Glove hole small door structure of high and low temperature box door body

Abstract

The utility model provides a glove hole small door structure of a high and low temperature box door body, which comprises a door body, a mounting hole is arranged in the middle of the door body, the upper side and the lower side in the mounting hole are respectively provided with a window glass, a stainless steel component is arranged between the upper window glass and the lower window glass, and a glove hole is formed in the stainless steel component. A blocking door is hinged to the door body and located on the side edge of the mounting hole. Compared with the prior art, the sealing door has the following beneficial effects that the sealing door is free of cold leakage in the low-temperature operation process of equipment, a user test piece is free of frosting, the product performance is stable, the energy consumption of the equipment is effectively saved, the cold leakage of the inner box needs to be balanced by the power output of the compressor according to the law of conservation of energy, and the service life is prolonged. A white silica gel plate adopted in the existing technical scheme is denatured under a low-temperature condition, and is damaged after being repeatedly used by a user, so that cold leakage at glove holes is serious, and the test of test pieces and products of the user is influenced.

Description

Technical Field

[0001] The utility model relates to a glove hole small door structure of a high and low temperature box door body, belonging to the field of test boxes. Background Art

[0002] During the low-temperature test of the equipment, the door of the low-temperature equipment cannot be opened. In order to facilitate users to take and place test pieces during the operation of the low-temperature equipment, glove holes are currently configured on the door of the low-temperature equipment. In this way, during the test, the user wears gloves and directly reaches into the white silicone plate on the outside of the glove hole, passes through the middle epoxy resin tube, and then passes through the inner white silicone plate to enter the inner box to take and place the test pieces, and then extends his arm after completion.

[0003] In the prior art, the glove hole is usually opened on the door body by opening holes in the door body sheet metal and foam layer, and an epoxy resin tube is passed through the middle. The outer and inner sides of the glove hole of the door body are riveted and fixed with the test hole hardware A, and at the same time, it is plugged with the epoxy resin tube. A round hole is cut in the middle of the test hole hardware, and two 2mm thick white silicone plates are cut into a cross shape on the inner side (staggered 30 degrees front and back), and a stainless steel pressure plate is crimped and fixed with screws. Figure 8 As shown, the role of the white silicone plate in the glove hole is, first, sealing, to prevent external air from entering the inner box during the temperature chamber test, causing condensation and frost on the inner box and the test piece; second, the white silicone plate is cut into a cross, which is convenient for users to take and place the test piece through the glove hole.

[0004] However, the prior art method of providing a glove hole on the door body has the following defects:

[0005] 1. When low-temperature equipment is running at low temperatures, the white silicone plate will harden, age, and become easily damaged. In this case, when the user is using it, it is difficult for the user to extend their arm into the incubator through the white silicone plate. During the process of extending and inserting, the cut part of the white silicone plate will harden and scratch the user's arm, which is not conducive to the safe use of the equipment.

[0006] 2. As the white silicone plate becomes hard and ages and loses its elasticity, the cross cuts cannot overlap, resulting in cold leakage. In addition, the user may scratch the white silicone plate during use, causing damage to the silicone plate, allowing air to pass through the inner box, resulting in severe cold leakage. Severe frost forms around the white silicone plate and the glove holes, and frost and condensation form on the surface of the inner box specimen, affecting the test results.

[0007] 3. When assembling the test hole hardware and the epoxy resin tube, the epoxy resin tube is inserted into the test hole hardware. The test hole hardware has a stamped stainless steel edge with a thickness of 1.5mm. After assembly, there is a boss of about 2 to 3mm, which may cause scratches when the user uses the glove hole.

[0008] 4. The glove hole setting method has a small visible area, which is not conducive to observation. Utility Model Content

[0009] In view of the deficiencies in the prior art, the utility model aims to provide a glove hole small door structure for a high and low temperature box door body.

[0010] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0011] A small door structure with a glove hole on the door body of a high and low temperature box, comprising a door body, a mounting hole being opened in the middle of the door body, a viewing window glass being respectively arranged on the upper and lower sides of the mounting hole, a stainless steel component being installed between the upper and lower viewing window glasses, a glove hole being formed in the stainless steel component, a blocking door being hinged on the door body and located on the side of the mounting hole, a locking mechanism cooperating with the blocking door being arranged in the stainless steel component, a stainless steel pressure plate being arranged on the inner side of the blocking door, and a sealing blocking component being arranged on the stainless steel pressure plate.

[0012] Furthermore, the stainless steel component includes a stainless steel specimen 1 and a stainless steel specimen 2, the stainless steel specimen 1 and the stainless steel specimen 2 are connected together and form a supporting surface internally, the window glass is clamped on the supporting surface, white silicone skin is provided between the window glass and both sides of the supporting surface, and a silicone heating plate 1 is provided inside the stainless steel specimen 2.

[0013] Furthermore, the sealing and blocking assembly includes a second silicone heating plate and an ultra-low temperature sealing strip, the stainless steel pressure plate is a boss-type structure, and the second silicone heating plate and the ultra-low temperature sealing strip are located on the side of the boss-type structure.

[0014] Furthermore, the blocking door is blocked in the mounting hole, the stainless steel pressure plate is blocked in the glove hole, and the ultra-low temperature sealing strip is squeezed together with the inside of the glove hole.

[0015] Furthermore, the door body is movably connected to the opening of the box body through a door body hinge, and a door handle is provided on the side of the door body.

[0016] Furthermore, the left side of the blocking door is movably connected to the door body through a side hinge, the right side of the blocking door is provided with a clamping door handle, and the door body is provided with a clamping seat that cooperates with the clamping door handle.

[0017] Furthermore, the locking mechanism includes an inner cavity opened on the right side of the stainless steel component and two clamping seats fixed on the inner end of the blocking door, the clamping seat is provided with a clamping groove, the inner cavity is provided with two docking ports that penetrate into the stainless steel component, two support plates are fixed inside the inner cavity, a micro motor is fixed between the two support plates, a driving gear is connected to the side output end of the micro motor, two support seats are fixed to the outer surface of the support plate, a rotating shaft is movably connected to the support seat, a guide cylinder is fixed to the middle part of the rotating shaft, a bidirectional spiral groove is provided on the guide cylinder, the end of the rotating shaft penetrates into the outer side of the support plate and is connected and fixed to the driven gear, and the two driven gears are meshed with the driving gear.

[0018] Furthermore, a group of guide rods are fixed between the two support seats, and a sliding seat is slidably connected to the guide rods. A push plate is fixed to one side of the outer surface of the sliding seat, and an end of the push plate passes through the bidirectional spiral groove and is squeezed together with the inner wall of the bidirectional spiral groove. A push rod is fixed to the outer surface of one side of the push plate, and the end of the push rod passes through the other side of the support plate and is connected and fixed to the inclined surface block. The clamping seat is clamped into the inner cavity from the docking interface, and the end of the inclined surface block is clamped inside the clamping groove.

[0019] Furthermore, a guide seat is fixed on the support plate, and the end of the push rod is slidably connected to the guide seat.

[0020] Furthermore, the front and rear sides of the support plate are connected and fixed to the inner wall of the inner cavity.

[0021] Beneficial effects of the utility model:

[0022] The sealing door of the utility model does not leak cold during the low-temperature operation of the equipment, and the user's test pieces do not frost. The product performance is stable and the energy consumption of the equipment is effectively saved. According to the law of conservation of energy, the cold leakage of the inner box needs to be balanced by the power output of the compressor. The white silicone plate used in the existing technical solution will denature under low-temperature conditions and will be damaged by repeated use by the user, resulting in serious cold leakage at the glove hole, affecting the user's test pieces and product testing.

[0023] The sealing door structure of the utility model adopts a boss design as the first seal, which effectively reduces the conduction of cold air, while increasing the sealing and auxiliary heating functions. There is no leakage of cold air when the equipment is running at low temperature, thus ensuring the test performance of the product and effectively saving energy consumption.

[0024] The blocking door of the utility model is safer and more convenient for users to use, and effectively improves the user experience. The design of setting a white silicone plate in the glove hole structure adopted in the existing technical solution will make the white silicone plate harden at low temperature, which is difficult for users to operate and easy to scratch their arms. This solution uses a blocking door, and the user opens the blocking door when using it, and there is no obstruction or hindrance in taking and placing test pieces.

[0025] The blocking door of the utility model increases the operating space for users. In the prior art, an independent round hole is opened in the sheet metal of the temperature chamber door, and users can only take and place the test piece with one hand. Now the structure is designed with a rectangular hole, the operating space is increased, and users can take and place the test piece with both hands.

[0026] Through the design of the sealing and blocking components, the silicone heating plate 2 plays a role in auxiliary heating to balance the conducted cold, while the ultra-low temperature sealing strip blocks the conduction of cold, thus ensuring the various performance indicators of the box.

[0027] Through the design of the sealing and blocking component, when the blocking door is closed, after the card seat on the blocking door is inserted into the inner cavity through the docking interface, the micro motor starts to drive the driving gear to rotate, and the driving gear rotation drives the two driven gears to rotate, and the driven gear rotation drives the guide cylinder to rotate through the rotating shaft, and the guide cylinder rotation squeezes and pushes the push plate through the bidirectional spiral groove. The push plate will drive the sliding seat to move straight along the guide rod under the squeezing and pushing of the bidirectional spiral groove, and the movement of the sliding seat will push the inclined surface block to move through the pushing rod. When the inclined surface block moves straight, the inclined surface end will gradually contact the card slot on the card seat, and then the card seat will be clamped and fixed in the inner cavity, so that the blocking door and the mounting hole are locked together. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be 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 paying creative work.

[0029] Figure 1 This is a schematic diagram of the structure of the glove hole small door structure of the high and low temperature box door body of the utility model Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the connection structure of the window glass and the stainless steel component of the glove hole small door structure of the high and low temperature box door body of the utility model;

[0031] Figure 3 This is a schematic diagram of a blocking door structure of a glove hole small door structure of a high and low temperature box door body of the utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the glove hole small door structure of the high and low temperature box door body of the utility model Figure 2 ;

[0033] Figure 5 This is a schematic diagram of the locking mechanism structure of the glove hole small door structure of a high and low temperature box door body of the utility model Figure 1 ;

[0034] Figure 6 This is a schematic diagram of the locking mechanism structure of the glove hole small door structure of a high and low temperature box door body of the utility model Figure 2 ;

[0035] Figure 7 This is a schematic diagram of the locking mechanism structure of the glove hole small door structure of a high and low temperature box door body of the utility model Figure 3 ;

[0036] Figure 8 It is a schematic diagram of the glove hole structure of the high and low temperature box door body in the prior art.

[0037] In the figure, 1. door body; 2. door body hinge; 3. door handle; 4. window glass; 5. stainless steel component; 6. stainless steel specimen 1; 7. stainless steel specimen 2; 8. white silicone skin; 9. silicone heating plate 1; 10. glove hole; 11. blocking door; 12. stainless steel pressure plate; 13. snap-in groove; 14. silicone heating plate 2; 15. ultra-low temperature sealing strip; 16. side hinge; 17. clamping door handle; 18. clamping seat; 19. support plate; 20. micro motor; 21. driving gear; 22. support seat; 23. rotating shaft; 24. guide cylinder; 25. bidirectional spiral groove; 26. driven gear; 27. guide rod; 28. sliding seat; 29. ​​push plate; 30. push rod; 31. inclined block; 32. snap-in seat. DETAILED DESCRIPTION

[0038] 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 in 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.

[0039] See also Figure 1-Figure 7The utility model provides a technical solution for the glove hole small door structure of a high and low temperature box door body, including a door body 1, the door body 1 is movably connected to the opening of the box body through a door body hinge 2, a door handle 3 is arranged on the side of the door body 1, a mounting hole is opened in the middle of the door body 1, a window glass 4 is respectively arranged on the upper and lower sides of the mounting hole, a stainless steel component 5 is installed between the upper and lower window glasses 4, a glove hole 10 is formed in the stainless steel component 5, a blocking door 11 is hinged on the door body 1 and located on the side of the mounting hole, the left side of the blocking door 11 is movably connected to the door body 1 through a side hinge 16, and a tightening door handle 17 is arranged on the right side of the blocking door 11. A clamping seat 18 matched with the clamping door handle 17 is provided on the body 1, a locking mechanism matched with the blocking door 11 is provided in the stainless steel component 5, a stainless steel pressure plate 12 is provided on the inner side of the blocking door 11, and a sealing blocking component is provided on the stainless steel pressure plate 12; the blocking door 11 of the utility model has no cold leakage during the low-temperature operation of the equipment, and the user's test pieces have no frost, the product performance is stable, and the energy consumption of the equipment is effectively saved. According to the law of conservation of energy, the cold leakage of the inner box needs to be balanced by the power output of the compressor. The white silicone plate used in the prior art solution will denature under low temperature conditions and will be damaged by repeated use by users, resulting in serious cold leakage at the glove holes, affecting the user's test pieces and product testing.

[0040] See also Figure 2 The stainless steel component 5 includes a stainless steel test piece 1 6 and a stainless steel test piece 2 7, which are fixed to the window glass 4 by rivets, and the stainless steel test piece 1 6 and the stainless steel test piece 2 7 are connected together and form a supporting surface inside, and the window glass 4 is stuck on the supporting surface, and a white silicone skin 8 is provided between the window glass 4 and both sides of the supporting surface, and the white silicone skin 8 can avoid hard contact between the sheet metal and the glass, and a silicone heating plate 1 9 is provided inside the stainless steel test piece 2 7 to prevent frost on the stainless steel component.

[0041] See also Figure 3 The sealing and blocking component includes a silicone heating plate 14 and an ultra-low temperature sealing strip 15. The stainless steel pressing plate 12 is a boss-type structure. The silicone heating plate 14 and the ultra-low temperature sealing strip 15 are located on the side of the boss-type structure. The silicone heating plate 14 plays a role in auxiliary heating to balance the conduction cold. The blocking door 11 is blocked in the mounting hole, the stainless steel pressing plate 12 is blocked in the glove hole 10, and the ultra-low temperature sealing strip 15 is squeezed together with the inside of the glove hole 10. The ultra-low temperature sealing strip 15 blocks the cold conduction to ensure various performance indicators of the box.

[0042] See also Figure 4-Figure 7The locking mechanism includes an inner cavity opened on the right side of the stainless steel component 5 and two clamping seats 32 fixed to the inner end of the blocking door 11, and the clamping seat 32 is provided with a clamping groove 33. The inner cavity is provided with two docking ports that penetrate the stainless steel component 5. Two support plates 19 are fixed inside the inner cavity. The front and rear sides of the support plate 19 are connected and fixed to the inner wall of the inner cavity. A micro motor 20 is fixed between the two support plates 19. The side output end of the micro motor 20 is connected to a driving gear 21. Two support seats are fixed to the outer surface of the support plate 19. 22, the support seat 22 is movably connected with a rotating shaft 23, a guide cylinder 24 is fixed in the middle of the rotating shaft 23, a bidirectional spiral groove 25 is provided on the guide cylinder 24, the end of the rotating shaft 23 penetrates to the outside of the support plate 19 and is connected and fixed with a driven gear 26, the two driven gears 26 are meshed with the driving gear 21, and a group of guide rods 27 are fixed between the two support seats 22, a sliding seat 28 is slidably connected to the guide rod 27, a push plate 29 is fixed on one side of the outer surface of the sliding seat 28, and the end of the push plate 29 penetrates to the bidirectional spiral The groove 25 is squeezed together with the inner wall of the bidirectional spiral groove 25, and a push rod 30 is fixed to the outer surface of one side of the push plate 29. The end of the push rod 30 passes through the other side of the support plate 19 and is connected and fixed to the inclined surface block 31. The clamping seat 32 is clamped into the inner cavity from the docking interface, and the end of the inclined surface block 31 is clamped in the inside of the clamping groove 33; through the design of the sealing blocking component, when the blocking door 11 is closed, when the clamping seat 32 on the blocking door 11 is clamped into the inner cavity through the docking interface, the micro motor 20 starts to drive the driving gear 21 to rotate, and the driving gear 21 rotates The two driven gears 26 are driven to rotate. The driven gears 26 rotate through the rotating shaft 23 to drive the guide cylinder 24 to rotate. The guide cylinder 24 rotates through the bidirectional spiral groove 25 to squeeze and push the push plate 29. The push plate 29 will drive the sliding seat 28 to move linearly along the guide rod 27 under the squeezing and pushing of the bidirectional spiral groove 25. The movement of the sliding seat 28 will push the inclined surface block 31 to move through the pushing rod 30. When the inclined surface block 31 moves linearly, the inclined surface end will gradually contact the clamping groove 13 on the clamping seat 32, and then the clamping seat 32 will be clamped and fixed in the inner cavity, so that the blocking door 11 and the mounting hole are locked together.

[0043] See also Figure 5-Figure 7 A guide seat is fixed on the support plate 19, and the end of the push rod 30 is slidably connected to the guide seat; through the world of the guide seat, the stability of the movement of the push rod 30 is improved.

[0044] During use, when the equipment is running at low temperature, the sealing and insulation design of the blocking door 11 effectively blocks cold leakage, and the stainless steel pressure plate 12 on the side of the blocking door 11 adopts a boss structure and penetrates into the glove hole 10, effectively blocking the cold conduction of the inner box and reducing the cold leakage area. The silicone heating plate 1 9 and the silicone heating plate 2 14 installed in the middle of the stainless steel component 5 and on the inner side of the boss can prevent frost and cold conduction. The inside of the blocking door 11 is filled with polyurethane foaming agent, and the ultra-low temperature sealing strip 15 installed on the inner side of the stainless steel pressure plate 12 can effectively block the cold conduction and ensure the various performance indicators of the inner box.

[0045] When in use, the user opens the clamping door handle 17 on the blocking door 11, then wears gloves to operate and take and place the test piece, and closes the blocking door 11 after the operation is completed. In this way, the temperature inside the box will hardly be affected, ensuring the stability of the test piece test;

[0046] When closing the blocking door 11, after the clamping seat 32 on the blocking door 11 is inserted into the inner cavity through the docking interface, the micro motor 20 starts to drive the driving gear 21 to rotate, and the rotation of the driving gear 21 drives the two driven gears 26 to rotate, and the rotation of the driven gear 26 drives the guide cylinder 24 to rotate through the rotating shaft 23, and the rotation of the guide cylinder 24 squeezes and pushes the push plate 29 through the bidirectional spiral groove 25. The push plate 29 will drive the sliding seat 28 to move linearly along the guide rod 27 under the squeezing and pushing of the bidirectional spiral groove 25. The movement of the sliding seat 28 will push the inclined surface block 31 to move through the pushing rod 30. While the inclined surface block 31 moves linearly, the inclined surface end will gradually contact the clamping groove 13 on the clamping seat 32, and then the clamping seat 32 will be clamped and fixed in the inner cavity, so that the blocking door 11 and the mounting hole are locked together.

[0047] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A glove hole small door structure for a high and low temperature box door, characterized in that: The invention comprises a door body (1), wherein a mounting hole is provided in the middle of the door body (1), wherein a viewing window glass (4) is provided on the upper and lower sides of the interior of the mounting hole respectively, wherein a stainless steel component (5) is installed between the upper and lower viewing window glasses (4), wherein a glove hole (10) is formed in the stainless steel component (5), wherein a blocking door (11) is hingedly connected on the door body (1) and located on the side of the mounting hole, wherein a locking mechanism cooperating with the blocking door (11) is provided in the stainless steel component (5), wherein a stainless steel pressure plate (12) is provided on the inner side of the blocking door (11), wherein a sealing blocking component is provided on the stainless steel pressure plate (12).

2. The glove hole small door structure of the high and low temperature box door body according to claim 1 is characterized in that: The stainless steel component (5) comprises a stainless steel test piece 1 (6) and a stainless steel test piece 2 (7), wherein the stainless steel test piece 1 (6) and the stainless steel test piece 2 (7) are connected together and form a support surface inside, the window glass (4) is clamped on the support surface, a white silica gel skin (8) is provided between the window glass (4) and both sides of the support surface, and a silica gel heating plate 1 (9) is provided inside the stainless steel test piece 2 (7).

3. The glove hole small door structure of the high and low temperature box door body according to claim 2 is characterized in that: The sealing blocking component comprises a second silicone heating plate (14) and an ultra-low temperature sealing strip (15); the stainless steel pressing plate (12) is a boss-type structure; the second silicone heating plate (14) and the ultra-low temperature sealing strip (15) are located on the side of the boss-type structure.

4. The glove hole small door structure of the high and low temperature box door body according to claim 3 is characterized in that: The blocking door (11) is blocked in the mounting hole, the stainless steel pressing plate (12) is blocked in the glove hole (10), and the ultra-low temperature sealing strip (15) is squeezed together with the inside of the glove hole (10).

5. The glove hole small door structure of the high and low temperature box door according to claim 4, characterized in that: The door body (1) is movably connected to the opening of the box body via a door body hinge (2), and a door handle (3) is provided on the side of the door body (1).

6. The glove hole small door structure of the high and low temperature box door body according to claim 5, characterized in that: The left side of the blocking door (11) is movably connected to the door body (1) via a side hinge (16); the right side of the blocking door (11) is provided with a clamping door handle (17); and the door body (1) is provided with a clamping seat (18) that matches the clamping door handle (17).

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