CN116242594A - A gas spring durability test box - Google Patents

Abstract

The invention relates to the technical field of gas spring durability test box, in particular to a gas spring durability test box, which includes a box body, a side plate connected with the box body, a temperature and humidity adjustment device, a controller and a test body; the box body The left side is connected with a side panel, the front is provided with a perspective glass, the interior is equipped with a temperature and humidity adjustment device and a test body, and the bottom is supported by universal wheels; the perspective glass is provided with a controller; the controller is connected with the temperature and humidity adjustment device Electrically connected to the test body. The beneficial effect of the present invention is that the temperature and humidity in the box can be controlled by the controller for testing, and an induction counting mechanism is provided to make the test durability data clearer, and it is convenient to carry out analog tests under the same conditions.

Description

A gas spring durability test box

technical field

The invention relates to the technical field of a gas spring durability test box, in particular to a gas spring durability test box.

Background technique

Gas spring is an industrial accessory that can support, buffer, brake, height adjust and angle adjust. It is widely used in automobile, aviation, medical equipment, furniture, machinery manufacturing and other fields. Therefore, the performance of gas spring It is very important, and an important aspect to judge the quality of gas springs is the durability of gas springs. Generally, gas springs are suitable for most environments, but in high humidity, high temperature changes and various other working environments, whether the internal cylinder barrel, support rod, and piston internal gasket materials of the gas spring can adapt to this change will not work. Whether the force value will change after a hundred times and whether the gas inside the gas spring will leak due to high humidity and high temperature changes are all important parts of the gas spring test. In particular, gas springs are usually used to support the back door of the trunk of a car, and when the car encounters rain, snow, wet weather or high temperature exposure, the change of the gas spring will make it difficult to close the back door of the trunk of the car .

The utility model with the patent number CN208921421U discloses a gas spring durability tester, which solves the problems of single test sample, cumbersome test and inaccurate test data in the prior art, but because the gas spring is used in different scenarios The temperature and humidity environments are also different. The tester lacks control of the temperature and humidity environment, and the durability test is not perfect.

Contents of the invention

In order to overcome the deficiency that the existing test equipment cannot control the temperature and humidity, the invention provides a gas spring durability test box.

The technical solution adopted by the present invention to solve the technical problem is: a gas spring durability test box, including a box body, a side plate connected with the box body, a temperature and humidity adjustment device, a controller and a test body; the left side of the box body The side is connected with a side panel, the front is provided with a perspective glass, the interior is equipped with a temperature and humidity adjustment device and a test body, and the bottom is supported by universal wheels; the see-through glass is provided with a controller; the controller is connected with the temperature and humidity adjustment device and the test body. The test body is electrically connected; the temperature and humidity adjustment device includes a temperature sensor, a humidity sensor, a dehumidification device, a humidification device, a temperature adjustment device and an internal circulation device, all of which are electrically connected to the controller; the circulation device is fixed inside the box On the rear side, a temperature adjustment device is installed inside, and the dehumidification device and humidification device are fixed on the top of the box; the temperature sensor and humidity sensor are fixed on the test body.

According to another embodiment of the present invention, it further includes that the test body includes a driving cylinder, a position switch, an induction counting mechanism, a fixing fixture, and a sample to be tested; the driving cylinder is fixed on the top of the box, and is connected to the fixing plate through an output shaft , the fixed plate is connected to the sample to be tested by a fixing fixture; a bottom limit block is provided below the sample to be tested; four guide posts are fixed around the bottom limit block, and the bottom is fixed on the bottom plate of the box; The guide column is covered with a fixed plate; the fixed fixture is provided with a position switch; the guide column is provided with an adjusting nut, and the base plate is provided with an induction counting mechanism; the induction counting mechanism, the position switch and the drive The cylinder is electrically connected with the controller.

According to another embodiment of the present invention, it further includes that the fixing fixture includes a splint 1 and a splint 2; the splint 2 is provided with several sets of clamping holes; the splint 1 is provided with several sets of clamping holes corresponding Matching clamping piece; the clamping piece is a cylindrical structure with a diameter smaller than the diameter of the upper side of the sample to be tested, and a concave cavity is provided on the surface; the clamping hole is provided with elastic teeth that match the cavity ; Both sides of the first splint and the second splint are fixedly connected by bolts.

According to another embodiment of the present invention, it further includes that the four corners of the fixing plate are provided with through holes for passing through the guide posts.

According to another embodiment of the present invention, it further includes that the induction counting mechanism is composed of a counter and a photoelectric switch, the counter and the photoelectric switch are connected through a signal line, and the emitting end of the photoelectric switch is aligned with the lower end of the fixing fixture, the counter and the photoelectric switch The photoelectric switches are all fixed on the bottom plate.

According to another embodiment of the present invention, it further includes that the lower end of the piston rod of the sample to be tested is matched with the engaging groove provided at the upper end of the bottom limiting block; the four corners of the bottom limiting block are fixed on the bottom plate by bolts.

According to another embodiment of the present invention, it further includes that the dehumidification device includes a dehumidification channel and a centrifugal fan; the dehumidification channel is arranged on the top of the box, inside the box with two barrels at one end, and a centrifugal fan is arranged inside; The front and rear ends of the dehumidification channel are provided with filter screens; the humidification device includes a water tank, a heater and an atomizer; the water tank is fixed on the top of the box, and a heater is installed inside, and one end is connected to the inside of the box through a humidification pipeline; The port of the humidification pipeline is provided with an atomizer.

According to another embodiment of the present invention, it further includes that the internal circulation device is fixed on the rear side of the box, and includes a circulating fan and a circulating air channel; the circulating air channel includes an air exhaust channel and an air intake channel; the exhaust air A circulating fan is provided between the air duct and the air inlet duct, and a temperature adjustment device is provided in the exhaust duct; the temperature adjustment device includes a cooling sheet and a heating block, and a partition The heat sheet is fixed inside the air exhaust channel; the air exhaust channel communicates with the upper side inside the box body through the air outlet channel, and the air inlet channel communicates with the lower side inside the box body through the air inlet channel opening.

According to another embodiment of the present invention, it further includes that the inner wall of the box is provided with an insulating layer, the glass is double-layered glass, and the gap between the two layers of glass is a vacuum; a seal for sealing is provided between the glass and the insulating layer The door seal; the side panel is a sealed door, hinged with the box; the bottom of the box is provided with a detachable water collection tank.

According to another embodiment of the present invention, it further includes that the controller includes a display screen, buttons, an input module, a control module, and an output module; the input module is electrically connected to the buttons, the temperature and humidity adjustment device, and the test body, so that One end of the control module is connected to the input signal of the input module, and the other end controls the output module; the output module is electrically connected with the display screen, the temperature adjustment device, and the test body.

The beneficial effect of the present invention is that it is convenient to control the temperature and humidity in the box for testing through the controller, and an induction counting mechanism is provided to make the test durability data clearer, and can satisfy analog tests under the same conditions.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a side view of the present invention;

Fig. 3 is the back view of the present invention;

Fig. 4 is the structural representation of temperature adjusting device;

Fig. 5 is a side sectional view of glass;

Fig. 6 is a flow chart of the controller module of the present invention;

Fig. 7 is a structural schematic diagram of a fixing fixture;

Fig. 8 is a partially enlarged view of part A in Fig. 7 .

In the figure 1. Cabinet, 2. Side panels, 3. Temperature and humidity adjustment device, 4. Controller, 5. Test body, 6. Glass, 7. Universal wheels, 8. Drive cylinder, 9. Position switch, 10 , induction counting mechanism, 11, fixed fixture, 12, sample to be tested, 13, bottom limit block, 14, guide column, 15, fixed plate, 16, adjusting nut, 17, bottom plate, 18, counter, 19, photoelectric switch , 20, temperature sensor, 21, humidity sensor, 22, dehumidification device, 23, humidification device, 24, temperature adjustment device, 25, internal circulation device, 26, dehumidification channel, 27, centrifugal fan, 28, water tank, 29, Heater, 30, atomizer, 31, humidification pipe, 32, circulation fan, 33, circulation air duct, 34, air exhaust duct, 35, air intake duct, 36, refrigeration sheet, 37, heating block, 38, Exhaust duct, 39, air intake duct, 40, insulation layer, 41, display screen, 42, button, 43, input module, 44, control module, 45, output module, 46, water collection tank, 47, plywood one, 48 , two splints, 49, clamping holes, 50, clamping parts, 51, concave cavity, 52, elastic locking teeth.

Detailed ways

Fig. 1 is a schematic structural view of the present invention, a gas spring durability test box, comprising a box body 1, a side plate 2 connected to the box body 1, a temperature and humidity adjustment device 3, a controller 4 and a test body 5; its characteristics Yes, the left side of the box body 1 is connected with a side panel 2, the front is provided with a perspective glass 6, the inside is provided with a temperature and humidity adjustment device 3 and a test body 5, and the bottom is supported by a universal wheel 7; There is a controller 4; the controller 4 is electrically connected to the temperature and humidity adjustment device 3 and the test subject 5; the temperature and humidity adjustment device 3 includes a temperature sensor 20, a humidity sensor 21, a dehumidification device 22, a humidification device 23, a temperature adjustment device The device 24 and the internal circulation device 25 are both electrically connected to the controller 4; the internal circulation device 25 is fixed on the rear side of the box body 1, and a temperature adjustment device 24 is arranged inside, and the dehumidification device 22 and the humidification device 23 are fixed On the top of the box 1 ; the temperature sensor 20 and the humidity sensor 21 are fixed on the test body 5 .

Specifically, the see-through glass 6 can facilitate observation of internal test conditions, the controller 4 can conveniently control the start and stop of the test body 5, and can control the temperature and humidity adjustment device 3 to adjust the temperature and humidity inside the box body 1 .

Specifically, the dehumidification device 22 and the humidification device 23 can cooperate to adjust the humidity in the box body 1, the temperature adjustment device 24 can control the temperature in the box body 1, and the internal circulation device 25 can speed up the air circulation, so that the box body 1 The temperature and humidity in all parts of the interior are the same, which meets the test conditions; the temperature sensor 20 and the humidity sensor 21 are fixed on the test body 5, and can be installed on the fixed plate 15 or the guide column 14, which is closer to the center of the box body 1 , get more accurate test temperature and humidity.

According to another embodiment of the present invention, it further includes that the test body 5 includes a driving cylinder 8, a position switch 9, an induction counting mechanism 10, a fixing fixture 11 and a sample to be tested 12; the driving cylinder 8 is fixed on the box body 1 The top is connected to the fixed plate 15 through the output shaft, and the fixed plate 15 is connected to the sample 12 to be tested by the fixing fixture 11; the bottom limit block 13 is provided below the sample to be tested 12; the bottom limit block 13 is fixed around There are four guide columns 14, the bottom of which is fixed on the bottom plate 17 of the box body 1; the guide columns 14 are covered with a fixed plate 15; the fixing fixture 11 is provided with a position switch 9; the guide column 14 is provided with Adjusting the nut 16, the bottom plate 17 is provided with an induction counting mechanism 10; the induction counting mechanism 10, the position switch 9 and the driving cylinder 8 are electrically connected with the controller 4.

Specifically, the induction counting mechanism 10 is convenient for testing the number of times of reciprocation, making the data of the durability test of the gas spring more intuitive; the fixed fixture 11 is provided with several groups, which can place multiple groups of samples 12 to be tested together, increasing The stability of the test results; the bottom limit block 13 can facilitate the piston of the gas spring to move up and down to achieve the test effect; the adjustment nut 16 of the guide column 14 is provided with at least two groups, and the position can be adjusted freely. Different lengths of gas springs can be used to select different heights. Every time the position switch 9 is touched, the position switch 9 will feed back the data to the controller 4, and the controller 4 can control the driving cylinder 8 to change the direction of motion, for example, when it is touched When the first adjusting nut 16 moves downward, it touches the second adjusting nut 16 to drive the cylinder 8 to move upward, and touches the first adjusting nut 16 again to move downward, so that the reciprocating motion is used to test the sample 12 to be tested. durability.

According to another embodiment of the present invention, it further includes that the fixing fixture 11 includes a splint 1 47 and a splint 2 48; the splint 2 47 is provided with several sets of locking holes 49; the splint 1 47 is provided with several A set of clamping parts 50 matched with the clamping hole 49; the clamping part 50 is a cylindrical structure, the diameter is smaller than the inner diameter of the upper circular hole of the sample 12 to be tested, and a concave cavity 51 is provided on the surface; the clamping position The inside of the hole 49 is provided with an elastic locking tooth 52 matching the cavity 51; the two sides of the first splint 47 and the second splint 48 are fixedly connected by bolts.

Specifically, the inner diameter of the round hole on the upper side of the sample 12 to be tested is larger than the clamping member 50, and the clamping member 50 is inserted into the round hole on the upper side of the sample to be tested 12, and then the elastic latch 52 is stuck in the cavity 51, and then the splint The first 47 and the two sides of the splint 48 are fixedly connected by bolts, so that several groups of samples 12 to be tested can be stuck and tested simultaneously.

According to another embodiment of the present invention, it further includes that four corners of the fixing plate 15 are provided with perforations for piercing the guide column 14, and can move up and down along the guide column 14 for reciprocating testing.

According to another embodiment of the present invention, it further includes that the induction counting mechanism 10 is composed of a counter 18 and a photoelectric switch 19, the counter 18 and the photoelectric switch 19 are connected by a signal line, and the emitting end of the photoelectric switch 19 is aligned with the fixing fixture 11 lower end, the counter 18 and the photoelectric switch 19 are all fixed on the bottom plate 17.

According to another embodiment of the present invention, it further includes that the lower end of the piston rod of the sample to be tested 12 matches the engagement groove provided at the upper end of the bottom stopper 13; the four corners of the bottom stopper 13 are fixed to the bottom plate 17 by bolts superior.

According to another embodiment of the present invention, it further includes that the dehumidification device 22 includes a dehumidification channel 26 and a centrifugal fan 27; There is a centrifugal fan 27; the front and rear ends of the dehumidification channel 26 are provided with filter screens; the humidifying device 23 includes a water tank 28, a heater 29 and an atomizer 30; the water tank 28 is fixed on the top of the box body 1, and the inside A heater 29 is provided, and one end is connected to the inside of the box body 1 through a humidification pipeline 31 ; an atomizer 30 is provided at the port of the humidification pipeline 31 .

Specifically, the dehumidification passage 26 discharges the high-humidity air through the centrifugal fan 27, and at the same time can suck in the external low-humidity air, quickly reducing the humidity inside the cabinet 1, and has a good dehumidification effect, and is simple in structure and easy to implement. The front and rear ends of the dehumidification passage 26 are provided with filter screens to prevent the entry of internal and external dust; The water evaporates to form water mist, which falls from the top of the box body 1 by its own gravity, so that the humidity inside the box body 1 is balanced.

According to another embodiment of the present invention, it further includes that the internal circulation device 25 is fixed on the rear side of the box body 1, and includes a circulation fan 32 and a circulation air duct 33; the circulation air duct 33 includes an exhaust air duct 34 and an air intake Road 35; a circulation fan 32 is provided between the air exhaust channel 34 and the air inlet channel 35, and a temperature regulating device 24 is provided in the air exhaust channel 34; the temperature regulating device 24 includes a cooling plate 36 and a heating block 37, a heat insulating sheet is provided between the cooling plate 36 and the heating block 37, and is fixed inside the exhaust duct 34; the exhaust duct 34 communicates with the upper side of the box body 1 through the exhaust duct opening 38, and the The air inlet channel 35 communicates with the lower side inside the box body 1 through the air inlet channel opening 39 .

Specifically, the circulation fan 32 circulates the air inside the box body 1, and the air circulates up and down, and the cooling plate 36 and the heating block 37 work according to the requirements of the controller 4 to heat or cool down the air so that the temperature reaches the required temperature. Requirements: The heat insulation sheet can make the cooling sheet 36 and the heating block 37 independent of each other, without affecting the other.

According to another embodiment of the present invention, it further includes that the inner wall of the box body 1 is provided with an insulating layer 40, the glass 6 is double-layer glass, and the gap between the two layers of glass is a vacuum, which can stabilize the temperature in the box body 1 Play the effect of heat preservation; The door seal that is used for sealing is arranged between described glass 6 and insulation layer 40, can play the effect of heat preservation; Described side plate 2 is convenient to take and place test sample 12 for the airtight door, and box body 1 is hinged; the bottom of the box 1 is provided with a detachable water collection tank 46, which can conveniently collect the water generated by the humidifying device 23 inside the box.

According to another embodiment of the present invention, it further includes that the controller 4 includes a display screen 41, buttons 42, an input module 43, a control module 44 and an output module 45; the input module 43 and the buttons 42, temperature and humidity adjustment device 3. The test main body 5 is electrically connected, one end of the control module 44 is connected to the input signal of the input module 43, and the other end controls the output module 45; the output module 45 is electrically connected to the display screen, the temperature adjustment device 24, and the test main body 5 .

Specifically, the position switch 9 and the induction counting mechanism 10 in the test body 5, the button 42 of the controller 4, the humidity sensor 21 and the temperature sensor 20 in the temperature and humidity adjustment device 3 transmit signals to the input module 43, input The module 43 transmits the signal to the control module 45, and the control module 45 classifies and processes different information, and transmits the signal that needs to be further output to the output module 45, and the drive cylinder 8 and the controller of the test subject 5 are controlled by the output module 45. The display screen 41 in 4, the centrifugal fan 27 in the dehumidification device 22, the heater 29 in the humidification device 23, the cooling plate 36 and the heating block 37 in the temperature adjustment device 24, and the circulation fan 32 in the internal circulation device 25 are detailed work.

During use, the sample 12 is placed through the side plate 2, and the internal temperature and humidity are adjusted through the buttons 42 according to the temperature and humidity displayed on the display screen 41, and the controller 4 outputs signals through the input module 43 according to the information of the buttons 42 and the temperature and humidity adjustment device 3 Transfer to the control module 44, the control module 44 controls the temperature and humidity adjustment device 3 through the output module 44 to adjust the temperature and humidity, when the temperature and humidity are determined, press the button 42 to start the test main body 5, so that the drive cylinder 8 moves downward, After the position switch 9 touches the adjusting nut 16, the feedback information will be sent to the controller 4, and then the driving cylinder 8 will move upwards, and the device will reciprocate up and down to test the durability of the gas spring. on the display screen 41 of the controller 4.

The above description is only illustrative, rather than restrictive, to the present invention. Those skilled in the art understand that many modifications, changes or the like can be made without departing from the spirit and scope defined by the appended claims. effect, but all will fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a gas spring durability test box, includes box (1), curb plate (2) that are connected with box (1), temperature and humidity regulating device (3), controller (4) and test main part (5); the device is characterized in that a side plate (2) is connected to the left side of the box body (1), perspective glass (6) is arranged in the front of the box body, a temperature and humidity adjusting device (3) and a testing main body (5) are arranged in the box body, and the bottom of the box body is supported by universal wheels (7); a controller (4) is arranged on the perspective glass (6); the controller (4) is electrically connected with the temperature and humidity adjusting device (3) and the testing main body (5); the temperature and humidity regulating device (3) comprises a temperature sensor (20), a humidity sensor (21), a dehumidifying device (22), a humidifying device (23), a temperature regulating device (24) and an internal circulation device (25), which are electrically connected with the controller (4); the internal circulation device (25) is fixed at the rear side of the inside of the box body (1), a temperature adjusting device (24) is arranged in the internal circulation device, and the dehumidifying device (22) and the humidifying device (23) are fixed at the top of the box body (1); the temperature sensor (20) and the humidity sensor (21) are fixed on the test body (5).

2. The gas spring durability test box according to claim 1, wherein the test body (5) includes a driving cylinder (8), a position switch (9), an inductive counting mechanism (10), a fixing jig (11), and a sample (12) to be tested; the driving cylinder (8) is fixed at the top of the box body (1), and is connected with the fixing plate (15) through an output shaft, and the fixing plate (15) is connected with the sample (12) to be tested through the fixing clamp (11); a bottom limiting block (13) is arranged below the sample (12) to be detected; four guide posts (14) are fixed around the bottom limiting block (13), and the lower part of the bottom limiting block is fixed on a bottom plate (17) of the box body (1); a fixed plate (15) is sleeved on the guide post (14); a position switch (9) is arranged on the fixed clamp (11); an adjusting nut (16) is arranged on the guide post (14), and an induction counting mechanism (10) is arranged on the bottom plate (17); the induction counting mechanism (10), the position switch (9) and the driving cylinder (8) are electrically connected with the controller (4).

3. The gas spring durability test-box according to claim 2, characterized in that the fixing clamp (11) comprises a clamping plate one (47) and a clamping plate two (48); a plurality of groups of clamping holes (49) are formed in the clamping plate II (47); a plurality of groups of clamping pieces (50) matched with the clamping holes (49) are arranged on the clamping plate I (47); the clamping piece (50) is of a cylindrical structure, the diameter of the clamping piece is smaller than the inner diameter of a round hole on the upper side of the sample (12) to be detected, and a concave cavity (51) is formed in the surface of the clamping piece; elastic clamping teeth (52) matched with the concave cavities (51) are arranged in the clamping holes (49); the two sides of the clamping plate I (47) and the clamping plate II (48) are fixedly connected through bolts.

4. The gas spring durability test box according to claim 2, wherein the four corners of the fixing plate (15) are provided with perforations for penetrating the guide posts (14).

5. The gas spring durability test box according to claim 2, wherein the sensing counting mechanism (10) is composed of a counter (18) and a photoelectric switch (19), the counter (18) and the photoelectric switch (19) are connected through a signal line, the transmitting end of the photoelectric switch (19) is aligned to the lower end of the fixing clamp (11), and the counter (18) and the photoelectric switch (19) are both fixed on the bottom plate (17).

6. The gas spring durability test box according to claim 2, wherein the lower end of the piston rod of the sample (12) to be tested is matched with a clamping groove formed at the upper end of the bottom limiting block (13); four corners of the bottom limiting block (13) are fixed on the bottom plate (17) through bolts.

7. The gas spring durability test-box according to claim 1, characterized in that the dehumidifying device (22) comprises a dehumidifying channel (26), a centrifugal fan (27); the dehumidifying channel (26) is arranged at the top of the box body (1), one end of the dehumidifying channel is provided with two barrels of boxes (1), and a centrifugal fan (27) is arranged in the boxes; the front end and the rear end of the dehumidifying channel (26) are provided with filter screens; the humidifying device (23) comprises a water tank (28), a heater (29) and an atomizer (30); the water tank (28) is fixed at the top of the tank body (1), a heater (29) is arranged in the water tank, and one end of the water tank is communicated with the inside of the tank body (1) through a humidifying pipeline (31); an atomizer (30) is arranged at the port of the humidifying pipeline (31).

8. The gas spring durability test-box according to claim 1, characterized in that the internal circulation device (25) is fixed at the rear side of the box body (1), and comprises a circulation fan (32) and a circulation air duct (33); the circulating air duct (33) comprises an exhaust duct (34) and an air inlet duct (35); a circulating fan (32) is arranged between the exhaust duct (34) and the air inlet duct (35), and a temperature regulating device (24) is arranged in the exhaust duct (34); the temperature regulating device (24) comprises a refrigerating sheet (36) and a heating block (37), a heat insulation sheet is arranged between the refrigerating sheet (36) and the heating block (37), and the heat insulation sheet is fixed in the exhaust duct (34); the exhaust duct (34) is communicated with the upper side of the interior of the box body (1) through an exhaust port (38), and the air inlet duct (35) is communicated with the lower side of the interior of the box body (1) through an air inlet port (39).

9. The gas spring durability test box according to claim 1, wherein an insulation layer (40) is arranged on the inner wall of the box body (1), the glass (6) is made of double-layer glass, and a gap between the two layers of glass is vacuum; a door seal for sealing is arranged between the glass (6) and the heat preservation layer (40); the side plate (2) is a sealing door and is hinged with the box body (1); the bottom of the box body (1) is provided with a detachable water collecting tank (46).

10. The gas spring durability test-box according to claim 1, characterized in that the controller (4) comprises a display screen (41), keys (42), an input module (43), a control module (44) and an output module (45); the input module (43) is electrically connected with the keys (42), the temperature and humidity adjusting device (3) and the testing main body (5), one end of the control module (44) is connected with an input signal of the input module (43), and the other end of the control module controls the output module (45); the output module (45) is electrically connected with the display screen, the temperature adjusting device (24) and the testing main body (5).

Images