Loading box

By providing locking parts and limiting parts on the loading box cover, the problem of the handle falling out when the loading box is overloaded is solved, the structural stability and user experience are improved, the installation process is simplified and the maintenance cost is reduced.

CN223432703UActive Publication Date: 2025-10-14NINGBO FREE TRADE ZONE REFINE MOULD TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423099003.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-10-14
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

The matching mode between the cover and the handle of the existing loading box is relatively simple, which results in the handle easily coming off the cover when the load in the loading box is too heavy, thereby reducing the user experience.

Method used

A locking piece is provided on the cover of the loading box, and the handle and the cover are connected by the locking piece passing through the first locking hole. A limiting component is provided at the end of the locking piece away from the handle, so that the outer diameter of the limiting component is larger than the aperture of the locking hole to limit the handle from falling out. At the same time, elastic parts, retaining springs and other components can be optionally provided to enhance stability.

Benefits of technology

It effectively prevents the handle from falling off under heavy load conditions, improves the structural stability and user experience of the loading box, simplifies the installation process, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a loading box. The loading box comprises a box body; the cover body is matched with the box body, and a first locking hole is formed in the cover body; the handle is arranged on the cover body; the locking piece penetrates through the first locking hole so as to connect the handle and the cover body; the limiting component is arranged at the end, away from the handle, of the locking piece, and the outer diameter of the limiting component is larger than the first hole diameter of the first locking hole so that the handle can be prevented from being disengaged from the first locking hole; the loading box solves the technical problems that in the prior art, the matching mode of a cover body and a handle of a loading box is simple, so that when the loading weight in the loading box is too heavy, the handle is prone to being disengaged from the cover body, and the use experience of a user is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, and in particular to a loading box. Background Art

[0002] With the development of society and the improvement of people's living standards, loading boxes have become an indispensable practical tool. Their applications in daily life are wide and diverse. In daily family life, loading boxes can be used to store household items such as clothes, books, toys, tools, etc.; in the logistics industry, loading boxes are used to load, transport and store goods.

[0003] In the prior art, a handle is usually provided on the cover of a loading box to facilitate the user to carry it.

[0004] However, there is at least one of the following problems in the related art: the matching method between the cover and the handle of the loading box in the prior art is relatively simple, which results in the handle easily falling off the cover when the load in the loading box is too heavy, thereby reducing the user experience. Utility Model Content

[0005] The technical problem solved by the present invention is that the matching mode between the cover and the handle of the loading box in the prior art is relatively simple, which results in that when the load in the loading box is too heavy, the handle is likely to fall off from the cover, thereby reducing the user experience.

[0006] To solve the above problems, the utility model provides a loading box, which includes: a box body; a cover body, the cover body cooperates with the box body, and the cover body is provided with a first locking hole; a handle, the handle is provided on the cover body; a locking piece, the locking piece passes through the first locking hole to connect the handle and the cover body; a limiting component, the limiting component is provided at the end of the locking piece away from the handle, and the outer diameter of the limiting component is larger than the first aperture of the first locking hole to limit the handle from falling out of the first locking hole.

[0007] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution connects the handle and the cover body by setting a locking piece through the first locking hole, and the limiting component is set at the end of the locking piece away from the handle, and the outer diameter of the limiting component is larger than the first hole diameter of the first locking hole to limit the handle from falling out of the first locking hole, avoiding the situation in the existing technology where the handle falls out of the cover body when the load weight in the loading box is too heavy, thereby improving the user experience.

[0008] In an example of the present invention, the locking member includes a matching member; the limiting member includes an elastic member; wherein, after the matching member passes through the first locking hole, the elastic member abuts against the side of the cover body away from the handle.

[0009] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution improves the structural stability of the loading box by setting a matching piece to cooperate with the elastic piece. At the same time, the setting of the elastic piece makes it easier for the user to pass the matching piece through the first locking hole.

[0010] In one example of the present invention, the elastic member includes an elastic boss, and the elastic boss is integrally arranged with the mating member; wherein, when the mating member and the first locking hole form a first mating position, the elastic boss is squeezed into the first locking hole; when the mating member and the first locking hole change from the first mating position to the second mating position, the elastic boss extends out from the first locking hole and rests against the side of the cover body away from the handle.

[0011] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: the elastic boss and the matching piece of this solution are set in one piece, and only one step is required for installation, which simplifies the assembly process and improves installation efficiency.

[0012] In one example of the present invention, the elastic member includes a retaining spring, and the retaining spring and the mating member are separately arranged; after the mating member passes through the first locking hole, the mating member has a protrusion extending relative to the cover body, and the protrusion is provided with a groove; wherein the retaining spring cooperates with the groove to limit the mating member from falling out of the first locking hole.

[0013] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution further avoids the situation where the user's hand falls out of the cover during use by setting a retaining spring and cooperating with the groove, thereby improving the structural stability of the loading box.

[0014] In one example of the present invention, a first connecting hole is provided at one end of the locking member away from the handle; the limiting component includes a stopper; wherein, after the locking member passes through the first locking hole, the stopper abuts against the side of the cover body away from the handle.

[0015] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution further improves the structural stability of the loading box.

[0016] In one example of the present invention, the stop member includes a protrusion, and the protrusion is integrally arranged with the locking member; wherein, when the locking member and the first locking hole form a third mating position, the protrusion is squeezed into the first locking hole; when the locking member and the first locking hole are changed from the third mating position to the fourth mating position, the protrusion extends from the first locking hole and abuts against the side of the cover body away from the handle.

[0017] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution makes the protrusion and the locking piece an integral whole, reduces the number of parts, makes the structure more compact, and saves installation space.

[0018] In one example of the utility model, the stop piece further comprises a connecting column, the connecting column is matched with the first connecting hole when the locking piece is changed from the third matching position to the fourth matching position with the first locking hole; wherein the diameter of the connecting column is larger than the diameter of the first connecting hole.

[0019] Compared with the prior art, the technical effects reached by adopting the technical scheme are: the diameter of the connecting column is larger than the diameter of the first connecting hole, so that the connecting column is matched with the first connecting hole in interference, avoiding the shaking of the locking piece in the first locking hole during the process of the user pulling the loading box by the handle, so that the stability of the loading box structure is improved.

[0020] In one example of the utility model, the stop piece comprises a blocking piece and a first screw, and the blocking piece is provided with a first screw hole through which the first screw passes; the first connecting hole comprises a second screw hole matched with the first screw; wherein the outer diameter of the blocking piece is larger than the first hole diameter, so that the blocking piece is abutted on the side of the cover body away from the handle when the first screw passes through the first screw hole and is matched with the second screw hole.

[0021] Compared with the prior art, the technical effects reached by adopting the technical scheme are: the outer diameter of the blocking piece is larger than the first hole diameter, so that the blocking piece can be accurately abutted on the cover body after the locking piece passes through the first locking hole, playing a limiting role. In addition, the first screw passes through the first screw hole of the blocking piece and is matched with the second screw hole of the locking piece, increasing the connection stability between the locking piece and the cover body, so that the entire loading box is more firm during the carrying process.

[0022] In one example of the utility model, the stop piece comprises a second screw, and the first connecting hole comprises a third screw hole matched with the second screw; wherein the second screw is provided with a lead-in portion extending into the third screw hole and a head portion extending out of the third screw hole, and the diameter of the head portion is larger than the first hole diameter, so that the head portion is abutted on the side of the cover body away from the handle when the second screw is matched with the third screw hole.

[0023] Compared with the prior art, the technical effects reached by adopting the technical scheme are: the diameter of the head portion is larger than the second hole diameter of the first locking hole, so that the head portion can be closely abutted on the cover body after the locking piece is fixed, enhancing the stability of the loading box.

[0024] In one example of the utility model, the locking piece is integrally arranged with the handle; or the locking piece is separately arranged with the handle, and the handle is provided with a second locking hole, and the locking piece is connected with the limiting part in sequence through the second locking hole and the first locking hole.

[0025] Compared with the prior art, the technical effects reached by adopting the technical scheme are: the structural stability of the loading box is further improved.

[0026] Preferably, in an example of the present invention, the locking member and the handle are provided separately, so that when either the handle or the locking member is damaged, it can be replaced separately, thereby reducing the maintenance cost of the loading box.

[0027] After adopting the technical solution of the utility model, the following technical effects can be achieved:

[0028] (1) The utility model provides a loading box, which connects the handle and the cover body by setting a locking member passing through the first locking hole, and a limiting member is set at the end of the locking member away from the handle, and the outer diameter of the limiting member is larger than the first hole diameter of the first locking hole to limit the handle from falling out of the first locking hole, thereby avoiding the situation in the prior art that the handle falls out of the cover body when the load weight in the loading box is too heavy, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings to be used in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts.

[0030] Figure 1 A three-dimensional diagram of a cover of a loading box provided by an embodiment of the present invention;

[0031] Figure 2 This is one of the partial schematic diagrams of a cover of a loading box provided by an embodiment of the present invention;

[0032] Figure 3 for Figure 2 One of the cross-sectional views of AA;

[0033] Figure 4 for Figure 3 Enlarged view of middle area A;

[0034] Figure 5 for Figure 2 The second cross-sectional view of AA in the middle;

[0035] Figure 6 for Figure 5 Enlarged view of middle area B;

[0036] Figure 7 for Figure 2 The third cross-sectional view of AA in the middle;

[0037] Figure 8 for Figure 7 Enlarged view of middle area C;

[0038] Figure 9 for Figure 2 Sectional view 4 of AA;

[0039] Figure 10 for Figure 5 Enlarged view of middle area D;

[0040] Figure 11 This is a schematic diagram of the structure of a handle of a loading box provided by an embodiment of the present utility model;

[0041] Figure 12 This is a second structural diagram of a handle of a loading box provided by an embodiment of the present utility model;

[0042] Figure 13 This is a second partial schematic diagram of a cover of a loading box provided by an embodiment of the present invention.

[0043] Description of reference numerals:

[0044] 100. Cover body; 110. First locking hole; 120. Receiving groove; 121. Second recessed portion; 200. Handle; 210. Second locking hole; 220. Hand piece; 221. First recessed portion; 300. Locking member; 310. Protrusion; 311. Groove; 400. Elastic boss; 500. Retaining spring; 600. Stop member; 610. Bump; 620. Spacer; 630. First screw; 640. Second screw; 641. Head; 642. Introduction portion; 700. Connecting column. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] like Figure 11 and Figure 12 As shown in FIG. 1 , a schematic diagram of the structure of the handle 200 provided by an embodiment of the present invention is shown. For ease of description, the structure of the handle 200 is divided into a first end portion 800 and a second end portion 900 . First, the first end portion 800 of the handle 200 is described. Specific descriptions are as follows:

[0047] like Figures 1 to 13As shown, the present invention provides a loading box, comprising: a box body, a cover 100, a handle 200, a locking member 300, and a limiting component. Specifically, the cover 100 cooperates with the box body and is provided with a first locking hole 110. The handle 200 is disposed on the cover 100. The locking member 300 passes through the first locking hole 110 to connect the handle 200 to the cover 100. The limiting component is disposed at an end of the locking member 300 away from the handle 200, and the outer diameter of the limiting component is larger than the first aperture of the first locking hole 110 to prevent the handle 200 from falling out of the first locking hole 110.

[0048] In this solution, a locking member 300 is arranged to pass through the first locking hole 110 to connect the handle 200 and the cover body 100. A limiting component is arranged at the end of the locking member 300 away from the handle 200, and the outer diameter of the limiting component is larger than the first hole diameter of the first locking hole 110 to limit the handle 200 from escaping from the first locking hole 110, thereby avoiding the situation in the prior art where the handle 200 detaches from the cover body 100 when the load weight in the loading box is too heavy, thereby improving the user experience.

[0049] Furthermore, the locking member 300 includes a matching member; the limiting member includes an elastic member; wherein, after the matching member passes through the first locking hole 110 , the elastic member abuts against the side of the cover body 100 away from the handle 200 .

[0050] This solution improves the structural stability of the loading box by providing a matching piece to cooperate with the elastic piece. At the same time, the provision of the elastic piece makes it easier for the user to pass the matching piece through the first locking hole 110 .

[0051] It should be noted that the matching piece in the embodiment of the present invention can be a hollow steel pin or a solid steel pin.

[0052] Further, such as Figures 1 to 13 As shown, the elastic member includes an elastic boss 400, and the elastic boss 400 is integrally arranged with the mating member; wherein, when the mating member and the first locking hole 110 form a first mating position, the elastic boss 400 is squeezed into the first locking hole 110; when the mating member and the first locking hole 110 are changed from the first mating position to the second mating position, the elastic boss 400 extends from the first locking hole 110 and abuts against the side of the cover body 100 away from the handle 200.

[0053] The elastic boss 400 of this solution is integrally provided with the mating piece, and only one step is required for installation, which simplifies the assembly process and improves installation efficiency.

[0054] Further, such as Figures 3 to 13As shown, the elastic member includes a snap spring 500, and the snap spring 500 is arranged separately from the fitting member; after the fitting member passes through the first locking hole 110, the fitting member has a protruding portion 310 extending relative to the cover 100, and the protruding portion 310 is provided with a groove 311; wherein the snap spring 500 cooperates with the groove 311 to limit the fitting member from being pulled out of the first locking hole 110.

[0055] The present scheme further avoids the situation that the handle 200 is pulled out of the cover 100 during use by the user by arranging the snap spring 500 to cooperate with the groove 311, thereby improving the structural stability of the loading box.

[0056] Further, the end of the locking member 300 away from the handle 200 is provided with a first connecting hole; the limiting component includes a stopper 600; wherein after the locking member 300 passes through the first locking hole 110, the stopper 600 abuts against the side of the cover 100 away from the handle 200, thereby further improving the structural stability of the loading box.

[0057] Further, as shown in the first aspect, Figures 7 to 13 the stopper 600 includes a protruding block 610, and the protruding block 610 is arranged integrally with the locking member 300; wherein when the locking member 300 and the first locking hole 110 form the third cooperation position, the protruding block 610 is extruded in the first locking hole 110; when the locking member 300 and the first locking hole 110 change from the third cooperation position to the fourth cooperation position, the protruding block 610 extends out of the first locking hole 110 and abuts against the side of the cover 100 away from the handle 200.

[0058] The present scheme arranges the protruding block 610 integrally with the locking member 300, so that the protruding block 610 and the locking member 300 become an integral whole, thereby reducing the number of parts, making the structure more compact, and saving installation space.

[0059] It should be noted that the end of the locking member 300 away from the handle 200 is provided with a first connecting hole; the limiting component includes a stopper 600; when the locking member 300 and the first locking hole 110 form the third cooperation position, the protruding block 610 is extruded by the inner wall of the first locking hole 110, and then the position of the first connecting hole is extruded, and finally the protruding block 610 is extruded in the first locking hole 110.

[0060] Further, as shown in the first aspect, Figures 7 to 13 the stopper 600 further includes a connecting column 700, and when the locking member 300 and the first locking hole 110 change from the third cooperation position to the fourth cooperation position, the connecting column 700 cooperates with the first connecting hole; wherein the diameter of the connecting column 700 is greater than the diameter of the first connecting hole.

[0061] The diameter of the connecting column 700 is greater than the diameter of the first connecting hole, and the connecting column 700 and / or the first connecting hole in the scheme can be deformed to achieve interference fit between the connecting column 700 and the first connecting hole when the connecting column 700 is matched with the first connecting hole, so as to extrude the locking piece 300 in the first locking hole 110, avoid the shaking of the locking piece 300 in the first locking hole 110 during the process of lifting the loading box by the handle 200, and prevent the shaking of the box body, thereby improving the stability of the loading box structure.

[0062] Further, as shown in Figure 5 and Figure 6 , the stop piece 600 includes a blocking piece 620 and a first screw 630, and the blocking piece 620 is provided with a first screw hole through which the first screw 630 passes; the first connecting hole includes a second screw hole matched with the first screw 630; wherein the outer diameter of the blocking piece 620 is greater than the first hole diameter, so that when the first screw 630 passes through the first screw hole and matches with the second screw hole, the blocking piece 620 abuts against the side of the cover body 100 away from the handle 200.

[0063] The outer diameter of the blocking piece 620 is greater than the first hole diameter, which ensures that the blocking piece 620 can abut against the cover body 100 accurately after the locking piece 300 passes through the first locking hole 110, and plays a limiting role. In addition, by setting the first screw 630 to pass through the first screw hole of the blocking piece 620 and match with the second screw hole of the locking piece 300, the connection stability between the locking piece 300 and the cover body 100 is increased, so that the entire loading box is more firm during the carrying process.

[0064] Further, as shown in Figure 9 and Figure 10 , the stop piece 600 includes a second screw 640, and the first connecting hole includes a third screw hole matched with the second screw 640; wherein the second screw 640 is provided with a lead-in portion 642 extending into the third screw hole and a head portion 641 extending out of the third screw hole, and the diameter of the head portion 641 is greater than the first hole diameter, so that when the second screw 640 matches with the third screw hole, the head portion 641 abuts against the side of the cover body 100 away from the handle 200.

[0065] The diameter of the head portion 641 is greater than the second hole diameter of the first locking hole 110, which ensures that the head portion 641 can abut against the cover body 100 tightly after the locking piece 300 is fixed, and enhances the stability of the loading box.

[0066] Furthermore, the locking member 300 is integrally arranged with the handle 200; or the locking member 300 and the handle 200 are separately arranged, and the handle 200 is provided with a second locking hole 210, and the locking member 300 passes through the second locking hole 210 and the first locking hole 110 in sequence to be connected with the limiting component, thereby further improving the structural stability of the loading box.

[0067] Preferably, further, as Figure 11 and Figure 12 As shown, the locking member 300 and the handle 200 are separately provided, so that when either the handle 200 or the locking member 300 is damaged, it can be replaced separately, thereby reducing the maintenance cost of the loading box.

[0068] Secondly, if Figure 11 and Figure 12 As shown, the structure of the second end 900 of the handle 200 provided in the embodiment of the present invention includes the locking member 300 and the limiting member in any of the above-mentioned technical solutions, which will not be repeated here; and the specific structure of the second end 900 can be the same as the specific structure of the first end 800, or it can be different from the specific structure of the first end 800.

[0069] like Figure 6 and Figure 10 As shown, in some embodiments of the present invention, after the locking member 300 passes through the first locking hole 110, the first end 800 of the locking member 300, which is away from the handle 200, is flush with the lid 100. This prevents the locking member 300 from shaking in the first locking hole 110 when the user lifts the loading box by the handle 200, thereby preventing the box body from shaking, thereby improving the stability of the loading box structure.

[0070] Further, such as Figures 11 to 13 As shown, in some embodiments of the present invention, the carrying case provided by the cover 100 is provided with a receiving slot 120; the handle 200 is provided with a hand piece 220, and the hand piece 220 is placed in the receiving slot 120. The provision of the receiving slot 120 provides a fixed storage location for the hand piece 220 when not in use, making it easier for the user to stack the carrying case during transportation.

[0071] Further, such as Figure 11 and Figure 12 As shown, in some embodiments of the present invention, the carrying case provided by the hand piece 220 is provided with a plurality of first recessed portions 221. By providing a plurality of first recessed portions 221 on the hand piece, it is easier for the user to hold it, and the hand piece is prevented from slipping out of the user's hand, thereby further improving the user experience.

[0072] Further, such as Figure 13As shown, in some embodiments of the present invention, the loading box provided by the receiving slot 120 is provided with a second recessed portion 121. By providing the second recessed portion 121 in the receiving slot 120, it is convenient for the user to reach into the handle 200 through the second recessed portion 121, thereby improving the convenience of the handle 200.

[0073] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A loading box, characterized in that: The loading box comprises: Box body; A cover body (100), the cover body (100) cooperates with the box body, and the cover body (100) is provided with a first locking hole (110); a handle (200), the handle (200) being disposed on the cover (100); A locking member (300), the locking member (300) passing through the first locking hole (110) to connect the handle (200) and the cover body (100); A limiting component is provided at an end of the locking member (300) away from the handle (200), and the outer diameter of the limiting component is larger than the first aperture of the first locking hole (110) to limit the handle (200) from coming out of the first locking hole (110).

2. The loading box according to claim 1, characterized in that: The locking member (300) includes a matching member; The limiting component includes an elastic member; Wherein, after the fitting piece passes through the first locking hole (110), the elastic piece abuts against a side of the cover body (100) away from the handle (200).

3. The loading box according to claim 2, characterized in that: The elastic member comprises an elastic boss (400), and the elastic boss (400) is integrally provided with the matching member; When the matching piece and the first locking hole (110) form a first matching position, the elastic boss (400) is squeezed into the first locking hole (110); When the mating piece and the first locking hole (110) are transformed from the first mating position to the second mating position, the elastic boss (400) extends from the first locking hole (110) and abuts against a side of the cover body (100) away from the handle (200).

4. The loading box according to claim 2, characterized in that: The elastic member comprises a clamping spring (500), and the clamping spring (500) and the matching member are provided separately; After the matching piece passes through the first locking hole (110), the matching piece has a protrusion (310) extending relative to the cover body (100), and the protrusion (310) is provided with a groove (311); The retaining spring (500) cooperates with the groove (311) to limit the fitting from falling out of the first locking hole (110).

5. The loading box according to claim 1, characterized in that: A first connecting hole is provided at one end of the locking member (300) away from the handle (200); The limiting component includes a stopper (600); Wherein, after the locking member (300) passes through the first locking hole (110), the stop member (600) abuts against a side of the cover body (100) away from the handle (200).

6. The loading box according to claim 5, characterized in that: The stopper (600) includes a protrusion (610), and the protrusion (610) and the locking member (300) are integrally provided; When the locking member (300) and the first locking hole (110) form a third matching position, the protrusion (610) is squeezed into the first locking hole (110); When the locking member (300) and the first locking hole (110) are transformed from the third matching position to the fourth matching position, the protrusion (610) extends from the first locking hole (110) and abuts against a side of the cover body (100) away from the handle (200).

7. The loading box according to claim 6, characterized in that: The stopper (600) further comprises a connecting column (700), and when the locking member (300) and the first locking hole (110) are transformed from the third matching position to the fourth matching position, the connecting column (700) is matched with the first connecting hole; Wherein, the diameter of the connecting column (700) is greater than the diameter of the first connecting hole.

8. The loading box according to claim 5, characterized in that: The stopper (600) comprises a barrier (620) and a first screw (630), and the barrier (620) is provided with a first screw hole for the first screw (630) to pass through; The first connecting hole comprises a second screw hole that cooperates with the first screw (630); The outer diameter of the barrier member (620) is larger than the first hole diameter, so that when the first screw (630) passes through the first screw hole and cooperates with the second screw hole, the barrier member (620) abuts against the side of the cover body (100) away from the handle (200).

9. The loading box according to claim 5, characterized in that: The stopper (600) includes a second screw (640), and the first connecting hole includes a third screw hole that cooperates with the second screw (640); The second screw (640) is provided with an introduction portion (642) extending into the third screw hole and a head portion (641) extending out of the third screw hole, and the diameter of the head portion (641) is larger than the first hole diameter, so that when the second screw (640) is engaged with the third screw hole, the head portion (641) abuts against the side of the cover body (100) away from the handle (200).

10. The loading box according to any one of claims 1 to 9, characterized in that The locking member (300) is integrally provided with the handle (200); or The locking member (300) is separately provided with the handle (200), and the handle (200) is provided with a second locking hole (210). The locking member (300) passes through the second locking hole (210) and the first locking hole (110) in sequence and is connected to the limiting component.

Citation Information

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