Ultralow-temperature cold trap structure

Abstract

The utility model discloses an ultralow-temperature cold trap structure which comprises a refrigerating unit used for providing a cold source. The plurality of box bodies are connected with the refrigerating unit, each box body comprises a box body main body and a movable door body, one side of the box body main body is provided with a cavity with an outward opening, and the cavity is used for placing a test piece; the movable door body can move back and forth in the direction towards or away from the cavity so as to open or close the cavity. And locking pieces which are matched with each other are arranged on the movable door body and the box body. According to the utility model, the refrigerating unit and the box body are designed in a split manner, so that the weight required to be weighed is reduced, and the weight detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature cold traps, in particular to an ultra-low-temperature cold trap structure. Background Art

[0002] Ultra-low temperature cold traps are commonly used equipment in laboratories and industrial production. Existing ultra-low temperature cold traps usually adopt an integrated structural design, which increases the overall size and weight of the whole machine. In the early weighing stage, since the test piece is opaque, people can only monitor the production progress of the material in the tank by weight changes. However, since the temperature inside the ultra-low temperature cold trap is too low, the electronic scale cannot work normally under such extreme temperatures. Therefore, the existing weighing usually weighs the ultra-low temperature cold trap as a whole together with the test piece. However, the integrated ultra-low temperature cold trap is heavy, and when a large-scale electronic scale is selected, the weighing is often inaccurate due to low weighing accuracy. In addition, during the operation of the equipment, the user has the need to frequently take and place the workpiece. The integrated ultra-low temperature cold trap does not meet the use requirements and cannot well meet the user's process requirements in some specific environments. Therefore, an ultra-low temperature cold trap structure is urgently needed. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides an ultra-low temperature cold trap structure.

[0004] The utility model discloses an ultra-low temperature cold trap structure, comprising:

[0005] A refrigeration unit, wherein the refrigeration unit is used to provide a cold source;

[0006] Multiple boxes are connected to the refrigeration unit, each of which includes a box body and a movable door body. One side of the box body is provided with a cavity opening outward, and the cavity is used to place test pieces; the movable door body can move back and forth in a direction toward or away from the cavity to open or close the cavity; the movable door body and the box body are provided with locking parts that cooperate with each other.

[0007] As a further improvement of the utility model, an evaporator and an electric heater are provided in the box, and the refrigeration unit is connected to the evaporator of each box;

[0008] The upper and middle part of the front side of the box body is recessed inward to form the chamber, which includes a rectangular chamber near the front end and a semicircular chamber near the rear end, the rectangular chamber and the semicircular chamber are connected, and the rear half of the test piece is placed in the semicircular chamber;

[0009] The movable door is disposed at the front side of the rectangular chamber.

[0010] As a further improvement of the utility model, the movable door body includes a door panel and a movable bracket;

[0011] A protrusion is provided on the upper part of one end of the door plate close to the chamber, the protrusion is adapted to the chamber and can be inserted into the chamber, an arc-shaped notch is provided on one end of the protrusion close to the chamber to match the test piece, and the locking piece is provided on both sides of the door plate and the box body;

[0012] The movable bracket includes an I-shaped base placed under the door panel, and a fixing frame arranged on both sides of the door panel and arranged in the vertical direction; the bottom ends of the fixing frames on both sides are fixedly installed on the two ends of the I-shaped base, and casters are installed under each of the four corners of the I-shaped base.

[0013] As a further improvement of the utility model, the locking member includes a locking buckle, and the locking buckle includes a hook portion and a buckle portion matching the hook portion;

[0014] A plurality of hook parts are arranged on both sides of the door panel along the vertical direction, and a plurality of buckle parts are arranged on both sides of the box body corresponding to the plurality of hook parts.

[0015] As a further improvement of the present invention, a handle is provided on the upper front portion of the door panel for the convenience of users in pulling the door body.

[0016] As a further improvement of the present invention, a sealing strip for sealing is also installed at the fitting portion between the movable door body and the box body.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model adopts a refrigeration unit and a plurality of boxes in a split-type connection, and when weighing, only the boxes need to be weighed. Compared with the existing integrated structure, the weight required to be weighed is reduced and the accuracy of weight detection is improved.

[0019] The utility model adopts a movable door body and a locking piece, and cooperates with a sealing strip to effectively seal the chamber in the box, thereby effectively ensuring that the loss of coldness in the box is small.

[0020] The utility model has a chamber and a movable door body, a simple door opening structure, and is easy to take and put workpieces, thus meeting the needs of operators for frequent taking and putting, and has the advantage of simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of an ultra-low temperature cold trap structure disclosed in one embodiment of the utility model;

[0022] Figure 2This is a structural schematic diagram of a box body of an ultra-low temperature cold trap structure disclosed in one embodiment of the utility model;

[0023] Figure 3 This is a structural schematic diagram of a box body of an ultra-low temperature cold trap structure disclosed in an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the structure of a movable door of an ultra-low temperature cold trap structure disclosed in one embodiment of the utility model;

[0025] Figure 5 This is a schematic structural diagram of a movable door body from another angle of the ultra-low temperature cold trap structure disclosed in an embodiment of the utility model.

[0026] In the figure:

[0027] 1. Refrigeration unit; 2. Box body; 2-1. Box body; 2-11. Chamber; 2-11-1. Rectangular chamber; 2-11-2. Semicircular chamber; 2-2. Movable door; 2-21. Door panel; 2-21-1. Protrusion; 2-21-2. Arc-shaped notch; 2-22. I-shaped base; 2-23. Fixing bracket; 2-24. Casters; 2-25. Handle; 2-3. Cold air circulation motor; 3. Test piece; 4-1. Hook part; 4-2. Buckle part. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0032] like Figure 1-2 As shown, according to an ultra-low temperature cold trap structure provided by the utility model, it includes a refrigeration unit 1 and a plurality of boxes 2 connected to the refrigeration unit, wherein the refrigeration unit 1 is used to provide a cold source; each box 2 includes a box body 2-1 and a movable door 2-2, and one side of the box body 2-1 is provided with a chamber 2-11 with an opening facing outward, and the chamber 2-11 is used to place a test piece 3; the movable door 2-2 can move back and forth in a direction toward or away from the chamber 2-11 to open or close the chamber; the movable door 2-2 and the box 1 are provided with locking members that cooperate with each other.

[0033] In this embodiment, by adopting a split connection between the refrigeration unit 1 and multiple boxes 2, when weighing, only the box 2 needs to be weighed. Compared with the existing integrated structure, it reduces the weight to be weighed and improves the accuracy of weight detection; by adopting a movable door body 2-2 and a locking piece, in conjunction with a sealing strip, the chamber 2-11 in the box 2 can be effectively sealed, effectively ensuring that the loss of cold in the box 2 is small; it meets the needs of operators for frequent taking and placing, and has the advantage of simple operation.

[0034] Specific:

[0035] like Figure 3 As shown, in the above embodiment, preferably, an evaporator and an electric heater are provided in the box body 2, and the refrigeration unit 1 is connected to the evaporator of each box body 2. In this embodiment, a chamber 2-11 is provided at the front end of the box body 2, and an evaporator and an electric heater are provided inside the rear end of the box body 2. A cold air circulation motor is provided at the top of the box body 2 near the rear end.

[0036] In the above embodiment, preferably, the middle and upper part of the front side of the box body 2 is recessed inward to form a chamber 2-11, and the chamber 2-11 includes a rectangular chamber 2-11-1 near the front end and a semicircular chamber 2-11-2 near the rear end. The length and width of the upper part of the rectangular chamber 2-11-1 in this embodiment are smaller than the length and width of the lower part of the rectangular chamber 2-11-1, and the rectangular chamber 2-11-1 and the semicircular chamber 2-11-2 are connected. During installation, the rear half of the test piece 3 is placed in the semicircular chamber 2-11-2, and the front half of the test piece 3 is placed in the rectangular chamber 2-11-1; a movable door 2-2 is provided on the front side of the rectangular chamber 2-11-1.

[0037] like Figure 4-5 As shown, in the above embodiment, preferably, the movable door body 2-2 includes a door panel 2-21 and a movable bracket; a protrusion 2-21-1 is provided on the upper part of one end of the door panel 2-21 close to the chamber 2-11, and the protrusion 2-21-1 is adapted to the chamber 2-11 and can be inserted into the chamber 2-11, and an arc-shaped notch 2-21-2 matching the test piece 3 is provided at one end of the protrusion 2-21-1 close to the chamber 2-11, and locking parts are provided on both sides of the door panel 2-21 and the box body 2; in this embodiment, the setting of the protrusion 2-21-1 can seal the user's test piece in the process of closing the door panel 2-21, and also play a guiding and limiting role in the process of pushing the door body 2-21 into the chamber 2-11 of the box body 2.

[0038] In the above embodiment, preferably, the protrusion 2-21-1 on the door panel 2-21 is adapted to the upper portion of the rectangular chamber 2-11-1.

[0039] In the above embodiment, preferably, the movable bracket includes an I-shaped base 2-22 placed below the door panel 2-21, and fixed frames 2-23 arranged on both sides of the door panel 2-21 and arranged in the vertical direction; the bottom ends of the fixed frames 2-23 on both sides are fixedly installed at both ends of the I-shaped base 2-22, and casters 2-24 are respectively installed below the four corners of the I-shaped base 2-22. In this embodiment, the door panel 2-21 is installed on the rod in the middle of the I-shaped base 2-22, and the four casters 2-24 are respectively installed below the four corners of the I-shaped base 2-22.

[0040] In the above embodiment, preferably, the locking member includes a locking buckle, and the locking buckle includes a hook portion 4-1 and a buckle portion 4-2 that cooperates with the hook portion 4-1; a plurality of hook portions 4-1 are provided on both sides of the door panel 2-21 along the vertical direction, and a plurality of buckle portions 4-2 are provided on both sides of the box body 2 corresponding to the plurality of hook portions 4-1.

[0041] In the above embodiment, preferably, a handle 2-25 for users to pull the door body is also provided on the upper front portion of the door panel 2-21.

[0042] In the above embodiment, preferably, a sealing strip for sealing is also installed at the fitting part between the movable door body and the box body 2. In the present embodiment, a sealing strip is arranged on the fitting surface between the door panel 2-21 and the front face of the box body 2-1. The sealing strip can cooperate with the locking buckle to better seal the chamber 2-11 of the split box body 2, thereby ensuring less loss of cooling in the box body 2-1.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ultra-low temperature cold trap structure, characterized in that: include: A refrigeration unit, wherein the refrigeration unit is used to provide a cold source; Multiple boxes are connected to the refrigeration unit, each of which includes a box body and a movable door body. One side of the box body is provided with a cavity opening outward, and the cavity is used to place test pieces; the movable door body can move back and forth in a direction toward or away from the cavity to open or close the cavity; the movable door body and the box body are provided with locking parts that cooperate with each other.

2. The ultra-low temperature cold trap structure according to claim 1, characterized in that: The box body is provided with an evaporator and an electric heater, and the refrigeration unit is connected to the evaporator of each box body; The upper and middle part of the front side of the box body is recessed inward to form the chamber, which includes a rectangular chamber near the front end and a semicircular chamber near the rear end, the rectangular chamber and the semicircular chamber are connected, and the rear half of the test piece is placed in the semicircular chamber; The movable door is disposed at the front side of the rectangular chamber.

3. The ultra-low temperature cold trap structure according to claim 1, characterized in that: The movable door body comprises a door panel and a movable bracket; A protrusion is provided on the upper part of one end of the door plate close to the chamber, the protrusion is adapted to the chamber and can be inserted into the chamber, an arc-shaped notch is provided on one end of the protrusion close to the chamber to match the test piece, and the locking piece is provided on both sides of the door plate and the box body; The movable bracket includes an I-shaped base placed under the door panel, and a fixing frame arranged on both sides of the door panel and arranged in the vertical direction; the bottom ends of the fixing frames on both sides are fixedly installed on the two ends of the I-shaped base, and casters are installed under each of the four corners of the I-shaped base.

4. The ultra-low temperature cold trap structure according to claim 3, characterized in that: The locking member comprises a locking buckle, and the locking buckle comprises a hook portion and a buckle portion matched with the hook portion; A plurality of hook parts are arranged on both sides of the door panel along the vertical direction, and a plurality of buckle parts are arranged on both sides of the box body corresponding to the plurality of hook parts.

5. The ultra-low temperature cold trap structure according to claim 3, characterized in that: The front upper part of the door panel is also provided with a handle for users to pull the door body.

6. The ultra-low temperature cold trap structure according to claim 1, characterized in that: The fitting part between the movable door body and the box body is also provided with a sealing strip for sealing.

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