Sealing and locking device for box body and box cover and box body

Abstract

The utility model relates to a box body and box cover sealing and locking device and a box body, and belongs to the technical field of box body locking, the box body and box cover sealing and locking device comprises a locking mechanism, the locking mechanism comprises a wedge-shaped block and a lock handle assembly capable of being clamped on the wedge-shaped block, a groove is formed in the wedge-shaped block, and the wedge-shaped block and the lock handle assembly are arranged in the groove. The lock handle assembly comprises a handle, a locking head connected with the handle and a spring arranged on the handle, and the locking head is driven by the handle so that the locking head can be clamped in the groove. The box cover and the box body can be locked by clamping the locking head in the groove, so that the locking head can be limited by the groove when being vibrated, and the locking head can be continuously jacked in the groove through the elastic force of the spring, so that the locking head is prevented from moving out of the groove; therefore, the box cover and the box body can be prevented from being easily unhooked when being vibrated and impacted to open the box.

Description

Technical Field

[0001] The present application relates to the technical field of box locking, and in particular to a sealing locking device for a box and a box cover, and a box. Background Art

[0002] Boxes are widely used in equipment manufacturing, such as modified vehicles, shelters and various engineering equipment. In modern manufacturing, we can see all kinds of box locks everywhere, most of which are simple locks and their derivative designs, with single functions and simple working conditions. With the development of industrialization, various requirements have been put forward for box structures according to different uses, and higher requirements are required, which need to have the characteristics of simple structure, convenient operation and good sealing.

[0003] The existing tool box is locked by turning the lock handle and then hooking the lock hook on the limit column to form a limit lock. However, it is not convenient to seal and lock the box with only a lock buckle, and it is easy to be unhooked when subjected to vibration and impact, causing the box to open. Summary of the invention

[0004] The embodiment of the present application provides a sealing and locking device for a box body and a box cover, and a box body, so as to solve the problem that the existing box body locking mechanism in the related art makes it easy for the box to be unhooked when subjected to vibration and impact, causing the box to open, and the sealing effect is poor when locked.

[0005] A first aspect of an embodiment of the present application provides a sealing and locking device for a box body and a box cover, comprising:

[0006] A locking mechanism, the locking mechanism comprising a wedge-shaped block and a lock handle assembly that can be snap-connected to the wedge-shaped block;

[0007] The wedge block is provided with a groove, and the lock handle assembly comprises a handle, a locking head connected to the handle, and a spring arranged on the handle. The locking head is driven by the handle to be clamped in the groove.

[0008] In some embodiments, the locking handle mechanism further includes a bolt for fixing the locking head and the spring on the handle.

[0009] In some embodiments, the handle includes a grip and a connector disposed on the grip, and a bolt hole is formed at one end of the connector away from the grip.

[0010] In some embodiments, the bolt is connected to the bolt hole of the connecting head.

[0011] In some embodiments, the locking head is arranged on the connecting head;

[0012] The locking head comprises a fixing sleeve and a locking tongue arranged on the outer side of the fixing sleeve;

[0013] The fixing sleeve is arranged on the outer side of the connecting head.

[0014] In some embodiments, the spring sleeve is arranged on the outside of the connecting head.

[0015] In some embodiments, the locking tongue is provided with a chamfer that matches the inclined surface of the wedge block.

[0016] In some embodiments, the height of the wedge block at a side close to the handle is lower than the height of the side away from the handle.

[0017] A second aspect of the embodiment of the present application provides a box, including:

[0018] A box body, wherein the box body is provided with a box opening, and a box cover is hingedly connected to the box opening;

[0019] A sealing ring is arranged on the outer edge of the opening of the box body.

[0020] In this embodiment, the lock handle assembly is arranged on the box cover;

[0021] One end of the connecting head with a bolt hole penetrates the box cover and extends out;

[0022] One end of the spring is connected to the box cover.

[0023] The beneficial effects of the technical solution provided by this application include:

[0024] When closing the box cover, first flip the box cover to make it initially closed with the box body, then turn the handle clockwise. The locking head gradually rotates under the drive of the handle and touches the wedge block and cannot rotate anymore. Then press the handle and turn it at the same time until the height of the locking head is higher than the wedge block and the handle can be turned. Then turn the handle again to move the locking head to the inclined surface of the wedge block. Then, through the cooperation of the locking head and the inclined surface on the wedge block, the box cover is gradually pressed against the sealing ring between the box body. When the locking head enters the groove on the wedge block and is locked in place, the handle will instantly feel loose.

[0025] When opening the box lid, you need to first press the handle so that the height of the lock tongue is the same as the height of the wedge block, then turn the handle counterclockwise to make the locking head slide out of the groove of the wedge block, and then continue to turn the handle to gradually separate the locking head from the wedge block until the box lid can be opened smoothly.

[0026] The locking head is clamped in the groove, so that the box cover and the box body can be locked, so that the locking head will be limited by the groove when it is vibrated, and the elastic force of the spring will keep the locking head pressed in the groove to prevent it from moving out of the groove, so as to prevent the box cover and the box body from being easily unhooked when they are vibrated or impacted, causing the box to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A three-dimensional schematic diagram provided for an embodiment of the present application;

[0029] Figure 2 A schematic diagram of a locking state provided in an embodiment of the present application;

[0030] Figure 3 An exploded schematic diagram of the locking mechanism provided in the embodiment of the present application;

[0031] Figure 4 A schematic front view of a wedge block provided in an embodiment of the present application;

[0032] Figure 5 A three-dimensional schematic diagram of the box body, box cover and handle provided in the embodiment of the present application;

[0033] 1. Box cover; 2. Box body; 7. Sealing ring; 8. Handle; 81. Handle; 82. Connector; 9. Spring; 10. Wedge block; 101. Groove; 11. Locking head; 111. Fixing sleeve; 112. Lock tongue; 15. Bolt. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0035] The embodiment of the present application provides a sealing and locking device for a box body and a box cover, and a box body, which can solve the problems that the box is easily unhooked when subjected to vibration and impact, causing the box to open, and the sealing effect is poor when locked.

[0036] In order to facilitate understanding, a sealing and locking device for a box body and a box cover provided in the first aspect of the present application will be described in conjunction with the structural features of a box body 2 and a box cover 1 in a box body provided in the second aspect.

[0037] See also Figure 1-5 As shown, the first aspect of the embodiment of the present application provides a sealing and locking device for a box body and a box cover, comprising:

[0038] The locking mechanism includes a wedge block 10 and a lock handle assembly that can be moved by rotation and clamped on the wedge block 10.

[0039] A groove 101 is provided on the wedge block 10. The wedge block 10 is a block with an inclined surface. The groove 101 is provided on the wedge block 10 and is located away from the lowest height of its inclined surface. The lock handle assembly includes a handle 8, a locking head 11 connected to the handle 8, and a spring 9 arranged on the handle 8. The locking head 11 is driven by the handle 8 to be engaged in the groove 101.

[0040] The handle 8 is arranged on the box cover 1, and the wedge block 10 is arranged on the box body 2. The handle 8 is turned to make the locking head 11 slide into the groove 101 of the wedge block 10. The spring 9 is sleeved on the handle 8. When locking is required, the handle 8 is first pressed to move the handle 8 toward the box body 2 until the locking head 11 passes the lowest point of the wedge block 10. When the handle 8 is pressed, the spring 9 is expanded, and then the handle 8 is turned to make the locking head 11 move in contact with the surface of the wedge block 10 until the locking head 11 moves into the groove 101 through the rotation of the handle 8. , and then release the handle 8, the spring 9 retracts by elastic force, so that the locking head 11 is clamped in the groove 101, and the box cover 1 and the box body 2 are locked, and the inclined surface of the wedge block 10 can make the box cover 1 and the box body 2 pressed against each other by the spring 9, and the locking head 11 will be limited by the groove 101 when it is vibrated, and the elastic force of the spring 9 will make the locking head 11 continue to be pressed in the groove 101 to prevent it from moving out of the groove 101, which can prevent the box cover 1 and the box body 2 from being easily unhooked when they are vibrated and impacted, causing the box to open.

[0041] The bottom height of the groove 101 is higher than the lowest height of the wedge block 10 , so that the locking head 11 still exerts a pulling force on the spring 9 after being inserted into the groove 101 , and the spring 9 can drive the box cover 1 to be pressed against the box body 2 .

[0042] In this embodiment, the height of the side of the wedge block 10 close to the handle 8 is lower than the height of the side away from the handle 8 .

[0043] When the locking head 11 rotates with the rotation of the handle 8, it first contacts the lower side of the wedge block 10, and then gradually rises along the inclined surface of the wedge block 10 until it moves to the position of the groove 101 and is engaged in the groove 101. The setting of the inclined surface prevents the height of the locking head 11 located in the groove 101 from exceeding the wedge block 10, so that it is easy to slide out when hit by a collision, causing the box cover 1 and the box body 2 to separate. After the locking head 11 is connected to the wedge block 10 by the setting of the inclined surface, the spring 9 is not completely retracted so that it still has a pulling force to press the box cover 1 and the box body 2 together.

[0044] In some optional embodiments, see Figure 1-3As shown, in the sealing locking device for the box body and the box cover, the lock handle mechanism also includes a bolt 15 for fixing the locking head 11 and the spring 9 on the handle 8.

[0045] In this embodiment, the handle 8 includes a grip 81 and a connector 82 disposed on the grip 81 . A bolt hole is provided at one end of the connector 82 away from the grip 81 . The end of the connector 82 with the bolt hole penetrates the box cover 1 and extends out.

[0046] In this embodiment, the bolt 15 is connected to the bolt hole of the connecting head 82 .

[0047] When the spring 9 and the locking head 11 are installed on the connecting head 82, the bolt 15 is tightened in the bolt hole. The diameter of the end of the bolt 15 can preferably be larger than the diameter of the locking head 11, so that the locking head 11 and the spring 9 can be restricted on the connecting head 82, and the locking head 11 and the spring 9 cannot fall off. A gasket and a retaining ring can also be arranged between the bolt 15 and the locking head 11. The diameter of the gasket and the retaining ring is larger than the diameter of the locking head 11, and the locking head 11 can also be limited to prevent it from slipping out and falling.

[0048] In some optional embodiments, see Figure 1-3 As shown, in the sealing locking device of the box body and the box cover, the locking head 11 is arranged on the protruding end of the connecting head 82, and the locking head 11 includes a fixing sleeve 111 and a locking tongue 112 arranged on the outer side of the fixing sleeve 111, and the fixing sleeve 111 is sleeved on the outer side of the connecting head 82.

[0049] The fixing sleeve 111 and the connecting head 82 are snap-fitted, and a plurality of snap-fitting strips are arranged at equal intervals around the axis on the connecting head 82. A snap-fitting groove that matches the snap-fitting strip is opened on the inner wall of the fixing sleeve 111. When the fixing sleeve 111 slides in from the end of the connecting head 82, the snap-fitting strip is snap-fitted with the snap-fitting groove, so that the fixing sleeve 111 can be prevented from rotating on its own, and the fixing sleeve 111 can be snapped on the connecting head 82 and rotate synchronously with the connecting head 82.

[0050] In this embodiment, the spring 9 is sleeved on the outside of the connecting head 82 and is located between the locking head 11 and the box cover 1. One end of the spring 9 is fixedly connected to the connecting head 82 near the locking head 11, and the other end of the spring 9 is fixedly connected to the box cover 1, so that the spring 9 can drive the box cover 1 to press on the box body 2.

[0051] When the handheld handle 81 is pushed toward the box body 2, the spring 9 will be extended. When the locking head 11 and the wedge block 10 are engaged with each other, the handle 81 is released, and the handle 8 can be retracted by the elasticity of the spring 9, so that the locking head 11 is stuck in the groove 101.

[0052] In some optional embodiments, see Figure 1-4As shown, in the sealing and locking device for the box body and the box cover, a chamfer that matches the inclined surface of the wedge block 10 is provided on the side of the locking tongue 112 close to the box cover 1 .

[0053] The chamfered locking tongue 112 makes it easier for the locking head 11 to slide into the groove 101 of the wedge block 10, thereby preventing the angular locking tongue 112 from contacting the inclined surface of the wedge block 10, thereby increasing the friction during sliding and easily damaging the locking tongue 112.

[0054] See also Figure 1-2 and Figure 5 As shown, the second aspect of the embodiment of the present application provides a box, including:

[0055] The box body 2 is provided with a box opening, a box cover 1 is hinged on the box opening, and a sealing ring 7 is arranged on the outer edge of the opening of the box body 2.

[0056] Through the cooperation between the locking head 11 and the inclined surface of the wedge block 10, when the locking tongue 112 of the locking head 11 continues to rise with the inclined surface of the wedge block 10, the box cover 1 and the box body 2 can be gradually pressed together, and the sealing ring 7 between the box cover 1 and the box body 2 is also continuously pressed together to reduce the gap between the sealing ring 7 and the box body 2 and the box cover 1, so that the sealing ring 7 can be sealed more tightly and the sealing effect is better.

[0057] In this embodiment, the wedge block 10 is disposed at the opening of the box body 2 , and the wedge block 10 is fixed on a frame at the opening of the box body 2 .

[0058] In this embodiment, one end of the connecting head 82 with a bolt hole passes through the box cover 1 and extends out, and one end of the spring 9 is connected to the box cover 1 .

[0059] Working principle and process of this application:

[0060] When closing the box cover 1, first flip the box cover 1 to make it initially closed with the box body 2, then turn the handle 8 clockwise, and the locking head 11 gradually rotates under the drive of the handle 81 and touches the wedge block 10 and cannot rotate, then press the handle 8 and turn it at the same time until the locking head 11 is located at a position where its height is higher than the wedge block 10 and the handle 8 can be rotated. When the locking tongue 112 of the locking head 11 continues to rise with the inclined surface of the wedge block 10, the box cover 1 and the box body 2 can be gradually pressed together, and the sealing ring 7 between the box cover 1 and the box body 2 is also continuously pressed to reduce the gap between the sealing ring 7 and the box body 2 and the box cover 1. When the locking head 11 enters the groove 101 on the wedge block 10 and is locked in place, the handle 81 will instantly feel loose.

[0061] When opening the box cover 1, it is necessary to first press the handle 8 to make the height of the locking tongue 112 the same as the height of the wedge block 10, and then rotate the handle 81 counterclockwise to make the locking head 11 slide out of the groove 101 of the wedge block 10, and then continue to rotate the handle 81 to gradually separate the locking head 11 from the wedge block 10 until the box cover 1 can be opened smoothly.

[0062] By clamping the locking head 11 in the groove 101, the box cover 1 and the box body 2 can be locked, so that the locking head 11 will be limited by the groove 101 when subjected to vibration, and the elastic force of the spring 9 will keep the locking head 11 pressed tightly in the groove 101 to prevent it from moving out of the groove 101, so as to prevent the box cover 1 and the box body 2 from being easily unhooked when subjected to vibration and impact, causing the box to open.

[0063] When the locking head 11 rotates with the rotation of the handle 8, it first contacts the lower side of the wedge block 10, and then gradually rises along the inclined surface of the wedge block 10 until it moves to the position of the groove 101 and is engaged in the groove 101. The inclined surface is set to prevent the locking head 11 from exceeding the wedge block 10, so that it is easy to slide out when hit by a collision, causing the box cover 1 and the box body 2 to separate.

[0064] After the spring 9 and the locking head 11 are installed on the connecting head 82, the bolt 15 is tightened in the bolt hole. By taking advantage of the fact that the diameter of the end of the bolt 15 is larger than the diameter of the locking head 11, the locking head 11 and the spring 9 can be restricted on the connecting head 82, so that the locking head 11 and the spring 9 cannot fall off.

[0065] The chamfered locking tongue 112 makes it easier for the locking head 11 to slide into the groove 101 of the wedge block 10, thereby preventing the edges of the angular locking tongue 112 from fitting onto the inclined surface of the wedge block 10 when the angular locking tongue 112 contacts the inclined surface, thereby increasing the friction during sliding and easily damaging the locking tongue 112. It also prevents the angular locking tongue 112 from being too low in height and having no guiding sliding effect when the box cover 1 is opened, thereby making it difficult to return to the inclined surface of the wedge block 10.

[0066] Through the cooperation between the locking head 11 and the inclined surface of the wedge block 10, the box cover 1 gradually presses the sealing ring 7 between the box body 2, so that the sealing ring 7 can be sealed more tightly and the sealing effect is better.

[0067] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0068] It should be noted that, in this application, relational terms such as "first" and "second" 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0069] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A sealing and locking device for a box body and a box cover, characterized in that: include: A locking mechanism, the locking mechanism comprising a wedge block (10) and a lock handle assembly that can be snap-connected to the wedge block (10); The wedge block (10) is provided with a groove (101), and the lock handle assembly comprises a handle (8), a locking head (11) connected to the handle (8), and a spring (9) arranged on the handle (8), wherein the locking head (11) is driven by the handle (8) to be engaged in the groove (101).

2. The sealing and locking device for a box body and a box cover according to claim 1, characterized in that: The locking mechanism also includes a bolt (15) for fixing the locking head (11) and the spring (9) on the handle (8).

3. The sealing and locking device for a box body and a box cover according to claim 2, characterized in that: The handle (8) comprises a grip (81) and a connecting head (82) arranged on the grip (81); a bolt hole is provided at one end of the connecting head (82) away from the grip (81).

4. The sealing and locking device for a box body and a box cover as claimed in claim 3, characterized in that: The bolt (15) is connected to the bolt hole of the connecting head (82).

5. The sealing and locking device for a box body and a box cover as claimed in claim 3, characterized in that: The locking head (11) is arranged on the connecting head (82); The locking head (11) comprises a fixing sleeve (111) and a locking tongue (112) arranged on the outer side of the fixing sleeve (111); The fixing sleeve (111) is sleeved on the outside of the connecting head (82).

6. The sealing and locking device for a box body and a box cover as claimed in claim 3, characterized in that: The spring (9) is sleeved on the outside of the connecting head (82).

7. The sealing and locking device for a box body and a box cover according to claim 5, characterized in that: The locking tongue (112) is provided with a chamfer that matches the inclined surface of the wedge block (10).

8. The sealing and locking device for a box body and a box cover according to claim 1, characterized in that: The height of the side of the wedge-shaped block (10) close to the handle (8) is lower than the height of the side away from the handle (8).

9. A box body, the box body using the sealing and locking device for the box body and the box cover according to any one of claims 1 to 8, characterized in that: include: The box body (2) is provided with a box opening, and a box cover (1) is hingedly connected to the box opening; A sealing ring (7) is provided on the outer edge of the opening of the box body (2).

10. The box body according to claim 9, characterized in that: The wedge-shaped block (10) is arranged at the opening of the box body (2); The lock handle assembly is arranged on the box cover (1); One end of the connecting head (82) having a bolt hole penetrates the box cover (1) and extends out; One end of the spring (9) is connected to the box cover (1).

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