All fresh air air handling unit performance test device

Abstract

The invention discloses a full fresh air air handling unit performance test device, and belongs to the technical field of building environment and equipment engineering, the full fresh air air handling unit performance test device comprises a test device body, the lower end of the test device body is fixedly connected with a support, and the lower end of the support is provided with a plurality of uniformly distributed damping assemblies; the full fresh air air handling unit performance testing device comprises a testing device body, a positioning frame is fixedly connected to an air inlet in the side end of the testing device body, a filter screen is slidably installed between the inner walls of the positioning frame, and a cleaning assembly is arranged at the side end of the positioning frame. Through the arrangement of the cleaning assembly, a worker can regularly clean the surface of the filter screen through the cleaning assembly, dust and mosquitoes accumulated at the air opening and the filter screen are swept away, the subsequent heat exchange effect and the ventilation effect are enhanced, meanwhile, the surface of the filter screen can be sterilized, secondary pollution is not likely to happen when air passes through the filter screen, and the service life of the filter screen is prolonged. And the air cleanliness is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of building environment and equipment engineering, and more specifically to a performance test device for a fresh air handling unit. Background Art

[0002] The fresh air air handling unit performance test device is a device used to test and evaluate the performance of fresh air air handling units. This device usually includes the following components: Test room: used to simulate the actual working environment and provide the necessary temperature, humidity and airflow conditions; Sensors and measuring instruments: used to measure key parameters such as air flow, temperature, humidity, etc. to ensure the accuracy of the data; Control system: automatically adjusts the environmental parameters in the test room to ensure the consistency of the test conditions; Data acquisition and processing system: records and analyzes the test data and generates performance reports.

[0003] The principle of the test device is based on environmental simulation and sensor measurement technology. The actual working environment is simulated by controlling the environmental parameters of the test room, such as temperature, humidity and air flow speed. The sensors monitor the key parameters in real time and transmit the data to the control system for processing and analysis.

[0004] However, after long-term use, dust and mosquitoes will accumulate on the vents and filters of the existing fresh air air handling unit performance test device, which can easily affect the heat exchange and ventilation effects, and may also cause air pollution. At the same time, the air handling unit will vibrate during operation, and the gaps between components are prone to loosening, resulting in the failure of the thermal insulation effect. Therefore, this plan proposes a fresh air air handling unit performance test device. Summary of the invention

[0005] 1. Technical problems to be solved: In view of the problems existing in the prior art, the purpose of the present invention is to provide a performance test device for a fresh air air handling unit. By adding a cleaning component to the filter at the air outlet of the main body of the performance test device for a fresh air air handling unit, personnel can regularly clean the surface of the filter through the cleaning component to remove the dust and mosquitoes accumulated on the air outlet and the filter, thereby enhancing the subsequent heat exchange effect and ventilation effect. At the same time, the surface of the filter can also be sterilized, so that the subsequent air is not easily susceptible to secondary pollution when passing through, thereby enhancing the cleanliness of the air, and under the action of the shock-absorbing component, the entire body of the test device can also be shock-absorbing, thereby avoiding the phenomenon that the gap between the internal components of the test device body is easy to loosen due to vibration factors and the insulation effect fails, thereby achieving the purpose of shock-absorbing control, and under the effect of the reduction of vibration force, the noise generated by the overall operation is also correspondingly weakened, ensuring long-term stable operation.

[0006] 2. Technical solution: To solve the above problems, the present invention adopts the following technical solutions.

[0007] A performance test device for a fresh air handling unit comprises a test device body, a bracket is fixedly connected to the lower end of the test device body, a plurality of evenly distributed shock absorbing components are installed at the lower end of the bracket, a positioning frame is fixedly connected to the air inlet at the side end of the test device body, a filter is slidably installed between the inner walls of the positioning frame, and a cleaning component is provided at the side end of the positioning frame.

[0008] A further improvement is that the shock absorbing assembly includes a positioning platform installed at multiple locations on the lower end of the bracket, a buffer component 1 is provided on the lower side of the positioning platform, a rubber support is provided on the lower side of the buffer component 1, a buffer component 2 is installed between the buffer component 1 and the inner wall of the rubber support, a plurality of mutually superimposed high-damping seismic isolation rubber pads are fixedly connected between the buffer component 1 and the inner wall of the rubber support, the high-damping seismic isolation rubber pad is sleeved on the outer side of the buffer component 2, and a protective sleeve is fixedly connected to the outer end of the high-damping seismic isolation rubber pad.

[0009] A further improvement is that the buffer component 1 includes a connecting platform provided on the lower side of the positioning platform, a receiving groove 1 is provided at the upper end of the connecting platform, a buffer groove is provided at the side end of the connecting platform, the buffer groove and the receiving groove 1 are connected to each other, a capsule is installed between the inner walls of the receiving groove 1, and a shock-absorbing spring 1 is fixedly connected between the central axis position of the connecting platform and the inner wall of the positioning platform.

[0010] A further improvement is that the second buffer component includes a damping rubber sleeve fixedly connected to the inner bottom end of the rubber support, a damper is installed on the inner bottom end of the damping rubber sleeve, the top surface of the damper is fixedly connected to the bottom surface of the first buffer component, a shock-absorbing spring 2 is fixedly connected between the damper and the inner wall of the first buffer component, and the shock-absorbing spring 2 is located on the outside of the damper.

[0011] A further improvement is that a slide groove is provided at the side end of the positioning frame, a positioning bolt is inserted at the upper end of one side of the slide groove, a built-in pull groove is provided at the side end of the filter, a positioning groove is provided at the upper end of one side of the filter, and the positioning groove and the positioning bolt correspond to each other.

[0012] A further improvement is that: the cleaning assembly comprises a liquid-filling part installed at the side end of the positioning frame, and a cleaning part is slidably installed between the inner walls of the liquid-filling part, wherein; The liquid replenishing part includes a liquid storage tank fixedly connected to the side end of the positioning frame, a liquid replenishing groove for accommodating the cleaning part is opened on the right side wall of the liquid storage tank, a sliding groove 2 for driving the cleaning part to slide is opened on the rear inner wall of the liquid storage tank, and a sealing cover is installed on the upper end of the liquid storage tank.

[0013] A further improvement is that a second receiving groove is provided on the inner wall of the top side of the liquid refilling groove, a liquid refilling cylinder is fixedly connected between the inner walls of the second receiving groove, the bottom side of the liquid refilling cylinder is made of elastic material, and a plurality of evenly distributed liquid seepage holes are provided on the bottom, a micro lifting pump is installed on the inner bottom of the liquid storage tank, and a lifting pipe on one side of the micro lifting pump is located on the upper side of the second receiving groove.

[0014] A further improvement is that the cleaning part includes a connecting frame provided between the inner walls of the liquid storage tank, a placement groove is provided at the side end of the connecting frame, a fiber cotton pad is embedded between the inner walls of the placement groove, a slider is fixedly connected to the rear end of the connecting frame, the slider is slidably connected to the slide groove 2, the left side of the connecting frame is fixedly connected to a shell 1, the shell is set on the outside of the fiber cotton pad, a plurality of evenly distributed cleaning brushes are embedded in the rear side end of the shell 1, one end of the cleaning brush is in contact with the fiber cotton pad, a handle is fixedly connected to the rear end of the shell 1, and a shell 2 is fixedly connected to the right end of the connecting frame, the shell 2 is set on the other side of the fiber cotton pad, a through hole is provided at the upper end of the shell 2, and a sealing film is installed between the inner walls of the through hole.

[0015] A further improvement is that the cleaning brush is made of capillary fiber material, and the sealing film is made of the principle of heart valve.

[0016] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is reasonably designed. By adding a cleaning component to the filter at the air outlet of the fresh air air handling unit performance test device body, personnel can regularly clean the filter surface through the cleaning component to sweep away the dust and mosquitoes accumulated on the air outlet and the filter, thereby enhancing the subsequent heat exchange effect and ventilation effect. At the same time, the filter surface can also be sterilized, which makes it less susceptible to secondary pollution when subsequent air passes through, thereby enhancing the cleanliness of the air, and under the action of the shock-absorbing component, the test device body as a whole can also be shock-absorbing, thereby avoiding the phenomenon that the gap between internal components of the test device body is easy to loosen due to vibration factors and the thermal insulation effect fails, thereby achieving the purpose of shock-absorbing control, and under the action of the reduced vibration force, the noise generated by the overall operation itself is also correspondingly weakened, ensuring long-term stable operation.

[0017] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2-4 It is a structural schematic diagram of the shock absorbing assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the cleaning component of the present invention; Figure 6 It is a schematic diagram of the explosion structure of the cleaning component of the present invention; Figure 7-8 It is a structural schematic diagram of the liquid-refilling part of the present invention; Fig. 9 It is a schematic diagram of the explosion structure of the cleaning piece of the present invention.

[0019] Description of the numbers in the figure: 1. Test device body; 2. Bracket; 3. Shock-absorbing assembly; 31. Positioning table; 33. A buffer member; 331. A connection platform; 332. A receiving groove; 333. A buffer groove; 334. A capsule; 335. A shock-absorbing spring; 34. Rubber bearing; 35. Buffer part 2; 351. Damping rubber sleeve; 352. Damper; 353. Shock-absorbing spring 2; 36. High damping seismic isolation rubber pad; 37. Protective cover; 4. Positioning frame; 41. Slideway 1; 42. Positioning bolt; 5. Filter screen; 51. Built-in groove; 52. Positioning groove; 6. Cleaning assembly; 61. Liquid refilling part; 611. Liquid storage tank; 612. Liquid refilling tank; 613. Cover; 614. Second slideway; 615. Second receiving tank; 616. Liquid refilling cylinder; 617. Micro lift pump; 62. Cleaning part; 621. Connecting frame; 622. Mounting groove; 623. Fiber cotton pad; 624. Sliding block; 625. Shell 1; 626. Cleaning brush; 627. Handle; 628. Shell 2; 629. Sealing film. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0023] See also Figure 1-Figure 9 A performance test device for a fresh air handling unit comprises a test device body 1, a bracket 2 is fixedly connected to the lower end of the test device body 1, a plurality of evenly distributed shock absorbing components 3 are installed at the lower end of the bracket 2, a positioning frame 4 is fixedly connected to the air inlet at the side end of the test device body 1, a filter screen 5 is slidably installed between the inner walls of the positioning frame 4, and a cleaning component 6 is provided at the side end of the positioning frame 4.

[0024] During use of this solution, in order to avoid the prior art that dust and mosquitoes will accumulate on the air outlet and filter screen after the fresh air air handling unit performance test device is used for a long time, which is easy to affect the heat exchange effect and ventilation effect, and may also cause air pollution, and at the same time, the air handling unit will vibrate during operation, and the gap between components is easy to loosen, thereby causing the failure of the thermal insulation effect. In this embodiment, a cleaning component 6 is installed at the filter screen of the air outlet of the fresh air air handling unit performance test device body, so that personnel can regularly clean the filter screen surface through the cleaning component 6, and the air outlet and The dust and mosquitoes accumulated on the filter are swept away, thereby enhancing the subsequent heat exchange and ventilation effects. At the same time, the surface of the filter can be sterilized, which makes it less susceptible to secondary pollution when the subsequent air passes through, thereby enhancing the cleanliness of the air. Under the action of the shock-absorbing component 3, the entire test device body 1 can also be shock-absorbing, thereby avoiding the loosening of the internal component gaps of the test device body 1 and the failure of the thermal insulation effect due to vibration factors, thereby achieving the purpose of shock-absorbing control. Under the action of the reduced vibration force, the noise generated by the overall operation is also correspondingly reduced, ensuring long-term stable operation.

[0025] See also Figure 1-Figure 2 The shock absorbing assembly 3 includes a positioning platform 31 installed at multiple locations on the lower end of the bracket 2, a buffer member 33 is provided on the lower side of the positioning platform 31, a rubber support 34 is provided on the lower side of the buffer member 33, a buffer member 35 is installed between the buffer member 33 and the inner wall of the rubber support 34, and a plurality of mutually superimposed high-damping seismic isolation rubber pads 36 are fixedly connected between the buffer member 33 and the inner wall of the rubber support 34, the high-damping seismic isolation rubber pad 36 is sleeved on the outer side of the buffer member 35, and a protective sleeve 37 is fixedly connected to the outer end of the high-damping seismic isolation rubber pad 36.

[0026] When the present solution is in use, by installing a plurality of shock absorbing components 3 at the lower end of the test device body 1, when the test device body 1 vibrates to a certain extent during operation, its high damping seismic isolation rubber pad 36 can dissipate or absorb the energy generated by the vibration of the test device body 1 under friction, bending (or shearing, torsion), elastoplastic (or viscoelastic) hysteresis deformation, so as to reduce the vibration response of the test device body 1, thereby avoiding the test device body 1 from being damaged or the structure becoming loose due to vibration factors, thereby achieving the purpose of shock absorption control, and under the effect of the reduction of vibration force, the noise generated by the test device body 1 itself during operation is also correspondingly reduced, ensuring long-term stable operation.

[0027] See also Figure 1-Figure 3The buffer member 33 includes a connecting platform 331 provided on the lower side of the positioning platform 31, a receiving groove 332 is provided at the upper end of the connecting platform 331, a buffer groove 333 is provided at the side end of the connecting platform 331, the buffer groove 333 and the receiving groove 332 are communicated with each other, a capsule 334 is installed between the inner walls of the receiving groove 332, and a shock-absorbing spring 335 is fixedly connected between the central axis position of the connecting platform 331 and the inner wall of the positioning platform 31.

[0028] When the present solution is in use, after the test device body 1 generates vibrations during operation, the force generated by the test device body 1 first transmits energy to the lower side of the connecting platform 331 through the positioning platform 31. At this time, since a shock-absorbing spring 335 is connected between the connecting platform 331 and the positioning platform 31, under the energy vibration, the shock-absorbing spring 335 moves downward and is compressed, causing the positioning platform 31 to be squeezed to the capsule 334 inside the receiving groove 332. Due to the mutual squeezing of the forces, the capsule 334 changes shape. The upper end of the capsule 334 is in the same horizontal plane as the connecting platform 331, and the side end expands inside the buffer groove 333 under the action of the force, thereby causing the initially generated vibration energy to be weakened, so as to better reduce the vibration force in the later stage and achieve shock absorption control.

[0029] See also Figure 1-Figure 4 The second buffer member 35 includes a damping rubber sleeve 351 fixedly connected to the inner bottom end of the rubber support 34, a damper 352 is installed at the inner bottom end of the damping rubber sleeve 351, the top surface of the damper 352 is fixedly connected to the bottom surface of the first buffer member 33, and a second shock-absorbing spring 353 is fixedly connected between the damper 352 and the inner wall of the first buffer member 33, and the second shock-absorbing spring 353 is located on the outside of the damper 352.

[0030] When the present solution is in use, after the buffer member 1 33 weakens the initial vibration energy, its energy is transmitted again to the surface of the damping rubber sleeve 351, which is accompanied by the damper 352 connected between the connecting platform 331 and the damping rubber sleeve 351, thereby further weakening the vibration force caused by the connecting platform 331 downward. At the same time, under the action of the shock-absorbing spring 2 353, the recovery rate of the damper 352 under elastic potential energy can be made more efficient, thereby enhancing the shock absorption efficiency.

[0031] Compared with the prior art, in this embodiment, the shock absorbing assembly 3 can perform shock absorbing operation on the entire test device body 1 during operation, thereby preventing the internal component gaps of the test device body 1 from loosening and the thermal insulation effect from failing due to vibration factors, thereby achieving the purpose of shock absorbing control. In addition, due to the reduction of vibration force, the noise generated during the overall operation is also reduced accordingly, ensuring long-term stable operation.

[0032] See also Figure 1and Figure 5-Figure 7 A slide groove 41 is provided at the side end of the positioning frame 4, a positioning bolt 42 is inserted at the upper end of one side of the slide groove 41, a built-in pull groove 51 is provided at the side end of the filter screen 5, a positioning groove 52 is provided at the upper end of one side of the filter screen 5, and the positioning groove 52 and the positioning bolt 42 correspond to each other.

[0033] More specifically, the cleaning assembly 6 includes a liquid-filling member 61 installed at the side end of the positioning frame 4, and a cleaning member 62 is slidably installed between the inner walls of the liquid-filling member 61, wherein; The liquid replenishing part 61 includes a liquid storage tank 611 fixedly connected to the side end of the positioning frame 4, a liquid replenishing groove 612 for accommodating the cleaning part 62 is provided on the right side wall of the liquid storage tank 611, a slide groove 614 for driving the cleaning part 62 to slide is provided on the rear inner wall of the liquid storage tank 611, and a cover 613 is installed on the upper end of the liquid storage tank 611.

[0034] During the use of this solution, when too much dust and mosquitoes accumulate on the surface of the filter 5, which may easily affect the heat exchange effect and ventilation effect, and may also cause air pollution, the staff can pull the cleaning member 62 to make it slide from the inside of the liquid replenishing member 61 to the end between the slide groove 41, so as to achieve the cleaning work of the filter 5. After long-term use, when the filter 5 is damaged and cannot be used anymore, the staff can also rotate the positioning bolt 42 to release the restriction of the positioning groove 52, so that the staff can pull the filter 5 out from between the inner walls of the positioning frame 4, thereby facilitating the replacement work of the staff; At the same time, after each time the personnel pulls the cleaning piece 62 to clean the surface of the filter 5, the personnel can reset the cleaning piece 62 to the inside of the liquid refilling tank 612 again, so that the cleaning piece 62 can absorb the cleaning and disinfecting liquid inside the liquid storage tank 611, or when the personnel need to clean the filter 5, pull it to the inside of the liquid storage tank 611 to absorb the cleaning and disinfecting liquid, so that the cleaning piece 62 can absorb a sufficient amount of cleaning and disinfecting liquid and then perform the cleaning work, thereby ensuring the cleanliness of the filter after cleaning.

[0035] See also Figure 1 and Figure 6-Figure 9 A second receiving groove 615 is provided on the inner wall of the top side of the liquid refilling groove 612, and a liquid refilling cylinder 616 is fixedly connected between the inner walls of the second receiving groove 615. The bottom side of the liquid refilling cylinder 616 is made of elastic material, and a plurality of evenly distributed liquid seepage holes are provided on the bottom. A micro-lifting pump 617 is installed on the inner bottom of the liquid storage tank 611, and a lifting pipe on one side of the micro-lifting pump 617 is located on the upper side of the second receiving groove 615.

[0036] More specifically, the cleaning member 62 includes a connecting frame 621 provided between the inner walls of the liquid storage tank 611, a placement groove 622 is provided at the side end of the connecting frame 621, a fiber cotton pad 623 is embedded between the inner walls of the placement groove 622, a slider 624 is fixedly connected to the rear end of the connecting frame 621, and the slider 624 is slidably connected to the slide groove 614, and a shell 1 625 is fixedly connected to the left side of the connecting frame 621, and the shell 1 625 is sleeved on the fiber cotton pad 62 3, a plurality of evenly distributed cleaning brushes 626 are embedded at the rear side end of the shell 1 625, one end of the cleaning brush 626 is in contact with the fiber cotton pad 623, a handle 627 is fixedly connected to the rear end of the shell 1 625, a shell 2 628 is fixedly connected to the right side end of the connecting frame 621, the shell 2 628 is sleeved on the other side of the fiber cotton pad 623, a through hole is opened at the upper end of the shell 2 628, and a sealing film 629 is installed between the inner walls of the through hole.

[0037] More specifically, the cleaning brush 626 is made of capillary fiber material, and the sealing film 629 is made of the principle of a heart valve.

[0038] During use of the present solution, when the connecting frame 621 slides toward the side of the liquid refilling tank 612, the second housing 628 is first located in the liquid refilling tank 612, and the sealing film 629 is located at the lower side of the liquid refilling cylinder 616. At this time, the personnel can drive the micro-lifting pump 617 to lift the cleaning and disinfecting liquid in the liquid storage tank 611 to the top of the liquid refilling cylinder 616, and pour the liquid into it, and then the seepage hole set at the bottom of the liquid refilling cylinder 616 leaks downwards, and since the bottom of the liquid refilling cylinder 616 is elastic, the liquid refilling cylinder 616 can be easily opened. Under the setting, when the second shell 628 slides into the liquid storage tank 611, the liquid refilling cylinder 616 presses the sealing film 629, causing the sealing film 629 to open under the force, so that the cleaning and disinfecting liquid flows into the second shell 628, and is guided by the absorption of the fiber cotton pad 623 to transfer the liquid to one side of the cleaning brush 626. At the same time, the cleaning brush 626 absorbs the full cleaning and disinfecting liquid as a whole, so that subsequent personnel can use the cleaning brush 626 on the surface of the filter 5 to improve the cleaning efficiency; When the second housing 628 slides out of the inner wall of the liquid storage tank 611, the sealing film 629 is no longer under stress and presents a sealed state, and the micro lift pump 617 also stops working, thereby avoiding the continuous input of cleaning and disinfecting liquid and reducing cost waste; In this embodiment, the sealing film 629 utilizes the principle of a heart valve, which is the same as the principle of a bicycle valve core. In normal circumstances when there is no force applied, the film is gathered together and is in a closed state. When subjected to external force, the film is forced to open outward to form a channel.

[0039] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A performance test device for a fresh air air handling unit, comprising a test device body (1), characterized in that: The lower end of the test device body (1) is fixedly connected to a bracket (2), and a plurality of evenly distributed shock absorbing components (3) are installed at the lower end of the bracket (2). A positioning frame (4) is fixedly connected to the air inlet at the side end of the test device body (1), and a filter (5) is slidably installed between the inner walls of the positioning frame (4). A cleaning component (6) is provided at the side end of the positioning frame (4).

2. A fresh air air handling unit performance test device according to claim 1, characterized in that: The shock absorbing assembly (3) comprises a positioning platform (31) installed at multiple locations on the lower end of the bracket (2); a buffer member (33) is provided on the lower side of the positioning platform (31); a rubber support (34) is provided on the lower side of the buffer member (33); a buffer member (35) is installed between the buffer member (33) and the inner wall of the rubber support (34); a plurality of mutually superimposed high damping seismic isolation rubber pads (36) are fixedly connected between the buffer member (33) and the inner wall of the rubber support (34); the high damping seismic isolation rubber pad (36) is sleeved on the outer side of the buffer member (35); and a protective sleeve (37) is fixedly connected to the outer end of the high damping seismic isolation rubber pad (36).

3. A fresh air air handling unit performance test device according to claim 2, characterized in that: The buffer member 1 (33) comprises a connection platform (331) provided at the lower side of the positioning platform (31); a receiving groove 1 (332) is provided at the upper end of the connection platform (331); a buffer groove (333) is provided at the side end of the connection platform (331); the buffer groove (333) and the receiving groove 1 (332) are communicated with each other; a capsule (334) is installed between the inner walls of the receiving groove 1 (332); and a shock-absorbing spring 1 (335) is fixedly connected between the central axis position of the connection platform (331) and the inner wall of the positioning platform (31).

4. A fresh air air handling unit performance test device according to claim 2, characterized in that: The second buffer component (35) comprises a damping rubber sleeve (351) fixedly connected to the inner bottom end of the rubber support (34); a damper (352) is installed at the inner bottom end of the damping rubber sleeve (351); the top surface of the damper (352) is fixedly connected to the bottom surface of the first buffer component (33); a second shock-absorbing spring (353) is fixedly connected between the damper (352) and the inner wall of the first buffer component (33); the second shock-absorbing spring (353) is located on the outside of the damper (352).

5. A fresh air air handling unit performance test device according to claim 1, characterized in that: A slide groove (41) is provided at the side end of the positioning frame (4), a positioning bolt (42) is inserted at the upper end of one side of the slide groove (41), a built-in pull groove (51) is provided at the side end of the filter screen (5), a positioning groove (52) is provided at the upper end of one side of the filter screen (5), and the positioning groove (52) and the positioning bolt (42) correspond to each other.

6. A fresh air air handling unit performance test device according to claim 1, characterized in that: The cleaning assembly (6) comprises a liquid supply component (61) mounted on the side end of the positioning frame (4), and a cleaning component (62) is slidably mounted between the inner walls of the liquid supply component (61), wherein; The liquid replenishing member (61) comprises a liquid storage tank (611) fixedly connected to the side end of the positioning frame (4); a liquid replenishing groove (612) for accommodating the cleaning member (62) is provided on the right side wall of the liquid storage tank (611); a second slide groove (614) for driving the cleaning member (62) to slide is provided on the rear inner wall of the liquid storage tank (611); and a sealing cover (613) is installed at the upper end of the liquid storage tank (611).

7. A fresh air air handling unit performance test device according to claim 6, characterized in that: A second receiving groove (615) is provided on the inner wall of the top side of the liquid refilling groove (612), a liquid refilling cylinder (616) is fixedly connected between the inner walls of the second receiving groove (615), the bottom side of the liquid refilling cylinder (616) is made of elastic material, and a plurality of evenly distributed liquid seepage holes are provided on the bottom, a micro lift pump (617) is installed on the inner bottom of the liquid storage tank (611), and a lifting pipe on one side of the micro lift pump (617) is located on the upper side of the second receiving groove (615).

8. A fresh air air handling unit performance test device according to claim 6, characterized in that: The cleaning member (62) comprises a connecting frame (621) provided between the inner walls of the liquid storage tank (611), a placement groove (622) is provided at the side end of the connecting frame (621), a fiber cotton pad (623) is embedded between the inner walls of the placement groove (622), a slider (624) is fixedly connected to the rear end of the connecting frame (621), the slider (624) is slidably connected to the second slide groove (614), a shell (625) is fixedly connected to the left side of the connecting frame (621), and the shell (625) is sleeved on the fiber cotton pad (623). ), a plurality of evenly distributed cleaning brushes (626) are embedded at the rear end of the shell one (625), one end of the cleaning brush (626) is in contact with the fiber cotton pad (623), a handle (627) is fixedly connected to the rear end of the shell one (625), the right end of the connecting frame (621) is fixedly connected to the shell two (628), the shell two (628) is sleeved on the other side of the fiber cotton pad (623), a through hole is opened at the upper end of the shell two (628), and a sealing film (629) is installed between the inner walls of the through hole.

9. A fresh air air handling unit performance test device according to claim 8, characterized in that: The cleaning brush (626) is made of capillary fiber material, and the sealing film (629) is made based on the principle of a heart valve.

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