CN116223745A

CN116223745A - Clamp device for gas sensor test

Info

Publication number: CN116223745A
Application number: CN202310368297.6A
Authority: CN
Inventors: 古瑞琴; 徐永军; 王慧; 王鸿杰
Original assignee: Shanxi Tengxing Sensing Technology Co ltd
Current assignee: Shanxi Tengxing Sensing Technology Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-06-06

Abstract

The application relates to a fixture device for gas sensor test belongs to the technical field of sensor test fixture, one side that its test box deviates from check out test set is provided with the fixed station, one side of fixed station has set firmly the supporting seat, one side that check out test set deviates from the test box is provided with the hanger plate, fixed connection between hanger plate and the supporting seat, the through-hole has been seted up to the lateral wall of hanger plate orientation check out test set, sliding connection has the lead screw in the through-hole, the circumference lateral wall threaded connection of lead screw has the thread bush, rotate between thread bush and the hanger plate to be connected, the one end that the hanger plate was kept away from to the lead screw has set firmly the mount pad, the mounting groove has been seted up to the lateral wall that the mount pad deviates from the lead screw, check out test set installs in the mounting groove, be provided with the charging tray between mount pad and the fixed station, one side of thread bush is provided with the drive screw bush pivoted drive assembly, this application has the effect of reduction staff's intensity of labour.

Description

Clamp device for gas sensor test

Technical Field

The application relates to the technical field of sensor test fixtures, in particular to a fixture device for testing a gas sensor.

Background

In construction sites in the fields of petroleum, chemical industry, natural gas, metallurgy, thermal power generation and the like, harmful gases have the danger of leakage at any time, the gas sensor for detecting the concentration of the harmful gases is widely applied to the sites, and when the leaked harmful gases reach the set concentration, the gas sensor sends out signals and alarms, corresponding measures are taken at the first time, so that the safety of on-site workers is ensured.

In the development stage of the gas sensor product, various performance parameters of the gas sensor are tested, and the output voltage condition of the sensor is recorded so as to be used as a reference for designing the product. Detection equipment and a test box are often used in the gas sensor testing process, a worker manually connects pins of each sensor with the detection equipment one by one, then the detection equipment and the sensors are placed into the test box together, the numerical value transmitted by the detection equipment is observed and recorded, after detection is completed, the worker manually takes out the detection equipment and the sensors from the test box, and meanwhile, the sensors are detached from the detection equipment.

Aiming at the related technology, the inventor considers that a large amount of manual operation is needed by a worker in the detection process of the sensor, the worker is easy to fatigue after long-time manual operation, and the defect of high labor intensity of the worker exists.

Disclosure of Invention

In order to reduce the labor intensity of staff, the application provides a fixture device for gas sensor test.

The application provides a fixture device that gas sensor test used adopts following technical scheme:

the utility model provides a fixture device that gas sensor test was used, includes check out test set and test box, one side that the test box deviates from check out test set is provided with the fixed station, one side of fixed station has set firmly the supporting seat, one side that check out test set deviates from the test box is provided with the hanger plate, fixed connection between hanger plate and the supporting seat, the through-hole has been seted up to the lateral wall of hanger plate orientation check out test set, sliding connection has the lead screw in the through-hole, the circumference lateral wall threaded connection of lead screw has the thread bush, rotate between thread bush and the hanger plate to be connected, the one end that the hanger plate was kept away from to the lead screw has set firmly the mount pad, the mounting groove has been seted up to the lateral wall that the mount pad deviates from the lead screw, check out test set installs in the mounting groove, be provided with the charging tray between mount pad and the fixed station, one side of thread bush is provided with the drive screw bush pivoted actuating assembly.

Through adopting above-mentioned technical scheme, staff removes the charging tray and inserts the pin of all sensors together on check out test set, and drive assembly makes the lead screw remove through the thread bush, before detecting the sensor, and the lead screw passes through the mount pad with check out test set and sensor put into the test box, after detecting the sensor, the lead screw passes through the mount pad with check out test set and sensor follow test box. Through the structure, manual operation of staff is reduced, and therefore the effect of reducing the labor intensity of the staff is achieved.

Optionally, the hanger plate has set firmly first stopper in the through-hole, and the lateral wall of lead screw has seted up the first spacing groove with first stopper slip adaptation.

Through adopting above-mentioned technical scheme, the lead screw removes and makes first stopper along first spacing groove slip, and first stopper makes the lead screw be difficult for rotating along with the thread bush to realized spacing effect to the lead screw.

Optionally, the through hole has all been run through to the four corners position of mount pad, sliding connection has first threaded rod in the through hole, the one end threaded connection of first threaded rod has first adjusting collar, rotate between first adjusting collar and the mount pad and be connected, the other end of first threaded rod has set firmly the regulating plate, the regulating plate runs through a plurality of first hole of dodging towards the surface of mount pad, one side that the regulating plate deviates from first threaded rod is provided with the regulating table, a plurality of second is run through towards the surface of regulating plate and is dodged the hole, the charging tray sets up between regulating plate and regulating table, be provided with the drive subassembly that drives first adjusting collar pivoted between first adjusting collar and the threaded collar, be provided with the linkage subassembly that drives the regulating table and remove between regulating table and the mount pad.

Through adopting above-mentioned technical scheme, the thread bush makes first adjusting collar rotate through drive assembly, and first adjusting collar makes first threaded rod motion, and the threaded rod makes the regulating plate be close to or keep away from check out test set, makes the regulating station be close to or keep away from the regulating plate through linkage assembly simultaneously. Before detection, the regulating table is close to the regulating plate, and the regulating plate is close to the detection equipment, so that pins of the sensor are inserted into the detection equipment, after detection is completed, the regulating plate is far away from the detection structure, and the regulating table is far away from the regulating plate, so that the sensor is separated from the detection equipment. Through above structure, replace artifical manual connection or dismantlement sensor and check out test set to further realized reducing staff intensity of labour's effect.

Optionally, the drive assembly includes first gear, second gear, telescopic link and third gear, and first gear sets firmly on the thread bush, and the second gear cover is established in the one end that the hanger plate was kept away from to the lead screw, rotates between second gear and the mount pad to be connected, and the telescopic link sets firmly between first gear and second gear, and the quantity of third gear is the same and one-to-one with first adjusting collar's quantity, and the third gear sets firmly on first adjusting collar, and the second gear meshes with the third gear.

Through adopting above-mentioned technical scheme, the thread bush rotates and makes first gear rotate, and first gear makes the second gear rotate through the telescopic link, and the telescopic link is in tensile or reset state this moment, and the second gear makes first adjusting collar rotate through the third gear to realized that the thread bush passes through drive assembly and drives first adjusting collar pivoted effect.

Optionally, the drive assembly includes driving motor and fourth gear, has seted up the cavity in the hanger plate, and driving motor installs in the cavity, and driving motor's output shaft runs through the hanger plate and stretches out to the outside, and the fourth gear sets firmly on driving motor's output shaft, and first gear and fourth gear meshing are connected.

Through adopting above-mentioned technical scheme, driving motor starts and makes fourth gear rotate, and fourth gear makes first gear rotate, and first gear makes the thread bush rotate to realized the effect that the drive assembly drove thread bush pivoted.

Optionally, the linkage subassembly includes four second threaded rods, four second adjusting sleeves, four fifth gears, four second adjusting sleeves set firmly respectively in the four corners position of regulating table, second threaded rods and second adjusting sleeve one-to-one, the second threaded rods sets up in the second adjusting sleeve and threaded connection between the two, the one end that second adjusting sleeve was kept away from to the second threaded rods runs through the regulating plate, the one end fixed connection that regulating table was kept away from to fifth gears and second threaded rods, meshing connection between fifth gears and the one-to-one and the two, the one end cover that the second threaded rods is close to the fifth gears is equipped with the backup pad, the through groove that is used for the second threaded rods to pass has been run through on the backup pad surface, the lateral wall annular of second threaded rods in the through groove has set firmly the slider, the spout with slider slip adaptation is seted up to the inner wall annular of backup pad department in the through groove, one side and mount pad fixed connection of backup pad.

By adopting the technical scheme, the third gear rotates to enable the fifth gear to rotate, the fifth gear rotates the second threaded rod, the second threaded rod enables the second adjusting sleeve to move, and the second adjusting sleeve enables the adjusting table to be close to or far away from the adjusting piece; the mounting seat supports the second screw rod through the support plate and the sliding block, so that the second screw rod stably rotates. Through the structure, the effect that the linkage assembly drives the adjusting table to move is achieved.

Optionally, a stop is fixedly arranged at one end of the second threaded rod far away from the fifth gear.

Through adopting above-mentioned technical scheme, the dog makes the second adjusting collar be difficult for breaking away from the second threaded rod to realized spacing effect to the second adjusting collar.

Optionally, a plurality of mounting hole has been seted up to the lateral wall that the charging tray deviates from mount pad one side, and the charging tray runs through at the inner wall that the mounting hole department deviates from the mount pad and has seted up two holes of stepping down, and two holes of stepping down set up relatively, are provided with a plurality of grip blocks in the mounting hole, and a plurality of grip blocks set up around the even interval of the central axis of mounting hole, have set firmly the spring between grip block and the charging tray.

Through adopting above-mentioned technical scheme, the staff runs through the hole of stepping down with the pin of sensor to place the sensor in the mounting hole, the spring release elasticity is fixed the sensor installation in the mounting hole through the grip block this moment, thereby has realized fixing the effect on the charging tray with the sensor.

Optionally, a positioning groove adapted to the insertion of the tray is formed in the surface of the adjusting table facing one side of the adjusting sheet.

Through adopting above-mentioned technical scheme, when the staff needs to change the charging tray, directly put into the constant head tank with new charging tray, can help the staff to fix a position the sensor pin fast and be connected with check out test set, realized the effect that improves detection efficiency.

Optionally, the mount pad has all set firmly the second stopper in the thru hole, and the second spacing groove of the sliding fit with the second stopper has been seted up to the lateral wall of first threaded rod.

Through adopting above-mentioned technical scheme, first threaded rod motion makes second stopper follow the second spacing groove and slides, and the second stopper makes first threaded rod be difficult for rotating along with first adjusting collar to realized spacing effect to first adjusting collar.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving assembly enables the screw rod to move through the threaded sleeve, so that the screw rod can put the detection equipment and the sensor into the test box or take the detection equipment and the sensor out of the test box through the mounting seat, manual operation of a worker is reduced, and the effect of reducing the labor intensity of the worker is achieved;

2. before detection, the regulating plate is close to the detection equipment, and the regulating table is close to the regulating plate, so that pins of the sensor are connected with the detection equipment, after detection is completed, the regulating plate is far away from the detection structure, and the regulating table is far away from the regulating plate, so that the sensor is separated from the detection equipment. Through the structure, the sensor and the detection equipment are connected or detached instead of manual operation, so that the labor intensity of workers is further reduced;

3. the positioning groove can help the staff to quickly position the position where the material tray is placed, so that the effect of improving the detection efficiency is achieved.

Drawings

FIG. 1 is a schematic view of a fixture device for testing a gas sensor according to an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating a linkage assembly structure according to an embodiment of the present application;

FIG. 3 is a schematic diagram showing the structure of a transmission assembly according to an embodiment of the present application;

FIG. 4 is a partial cross-sectional view of an embodiment of the present application showing the structure within the through hole;

FIG. 5 is a partial cross-sectional view of an embodiment of the present application showing the connection of a support plate to a second threaded rod;

FIG. 6 is a schematic view showing the installation of three structures of a regulating plate, a material tray and a regulating table according to the embodiment of the present application;

fig. 7 is a schematic diagram showing an in-hole structure of the mounting hole according to the embodiment of the present application.

In the figure, 1, a detection device; 2. a test box; 3. a fixed table; 31. a support base; 4. a hanger plate; 41. a through hole; 42. a screw rod; 421. a first limit groove; 43. a thread sleeve; 44. a first limiting block; 45. a cavity; 5. a mounting base; 51. a mounting groove; 52. a through hole; 53. a first threaded rod; 531. a regulating piece; 5311. a first avoidance hole; 532. the second limit groove; 54. a first adjustment sleeve; 55. a support plate; 551. a through groove; 552. a chute; 56. a second limiting block; 6. a material tray; 61. a mounting hole; 62. a relief hole; 63. a clamping block; 64. a spring; 7. a drive assembly; 71. a driving motor; 72. a fourth gear; 8. an adjustment table; 81. a second avoidance hole; 82. a positioning groove; 9. a transmission assembly; 91. a first gear; 92. a second gear; 93. a telescopic rod; 94. a third gear; 10. a linkage assembly; 101. a second threaded rod; 1011. a slide block; 1012. a stop block; 102. a second adjusting sleeve; 103. and a fifth gear.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a fixture device for gas sensor test.

Referring to fig. 1 and 2, a fixture device for gas sensor test includes check out test set 1 and test box 2, check out test set 1 sets up in the top of test box 2 and the two aligns, one side that check out test set 1 deviates from test box 2 is provided with mount pad 5, mount pad 5 inwards has seted up mounting groove 51 towards the diapire of check out test set 1 one side, mounting groove 51 runs through the lateral wall on mount pad 5 both sides, and check out test set 1 installs in mounting groove 51, have set gradually regulating plate 531, charging tray 6 and regulating table 8 along vertical direction between mount pad 5 and the test box 2.

Before detecting the sensor, the staff installs the sensor that needs to detect in charging tray 6, places charging tray 6 between regulating plate 531 and regulating table 8 again, and regulating table 8 drives charging tray 6 and is close to check out test set 1 after the device starts, and the pin of sensor is connected with check out test set 1, and mount pad 5 removes simultaneously and places regulating table 8 and charging tray 6 in test box 2, and regulating plate 531 seals test box 2 this moment. After the detection of the sensor is completed, the device is started again, the mounting seat 5 moves to take out the adjusting table 8 and the charging tray 6 from the test box 2, the adjusting sheet 531 moves to separate pins of the sensor from the detection equipment 1, and meanwhile the adjusting table 8 drives the sensor to be far away from the adjusting sheet 531 through the charging tray 6.

Referring to fig. 1, some of the test boxes 2 deviating from the mounting base 5 are provided with a fixing table 3, a fixing table 3 is fixedly connected with the test boxes 2, one side of the fixing table 3 is provided with a supporting base 31 along the vertical direction, the bottom of the supporting base 31 is fixedly connected with the bottom of the fixing table 3, and one end of the supporting base 31, far away from the fixing table 3, is fixedly connected with a hanger plate 4 along the horizontal direction.

Referring to fig. 1 and 3, a through hole 41 is formed in the bottom wall of the hanger plate 4, which faces the fixed seat, a screw rod 42 is slidably connected in the through hole 41, a first limiting block 44 is fixedly arranged in the through hole 41 by the hanger plate 4, a first limiting groove 421 which is slidably matched with the first limiting block 44 is formed in the side wall of one side of the screw rod 42 along the vertical direction, a threaded sleeve 43 is in threaded connection with the circumferential side wall of the screw rod 42, the threaded sleeve 43 is rotationally connected with the hanger plate 4, and the mounting seat 5 is fixedly connected with the top wall, which is far away from the fixed table 3, of the screw rod 42, which is far away from one end of the hanger plate 4.

Before detection, the threaded sleeve 43 rotates to drive the mounting seat 5 to move away from the hanging plate 4 through the lead screw 42 until the adjusting table 8 and the material tray 6 enter the test box 2; after the detection is completed, the threaded sleeve 43 rotates in the opposite direction, so that the threaded platform drives the mounting seat 5 to move in the direction approaching the hanger plate 4 through the lead screw 42. In the process of moving the screw rod 42 in the vertical direction, the screw rod 42 slides the first stopper 44 along the first stopper groove 421.

Referring to fig. 2 and 3, through holes 52 are all provided at four corners of the mounting seat 5, a first threaded rod 53 is slidably connected in the through holes 52, four first adjusting sleeves 54 are provided between the mounting seat 5 and the hanger plate 4, the first adjusting sleeves 54 are in one-to-one correspondence with the first threaded rods 53 and are in threaded connection with each other, the first adjusting sleeves 54 are rotatably connected with the mounting seat 5 towards the top wall of the hanger plate 4, and one end, far away from the first adjusting sleeves 54, of the first threaded rod 53 is fixedly connected with an adjusting piece 531.

Referring to fig. 4, the mounting base 5 is fixedly provided with a second limiting block 56 in the through hole 52, and a second limiting groove 532 slidably adapted to the second limiting block 56 is formed in the side wall of the first threaded rod 53.

Referring to fig. 3, a transmission assembly 9 is disposed between the first adjusting sleeve 54 and the threaded sleeve 43, the transmission assembly 9 includes a first gear 91, a second gear 92, a telescopic rod 93 and a third gear 94, the first gear 91 is sleeved on the circumferential side wall of the threaded sleeve 43 and fixedly connected with the first gear 92, the second gear 92 is sleeved on the circumferential side wall of the threaded rod 42 far away from one end of the hanger plate 4, the second gear 92 is rotatably connected with the mounting seat 5 towards the top wall of the threaded rod 42, the telescopic rod 93 has a multi-stage telescopic structure, the telescopic rod 93 includes an outer rod and an inner rod, the telescopic rod 93 is provided with two telescopic rods 93 which are respectively disposed on two sides of the threaded rod 42 in the vertical direction, two ends of the telescopic rod 93 are respectively fixedly connected with the first gear 91 and the second gear 92, the number of the third gear 94 is the same as and corresponds to that of the first adjusting sleeve 54, the third gear 94 is fixedly arranged on the circumferential side wall of the first adjusting sleeve 54, and the second gear 92 is meshed with the third gear 94

The screw sleeve 43 rotates to drive the first gear 91 to rotate, the first gear 91 rotates the second gear 92 through the telescopic rod 93, the second gear 92 drives the third gear 94 to rotate, the third gear 94 drives the first threaded rod 53 to move in the vertical direction, and therefore the first threaded rod 53 enables the second limiting block 56 to slide along the second limiting groove 532, and meanwhile the first threaded rod 53 drives the adjusting piece 531 to move.

Referring to fig. 2, a linkage assembly 10 is disposed between the third gear 94 and the adjusting table 8, the linkage assembly 10 includes a second threaded rod 101 and a fifth gear 103, the number of the fifth gears 103 is the same as the number of the third gears 94 and corresponds to one another, the fifth gears 103 are engaged with the third gears 94, the number of the second threaded rods 101 is the same as the number of the fifth gears 103 and corresponds to one another, the second threaded rods 101 are fixedly disposed in the fifth gears 103, a stop 1012 is fixedly disposed at one end of the second threaded rods 101 far away from the fifth gears 103, the second threaded rods 101 completely penetrate through the adjusting piece 531, and a supporting plate 55 is sleeved at the other end of the second threaded rods 101.

Referring to fig. 2 and 5, a through groove 551 for the second threaded rod 101 to pass through is formed in the surface of the support plate 55, a sliding block 1011 is fixedly arranged on the side wall ring of the second threaded rod 101 in the through groove 551, a sliding groove 552 which is slidably matched with the sliding block 1011 is formed on the inner wall ring of the support plate 55 at the through groove 551, and one side of the support plate 55 is fixedly connected with the mounting seat 5.

Referring to fig. 2, the linkage assembly 10 further includes second adjusting sleeves 102, the number of the second adjusting sleeves 102 is the same as that of the second threaded rods 101 and corresponds to that of the second threaded rods 101 one by one, the second adjusting sleeves 102 are sleeved on the circumferential side walls of the second threaded rods 101 and are in threaded connection with each other, and the four second adjusting sleeves 102 are fixedly connected with four corners of the adjusting table 8 respectively.

The third gear 94 rotates to drive the fifth gear 103 to rotate, the fifth gear 103 drives the second threaded rod 101 to rotate, the second threaded rod 101 drives the sliding block 1011 to slide along the sliding slot 552, and meanwhile, the second threaded rod 101 drives the adjusting table 8 to move in the vertical direction.

Referring to fig. 6, a positioning groove 82 adapted to the insertion of the tray 6 is formed in the top wall of the adjusting table 8 facing the adjusting plate 531, a plurality of second avoidance holes 81 are formed in the inner bottom wall of the positioning groove 82 of the adjusting table 8 in a penetrating manner, a plurality of first avoidance holes 5311 are formed in the bottom wall of the adjusting plate 531 facing the adjusting table 8 in a penetrating manner, and the number of the first avoidance holes 5311 and the number of the second avoidance holes 81 are the same and aligned one by one.

Referring to fig. 6 and 7, a plurality of mounting holes 61 are formed in the bottom wall of one side, facing away from the adjusting table 8, of the tray 6, the number of the mounting holes 61 is the same as that of the second avoidance holes 81, and the tray 6 penetrates through the inner top wall of the mounting seat 5 at the mounting hole 61 to form two relief holes 62, the two relief holes 62 are formed in two opposite sides of the mounting hole 61, a plurality of clamping blocks 63 are arranged in the mounting hole 61, in the embodiment of the application, the clamping blocks 63 are two, the two clamping blocks 63 are oppositely arranged in two sides of the mounting hole 61, and springs 64 are fixedly arranged between the clamping blocks 63 and the inner wall of the tray 6 at the mounting hole 61.

The staff aligns the pin of sensor with hole 62 of stepping down, and the removal sensor is placed the sensor between two grip blocks 63, and the pin of sensor runs through hole 62 and the second of stepping down and dodges hole 81 this moment, installs the sensor in the charging tray 6 in proper order after, and the staff places the charging tray 6 in the constant head tank 82, and the detecting head of sensor runs through the second and dodges hole 81 this moment.

Referring to fig. 3, a driving assembly 7 is disposed on one side of the screw sleeve 43, the driving assembly 7 includes a driving motor 71 and a fourth gear 72, a cavity 45 is formed in the hanger plate 4, the driving motor 71 is mounted in the cavity 45, an output shaft of the driving motor 71 penetrates through the hanger plate 4 and extends to the outside, the fourth gear 72 is sleeved at one end of the output shaft of the driving motor 71 extending out of the cavity 45, the fourth gear 72 is fixedly connected with the output shaft of the driving motor 71, and the first gear 91 is in meshed connection with the fourth gear 72.

The driving motor 71 is started to drive the fourth gear 72 to rotate, the fourth gear 72 drives the first gear 91 to rotate, the first gear 91 drives the threaded sleeve 43 to rotate, and the steering of the threaded sleeve 43 is changed by changing the steering of the output shaft of the driving motor 71.

The implementation principle of the clamp device for testing the gas sensor is as follows: the staff installs the sensor to be detected in the material tray 6 in turn, starts the rotating motor to rotate through the fourth gear 72 to enable the first gear 91 to drive the thread bush 43 to rotate, and the thread bush 43 puts the adjusting piece 531, the adjusting table 8 and the material tray 6 into the test box 2 through the lead screw 42 and the mounting seat 5; meanwhile, the first gear 91 drives the second gear 92 to drive the third gear 94 to rotate through the telescopic rod 93, the third gear 94 drives the adjusting piece 531 to be close to the mounting seat 5 through the first threaded rod 53, the third gear 94 also drives the adjusting table 8 to be close to the adjusting piece 531 through the fifth gear 103 by the second threaded rod 101, so that the sensor pins in the material tray 6 are connected with the detection equipment 1, and at the moment, the material tray 6 is clamped and fixed by the adjusting tray and the adjusting table 8; after the detection is completed, the driving motor 71 is turned over to reset the whole device. Through the structure, the effect of reducing the labor intensity of workers is achieved.

The embodiments of the present invention are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a fixture device for gas sensor test, includes check out test set (1) and test box (2), its characterized in that: one side that test box (2) deviates from test equipment (1) is provided with fixed station (3), one side of fixed station (3) has set firmly supporting seat (31), one side that test equipment (1) deviates from test box (2) is provided with hanger plate (4), fixed connection between hanger plate (4) and supporting seat (31), through-hole (41) have been seted up towards the lateral wall of test equipment (1) to hanger plate (4), sliding connection has lead screw (42) in through-hole (41), circumference lateral wall threaded connection of lead screw (42) has thread bush (43), rotate between thread bush (43) and hanger plate (4) and be connected, one end that hanger plate (4) were kept away from to lead screw (42) has set firmly mount pad (5), mounting groove (51) have been seted up to the lateral wall that hanger plate (42) deviate from to mount pad (5), install in mounting groove (51) test equipment (1), be provided with charging tray (6) between mount pad (5) and fixed station (3), one side of thread bush (43) is provided with drive thread bush (43) pivoted drive assembly (7).

2. A fixture device for gas sensor testing according to claim 1, wherein: the hanger plate (4) is fixedly provided with a first limiting block (44) in the through hole (41), and the side wall of the screw rod (42) is provided with a first limiting groove (421) which is in sliding fit with the first limiting block (44).

3. A fixture device for gas sensor testing according to claim 1, wherein: the four corners position of mount pad (5) has all run through and has been seted up thru hole (52), sliding connection has first threaded rod (53) in thru hole (52), one end threaded connection of first threaded rod (53) has first adjusting collar (54), rotate between first adjusting collar (54) and mount pad (5) and be connected, the other end of first threaded rod (53) has set firmly regulating plate (531), the surface of regulating plate (531) orientation mount pad (5) runs through a plurality of first hole (5311) of dodging, one side that deviates from first threaded rod (53) of regulating plate (531) is provided with regulating table (8), a plurality of second of dodging hole (81) have been run through to the surface of regulating table (8) orientation regulating plate (531), charging tray (6) set up between regulating plate (531) and regulating table (8), be provided with between first adjusting collar (54) and thread bush (43) drive first adjusting collar (54) pivoted drive subassembly (9), be provided with between regulating table (8) and mount pad (5) and drive linkage subassembly (10) that regulating table (8) removed.

4. A fixture device for gas sensor testing according to claim 3, wherein: the transmission assembly (9) comprises a first gear (91), a second gear (92), a telescopic rod (93) and a third gear (94), wherein the first gear (91) is fixedly arranged on a threaded sleeve (43), the second gear (92) is sleeved at one end, far away from a hanging plate (4), of a lead screw (42), the second gear (92) is rotationally connected with a mounting seat (5), the telescopic rod (93) is fixedly arranged between the first gear (91) and the second gear (92), the number of the third gears (94) is identical to that of the first adjusting sleeves (54) and corresponds to that of the first adjusting sleeves one by one, the third gears (94) are fixedly arranged on the first adjusting sleeves (54), and the second gears (92) are meshed with the third gears (94).

5. The fixture device for gas sensor testing of claim 4, wherein: the driving assembly (7) comprises a driving motor (71) and a fourth gear (72), a cavity (45) is formed in the hanging plate (4), the driving motor (71) is installed in the cavity (45), an output shaft of the driving motor (71) penetrates through the hanging plate (4) and extends out of the hanging plate, the fourth gear (72) is fixedly arranged on the output shaft of the driving motor (71), and the first gear (91) is connected with the fourth gear (72) in a meshed mode.

6. The fixture device for gas sensor testing of claim 4, wherein: the linkage assembly (10) comprises four second threaded rods (101), four second adjusting sleeves (102) and four fifth gears (103), the four second adjusting sleeves (102) are fixedly arranged at four corners of the adjusting table (8) respectively, the second threaded rods (101) are in one-to-one correspondence with the second adjusting sleeves (102), the second threaded rods (101) are arranged in the second adjusting sleeves (102) and are in threaded connection with each other, one ends of the second threaded rods (101) away from the second adjusting sleeves (102) penetrate through adjusting sheets (531), the fifth gears (103) are fixedly connected with one ends of the second threaded rods (101) away from the adjusting table (8), the fifth gears (103) are in one-to-one correspondence with the third gears (94) and are in meshed connection with each other, one ends of the second threaded rods (101) close to the fifth gears (103) are sleeved with supporting plates (55), through grooves (551) for the second threaded rods (101) to penetrate through are formed in the surfaces of the supporting plates, sliding blocks (1011) are annularly arranged on the side walls of the inside the through grooves (551), one sides of the supporting plates (55) are fixedly connected with one sides of the sliding blocks (1011), and the sliding blocks (55) are arranged at one sides of the sliding blocks (551).

7. The fixture device for gas sensor testing of claim 6, wherein: one end of the second threaded rod (101) far away from the fifth gear (103) is fixedly provided with a stop block (1012).

8. A fixture device for gas sensor testing according to claim 3, wherein: the lateral wall that charging tray (6) deviates from mount pad (5) one side has seted up a plurality of mounting hole (61), and charging tray (6) runs through in mounting hole (61) department and has seted up two holes of stepping down (62) deviating from the inner wall of mount pad (5), and two holes of stepping down (62) set up relatively, are provided with a plurality of grip blocks (63) in mounting hole (61), and a plurality of grip blocks (63) set up around the central axis of mounting hole (61) even interval, have set firmly spring (64) between grip block (63) and charging tray (6).

9. The fixture device for gas sensor testing of claim 8, wherein: the surface of the adjusting table (8) facing one side of the adjusting sheet (531) is provided with a positioning groove (82) which is in plug-in fit with the material tray (6).

10. A fixture device for gas sensor testing according to claim 3, wherein: the mounting seat (5) is fixedly provided with second limiting blocks (56) in the through holes (52), and second limiting grooves (532) which are in sliding fit with the second limiting blocks (56) are formed in the side walls of the first threaded rods (53).