Temperature control device for laboratory and temperature control method thereof

Abstract

The invention discloses a temperature control device for a laboratory and a temperature control method thereof, and belongs to the technical field of temperature control devices.The temperature control device comprises a base, an experiment box is arranged at the upper end of the base, a connecting plate is arranged at the lower end of the side edge of the experiment box, a door plate is arranged on the other side of the experiment box, and the door plate and the experiment box are rotationally connected through a rotating shaft; a door plate is arranged on one side of the experiment box, a handle is arranged on the other side of the door plate, four sets of temperature sensors are arranged on the inner wall of the experiment box, and a PLC is arranged at the edge of the side edge of the experiment box. The temperature in the experiment box is monitored through four groups of temperature sensors immediately, and when the temperature in the experiment box exceeds a specified threshold value, the PLC controls the electromagnetic valve to be opened, so that hot air can enter the experiment box along the transmission pipe and the shunt pipe, and the temperature control of the experiment box is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of temperature control devices, and in particular relates to a temperature control device for a laboratory and a temperature control method thereof. Background Art

[0002] When conducting experiments in the laboratory, it is necessary to ensure that the temperature in the experimental box is at a suitable experimental temperature to ensure the normal operation of the experiment.

[0003] The existing laboratory temperature control device has the following disadvantages: 1. The existing laboratory temperature control device cannot effectively regulate the temperature in the test box, and the regulation effect is relatively poor. The temperature in the test box is often uneven, thus affecting the test effect of the test box;

[0004] 2. Although the existing experimental box can be used for testing, the experimental samples cannot be effectively fixed during the experiment and it is not convenient to rotate the experimental samples;

[0005] 3. The existing experimental box is not convenient to carry, and after the experimental box is moved to a suitable location, the stability of the experimental box cannot be guaranteed. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the present invention provides a temperature control device for a laboratory, which has the characteristics of conveniently controlling the temperature of the laboratory, conveniently positioning and fixing the experimental samples, and conveniently moving the experimental box.

[0007] The invention also provides a temperature control method for the temperature control device for a laboratory.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a temperature control device for laboratory, comprising a base, an experimental box is arranged at the upper end of the base, a connecting plate is arranged at the lower end of the side of the experimental box, a door panel is arranged on the other side of the experimental box, the door panel and the experimental box are rotatably connected by a rotating shaft, a handle is arranged on the other side of the door panel, four groups of temperature sensors are arranged on the inner wall of the experimental box, a PLC controller is arranged at the side edge of the experimental box, a moving mechanism is arranged at the lower end of the base, a temperature control mechanism is arranged at the upper end of the connecting plate, and an experimental sample positioning mechanism is arranged at the lower end of the interior of the experimental box.

[0009] Furthermore, the installation groove, large gear, rotating shaft, motor 1, small gear, support plate and experimental sample fixing assembly, the lower end of the interior of the experimental box is provided with an installation groove, the interior of the installation groove is provided with motor 1, the output end of motor 1 is provided with a small gear, the side of the small gear is meshingly connected with the large gear, the interior of the large gear is fixedly provided with a rotating shaft, the upper end of the rotating shaft is provided with a support plate, and the interior of the support plate is provided with an experimental sample fixing assembly.

[0010] Furthermore, the experimental sample positioning mechanism also includes an annular slide rail and a slide rod. The slide rod is arranged on the side of the lower end of the support plate, and an annular slide rail corresponding to the slide rod is opened at the lower end of the interior of the experimental box.

[0011] Furthermore, the experimental sample fixing assembly includes a bidirectional screw, a nut block, a second motor, a positioning plate, a T-slot, a T-block and a rubber pad. The second motor is arranged on the side of the support plate, and the output end of the second motor is arranged with a bidirectional screw. Two groups of nut blocks are symmetrically arranged on the surface of the bidirectional screw. A positioning plate is arranged at the upper end of the nut block, a rubber pad is arranged on the side of the positioning plate, a T-block is arranged on the side of the lower end of the positioning plate, and a T-slot corresponding to the T-block is opened at the upper end of the support plate.

[0012] Furthermore, the temperature control mechanism includes a transmission tube, a shunt tube, a solenoid valve, a heating wire, a heating box, a holder, a slot, a dustproof plate, a fixing component, a fan, a slot hole, a block, a mounting box, bolts, an ear plate and a connecting tube. A mounting box is provided at the upper end of the connecting plate, a dustproof plate is provided on the side of the mounting box, blocks are provided on both sides of the dustproof plate, a hole is provided on the side of the block, a fan is provided on the other side of the dustproof plate, a holder is provided on the side of the mounting box, a slot is provided on the side of the holder, a fixing component is provided inside the side of the slot, a connecting tube is provided at the upper end of the mounting box, a heating box is provided at the upper end of the connecting tube, an ear plate is provided on the side of the heating box, the ear plate and the experimental box are fixedly connected by bolts, a heating wire is provided inside the heating box, a transmission tube is provided at the upper end of the heating box, a solenoid valve is provided on the side of the transmission tube, a shunt tube is provided at the upper end of the transmission tube and extends into the interior of the experimental box.

[0013] Furthermore, the fixing assembly includes a spring 1, an adjustment slot, an adjustment block and a pin. A spring 1 is arranged inside the side of the slot, a pin is arranged at the other end of the spring 1, an adjustment block is arranged on the side of the pin, and an adjustment slot corresponding to the adjustment block is opened on the side of the base.

[0014] Furthermore, the moving mechanism includes a supporting seat, a lifting plate, a threaded rod, bevel gear 2, bevel gear 1, a rotating rod, an adjusting assembly and a universal wheel. A universal wheel is arranged at the lower end corner of the base, a threaded rod is rotatably connected to the inner center position of the base, bevel gear 2 is arranged on the upper end surface of the threaded rod, bevel gear 1 is meshingly connected to the side of bevel gear 2, a rotating rod is arranged on the side of bevel gear 1, an adjusting assembly is arranged at the other end of the rotating rod, a lifting plate is threadedly connected to the lower end surface of the threaded rod, and a supporting seat is arranged at the lower end side edge of the lifting plate.

[0015] Furthermore, the moving mechanism also includes a slider and a slide groove. The side of the lifting plate is provided with a slider, and the inner wall of the base is provided with a slide groove corresponding to the slider.

[0016] Furthermore, the adjustment assembly includes a fixed rod, a limit plate, spring 2, a pull rod, a handle, a turntable, a fixed hole, a rotating groove and a rotating block. A turntable is provided at the other end of the rotating rod, a pull rod is provided through the side of the turntable, a pull handle is provided at one end of the pull rod, a limit plate is provided at the other end of the pull rod, and a fixed rod is provided at the other end of the limit plate. The surface of the pull rod is located on the side of the limit plate and is sleeved with spring 2. Multiple groups of fixing holes corresponding to the fixed rod are provided on the side of the base, a rotating block is provided on the surface of the rotating rod inside the base, and a rotating groove corresponding to the rotating block is provided inside the base.

[0017] Furthermore, a temperature control method for a laboratory temperature control device comprises the following steps:

[0018] S1: After placing the laboratory sample on the upper end of the support plate, turn on motor 2, which drives the bidirectional screw to rotate through the output end. The rotation of the bidirectional screw drives the two sets of nut blocks to approach each other. The two sets of nut blocks approach each other and drive the two sets of positioning plates to approach each other, so as to position and fix the laboratory sample. When the positioning plate slides, it drives the T-block to slide inside the T-slot, thereby improving the stability of the positioning plate sliding process. Then, turn on motor 1 in the installation slot, and drive the small gear to rotate through the output end of motor 1. The small gear rotation drives the large gear rotation. The large gear rotation drives the rotating shaft rotation. The rotating shaft rotation drives the support plate rotation, thereby driving the laboratory sample to rotate. When the support plate rotates, it drives the slide bar to rotate inside the annular slide rail, thereby improving the stability of the support plate rotation process.

[0019] S2: When installing the dustproof plate, first slide the adjustment block in the adjustment slot, the adjustment block drives the bayonet compression spring to be embedded in the inside of the card seat, then insert the card block on the side of the dustproof plate into the inside of the card slot, and then loosen the adjustment block. Once the spring rebounds, it drives the bayonet to be inserted into the inside of the card hole to achieve the installation of the dustproof plate and the fan. Turn on the fan, the fan sends cold air into the installation box, and then into the inside of the heating box along the connecting pipe. The cold air is heated by the heating wire, and then the heating box is fixed to the side of the experimental box by bolts and ear plates. The temperature in the experimental box is monitored by the temperature sensor. When the temperature in the experimental box is lower than the required experimental temperature, the temperature sensor converts the temperature signal into an electrical signal and transmits it to the PLC controller. The PLC controller controls the solenoid valve to open, so that hot air is sent into the inside of the experimental box through the transmission pipe and the shunt pipe, thereby achieving temperature control of the experimental box.

[0020] S3: Before rotating the rotating rod, first pull the handle, the handle pulls the pull rod, the limit plate and the fixed rod, and drives the second spring to compress. At this time, turn the turntable, the rotation of the turntable drives the rotating rod to rotate, and the rotation of the rotating rod drives the rotating block to rotate inside the rotating groove, thereby avoiding the problem of misalignment of the rotating rod. The rotation of the rotating rod drives the bevel gear one to rotate, the rotation of the bevel gear one drives the bevel gear two to rotate, the rotation of the bevel gear two drives the threaded rod to rotate, the rotation of the threaded rod drives the lifting plate to descend, and the descent of the lifting plate drives the support seat to descend to contact the ground, thereby ensuring the stability of the device during use. When the lifting plate is lifted or lowered, it will drive the slider to slide inside the slide groove, thereby improving the stability of the lifting process of the lifting plate. At this time, by loosening the handle, the second spring rebounds, thereby driving the fixed rod to insert into another set of fixed holes to achieve the limitation of the rotating rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with an experimental sample positioning mechanism, which can facilitate the positioning and fixing of the experimental sample, so as to conduct subsequent experiments on the experimental sample. At the same time, the mechanism can drive the support plate to rotate, so as to facilitate experiments on other positions of the experimental supplies.

[0023] 2. The present invention is provided with a temperature control mechanism, which can send cold air into the heating box through a fan, heat the cold air through a heating wire, and then monitor the temperature in the experimental box through four groups of temperature sensors. When the temperature in the experimental box exceeds a specified threshold, the PLC controller controls the solenoid valve to open, so that the hot air can enter the interior of the experimental box along the transmission pipe and the shunt pipe, so as to realize temperature control of the experimental box.

[0024] 3. The present invention is provided with a moving mechanism, which can enable the device to move to a specified position through the universal wheel, and then drive the rotating rod to rotate through the adjustment component, and drive the support base to descend to contact the ground through a series of transmission structures, thereby ensuring the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 A three-dimensional cutaway diagram of the experimental sample positioning mechanism of the present invention;

[0027] Figure 3 A three-dimensional diagram of an experimental sample fixing assembly of the present invention;

[0028] Figure 4 It is a three-dimensional diagram of the temperature control mechanism of the present invention;

[0029] Figure 5is a three-dimensional diagram of the fixing assembly of the present invention;

[0030] Figure 6 is a three-dimensional diagram of the mobile mechanism of the present invention;

[0031] Figure 7 is an enlarged view of the adjustment component of the present invention;

[0032] In the figure: 1. base; 2. experimental sample positioning mechanism; 21. mounting slot; 22. large gear; 23. rotating shaft; 24. motor 1; 25. small gear; 26. annular slide rail; 27. slide bar; 28. support plate; 29. ​​experimental sample fixing assembly; 291. bidirectional screw rod; 292. nut block; 293. motor 2; 294. positioning plate; 295. T-slot; 296. T-block; 297. rubber pad; 3. handle; 4. door panel; 5. rotating shaft; 6. temperature control mechanism; 61. transmission pipe; 62. shunt pipe; 63. solenoid valve; 64. heating wire; 65. heating box; 66. card seat; 67. card slot; 68. dustproof plate; 69. fixing assembly; 6901. spring 1; 6902. adjustment slot; 6903, adjustment block; 6904, latch; 610, fan; 611, latch hole; 612, clamp block; 613, installation box; 614, bolt; 615, ear plate; 616, connecting pipe; 7, connecting plate; 8, experimental box; 9, moving mechanism; 91, support seat; 92, lifting plate; 93, threaded rod; 94, slider; 95, slide groove; 96, bevel gear two; 97, bevel gear one; 98, rotating rod; 99, adjustment assembly; 991, fixing rod; 992, limit plate; 993, spring two; 994, pull rod; 995, pull handle; 996, turntable; 997, fixing hole; 998, rotating groove; 999, rotating block; 910, universal wheel; 10, PLC controller; 11, temperature sensor. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1-7The present invention provides the following technical solutions: a temperature control device for laboratory, comprising a base 1, an experimental box 8 is arranged at the upper end of the base 1, a connecting plate 7 is arranged at the lower end of the side of the experimental box 8, a door panel 4 is arranged on the other side of the experimental box 8, the door panel 4 and the experimental box 8 are rotatably connected through a rotating shaft 5, a handle 3 is arranged on the other side of the door panel 4, four groups of temperature sensors 11 are arranged on the inner wall of the experimental box 8, a PLC controller 10 is arranged at the side edge of the experimental box 8, a moving mechanism 9 is arranged at the lower end of the base 1, a temperature control mechanism 6 is arranged at the upper end of the connecting plate 7, and an experimental sample positioning mechanism 2 is arranged at the lower end of the interior of the experimental box 8.

[0036] The present invention further comprises a mounting groove 21, a large gear 22, a rotating shaft 23, a motor 24, a pinion 25, a support plate 28 and an experimental sample fixing assembly 29. The lower end of the interior of the experimental box 8 is provided with a mounting groove 21, a motor 24 is arranged inside the mounting groove 21, a pinion 25 is arranged at the output end of the motor 24, a large gear 22 is arranged on the side of the pinion 25 in meshing connection, a rotating shaft 23 is fixedly arranged inside the large gear 22, a support plate 28 is arranged at the upper end of the rotating shaft 23, and an experimental sample fixing assembly 29 is arranged inside the support plate 28.

[0037] By adopting the above technical solution, the laboratory sample is placed on the upper end of the support plate 28, and then the motor 24 in the mounting slot 21 is opened. The motor 24 drives the small gear 25 to rotate through the output end, and the small gear 25 drives the large gear 22 to rotate. The large gear 22 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the support plate 28 to rotate, thereby driving the laboratory sample to rotate.

[0038] In the present invention, the experimental sample positioning mechanism 2 further includes an annular slide rail 26 and a slide rod 27. The slide rod 27 is disposed on the lower side of the support plate 28. The inner lower end of the experimental box 8 is provided with an annular slide rail 26 corresponding to the slide rod 27.

[0039] By adopting the above technical solution, when the support plate 28 rotates, it will drive the slide rod 27 to rotate inside the annular slide rail 26, thereby improving the stability of the support plate 28 during the rotation process.

[0040] The present invention further includes a test sample fixing assembly 29 comprising a bidirectional screw 291, a nut block 292, a second motor 293, a positioning plate 294, a T-slot 295, a T-block 296 and a rubber pad 297. The second motor 293 is arranged on the side of the support plate 28, the output end of the second motor 293 is arranged with a bidirectional screw 291, two groups of nut blocks 292 are symmetrically arranged on the surface of the bidirectional screw 291, the upper end of the nut block 292 is arranged with a positioning plate 294, the side of the positioning plate 294 is arranged with a rubber pad 297, the lower end side of the positioning plate 294 is arranged with a T-block 296, and the upper end of the support plate 28 is provided with a T-slot 295 corresponding to the T-block 296.

[0041] By adopting the above technical solution, after the laboratory sample is placed on the upper end of the support plate 28, the motor 293 is turned on. The motor 293 drives the bidirectional screw 291 to rotate through the output end. The rotation of the bidirectional screw 291 drives the two groups of nut blocks 292 to approach each other. The two groups of nut blocks 292 approach each other and drive the two groups of positioning plates 294 to approach each other, thereby positioning and fixing the laboratory sample. When the positioning plate 294 slides, it drives the T-block 296 to slide inside the T-slot 295, thereby improving the stability of the sliding process of the positioning plate 294.

[0042] When the present embodiment is in use, after placing the laboratory sample on the upper end of the support plate 28, the motor 293 is turned on, and the motor 293 drives the bidirectional screw 291 to rotate through the output end. The rotation of the bidirectional screw 291 drives the two groups of nut blocks 292 to approach each other, and the two groups of nut blocks 292 approach each other and drive the two groups of positioning plates 294 to approach each other, thereby positioning and fixing the laboratory sample. When the positioning plate 294 slides, it drives the T-block 296 to slide inside the T-slot 295, thereby improving the stability of the sliding process of the positioning plate 294, and then by turning on the motor 1 24 in the mounting slot 21, the motor 1 24 drives the small gear 25 to rotate through the output end, and the small gear 25 rotates to drive the large gear 22 to rotate, and the large gear 22 rotates to drive the rotating shaft 23 to rotate, and the rotating shaft 23 rotates to drive the support plate 28 to rotate, thereby driving the laboratory sample to rotate, and when the support plate 28 rotates, it drives the sliding rod 27 to rotate inside the annular slide rail 26, thereby improving the stability of the support plate 28 during rotation.

[0043] Example 2

[0044] The difference between this embodiment and the first embodiment is that the temperature control mechanism 6 includes a transmission pipe 61, a shunt pipe 62, a solenoid valve 63, a heating wire 64, a heating box 65, a holder 66, a slot 67, a dustproof plate 68, a fixing assembly 69, a fan 610, a clamping hole 611, a clamping block 612, a mounting box 613, a bolt 614, an ear plate 615 and a connecting pipe 616. The upper end of the connecting plate 7 is provided with a mounting box 613, a dustproof plate 68 is provided on the side of the mounting box 613, a clamping block 612 is provided on both sides of the dustproof plate 68, a clamping hole 611 is provided on the side of the clamping block 612, and a fan 610 is provided on the other side of the dustproof plate 68. A holder 66 is provided on the side of the installation box 613, a slot 67 is provided on the side of the holder 66, a fixing assembly 69 is provided inside the side of the slot 67, a connecting pipe 616 is provided on the upper end of the installation box 613, a heating box 65 is provided on the upper end of the connecting pipe 616, a lug plate 615 is provided on the side of the heating box 65, the lug plate 615 and the experimental box 8 are fixedly connected by bolts 614, a heating wire 64 is provided inside the heating box 65, a transmission pipe 61 is provided on the upper end of the heating box 65, a solenoid valve 63 is provided on the side of the transmission pipe 61, a shunt pipe 62 is provided on the upper end of the transmission pipe 61 and extends into the interior of the experimental box 8,

[0045] By adopting the above technical solution, after the dustproof plate 68 and the fan 610 are installed, turn on the fan 610, and the fan 610 sends cold air into the installation box 613, and then sends it into the interior of the heating box 65 along the connecting pipe 616, and heats the cold air through the heating wire 64, and then fix the heating box 65 to the side of the experimental box 8 through the bolts 614 and the ear plate 615, and then monitor the temperature in the experimental box 8 through the temperature sensor 11. When the temperature in the experimental box 8 is lower than the required experimental temperature, the temperature sensor 11 converts the temperature signal into an electrical signal and transmits it to the PLC controller 10. The PLC controller 10 controls the solenoid valve 63 to open, so that the hot air is sent into the interior of the experimental box 8 through the transmission pipe 61 and the shunt pipe 62, thereby realizing the temperature control of the experimental box 8.

[0046] The present invention further comprises a fixing assembly 69 including a spring 1 6901, an adjustment slot 6902, an adjustment block 6903 and a bayonet 6904. A spring 1 6901 is disposed inside the side of the bayonet 67, a bayonet 6904 is disposed at the other end of the spring 1 6901, an adjustment block 6903 is disposed at the side of the bayonet 6904, and an adjustment slot 6902 corresponding to the adjustment block 6903 is provided at the side of the holder 66.

[0047] By adopting the above technical solution, when installing the dustproof plate 68, first slide the adjustment block 6903 in the adjustment groove 6902, and the adjustment block 6903 drives the latch 6904 to compress the spring 1 6901 and embed it into the inside of the holder 66, and then insert the latch block 612 on the side of the dustproof plate 68 into the inside of the slot 67, and then release the adjustment block 6903, and the spring 1 6901 rebounds, thereby driving the latch pin 6904 to insert into the inside of the latch hole 611, so as to realize the installation of the dustproof plate 68 and the fan 610.

[0048] When the present embodiment is in use, when installing the dustproof plate 68, first slide the adjustment block 6903 in the adjustment slot 6902, the adjustment block 6903 drives the latch 6904 to compress the spring 1 6901 and embed it into the inside of the holder 66, then insert the latch block 612 on the side of the dustproof plate 68 into the inside of the slot 67, then loosen the adjustment block 6903, the spring 1 6901 rebounds, thereby driving the latch 6904 to insert into the inside of the latch hole 611, so as to realize the installation of the dustproof plate 68 and the fan 610, turn on the fan 610, and the fan 610 sends cold air into the installation box 613, along the connecting pipe 6 16 is sent into the interior of the heating box 65, the cold air is heated by the heating wire 64, and then the heating box 65 is fixed to the side of the experimental box 8 by the bolts 614 and the ear plate 615, and then the temperature in the experimental box 8 is monitored by the temperature sensor 11. When the temperature in the experimental box 8 is lower than the required experimental temperature, the temperature sensor 11 converts the temperature signal into an electrical signal and transmits it to the PLC controller 10. The PLC controller 10 controls the solenoid valve 63 to open, thereby sending the hot air into the interior of the experimental box 8 through the transmission pipe 61 and the shunt pipe 62, thereby realizing the temperature control of the experimental box 8.

[0049] Example 3

[0050] The present embodiment is different from the above-mentioned embodiment in that: the moving mechanism 9 includes a support seat 91, a lifting plate 92, a threaded rod 93, a bevel gear 96, a bevel gear 97, a rotating rod 98, an adjustment assembly 99 and a universal wheel 910. The universal wheel 910 is arranged at the lower corner of the base 1, the threaded rod 93 is rotatably connected to the inner center position of the base 1, the upper end surface of the threaded rod 93 is provided with a bevel gear 96, the side of the bevel gear 96 is meshingly connected with a bevel gear 97, the side of the bevel gear 97 is provided with a rotating rod 98, the other end of the rotating rod 98 is provided with an adjustment assembly 99, the lower end surface of the threaded rod 93 is threadedly connected with the lifting plate 92, and the support seat 91 is arranged at the lower end side edge of the lifting plate 92.

[0051] By adopting the above technical solution, after the device is moved to the specified position by the universal wheel 910, the adjusting component 99 drives the rotating rod 98 to rotate, the rotating rod 98 rotates to drive the bevel gear 1 97 to rotate, the bevel gear 1 97 rotates to drive the bevel gear 2 96 to rotate, the bevel gear 2 96 rotates to drive the threaded rod 93 to rotate, the threaded rod 93 rotates to drive the lifting plate 92 to descend, the lifting plate 92 descends and drives the support seat 91 to descend to contact the ground, thereby ensuring the stability of the device when in use.

[0052] In the present invention, the moving mechanism 9 further includes a slider 94 and a slide groove 95. The side of the lifting plate 92 is provided with the slider 94, and the inner wall of the base 1 is provided with a slide groove 95 corresponding to the slider 94.

[0053] By adopting the above technical solution, when the lifting plate 92 is lifted or lowered, the slider 94 is driven to slide inside the slide groove 95, thereby improving the stability of the lifting plate 92 during the lifting process.

[0054] The present invention further comprises an adjusting assembly 99 comprising a fixing rod 991, a limiting plate 992, a spring 993, a pull rod 994, a handle 995, a turntable 996, a fixing hole 997, a rotating groove 998 and a rotating block 999. A turntable 996 is arranged at the other end of the rotating rod 98, a pull rod 994 is arranged through the side of the turntable 996, a pull rod 995 is arranged at one end of the pull rod 994, a limiting plate 992 is arranged at the other end of the pull rod 994, a fixing rod 991 is arranged at the other end of the limiting plate 992, a surface of the pull rod 994 is located on the side of the limiting plate 992 and is sleeved with a spring 993, a plurality of fixing holes 997 corresponding to the fixing rod 991 are arranged on the side of the base 1, a rotating block 999 is arranged on the surface of the rotating rod 98 inside the base 1, a rotating groove 998 corresponding to the rotating block 999 is arranged inside the base 1,

[0055] By adopting the above technical solution, after the device is moved to the specified position by the universal wheel 910, before the rotating rod 98 is rotated, first pull the handle 995, the handle 995 pulls the pull rod 994, the limit plate 992 and the fixed rod 991, and drives the spring 2 993 to be compressed. At this time, the turntable 996 is rotated, and the rotation of the turntable 996 drives the rotating rod 98 to rotate. The rotation of the rotating rod 98 drives the rotating block 999 to rotate inside the rotating groove 998, thereby avoiding the problem of rotation misalignment of the rotating rod 98.

[0056] When the present embodiment is in use, before rotating the rotating rod 98, first pull the pull handle 995, the pull handle 995 pulls the pull rod 994, the limit plate 992 and the fixed rod 991, and drives the spring 2 993 to be compressed, then the turntable 996 is rotated, the rotation of the turntable 996 drives the rotating rod 98 to rotate, the rotation of the rotating rod 98 drives the rotating block 999 to rotate inside the rotating groove 998, thereby avoiding the problem of misalignment of the rotating rod 98, the rotation of the rotating rod 98 drives the bevel gear 1 97 to rotate, the rotation of the bevel gear 1 97 drives the bevel gear 2 96 to rotate, The rotation of bevel gear 2 96 drives threaded rod 93 to rotate, and the rotation of threaded rod 93 drives lifting plate 92 to descend, and the descent of lifting plate 92 drives support seat 91 to descend until it contacts the ground, thereby ensuring the stability of the device when in use. When lifting plate 92 is lifted or lowered, it drives slider 94 to slide inside slide groove 95, thereby improving the stability of lifting plate 92 during lifting and lowering. At this time, by loosening handle 995, spring 2 993 rebounds, thereby driving fixing rod 991 to insert into another set of fixing holes 997 to achieve the limit of rotating rod 98.

[0057] The present invention further provides a temperature control method for a laboratory temperature control device, comprising the following steps:

[0058] S1: After placing the laboratory sample on the upper end of the support plate 28, turn on the motor 293. The motor 293 drives the bidirectional screw 291 to rotate through the output end. The rotation of the bidirectional screw 291 drives the two sets of nut blocks 292 to approach each other. The two sets of nut blocks 292 approach each other and drive the two sets of positioning plates 294 to approach each other, so as to position and fix the laboratory sample. When the positioning plate 294 slides, it will drive the T-block 296 to slide inside the T-slot 295, thereby improving the stability of the sliding process of the positioning plate 294. Then, by turning on the motor 1 24 in the installation slot 21, the motor 1 24 drives the small gear 25 to rotate through the output end. The small gear 25 rotates to drive the large gear 22 to rotate. The large gear 22 rotates to drive the rotating shaft 23 to rotate. The rotating shaft 23 rotates to drive the support plate 28 to rotate, thereby driving the laboratory sample to rotate. When the support plate 28 rotates, it will drive the sliding rod 27 to rotate inside the annular slide rail 26, thereby improving the stability of the support plate 28 during rotation.

[0059] S2: When installing the dustproof plate 68, first slide the adjustment block 6903 in the adjustment slot 6902, the adjustment block 6903 drives the latch 6904 to compress the spring 1 6901 and embed it into the inside of the holder 66, then insert the latch block 612 on the side of the dustproof plate 68 into the inside of the slot 67, then loosen the adjustment block 6903, the spring 1 6901 rebounds, thereby driving the latch 6904 to insert into the inside of the latch hole 611, so as to realize the installation of the dustproof plate 68 and the fan 610, turn on the fan 610, and the fan 610 sends the cold air into the installation box 613 and sends it along the connecting pipe 616. The cold air is heated by the heating wire 64, and the heating box 65 is fixed to the side of the experimental box 8 by the bolts 614 and the ear plate 615. The temperature in the experimental box 8 is monitored by the temperature sensor 11. When the temperature in the experimental box 8 is lower than the required experimental temperature, the temperature sensor 11 converts the temperature signal into an electrical signal and transmits it to the PLC controller 10. The PLC controller 10 controls the solenoid valve 63 to open, so that the hot air is sent into the interior of the experimental box 8 through the transmission pipe 61 and the shunt pipe 62, thereby realizing the temperature control of the experimental box 8.

[0060] S3: Before rotating the rotating rod 98, first pull the pull handle 995, the pull handle 995 pulls the pull rod 994, the limit plate 992 and the fixed rod 991, and drives the spring 2 993 to compress, then turn the turntable 996, the turntable 996 drives the rotating rod 98 to rotate, the rotation of the rotating rod 98 drives the rotating block 999 to rotate inside the rotating groove 998, thereby avoiding the problem of misalignment of the rotating rod 98, the rotation of the rotating rod 98 drives the bevel gear 1 97 to rotate, the rotation of the bevel gear 1 97 drives the bevel gear 2 96 to rotate, and the bevel gear The rotation of the handle 96 drives the threaded rod 93 to rotate, and the rotation of the threaded rod 93 drives the lifting plate 92 to descend. The descent of the lifting plate 92 drives the support seat 91 to descend until it contacts the ground, thereby ensuring the stability of the device when in use. When the lifting plate 92 is raised or lowered, it drives the slider 94 to slide inside the slide groove 95, thereby improving the stability of the lifting plate 92 during the lifting process. At this time, by loosening the pull handle 995, the spring 993 rebounds, thereby driving the fixing rod 991 to insert into another set of fixing holes 997 to achieve the limitation of the rotating rod 98.

[0061] The heating wire 64 in the present invention is an existing disclosed technology, and the selected model is 0Cr21A16Nb.

[0062] Working principle and use process of the present invention: When the present invention is used, after placing the laboratory sample on the upper end of the support plate 28, the second motor 293 is turned on, and the second motor 293 drives the bidirectional screw 291 to rotate through the output end. The rotation of the bidirectional screw 291 drives the two groups of nut blocks 292 to approach each other, and the two groups of nut blocks 292 approach each other to drive the two groups of positioning plates 294 to approach each other, so as to position and fix the laboratory sample. When the positioning plate 294 slides, it drives the T-block 296 to slide inside the T-slot 295, thereby lifting the positioning plate 294. The stability of the sliding process is improved by opening the motor 1 24 in the installation slot 21. The motor 1 24 drives the small gear 25 to rotate through the output end. The small gear 25 rotates to drive the large gear 22 to rotate. The large gear 22 rotates to drive the rotating shaft 23 to rotate. The rotating shaft 23 rotates to drive the support plate 28 to rotate, thereby driving the laboratory sample to rotate. When the support plate 28 rotates, it drives the slide bar 27 to rotate inside the annular slide rail 26, thereby improving the stability of the support plate 28 during the rotation process. When installing the dustproof plate 68, first slide the adjustment slot 69 02, the adjusting block 6903 drives the latch 6904 to compress the spring 1 6901 and embed it into the inside of the card seat 66, and then insert the card block 612 on the side of the dustproof plate 68 into the inside of the card slot 67, and then loosen the adjusting block 6903, the spring 1 6901 rebounds, thereby driving the latch 6904 to insert into the inside of the card hole 611, so as to realize the installation of the dustproof plate 68 and the fan 610, turn on the fan 610, and the fan 610 sends the cold air into the installation box 613, and then sends it into the inside of the heating box 65 along the connecting pipe 616, through The heating wire 64 heats the cold air, and then the heating box 65 is fixed to the side of the experimental box 8 through the bolts 614 and the ear plate 615, and then the temperature in the experimental box 8 is monitored by the temperature sensor 11. When the temperature in the experimental box 8 is lower than the required experimental temperature, the temperature sensor 11 converts the temperature signal into an electrical signal and transmits it to the PLC controller 10. The PLC controller 10 controls the solenoid valve 63 to open, so that the hot air is sent into the interior of the experimental box 8 through the transmission pipe 61 and the shunt pipe 62, thereby realizing the temperature control of the experimental box 8;Before rotating the rotating rod 98, first pull the pull handle 995, the pull handle 995 pulls the pull rod 994, the limit plate 992 and the fixed rod 991, and drives the spring 2 993 to be compressed, then the turntable 996 is turned, the rotation of the turntable 996 drives the rotating rod 98 to rotate, the rotation of the rotating rod 98 drives the rotating block 999 to rotate inside the rotating groove 998, so as to avoid the problem of misalignment of the rotating rod 98, the rotation of the rotating rod 98 drives the bevel gear 1 97 to rotate, the rotation of the bevel gear 1 97 drives the bevel gear 2 96 to rotate, and the bevel gear 2 99 is rotated. 6 rotates to drive the threaded rod 93 to rotate, and the threaded rod 93 rotates to drive the lifting plate 92 to descend, and the lifting plate 92 descends to drive the support seat 91 to descend to contact the ground, thereby ensuring the stability of the device when in use. When the lifting plate 92 is lifted or lowered, it drives the slider 94 to slide inside the slide groove 95, thereby improving the stability of the lifting plate 92 during the lifting process. At this time, by releasing the pull handle 995, the spring 993 rebounds, thereby driving the fixing rod 991 to insert into another set of fixing holes 997 to achieve the limit of the rotating rod 98. ;

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature control device for a laboratory, comprising a base (1), an experimental box (8) is arranged at the upper end of the base (1), a connecting plate (7) is arranged at the lower end of the side of the experimental box (8), a door panel (4) is arranged on the other side of the experimental box (8), the door panel (4) and the experimental box (8) are rotatably connected via a rotating shaft (5), a handle (3) is arranged on the other side of the door panel (4), four groups of temperature sensors (11) are arranged on the inner wall of the experimental box (8), and a PLC controller (10) is arranged at the side edge of the experimental box (8), characterized in that: A moving mechanism (9) is arranged at the lower end of the base (1), a temperature control mechanism (6) is arranged at the upper end of the connecting plate (7), and an experimental sample positioning mechanism (2) is arranged at the lower end of the interior of the experimental box (8).

2. A laboratory temperature control device according to claim 1, characterized in that: The mounting groove (21), the large gear (22), the rotating shaft (23), the motor 1 (24), the small gear (25), the support plate (28) and the experimental sample fixing assembly (29) are provided. The lower end of the interior of the experimental box (8) is provided with the mounting groove (21), the motor 1 (24) is arranged inside the mounting groove (21), the output end of the motor 1 (24) is provided with the small gear (25), the side of the small gear (25) is meshingly connected with the large gear (22), the rotating shaft (23) is fixedly arranged inside the large gear (22), the upper end of the rotating shaft (23) is provided with the support plate (28), and the experimental sample fixing assembly (29) is arranged inside the support plate (28).

3. A laboratory temperature control device according to claim 2, characterized in that: The experimental sample positioning mechanism (2) also includes an annular slide rail (26) and a slide rod (27). The slide rod (27) is arranged on the lower side of the support plate (28), and the inner lower end of the experimental box (8) is provided with an annular slide rail (26) corresponding to the slide rod (27).

4. A laboratory temperature control device according to claim 2, characterized in that: The experimental sample fixing assembly (29) comprises a bidirectional screw rod (291), a nut block (292), a second motor (293), a positioning plate (294), a T-shaped slot (295), a T-shaped block (296) and a rubber pad (297); the second motor (293) is arranged on the side of the support plate (28); the output end of the second motor (293) is arranged with a bidirectional screw rod (291); two groups of nut blocks (292) are symmetrically arranged on the surface of the bidirectional screw rod (291); the upper end of the nut block (292) is arranged with a positioning plate (294); the side of the positioning plate (294) is arranged with a rubber pad (297); the lower end side of the positioning plate (294) is arranged with a T-shaped block (296); and the upper end of the support plate (28) is provided with a T-shaped slot (295) corresponding to the T-shaped block (296).

5. A laboratory temperature control device according to claim 1, characterized in that: The temperature control mechanism (6) comprises a transmission pipe (61), a shunt pipe (62), a solenoid valve (63), a heating wire (64), a heating box (65), a holder (66), a slot (67), a dustproof plate (68), a fixing assembly (69), a fan (610), a clamping hole (611), a clamping block (612), a mounting box (613), a bolt (614), an ear plate (615) and a connecting pipe (616); a mounting box (613) is arranged at the upper end of the connecting plate (7); a dustproof plate (68) is arranged on the side of the mounting box (613); clamping blocks (612) are arranged on both sides of the dustproof plate (68); a clamping hole (611) is provided on the side of the clamping block (612); a fan (610) is arranged on the other side of the dustproof plate (68); and the mounting box (613) is provided with a clamping hole (611). A holder (66) is provided on the side of the holder (613), a slot (67) is provided on the side of the holder (66), a fixing assembly (69) is provided inside the side of the slot (67), a connecting pipe (616) is provided on the upper end of the installation box (613), a heating box (65) is provided on the upper end of the connecting pipe (616), an ear plate (615) is provided on the side of the heating box (65), the ear plate (615) and the experimental box (8) are fixedly connected by bolts (614), a heating wire (64) is provided inside the heating box (65), a transmission pipe (61) is provided on the upper end of the heating box (65), an electromagnetic valve (63) is provided on the side of the transmission pipe (61), and a shunt pipe (62) is provided on the upper end of the transmission pipe (61) and extends into the interior of the experimental box (8).

6. A laboratory temperature control device according to claim 5, characterized in that: The fixing assembly (69) comprises a spring (6901), an adjustment slot (6902), an adjustment block (6903) and a latch (6904); a spring (6901) is arranged inside the side of the latch slot (67); a latch (6904) is arranged at the other end of the spring (6901); an adjustment block (6903) is arranged on the side of the latch pin (6904); and an adjustment slot (6902) corresponding to the adjustment block (6903) is provided on the side of the holder (66).

7. A laboratory temperature control device according to claim 1, characterized in that: The moving mechanism (9) comprises a support seat (91), a lifting plate (92), a threaded rod (93), a second bevel gear (96), a first bevel gear (97), a rotating rod (98), an adjustment assembly (99) and a universal wheel (910). The universal wheel (910) is arranged at the lower corner of the base (1). The threaded rod (93) is rotatably connected to the inner center of the base (1). The upper end surface of the threaded rod (93) is provided with a second bevel gear (96). The side of the second bevel gear (96) is meshingly connected with the first bevel gear (97). The side of the first bevel gear (97) is provided with a rotating rod (98). The other end of the rotating rod (98) is provided with an adjustment assembly (99). The lower end surface of the threaded rod (93) is threadedly connected with the lifting plate (92). The support seat (91) is arranged at the lower end side edge of the lifting plate (92).

8. A laboratory temperature control device according to claim 7, characterized in that: The moving mechanism (9) further comprises a slider (94) and a slide groove (95); the side of the lifting plate (92) is provided with a slider (94); and the inner wall of the base (1) is provided with a slide groove (95) corresponding to the slider (94).

9. A laboratory temperature control device according to claim 7, characterized in that: The adjustment assembly (99) comprises a fixing rod (991), a limiting plate (992), a second spring (993), a pull rod (994), a handle (995), a rotating disk (996), a fixing hole (997), a rotating groove (998) and a rotating block (999), wherein the other end of the rotating rod (98) is provided with a rotating disk (996), a pull rod (994) is provided through the side of the rotating disk (996), one end of the pull rod (994) is provided with a handle (995), and the other end of the pull rod (994) is provided with a rotating disk (996). A limit plate (992) is provided, and a fixing rod (991) is provided at the other end of the limit plate (992). The surface of the pull rod (994) is located on the side of the limit plate (992) and is sleeved with a second spring (993). The side of the base (1) is provided with a plurality of fixing holes (997) corresponding to the fixing rod (991). The surface of the rotating rod (98) is located inside the base (1) and is provided with a rotating block (999). The inside of the base (1) is provided with a rotating groove (998) corresponding to the rotating block (999).

10. A temperature control method for a laboratory temperature control device according to any one of claims 1 to 9, characterized in that: The steps include: S1: After placing the laboratory sample on the upper end of the support plate (28), the second motor (293) is turned on. The second motor (293) drives the bidirectional screw (291) to rotate through the output end. The rotation of the bidirectional screw (291) drives the two sets of nut blocks (292) to approach each other. The two sets of nut blocks (292) approach each other and drive the two sets of positioning plates (294) to approach each other, thereby positioning and fixing the laboratory sample. When the positioning plate (294) slides, it drives the T-block (296) to slide inside the T-slot (295), thereby lifting the positioning plate (294). The stability of the sliding process is improved by opening the motor 1 (24) in the installation slot (21). The motor 1 (24) drives the small gear (25) to rotate through the output end. The rotation of the small gear (25) drives the large gear (22) to rotate. The rotation of the large gear (22) drives the rotating shaft (23) to rotate. The rotation of the rotating shaft (23) drives the support plate (28) to rotate, thereby driving the laboratory sample to rotate. When the support plate (28) rotates, it drives the slide bar (27) to rotate inside the annular slide rail (26), thereby improving the stability of the support plate (28) during the rotation process; S2: When installing the dustproof plate (68), first slide the adjustment block (6903) in the adjustment slot (6902), and the adjustment block (6903) drives the latch (6904) to compress the spring 1 (6901) and embed it into the inside of the holder (66), and then insert the latch block (612) on the side of the dustproof plate (68) into the inside of the slot (67), and then loosen the adjustment block (6903), and the spring 1 (6901) rebounds, thereby driving the latch pin (6904) to insert into the inside of the latch hole (611), so as to realize the installation of the dustproof plate (68) and the fan (610), and turn on the fan (610), and the fan (610) sends cold air into the installation box (613), along the connecting pipe (61 6) sent into the interior of the heating box (65), the cold air is heated by the heating wire (64), and then the heating box (65) is fixed to the side of the experimental box (8) by bolts (614) and ear plates (615), and then the temperature in the experimental box (8) is monitored by the temperature sensor (11). When the temperature in the experimental box (8) is lower than the temperature required for the experiment, the temperature sensor (11) converts the temperature signal into an electrical signal and transmits it to the PLC controller (10). The PLC controller (10) controls the solenoid valve (63) to open, thereby sending the hot air into the interior of the experimental box (8) through the transmission pipe (61) and the shunt pipe (62), thereby realizing the temperature control of the experimental box (8); S3: Before rotating the rotating rod (98), first pull the pull handle (995), the pull handle (995) pulls the pull rod (994), the limit plate (992) and the fixed rod (991), and drives the spring 2 (993) to be compressed. At this time, the turntable (996) is rotated, and the rotation of the turntable (996) drives the rotating rod (98) to rotate, and the rotation of the rotating rod (98) drives the rotating block (999) to rotate inside the rotating groove (998), thereby avoiding the problem of rotation misalignment of the rotating rod (98). The rotation of the rotating rod (98) drives the bevel gear 1 (97) to rotate, and the rotation of the bevel gear 1 (97) drives the bevel gear 2 (96) to rotate. The rotation of bevel gear 2 (96) drives the threaded rod (93) to rotate, and the rotation of threaded rod (93) drives the lifting plate (92) to descend, and the descent of the lifting plate (92) drives the support seat (91) to descend until it contacts the ground, thereby ensuring the stability of the device when in use. When the lifting plate (92) is raised or lowered, it drives the slider (94) to slide inside the slide groove (95), thereby improving the stability of the lifting plate (92) during the lifting process. At this time, by loosening the handle (995), spring 2 (993) rebounds, thereby driving the fixing rod (991) to insert into the inside of another set of fixing holes (997) to achieve the limit of the rotating rod (98).

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