Ultralow-temperature storage type refrigerator

Abstract

The utility model discloses an ultralow-temperature storage type refrigerator, which relates to the technical field of refrigerator manufacturing, and adopts the technical scheme that the ultralow-temperature storage type refrigerator comprises a refrigerator body, an opening and closing door arranged on the front side of the refrigerator body, a plurality of placing trays movably arranged in the refrigerator body, a power assisting component and a plurality of elastic boxes, a guide rod is arranged at the end part of the placing disc; a moving bin is arranged in the elastic box; a telescopic spring is arranged on the bin wall of the moving bin; an elastic plate is arranged at the end part of the telescopic spring; the device has the effects that a worker does not need to drag the placing tray from the outside with strong force, and the telescopic spring provides additional assistance for drawing the placing tray, so that the worker can draw the placing tray in a more labor-saving manner after the side edge of the placing tray is frozen, the worker does not need to drag the placing tray with strong force, and biological samples and experimental samples stored on the surface of the placing tray are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerator manufacturing, and more specifically, to an ultra-low temperature storage type refrigerator. Background Art

[0002] Ultra-low temperature storage refrigerators are devices specially designed to store sensitive items such as biological samples, vaccines, reagents, etc. at extremely low temperatures. Its core working principle is based on cascade refrigeration technology, which uses two sets of compressors and refrigerants to achieve deep cooling through a two-stage compression and heat exchange process.

[0003] When storing biological samples in the laboratory, the staff usually store the biological samples on a placement plate inside the refrigerator. Generally, the staff does not need to take out the placement plate directly. However, when the number of biological samples to be frozen is large and messy, the placement plate needs to be taken out and taken from the placement plate. Since the ultra-low temperature storage refrigerator has an ultra-low temperature function, the stored biological samples may carry water vapor. After ultra-low temperature, the water vapor will adhere to the placement plate and the edge of the placement plate to form frost or even ice. At this time, the staff cannot easily take out the placement plate. Pulling the placement plate too hard may easily knock over the experimental samples. The ultra-low temperature refrigerator needs to be thawed. The operation process is relatively cumbersome. The stored biological samples are also easily damaged during thawing, affecting the accuracy of experiments and research.

[0004] Therefore, in order to solve the above technical problems, the present application proposes an ultra-low temperature storage refrigerator. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an ultra-low temperature storage refrigerator.

[0006] To achieve the above object, the utility model provides the following technical solution: an ultra-low temperature storage refrigerator, comprising a refrigerator body, an opening and closing door arranged at the front side of the refrigerator body, and a plurality of placement trays movably arranged inside the refrigerator body, wherein the placement trays are slidably installed inside the refrigerator body through a clamping block, and further comprising:

[0007] The power assisting assembly is used to assist the user to take out the placement tray from the inside of the refrigerator body, and comprises an elastic box, wherein the elastic box is provided with a plurality of pieces and is embedded in the back of the refrigerator body, a guide rod is provided at the end of the placement tray, a movable bin is provided inside the elastic box, a telescopic spring is provided on the bin wall of the movable bin, an elastic plate is provided at the end of the telescopic spring, a rotating shaft baffle is provided on the surface of the clamping block, and the rotating shaft baffle can rotate to limit the inserted placement tray;

[0008] A sealing component is used to isolate water vapor from entering the power assist component, including a telescopic plate, which is symmetrically arranged up and down inside the mobile warehouse, a telescopic contact is provided at the end of the telescopic plate, a compression spring is provided inside the telescopic plate, and the end of the compression spring is connected to the bottom end of the telescopic contact.

[0009] Preferably, a sliding block which is symmetrical up and down is provided at the opening of the mobile bin, and the surface of the sliding block has an arc and is coated with lubricating silicone grease.

[0010] Preferably, a compression groove is provided on the inner wall of the mobile bin, a sliding rod is provided inside the compression groove, and a piston is provided at the end of the sliding rod.

[0011] Preferably, the upper end of the slide rod is slidably mounted inside the compression groove, and a connecting groove is provided on the side of the compression groove, and the connecting groove is connected to the outside of the elastic box for adjusting the internal pressure of the compression groove.

[0012] Preferably, the end of the guide rod has an arc, and the height of the guide rod is the same as the spacing between the upper and lower sliders and the spacing when the telescopic contact is retracted to the inside of the telescopic plate.

[0013] Preferably, the contact surface between the telescopic contact and the guide rod has an arc, and the guide rod contacts the telescopic contact to compress the telescopic contact into the telescopic plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, the guide rod on the back of the placement tray is inserted into the interior of the mobile bin to squeeze the elastic plate and the telescopic spring, compress the telescopic spring, and limit the outside of the placement tray by rotating the shaft baffle, so that the placement tray can be stably stored inside the refrigerator body. When taking out the placement tray, the shaft baffle is rotated, and the elastic plate is squeezed by the elastic force of the telescopic spring, thereby pushing the placement tray connected to the guide rod, so that the staff does not need to pull hard when extracting the placement tray from the outside. The telescopic spring provides additional assistance for the extraction of the placement tray, so that the staff can extract the placement tray more labor-savingly after the side of the placement tray is frozen, without pulling hard, thereby protecting the biological samples and experimental samples stored on the surface of the placement tray.

[0016] 2. In the utility model, when the guide rod continues to contact the telescopic contact deeply, the guide rod surface has an arc that can squeeze the arc contact surface of the telescopic contact outward, so that the telescopic contact is squeezed into the inside of the telescopic plate. At the same time, the telescopic contact is always in contact with the guide rod. When the guide rod is pulled out, the telescopic spring releases its elastic force outward, and the compression spring rebounds to close the telescopic contact again to ensure internal air tightness. The piston moves downward until the guide rod leaves the inside of the mobile bin. The air tightness of the telescopic spring and the elastic plate is ensured by the sealing assembly to prevent water vapor from entering and freezing the telescopic spring and the elastic plate, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the back structure in the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0022] Figure 5 It is a schematic diagram of the internal structure of the elastic box in the utility model;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of point B in the middle.

[0024] 1. Refrigerator body; 2. Opening and closing door; 3. Placement plate; 4. Block; 5. Elastic box; 6. Guide rod; 7. Moving bin; 8. Telescopic spring; 9. Elastic plate; 10. Rotating shaft baffle; 11. Sliding block; 12. Telescopic plate; 13. Compression spring; 14. Telescopic contact; 15. Connecting groove; 16. Sliding rod; 17. Piston; 18. Compression groove. DETAILED DESCRIPTION

[0025] like Figure 1-6 As shown, the utility model provides an ultra-low temperature storage refrigerator, comprising a refrigerator body 1, an opening and closing door 2 arranged on the front side of the refrigerator body 1, and a plurality of placement trays 3 movably arranged inside the refrigerator body 1, and the placement trays 3 are slidably installed inside the refrigerator body 1 through a clamping block 4.

[0026] The power assist component is used to assist the user to take out the placement tray 3 from the inside of the refrigerator body 1, and includes an elastic box 5. The elastic box 5 is provided with a plurality of elastic boxes, which are embedded in the back of the refrigerator body 1. A guide rod 6 is provided at the end of the placement tray 3. A movable bin 7 is provided inside the elastic box 5. A telescopic spring 8 is provided on the bin wall of the movable bin 7. An elastic plate 9 is provided at the end of the telescopic spring 8. A rotating shaft baffle 10 is provided on the surface of the clamping block 4. The rotating shaft baffle 10 can rotate to limit the inserted placement tray 3.

[0027] The guide rod 6 on the back of the placement tray 3 is inserted into the interior of the movable bin 7 to squeeze the elastic plate 9 and the telescopic spring 8, compress the telescopic spring 8, and limit the outside of the placement tray 3 by the rotation of the shaft baffle 10, so that the placement tray 3 can be stably stored inside the refrigerator body 1. When taking out the placement tray 3, the shaft baffle 10 is rotated, and the elastic plate 9 is squeezed by the elastic force of the telescopic spring 8, thereby pushing the placement tray 3 connected with the guide rod 6, so that the staff does not need to pull hard when extracting the placement tray 3 from the outside. The telescopic spring 8 provides additional assistance for the extraction of the placement tray 3, so that the staff can extract the placement tray 3 more labor-savingly after the side of the placement tray 3 is frozen, without pulling hard, thereby protecting the biological samples and experimental samples stored on the surface of the placement tray 3.

[0028] The sealing component is used to isolate water vapor from entering the power-assisting component to prevent the power-assisting component from being interfered with and frozen by water vapor, and includes a telescopic plate 12, which is symmetrically arranged inside the mobile warehouse 7 from top to bottom, and a telescopic contact 14 is arranged at the end of the telescopic plate 12, and a compression spring 13 is arranged inside the telescopic plate 12, and the end of the compression spring 13 is connected to the bottom end of the telescopic contact 14. A compression groove 18 is opened on the inner wall of the mobile warehouse 7, and a slide rod 16 is arranged inside the compression groove 18. A piston 17 is arranged at the end of the slide rod 16, and the upper end of the slide rod 16 is slidably installed inside the compression groove 18. The compression spring 13 is connected to the bottom end of the compression spring 13. A connecting groove 15 is provided on the side of the compression groove 18, and the connecting groove 15 is connected to the outside of the elastic box 5 and is used to adjust the internal pressure of the compression groove 18. The contact surface between the telescopic contact 14 and the guide rod 6 has an arc. The guide rod 6 contacts the telescopic contact 14 to compress the telescopic contact 14 into the telescopic plate 12. The end of the guide rod 6 has an arc, and the height of the guide rod 6 is the same as the spacing between the upper and lower sliders 11 and the spacing when the telescopic contact 14 is contracted to the inside of the telescopic plate 12. A slider 11 symmetrical in upper and lower directions is provided at the opening of the mobile bin 7. The surface of the slider 11 has an arc and is coated with lubricating silicone grease.

[0029] It should be noted that the lubricating silicone grease on the slider 11 not only plays a lubricating role, but also when the guide rod 6 contacts the surface of the slider 11, the slider 11 and the guide rod 6 form the first sealing section in the mobile bin 7. When the guide rod 6 continues to penetrate into the mobile bin 7, the air pressure inside the mobile bin 7 increases, which can squeeze the piston 17 upward, so that the slide rod 16 slides upward inside the groove wall of the compression groove 18 until the piston 17 moves to the notch of the connecting groove 15 to balance the air pressure.

[0030] When the guide rod 6 continues to contact the telescopic contact 14, the guide rod 6 has an arc on its surface that can squeeze the arc contact surface of the telescopic contact 14 outward, so that the telescopic contact 14 is squeezed into the inside of the telescopic plate 12. At the same time, the telescopic contact 14 is always in contact with the guide rod 6. When the guide rod 6 is pulled out, the telescopic spring 8 releases its elastic force outward, and the compression spring 13 rebounds to close the telescopic contact 14 again to ensure the internal air tightness. The piston 17 moves downward until the guide rod 6 leaves the inside of the mobile bin 7. The air tightness of the telescopic spring 8 and the elastic plate 9 is ensured by the sealing assembly to prevent water vapor from entering and freezing the telescopic spring 8 and the elastic plate 9, thereby improving the practicability of the device.

[0031] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. An ultra-low temperature storage refrigerator, comprising a refrigerator body (1), an opening and closing door (2) arranged at the front side of the refrigerator body (1), and a plurality of placement trays (3) movably arranged inside the refrigerator body (1), wherein the placement trays (3) are slidably installed inside the refrigerator body (1) through a clamping block (4), characterized in that: Also includes: A power assist assembly, used for assisting a user to take out a placement tray (3) from the inside of a refrigerator body (1), comprising an elastic box (5), wherein the elastic box (5) is provided with a plurality of elastic boxes and is embedded in the back of the refrigerator body (1); a guide rod (6) is provided at the end of the placement tray (3); a movable bin (7) is provided inside the elastic box (5); a bin wall of the movable bin (7) is provided with a telescopic spring (8); an elastic plate (9) is provided at the end of the telescopic spring (8); a rotating shaft baffle (10) is provided on the surface of the clamping block (4); the rotating shaft baffle (10) can be rotated to limit the inserted placement tray (3); A sealing component is used to isolate water vapor from entering the power assist component, comprising a telescopic plate (12), wherein the telescopic plate (12) is symmetrically arranged inside a mobile bin (7) from top to bottom, a telescopic contact (14) is provided at the end of the telescopic plate (12), a compression spring (13) is provided inside the telescopic plate (12), and the end of the compression spring (13) is connected to the bottom end of the telescopic contact (14).

2. The ultra-low temperature storage refrigerator according to claim 1, characterized in that: A sliding block (11) which is symmetrical up and down is provided at the opening of the movable bin (7); the surface of the sliding block (11) is curved and coated with lubricating silicone grease.

3. The ultra-low temperature storage refrigerator according to claim 1, characterized in that: A compression groove (18) is provided on the inner wall of the movable bin (7), a slide rod (16) is provided inside the compression groove (18), and a piston (17) is provided at the end of the slide rod (16).

4. The ultra-low temperature storage refrigerator according to claim 3, characterized in that: The upper end of the slide rod (16) is slidably mounted inside the compression groove (18), and a connecting groove (15) is provided on the side of the compression groove (18). The connecting groove (15) is connected to the outside of the elastic box (5) and is used to adjust the internal pressure of the compression groove (18).

5. The ultra-low temperature storage refrigerator according to claim 2, characterized in that: The end of the guide rod (6) has an arc, and the height of the guide rod (6) is the same as the spacing between the upper and lower sliders (11) and the spacing when the telescopic contact (14) is contracted to the inside of the telescopic plate (12).

6. The ultra-low temperature storage refrigerator according to claim 5, characterized in that: The contact surface between the telescopic contact (14) and the guide rod (6) has an arc, and the guide rod (6) contacts the telescopic contact (14) to compress the telescopic contact (14) into the interior of the telescopic plate (12).

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