Square air filter rotary clamping device and using method

Abstract

The invention provides a square air filter rotary clamping device and a using method, the square air filter rotary clamping device comprises a front end supporting frame and a clamping supporting frame, a front end pipeline of a filter is in sliding connection with the front end supporting frame, and a clamping pipeline is in sliding connection with the clamping supporting frame and can axially rotate on the clamping supporting frame; the front-end pipeline and the clamping pipeline are connected through a plurality of front-end buckles, and the tail of the clamping pipeline is further connected with the rear-end pipeline through a plurality of single-head buckles. While various performance tests are carried out on the filter, the cost and time for manufacturing and replacing the test clamp due to different sizes of the filter can be reduced, the filter can be quickly mounted and dismounted, the concentric requirement of the filter and the ventilation pipeline can be improved, and the accuracy of the performance test result is further improved.

Description

Technical Field

[0001] The invention relates to the field of air filter equipment product installation, and in particular to a square air filter rotary clamping device and a use method thereof. Background Art

[0002] At present, air filters need to undergo various performance tests such as air tightness, filtration efficiency, and dust holding capacity before leaving the factory, and the filter usually needs to be installed in the ventilation duct for testing. For example, the patent number "CN105067365A" and the name "A test bench for humidity resistance and overpressure performance of air filters" discloses an air filter humidity resistance and overpressure performance test bench, including a high-pressure fan, a low-pressure fan, a water pump, a spray humidifier, a nozzle, an upstream pipeline, and a downstream pipeline. The high-pressure fan and the low-pressure fan are connected in parallel to the upstream pipeline, the water pump is connected to the spray humidifier, and the spray humidifier is connected to a nozzle arranged in the upstream pipeline. The air filter to be tested is connected between the upstream pipeline and the downstream pipeline, and the end of the downstream pipeline is connected to the atmosphere. The air duct of the test bench of this invention is divided into two sections, both of which are equipped with pulleys, which can be used to slide on the slide rail for easy splitting and merging. The middle of the two sections of the air duct is used to install the filter to be tested. Although the test bench can quickly install and remove the filter, the filter size varies according to the rated air volume. When performing performance tests, the test fixtures of the front and rear ventilation ducts need to be frequently replaced according to the different sizes. At the same time, there is eccentricity between the filter inlet and outlet surfaces and the duct cross section. In view of the above problems, it is urgent to design a square air filter rotating clamping device and a method of use to solve the above problems. Summary of the invention

[0003] The main purpose of the present invention is to provide a square air filter rotating clamping device and a method of use, so as to solve the problem that when performing performance tests in the above-mentioned background technology, the test fixtures of the front and rear end ventilation ducts need to be frequently replaced according to different sizes, and at the same time, there is eccentricity between the air inlet and outlet surfaces of the filter and the cross-section of the duct.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a square air filter rotating clamping device, including a front end support frame and a clamping support frame, the front end pipeline of the filter is slidably connected to the front end support frame, the clamping pipeline is slidably connected to the clamping support frame and can rotate axially on the clamping support frame, the front end pipeline and the clamping pipeline are connected by multiple front end clips, and the tail of the clamping pipeline is also connected to the rear end pipeline by multiple single-head clips.

[0005] In the preferred embodiment, the structure of the front end buckle is the same as that of the single end buckle; The structure of the front-end buckle is as follows: a plurality of concave card slots are provided on the end face of the front-end pipeline, a plurality of convex card fasteners are provided on the clamping pipeline, and card holes are provided on the concave card slots and the convex card fasteners; A front-end cylinder is also provided on one side of the front-end buckle, and the concave clamping groove and the convex clamping fastener are coaxial with the two clamping holes, and the shaft body of the front-end cylinder passes through the two clamping holes to lock the front-end buckle.

[0006] In the preferred embodiment, a clamping support plate is provided at one side of the concave slot at the end of the front end pipeline, and the front end cylinder is arranged on the clamping support plate.

[0007] In the preferred embodiment, a front end flange is provided at one end of the front end pipe of the front end pipeline, and clamping flanges are provided at both ends of the clamping pipeline, and both ends of the clamping pipeline are connected to the front end flange of the front end pipeline and the rear end flange of the rear end pipeline through the clamping flanges; In addition, air-tight devices are arranged between the front end flange, the rear end flange and the clamping flange pair.

[0008] In a preferred embodiment, the front end of the pipeline is connected to the flexible connecting pipe through a reducer.

[0009] In the preferred embodiment, a front guide rail is provided on the front support frame, the lower surface of the front pipe is slidably connected to the front guide rail through a plurality of front sliders, and a front limit block is provided at one or both ends of the front guide rail.

[0010] In the preferred embodiment, the lower surface of the clamping pipe is connected to the rotating pallet, and the lower surface of the clamping pipe is slidably connected to the clamping guide rail through multiple clamping slide blocks. The clamping guide rail is arranged on the clamping support frame, and a clamping limit block is provided at one end or both ends of the clamping guide rail.

[0011] In the preferred embodiment, a clamping cylinder is also hinged on the clamping support frame, and the telescopic shaft of the clamping cylinder is hinged to the upper position of the rotating tray; The clamping cylinder drives the rotating pallet to rotate on the clamping support frame.

[0012] In a preferred embodiment, the method comprises: S1. First slide the front-end pipe and the clamping pipe horizontally, and then adjust the clamping pipe from the horizontal direction to the vertical direction through the clamping cylinder. After the filter is installed, adjust the clamping pipe from the vertical direction to the horizontal direction through the clamping cylinder; S2, then slide the front end pipe and the clamping pipe in the opposite horizontal direction and make them contact with the front end limit block and the clamping limit block respectively; S3, the shaft of the front cylinder is locked with the front buckle and the single-end buckle in turn, at which time the front flange and the clamping flange are in contact and aligned, and the shaft of the rear cylinder is locked with the rear buckle and the single-end buckle in turn, at which time the rear flange and the clamping flange are in contact and aligned; S4. Fill the airtight devices at both ends of the clamped pipe with air to form sealed end faces.

[0013] The present invention provides a square air filter rotary clamping device and a method for using the same. The present invention can reduce the cost and time of manufacturing and replacing test fixtures due to different filter sizes while performing various performance tests on the filter. It can not only quickly install and remove the filter, but also improve the concentricity requirements of the filter and the ventilation pipeline, further improving the accuracy of the performance test results. It has the following beneficial effects: 1. It can be used for product clamping in filter performance testing.

[0014] 2. It can improve the accuracy of the filter clamping position.

[0015] 3. It can reduce the cost of manufacturing test fixtures and improve economic benefits.

[0016] 4. It can reduce the time of replacing the test fixture and improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is the overall main structural diagram of the present invention; Figure 2 It is the overall appearance structure diagram of the present invention; Figure 3 It is an enlarged structural diagram of the front end buckle of the present invention.

[0018] In the figure: front-end pipeline 1; clamping pipeline 2; rear-end pipeline 3; front-end pipeline 101; front-end buckle 102; concave slot 1021; convex clamp 1022; clamping hole 1023; front-end cylinder 103; front-end flange 104; front-end support frame 105; front-end guide rail 106; front-end slider 107; front-end limit block 108; reducer 109; flexible connecting pipe 110; clamping pipeline 201; single-head buckle 202; rotating tray 203; clamping flange 204; clamping support frame 205; clamping guide rail 206; clamping slider 207; clamping limit block 208; clamping cylinder 209; airtight device 210; rear-end pipeline 301; rear-end buckle 302; rear-end cylinder 303; rear-end flange 304; clamping support plate 4. DETAILED DESCRIPTION

[0019] Example 1 like Figures 1 to 3 As shown, a square air filter rotating clamping device includes a front end support frame 105 and a clamping support frame 205, the front end pipeline 1 of the filter is slidably connected to the front end support frame 105, the clamping pipeline 2 is slidably connected to the clamping support frame 205 and can rotate axially on the clamping support frame 205, the front end pipeline 1 and the clamping pipeline 2 are connected by multiple front end buckles 102, and the tail of the clamping pipeline 2 is also connected to the rear end pipeline 3 by multiple single-head buckles 202.

[0020] In the preferred embodiment, the structure of the front end buckle 102 is the same as the single end buckle 202; The structure of the front end buckle 102 is as follows: a plurality of concave clamping grooves 1021 are provided on the end surface of the front end pipeline 1, a plurality of convex clamping fasteners 1022 are provided on the clamping pipeline 2, and clamping holes 1023 are provided on the concave clamping grooves 1021 and the convex clamping fasteners 1022; A front cylinder 103 is also provided on one side of the front buckle 102 , and the concave slot 1021 and the convex snap 1022 cooperate with the two clamping holes 1023 to be coaxial, and the shaft of the front cylinder 103 passes through the two clamping holes 1023 to lock the front buckle 102 .

[0021] In the preferred embodiment, a clamping support plate 4 is provided at one side of the concave slot 1021 at the end of the front end pipeline 1 , and the front end cylinder 103 is arranged on the clamping support plate 4 .

[0022] In the preferred embodiment, a front end flange 104 is provided at one end of the front end pipe 101 of the front end pipeline 1, and clamping flanges 204 are provided at both ends of the clamping pipeline 2. Both ends of the clamping pipeline 2 are connected to the front end flange 104 of the front end pipeline 1 and the rear end flange 304 of the rear end pipeline 3 through the clamping flanges 204. Furthermore, airtight devices 210 are provided between the front end flange 104 , the rear end flange 304 and the clamping flange 204 .

[0023] In a preferred embodiment, the end of the front end pipeline 101 is connected to the flexible connecting pipe 110 via a reducer 109 .

[0024] In the preferred embodiment, a front guide rail 106 is provided on the front support frame 105, and the lower surface of the front pipe 101 is slidably connected to the front guide rail 106 through a plurality of front sliders 107, and a front limit block 108 is provided at one or both ends of the front guide rail 106.

[0025] In the preferred embodiment, the lower surface of the clamping pipe 201 is connected to the rotating pallet 203, and the lower surface of the clamping pipe 201 is slidably connected to the clamping guide rail 206 through multiple clamping sliders 207. The clamping guide rail 206 is arranged on the clamping support frame 205, and a clamping limit block 208 is provided at one end or both ends of the clamping guide rail 206.

[0026] In the preferred embodiment, a clamping cylinder 209 is also hinged on the clamping support frame 205, and the telescopic shaft of the clamping cylinder 209 is hinged to the upper position of the rotating tray 203; The clamping cylinder 209 drives the rotating tray 203 to rotate on the clamping support frame 205 .

[0027] The square air filter rotary clamping device of this embodiment is mainly composed of a front end support frame 105 and a clamping support frame 205, which is used to achieve efficient clamping of the filter in performance testing, effectively solve the problem of frequent replacement of test fixtures due to differences in filter sizes, and at the same time improve clamping precision and test accuracy.

[0028] The front-end pipeline 1 of the filter is connected to the front-end support frame 105 by sliding. The front-end guide rail 106 is carefully arranged on the front-end support frame 105, and the lower surface of the front-end pipe 101 cooperates smoothly with it by means of multiple front-end sliders 107, ensuring that the front-end pipeline 1 moves smoothly and is precisely positioned. A front-end limit block 108 is configured at one or both ends of the front-end guide rail 106 to accurately define the sliding range of the front-end pipeline 1, prevent overtravel, and ensure operational safety and stability. For example, in the actual clamping process, the front-end slider 107 slides steadily along the front-end guide rail 106 until it contacts the front-end limit block 108, so that the front-end pipeline 1 is accurately positioned.

[0029] The clamping pipeline 2 is also slidably connected to the clamping support frame 205, and can realize axial rotation on the clamping support frame 205. The lower surface of the clamping pipeline 201 is firmly connected to the rotating tray 203, and the lower surface of the clamping slider 207 is slidably connected to the clamping guide rail 206 on the clamping support frame 205 by means of multiple clamping sliders 207. A clamping limit block 208 is set at one or both ends of the clamping guide rail 206 to effectively restrict the sliding and rotation range of the clamping pipeline 2, ensure its accurate positioning and stable operation during the clamping operation, and greatly improve the accuracy of the filter clamping position.

[0030] The front-end pipeline 1 and the clamping pipeline 2 are firmly connected by multiple front-end buckles 102, and the tail of the clamping pipeline 2 is reliably connected to the rear-end pipeline 3 by multiple single-end buckles 202, and the front-end buckle 102 has the same structure as the single-end buckle 202. Taking the front-end buckle 102 as an example, the end face of the front-end pipeline 1 is distributed with multiple concave card grooves 1021, and the clamping pipeline 2 is correspondingly provided with multiple convex card fasteners 1022, and the concave card grooves 1021 and the convex card fasteners 1022 are precisely provided with card holes 1023. A front-end cylinder 103 is provided on one side of the front-end buckle 102. When the concave card groove 1021 and the convex card fastener 1022 are precisely matched to make the two card holes 1023 coaxial, the shaft of the front-end cylinder 103 passes through the card hole 1023 smoothly, and the front-end buckle 102 is strongly locked to ensure a tight and stable connection, prevent the filter from loosening during the test, and ensure the reliability of the test data.

[0031] A front flange 104 is installed at one end of the front pipe 101 of the front pipeline 1, and clamping flanges 204 are symmetrically arranged at both ends of the clamping pipeline 2, so that the clamping pipeline 2 is firmly connected with the front flange 104 of the front pipeline 1 and the rear flange 304 of the rear pipeline 3. Airtight devices 210 are carefully arranged at the relative positions of the front flange 104, the rear flange 304 and the clamping flange 204 to effectively prevent gas leakage, create a stable airtight environment for the filter performance test, and improve the accuracy and reliability of the test results.

[0032] The end of the front pipe 101 is cleverly connected to the flexible connecting pipe 110 through the reducer 109. This design greatly enhances the device's adaptability to filters of different specifications and complex test environments. The reducer 109 can flexibly adjust the pipe diameter to meet different flow requirements; the flexible connecting pipe 110 can effectively buffer vibrations and compensate for installation errors, ensuring a stable and reliable connection and smooth airflow transmission, all-roundly improving the practicality and stability of the device.

[0033] Example 2 Further illustrate with reference to Example 1, Figure 1-3 The structure shown in FIG. 1 includes: S1. First, slide the front-end pipe 101 and the clamping pipe 201 horizontally, and then adjust the clamping pipe 201 from the horizontal direction to the vertical direction through the clamping cylinder 209. After the filter is installed, adjust the clamping pipe 201 from the vertical direction to the horizontal direction through the clamping cylinder 209; S2, the front end pipe 101 and the clamping pipe 201 are slid horizontally in the opposite direction and contact the front end limit block 108 and the clamping limit block 208 respectively; S3, the shaft of the front cylinder 103 is locked with the front buckle 102 and the single-head buckle 202 in sequence, at which time the front flange 104 and the clamping flange 204 are in contact and aligned, and the shaft of the rear cylinder 303 is locked with the rear buckle 302 and the single-head buckle 202 in sequence, at which time the rear flange 304 and the clamping flange 204 are in contact and aligned; S4. Fill the airtight devices 210 clamping the two ends of the pipe 201 with air to form sealed end faces.

[0034] How to use the rotating clamping device for square air filters This method of use is closely coordinated with the clamping device of Example 1, providing a precise and efficient process for the clamping operation in the performance test of the square air filter, ensuring accurate installation and stable testing of the filter, and effectively improving test efficiency and data quality.

[0035] 1. Preparation and preliminary adjustment before clamping At the beginning of the operation, the front-end pipe 101 and the clamping pipe 201 are slid horizontally along their respective guide rails to ensure that all components of the device are in an initial flexible state, laying the foundation for subsequent precise clamping of the filter.

[0036] Subsequently, the clamping cylinder 209 is used to drive the clamping pipe 201 to smoothly adjust from horizontal to vertical around the axis of the rotating tray 203. During this process, the telescopic shaft of the clamping cylinder 209 and the hinge at the upper position of the rotating tray 203 are precisely exerted to ensure that the clamping pipe 201 rotates smoothly and at a precise angle, creating favorable space conditions for filter installation. After the filter is accurately installed in the predetermined position, the clamping cylinder 209 moves accurately again to drive the clamping pipe 201 from the vertical direction back to the horizontal direction, ensuring that the filter is in the correct posture and stable position, in preparation for subsequent connection operations.

[0037] 2. Clamping position calibration and limit: After completing the above adjustments, push the front-end pipe 101 and the clamping pipe 201 to slide horizontally in the opposite direction until they are in close contact with the front-end limit block 108 and the clamping limit block 208 respectively. Through the precise limit of the limit block, the position deviation during the clamping process is effectively eliminated, ensuring that the front-end pipeline 1 and the clamping pipeline 2 are accurately aligned, providing a stable and reliable benchmark for the subsequent buckle and flange connection, further improving the accuracy of the filter clamping position, and ensuring the consistency of the test environment.

[0038] 3. Buckle and flange locking operation The front-end cylinder 103 starts in an orderly manner, and its shaft passes through the coaxial clamping holes 1023 of the front-end buckle 102 and the single-head buckle 202 in turn, applying stable and moderate pressure to lock the buckle, so that the front-end flange 104 and the clamping flange 204 are tightly fitted and aligned, building a stable connection structure, ensuring that the mechanical properties of the filter are stable and reliable during the test.

[0039] The rear end cylinder 303 works synchronously and its shaft part precisely cooperates with the rear end buckle 302 and the single-head buckle 202, firmly locking the rear end flange 304 and the clamping flange 204, and comprehensively enhancing the reliability of the connection between the filter and the front and rear end pipelines, ensuring stable airflow and constant pressure during the test, laying a solid foundation for accurately obtaining filter performance data.

[0040] 4. Construction of airtight end face and optimization of test environment: Finally, fill the airtight device 210 at both ends of the clamped pipe 201 with a proper amount of air at a uniform speed, so that the airtight device expands appropriately and fills the flange gap tightly to form a reliable sealing end face. This sealing end face effectively prevents external gas interference, ensures that the filter test is carried out in a stable airtight environment, significantly improves the accuracy and credibility of the test results, and provides solid data support for filter performance evaluation.

[0041] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A square air filter rotating clamping device, characterized by: The filter comprises a front end support frame (105) and a clamping support frame (205); the front end pipeline (1) of the filter is slidably connected to the front end support frame (105); the clamping pipeline (2) is slidably connected to the clamping support frame (205) and can rotate axially on the clamping support frame (205); the front end pipeline (1) and the clamping pipeline (2) are connected via a plurality of front end buckles (102); and the rear end of the clamping pipeline (2) is also connected to the rear end pipeline (3) via a plurality of single-end buckles (202).

2. According to claim 1, a square air filter rotating clamping device is characterized in that: The structure of the front end buckle (102) is the same as that of the single end buckle (202); The structure of the front end buckle (102) is as follows: a plurality of concave clamping grooves (1021) are provided on the end surface of the front end pipeline (1), a plurality of convex clamping fasteners (1022) are provided on the clamping pipeline (2), and clamping holes (1023) are provided on both the concave clamping grooves (1021) and the convex clamping fasteners (1022); A front cylinder (103) is also provided on one side of the front buckle (102); the concave clamping groove (1021) and the convex clamping fastener (1022) are coaxial with the rear two clamping holes (1023); and the shaft of the front cylinder (103) passes through the two clamping holes (1023) to lock the front buckle (102).

3. According to claim 2, a square air filter rotating clamping device is characterized in that: A clamping support plate (4) is provided at the end of the front end pipeline (1) on one side of the concave slot (1021), and the front end cylinder (103) is arranged on the clamping support plate (4).

4. According to claim 1, a square air filter rotating clamping device is characterized in that: A front end flange (104) is provided at one end of the front end pipe (101) of the front end pipeline (1), and clamping flanges (204) are provided at both ends of the clamping pipeline (2). Both ends of the clamping pipeline (2) are connected to the front end flange (104) of the front end pipeline (1) and the rear end flange (304) of the rear end pipeline (3) through the clamping flanges (204); Furthermore, an airtight device (210) is provided between the front end flange (104), the rear end flange (304) and the clamping flange (204).

5. According to claim 1, a square air filter rotating clamping device is characterized in that: The end of the front pipeline (101) is connected to the flexible connecting pipe (110) via a reducer (109).

6. According to claim 1, a square air filter rotating clamping device, characterized in that: the front end A front guide rail (106) is provided on the support frame (105); the lower surface of the front pipe (101) is slidably connected to the front guide rail (106) via a plurality of front sliders (107); and a front limit block (108) is provided at one or both ends of the front guide rail (106).

7. The square air filter rotary clamping device according to claim 1 is characterized in that: The lower surface of the clamping pipe (201) is connected to the rotating tray (203), and the lower surface of the clamping pipe (201) is slidably connected to the clamping guide rail (206) via a plurality of clamping slide blocks (207). The clamping guide rail (206) is arranged on the clamping support frame (205), and a clamping limit block (208) is provided at one end or both ends of the clamping guide rail (206).

8. A square air filter rotating clamping device according to claim 7, characterized in that: A clamping cylinder (209) is also hingedly connected to the clamping support frame (205), and a telescopic shaft of the clamping cylinder (209) is hingedly connected to the upper position of the rotating tray (203); The clamping cylinder (209) drives the rotating tray (203) to rotate on the clamping support frame (205).

9. A method for using a square air filter rotary clamping device according to any one of claims 1 to 8, characterized in that: The method includes: S1, first slide the front end pipe (101) and the clamping pipe (201) horizontally, then adjust the clamping pipe (201) from the horizontal direction to the vertical direction by using the clamping cylinder (209), and after the filter is installed, adjust the clamping pipe (201) from the vertical direction to the horizontal direction by using the clamping cylinder (209); S2, sliding the front end pipe (101) and the clamping pipe (201) horizontally in the opposite direction and making them contact with the front end limit block (108) and the clamping limit block (208) respectively; S3, the shaft of the front cylinder (103) is locked with the front buckle (102) and the single-head buckle (202) in sequence, at which time the front flange (104) and the clamping flange (204) are in contact and aligned, and the shaft of the rear cylinder (303) is locked with the rear buckle (302) and the single-head buckle (202) in sequence, at which time the rear flange (304) and the clamping flange (204) are in contact and aligned; S4. Filling the interior of the airtight devices (210) clamping the two ends of the pipeline (201) with air to form sealed end faces.

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