Movable ultralow-temperature refrigerator

Abstract

The utility model discloses a movable ultra-low temperature refrigerator, and relates to the technical field of ultra-low temperature refrigeration. The device comprises a machine box and a movable box door, a first rotating shaft is rotationally connected to the front face of the machine box, two fixing components are connected to the front end of the first rotating shaft, sliding grooves are formed in the front faces and the back faces of the fixing components, sliding rods are connected to the inner walls of the sliding grooves, and sliding blocks are connected to the outer surfaces of the sliding rods in a sliding mode; the upper surface and the lower surface of the sliding block are slidably connected with the inner wall of the sliding groove, a reset spring is wound on the outer surface of the sliding rod, the right end of the sliding block is connected with two fixing rods, the fixing rods penetrate through the right side surface of the fixing component and are slidably connected with the fixing component, and the right ends of the fixing rods are connected with U-shaped clamping blocks. By arranging the fixing component, the box door of the refrigerator can be firmly fixed, so that the problem that the box door of a traditional ultra-low temperature refrigerator is loosened in the long-time operation process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultra-low temperature freezing, in particular to a movable ultra-low temperature freezer. Background Art

[0002] A refrigerator is a mechanical device that uses a compressor to change the pressure of the refrigerant gas to achieve low-temperature refrigeration. It is similar to an air compressor and can be divided into several different types, such as piston, screw and centrifugal. The refrigerator is one of the most important components of compression refrigeration equipment. The refrigerator is composed of five major parts in series: a compressor, a condenser, an evaporator, a dry filter and an expansion throttle valve. It is filled with an appropriate amount of refrigerant and the electrical appliance controls the operation of the compressor according to environmental requirements to achieve the purpose of refrigeration and heat transfer. The ultra-low temperature refrigerator is one of them. Since it can maintain a temperature lower than minus 50 degrees Celsius, it is often used in scientific research or to maintain the activity of materials.

[0003] In the existing technology, a Chinese patent discloses an "ultra-low temperature freezer" with an application number of "CN202022739895.4". The patent mainly uses a base with an insulation layer to reduce the impact of ground temperature on the inside of the freezer. The insulation layer of the external cabinet plate is used to reduce the impact of the external environment on the inside of the freezer. The support strength between the external cabinet and the internal cabinet is increased by an adjustable support mechanism.

[0004] However, despite the excellent freezing effect of the device, it has an obvious limitation, which is that it cannot be moved, which means that once installed in a certain place, it will not be easily relocated to other places. This may be a disadvantage for occasions where the freezing equipment needs to be moved frequently. In addition, in most cases, once the ultra-low temperature freezer is turned on, it needs to run continuously for a long time. This is because such a freezer needs a certain amount of time before reaching the required ultra-low temperature. This long-term operation not only consumes a lot of energy, but also may cause pressure changes inside the cabinet. This pressure change may cause the cabinet door to become loose when closed, thereby affecting the refrigeration effect of the freezer. Utility Model Content

[0005] The utility model aims to provide a movable ultra-low temperature freezer to solve the problem of loosening of the door of the traditional ultra-low temperature freezer during long-term operation, and to reduce the energy consumption required for refrigeration, thereby improving the refrigeration efficiency of the freezer.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a movable ultra-low temperature freezer, comprising a chassis and a movable door, wherein the chassis is provided with a reinforcement mechanism, a support mechanism and a limit mechanism;

[0008] The front of the chassis is rotatably connected to a first rotating shaft, and the reinforcement mechanism includes two fixing members fixed to the front end of the first rotating shaft, the two fixing members are symmetrical, and a slide groove is provided on the front and back faces of the fixing members, a slide rod is connected to the inner wall of the slide groove, a slider is slidably connected to the outer surface of the slide rod, and the upper and lower surfaces of the slider are slidably connected to the inner wall of the slide groove, a return spring is wound around the outer surface of the slide rod, the left end of the return spring is connected to the right end of the slider, and the right end of the return spring is connected to the inner wall of the slide groove, and the right end of the slider is connected to two fixing rods, the fixing rod passes through the right side surface of the fixing member, the fixing rod is slidably connected to the fixing member, and the right end of the fixing rod is connected to a U-shaped supporting block.

[0009] Furthermore, a connecting plate is connected to the upper surface of the chassis, and fixing grooves are provided on the left and right side surfaces of the connecting plate. Two connecting shafts are provided on the back of the movable door, and the outer surfaces of the connecting shafts are rotatably connected to the inner walls of the fixing grooves.

[0010] Furthermore, a sealing gasket is provided on the top surface of the chassis, and a sealing gasket is provided on the bottom surface of the movable door.

[0011] Furthermore, the limiting mechanism is composed of an electric push rod, a support plate and a fixed pad, the bottom surface of the chassis is connected to the electric push rod, the output end of the electric push rod is connected to the support plate, and the bottom surface of the support plate is connected to the fixed pad.

[0012] Further, the supporting mechanism is composed of a supporting frame, a second rotating shaft, a groove, a universal wheel, a third rotating shaft, a connecting rod and a fourth rotating shaft. The front and rear surfaces of the chassis are connected with a plurality of second rotating shafts. The second rotating shaft passes through the outer surface of the supporting frame. The second rotating shaft is rotatably connected to the supporting frame. The inner wall of the supporting frame is provided with a groove. The inner wall of the groove is rotatably connected with the third rotating shaft. The front end of the third rotating shaft is connected with a connecting rod. The side surface of the connecting rod is connected with the fourth rotating shaft. The front end of the fourth rotating shaft is rotatably connected to the side surface of the support plate.

[0013] Furthermore, a plurality of universal wheels are provided on the bottom surface of the support frame.

[0014] Furthermore, the bottom surface of the fixed pad is connected with an anti-skid pad layer.

[0015] Furthermore, two clamping blocks are provided in front of the movable box door, and the clamping blocks are adapted to the U-shaped supporting blocks.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model can firmly fix the door of the freezer by providing a fixing component to ensure that it will not loosen during operation, which not only improves the reliability and stability of the freezer, but also reduces the energy consumption required for refrigeration, thereby significantly improving the freezing efficiency of the freezer.

[0018] 2. The utility model provides a connecting rod between the support plate and the support frame. When the electric push rod drives the support plate to move downward, the two support frames can be moved away from each other, thereby increasing the support area. The anti-skid pad layer at the bottom of the fixed pad can stabilize the bottom of the entire device, thereby effectively preventing the entire device from sliding when it stops moving.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of a movable ultra-low temperature freezer of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a movable door of a movable ultra-low temperature freezer of the utility model;

[0023] Figure 3 This is a structural schematic diagram of a support plate of a movable ultra-low temperature freezer of the utility model;

[0024] Figure 4 This is a schematic structural diagram of a support frame of a movable ultra-low temperature freezer of the utility model;

[0025] Figure 5 The utility model is a structural schematic diagram of a fixed component of a movable ultra-low temperature freezer.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Chassis; 2. Movable door; 3. Fixed component; 4. Support frame; 11. Connecting plate; 12. Fixed groove; 13. Sealing gasket; 14. Electric push rod; 15. Support plate; 16. Fixed pad; 17. Anti-skid pad; 21. Block; 22. Connecting shaft; 31. First rotating shaft; 32. Slide groove; 33. Slide rod; 34. Sliding block; 35. Reset spring; 36. Fixed rod; 37. U-shaped supporting block; 41. Second rotating shaft; 42. Groove; 43. Universal wheel; 44. Third rotating shaft; 45. Connecting rod; 46. Fourth rotating shaft. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 As shown, the utility model is a movable ultra-low temperature freezer, comprising a case 1 and a movable case door 2, wherein the case 1 is provided with a reinforcement mechanism, a support mechanism and a limit mechanism;

[0030] The front of the chassis 1 is rotatably connected with a first rotating shaft 31, and the reinforcement mechanism includes two fixed components 3 fixed at the front end of the first rotating shaft 31, the two fixed components 3 are symmetrical, and the front and rear surfaces of the fixed components 3 are provided with a sliding groove 32, the inner wall of the sliding groove 32 is connected with a sliding rod 33, and the outer surface of the sliding rod 33 is slidably connected with a slider 34, and the upper and lower surfaces of the slider 34 are slidably connected to the inner wall of the sliding groove 32, and the outer surface of the sliding rod 33 is wound with a return spring 35, the left end of the return spring 35 is connected to the right end of the slider 34, and the right end of the return spring 35 is connected to the inner wall of the sliding groove 32, and the right end of the slider 34 is connected to two fixed rods 36, the fixed rod 36 passes through the right side surface of the fixed component 3, the fixed rod 36 is slidably connected to the fixed component 3, and the right end of the fixed rod 36 is connected to a U-shaped supporting block 37.

[0031] Among them Figure 2 As shown, a connecting plate 11 is connected to the upper surface of the chassis 1, and fixing grooves 12 are provided on the left and right surfaces of the connecting plate 11. Two connecting shafts 22 are provided on the back of the movable door 2, and the outer surfaces of the connecting shafts 22 are rotatably connected to the inner walls of the fixing grooves 12.

[0032] By arranging the outer surface of the connecting shaft 22 to be rotatably connected to the inner wall of the fixing groove 12, the movable door 2 can be opened upward or closed downward.

[0033] Among them Figure 2As shown, a sealing gasket 13 is provided on the top surface of the chassis 1 , and a sealing gasket 13 is provided on the bottom surface of the movable door 2 .

[0034] The sealing gasket 13 is provided to increase the sealing performance between the chassis 1 and the movable door 2 .

[0035] Among them Figure 3 As shown, the limiting mechanism is composed of an electric push rod 14, a support plate 15 and a fixed pad 16. The bottom surface of the chassis 1 is connected to the electric push rod 14, the output end of the electric push rod 14 is connected to the support plate 15, and the bottom surface of the support plate 15 is connected to the fixed pad 16.

[0036] By arranging the electric push rod 14 and the support plate 15 , the electric push rod 14 can drive the fixed pad 16 to move downward.

[0037] Among them Figure 4 As shown, the front and rear surfaces of the chassis 1 are connected with a plurality of second rotating shafts 41, the supporting mechanism is composed of a supporting frame 4, a second rotating shaft 41, a groove 42, a universal wheel 43, a third rotating shaft 44, a connecting rod 45 and a fourth rotating shaft 46, the second rotating shaft 41 passes through the outer surface of the supporting frame 4, the second rotating shaft 41 is rotatably connected to the supporting frame 4, the inner wall of the supporting frame 4 is provided with a groove 42, the inner wall of the groove 42 is rotatably connected with the third rotating shaft 44, the front end of the third rotating shaft 44 is connected with the connecting rod 45, the side surface of the connecting rod 45 is connected with the fourth rotating shaft 46, and the front end of the fourth rotating shaft 46 is rotatably connected to the side surface of the support plate 15.

[0038] By providing a connecting rod 45 between the support frame 4 and the support plate 15 , the electric push rod 14 can drive the two support frames 4 to move away from each other when driving the support plate 15 to move downward.

[0039] Among them Figure 4 As shown, a plurality of universal wheels 43 are provided on the bottom surface of the supporting frame 4 .

[0040] By providing the universal wheels 43, the entire device can be moved.

[0041] Among them Figure 3 As shown, the bottom surface of the fixed pad 16 is connected with an anti-skid pad layer 17 .

[0042] By providing the anti-skid pad layer 17 , when the electric push rod 14 drives the support plate 15 to move downward, the anti-skid pad layer 17 contacts the ground, thereby increasing the friction therebetween.

[0043] Among them Figure 1 As shown, two clamping blocks 21 are provided in front of the movable door 2 , and the clamping blocks 21 are matched with the U-shaped supporting blocks 37 .

[0044] By providing the clamping block 21 to match the U-shaped supporting block 37 , the U-shaped supporting block 37 on the chassis 1 can fix the movable door 2 .

[0045] The bottom of the device is provided with a universal wheel 43, which increases the movable function of the freezer compared to the existing technology, and when the device is stationary, the electric push rod 14 can drive the support plate 15 to move downward, and the two support frames 4 move away from each other, and the anti-skid pad layer 17 contacts the ground, thereby increasing the stability of the entire device and effectively preventing the entire device from sliding when it stops moving;

[0046] When the freezer is working for a long time, in order to ensure that the movable door 2 will not loosen, the device is provided with a clamping block 21 and a U-shaped supporting block 37. When they are matched, the return spring 35 generates downward stress on the U-shaped supporting block 37, so that the movable door 2 is in close contact with the chassis 1, and at the same time cooperates with the sealing gasket 13 to effectively prevent the internal gas of the chassis 1 from leaking out, which not only improves the reliability and stability of the freezer, but also reduces the energy consumption required for refrigeration, thereby significantly improving the freezing efficiency of the freezer.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A movable ultra-low temperature freezer, comprising a case (1) and a movable case door (2), characterized in that: The chassis (1) is provided with a reinforcement mechanism, a support mechanism and a limit mechanism: The front of the chassis (1) is rotatably connected to a first rotating shaft (31); the reinforcement mechanism comprises two fixing members (3) fixed to the front end of the first rotating shaft (31); the two fixing members (3) are symmetrical; the front and rear surfaces of the fixing members (3) are provided with a slide groove (32); the inner wall of the slide groove (32) is connected to a slide rod (33); the outer surface of the slide rod (33) is slidably connected to a slider (34); the upper and lower surfaces of the slider (34) are slidably connected to the inner wall of the slide groove (32); A return spring (35) is wound around the outer surface of the slide rod (33), the left end of the return spring (35) is connected to the right end of the slider (34), the right end of the return spring (35) is connected to the inner wall of the slide groove (32), the right end of the slider (34) is connected to two fixing rods (36), the fixing rods (36) pass through the right side surface of the fixed component (3), the fixing rods (36) are slidably connected to the fixed component (3), and the right end of the fixing rod (36) is connected to a U-shaped supporting block (37).

2. A portable ultra-low temperature freezer according to claim 1, characterized in that: The upper surface of the chassis (1) is connected to a connecting plate (11), and the left and right surfaces of the connecting plate (11) are provided with fixing grooves (12). The back of the movable door (2) is provided with two connecting shafts (22), and the outer surfaces of the connecting shafts (22) are rotatably connected to the inner walls of the fixing grooves (12).

3. A portable ultra-low temperature freezer according to claim 1, characterized in that: The top surface of the chassis (1) is provided with a sealing gasket (13), and the bottom surface of the movable cabinet door (2) is provided with a sealing gasket (13).

4. A portable ultra-low temperature freezer according to claim 1, characterized in that: The limiting mechanism is composed of an electric push rod (14), a support plate (15) and a fixed pad (16); the bottom surface of the chassis (1) is connected to the electric push rod (14); the output end of the electric push rod (14) is connected to the support plate (15); and the bottom surface of the support plate (15) is connected to the fixed pad (16).

5. A portable ultra-low temperature freezer according to claim 4, characterized in that: The support mechanism is composed of a support frame (4), a second rotating shaft (41), a groove (42), a universal wheel (43), a third rotating shaft (44), a connecting rod (45) and a fourth rotating shaft (46); the front and rear surfaces of the chassis (1) are connected with a plurality of second rotating shafts (41); the second rotating shafts (41) penetrate the outer surface of the support frame (4); the second rotating shafts (41) are rotatably connected to the support frame (4); the inner wall of the support frame (4) is provided with a groove (42); the inner wall of the groove (42) is rotatably connected with the third rotating shaft (44); the front end of the third rotating shaft (44) is connected with a connecting rod (45); the side surface of the connecting rod (45) is connected with a fourth rotating shaft (46); the front end of the fourth rotating shaft (46) is rotatably connected to the side surface of the support plate (15).

6. A portable ultra-low temperature freezer according to claim 5, characterized in that: The bottom surface of the support frame (4) is provided with a plurality of universal wheels (43).

7. A portable ultra-low temperature freezer according to claim 4, characterized in that: The bottom surface of the fixed pad (16) is connected to an anti-slip pad layer (17).

8. The portable ultra-low temperature freezer according to claim 1, characterized in that: Two clamping blocks (21) are arranged in front of the movable box door (2), and the clamping blocks (21) are matched with the U-shaped supporting blocks (37).

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