 and Figure 7The mounting assembly also includes a locking assembly 311. There are two locking assemblies 311, which are located on both sides of the housing 11 along the length of the housing 11. Each locking assembly 311 includes a clamping member 3111, a second reset member 3112, and a friction block 3113. The mounting base 112 located on both sides of the housing 11 along the length of the housing 11 is provided with a first connecting groove 1123. The clamping member 3111 includes a connecting plate 31111 and abutting block 31112. The connecting plate 31111 is slidably embedded in the first connecting groove 1123. The sliding direction of the connecting plate 31111 is horizontal, and the side wall of the connecting plate 31111 is in contact with the groove wall of the first connecting groove 1123. A third connecting groove 3422 is provided on the side surface of the fixed column 342 near the other fixed column 342 in the same group. The third connecting groove 3422 is connected to the sliding groove 3421. The two ends of the connecting plate 31111 pass through the third connecting grooves 3422 of the two fixed columns 342 in the same group and extend into the sliding groove 3421. The connecting plate 31111 is located on the side of the lead screw 36 near the outer shell 11. The friction block 3113 is fixedly connected to the side surface of the connecting plate 31111 away from the outer shell 11. The friction block 3113 is used to press against the outer wall of the lead screw 36. The number of friction blocks 3113 is the same as the number of lead screws 36 and corresponds one-to-one. The four friction blocks 3113 are divided into two groups. The two groups of friction blocks 3113 correspond to the two connecting plates 31111. The two friction blocks 3113 in the same group are symmetrically distributed along the length of the connecting plate 31111. A second connecting groove 1124 is provided on the groove wall of the first connecting groove 1123 near the mounting groove 1121. The second connecting groove 1124 is connected to the mounting groove 1121. The abutment block 31112 is slidably embedded in the second connecting groove 1124. One end of the abutment block 31112 is fixedly connected to the surface of the connecting plate 31111 away from the outer shell 11, and the other end of the abutment block 31112 is used to extend into the mounting groove 1121. A first chamfer 311121 is provided on the end of the abutment block 31112 away from the connecting plate 31111. The first chamfer 311121 is located on the side of the abutment block 31112 near the opening of the mounting groove 1121. The first chamfer 311121 is used to abut against the surface of the level 2 near the second connecting groove 1124. The first connecting groove 1123 has two grooves 1125 on one side wall near the mounting groove 1121. The two grooves 1125 are symmetrically distributed along the length of the connecting plate 31111. The number of second reset members 3112 is the same as the number of grooves 1125 and they correspond one-to-one. The second reset members 3112 are connected between the mounting base 112 and the connecting plate 31111. The second reset members 3112 cause the friction block 3113 to tend to press against the outer wall of the lead screw 36. In this embodiment, the second reset member 3112 is a spring. One end of the second reset member 3112 is connected to the bottom of the groove 1125, and the other end of the second reset member 3112 is connected to the surface of the connecting plate 31111 near the mounting groove 1121.

[0044] The implementation principle of a new air purifier that is easy to install according to the present application is as follows: When installing the new air purifier, the level 2 is embedded into the four mounting slots 1121 respectively. The level 2 abuts against the first chamfer 311121, pushes the abutment block 31112 to slide, drives the connecting plate 31111 to slide, and drives the friction block 3113 away from the lead screw 36.

[0045] When the boom passes through the hook groove 331 and the fixing nut is threaded onto the boom and abuts against the lower end of the L-shaped hook 33, observe the state of the level 2 through the observation port 1122, and adjust the four L-shaped hooks 33 according to the level 2. When it is necessary to adjust the relative height of the sliding seat 35 significantly, press the unlocking block 354, the second chamfer 3541 and the third chamfer 3522 abut against each other, push the two clamping blocks 352 away from each other, so that the lead screw 36 separates from the concave arc groove 3521, adjust the relative position of the sliding seat 35 and the outer shell 11, after adjusting to a certain range, release the unlocking block 354, and the two clamping blocks 352 clamp the lead screw 36 under the action of the elastic force of the third reset member 353. One end of the adjusting rod 37 is inserted into the first limiting hole 361, and the abutting ring 371 abuts against the lead screw 36. The magnetic ring 31 and the magnetic block 32 attract each other. The adjusting rod 37 pushes the first connecting rod 39 to slide, so that the first ring groove 391 is located in the second limiting hole 3811. Rotating the adjusting rod 37 drives the lead screw 36 to rotate. The lead screw 36 is threadedly connected to the concave arc groove 3521, which drives the sliding seat 35 to slide, thereby realizing the fine adjustment of the relative position of the sliding seat 35 and the outer shell 11.

[0046] The other end of the adjusting rod 37 is inserted into the first limiting hole 361, and the abutment ring 371 abuts against the lead screw 36. The adjusting rod 37 pushes the first connecting rod 39 to slide, so that the first annular groove 391 is located in the first limiting hole 361. Rotating the adjusting rod 37 drives the lead screw 36 to rotate, which in turn drives the pulley 381 to rotate through the first connecting rod 39. This drives the other pulleys 381 to rotate through the belt body 382, ​​and finally drives the lead screw 36 to rotate through the first connecting rod 39, thus achieving overall adjustment of the outer casing 11. After installation, the level 2 is removed. Under the action of the elastic force of the second reset member 3112, the connecting plate 31111 slides close to the lead screw 36, causing the friction block 3113 to press against the outer wall of the lead screw 36, thereby limiting the lead screw 36.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fresh air system that is easy to install, characterized in that: The system includes a housing (11), a maintenance cover (12), a level (2), and an L-shaped hook (33). The housing (11) has a maintenance opening (111) on one side along the vertical direction. The maintenance cover (12) is connected to the housing (11) and covers the maintenance opening (111). The L-shaped hook (33) is connected to the outer wall of the housing (11). Several L-shaped hooks (33) are provided. These L-shaped hooks (33) are spaced apart circumferentially along the housing (11). The L-shaped hooks (33) are located away from each other. One end of the outer shell (11) is provided with a hook groove (331); the hook groove (331) is T-shaped; the hook groove (331) is used for the rod to pass through; the outer wall of the outer shell (11) is provided with an installation groove (1121); there are several installation grooves (1121); several installation grooves (1121) are distributed at intervals along the circumference of the outer shell (11); the number of level instruments (2) is the same as the number of installation grooves (1121) and corresponds one-to-one; the level instruments (2) are embedded in the installation grooves (1121).

2. The easy-to-install fresh air unit according to claim 1, characterized in that: It also includes a fixed seat (34) and a sliding seat (35); the fixed seat (34) is connected to the outer shell (11); the number of sliding seats (35) is the same as the number of L-shaped hooks (33) and they correspond one-to-one; the sliding seat (35) is slidably connected to the fixed seat (34); the sliding direction of the sliding seat (35) is vertical; the L-shaped hook (33) is connected to the side of the sliding seat (35) away from the outer shell (11).

3. The easy-to-install fresh air unit according to claim 2, characterized in that: It also includes lead screws (36) and adjusting rods (37); the number of lead screws (36) is the same as the number of sliding seats (35) and they correspond one-to-one; the lead screws (36) are rotatably connected to the fixed seat (34); the rotation axis of the lead screws (36) is parallel to the sliding direction of the sliding seat (35); the lead screws (36) and the sliding seats (35) are threadedly connected; the end of the lead screw (36) near the inspection cover (12) is coaxially provided with a first limiting hole (361); the first limiting hole (361) has a hexagonal cross section; one end of the adjusting rod (37) is used to be embedded in the first limiting hole (361); the outer wall of the adjusting rod (37) is in contact with the hole wall of the first limiting hole (361).

4. The easy-to-install fresh air unit according to claim 3, characterized in that: It also includes a transmission assembly (38), a first connecting rod (39), and a first reset member (310); the transmission assembly (38) includes pulleys (381) and belt bodies (382); the number of pulleys (381) is the same as the number of lead screws (36) and they correspond one-to-one; the pulleys (381) are coaxially rotatably connected to the fixed base (34); the rotation axis of the pulleys (381) coincides with the rotation axis of the corresponding lead screws (36); the belt body (382) is sleeved on the outer circumference of the pulleys (381); the number of the first connecting rods (39) and the first reset member (310) is the same as the number of lead screws (36) and they correspond one-to-one; the first limiting hole (361) passes through the lead screw (36) along the axis of the lead screw (36); the pulleys (381) are coaxially provided with a second limiting hole (3811); the first connecting rod (39) is coaxially slidably embedded in the first limiting hole (361); the end of the first connecting hole away from the inspection cover (12) extends out of the first limiting hole (361) and then into the second limiting hole (3811); the outer wall of the first connecting rod (39) is in contact with the hole walls of the first limiting hole (361) and the second limiting hole (3811); the outer wall of the first connecting rod (39) near the pulley (381) is provided with a first annular groove (391); the cross section of the first annular groove (391) is circular; the groove wall of the first annular groove (391) is tangent to the outer wall of the first connecting rod (39); the first reset member (310) is connected between the first connecting rod (39) and the lead screw (36); the first reset member (310) makes the first annular groove (391) tend to be located in the first limiting hole (361).

5. The easy-to-install fresh air unit according to claim 4, characterized in that: The outer wall of the adjusting rod (37) is connected to an abutment ring (371); the two sides of the abutment ring (371) along the axis of the adjusting rod (37) are respectively used to abut against the end of the lead screw (36) away from the pulley (381); the distances of the two sides of the abutment ring (371) along the axis of the abutment ring (371) from the two ends of the lead screw (36) are not equal; when one end of the adjusting rod (37) is embedded in the first limiting hole (361), the first ring groove (391) is located in the first limiting hole (361); when the other end of the adjusting rod (37) is embedded in the first limiting hole (361), the first ring groove (391) is located in the second limiting hole (3811).

6. The easy-to-install fresh air unit according to claim 5, characterized in that: It also includes a magnetic ring (31) and a magnetic block (32); the magnetic block (32) is fixedly connected to the end of the lead screw (36) away from the pulley (381); the magnetic ring (31) is embedded in the abutment ring (371); the magnetic ring (31) and the lead screw (36) attract each other.

7. The easy-to-install fresh air unit according to claim 3, characterized in that: The sliding seat (35) includes a main body (351), a clamping block (352), a third reset component (353), and an unlocking block (354); the main body (351) is slidably connected to the fixed seat (34); the clamping block (352) is slidably connected to the main body (351); the sliding direction of the clamping block (352) is perpendicular to the rotation axis of the lead screw (36); the clamping block (352) is used to abut against the lead screw (36); the third reset component (353) is connected between the clamping block (352) and the main body (351). The third reset member (353) causes the clamping block (352) to tend to abut against the lead screw (36); the clamping block (352) is provided with a concave arc groove (3521) for threaded connection of the lead screw (36) on the side of the clamping block (352) near the lead screw (36) along the sliding direction of the clamping block (352); the unlocking block (354) is slidably connected to the body (351); the sliding direction of the unlocking block (354) is perpendicular to the rotation axis of the lead screw (36); the unlocking block (354) is used to abut against the clamping block (352).

8. The easy-to-install fresh air unit according to claim 7, characterized in that: Each of the sliding seats (35) is provided with two clamping blocks (352); the two clamping blocks (352) are symmetrically distributed along the sliding direction of the clamping blocks (352); the number of the third reset members (353) is the same as the number of clamping blocks (352) and corresponds one-to-one; the unlocking block (354) is located between the two clamping blocks (352); the unlocking block (354) is provided with a second chamfer (3541) on both sides along the sliding direction of the clamping blocks (352) at one end near the clamping block (352); the second chamfer (3541) is used to abut against the side of the clamping block (352) near the other clamping block (352).

9. The easy-to-install fresh air unit according to claim 3, characterized in that: It also includes a clamping member (3111) and a second resetting member (3112); the clamping member (3111) includes a connecting plate (31111) and an abutting block (31112); the connecting plate (31111) is slidably connected to the outer shell (11); the sliding direction of the connecting plate (31111) is perpendicular to the rotation axis of the lead screw (36); the connecting plate (31111) is used to clamp against the outer wall of the lead screw (36); one end of the abutting block (31112) is connected to the connecting plate (31111); the other end of the abutting block (31112) is used to abut against the level (2); the second resetting member (3112) is connected between the connecting plate (31111) and the outer shell (11); the second resetting member (3112) makes the connecting plate (31111) tend to clamp against the outer wall of the lead screw (36).

10. The easy-to-install fresh air unit according to claim 9, characterized in that: It also includes a friction block (3113); the friction block (3113) is connected to the connecting plate (31111); the friction block (3113) is used to press against the outer wall of the lead screw (36).

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