Temperature and humidity instrument calibration equipment

Abstract

A placing table and an adjusting frame are arranged in a working cavity, the placing table is located in the adjusting frame, the adjusting frame comprises two adjusting plates, a supporting plate is connected to the placing table, the supporting plate is located between the placing table and the adjusting plates, and a placing groove and a sliding groove are formed in the side, close to the supporting plate, of the adjusting plate; a T-shaped block in sliding fit with the sliding groove is fixedly connected to the side, close to the adjusting plate, of the supporting plate, an avoiding groove is formed in the supporting plate, a transmission shaft is rotationally connected to the supporting plate, the transmission shaft penetrates through the avoiding groove and extends out of the supporting plate, a rack is fixedly connected into the containing groove, and a gear meshed with the rack is arranged in the avoiding groove. The gear is fixedly connected with a transmission shaft, the transmission shaft is sleeved with a transmission assembly, the transmission assembly is located between the containing table and the partition plate, the containing table is hollow, and a first driving piece for driving the transmission assembly to conduct transmission is arranged in the containing table. The method has the effect of improving the calibration efficiency of the temperature and humidity instrument.

Description

Technical Field

[0001] The present application relates to the technical field of instrument calibration, and in particular to a temperature and humidity instrument calibration device. Background Art

[0002] Temperature and humidity instruments refer to instruments, equipment or devices that can convert temperature and humidity into electrical signals that are easy to measure and process. They play an important role in various environmental, industrial and scientific applications.

[0003] In the prior art, the standard temperature and humidity chamber method is often used to calibrate the instrument equipment. This is a calibration method with high calibration accuracy and is suitable for occasions where high accuracy requirements are placed on temperature and humidity instruments.

[0004] During the calibration operation, the tester needs to adjust the reference position of the temperature and humidity meter being tested in the calibration box multiple times to obtain the values ​​of the temperature and humidity meter at different temperatures, humidities, and positions, thereby making the temperature and humidity meter more accurate.

[0005] However, during the test process, it is often necessary to open the calibration box door multiple times to adjust the position of the temperature and humidity instrument, thereby destroying the temperature and humidity environment in the calibration box. It is necessary to restart the equipment and wait until the temperature and humidity in the calibration box reach the calibration standard before the next test can be carried out. Summary of the invention

[0006] In order to improve the calibration efficiency of temperature and humidity instruments, the present application provides a temperature and humidity instrument calibration device.

[0007] The temperature and humidity instrument calibration equipment provided in this application adopts the following technical solution: A temperature and humidity instrument calibration device, comprising a calibration box and a box door hinged on the calibration box, wherein a partition plate is fixedly connected inside the calibration box, wherein the partition plate divides the calibration box into a placement chamber and a working chamber, wherein a placement table and an adjustment frame are arranged inside the working chamber, wherein the placement table is located inside the adjustment frame, wherein the adjustment frame comprises two adjustment plates, wherein a support plate is connected to the placement table, and wherein the support plate is located between the placement table and the adjustment plate, wherein a placement groove and a sliding groove are provided on one side of the adjustment plate close to the support plate, wherein a sliding groove that is slidably matched with the sliding groove is fixedly connected on one side of the support plate close to the adjustment plate A T-shaped block, an avoidance groove is opened on the support plate, a transmission shaft is rotatably connected to the support plate, the transmission shaft passes through the avoidance groove and extends out of the support plate, a rack is fixedly connected in the placement groove, a gear meshing with the rack is arranged in the avoidance groove, the gear is fixedly connected to the transmission shaft, a transmission assembly is sleeved on the transmission shaft, the transmission assembly is located between the placement table and the partition plate, the placement table is hollow, and a first driving member that drives the transmission assembly is provided in the placement table, a control platform is provided on the box door, and the first driving member is electrically connected to the control platform.

[0008] By adopting the above technical solution, at the beginning of the test, the tester places the temperature and humidity meter on the placement table, and then closes the box door. After calibrating a position, the tester starts the first drive member through the control platform, and the first drive member drives the transmission assembly and rotates the gear through the transmission shaft. Since the T-shaped block on the support plate is slidably connected to the sliding groove on the adjustment plate, the support plate and the placement table can move along the length direction of the adjustment plate, realizing the testing and calibration of the temperature and humidity meter at different positions, so that there is no need to adjust the position of the temperature and humidity meter by opening and closing the box door, avoiding waiting too long due to the destruction of the test environment, and greatly improving the calibration efficiency.

[0009] The cam is an adjustable frame, and two connecting plates are respectively connected to each other at two ends of the adjusting plate, and a guide groove is provided on the inner wall of the calibration box, and a guide block is slidably connected in the guide groove, and the guide block has a T-shaped cross-section, and a lifting block is fixedly connected to a side of the guide block close to the working chamber, and a rotating roller is rotatably connected to the lifting block on the side away from the guide block, and sprockets are provided at both ends of the rotating roller, and a fixing bar and a fixing plate are fixedly connected to the inner wall of the working chamber of the calibration box, and the fixing plate is located on the side close to the lifting block, and a chain meshing with the sprocket is wound around the sprocket, one end of the chain is connected to the adjusting plate, and the other end is respectively connected to the fixing bar and the fixing plate, and a screw is rotatably connected to the fixing plate, and the screw passes through the calibration box, and a second driving member for driving the screw to rotate is provided on the calibration box, and the second driving member is electrically connected to the control platform, and the lifting block cooperates with the screw thread.

[0010] By adopting the above technical solution, when the tester starts the second driving member through the control platform, the second driving member causes the screw to rotate. Since the lifting block cooperates with the screw thread, and the guide block has a T-shaped cross section, it not only plays a limiting role, but also has a guiding role. As a result, the lifting block can move up and down with the rotating roller and the sprockets at both ends of it, because one end of the chain is fixedly connected to the fixed plate and the fixed bar respectively, and the other end is fixedly connected to the adjustment frame. Therefore, when the rotating roller moves upward, the rotating roller rotates under the action of the sprocket and the chain, and the adjustment frame is pulled upward, thereby further adjusting the position of the temperature and humidity instrument, making the calibration test position more, not only improving the accuracy of the calibration, but also improving the calibration efficiency. The connecting plates at both ends of the adjustment plate not only make the adjustment frame uniform when moving, but also improve the stability of the adjustment frame when moving.

[0011] Optionally, a water tank and a water pump are placed in the placement cavity, a water inlet pipe is connected between the water pump and the water tank, the end of the water pump away from the water inlet pipe is connected to a water outlet pipe, the water outlet pipe passes through the partition plate, the rotating roller is hollow, and a plurality of atomizing nozzles are provided on the rotating roller, the end of the rotating roller away from the lifting block is connected to a hose, one end of the hose is sleeved on the rotating roller, and the other end is sleeved on the water outlet pipe, and the water pump is electrically connected to the control platform.

[0012] By adopting the above technical solution, when the rotating roller moves upward, the tester starts the water pump through the control platform, so that the water in the water tank enters the rotating roller and is then sprayed out through the atomizing nozzle, thereby adjusting the humidity of the test environment. In addition, since the rotating roller rotates during the upward movement, the water mist diffuses faster during the spraying process, meeting the test requirements and improving the calibration efficiency.

[0013] Optionally, the transmission assembly includes a small-diameter synchronous wheel, a large-diameter synchronous wheel and a synchronous belt. The small-diameter synchronous wheel is fixedly mounted on the transmission shaft and corresponds to the transmission shaft one-to-one. The large-diameter synchronous wheel is rotatably connected to the side of the placement table close to the partition plate. The large-diameter synchronous wheel is located between the two small-diameter synchronous wheels. The synchronous belts are meshed with the synchronous wheels. The large-diameter synchronous wheel is fixedly mounted on the output shaft of the first driving member.

[0014] By adopting the above technical solution, when the tester controls the platform to start the first driving member, the first driving member drives the large-diameter synchronous wheel to rotate, thereby driving the synchronous belt transmission and the two small-diameter synchronous wheels to rotate. When the small-diameter synchronous wheel rotates, the transmission shaft rotates and rotates with the gear, thereby changing the position of the support plate and the placement table, making the calibration of the temperature and humidity instrument more accurate and improving the calibration efficiency.

[0015] Optionally, a plurality of guide openings are provided on the top surface of the placing table, and clamping plates corresponding to the guide openings are slidably connected in the guide openings. Two guide rods are staggered through the placing table up and down. The clamping plates extend into the placing table and are slidably connected to the guide rods. A reset piece is sleeved on the guide rods, and the reset piece is located between the inner wall of the placing table and the clamping plate.

[0016] By adopting the above technical solution, the clamping plate can clamp the temperature and humidity instrument, and the reset part not only allows the placement table to use temperature and humidity instruments of different models and specifications, but also provides a clamping force to ensure the stability of the temperature and humidity instrument during the test.

[0017] Optionally, a rubber pad is fixedly connected to the clamping plate, and the cross-section of the rubber pad is trapezoidal.

[0018] By adopting the above technical solution, the rubber pad can avoid damage to the surface of the temperature and humidity instrument when disassembling and assembling it, and the rubber pad with a trapezoidal cross-section can not only improve the work efficiency during disassembly and assembly, but also improve the stability of clamping.

[0019] Optionally, a fixed pulley corresponding to the adjustment plate is connected to the side of the box door close to the working chamber, a pull rope is wound around the fixed pulley, a fixing ring is connected to the side of the adjustment plate close to the box door, one end of the pull rope is connected to a counterweight block, and the other end is connected to a hook, and the hook is connected to the fixing ring, a stabilizing rod is passed through the end of one of the adjustment plates away from the fixing ring, one end of the stabilizing rod is fixedly connected to the partition plate, and the other end is fixedly connected to the calibration box.

[0020] By adopting the above technical solution, when the adjustment frame moves upward, the pull rope also moves upward, and the counterweight moves downward under the action of gravity, so that the pull rope maintains tension, thereby improving the stability of the adjustment frame when it moves up and down. The stabilizing rod passing through the adjustment plate further improves the stability of the adjustment frame when it moves up and down, and the fixing ring and hook can ensure the normal opening of the box door.

[0021] Optionally, an observation window is provided on the box door, and a brush is connected to a side of the counterweight block close to the observation window.

[0022] By adopting the above technical solution, the observation window can facilitate the tester to observe the situation inside the box, and when the counterweight block moves up and down under the action of the adjustment frame, the brush can wipe the water mist on the observation window, thereby improving the clarity of the observation window.

[0023] Optionally, two ends of the counterweight block close to the box door are connected to limit blocks, and the box door is provided with limit grooves corresponding to the limit blocks one by one, and the limit blocks are slidably connected in the limit grooves.

[0024] By adopting the above technical solution, when the counterweight block slides up and down, it is easy to shake, and the sliding cooperation between the limit block and the limit groove improves the stability of the counterweight block when moving up and down, and also improves the wiping efficiency of the brush on the observation window.

[0025] Optionally, an operation port is provided on the box door, a glove is provided in the working chamber, the glove is connected to the operation port, an elastic snap-fit ​​sleeve is connected to a side of the box door close to the working chamber, and the cross-section of the elastic snap-fit ​​sleeve is C-shaped.

[0026] By adopting the above technical solution, when the temperature and humidity meter has a detection rod, the tester can adjust the position of the detection rod without opening the box door through gloves, thereby ensuring the sealing. And the hook and the fixing ring can be installed and removed through gloves, thereby improving convenience. When not in use, the operator can bend his arm, then clip the gloves to the elastic clip sleeve, and then pull them out to avoid the influence of the gloves on the operation, further improving convenience.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. At the beginning of the test, the tester places the temperature and humidity meter on the placement table, and then closes the box door. After calibrating a position, the tester starts the first drive member through the control platform, and the first drive member drives the transmission assembly and rotates the gear through the transmission shaft. Since the T-shaped block on the support plate is slidably connected to the sliding groove on the adjustment plate, the support plate and the placement table can move along the length direction of the adjustment plate, realizing the testing and calibration of the temperature and humidity meter at different positions, so there is no need to adjust the position of the temperature and humidity meter by opening and closing the box door, avoiding waiting too long due to the destruction of the test environment, and greatly improving the calibration efficiency; 2. When the tester starts the second drive member through the control platform, the second drive member causes the screw to rotate. Since the lifting block cooperates with the screw thread, and the guide block has a T-shaped cross-section, it not only plays a limiting role, but also a guiding role. The lifting block can move up and down with the rotating roller and the sprockets at both ends of the chain, because one end of the chain is respectively fixedly connected to the fixed plate and the fixed bar, and the other end is fixedly connected to the adjustment frame. Therefore, when the rotating roller moves upward, the rotating roller rotates under the action of the sprocket and the chain, and the adjustment frame is pulled upward, thereby further adjusting the position of the temperature and humidity instrument, making the calibration test positions more, which not only improves the accuracy of the calibration, but also improves the calibration efficiency. The connecting plates at both ends of the adjustment plate not only make the adjustment frame uniform when moving, but also improve the stability of the adjustment frame when moving; 3. When the rotating roller moves upward, the tester starts the water pump through the control platform, so that the water in the water tank enters the rotating roller and then sprays out through the atomizing nozzle, thereby adjusting the humidity of the test environment. In addition, since the rotating roller will rotate during the upward movement, the water mist will diffuse faster during the spraying process, meeting the test requirements and improving the calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the calibration box of this application.

[0029] Figure 2 It is a schematic diagram of the internal structure of the calibration box of this application.

[0030] Figure 3 It is a schematic diagram of the structure of the internal reaction adjustment frame of the calibration box of the present application.

[0031] Figure 4 It is a half-section schematic diagram of the adjustment frame of the present application.

[0032] Figure 5 It is a schematic diagram of the matching structure of the box door, counterweight block and adjustment frame.

[0033] Figure 6 yes Figure 3 A partial enlarged view of point A in the middle.

[0034] Description of reference numerals: 1. calibration box; 11. box door; 111. control platform; 112. pull rope; 113. hook; 114. counterweight; 1141. brush; 1142. limit block; 115. observation window; 116. limit groove; 117. operation port; 118. fixed pulley; 12. partition plate; 13. guide groove; 131. guide block; 14. lifting block; 141. screw; 15. rotating roller; 151. atomizing nozzle; 152. sprocket; 153. chain; 16. fixed plate; 17. fixed bar; 18. second driving member; 2. placing table; 21. guide port; 22. clamping plate; 221 , rubber pad; 23, guide rod; 24, reset member; 25, first drive member; 3, adjustment frame; 31, adjustment plate; 311, placement groove; 312, sliding groove; 313, fixing ring; 314, stabilizing rod; 32, connecting plate; 33, rack; 4, working chamber; 41, gloves; 42, elastic snap-fit ​​sleeve; 5, placement chamber; 51, water tank; 52, water pump; 53, water inlet pipe; 54, water outlet pipe; 55, hose; 6, support plate; 61, T-block; 62, avoidance groove; 63, transmission shaft; 64, gear; 7, transmission assembly; 71, large diameter synchronous wheel; 72, small diameter synchronous wheel; 73, synchronous belt. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6This application is described in further detail.

[0036] The embodiment of the present application discloses a temperature and humidity instrument calibration device.

[0037] Reference Figure 1 , Figure 3 and Figure 4 A temperature and humidity instrument calibration device includes a calibration box 1 and a box door 11 hinged on the calibration box 1. The box door 11 has a control platform 111 and a handle (not shown in the figure). The tester can change the calibration environment in the calibration box 1 by adjusting the test platform, and the handle is convenient for the tester to open and close the box door 11.

[0038] A partition plate 12 is fixedly connected in the calibration box 1, so that the partition plate 12 divides the calibration box 1 into a working chamber 4 and a placement chamber 5. An adjustment frame 3 is arranged in the working chamber 4, and a placement table 2 for placing a temperature and humidity instrument is provided in the adjustment frame 3. The adjustment frame 3 includes two adjustment plates 31, and a support plate 6 is connected between the adjustment plate 31 and the placement table 2. An avoidance groove 62 is provided on the side of the support plate 6 close to the adjustment plate 31, and a transmission shaft 63 is rotatably connected to the adjustment plate 31. The rotation shaft is connected to the support plate 6 through a ball bearing (not shown in the figure), and a gear 64 is rotatably connected in the avoidance groove 62. The transmission shaft 63 passes through the gear 64 and is fixedly connected to the gear 64.

[0039] A placement groove 311 and a sliding groove 312 are provided on one side of the adjustment plate 31 close to the support plate 6. A rack 33 meshing with the gear 64 is fixedly connected in the placement groove 311. A T-shaped block 61 is slidably connected in the sliding groove 312, and the T-shaped block 61 is fixedly connected to the support plate 6. The transmission shaft 63 passes through the avoidance groove 62 and extends downward. A transmission assembly 7 is fixedly sleeved on the transmission shaft 63, and the placement table 2 is hollow. A first driving member 25 driving the transmission assembly 7 is provided in the placement table 2. The first driving member 25 is electrically connected to the control platform 111, and the first driving member 25 is a servo motor.

[0040] Reference Figure 1 , Figure 3 and Figure 4, through the control platform 111, the tester can adjust the environment in the calibration box 1. When the temperature and humidity meter needs to be tested, the tester opens the box door 11 through the handle, and then places the temperature and humidity meter on the placement table 2, and then closes the box door 11. At this time, the tester starts the first driving member 25 through the control platform 111, and the first driving member 25 drives the transmission assembly 7, and then rotates the gear 64 through the transmission shaft 63. Under the action of the engagement between the gear 64 and the rack 33, the support plate 6 and the placement table 2 move horizontally along the length of the adjustment plate 31. The T-shaped block 61 on the support plate 6 can make the support plate 6 more stable when moving, and realizes the movement of the position of the temperature and humidity meter, so that there is no need to adjust the position of the temperature and humidity meter by opening and closing the box door 11, avoiding waiting too long due to the destruction of the test environment, and greatly improving the calibration efficiency.

[0041] Reference Figure 2 , Figure 3 and Figure 6 The adjustment frame 3 also includes two connecting plates 32, which are respectively arranged at the front and rear ends of the adjustment plate 31 and fixed to the adjustment plate 31 by screws. A guide groove 13 is provided on the box body, and a guide block 131 is slidably connected in the guide groove 13. A lifting block 14 is provided in the working chamber 4, and the guide block 131 is fixedly connected to the lifting block 14. A rotating roller 15 is rotatably connected to the lifting block 14 on the side away from the guide block 131. Both ends of the rotating roller 15 are fixedly sleeved with sprockets 152, and a chain 153 engaged with the sprocket 152 is wound around the sprocket 152. A fixed plate 16 and a fixed bar 17 are fixedly connected to the opposite sides of the inner side wall of the working chamber 4 of the calibration box 1. One end of the chain 153 is fixedly connected to the adjustment plate 31, and the other end is fixedly connected to the fixed plate 16 and the fixed bar 17 respectively.

[0042] The fixing plate 16 is rotatably connected with a screw rod 141, and the screw rod 141 passes through the top of the calibration box 1, and the screw rod 141 is threadedly matched with the lifting block 14. A second driving member 18 for driving the screw rod 141 to rotate is fixedly connected to the top of the calibration box 1, and the second driving member 18 is also electrically connected to the control platform 111. The second driving member 18 is a motor, and the guide block 131 has a T-shaped cross section, so that when the motor drives the screw rod 141 to rotate, it not only plays a guiding role, but also limits the rotation of the lifting block 14.

[0043] Reference Figure 2 , Figure 3 and Figure 6When the tester drives the second driving member 18 through the control platform 111, the second driving member 18 drives the screw 141 to rotate, so that the lifting block 14 can move up and down along the length direction of the screw 141. When the lifting block 14 moves up and down, the rotating roller 15 and the sprocket 152 also move up and down. At this time, the chain 153 pulls the adjustment frame 3 upward, and due to the meshing characteristics of the sprocket 152 and the chain 153, the sprocket 152 will also rotate while moving upward, thereby ensuring that the adjustment frame 3 can move upward smoothly. Thereby further adjusting the calibration position of the temperature and humidity instrument, improving the accuracy of the calibration, and also improving the calibration efficiency.

[0044] Reference Figure 2 and Figure 3 , a water tank 51 and a water pump 52 are installed in the placement chamber 5, and the water pump 52 is electrically connected to the control platform 111. A water inlet pipe 53 is fixedly connected to the water tank 51, and the water pump 52 is connected to the water tank 51 through the water inlet pipe 53. The other end of the water pump 52 is fixedly connected to a water outlet pipe 54, and the water outlet pipe 54 passes through the partition plate 12. The rotating roller 15 is hollow, and the end of the rotating roller 15 away from the lifting block 14 is open, and a ball bearing is fixedly connected to the opening (not shown in the figure), and a hose 55 is connected between the rotating roller 15 and the water outlet pipe 54, one end of the hose 55 is fixedly connected to the ball bearing, and the other end is fixedly sleeved on the water outlet pipe 54. A plurality of atomizing nozzles 151 are fixedly connected to the rotating roller 15, and the atomizing nozzles 151 are distributed along its circumference. The partition plate 12 has an inclined surface at one side close to the working chamber 4 and a lower surface at the side away from the door 11 . A return pipe (not shown) passes through the partition plate 12 , and the other end of the return pipe is fixedly connected to the water tank 51 .

[0045] Reference Figure 2 and Figure 3 , when the tester needs to adjust the position of the temperature and humidity instrument and change the test environment. The second driving member 18 is started through the control platform 111, and then, under the action of the lifting block 14, the rotating roller 15 rotates. At this time, the water pump 52 is started through the control platform 111, so that the water in the water tank 51 enters the rotating roller 15 through the water inlet pipe 53, the water outlet pipe 54 and the hose 55, and then is sprayed into the working chamber 4 through the atomizing nozzle 151. While the rotating roller 15 is rotating, the water mist can fill the working chamber 4 more quickly. Thereby improving efficiency. When the test is completed, the water mist falls on the partition plate 12, and then flows into the water tank 51 through the reflux pipe, thereby saving resources.

[0046] Reference Figure 2 and Figure 4The transmission assembly 7 includes two small-diameter synchronous wheels 72, a large-diameter synchronous wheel 71 and a synchronous belt 73. The small-diameter synchronous wheel 72 is fixedly sleeved on the transmission shaft 63. The large-diameter synchronous wheel 71 is detachably connected to the first driving member 25 in the placement table 2 through a key (not shown in the figure). The large-diameter synchronous wheel 71 is located between the two small-diameter synchronous wheels 72, and the synchronous belt 73 is engaged with the synchronous wheels.

[0047] Reference Figure 2 and Figure 4 When the operator starts the first driving member 25, the large-diameter synchronous wheel 71 rotates, and then under the action of the synchronous belt 73, the small-diameter synchronous wheel 72 rotates. At this time, the transmission shaft 63 also rotates, and then drives the gear 64 in the avoidance groove 62 to rotate. Since the gear 64 is engaged with the rack 33, the support plate 6 and the placement table 2 are moved along the length direction of the adjustment plate 31.

[0048] Reference Figure 3 and Figure 4 A plurality of guide openings 21 are provided on the top surface of the placing table 2, and two guide rods 23 are staggered in the placing table 2 along its height direction. A clamping plate 22 is slidably connected in the guide opening 21, and the clamping plate 22 corresponds to the guide opening 21 one by one. The clamping plate 22 extends into the placing table 2 and slidably cooperates with the guide rod 23. A reset member 24 is provided between the clamping plate 22 and the inner side wall of the placing table 2. The reset member 24 is a spring, and the spring is sleeved on the guide rod 23. A rubber pad 221 is fixedly connected to one end of the clamping plate 22 away from the guide rod 23, and the cross section of the rubber pad 221 is trapezoidal.

[0049] Reference Figure 3 and Figure 4 When the tester tests the temperature and humidity meter, the temperature and humidity meter needs to be installed on the placement table 2, and the clamping plate 22 on the placement table 2 clamps the temperature and humidity meter under the action of the reset member 24. The guide port 21 can make the placement table 2 adapt to temperature and humidity meters of different models and specifications. The rubber pad 221 can avoid leaving scratches on the surface of the temperature and humidity meter during installation, and the rubber pad 221 with a trapezoidal cross section can not only improve the work efficiency during disassembly and assembly, but also improve the stability of clamping.

[0050] Reference Figure 2 and Figure 5A fixed pulley 118 is connected to the side of the box door 11 close to the working chamber 4, and the fixed pulley 118 corresponds to the adjustment plate 31 one by one. A pull rope 112 is wound around the fixed pulley 118, and a fixing ring 313 is fixedly connected to the adjustment plate 31. The fixing ring 313 is located on the side of the adjustment plate 31 close to the box door 11. One end of the pull rope 112 is fixedly connected to a counterweight 114, and the other end is fixedly connected to a hook 113, and the hook 113 is connected to the fixing ring 313. A stabilizing rod 314 is penetrated at one end of one of the adjustment plates 31 away from the fixing ring 313. The stabilizing rod 314 is located between the inner top wall of the calibration box 1 and the partition plate 12, and is fixedly connected to both.

[0051] Reference Figure 2 and Figure 5 When the adjustment frame 3 moves upward, the pull rope 112 also moves upward, and the counterweight 114 moves downward under the action of gravity, so that the pull rope 112 maintains tension. The stabilizing rod 314 provided on the adjustment plate 31 further improves the stability of the adjustment frame 3 when it moves up and down, and the fixing ring 313 and the hook 113 can ensure the normal opening of the box door 11.

[0052] Reference Figure 5 The box door 11 is provided with an observation window 115, and a brush 1141 is fixedly connected to the side of the counterweight 114 near the observation window 115. The two ends of the counterweight 114 near the box door 11 are fixedly connected with limit blocks 1142, and the box door 11 is provided with limit grooves 116 corresponding to the limit blocks 1142. The counterweight 114 moves up and down through the sliding cooperation between the limit blocks 1142 and the limit grooves 116.

[0053] Reference Figure 5 The observation window 115 can facilitate the tester to observe the situation inside the box, and when the counterweight 114 moves up and down under the action of the adjustment frame 3, the brush 1141 can wipe the water mist on the observation window 115. The sliding cooperation between the limit block 1142 and the limit groove 116 can make the counterweight 114 more stable when moving up and down.

[0054] Reference Figure 1 and Figure 5 An operation port 117 is provided on the box door 11, a glove 41 is connected to the working chamber 4, the glove 41 is fixedly connected to the operation port 117, an elastic snap-fit ​​sleeve 42 is fixedly connected to the box door 11, the elastic snap-fit ​​sleeve 42 is located in the working chamber 4, and the cross-section is C-shaped.

[0055] Reference Figure 1 and Figure 5Since there are many types of temperature and humidity instruments, when it is necessary to calibrate a temperature and humidity instrument with a detection rod, the tester can adjust the position of the detection rod without opening the box door 11 through the glove 41, thereby ensuring the sealing. And the hook 113 and the fixing ring 313 can be assembled and disassembled through the glove 41. After the calibration is completed, the operator can bend his arm, then clip the glove 41 on the elastic clip sleeve 42, and then pull it out, avoiding the influence of the glove 41 on the operation, which improves the convenience of calibration.

[0056] The implementation principle of a temperature and humidity instrument calibration device in the embodiment of the present application is: When the tester calibrates the temperature and humidity meter, he first opens the box door 11 through the handle, and then places the temperature and humidity meter to be calibrated on the placement table 2. At this time, the clamping plate 22 clamps it under the action of the reset member 24, and then closes the box door 11, and connects the hook 113 to the fixing ring 313 through the gloves 41.

[0057] The temperature in the box is changed by controlling the platform 111, and the first driving member 25 is started by the control platform 111, so that the placement table 2 moves horizontally in the length direction of the adjustment plate 31 under the action of the support plate 6. Then wait for the test results; the tester starts the second driving member 18 to move the adjustment frame 3 up and down; when the humidity needs to be adjusted, the tester can start the water pump 52 through the control platform 111, and then the water in the water tank 51 is sprayed into the working chamber 4 through the atomizing nozzle 151 on the rotating roller 15. The rotating roller 15 can adjust the humidity when the adjustment frame 3 moves up and down, thereby improving the calibration efficiency.

[0058] When the tester starts the second driving member 18 through the control platform 111, the adjustment frame 3 can move up and down, thereby increasing the position for calibrating the temperature and humidity instrument. During the calibration process, the box door 11 does not need to be opened for calibration, which greatly improves the efficiency of the calibration.

[0059] The clamping plate 22 and the reset member 24 on the placement table 2 can adapt to temperature and humidity instruments of different types and specifications, greatly improving the adaptability of the placement table 2 to the temperature and humidity instruments.

[0060] When the calibration is completed, the tester reaches into the working chamber 4 through the gloves 41, releases the connection between the hook 113 and the fixing ring 313, and then opens the box door 11 to take out the temperature and humidity meter, thereby completing the calibration of the temperature and humidity meter.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature and humidity instrument calibration device, comprising a calibration box (1) and a box door (11) hinged on the calibration box (1), wherein a partition plate (12) is fixedly connected inside the calibration box (1), and the partition plate (12) divides the calibration box (1) into a placement chamber (5) and a working chamber (4), characterized in that: A placing table (2) and an adjusting frame (3) are arranged in the working chamber (4); the placing table (2) is located in the adjusting frame (3); the adjusting frame (3) includes two adjusting plates (31); a supporting plate (6) is connected to the placing table (2); and the supporting plate (6) is located between the placing table (2) and the adjusting plate (31); a placing groove (311) and a sliding groove (312) are provided on a side of the adjusting plate (31) close to the supporting plate (6); a T-shaped block (61) that is slidably matched with the sliding groove (312) is fixedly connected to a side of the supporting plate (6) close to the adjusting plate (31); an avoiding groove (62) is provided on the supporting plate (6); and a transmission shaft (63) is rotatably connected to the supporting plate (6). The transmission shaft (63) passes through the avoidance groove (62) and extends out of the support plate (6); a rack (33) is fixedly connected in the placement groove (311); a gear (64) meshing with the rack (33) is arranged in the avoidance groove (62); the gear (64) is fixedly connected to the transmission shaft (63); a transmission assembly (7) is sleeved on the transmission shaft (63); the transmission assembly (7) is located between the placement table (2) and the partition plate (12); the placement table (2) is hollow, and a first driving member (25) for driving the transmission assembly (7) is provided in the placement table (2); a control platform (111) is provided on the box door (11); and the first driving member (25) is electrically connected to the control platform (111).

2. A temperature and humidity instrument calibration device according to claim 1, characterized in that: The adjustment frame (3) further comprises two connecting plates (32), wherein the connecting plates (32) are detachably connected to the two ends of the adjustment plate (31); a guide groove (13) is provided on the inner side wall of the calibration box (1); a guide block (131) is slidably connected in the guide groove (13); the guide block (131) has a T-shaped cross section; a lifting block (14) is fixedly connected to a side of the guide block (131) close to the working chamber (4); a rotating roller (15) is rotatably connected to a side of the lifting block (14) away from the guide block (131); sprockets (152) are sleeved on both ends of the rotating roller (15); a fixing bar (152) is fixedly connected to the inner side wall of the working chamber (4) of the calibration box (1); (17) and a fixed plate (16), the fixed plate (16) being located on a side close to the lifting block (14), the sprocket (152) being wound with a chain (153) meshing with the sprocket (152), one end of the chain (153) being connected to the adjustment plate (31), and the other end being connected to the fixed bar (17) and the fixed plate (16), respectively, the fixed plate (16) being rotatably connected with a screw rod (141), the screw rod (141) passing through the calibration box (1), the calibration box (1) being provided with a second driving member (18) for driving the screw rod (141) to rotate, the second driving member (18) being electrically connected to the control platform (111), and the lifting block (14) being threadedly matched with the screw rod (141).

3. A temperature and humidity instrument calibration device according to claim 2, characterized in that: A water tank (51) and a water pump (52) are placed in the placement chamber (5); a water inlet pipe (53) is connected between the water pump (52) and the water tank (51); one end of the water pump (52) away from the water inlet pipe (53) is connected to a water outlet pipe (54); the water outlet pipe (54) passes through the partition plate (12); the rotating roller (15) is hollow and a plurality of atomizing nozzles (151) are provided on the rotating roller (15); one end of the rotating roller (15) away from the lifting block (14) is connected to a hose (55); one end of the hose (55) is sleeved on the rotating roller (15) and the other end is sleeved on the water outlet pipe (54); the water pump (52) is electrically connected to the control platform (111).

4. A temperature and humidity instrument calibration device according to claim 1, characterized in that: The transmission assembly (7) comprises a small-diameter synchronous wheel (72), a large-diameter synchronous wheel (71) and a synchronous belt (73); the small-diameter synchronous wheel (72) is fixedly sleeved on the transmission shaft (63) and corresponds to the transmission shaft (63) one by one; the large-diameter synchronous wheel (71) is rotatably connected to a side of the placement table (2) close to the partition plate (12); the large-diameter synchronous wheel (71) is located between the two small-diameter synchronous wheels (72); the synchronous belt (73) is meshed with the synchronous wheels; and the large-diameter synchronous wheel (71) is fixedly sleeved on the output shaft of the first driving member (25).

5. A temperature and humidity instrument calibration device according to claim 1, characterized in that: A plurality of guide openings (21) are provided on the top surface of the placing platform (2), and a clamping plate (22) corresponding to the guide openings (21) is slidably connected therein. Two guide rods (23) are staggeredly provided in the placing platform (2) up and down. The clamping plate (22) extends into the placing platform (2) and is slidably connected to the guide rods (23). A reset member (24) is sleeved on the guide rods (23), and the reset member (24) is located between the inner side wall of the placing platform (2) and the clamping plate (22).

6. A temperature and humidity instrument calibration device according to claim 5, characterized in that: A rubber pad (221) is fixedly connected to the clamping plate (22), and the cross section of the rubber pad (221) is trapezoidal.

7. A temperature and humidity instrument calibration device according to claim 1, characterized in that: A fixed pulley (118) corresponding to the adjustment plate (31) is connected to the side of the box door (11) close to the working chamber (4), a pull rope (112) is wound around the fixed pulley (118), a fixing ring (313) is connected to the side of the adjustment plate (31) close to the box door (11), one end of the pull rope (112) is connected to a counterweight (114), and the other end is connected to a hook (113), and the hook (113) is connected to the fixing ring (313), and a stabilizing rod (314) is passed through one end of one of the adjustment plates (31) and away from the fixing ring (313), one end of the stabilizing rod (314) is fixedly connected to the partition plate (12), and the other end is fixedly connected to the calibration box (1).

8. A temperature and humidity instrument calibration device according to claim 7, characterized in that: The box door (11) is provided with an observation window (115), and a brush (1141) is connected to a side of the counterweight block (114) close to the observation window (115).

9. A temperature and humidity instrument calibration device according to claim 7, characterized in that: The two ends of the counterweight block (114) close to the box door (11) are connected to limit blocks (1142); the box door (11) is provided with limit grooves (116) corresponding to the limit blocks (1142) one by one; and the limit blocks (1142) are slidably connected in the limit grooves (116).

10. A temperature and humidity instrument calibration device according to claim 1, characterized in that: An operating port (117) is provided on the box door (11), a glove (41) is provided in the working chamber (4), the glove (41) is connected to the operating port (117), and an elastic snap-fit ​​sleeve (42) is connected to a side of the box door (11) close to the working chamber (4), the cross section of the elastic snap-fit ​​sleeve (42) being C-shaped.

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