CN212882492U - Drawer type high-low temperature test box - Google Patents

Abstract

The utility model discloses a drawer type high and low temperature test box, which comprises a box body, wherein the box body comprises a first inner cavity and a second inner cavity; a supporting frame is arranged in the first inner cavity, a supporting cross rod is arranged on the supporting frame, a dovetail groove is formed in the supporting cross rod, a dovetail strip is arranged on a supporting plate of the sample box, and the dovetail strip on the supporting plate is in sliding fit with the dovetail groove on the supporting cross rod, so that the sample box slides between the supporting cross rods, the replacement of a sample is conveniently realized, and the energy consumption is reduced; and a first bevel gear driven by a motor to rotate and a second bevel gear meshed with the first bevel gear are arranged in the second inner cavity, and the second bevel gear rotates to drive a lead screw arranged at the center of the second bevel gear to rotate, so that the sliding block on the lead screw and the fan device move back and forth. The utility model discloses novel structure has both solved the sample and has got the inconvenient problem of putting, has realized the air again in sample box both sides inner loop, makes the sample be heated evenly, improves measurement accuracy.

Description

Drawer type high-low temperature test box

Technical Field

The utility model relates to a drawer type high low temperature test box is applied to test equipment technical field.

Background

The high-low temperature test box is used for testing the high-temperature and low-temperature reliability of industrial products by placing the products at a specified temperature and considering the high-temperature and low-temperature resistance of the products. The performance indexes of parts and materials of related products such as electronics, electricians, automobiles, motorcycles, aerospace, ships, weapons, universities, research institutions and the like are tested under the condition of high temperature and low temperature (alternating) cyclic change.

If a publication number is CN206295960U, a high and low temperature test box is disclosed, which comprises a detachable base, a main box body and a detachable control box, wherein the detachable base, the main box body and the detachable control box are assembled into the high and low temperature test box from bottom to top in sequence; a condenser, a compressor, an evaporator, a humidifier, a heating wire and a circulating wind wheel are arranged in the main box body, and the condenser, the compressor and the evaporator are sequentially connected; the humidifier is connected with the evaporator, the heating wire and the circulating wind wheel in sequence. When the high-low temperature test box works, air enters the circulating wind wheel after being subjected to temperature and humidity adjustment, and the circulating wind wheel fully stirs and uniformly mixes the air and then discharges the air into the test box, so that the temperature and humidity distribution of the air in the test box is more uniform. And the high-low temperature test box is formed by sequentially assembling a detachable base, a main box body and a detachable control box, so that the product is convenient to transport and place.

The problem that prior art exists is, need wait to take out the sample after the test box internal test environment recovers external environmental condition at present after the current high low temperature test box on the market accomplishes a measurement cycle, then put into next batch sample that awaits measuring, test after recovering test box internal test condition, there is getting of sample to put inconveniently, the big scheduling problem of energy consumption.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art, the utility model discloses an adopt drawer type sample box, conveniently realize the change of sample to set up two wind channels, made two wind channels carry out air cycle simultaneously and flow, made sample thermally equivalent, improved measurement accuracy, gained better technological effect. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a drawer type high low temperature test box, includes the box, its characterized in that: the box body is hinged with a box door, the outer wall of the box body is further provided with a control panel, and a first inner cavity and a second inner cavity are arranged inside the box body.

The sample box comprises a supporting plate, a side plate and a front baffle, wherein the supporting plate and the side plate are provided with vent holes, the vent holes are uniformly distributed on the supporting plate and the side plate, the front baffle is provided with a handle, and the supporting plate is provided with a dovetail strip.

The fan device is characterized in that a motor is installed on the side edge of the second inner cavity, a bevel gear shaft is connected onto the motor, the top end of the bevel gear shaft extends into the second inner cavity, a first bevel gear is installed at the end of the bevel gear shaft, a second bevel gear is installed on the inner wall of the second inner cavity, the first bevel gear and the second bevel gear are vertically arranged and are meshed with each other, a lead screw is installed at the center of the second bevel gear, a sliding block is arranged on the lead screw, and a.

A gap is formed between the sample box and the inner walls of the two sides of the first inner cavity; the top of the second inner cavity is provided with a group of wind direction plates, and the wind direction plates incline towards the direction of the fan; the bottom of the box body is provided with universal wheels.

The utility model has the advantages that: the utility model relates to a drawer type high-low temperature test box, which realizes the extraction of a sample box through a dovetail groove structure, is convenient for taking and placing samples, improves the test efficiency and reduces the energy consumption; and the fan makes the air flow, and the air that flows gets into two wind channels along the layer board of sample box to the ventilation hole between the lateral plate, forms air cycle, reduces the inhomogeneous possibility of being heated, has improved measurement accuracy.

Drawings

FIG. 1 is a front view of the drawer-type high and low temperature test chamber of the present invention;

fig. 2 is a side view of the present invention.

In the figure: the device comprises a box body 1, a box door 2, a control panel 3, a first inner cavity 4, a support frame 41, a support cross bar 411, a dovetail groove 412, a sample box 42, a supporting plate 421, a side plate 422, a front baffle 423, a vent hole 424, a handle 425, a dovetail strip 426, a second inner cavity 5, a motor 51, a bevel gear shaft 52, a first bevel gear 521, a second bevel gear 522, a lead screw 523, a sliding block 524, a fan device 525, a wind direction plate 53 and a universal wheel 6.

Detailed Description

Referring to fig. 1 and 2, the drawer type high and low temperature test chamber comprises a chamber body 1, a chamber door 2 is hinged on the chamber body 1, a control panel 3 is further arranged on the outer wall of the chamber body 1, and a first inner chamber 4 and a second inner chamber 5 are arranged inside the chamber body 1.

The first inner cavity 4 is provided with support frames 41, support cross bars 411 are arranged between the support frames 41, the support cross bars 411 are distributed on the support frames 41 at equal intervals, dovetail grooves 412 are arranged on the support cross bars 411, at least one sample box 42 is also arranged in the first inner cavity 4, and a gap is left between the sample box 42 and the inner walls of the two sides of the first inner cavity 4, the sample box comprises a supporting plate 421, a side plate 422 and a front baffle 423, wherein, be equipped with ventilation hole 424 on layer board 421 and the curb plate 422, evenly distributed is on layer board 421 and curb plate 422, install handle 425 on the preceding baffle 423, make things convenient for sample box 42's extraction, the both sides of layer board 421 are equipped with dovetail 426, dovetail 412 on the support horizontal pole 411 and dovetail 426 sliding fit on the layer board 421 make sample box 42 slide on dovetail 412 in supporting horizontal pole 411, be equipped with the backup pad between first inner chamber 4 and the second inner chamber 5, be equipped with the opening in the centre of backup pad.

A motor 51 is installed on the side edge of the second inner cavity 5, a bevel gear shaft 52 is connected to the motor 51, the top end of the bevel gear shaft 52 extends into the second inner cavity 5, a first bevel gear 521 is installed at the end of the bevel gear shaft, a second bevel gear 522 is installed on the inner wall of the second inner cavity 5, the first bevel gear 521 and the second bevel gear 522 are vertically arranged and meshed with each other, a lead screw 523 is installed at the center of the second bevel gear 522, a sliding block 524 is arranged on the lead screw 523, a fan device 525 is installed on the sliding block 524, and the fan device 525 comprises a driving motor which drives the; the top of the second inner cavity 5 is provided with a group of wind direction plates 53, and the wind direction plates 53 incline towards the direction of the fan 525; a refrigerating device and a heating device are also arranged in the second inner cavity 5 to heat and cool the inner cavity, the refrigerating device and the heating device can also be arranged outside the box body, and hot air and cold air are blown into the second inner cavity 5 through an air inlet pipe; the bottom of the box body 1 is also provided with universal wheels 6, so that the box body 1 can be conveniently carried.

The drawer type high-low temperature test box adopts a stable-performance industrial control system (PLC) as a central control system, and realizes the operation control of the whole machine and the automation of the whole process of the high-low temperature test by using the control panel 3.

The utility model discloses a theory of operation and use flow are as follows: firstly, a sample is placed in a sample box 42, the sample box 42 slides into a dovetail groove 412 on a supporting cross bar 411 through a dovetail strip 426 on a supporting plate 421, a box door 2 is closed, a power supply is switched on, and a motor 51 and a refrigerating device or a heating device are started; the motor 51 drives the bevel gear shaft 52 to rotate, further drives the first bevel gear 521 and the second bevel gear 522 meshed with the first bevel gear 521 to rotate, the second bevel gear 522 drives the screw 523 to rotate, and further drives the slider 524 on the screw 523 and the fan device 525 to move back and forth; the fan 525 blows the air heated or cooled by the heating device or the cooling device to the sample through the vent holes on the support plate 421, and then flows to the gaps at the two sides of the sample box 42 through the vent holes 424 on the side plate 422, so as to form two circulating air flows to realize the air circulation in the first inner cavity 4.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims (5)

1. The utility model provides a drawer type high low temperature test box, includes box (1), its characterized in that: a box door (2) is hinged on the box body (1), a control panel (3) is further arranged on the outer wall of the box body (1), and a first inner cavity (4) and a second inner cavity (5) are arranged in the box body (1);

be equipped with support frame (41) in first inner chamber (4), be equipped with between support frame (41) and support horizontal pole (411), be equipped with dovetail (412) on supporting horizontal pole (411), still be equipped with at least one sample box (42) in first inner chamber (4), sample box (42) are including layer board (421), curb plate (422) and preceding baffle (423), and wherein, be equipped with ventilation hole (424) on layer board (421) and curb plate (422), evenly distributed is on layer board (421) and curb plate (422), installs handle (425) on preceding baffle (423), is equipped with dovetail (426) on layer board (421).

2. The drawer-type high-low temperature test chamber as claimed in claim 1, wherein: motor (51) are installed to the side of second inner chamber (5), be connected with bevel gear axle (52) on motor (51), first bevel gear (521) are installed to the top of bevel gear axle (52) and the end in extending to second inner chamber (5), install second bevel gear (522) on the inner wall of second inner chamber (5), first bevel gear (521) and second bevel gear (522) are laid perpendicularly and both are meshed, lead screw (523) are installed to the center of second bevel gear (522), be equipped with slider (524) on lead screw (523), install fan unit (525) on slider (524).

3. The drawer-type high-low temperature test chamber as claimed in claim 1, wherein: and a gap is reserved between the sample box (42) and the inner walls of the two sides of the first inner cavity (4).

4. The drawer-type high-low temperature test chamber as claimed in claim 2, wherein: the top of the second inner cavity (5) is provided with a group of wind direction plates (53), and the wind direction plates (53) incline towards the direction of the fan device (525).

5. The drawer-type high-low temperature test chamber as claimed in claim 1, wherein: the universal wheels (6) are installed at the bottom of the box body (1).

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