Portable box body capable of preventing lens body from being polluted

By designing a closed portable endoscope transport box, the problem of inability to prevent pollution and shaking in the prior art is solved, effective pollution protection and wear reduction are achieved, and the operation process is simplified.

CN222248190UActive Publication Date: 2024-12-27ANKON MEDICAL TECH (SHANGHAI) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323614044.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-27
Publication Date
2024-12-27
Estimated Expiration
2033-12-27

AI Technical Summary

Technical Problem

Existing endoscope transport boxes cannot effectively prevent wear caused by contamination and shaking of the mirror, affecting the timeliness of use.

Method used

A closed portable box is designed, with independent and non-connected internal and external boxes. The inner box is equipped with a buffer layer and a fixing member, which can fix and protect the endoscope and prevent external pollution and shaking.

Benefits of technology

Effectively prevent endoscope from contamination and wear during transportation, simplifies the installation and cleaning process, and extends the timeliness of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222248190U_ABST
    Figure CN222248190U_ABST
Patent Text Reader

Abstract

The utility model discloses a portable box capable of preventing lens pollution, which comprises an outer box, an inner box and a buffer layer, the inner box and the buffer layer are arranged in the outer box and are mutually independent and not communicated, the buffer layer is arranged at the bottom of the outer box, the inner box is arranged on the buffer layer, and the inner box is arranged on the buffer layer. The inner box body is fixedly installed in the outer box body, a fixing piece is arranged in the inner box body, and the fixing piece is used for installing an endoscope in the inner box body. The utility model mainly solves the problem that the endoscope is easily polluted by the external environment in the placing, storing and transporting processes, and also solves the problem that the endoscope is abraded due to shaking in the transporting process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the field of endoscope transport boxes, in particular to a portable box for preventing endoscope body from being polluted. Background Art

[0002] In the existing transportation of endoscopes, especially in the transportation of portable endoscopes, the scope body is usually placed in a box. The part of the box used to place the electronic endoscope is a slotted foam. After the scope body is placed in the slot, the operating part and the light guide plug part of the electronic endoscope are fixed with Velcro. The above-mentioned box is an open structure, which cannot guarantee that the electronic endoscope will not be contaminated by impurities, bacteria, etc. during storage and transportation. At the same time, the reliability of fixing with Velcro is limited, and the electronic endoscope will still shake during transportation, causing the electronic endoscope to wear during transportation. Because the box of the prior art cannot prevent the contamination of the electronic endoscope during transportation, the electronic endoscope needs to be cleaned and disinfected before it can be used outside, which affects the timeliness and delays the inspection. Utility Model Content

[0003] In view of this, the utility model provides a portable box for preventing endoscope body from being contaminated, which solves the problem that the endoscope is easily contaminated by the external environment during placement, storage and transportation, and also solves the problem that the endoscope is worn due to shaking during transportation.

[0004] The utility model provides a portable box for preventing endoscope contamination, comprising an outer box, and an inner box and a buffer layer arranged inside the outer box, wherein the inner box and the outer box are independent of each other and are not connected to each other, the buffer layer is arranged at the bottom of the outer box, the inner box is arranged on the buffer layer, the inner box is fixedly installed inside the outer box, and a fixing part is arranged inside the inner box, and the fixing part is used to install the endoscope in the inner box.

[0005] Furthermore, the inner box body includes a bottom box and an upper cover, the bottom box is installed on the buffer layer, one side of the upper cover is connected to one side of the bottom box, and the upper cover can rotate around one side of the bottom box, a sealing ring is provided between the bottom box and the upper cover, and the fixing part is installed inside the bottom box.

[0006] Furthermore, the fixing member includes a first fixing member, a second fixing member and a third fixing member, the first fixing member and the second fixing member are respectively arranged on both sides of the bottom of the bottom box, and the third fixing member is arranged on the side and end of the bottom of the bottom box.

[0007] Further, the first fixing member includes a first upper fixing member and a first lower fixing member, the first lower fixing member is fixed on the bottom box, the first upper fixing member is installed on the first lower fixing member, and one side of the first upper fixing member is connected to one side of the first lower fixing member, and the other side of the first upper fixing member can rotate around one side of the first lower fixing member.

[0008] Further, the first lower fixing member is provided with an operating part fixing groove, a first cable fixing groove, and a second cable fixing groove, the operating part fixing groove and the first cable fixing groove are arranged on the first lower fixing member along the length direction of the bottom box, and the operating part fixing groove is arranged at a position close to the side of the bottom box, the second cable fixing groove is arranged on the first lower fixing member along the width direction of the bottom box, and the first upper fixing member is provided with grooves corresponding to the operating part fixing groove and the first cable fixing groove.

[0009] Further, the second fixing member includes a second upper fixing member and a second lower fixing member, the second lower fixing member is fixed on the bottom box, the second upper fixing member is installed on the second lower fixing member, and one side of the second upper fixing member is connected to one side of the second lower fixing member, and the other side of the second upper fixing member can rotate around one side of the second lower fixing member.

[0010] Furthermore, the second lower fixing member is provided with a plug part fixing groove, a third cable fixing groove, and a first insert tube fixing groove, and the plug part fixing groove, the third cable fixing groove, and the first insert tube fixing groove are arranged on the second lower fixing member along the length direction of the bottom box, and the first insert tube fixing groove is arranged at a position close to the side of the bottom box, and the third cable fixing groove is arranged adjacent to the first insert tube fixing groove; the second upper fixing member is provided with a groove corresponding to the plug part fixing groove.

[0011] Furthermore, the third fixing member includes a curved fixing member and a straight fixing member, the curved fixing member is arranged at an end position close to the bottom of the bottom box, and the straight fixing member is arranged at a position on the bottom box on the same side as the second fixing member.

[0012] Furthermore, a fourth cable fixing groove and a second pipe fixing groove are provided on the curved fixing member, and the second pipe fixing groove is located at an end position of the curved fixing member close to the bottom box, and a third pipe fixing groove is provided on the straight fixing member, and the third pipe fixing groove is aligned with the first pipe fixing groove.

[0013] Furthermore, fixed beams are provided on both sides of the outside of the inner box body, the inner box body is connected to the outer box body through the fixed beams, and handles are provided on the fixed beams; mounting holes are provided at both ends of the fixed beams, and the fixed beams mount the inner box body on the outer box body through the cooperation of the mounting holes and the nuts, and the handles are arranged at the middle position of the fixed beams.

[0014] Compared with the existing technology, the utility model has the following beneficial technical effects:

[0015] The utility model provides a portable box for preventing endoscope contamination. A closed inner box is arranged inside the outer box, and a fixing part for fixing the endoscope is also arranged inside the inner box, which can replace the existing pearl foam groove, thereby solving the problem that the endoscope is easily polluted by the external environment during placement, storage and transportation, and the inspection will not be delayed due to the need for re-cleaning and disinfection of the contaminated endoscope. At the same time, it can also solve the problem of wear and tear of the endoscope due to shaking during transportation. In addition, the internal structure of the utility model is simple, and it is easy to install and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of a portable box for preventing mirror body contamination of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the inner box in the utility model;

[0018] Figure 3 The schematic diagram of the structure of the utility model without the endoscope in the inner box Figure 1 ;

[0019] Figure 4 The schematic diagram of the structure of the utility model without the endoscope in the inner box Figure 2 .

[0020] Among them: 10-outer box; 11-upper box; 12-lower box; 13-handle; 14-pulley; 20-inner box; 21-bottom box; 22-upper cover; 30-buffer layer; 40-fixed beam; 41-mounting hole; 42-screw; 50-handle; 60-fixing piece; 61-first fixing piece; 611-first upper fixing piece; 612-first lower fixing piece; 612a-operating part fixing groove; 612b-first cable fixing groove; 612c-second cable fixing groove; 6 2-second fixing piece; 621-second upper fixing piece; 622-second lower fixing piece; 622a-plug part fixing groove; 622b-third cable fixing groove; 622c-first cannula fixing groove; 63-third fixing piece; 631-curved fixing piece; 631a-fourth cable fixing groove; 631b-second cannula fixing groove; 632-straight fixing piece; 632a-third cannula fixing groove; 70-endoscope; 71-operating part; 72-cable; 73-plug part; 74-cannula. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or position relationship indicated in the description is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred parts or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] See also Figure 1-2 The utility model provides a portable box for preventing endoscope contamination, comprising an outer box 10, an inner box 20 and a buffer layer 30 arranged inside the outer box 10, wherein the buffer layer 30 is arranged at the bottom of the outer box 10, the inner box 20 is arranged on the buffer layer 30, the inner box 20 is arranged inside the outer box 10, and a fixing part 60 is arranged inside the inner box 20, and the fixing part 60 is used to install the endoscope 70 in the inner box. The utility model solves the problem that the upper box of the portable endoscope 70 is easily contaminated by the external environment during the placement, storage and transportation of the electronic endoscope 70, and solves the problem that the electronic endoscope 70 shakes during the transportation of the electronic endoscope 70, causing the electronic endoscope 70 to be worn. Among them, the buffer layer 30 can be a structure with good buffering performance such as a soft pad, foam cotton or silicone pad. It should be noted that the inner box 20 and the outer box 10 are independent of each other and not connected to each other. The inner box 20 isolates an independent space in the cavity of the outer box 10 for accommodating the endoscope, thereby reducing the impact of contaminants that may exist in the environment of the outer box 10 on the endoscope in the inner box 10.

[0024] Specifically, the outer box body 10 includes an upper box body 11 and a lower box body 12, the buffer layer 30 is arranged at the bottom of the upper box body 11, the inner box body 20 is arranged inside the upper box body 11, and the outside of the lower box body 12 is provided with a handle 13 and a pulley 14 to facilitate the transportation of the box. The inner box body 20 is installed on the upper box body 11 to prevent the lower box body 12 from vibrating during the sliding process and damaging the endoscope 70 inside the inner box body 20.

[0025] See also Figure 3-4 The inner box 20 includes a bottom box 21 and an upper cover 22. One side of the upper cover 22 is connected to one side of the bottom box 20, and the upper cover 22 can rotate around one side of the bottom box 20 to open or close the inner box 20. A sealing ring is provided between the bottom box 21 and the upper cover 22. When the upper cover 22 is covered on the bottom box 21, the entire inner box 20 can be in a closed state to prevent pollutants from entering the inner box 20. The buffer layer 30 is made of a soft material. The bottom box 21 is arranged at the position of the buffer layer 30 of the upper box 11, which can play a buffering role for the bottom box 21. In addition, the fixing member 60 is installed inside the bottom box 21.

[0026] Specifically, fixed beams 40 are provided on both sides of the outer side of the inner box 20, and the inner box 20 is connected to the outer box 10 through the fixed beams 40, and a handle 50 is provided on the fixed beams 40. Mounting holes 41 are provided at both ends of the fixed beams 40, and the fixed beams 40 mount the inner box 20 on the upper box 11 through the mounting holes 41 and the nuts 42, which is convenient for the disassembly and installation of the inner box 20; a handle 50 is provided at the middle position of the fixed beam 40, and the handle 50 is used to take and place the inner box 20. Through the threaded matching method, the inner box 20 can be firmly installed in the outer box 10, which can effectively prevent the damage of the mirror body caused by the separation of the inner box 20 and the outer box 10. In addition, when it is necessary to separate the inner box 20 and the outer box 10, the handle 50 is convenient for holding and applying force, which can reduce the difficulty of use for the operator.

[0027] Specifically, the fixing member 60 includes a first fixing member 61, a second fixing member 62 and a third fixing member 63. The first fixing member 61 and the second fixing member 62 are respectively arranged at the two sides of the bottom of the bottom box 21, and the third fixing member 63 is arranged at the side and end of the bottom of the bottom box 21. The side refers to the two sides in the length direction of the bottom box 21, and the end refers to the two sides in the width direction of the bottom box 21. The first fixing member 61 is mainly used to fix the operating part 71 and part of the cable 72 of the endoscope 70, the second fixing member 62 is mainly used to fix the plug part 73 of the endoscope 70, part of the cable 72 and part of the cannula 74, and the third fixing member 63 is mainly used to fix the cable 72 and the cannula 74. The endoscope 70 can be firmly fixed to the bottom of the inner box 20 by the first fixing member 61, the second fixing member 62 and the third fixing member 63, thereby reducing the wear and tear of the endoscope 70.

[0028] Furthermore, the first fixing member 61 includes a first upper fixing member 611 and a first lower fixing member 612, the first lower fixing member 612 is fixed on the bottom box 21, the first upper fixing member 611 is installed on the first lower fixing member 612, and one side of the first upper fixing member 611 is connected to one side of the first lower fixing member 612, and the other side of the first upper fixing member 611 can rotate around one side of the first lower fixing member 612 to open or close the first upper fixing member 611 for installing and fixing the operating part 71 and part of the cable 72.

[0029] Specifically, the first lower fixing member 612 is provided with an operation portion fixing groove 612a, a first cable fixing groove 612b, and a second cable fixing groove 612c. The operation portion fixing groove 612a and the first cable fixing groove 612b are arranged along the length direction of the bottom box 21 (for example, arranged in parallel) on the first lower fixing member 612, and the operation portion fixing groove 612a is arranged at a position close to the side of the bottom box 21, and the second cable fixing groove 612c is arranged along the width direction of the bottom box 21 (for example, arranged in parallel) on the first lower fixing member 612. 12a is used to fix the operating part 71, the first cable fixing groove 612b is used to fix part of the cable 72, and the second cable fixing groove 612c is used to fix the part of the cable 72 connected to the operating part 71. The first upper fixing member 611 is provided with a groove corresponding to the operating part fixing groove 612a and the first cable fixing groove 612b (for example, the position, shape and size of the groove on the first upper fixing member 611 correspond to the operating part fixing groove 612a and the first cable fixing groove 612b), and cooperates with the first lower fixing member 612 to fix the operating part 71 and part of the cable 72. It should be noted that the operating part fixing groove 612a, the first cable fixing groove 612b, and the second cable fixing groove 612c all adopt a contoured structure and are made of a relatively soft material, which can make the operating part 71 and the cable 72 of the endoscope 70 more tightly engaged and prevent the endoscope 70 from shaking. Since the soft material can play a buffering role, it can also prevent the risk of damage to the endoscope 70 during use.

[0030] Furthermore, the second fixing member 62 includes a second upper fixing member 621 and a second lower fixing member 622, the second lower fixing member 622 is fixed on the bottom box 21, the second upper fixing member 621 is installed on the second lower fixing member 622, and one side of the second upper fixing member 621 is connected to one side of the second lower fixing member 622, and the other side of the second upper fixing member 621 can rotate around one side of the second lower fixing member 622 to open or close the second upper fixing member 621, which is used to install and fix the plug part 73 and part of the cable 72 and the insert 74.

[0031] Specifically, the second lower fixing piece 622 is provided with a plug part fixing groove 622a, a third cable fixing groove 622b, and a first cannula fixing groove 622c. The plug part fixing groove 622a, the third cable fixing groove 622b, and the first cannula fixing groove 622c are arranged on the second lower fixing piece 622 in parallel with the length direction of the bottom box 21, and the first cannula fixing groove 622c is arranged at a position close to the side of the bottom box 21, and the third cable fixing groove 622b is arranged adjacent to the first cannula fixing groove 622c; the plug part fixing groove 622a is used to fix the plug part 73 of the endoscope 70, the third cable fixing groove 622b is used to fix part of the cable 72, and the first cannula fixing groove 622c is used to fix part of the cannula 74. The second upper fixing piece 621 is provided with a groove corresponding to the plug part fixing groove 622a (for example, the position, shape and size of the groove on the second upper fixing piece 621 correspond to the plug part fixing groove 622a), which cooperates with the second lower fixing piece 622 to fix the plug part 73. It should be noted that the plug fixing groove 622a, the third cable fixing groove 622b, and the first insertion tube fixing groove 622c all adopt a contoured structure and are made of a relatively soft material, which can make the plug part 71, cable 72, and insertion tube 74 of the endoscope 70 fit more tightly without causing the endoscope 70 to shake. Since the soft material can act as a buffer, it can also prevent the risk of damage to the endoscope 70 during use.

[0032] Specifically, the third fixing member 63 includes a curved fixing member 631 and a straight fixing member 632. The curved fixing member 631 is arranged at an end position close to the bottom of the bottom box 21. The curved fixing member 631 is provided with a fourth cable fixing groove 631a and a second cannula fixing groove 631b, and the second cannula fixing groove 631b is located at the end position of the curved fixing member 631 close to the bottom box 21. The fourth cable fixing groove 631a and the second cannula fixing groove 631b are both curved grooves, which can fix the bent parts of the cable 72 and the cannula 74. The straight fixing member 632 is arranged on the bottom box 21 at the same side as the second fixing member 62. The straight fixing member 632 is provided with a third cannula fixing groove 632a. The third cannula fixing groove 632a is a straight groove, and the third cannula fixing groove 632a is aligned with the first cannula fixing groove 622c, and is used to fix the end of the cannula 74 away from the operating part 71. The fourth cable fixing groove 631a, the second cannula fixing groove 631b, and the third cannula fixing groove 632a all adopt a contoured structure and are made of a relatively soft material, which can not only make the cable 72 and the cannula 74 fit more tightly without causing the endoscope 70 to shake, but also because the soft material can act as a buffer, it can also prevent the risk of damage to the cable 72 and the cannula 74 during use.

[0033] Furthermore, the steps of installing the endoscope 70 on the inner box 20 are as follows:

[0034] When placing the endoscope 70, first place the operating part 71 on the operating part fixing groove 612a, and then place the cannula 74 connected to the operating part 71 in the second cannula fixing groove 631b and the third cannula fixing groove 632a in sequence; then place the end of the cable 72 connected to the operating part 71 in the second cable fixing groove 612c, the third cable fixing groove 622b, the fourth cable fixing groove 631a, and the first cable fixing groove 612b in sequence, and then place the plug part 73 in the plug part fixing groove 622a; then close the first upper fixing piece 611 and the second upper fixing piece 621 with the first lower fixing piece 612 and the second lower fixing piece 622 respectively; then close and lock the upper cover 22 and the bottom box 21 to make the interior of the inner box 20 in a closed state.

[0035] From the above description, it can be known that the utility model provides a portable box for preventing endoscope contamination. By setting a closed inner box 20 inside the outer box 10, and also setting a fixing part 60 for fixing the endoscope 70 inside the inner box 20, it can replace the existing pearl foam groove, and solves the problem that the portable endoscope 70 is easily polluted by the external environment during placement, storage and transportation. The inspection will not be delayed due to the need for re-cleaning and disinfection of the contaminated endoscope 70. At the same time, it can also solve the problem of wear and tear of the endoscope 70 due to shaking during transportation. In addition, the internal structure of the utility model is simple, which is easy to install and clean.

[0036] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A portable box for preventing lens contamination, characterized in that: The invention comprises an outer box (10), and an inner box (20) and a buffer layer (30) arranged inside the outer box (10); the inner box (20) and the outer box (10) are independent of each other and are not connected to each other; the buffer layer (30) is arranged at the bottom of the outer box (10); the inner box (20) is arranged on the buffer layer (30); the inner box (20) is fixedly installed inside the outer box (10); a fixing part (60) is arranged inside the inner box (20); the fixing part (60) is used to install an endoscope (70) in the inner box (20).

2. The portable case for preventing lens contamination according to claim 1, characterized in that: The inner box body (20) comprises a bottom box (21) and an upper cover (22); the bottom box (21) is mounted on the buffer layer (30); one side of the upper cover (22) is connected to one side of the bottom box (21); and the upper cover (22) can rotate around one side of the bottom box (21); a sealing ring is provided between the bottom box (21) and the upper cover (22); and the fixing member (60) is mounted inside the bottom box (21).

3. The portable case for preventing lens contamination according to claim 2, characterized in that: The fixing member (60) comprises a first fixing member (61), a second fixing member (62) and a third fixing member (63); the first fixing member (61) and the second fixing member (62) are respectively arranged at two sides of the bottom of the bottom box (21); and the third fixing member (63) is arranged at the side and end of the bottom of the bottom box (21).

4. The portable case for preventing lens contamination according to claim 3, characterized in that: The first fixing member (61) comprises a first upper fixing member (611) and a first lower fixing member (612), the first lower fixing member (612) being fixed on the bottom box (21), the first upper fixing member (611) being mounted on the first lower fixing member (612), and one side of the first upper fixing member (611) being connected to one side of the first lower fixing member (612), and the other side of the first upper fixing member (611) being capable of rotating around one side of the first lower fixing member (612).

5. The portable case for preventing lens contamination according to claim 4, characterized in that: The first lower fixing member (612) is provided with an operating portion fixing groove (612a), a first cable fixing groove (612b), and a second cable fixing groove (612c); the operating portion fixing groove (612a) and the first cable fixing groove (612b) are arranged on the first lower fixing member (612) along the length direction of the bottom box (21), and the operating portion fixing groove (612a) is arranged at a position close to the side of the bottom box (21); the second cable fixing groove (612c) is arranged on the first lower fixing member (612) along the width direction of the bottom box (21); and the first upper fixing member (611) is provided with grooves corresponding to the operating portion fixing groove (612a) and the first cable fixing groove (612b).

6. The portable case for preventing lens contamination according to claim 3, characterized in that: The second fixing member (62) comprises a second upper fixing member (621) and a second lower fixing member (622), the second lower fixing member (622) being fixed on the bottom box (21), the second upper fixing member (621) being mounted on the second lower fixing member (622), and one side of the second upper fixing member (621) being connected to one side of the second lower fixing member (622), and the other side of the second upper fixing member (621) being capable of rotating around one side of the second lower fixing member (622).

7. The portable case for preventing lens contamination according to claim 6, characterized in that: The second lower fixing member (622) is provided with a plug fixing groove (622a), a third cable fixing groove (622b), and a first insert tube fixing groove (622c); the plug fixing groove (622a), the third cable fixing groove (622b), and the first insert tube fixing groove (622c) are arranged on the second lower fixing member (622) along the length direction of the bottom box (21), and the first insert tube fixing groove (622c) is arranged at a position close to the side of the bottom box (21), and the third cable fixing groove (622b) is arranged adjacent to the first insert tube fixing groove (622c); the second upper fixing member (621) is provided with a groove corresponding to the plug fixing groove (622a).

8. The portable case for preventing lens contamination according to claim 7, characterized in that: The third fixing member (63) comprises a curved fixing member (631) and a straight fixing member (632); the curved fixing member (631) is arranged at an end position close to the bottom of the bottom box (21); and the straight fixing member (632) is arranged at a position on the bottom box (21) on the same side as the second fixing member (62).

9. The portable case for preventing lens contamination according to claim 8, characterized in that: The curved fixing member (631) is provided with a fourth cable fixing groove (631a) and a second insert tube fixing groove (631b), and the second insert tube fixing groove (631b) is located on the curved fixing member (631) at an end position close to the bottom box (21), and the straight fixing member (632) is provided with a third insert tube fixing groove (632a), and the third insert tube fixing groove (632a) is aligned with the first insert tube fixing groove (622c).

10. The portable case for preventing lens contamination according to claim 1, characterized in that: Fixed crossbeams (40) are provided on both sides of the outer portion of the inner box (20), the inner box (20) is connected to the outer box (10) via the fixed crossbeams (40), and handles (50) are provided on the fixed crossbeams (40); Mounting holes (41) are provided at both ends of the fixed crossbeam (40), and the fixed crossbeam (40) mounts the inner box body (20) on the outer box body (10) through the cooperation of the mounting holes (41) and nuts (42), and the handle (50) is arranged at the middle position of the fixed crossbeam (40).