Search

CN-224216513-U - Rotating device for collecting pipe of general ventilation air filter test bench

CN224216513UCN 224216513 UCN224216513 UCN 224216513UCN-224216513-U

Abstract

The utility model discloses a rotating device of a collecting pipe of a general ventilation air filter test bench, which comprises a test section pipeline, wherein a sampling head is arranged in the test section pipeline, a mounting hole is formed in the test section pipeline, a shaft sleeve is arranged in the mounting hole, a supporting block is arranged below the test section pipeline, a base is arranged at the bottom of the shaft sleeve, one end of the sampling head is arranged in the base, a connecting pipe is arranged at the bottom of the base, a rotating assembly is arranged at one side of the supporting block, and is connected with the shaft sleeve, so that the problem that the accuracy of the filtering efficiency result of other products in the follow-up test is reduced due to the fact that the concentration of particles in air is high in the dust holding capacity test, the collecting head and a particle counter are polluted to a certain extent is solved, the collecting head is covered by a cover in the prior art, but the method lacks certain consistency, and the air tightness in the whole equipment is influenced by opening the test section pipeline, so that the accuracy is easy to be reduced is solved.

Inventors

  • WU ZHENHUI
  • LONG DAHAI
  • WU JIANDONG

Assignees

  • 嘉兴隆曼测控技术有限公司

Dates

Publication Date
20260508
Application Date
20250529

Claims (5)

  1. 1. The utility model provides a rotating device of general air cleaner testboard collecting pipe for ventilation, includes test section pipeline (1), is provided with sampling head (2) in test section pipeline (1), a serial communication port, set up mounting hole (3) in test section pipeline (1), install axle sleeve (4) in mounting hole (3), supporting shoe (5) are installed to the below of test section pipeline (1), the one end of axle sleeve (4) is located supporting shoe (5), base (6) are installed to the bottom of axle sleeve (4), in the one end of sampling head (2) enters into base (6) after inserting and passing axle sleeve (4) from axle sleeve (4), a plurality of draw-in grooves (7) have been seted up in axle sleeve (4), fixture block (8) that fixedly connected with quantity corresponds with draw-in groove (7) quantity on sampling head (2), fixture block (8) can block in draw-in groove (7), bottom mounting (9) of base (6), rotating assembly (10) are installed to one side of supporting shoe (5), coupling pipe (10) and axle sleeve (4) are connected.
  2. 2. The rotating device of the collecting pipe of the air filter test bench for general ventilation according to claim 1, wherein a sealing block (11) is fixedly connected in the shaft sleeve (4), and the sealing block (11) is attached to the shaft sleeve (4) and the sampling head (2).
  3. 3. The rotating device of the collecting pipe of the air filter test bench for general ventilation according to claim 2, wherein one end of the sampling head (2) is inclined, a groove (12) matched with the inclined part of the sampling head (2) is formed in the base (6), and a sealing ring (13) is fixedly connected in the base (6).
  4. 4. A rotating device of a collecting pipe of a general ventilation air filter test bench according to claim 3, characterized in that a three-way pipe (14) is arranged below the connecting pipe (9), a first end of the three-way pipe (14) is connected with the connecting pipe (9), a second end and a third end of the three-way pipe (14) are respectively and fixedly connected with an electronic valve (15), one side of the electronic valve (15) is fixedly connected with a particle counter, and the other side of the electronic valve (15) is fixedly connected with an air pump (16).
  5. 5. The rotating device of the collecting pipe of the air filter test bench for general ventilation according to claim 1, wherein the rotating assembly (10) comprises a first gear (101), a second gear (102), a servo motor (103) and a mounting plate (104), an opening is formed at one end of the supporting block (5), the mounting plate (104) is fixedly connected to the supporting plate, the mounting plate (104) is positioned at one side of the opening, the servo motor (103) is mounted on the mounting plate (104), the first gear (101) is mounted on the servo motor (103), the second gear (102) is mounted on the shaft sleeve (4), the first gear (101) is meshed with the second gear (102), and a reinforcing rib is mounted between the mounting plate (104) and the supporting block (5).

Description

Rotating device for collecting pipe of general ventilation air filter test bench Technical Field The utility model relates to the technical field of performance test of air filters, in particular to a rotating device of a collecting pipe of a test bench of an air filter for general ventilation. Background The test bench for general ventilating air filter is used for detecting the performance of general ventilating air filter, and has the functions of testing filtering efficiency, resistance, air quantity, dust holding capacity, etc. it is composed of several sections of pipeline including air inlet pipeline, air outlet pipeline, test section pipeline, etc. the pipeline system is used for guiding air flow, providing stable air flow environment for filter and ensuring uniformity and stability of air flow in the test process. The sampling head used for collecting the concentration of particles in the air is arranged in the pipeline of the test section, the particle counter used for counting is arranged below the sampling head, and the filter material to be tested is also arranged in the pipeline of the test section and positioned at the front end of the sampling head. However, in the current test, the sampling head is required to sample and count particles in the air in the filtration efficiency test, and the sampling head is not required to collect in the test of the dust holding capacity, but the existing sampling head cannot change the direction by itself and is always in a windward state, and in the test of the dust holding capacity, certain pollution is caused to the sampling head and the particle counter due to the large concentration of the particles in the air, so that the accuracy of the subsequent test is reduced, and the current method is to cover the sampling head by a cover, but the sampling head lacks certain continuity in the mode, and the air tightness in the whole equipment is easily reduced by opening the pipeline of the test section. Disclosure of utility model The application provides a rotating device of a collecting pipe of a general ventilation air filter test bench, which can solve the problems that in the dust holding capacity test, due to the fact that the concentration of particles in the air is large, certain pollution is caused to a collecting head and a particle counter, the accuracy of the filtering efficiency result of the subsequent test of other products is reduced, the collecting head is covered by a cover in the existing method, but the collecting head lacks certain consistency in the way, and the air tightness in the whole equipment is easily reduced due to the fact that a pipeline of a test section is opened. The application provides a rotating device of a collecting pipe of a general ventilation air filter test bench, which comprises a test section pipeline, wherein a sampling head is arranged in the test section pipeline, a mounting hole is formed in the test section pipeline, a shaft sleeve is arranged in the mounting hole, a supporting block is arranged below the test section pipeline, one end of the shaft sleeve is positioned in the supporting block, a base is arranged at the bottom of the shaft sleeve, one end of the sampling head is inserted into the base from the shaft sleeve and penetrates through the shaft sleeve, a plurality of clamping grooves are formed in the shaft sleeve, a plurality of clamping blocks with the number corresponding to the number of the clamping grooves are fixedly connected to the sampling head, the clamping blocks can be clamped into the clamping grooves, a connecting pipe is arranged at the bottom of the base, a rotating assembly is arranged on one side of the supporting block, and the rotating assembly is connected with the shaft sleeve. Further, a sealing block is fixedly connected in the shaft sleeve and is attached to the shaft sleeve and the sampling head. Further, one end of the sampling head is inclined, a groove matched with the inclined part of the sampling head is formed in the base, and a sealing ring is fixedly connected in the base. Further, a three-way pipe is arranged below the connecting pipe, a first end of the three-way pipe is connected with the connecting pipe, an electronic valve is fixedly connected to a second end and a third end of the three-way pipe respectively, one side of the three-way pipe is fixedly connected with the particle counter, and the other side of the three-way pipe is fixedly connected with the air pump. Further, the rotating assembly comprises a first gear, a second gear, a servo motor and a mounting plate, an opening is formed in one end of the supporting block, the mounting plate is fixedly connected to the supporting plate, the mounting plate is located on one side of the opening, the servo motor is mounted on the mounting plate, the first gear is mounted on the servo motor, the second gear is mounted on the shaft sleeve, the first gear is meshed with the second gear, and a reinforcing rib is mo