Constant-temperature test tube rack

By designing an adjustable test tube groove and heating plate and fan in a constant temperature test tube rack, the problems of the existing constant temperature test tube rack in the fixed temperature test tube rack are solved, achieving higher versatility and more accurate experimental results.

CN222766375UActive Publication Date: 2025-04-18SHENZHEN SHANGDA TECH ENG CO LTD
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Patent Information

Application Number
CN202421659773.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-04-18
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

The existing constant temperature test tube holders have limitations in size design, which cannot adapt to test tubes of different sizes, and the temperature distribution of the heating plate is uneven, which affects the heating effect of the test tube and the accuracy of the experimental results.

Method used

A constant temperature test tube rack including grooves, drawers, heating devices and control panels is designed. By setting an adjustable test tube groove and abutment device in the drawer, it can adapt to test tubes of different sizes; the combination design of the heating plate and the fan can achieve uniform temperature distribution through the ventilation port and the heat dissipation hole.

Benefits of technology

This design can adapt to test tubes of different sizes, improving the versatility and convenience of test tube stands; the heating effect is more uniform, shortening the heating time and improving the accuracy of experimental results.

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Abstract

The utility model discloses a constant-temperature test tube rack which comprises a device body, a first groove is formed in the front side of the device body, a drawer is slidably connected in the first groove, a handle is fixedly connected to the center of the top of the front side of the drawer, a through hole is formed in the center of the top of the device body, a heating device is arranged in the through hole, and a control panel is arranged on one side of the top of the device body. Accommodating cavities are formed in four corners of the bottom of the device body respectively, four groups of supporting devices are arranged in the four accommodating cavities in a penetrating manner respectively, universal wheels are movably connected to the four corners of the bottom of the device body on one sides of the supporting devices respectively, a charging port is formed in one side of the device body, and two groups of dismounting devices are symmetrically arranged on two sides of a through hole in the top of the device body. Through the application of the abutting device, the device can adapt to test tubes with different sizes, and through the application of the heating device, the heating time is shortened, and the temperature is more uniform. And through application of the dismounting device, rapid dismounting and cleaning of the dustproof net can be realized, and the maintenance convenience of the equipment is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of reproductive appliances, in particular to a constant temperature test tube rack. Background Art

[0002] The most commonly used instrument in reproductive medicine is the test tube. The test tube rack is the most basic experimental instrument in a chemical laboratory used to place test tubes and ensure the safety of samples. The test tube rack is an indispensable experimental instrument in the medical experiment process. For some reagents that need to be kept at a constant temperature, a constant temperature test tube rack is needed.

[0003] Announcement No. CN219816333U includes a device body, a storage drawer is arranged on the front of the device body, a handle is fixedly installed on the front of the storage drawer, the interior of the storage drawer is divided into a placement area by a partition plate, a label box is fixedly installed on one side of the partition plate, and a label slot is provided on the upper surface of the label box. This constant temperature test tube rack is arranged by the cooperation of the protective pad and the placement hole. When in use, the test tube is placed in the placement hole, and then protected by the protective pad, thereby playing a role in protecting the test tube, so that the practicality of the device is improved. The telescopic rod and the connecting plate are arranged in cooperation. When in use, the connecting plate is moved by the telescopic rod, and then the test tube is pushed out by the connecting plate, thereby playing a role in facilitating the staff to take the test tube.

[0004] In addition, the existing constant temperature test tube rack has the following disadvantages during use:

[0005] (1) The existing constant temperature test tube rack has certain limitations in size design. Since the test tubes are of different sizes, and there is a lack of flexible adjustment devices in the test tube slot, this greatly limits its versatility and ease of use;

[0006] (2) The existing constant temperature test tube rack heating plates are limited to the layout on both sides of the drawer, resulting in uneven temperature distribution, which affects the heating effect of the test tube and the accuracy of the experimental results. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a constant temperature test tube rack.

[0008] In order to solve the above problems, the technical solution of the utility model is as follows: comprising a device body, a groove one is provided on the front side of the device body, a drawer is slidably connected inside the groove one, a handle is fixedly connected to the center of the top of the drawer, a through hole is provided at the center of the top of the device body, a heating device is provided inside the through hole, a control panel is provided on one side of the top of the device body, cavities are provided at the four corners of the bottom of the device body, four groups of supporting devices are respectively penetrated inside the four cavities, the four corners of the bottom of the device body are located on one side of the supporting device and are movably connected to universal wheels, a charging port is provided on one side of the device body, and two groups of disassembly devices are symmetrically provided on the top of the device body on both sides of the through hole;

[0009] The drawer includes a cabinet body, a slot plate, slot holes, a test tube slot, a temperature sensing device, a vent and abutment device. The cabinet body is provided with temperature sensing devices on both sides of the top. The drawer is provided with two slot plates inside. The bottom side of the drawer is provided with a number of equidistant slots. The tops of the two slot plates are respectively provided with a number of equidistant test tube slots. The inner walls of the test tube slots are symmetrically provided with two groups of abutment devices. Ventilation ports are respectively provided on both sides of the two slot plates.

[0010] Furthermore, the heating device includes a dustproof net, a support frame, a fan, a heating plate, a heat dissipation hole and a pull ring. A dustproof net is provided on the top of the through hole, and a pull ring is fixedly connected at the center of the top of the dustproof net. A heating plate is provided at the bottom of the through hole, and a plurality of equidistant heat dissipation holes are provided on the top of the heating plate. A support frame is provided on the side opposite to the dustproof net and the heating plate, and a fan is provided at the center of the bottom of the support frame.

[0011] Furthermore, each group of the supporting devices respectively includes a fixing seat 2, a hollow motor, a rotating shaft, a nut 1 and a screw. One side of the interior of the cavity is fixedly connected to the fixing seat 2, the bottom of the fixing seat 2 is fixedly connected to the hollow motor, a rotating shaft is provided at the bottom of the hollow motor, the bottom end of the rotating shaft is fixedly connected to a nut 1, a screw is passed through the interior of the rotating shaft, and the outer wall of the screw is threadedly connected to the inner wall of the nut 1.

[0012] Furthermore, each group of the abutment device includes a damping rod, a spring 1, a U-shaped fixing frame and a U-shaped anti-slip pad. A damping rod is provided on one side of the inner wall of the test tube groove, one end of the damping rod abuts against the inner wall of the test tube groove, and the other end is fixedly connected to the U-shaped fixing frame. A spring 1 is provided on the outer wall of the damping rod, and the side of the U-shaped fixing frame away from the damping rod is fixedly connected to the U-shaped anti-slip pad.

[0013] Furthermore, each group of the disassembly device includes a fixing seat 1, a fixing plate, a groove 2, a rotating rod, a fixing block and a rubber pad. The fixing seat 1 is hinged to the fixing plate on the top side away from the dustproof net, a groove 2 is provided at the center of the top of the fixing plate away from the hinge, a rotating rod is provided inside the groove 2, one end of the rotating rod is fixedly connected to the fixing seat 1, and the other end is connected to the fixing block by a bearing, the fixing block is adaptably connected to the groove 2, and the bottom of the fixing plate on the side away from the fixing seat 1 is fixedly connected to the rubber pad.

[0014] Furthermore, each group of the supporting device also includes nut 2, a sleeve and a support seat, the screw rod passes through the bottom of the device body and is threadedly connected to nut 2, the top of nut 2 is fixedly connected to the device body, the bottom of nut 2 is fixedly connected to the sleeve, the bottom inner wall of the sleeve is inserted into the support seat, a through cavity is provided inside the support seat, a spring 2 is provided inside the through cavity, one end of the spring 2 is fixedly connected to the inner wall of the sleeve, and the other end is fixedly connected to the inner wall of the support seat, and the bottom end of the screw rod passes through the spring 2 bearing to connect to the inner wall of the support seat.

[0015] The advantages of the utility model compared with the existing technology are:

[0016] 1. The utility model provides a constant temperature test tube rack. To meet the needs of test tubes of different sizes, the tops of the two slot plates are provided with test tube slots. The inner walls of the test tube slots are symmetrically provided with two sets of abutment devices. Through the cooperation of the spring 1 and the damping rod, the test tubes of different sizes can be adapted. At the same time, the shock absorption effect of the test tubes is increased. Through the use of the U-shaped anti-skid pad, the hard contact between the test tube and the U-shaped fixing frame is avoided.

[0017] 2. The utility model provides a constant temperature test tube rack. The heating plate is started through the control panel, the heating plate starts to heat, and then the fan is started through the control panel, the fan starts to rotate, the heating plate is provided with heat dissipation holes, and vents are provided on both sides of the slot plate. The wind blown out by the rotating fan reaches each test tube evenly through the heat dissipation holes and the vents, shortening the heating time and making the temperature more uniform;

[0018] 3. The utility model provides a constant temperature test tube rack, and a disassembly device is provided on the top of the dustproof net. When the dustproof net needs to be disassembled, the fixed block is rotated so that the fixed block and the second groove are at the same level, the fixed plate is folded, and the pull ring on the top of the dustproof net is pulled to realize the rapid disassembly and cleaning of the dustproof net, thereby improving the maintenance convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereogram of the utility model.

[0020] Figure 2 yes Figure 1 A three-dimensional view of the device body.

[0021] Figure 3 yes Figure 1Three-dimensional view of the middle drawer.

[0022] Figure 4 It is a three-dimensional diagram of the structure near the trough plate.

[0023] Figure 5 This is an enlarged top view of the internal structure of the test tube tank.

[0024] Figure 6 yes Figure 1 Schematic diagram of the explosion of the heating device.

[0025] Figure 7 yes Figure 1 A three-dimensional view of the disassembly device.

[0026] Figure 8 yes Figure 2 Schematic diagram of the internal section at point A in the middle.

[0027] As shown in the figure: 1. Device body; 2. Groove 1; 3. Drawer; 301. Cabinet; 302. Groove plate; 303. Groove hole; 304. Test tube groove; 305. Temperature sensing device; 306. Ventilation hole; 307. Abutment device; 3071. Damping rod; 3072. Spring 1; 3073. U-shaped fixing bracket; 3074. U-shaped anti-skid pad; 4. Handle; 5. Through hole; 6. Heating device; 601. Dustproof net; 602. Support frame; 603. Fan; 604. Heating plate; 605. Heat dissipation hole; 606, pull ring; 7, cavity; 8, supporting device; 801, fixing seat 2; 802, hollow motor; 803, rotating shaft; 804, nut 1; 805, screw; 806, nut 2; 807, sleeve; 808, supporting seat; 809, through cavity; 810, spring 2; 9, control panel; 10, universal wheel; 11, charging port; 12, disassembly device; 121, fixing seat 1; 122, fixing plate; 123, groove 2; 124, rotating rod; 125, fixing block; 126, rubber pad. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] like Figure 1 and Figure 2As shown, it includes a device body 1, a groove 2 is provided on the front side of the device body 1, a drawer 3 is slidably connected inside the groove 2, a handle 4 is fixedly connected to the center of the top of the drawer 3, a through hole 5 is provided at the center of the top of the device body 1, a heating device 6 is provided inside the through hole 5, a control panel 9 is provided on one side of the top of the device body 1, cavities 7 are respectively provided at the four corners of the bottom of the device body 1, four groups of supporting devices 8 are respectively penetrated inside the four cavities 7, universal wheels 10 are movably connected to the four corners of the bottom of the device body 1 located on one side of the supporting device 8, a charging port 11 is provided on one side of the device body 1, and two groups of disassembly devices 12 are symmetrically provided on both sides of the through hole 5 on the top of the device body 1.

[0030] like Figure 3 and Figure 4 As shown, the drawer 3 includes a cabinet body 301, a slot plate 302, slot holes 303, a test tube slot 304, a temperature sensing device 305, a vent 306 and abutment device 307. The cabinet body 301 has temperature sensing devices 305 on both sides of the top, two slot plates 302 are arranged inside the drawer 3, a plurality of equidistant slot holes 303 are arranged on the bottom side of the drawer 3, a plurality of equidistant test tube slots 304 are respectively penetrated on the top of the two slot plates 302, two groups of abutment devices 307 are symmetrically arranged on the inner walls of the plurality of test tube slots 304, vents 306 are respectively arranged on both sides of the two slot plates 302, the test tube slots 304 correspond one to one with the slot holes 303, and the temperature sensing device is electrically connected to the control panel 9.

[0031] like Figure 5 As shown, each group of abutment devices 307 includes a damping rod 3071, a spring 3072, a U-shaped fixing frame 3073 and a U-shaped anti-slip pad 3074. A damping rod 3071 is provided on one side of the inner wall of the test tube slot 304, one end of the damping rod 3071 abuts against the inner wall of the test tube slot 304, and the other end is fixedly connected to the U-shaped fixing frame 3073. A spring 3072 is provided on the outer wall of the damping rod 3071, and the side of the U-shaped fixing frame 3073 away from the damping rod 3071 is fixedly connected to the U-shaped anti-slip pad 3074.

[0032] like Figure 6 As shown, the heating device 6 includes a dustproof net 601, a support frame 602, a fan 603, a heating plate 604, a heat dissipation hole 605 and a pull ring 606. A dustproof net 601 is provided at the top of the through hole 5, and the pull ring 606 is fixedly connected at the center of the top of the dustproof net 601. A heating plate 604 is provided at the bottom of the through hole 5, and a plurality of equidistant heat dissipation holes 605 are provided at the top of the heating plate 604. A support frame 602 is provided on the side opposite to the dustproof net 601 and the heating plate 604, and a fan 603 is provided at the center of the bottom of the support frame 602. The bottom of the dustproof net 601 abuts against the top of the support frame 602, the outer wall of the support frame 602 is fixedly connected to the inner wall of the through hole 5, the outer wall of the heating plate is fixedly connected to the inner wall of the through hole 5, the fan 603 is electrically connected to the control panel 9, and the heating plate 604 is electrically connected to the control panel 9.

[0033] like Figure 7 As shown, each group of disassembly devices 12 includes a fixing seat 121, a fixing plate 122, a groove 123, a rotating rod 124, a fixing block 125 and a rubber pad 126. The fixing seat 121 is hinged to the fixing plate 122 on the top side away from the dustproof net 601. A groove 123 is provided at the center of the top of the fixing plate 122 away from the hinge. A rotating rod 124 is provided inside the groove 123. One end of the rotating rod 124 is fixedly connected to the fixing seat 121, and the other end is connected to the fixing block 125 with a bearing. The fixing block 125 is adaptively connected to the groove 123. The bottom of the fixing plate 122 away from the fixing seat 121 is fixedly connected to the rubber pad 126.

[0034] like Figure 8 As shown, each group of supporting devices 8 includes a second fixing seat 801, a hollow motor 802, a rotating shaft 803, a nut 804 and a screw 805. One side of the cavity 7 is fixedly connected to the second fixing seat 801, the bottom of the second fixing seat 801 is fixedly connected to the hollow motor 802, a rotating shaft 803 is provided at the bottom of the hollow motor 802, and the bottom end of the rotating shaft 803 is fixedly connected to the nut 804. A screw 805 is penetrated inside the rotating shaft 803, and the outer wall of the screw 805 is threadedly connected to the inner wall of the nut 804. Each group of supporting devices 8 also includes a second nut 806, a sleeve 807 and a supporting seat 808. The screw 805 passes through the bottom of the device body 1 and is threadedly connected to the nut 806. The top of the nut 806 is fixedly connected to the device body 1. The bottom of the nut 806 is fixedly connected to the sleeve 807. The inner wall of the bottom of the sleeve 807 is inserted into the support seat 808. A through cavity 809 is provided inside the support seat 808. A spring 810 is provided inside the through cavity 809. One end of the spring 810 is fixedly connected to the inner wall of the sleeve 807, and the other end is fixedly connected to the inner wall of the support seat 808. The bottom end of the screw 805 passes through the spring 810 bearing and is connected to the inner wall of the support seat 808. The hollow motor 802 is electrically connected to the control panel 9.

[0035] In specific use, refer to Figures 1 to 8As shown, when it is needed, the handle 4 is pulled, the drawer 3 slides out, and the test tube is placed in the test tube slot 303. In order to accommodate test tubes of different sizes, the tops of the two slot plates 302 are provided with test tube slots 304, and the inner walls of the test tube slots 304 are symmetrically provided with two abutment devices 307. Through the cooperation of the damping rod 3071 and the spring 1 3072, it can adapt to test tubes of different sizes and increase the shock absorption effect of the test tube. Through the use of the U-shaped anti-skid pad 3074, the hard contact between the test tube and the U-shaped fixing frame 3073 is avoided. The heating is started through the control panel 9. The heating plate 604 starts to heat. In order to further improve the heating efficiency and temperature uniformity, the fan 603 is started through the control panel 9. The fan 603 starts to rotate. The heat dissipation holes 605 on the heating plate 604 and the vents 306 on both sides of the slot plate 302 form an air flow channel to ensure that the wind blown by the fan 603 can evenly and quickly penetrate each test tube to achieve a fast and uniform heating effect. When the specified temperature is reached, the temperature sensing device 305 responds immediately and automatically cuts off the power supply of the heating plate 604. At the same time, the fan 603 switches to natural Wind mode, maintain the constant temperature in the test tube, ensure the precise control of the experimental environment, in order to maintain the cleanliness and efficient operation of the equipment, a disassembly device 12 is provided on the top of the dustproof net 601. When disassembly is required, rotate the fixed block 125 so that the fixed block 125 and the groove 123 are at the same level, fold the fixed plate 122, pull the pull ring 606 on the top of the dustproof net 601, and complete the disassembly of the dustproof net 601 for easy cleaning. In order to prevent the device body 1 from moving at will, four supporting devices 8 are provided at the four corners of the bottom of the device body 1. When the device needs to be fixed, The hollow motor 802 is started through the control panel 9, and the hollow motor 802 starts to drive the rotating shaft 803 to rotate. The rotation of the rotating shaft 803 drives the nut 804 to rotate. The nut 804 is threadedly connected to the screw 805. The rotation of the nut 804 drives the screw 805 to rotate, thereby ensuring the stable extension of the support seat 808. When it is necessary to move, the hollow motor 802 is started again through the control panel 9, and the hollow motor 802 rotates in the opposite direction to complete the contraction. This not only ensures the stability of the device during use, but also takes into account the convenience of movement and storage.

[0036] The electrical components appearing in this article are all electrically connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] 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.

[0039] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A constant temperature test tube rack, characterized in that: The invention comprises a device body (1), wherein a groove (2) is provided on the front side of the device body (1), a drawer (3) is slidably connected inside the groove (2), a handle (4) is fixedly connected at the center of the top of the drawer (3), a through hole (5) is provided at the center of the top of the device body (1), a heating device (6) is provided inside the through hole (5), a control panel (9) is provided on one side of the top of the device body (1), cavities (7) are provided at the four corners of the bottom of the device body (1), four groups of supporting devices (8) are respectively penetrated inside the four cavities (7), universal wheels (10) are movably connected to the four corners of the bottom of the device body (1) located on one side of the supporting device (8), a charging port (11) is provided on one side of the device body (1), and two groups of disassembly devices (12) are symmetrically provided on both sides of the through hole (5) at the top of the device body (1); The drawer (3) comprises a cabinet (301), a slot plate (302), slot holes (303), a test tube slot (304), a temperature sensing device (305), a vent (306) and an abutting device (307); the cabinet (301) is provided with temperature sensing devices (305) on both sides of the top; two slot plates (302) are provided inside the drawer (3); a plurality of slot holes (303) are provided at equal intervals on the bottom side of the drawer (3); a plurality of test tube slots (304) are respectively penetrated on the tops of the two slot plates (302); two groups of abutting devices (307) are symmetrically provided on the inner walls of the plurality of test tube slots (304); and vents (306) are respectively provided on both sides of the two slot plates (302).

2. A constant temperature test tube rack according to claim 1, characterized in that: Each group of the abutment devices (307) comprises a damping rod (3071), a spring 1 (3072), a U-shaped fixing frame (3073) and a U-shaped anti-skid pad (3074); a damping rod (3071) is provided on one side of the inner wall of the test tube slot (304); one end of the damping rod (3071) abuts against the inner wall of the test tube slot (304), and the other end is fixedly connected to the U-shaped fixing frame (3073); a spring 1 (3072) is sleeved on the outer wall of the damping rod (3071); and a side of the U-shaped fixing frame (3073) away from the damping rod (3071) is fixedly connected to the U-shaped anti-skid pad (3074).

3. A constant temperature test tube rack according to claim 1, characterized in that: The heating device (6) comprises a dustproof net (601), a support frame (602), a fan (603), a heating plate (604), a heat dissipation hole (605) and a pull ring (606); a dustproof net (601) is provided at the top of the through hole (5); a pull ring (606) is fixedly connected at the center of the top of the dustproof net (601); a heating plate (604) is provided at the bottom of the through hole (5); a plurality of heat dissipation holes (605) are provided at equal distances at the top of the heating plate (604); a support frame (602) is provided on the side opposite to the dustproof net (601) and the heating plate (604); a fan (603) is provided at the center of the bottom of the support frame (602).

4. A constant temperature test tube rack according to claim 1, characterized in that: Each group of the disassembly device (12) comprises a fixing seat (121), a fixing plate (122), a groove (123), a rotating rod (124), a fixing block (125) and a rubber pad (126); the fixing seat (121) is hingedly connected to the fixing plate (122) on one side of the top away from the dustproof net (601); a groove (123) is provided at the center of the top of the fixing plate (122) away from the hinge; a rotating rod (124) is provided inside the groove (123); one end of the rotating rod (124) is fixedly connected to the fixing seat (121) and the other end is connected to the fixing block (125) by a bearing; the fixing block (125) is adaptively connected to the groove (123); the bottom of the fixing plate (122) away from the fixing seat (121) is fixedly connected to the rubber pad (126).

5. A constant temperature test tube rack according to claim 1, characterized in that: Each group of the supporting devices (8) comprises a second fixing seat (801), a hollow motor (802), a rotating shaft (803), a nut (804) and a screw (805). One side of the interior of the cavity (7) is fixedly connected to the second fixing seat (801). The bottom of the second fixing seat (801) is fixedly connected to the hollow motor (802). The bottom of the hollow motor (802) is provided with a rotating shaft (803). The bottom end of the rotating shaft (803) is fixedly connected to the nut (804). A screw (805) is passed through the interior of the rotating shaft (803). The outer wall of the screw (805) is threadedly connected to the inner wall of the nut (804).

6. A constant temperature test tube rack according to claim 5, characterized in that: Each group of the supporting device (8) further comprises a nut (806), a sleeve (807) and a supporting seat (808); the screw (805) passes through the bottom of the device body (1) and is threadedly connected to the nut (806); the top of the nut (806) is fixedly connected to the device body (1); the bottom of the nut (806) is fixedly connected to the sleeve (807); the inner wall of the bottom of the sleeve (807) is plugged into the supporting seat (808); a through cavity (809) is provided inside the supporting seat (808); a spring (810) is provided inside the through cavity (809); one end of the spring (810) is fixedly connected to the inner wall of the sleeve (807) and the other end is fixedly connected to the inner wall of the supporting seat (808); the bottom end of the screw (805) passes through the bearing of the spring (810) and is connected to the inner wall of the supporting seat (808).

Citation Information

Patent Citations

  • Constant-temperature test tube rack

    CN219816333U