Movable medical record storage device easy to search

Abstract

The invention relates to the technical field of medical record storage devices, and particularly discloses an easy-to-find movable medical record storage device which comprises a bottom plate and a limiting mechanism, the bottom end of the bottom plate is embedded with the ground, two groups of parallel sliding rails are arranged at the top end of the bottom plate, the top end of the bottom plate is connected with a moving assembly, and the moving assembly can drive a box body to horizontally slide. The limiting mechanism is arranged on the back face of the box body, the display assembly is arranged on the side edge of the adjusting assembly, an internal structure of the display assembly is driven to rotate through rotation of the adjusting assembly, label paper is arranged on the surface of the display assembly, medical records on the upper layer in the box body can slide to the lower layer through the adjusting assembly, and a balance weight of the whole equipment moves downwards; a locking function can be realized on the changed structure by utilizing a limiting mechanism, so that the whole equipment is more stable in a moving process, and meanwhile, the display assembly can enable a label to move along with the movement of a flat plate by virtue of a transmission effect of an adjusting assembly, so that subsequent personnel can conveniently find medical records.

Description

Technical Field

[0001] The present invention relates to the technical field of medical record storage devices, and in particular to a portable medical record storage device that is easy to search. Background Art

[0002] The storage device of medical records includes medical record storage compact cabinets. The compact cabinets are generally open structures, which are composed of multiple boxes arranged side by side. The boxes are provided with sealing strips. They are a kind of compact file equipment. The bottom of the cabinet is equipped with axle wheels. The compact cabinet can move in a straight line along the small guide rails laid on the ground. Multiple boxes can be brought together or separated as needed. The compact cabinets are divided into manual and electric types. The manual type is divided into hand-cranked type and hand-push type. The hand-push type is divided into track type and cantilever beam type. The movement direction of the compact cabinet is divided into horizontal and vertical.

[0003] During the use of hand-cranked compact cabinets, the transmission effect between the chain and the handle is mainly used to realize the transmission of power. However, when the weight of the cabinet is unknown, the continuous rotation force will increase the movement speed of the cabinet. However, the counterweight inside the cabinet has different counterweight ratios in fixed positions, and the support of the mixing wheel will also affect its movement state, making its movement unstable. At the same time, when medical records of different years are taken out of the compact cabinet, the medical records at the bottom end will cause the upper gravity to be unbalanced after being taken out of the compact cabinet, causing the center of gravity to move upward. During the movement, the shaking amplitude of the upper end will increase, and the medical records at the upper end will become loose. For this reason, we propose a movable medical record storage device that is easy to find. Summary of the invention

[0004] The object of the present invention is to provide a removable medical record storage device that is easy to search, so as to solve the problem of loose medical records at the upper end mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable medical record storage device that is easy to search, comprising a bottom plate, the bottom end of the bottom plate is mutually embedded with the ground, the top of the bottom plate is provided with two sets of parallel slide rails, the top of the bottom plate is connected with a moving component, the moving component can drive the box to slide horizontally, the top of the bottom plate is provided with a box, the side of the box is provided with an empty slot, the empty slot is located on the inner side of the box, and the opening is located on the front side of the box, and the inside of the empty slot can be filled with medical records: it also includes an adjustment component, the adjustment component is arranged on the side of the box, the adjustment component can support the medical records, and the adjustment component can adjust the counterweight inside the box; The limiting mechanism is arranged on the back of the box body, and the limiting mechanism cooperates with the adjusting component to fix the structure of the limiting mechanism; The display component is arranged on the side of the adjustment component. The internal structure of the display component is driven to rotate by the rotation of the adjustment component. The surface of the display component is equipped with label paper.

[0006] Among them, the adjustment component includes a counterweight component, the outer edge of the counterweight component is connected to the inner wall of the box, the side of the counterweight component is connected to a flat plate, the side of the box is connected to a locking mechanism, the side of the box is connected to a driving mechanism, and the side of the driving mechanism is connected to a transmission mechanism.

[0007] Among them, the counterweight assembly includes a movable shaft, the inner wall of the box is rotatably connected to the outer edge of the movable shaft, one end of the movable shaft is fixedly connected to a transmission wheel 1, the outer edge of the transmission wheel 1 is rotatably connected to a chain 1, the side of the movable shaft is fixedly connected to a transmission wheel 2, the other end of the movable shaft is fixedly connected to a transmission wheel 3, and the outer edge of the transmission wheel 3 is rotatably connected to a gear ring.

[0008] Among them, the locking mechanism includes a fixed seat, the side of the fixed seat is fixedly connected to the side of the box, the inner wall of the fixed seat is fixedly connected to one end of the return spring, the other end of the return spring is fixedly connected to one end of the sliding rod, the other end of the sliding rod is fixedly connected to the side of the movable plate, and locking teeth are provided on both sides of the movable plate.

[0009] Among them, the driving mechanism includes a sleeve shaft, the side of the sleeve shaft is rotatably connected to the side of the box, the inner wall of the sleeve shaft is fixedly connected to one end of the telescopic spring, the other end of the telescopic spring is slidably connected to the side of the turntable, a latch is provided on the back of the turntable, a gear 1 is fixedly connected to the front of the turntable, and a handle is fixedly connected to the front of the gear 1.

[0010] Among them, the transmission mechanism includes a transmission chain 1, the inner wall of the transmission chain 1 is rotatably connected to the side of the sleeve shaft, one end of the transmission chain 1 is rotatably connected to the side of gear 2, the side of gear 2 is rotatably connected to the transmission chain 2, and one end of the transmission chain 2 is rotatably connected to the roller.

[0011] Among them, the limiting mechanism includes an insertion rod, the outer edge of the insertion rod is slidably connected to the inner wall of the box, one end of the insertion rod passes through the inside of the insertion ring, the outer edge of the insertion ring is rotatably connected to a rack, and the side of the rack is connected to a supporting mechanism.

[0012] Among them, the supporting mechanism includes a fixed seat, the side of the rack is fixedly connected to one end of the fixed seat, the outer edge of the fixed seat is fixedly connected to one end of the torsion spring, the other end of the torsion spring is fixedly connected to the inner wall of the support plate, and the side of the support plate is fixedly connected with a baffle.

[0013] The display assembly includes a crawler, the inner wall of the crawler is rotatably connected to the side of the box through a bracket, the outer edge of the crawler is fixedly connected with a toothed strip, and the side of the crawler is fixedly connected with a label holder.

[0014] The moving assembly comprises a connecting frame, the top of which is fixedly connected to the bottom of the box body, the inner wall of the connecting frame is rotatably connected to a rotating shaft, and the outer edge of the rotating shaft is fixedly connected to a roller.

[0015] The present invention has at least the following beneficial effects: The internal structure of the equipment makes it easy for personnel to quickly change the counterweight effect inside the box. Compared with the existing technology, when taking out medical records of different years, the medical records at the bottom end of the compact cabinet will cause an imbalance in the gravity of the upper layer, causing the center of gravity to move upward. During the movement, the upper end will cause an increase in the amplitude of shaking, which will cause the upper medical records to become loose. When the lower flat plate medical records are emptied, the medical records on the upper layer of the box can be made to slide to the lower layer through the adjustment component, so that the counterweight of the entire device moves downward, and the limit mechanism can be used to lock the changed structure, so that the overall equipment is more stable during movement and prevents the upper medical records from shaking and loosening. At the same time, the display component can use the transmission effect of the adjustment component to make the label move with the movement of the flat plate, so that the corresponding position of the label is changed synchronously while the adjustment component changes the internal structure, which is convenient for subsequent personnel to find medical records. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the box body of the present invention; Figure 3 It is a schematic diagram showing the structure of components of the present invention; Figure 4 This is a schematic diagram of the structure of the regulating component of the present invention; Figure 5 It is a schematic diagram of the transmission mechanism structure of the present invention; Figure 6 This is a schematic diagram of the structure of the counterweight assembly of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the locking mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the driving mechanism of the present invention; Fig. 9 This is a schematic diagram of the structure of the mobile assembly of the present invention; Fig.10 It is a schematic diagram of the structure of the limiting mechanism of the present invention; Fig.11 It is a schematic diagram of the supporting mechanism structure of the present invention.

[0017] In the figure: 1, bottom plate; 2, moving assembly; 21, connecting frame; 22, rotating shaft; 23, roller; 3, box; 4, adjusting assembly; 41, counterweight assembly; 411, movable shaft; 412, transmission wheel 1; 413, chain 1; 414, transmission wheel 2; 415, transmission wheel 3; 416, gear ring; 417, supporting wheel; 42, flat plate; 43, locking mechanism; 431, fixed seat; 432, return spring; 433, slide rod; 434, moving plate; 435, latching teeth; 44, driving mechanism; 441. sleeve shaft; 442. telescopic spring; 443. latch; 444. turntable; 445. gear one; 446. handle; 45. transmission mechanism; 451. transmission chain one; 452. gear two; 453. transmission chain two; 454. roller; 5. limit mechanism; 51. plug rod; 52. plug ring; 53. rack; 54. support mechanism; 541. fixed seat; 542. torsion spring; 543. support plate; 544. baffle; 6. display assembly; 61. track; 62. tooth bar; 63. label holder. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0019] See also Figure 1-11 The present invention provides a technical solution: a mobile medical record storage device that is easy to find, including a bottom plate 1, the bottom end of the bottom plate 1 is interlocked with the ground, the top of the bottom plate 1 is provided with two sets of parallel slide rails, the top of the bottom plate 1 is connected with a moving component 2, the moving component 2 can drive a box 3 to slide horizontally, the top of the bottom plate 1 is provided with a box 3, the side of the box 3 is provided with an empty slot, the empty slot is located on the inner side of the box 3, and the opening is located on the front of the box 3, and the inside of the empty slot can be filled with medical records: it also includes an adjustment component 4, the adjustment component 4 is arranged on the side of the box 3, the adjustment component 4 can support the medical records, and the adjustment component 4 can adjust the counterweight inside the box 3; The limiting mechanism 5 is arranged on the back of the box body 3. The limiting mechanism 5 cooperates with the adjusting component 4 to fix the structure of the limiting mechanism 5; The display component 6 is arranged on the side of the adjustment component 4. The internal structure of the display component 6 is driven to rotate by the rotation of the adjustment component 4. The surface of the display component 6 is equipped with label paper.

[0020] The adjustment component 4 includes a counterweight component 41, the outer edge of the counterweight component 41 is connected to the inner wall of the box body 3, the side of the counterweight component 41 is connected to a flat plate 42, the side of the box body 3 is connected to a locking mechanism 43, the side of the box body 3 is connected to a driving mechanism 44, and the side of the driving mechanism 44 is connected to a transmission mechanism 45. Through the counterweight component 41, the flat plate 42 can be pulled outward by a person to achieve a flipping effect, and the flat plate 42 is stuck with the side of the counterweight component 41. The person can take the bottom flat plate 42 out of the side of the counterweight component 41, and the internal structure of the counterweight component 41 can be locked by the locking mechanism 43. The driving mechanism 44 can realize the driving effect of driving the moving component 2 and the position change of the flat plate 42.

[0021] The counterweight assembly 41 includes a movable shaft 411, the inner wall of the box body 3 is rotatably connected to the outer edge of the movable shaft 411, one end of the movable shaft 411 is fixedly connected to a transmission wheel 1 412, the outer edge of the transmission wheel 1 412 is rotatably connected to a chain 1 413, the side of the movable shaft 411 is fixedly connected to a transmission wheel 2 414, the other end of the movable shaft 411 is fixedly connected to a transmission wheel 3 415, the outer edge of the transmission wheel 3 415 is rotatably connected to a gear ring 416, the plate 42 and the side of the chain 1 413 are engaged with each other in the original state, when it is necessary to move the plate 42 loaded with medical records at the upper end to the lower end, the personnel first move the empty plate 414 at the lower end to the lower end. 2 is pulled out, and the staff inside the driving mechanism 44 pulls the handle 446 outward, and makes the side of the gear 1 445 and the inner wall teeth of the gear ring 416 fit together. After the staff rotates the gear 1 445 and the handle 446, the gear ring 416 can drive the transmission wheel 3 415 and the transmission wheel 1 412 to rotate together, and the transmission wheel 1 412 and the side of the chain 1 413 are fit together, and the two are meshed with each other through the teeth, so as to drive the chain 1 413 to turn over, and then drive the flat plate 42 on the side of the chain 1 413 to move downward, so as to achieve the function of adjusting the overall center of gravity of the equipment to move downward and maintain the stability of the movement of the device.

[0022] The locking mechanism 43 includes a fixed seat 431, the side of the fixed seat 431 is fixedly connected to the side of the box body 3, the inner wall of the fixed seat 431 is fixedly connected to one end of a return spring 432, the other end of the return spring 432 is fixedly connected to one end of a slide rod 433, the other end of the slide rod 433 is fixedly connected to the side of a moving plate 434, and the two sides of the moving plate 434 are provided with latching teeth 435. In the original state, the pulling force of the return spring 432 causes the slide rod 433 to pull the latching teeth on both sides of the moving plate 434. Tooth 435 engages with the side teeth of gear ring 416, thereby locking gear ring 416. When gear 1 445 moves outward, it pushes the side of movable plate 434 away from gear ring 416, and puts reset spring 432 in a stretched state, thereby making gear ring 416 movable. When gear ring 416 contacts gear 1 445, transmission can be achieved, and the power source for the movement of movable plate 434 relies on the outward movement drive of gear 1 445 contacted by the side of movable plate 434.

[0023] The driving mechanism 44 includes a sleeve shaft 441, the side of the sleeve shaft 441 is rotatably connected to the side of the box body 3, the inner wall of the sleeve shaft 441 is fixedly connected to one end of a telescopic spring 442, the other end of the telescopic spring 442 is slidably connected to the side of a turntable 444, a latch 443 is provided on the back of the turntable 444, a gear 1 445 is fixedly connected to the front of the turntable 444, a handle 446 is fixedly connected to the front of the gear 1 445, the telescopic spring 442 can make the turntable 444 embedded in the sleeve shaft 441 under the original elastic force, the gear 1 445 does not contact the gear ring 416, and personnel need When moving the box 3, the personnel only needs to turn the handle 446, and make the handle 446 drive the turntable 444 and the sleeve shaft 441 to rotate together, so that the transmission mechanism 45 can be used to rotate the shaft 22 and drive the box 3 to move. When it is necessary to adjust the center of gravity of the entire device, the personnel pulls the handle 446 outward, and makes the gear 1 445 and the gear ring 416 contact each other. At the same time, the turntable 444 is separated from the sleeve shaft 441, so that the rotation of the handle 446 does not drive the sleeve shaft 441, and can only drive the gear ring 416 to rotate, thereby driving the movement of the counterweight assembly 41 and the downward movement of the plate 42.

[0024] The transmission mechanism 45 includes a transmission chain 451, the inner wall of which is rotatably connected to the side of the sleeve shaft 441, one end of which is rotatably connected to the side of the gear 2 452, the side of the gear 2 452 is rotatably connected to the transmission chain 2 453, and one end of the transmission chain 2 453 is rotatably connected to the roller 454. When the sleeve shaft 441 rotates, the transmission chain 451 and the gear 2 452 are driven to rotate, and then the connection between the gear 2 452, the transmission chain 2 453 and the roller 454 is utilized to rotate the roller 454, and then the roller 454 is utilized to drive the rotating shaft 22 and the roller 23 to rotate, thereby driving the device to move as a whole. Example

[0025] The limiting mechanism 5 includes an insert rod 51, an outer edge of the insert rod 51 is slidably connected to the inner wall of the box body 3, one end of the insert rod 51 passes through the interior of the insert ring 52, the outer edge of the insert ring 52 is rotatably connected to the rack 53, the side of the rack 53 is connected to the support mechanism 54, the insert rod 51, and the insert ring 52 can be locked by passing the insert rod 51 through the box body 3 and the insert ring 52, and the insert ring 52 is separated from the insert rod 51. The person can change the position of the flat plate 42 by rotating the adjustment component 4, and at the same time, the back of the flat plate 42 is supported by the support plate 543 inside the support mechanism 54.

[0026] The supporting mechanism 54 includes a fixed seat 541, a side of the rack 53 is fixedly connected to one end of the fixed seat 541, an outer edge of the fixed seat 541 is fixedly connected to one end of a torsion spring 542, the other end of the torsion spring 542 is fixedly connected to the inner wall of the supporting plate 543, and a baffle 544 is fixedly connected to the side of the supporting plate 543. After the fixed seat 541 rotates to the corresponding position with the flat plate 42, the personnel then flips the baffle 544 so that the supporting plate 543 and the rack 53 reach a vertical state, and one end of the baffle 544 and the side of the rack 53 are pressed against each other, and the side of the supporting plate 543 is used to support the rear end bottom of the flat plate 42. The setting of the torsion spring 542 can make the supporting plate 543 parallel to the surface of the rack 53 when it does not contact the flat plate 42, thereby reducing space usage.

[0027] The display assembly 6 includes a track 61, the inner wall of which is rotatably connected to the side of the box body 3 through a bracket, the outer edge of the track 61 is fixedly connected to a toothed strip 62, and the side of the track 61 is fixedly connected to a label holder 63. When the transmission wheel 2 414 rotates, it will engage and drive the toothed strip 62 on the side of the track 61, and make the number of rotations of the track 61 equal to the number of rotations of the chain 1 413, so that the label clamped by the label holder 63 on the side of the track 61 can correspond to the flat plate 42, thereby changing the position of the label holder 63 accordingly in the process of changing the position of the flat plate 42, so that subsequent personnel can find the corresponding medical records conveniently.

[0028] The moving component 2 includes a connecting frame 21, the top of the connecting frame 21 is fixedly connected to the bottom end of the box body 3, the inner wall of the connecting frame 21 is rotatably connected to a rotating shaft 22, and the outer edge of the rotating shaft 22 is fixedly connected to a roller 23. The rotating shaft 22 can be driven by the roller 454 to mechanically rotate. The connecting frame 21 can support the rotating shaft 22 for the box body 3. At the same time, the rotation of the rotating shaft 22 can drive the roller 23 to move on the slide rail on the surface of the bottom plate 1, thereby driving the box body 3 to move as a whole.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable medical record storage device that is easy to search, characterized in that: The device comprises a bottom plate (1), a moving component (2), a box body (3), a limiting mechanism (5) and a display component (6); the moving component (2) is arranged between the box body (3) and the bottom plate (1); an adjusting component (4) is arranged on the side of the box body (3); a limiting mechanism (5) is arranged on the back of the box body (3); and a display component (6) is arranged on the side of the adjusting component (4). The bottom end of the bottom plate (1) is interlocked with the ground, the top surface of the bottom plate (1) is provided with two sets of parallel slide rails, and the top surface of the bottom plate (1) is connected to a moving component (2); The box body (3) has a side edge with an empty slot, the empty slot is located on the inner side of the box body (3), and the opening is located on the front side of the box body (3); The adjustment component (4) is arranged on the side of the box body (3), and the adjustment component (4) can adjust the counterweight inside the box body (3); A limiting mechanism (5), wherein the limiting mechanism (5) is arranged on the back side of the box body (3), and the limiting mechanism (5) is used in conjunction with the adjustment component (4) to fix the structure of the limiting mechanism (5); A display component (6) is arranged on the side of the adjustment component (4), and the internal structure of the display component (6) is driven to rotate by the rotation of the adjustment component (4), and the surface of the display component (6) is provided with label paper.

2. The portable medical record storage device that is easy to search according to claim 1, characterized in that: The adjustment assembly (4) comprises a counterweight assembly (41), the outer edge of the counterweight assembly (41) is connected to the inner wall of the box body (3), the side of the counterweight assembly (41) is connected to a flat plate (42), the side of the box body (3) is connected to a locking mechanism (43), the side of the box body (3) is connected to a driving mechanism (44), and the side of the driving mechanism (44) is connected to a transmission mechanism (45).

3. The portable medical record storage device that is easy to search according to claim 2, characterized in that: The counterweight assembly (41) comprises a movable shaft (411), the inner wall of the box body (3) is rotatably connected to the outer edge of the movable shaft (411), one end of the movable shaft (411) is fixedly connected to a transmission wheel 1 (412), the outer edge of the transmission wheel 1 (412) is rotatably connected to a chain 1 (413), the side of the movable shaft (411) is fixedly connected to a transmission wheel 2 (414), the other end of the movable shaft (411) is fixedly connected to a transmission wheel 3 (415), the outer edge of the transmission wheel 3 (415) is rotatably connected to a gear ring (416), and the side of the gear ring (416) is rotatably connected to the outer edge of a support wheel (417).

4. The portable medical record storage device that is easy to search according to claim 2, characterized in that: The locking mechanism (43) comprises a fixing seat (431), the side of the fixing seat (431) is fixedly connected to the side of the box body (3), the inner wall of the fixing seat (431) is fixedly connected to one end of a return spring (432), the other end of the return spring (432) is fixedly connected to one end of a sliding rod (433), the other end of the sliding rod (433) is fixedly connected to the side of a moving plate (434), and latch teeth (435) are provided on both sides of the moving plate (434).

5. The portable medical record storage device that is easy to search according to claim 2, characterized in that: The driving mechanism (44) comprises a sleeve shaft (441), the side of the sleeve shaft (441) being rotatably connected to the side of the box body (3), the inner wall of the sleeve shaft (441) being fixedly connected to one end of a telescopic spring (442), the other end of the telescopic spring (442) being slidably connected to the side of a rotating disk (444), a latch (443) being provided on the back of the rotating disk (444), a gear 1 (445) being fixedly connected to the front of the rotating disk (444), and a handle (446) being fixedly connected to the front of the gear 1 (445).

6. The easy-to-find portable medical record storage device according to claim 5, characterized in that: The transmission mechanism (45) comprises a transmission chain 1 (451), the inner wall of the transmission chain 1 (451) being rotatably connected to the side of the sleeve shaft (441), one end of the transmission chain 1 (451) being rotatably connected to the side of gear 2 (452), the side of gear 2 (452) being rotatably connected to transmission chain 2 (453), and one end of the transmission chain 2 (453) being rotatably connected to a roller (454).

7. The easy-to-find portable medical record storage device according to claim 1, characterized in that: The limiting mechanism (5) comprises an insertion rod (51), the outer edge of the insertion rod (51) being slidably connected to the inner wall of the box body (3), one end of the insertion rod (51) passing through the interior of an insertion ring (52), the outer edge of the insertion ring (52) being rotatably connected to a rack (53), and the side of the rack (53) being connected to a supporting mechanism (54).

8. The portable medical record storage device that is easy to search according to claim 7, characterized in that: The support mechanism (54) comprises a fixed seat (541), a side edge of the rack (53) is fixedly connected to one end of the fixed seat (541), an outer edge of the fixed seat (541) is fixedly connected to one end of a torsion spring (542), the other end of the torsion spring (542) is fixedly connected to the inner wall of a support plate (543), and a baffle (544) is fixedly connected to the side edge of the support plate (543).

9. The portable medical record storage device that is easy to search according to claim 1, characterized in that: The display assembly (6) comprises a crawler (61), the inner wall of the crawler (61) being rotatably connected to the side of the box body (3) via a bracket, the outer edge of the crawler (61) being fixedly connected to a toothed strip (62), and the side of the crawler (61) being fixedly connected to a label holder (63).

10. The portable medical record storage device that is easy to search according to claim 1, characterized in that: The moving assembly (2) comprises a connecting frame (21), the top end of the connecting frame (21) being fixedly connected to the bottom end of the box body (3), the inner wall of the connecting frame (21) being rotatably connected to a rotating shaft (22), and the outer edge of the rotating shaft (22) being fixedly connected to a roller (23).

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