A box refrigeration curtain

Abstract

The present invention discloses a box refrigeration curtain, which aims to solve the shortcomings of the prior art in that the space for adjusting the refrigerator is limited and the space inside the refrigerator cannot be adjusted arbitrarily. The present invention solves the above technical problems through the following technical solutions: comprising: a telescopic beam, comprising a sleeve and an inner tube arranged in the sleeve, the inner tube being slidably arranged in the sleeve; a clamping structure is provided between the inner tube and the sleeve; the clamping structure is used to push the inner tube to extend to both sides during installation, so that the two ends of the telescopic beam can abut against the side walls of the refrigerator; a thermal insulation curtain is provided on the telescopic beam. The box refrigeration curtain provided by the present invention cooperates with the telescopic beam and the thermal insulation curtain. Since the telescopic beam cooperates with the sleeve and the inner tube, the structure is very simple, so that the telescopic beam can be installed and disassembled very conveniently, so that it can be installed at any position in the refrigerator, so that the size of any space in the refrigerator can be adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration curtains, and more particularly to a box refrigeration curtain. Background Art

[0002] During the transportation of refrigerated goods, refrigerated boxes are often used due to their excellent insulation and long-lasting heat preservation. Existing refrigeration systems are usually integrated refrigerated boxes. Due to the large internal space, when transporting or storing a small amount of refrigerated goods, the cold air fills the entire space, causing the temperature of the refrigerated goods to rise, resulting in poor quality. Existing technology often reduces the space inside the refrigerated box by installing thermal insulation curtains to improve the insulation effect of the refrigerated goods.

[0003] Chinese Patent Publication No. CN111791791A, Publication Date October 20, 2020. The name of the invention is "Refrigeration Unit, Door Curtain, and Refrigerated Truck for Transportation." This application discloses a refrigeration unit, door curtain, and refrigerated truck for transportation. Although the above application installs a track in the refrigerator so that the curtain body can slide on the track, thereby reducing the refrigerated space and improving the insulation effect of the refrigerated goods. However, the curtain body can only be used in conjunction with the track, so that the curtain body is limited by the track in adjusting the size of the space in the refrigerated truck. When the refrigerator needs to be filled with refrigerated goods, the track and the curtain body occupy the space in the refrigerator, which reduces the transportation capacity of the refrigerator. If the curtain body needs to be removed, it will be very troublesome to remove it, and when it needs to be used again, it will make installation even more troublesome. Summary of the Invention

[0004] The present invention overcomes the following deficiencies of the refrigeration curtain in the prior art: (1) the space for adjusting the interior of the refrigeration box is limited and cannot be adjusted arbitrarily; (2) the refrigeration curtain is complicated to install and difficult to remove. The present invention provides a box refrigeration curtain that is easy to install and remove, and can control the size of the required refrigeration space according to the amount of refrigerated goods to ensure the refrigeration effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a box refrigeration curtain, comprising:

[0006] The telescopic crossbeam includes a sleeve and an inner tube disposed within the sleeve, wherein the inner tube is slidably disposed within the sleeve; a clamping structure is provided between the inner tube and the sleeve; the clamping structure is used to push the inner tube to extend to both sides during installation so that both ends of the telescopic crossbeam can abut against the side walls of the refrigerator;

[0007] Thermal insulation curtains are installed on telescopic beams.

[0008] The present invention provides a box refrigeration curtain, which is realized by the cooperation of a telescopic beam and a thermal insulation curtain. Since the telescopic beam cooperates with a sleeve and an inner tube, the structure is very simple, and the telescopic beam can be installed and disassembled very conveniently, so that it can be installed at any position in the refrigerator, so that the size of any space in the refrigerator can be adjusted. Compared with the existing technology, it does not need to install structures such as rails, and the internal space of the refrigerator can be arbitrarily adjusted, thereby improving the refrigeration effect of the refrigerated goods. It is easy to use and quick to install.

[0009] Preferably, the clamping structure includes a push tooth arranged on the outer side of the inner tube along the length direction of the inner tube, a handle is rotatably provided at the end of the sleeve, and a clamping tooth is provided at the end of the handle to cooperate with the push tooth.

[0010] The latching teeth at the end of the handle cooperate with the pushing teeth on the inner tube, thereby pushing the inner tube to move outward, so that the telescopic beam extends to both ends, so that the telescopic beam can be fixedly arranged in the refrigerator.

[0011] Preferably, foot pads are provided at both ends of the telescopic beam.

[0012] The foot pad plays a buffering role. At the same time, when the inner tube extends outward, it exerts an extrusion effect on the foot pad, so that the telescopic beam is supported on the side wall of the refrigerator by the elastic force of the foot pad, thereby fixing the telescopic beam.

[0013] Preferably, mounting holes are provided at the ends of both ends of the telescopic beam in the horizontal direction, and through holes are provided at the ends of the foot pads that match the mounting holes. Bolts pass through the through holes and the mounting holes, so that the foot pads are rotatably arranged around the bolts.

[0014] The foot pad is rotated so that the foot pad can be perpendicular to the side wall of the refrigerator and can better abut against the side wall of the refrigerator.

[0015] Preferably, a reinforcement sleeve is provided at the end of the sleeve, connecting plates are provided on both sides of the bottom of the reinforcement sleeve, a connecting shaft is provided on the connecting plate on one side, and the latching gear is rotatably provided on the connecting shaft.

[0016] Preferably, a connecting block is provided on the inner side wall of the connecting plate, a limiting shaft is provided on the connecting block, and a bayonet that cooperates with the limiting shaft is provided on the handle.

[0017] When the handle is rotated counterclockwise to the horizontal direction and fits with the sleeve, the bayonet can be just stuck on the limit shaft, preventing the handle from rotating clockwise to cause the inner tube to slide along the sleeve and cause the telescopic beam to fall off the side wall of the refrigerator.

[0018] Preferably, the upper edge of the thermal insulation curtain is adhered to the telescopic beam.

[0019] The use of adhesive makes the installation of thermal insulation curtains more convenient.

[0020] Preferably, a sliding sleeve is provided on the inner side of the end of the sleeve and slides in the vertical direction. The sliding sleeve is provided with a sliding hole, and the inner tube is slidably provided in the sliding hole.

[0021] A spring is provided between the bottom of the sliding sleeve and the inner wall of the sleeve;

[0022] An air bag is provided between the top of the sliding sleeve and the inner wall of the sleeve, and an exhaust valve is provided on the air bag;

[0023] An air cylinder is arranged between the end of the handle and the outer side wall of the sleeve, and the air outlet end of the air cylinder is communicated with the air bag through an air tube.

[0024] The inner tube is retracted outward by the cooperation of the latching teeth and the pushing teeth, thereby extending the telescopic beam to both ends. However, during use, it was found that when the inner tube was retracted into the sleeve, the latching teeth and the pushing teeth often interfered with each other, causing the inner tube to be frequently caught by the latching teeth when retracting into the sleeve, making it very inconvenient to retract the telescopic beam. Therefore, this embodiment is provided. The above structure makes it easier to retract the inner tube and dismantle the telescopic beam.

[0025] Preferably, guide blocks arranged in the vertical direction are provided on the inner side walls of both sides of the sleeve in the horizontal direction, and the sliding sleeve slides along the guide blocks.

[0026] The guide block serves to limit the sliding sleeve, so that the sliding sleeve can slide along the guide block.

[0027] Preferably, the piston rod of the gas cylinder is rotatably connected to the handle, and one end of the gas cylinder away from the piston rod is rotatably connected to the outer side wall of the sleeve.

[0028] The air cylinder is arranged between the handle and the sleeve, so that the air cylinder can inflate the air bag when the handle is rotated.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) Compared with the existing technology, it eliminates the need for rails and other structures, and is easy to assemble and disassemble. The size of the required refrigeration space can be controlled according to the amount of refrigerated goods to ensure the refrigeration effect;

[0031] (2) It is more convenient to recycle the inner tube and dismantle the telescopic beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the telescopic beam of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the telescopic beam of the present invention from another angle;

[0035] Figure 4 is a cross-sectional view of the telescopic beam of the present invention;

[0036] Figure 5 is a schematic structural diagram of a telescopic beam in a second embodiment of the present invention;

[0037] Figure 6 is a cross-sectional view of a telescopic beam in a second embodiment of the present invention;

[0038] In the figure: 1, telescopic beam, 11, mounting hole;

[0039] 2. Sleeve, 21. Guide block, 22. Abutment groove;

[0040] 3. Inner tube, 31. Push teeth;

[0041] 4. handle, 41. latch teeth, 42. bayonet;

[0042] 5. Foot pads, 51. perforated;

[0043] 6. Reinforcement sleeve, 61. Connecting plate, 62. Rotating shaft, 63. Connecting block, 64. Limiting shaft;

[0044] 7. Thermal insulation curtain, 71. Transparent window;

[0045] 81. Sliding sleeve, 811. Sliding hole, 82. Spring, 83. Air bag, 831. Exhaust valve, 84. Air cylinder, 841. Piston rod. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0047] Example 1: Reference Figures 1 to 4 As shown, a box refrigeration curtain mainly includes a telescopic beam 1 and a heat-insulating curtain 7.

[0048] Foot pads 5 are provided at both ends of the telescopic beam 1, and the foot pads 5 are made of elastic material; the telescopic beam 1 mainly includes a sleeve 2 and an inner tube 3 arranged in the sleeve 2. In this embodiment, the inner tube 3 is slidably arranged at one end of the sleeve 2, and the inner tube 3 is slidably arranged in the sleeve 2; a clamping structure is provided between the inner tube 3 and the sleeve 2, and the clamping structure enables the end of the inner tube 3 to be supported on the side wall of the refrigerator during installation.

[0049] The thermal insulation curtain 7 is mounted on the telescopic beam 1. In the present invention, the thermal insulation curtain 7 can be connected to the telescopic beam 1 by rivets, sewn loops, or other methods. In this embodiment, the upper edge of the thermal insulation curtain 7 is adhered to the telescopic beam 1 by gluing. The adhesive can be double-sided tape, Velcro, or the like. This makes the installation of the thermal insulation curtain 7 more convenient. In addition, the thermal insulation curtain 7 is provided with a transparent window 71 for observing the condition of the refrigerated items inside the refrigerator.

[0050] The specific structure of the clamping structure is as follows: the clamping structure includes a push tooth 31 provided on the outside of the inner tube 3 and arranged along the length direction of the inner tube 3. The cross section of the push tooth 31 is a barbed hook shape. The end of the sleeve 2 is rotatably provided with a handle 4. The end of the handle 4 is provided with a clamping tooth 41 that cooperates with the push tooth 31. When the handle 4 is rotated, the clamping tooth 41 on the handle 4 cooperates with the push tooth 31 to push the inner tube 3 outward.

[0051] A reinforcement sleeve 6 is fixedly provided at the end of the sleeve 2 , and connecting plates 61 are provided on both sides of the bottom of the reinforcement sleeve 6 . A connecting shaft 62 is provided on the connecting plate 61 on one side, and the latching teeth 41 on the handle 4 are rotatably provided on the connecting shaft 62 .

[0052] Mounting holes 11 are horizontally defined at both ends of the telescopic crossbeam 1. The ends of the foot pads 5 are provided with through-holes 51 that mate with the mounting holes 11. Bolts pass through the through-holes 51 and the mounting holes 11, allowing the foot pads 5 to pivot about the bolts. In this embodiment, one foot pad 5 is positioned at the end of the sleeve 2 away from the inner tube 3, and the other foot pad 5 is positioned at the end of the inner tube 3 away from the sleeve 2.

[0053] In addition, refer to Figure 3 As shown, a connecting block 63 is provided on the inner side wall of the connecting plate 61, a limiting shaft 64 is provided on the connecting block 63, and a bayonet 42 that cooperates with the limiting shaft 64 is provided on the handle 4. Figure 4 As shown, when the handle 4 is rotated counterclockwise to the horizontal direction and fits with the sleeve 2, the bayonet 42 can be just stuck on the limit shaft 64, preventing the handle 4 from rotating clockwise so that the inner tube 4 slides along the sleeve 2 and the telescopic beam 1 falls off from the side wall of the refrigerator.

[0054] When the present invention is used, Figure 4As shown, the telescopic beam 1 is first fixedly supported on the side wall of the refrigerator. Specifically, the foot pad 5 at one end of the sleeve 2 is first abutted against the side wall of one side of the refrigerator. Then, the position of the inner tube 3 is adjusted according to the distance between the side walls on both sides, so that the foot pad 5 at the end of the inner tube 3 abuts against the side wall on the other side. Then, the handle 4 is rotated counterclockwise, and the locking teeth 41 at the end of the handle 4 cooperate with the pushing teeth 31 on the inner tube 3, thereby pushing the inner tube 3 outward, so that the telescopic beam 1 is extended to both ends. When the handle 4 is rotated to the horizontal position When the handle 4 is in the upper position, the bayonet 42 can be precisely locked onto the limit shaft 64, thus securing the handle 4. Since the foot pads 5 at both ends of the telescopic beam 1 are made of elastic material, in this embodiment, rubber, the inner tube 2 squeezes the foot pads 5 when it extends outward, so that the elastic force of the foot pads 5 supports the telescopic beam 1 against the side wall of the refrigerator, thereby securing the telescopic beam 1. Subsequently, the thermal insulation curtain 7 is adhered to the telescopic beam 1, dividing the interior of the refrigerator into small storage spaces and improving the refrigeration and heat preservation of the refrigerated goods. To remove the telescopic beam 1, simply remove the handle 4 from the bayonet 42 and rotate it clockwise, causing the inner tube 3 to retract into the sleeve 2, shortening the overall length of the telescopic beam 1, and then removing the telescopic beam 1.

[0055] The present invention combines the thermal insulation curtain 7 with the telescopic beam 1, making it very convenient to install the telescopic beam 1, and then making it very convenient to install the box refrigeration curtain. Compared with the existing technology, there is no need to install structures such as rails, and the internal space of the refrigerator can be arbitrarily adjusted, thereby improving the refrigeration effect of the refrigerated goods. It is easy to use and quick to install.

[0056] Example 2: Reference Figure 1 、 Figure 5 and Figure 6 As shown, this embodiment is similar in structure to embodiment 1, except that:

[0057] Guide blocks 21 arranged in the vertical direction are provided on the inner side walls on both sides of the end portion of the sleeve 2 in the horizontal direction. Two guide blocks 21 are provided on the side wall of one side of the sleeve 2. A sliding sleeve 81 that slides in the vertical direction is provided on the inner side of the end portion of the sleeve 2. The sliding sleeve 81 is slidably provided between the two guide blocks 21. The guide blocks 21 limit the sliding sleeve 81. A sliding hole 811 is provided on the sliding sleeve 81. The sliding hole 811 is provided along the length direction of the sleeve 2. The inner tube 3 is slidably provided in the sliding hole 811.

[0058] A spring 82 is provided between the bottom of the sliding sleeve 81 and the inner wall of the sleeve 2 ; the spring 82 continuously pushes the sliding sleeve 81 to move upward, so that the sliding sleeve 81 tends to move away from the latching teeth 41 .

[0059] An airbag 83 is provided between the top of the sliding sleeve 81 and the inner wall of the sleeve 2. An exhaust valve 831 is provided on the airbag 83. The exhaust valve 831 belongs to the existing technology. Pressing the exhaust valve 831 can discharge the gas in the airbag 83 from the exhaust valve 831.

[0060] An air cylinder 84 is provided between the end of the handle 4 and the outer wall of the sleeve 2. The air cylinder 84 is conventionally used, and the air outlet of the air cylinder 84 is connected to the air bag 83 via an air tube. The piston rod 841 of the air cylinder 84 is rotatably connected to the handle 4, and the end of the air cylinder 84 away from the piston rod 841 is rotatably connected to the outer wall of the sleeve 2.

[0061] In Example 1, the inner tube 3 is retracted outward by the cooperation of the latch teeth 41 and the push teeth 31, thereby extending the telescopic beam 1 to both ends. However, during use, it is found that when the inner tube 3 is retracted into the sleeve 2, interference often occurs between the latch teeth 41 and the push teeth 31, so that the inner tube 3 is often stuck out by the latch teeth 41 when retracting into the sleeve 2, making it very inconvenient to retract the telescopic beam 1. Therefore, this embodiment is provided.

[0062] The working principle of this embodiment is as follows: Figure 6 As shown, when not in use, the sliding sleeve 81 moves upward by the force of the spring 82, and the sliding sleeve 81 drives the inner tube 3 to move upward, so that the latching teeth 41 and the pushing teeth 31 are away from each other, so that the inner tube 3 will not be affected by the interference between the latching teeth 41 and the pushing teeth 31 when sliding in the sleeve 2; when it is necessary to fix the telescopic beam 1 on the side wall of the refrigerator, the steps are similar to those of Example 1, except that when the handle 4 is turned, the handle 4 drives the piston rod 841 to move, so that the air cylinder 84 is inflated into the airbag 83, and the airbag 83 is inflated and expands, pushing the sliding sleeve 81 to overcome the force of the spring 82 and move downward, and the sliding sleeve 81 simultaneously drives the inner tube 3 to move downward, so that the pushing teeth 31 on the inner tube 3 can contact with the latching teeth 41, and then the rotating handle 4 can push the inner tube 2 to move outward, so that the telescopic beam 1 is supported on the side wall of the refrigerator. When the telescopic crossbeam 1 needs to be removed from the side wall of the refrigerator, the exhaust valve 831 is pressed to discharge the gas in the airbag 83, reducing the volume of the airbag 83. The sliding sleeve 81 is again urged upward by the spring 82, causing the latching teeth 41 to separate from the pushing teeth 31. This removes the retaining effect of the latching teeth 31 on the inner tube 83, allowing the inner tube 83 to extend and retract within the sleeve 1. Therefore, the above structure makes it easier to retrieve the inner tube 2 and remove the telescopic crossbeam 1.

[0063] It should be noted that an abutment groove 22 is provided at the position corresponding to the sleeve 2 and the spring 82. When the airbag 83 pushes the sliding sleeve 81 to move downward, the spring 82 can be completely contracted in the abutment groove 22, and the notch area of ​​the abutment groove 22 is smaller than the area of ​​the sliding sleeve 81. This means that when the airbag 83 expands to a certain size and the sliding sleeve 81 abuts against the inner wall of the sleeve 2, the sliding sleeve 81 will not move downward again even if the airbag 83 expands again. In addition, since the refrigerator is usually transported by car, the provision of the airbag can play a vibration reduction role between the sleeve 2 and the inner tube 3 when the car is subjected to sudden bumps.

[0064] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A refrigerated box curtain, characterized in that: include: The telescopic crossbeam includes a sleeve and an inner tube disposed within the sleeve, wherein the inner tube is slidably disposed within the sleeve; a clamping structure is provided between the inner tube and the sleeve; the clamping structure is used to push the inner tube to extend to both sides during installation so that both ends of the telescopic crossbeam can abut against the side walls of the refrigerator; Thermal insulation curtain, set on the telescopic beam; The clamping structure includes a push tooth provided on the outer side of the inner tube along the length direction of the inner tube, a handle is provided at the end of the sleeve for rotation, and a clamping tooth is provided at the end of the handle for matching with the push tooth; A sliding sleeve is provided on the inner side of the end of the sleeve and slides in the vertical direction. The sliding sleeve is provided with a sliding hole, and the inner tube is slidably arranged in the sliding hole. A spring is provided between the bottom of the sliding sleeve and the inner wall of the sleeve; An air bag is provided between the top of the sliding sleeve and the inner wall of the sleeve, and an exhaust valve is provided on the air bag; An air cylinder is arranged between the handle and the outer side wall of the sleeve, and an air outlet end of the air cylinder is communicated with the air bag through an air tube.

2. The box refrigeration curtain according to claim 1, characterized in that: The cross section of the push tooth is in the shape of a barb.

3. The box refrigeration curtain according to claim 1, characterized in that: Foot pads are provided at both ends of the telescopic beam.

4. The box refrigeration curtain according to claim 3, characterized in that: The ends of both ends of the telescopic beam are provided with mounting holes in the horizontal direction, the ends of the foot pads are provided with through holes matching the mounting holes, and bolts pass through the through holes and the mounting holes, so that the foot pads are rotatably arranged around the bolts.

5. The box refrigeration curtain according to claim 2, characterized in that: A reinforcement sleeve is provided at the end of the sleeve, connecting plates are provided on both sides of the bottom of the reinforcement sleeve, a connecting shaft is provided on the connecting plate on one side, and the latching gear is rotatably provided on the connecting shaft.

6. The box refrigeration curtain according to claim 5, characterized in that: The inner side wall of the connecting plate is provided with a connecting block, a limiting shaft is provided on the connecting block, and a bayonet matched with the limiting shaft is provided on the handle.

7. The box refrigeration curtain according to any one of claims 1 to 6, characterized in that: The upper edge of the thermal insulation curtain is glued to the telescopic beam.

8. The box refrigeration curtain according to claim 1, characterized in that: Guide blocks arranged in the vertical direction are arranged on the inner side walls of both sides of the sleeve in the horizontal direction, and the sliding sleeve slides along the guide blocks.

9. The box refrigeration curtain according to claim 1, characterized in that: The piston rod of the gas cylinder is rotatably connected to the handle, and one end of the gas cylinder away from the piston rod is rotatably connected to the outer side wall of the sleeve.

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