CN219345041U

CN219345041U - Fan test fixture

Info

Publication number: CN219345041U
Application number: CN202320297020.4U
Authority: CN
Inventors: 宗庆根
Original assignee: Jiangsu Sunward Electronic Technology Co ltd
Current assignee: Jiangsu Sunward Electronic Technology Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-14
Anticipated expiration: 2033-02-23

Abstract

The utility model relates to a fan test fixture, which comprises a test support, a front cover, a test pointer and a pointer connecting mechanism, wherein the front cover is provided with a front cover; the test support is concave and comprises an air inlet inclined plane, an air outlet inclined plane and a test bench; the test pointer is positioned above the test table, the test table is provided with a connecting groove, and one end of the test pointer is connected to the connecting groove through a pointer connecting mechanism; the fixed rod is fixed with a torsion spring connecting piece, one end of the torsion spring is fixed on the torsion spring connecting piece, and the other end of the torsion spring is fixed on the test pointer; the front cover is fixed on the test support, and the front cover is a transparent plate body. The utility model has the advantages that: the fan wind-conveying device has the advantages of simple structure, convenience in disassembly and assembly, low detection cost and high efficiency, and can intuitively reflect the working state of whether the fan conveys wind or not by utilizing the rotation of the test pointer.

Description

Fan test fixture

Technical Field

The utility model relates to a fan testing tool.

Background

In many industrial plants it is necessary to control the temperature of the plant operating environment to ensure production safety. Generally, the fan is cooled by air, and a thermistor used in the circuit senses temperature, and when the temperature reaches or exceeds a preset value, the fan is started. In the detection operation of a circuit and a fan, whether a finished product has the working effect of immediately starting the fan to cool after the environment reaches high temperature is detected.

On the production line, the operation method for directly observing whether the fan immediately transmits wind through naked eyes by simulating a high-temperature environment is low in efficiency, and a detector cannot rapidly observe the wind transmission condition of the fan. Therefore, further improvement on the fan detection tool is needed to solve the problem of low detection efficiency.

Disclosure of Invention

The utility model aims to provide a fan testing tool which can intuitively observe whether a fan transmits air or not and improve the fan detection efficiency on a production line.

In order to achieve the purpose of the utility model, a fan test fixture is provided, which comprises a test support, a front cover, a test pointer and a pointer connecting mechanism;

the test support is concave and comprises an air inlet inclined plane, an air outlet inclined plane and a test bench; the test bench is positioned between the air inlet inclined plane and the air outlet inclined plane, the air inlet end of the air inlet inclined plane is lowest, and the air outlet end of the air outlet inclined plane is lowest; the test pointer is positioned above the test table, the test table is provided with a connecting groove, and one end of the test pointer is connected to the connecting groove through the pointer connecting mechanism;

the pointer connecting mechanism comprises a fixed ring, a connecting column, a connecting rod and a torsion spring; the fixing ring is fixed at the bottom of the connecting groove, two fixing rods are arranged at the top of the fixing ring, the top of the connecting column is fixed with the fixing rods, and the connecting column is positioned in the fixing ring; the connecting rod is rotationally connected to the connecting column, and the test pointer is fixed on the connecting rod; the fixing rod is fixed with a torsion spring connecting piece, one end of the torsion spring is fixed on the torsion spring connecting piece, and the other end of the torsion spring is fixed on the test pointer;

the front cover is fixed on the test support, and is a transparent plate body.

As a further improvement of the utility model, the pointer connecting mechanism further comprises a balance frame, two ends of the connecting rod extend out of the top and the bottom of the connecting column respectively, the balance frame is connected to the outside of the connecting column through two ends of the connecting rod, and the test pointer is fixed on the connecting rod through the balance frame.

Preferably, the test pointer above the test bench is provided with a windward plate, the windward plate is V-shaped, and the test pointer is fixed at the bottom of the windward plate.

As a further improvement of the utility model, two sides of the air inlet inclined plane are provided with air collecting plates, the distance between the air inlet ends of the two air collecting plates is the largest, and the distance between the two air collecting plates close to the test bench is the smallest.

Preferably, two fixing rods are located at two sides of the test pointer.

As a further improvement of the utility model, the test support is provided with a threaded hole, the front cover is provided with a through hole, and a screw penetrates through the through hole and the threaded hole to detachably fix the front cover on the test support.

According to the fan testing tool disclosed by the utility model, the air outlet of the fan to be tested is aligned with the air inlet of the air inlet inclined plane, if the fan is started smoothly, the fan enters the air between the testing table and the front cover along the air inlet inclined plane, the testing pointer rotates along with the flowing of the air, and the air is finally transmitted out of the testing support along the air outlet inclined plane. The tester can intuitively judge whether the fan is delivering gas or not through testing whether the pointer deflects or not, so as to achieve the purpose that the test fan is controlled by a circuit to operate.

Compared with the prior art, the fan test tool has the advantages that:

the fan wind-conveying device has the advantages of simple structure, convenience in disassembly and assembly, low detection cost and high efficiency, and can intuitively reflect the working state of whether the fan conveys wind or not by utilizing the rotation of the test pointer.

Drawings

FIG. 1 is a schematic diagram of a fan test fixture;

FIG. 2 is a schematic view of the front cover;

FIG. 3 is a schematic diagram of a connection structure of a test pointer and a pointer connection mechanism;

fig. 4 is a schematic diagram of a balance frame structure.

Detailed Description

The utility model is further described below with reference to the drawings and specific examples.

1-2, the fan test tool comprises a test support 1, a front cover 2, a test pointer 3 and a pointer connecting mechanism 4;

the test support 1 is concave, and the test support 1 comprises an air inlet inclined plane 11, an air outlet inclined plane 12 and a test bench 13; the test bench 13 is positioned between the air inlet inclined surface 11 and the air outlet inclined surface 12, the air inlet end of the air inlet inclined surface 11 is the lowest, and the air outlet end of the air outlet inclined surface 12 is the lowest; the inclined structures of the air inlet inclined plane 11 and the air outlet inclined plane 12 have a diversion effect on the air, so that the air transmitted by the fan can enter and exit from the test support 1 along the inclined planes. The test pointer 3 is positioned above the test bench 13, the test bench 13 is provided with a connecting groove 131, and one end of the test pointer 3 is connected to the connecting groove 131 through a pointer connecting mechanism 4;

the air collecting plates 14 are arranged on two sides of the air inlet inclined plane 11, the distance between the air inlet ends of the two air collecting plates 14 is the largest, so that generated air flow of a fan enters the test support 1 to the greatest extent, the distance between the two air collecting plates 14 close to the test table 13 is the smallest, the air flow is gathered, the air pressure is increased, and the rotating effect of the test pointer 3 is enhanced.

The test pointer 3 above the test bench 13 is provided with a windward plate 31, the windward plate 31 is V-shaped, and the test pointer 3 is fixed at the bottom of the windward plate 31. The windward plate 31 can increase the contact area between the test pointer 3 and the flowing gas, thereby further enhancing the rotation effect of the test pointer 3 affected by the air flow.

As shown in fig. 3 to 4, the pointer connection mechanism 4 includes a fixed ring 41, a connection post 42, a connection rod 46, and a torsion spring 45; the fixed ring 41 is fixed at the bottom of the connecting groove 131, the top of the fixed ring 41 is provided with two fixed rods 43, the top of the connecting column 42 is fixed with the fixed rods 43, and the connecting column 42 is positioned in the fixed ring 41; the connecting rod 46 is rotatably connected to the connecting post 42, and the test pointer 3 is fixed on the connecting rod 46; the fixed rod 43 is fixed with a torsion spring connecting piece 44, one end of a torsion spring 45 is fixed on the torsion spring connecting piece 44, and the other end of the torsion spring 45 is fixed on the test pointer 3;

preferably, two fixing bars 43 are located on both sides of the test pointer 3. The test pointer 3 is located the connected mode between two dead levers 43 for the dead lever 43 can play the connection effect to spliced pole 42, torsional spring 45, also can play the spacing effect to test pointer 3, prevents that it from making a round trip to rotate the range too big, and the card needle phenomenon that the pointer can't reset appears.

The pointer connection mechanism 4 further comprises a balance frame 47, two ends of the connection rod 46 extend out of the top and the bottom of the connection column 42 respectively, the balance frame 47 is connected to the outside of the connection column 42 through two ends of the connection rod 46, and the test pointer 3 is fixed to the connection rod 46 through the balance frame 47. Since the connecting post 42 is fixed by the fixing rod 43, it can be suspended in the fixing ring 41, i.e. the bottom of the connecting post is not contacted with the connecting groove 131, so that the rotation of the balance frame 47 is not affected.

Because the test pointer 3 is single pole structure, when the rotation range is too big, after the dead lever 43 on both sides is collided for a long time, test pointer 3 is buckled easily, influences the rotation effect, and balanced frame 47 can replace test pointer 3 to collide with dead lever 43, strengthens test pointer 3's life. The rectangular structure of the balance frame 47 allows the test pointer 3 to swing back and forth more smoothly due to the lighter weight of the pointer.

The front cover 2 is fixed on the test support 1, the front cover 2 and the test support 1 form a relatively closed gas circulation channel, and the front cover 2 is a transparent plate body, so that the rotation condition of the test pointer 3 can be observed by naked eyes conveniently; preferably, the test support 1 is provided with a threaded hole 15, the front cover 2 is provided with a through hole 22, and the screw 21 penetrates through the through hole 22 and the threaded hole 15 to detachably fix the front cover 2 on the test support 1, so that the front cover 2 is convenient to detach, and the test pointer 3 can be maintained when the needle clamping condition occurs.

According to the fan testing tool disclosed by the utility model, the air outlet of the fan to be tested is aligned with the air inlet of the air inlet inclined plane 11, a high-temperature environment is simulated, if the fan is started immediately, the fan enters gas between the test bench 13 and the front cover 2 along the air inlet inclined plane 11, the test pointer 3 rotates along with the flowing of the gas, and the gas is finally transmitted out of the test support 1 along the air outlet inclined plane 12. The tester can intuitively judge whether the fan is delivering gas or not through testing whether the pointer 3 deflects or not, so as to achieve the purpose that the test fan is controlled by a circuit to operate.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The fan test fixture is characterized by comprising a test support, a front cover, a test pointer and a pointer connecting mechanism;

the front cover is fixed on the test support, and is a transparent plate body.

2. The fan test fixture of claim 1, wherein the pointer connection mechanism further comprises a balancing frame, two ends of the connecting rod extend out of the top and the bottom of the connecting column respectively, the balancing frame is connected to the outside of the connecting column through two ends of the connecting rod, and the test pointer is fixed to the connecting rod through the balancing frame.

3. The fan test fixture of claim 1, wherein the test pointer above the test bench is provided with a windward plate, the windward plate is V-shaped, and the test pointer is fixed at the bottom of the windward plate.

4. The fan testing tool of claim 1, wherein two sides of the air inlet inclined plane are provided with air collecting plates, the distance between the air inlet ends of the two air collecting plates is largest, and the distance between the two air collecting plates close to the test bench is smallest.

5. The fan testing tool of claim 1, wherein two of the fixing rods are located on both sides of the test pointer.

6. The fan test fixture of claim 1, wherein the test support is provided with a threaded hole, the front cover is provided with a through hole, and a screw is passed through the through hole and the threaded hole to detachably fix the front cover to the test support.