Lock catch structure for covering cap or box

Abstract

The utility model relates to a lock catch structure for a covering cap or a box, which belongs to the technical field of lock catches and comprises a bottom plate, a connecting frame arranged at the top of the bottom plate, a hook arranged at the bottom of the connecting frame, avoidance holes arranged on the front and the back of the connecting frame, a hanging ring arranged outside the connecting frame and extending into the hook. The two ends of the hanging ring penetrate through the two receding holes correspondingly and extend into the connecting frame, a connecting rod is fixedly connected into the connecting frame and penetrates through the bottom plate, and a fixing block is fixedly connected to the top face of the bottom plate. According to the lock catch structure for the covering cap or the box, the hanging rings and the hooks are distributed in a vertical state, the box cover can be tightly buckled, a sealing ring is tightly pressed, the sealing effect is improved only by pressing vertical stress, the connecting frame is conveniently fixed to the bottom plate through attachment between the fixing groove and the fixing block, operation of a user is facilitated, and the use effect is improved. And self-locking is realized only by pushing the connecting frame, so that the device is more convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock structure for a lid or a box. Background Art

[0002] A flap refers to anything with a mouth that can serve as a cover. All covers may be called flaps. A box refers to a square container used to store various things. It can be made of wood, plastic, leather, etc. The detailed explanation is: a square device with a bottom cover for storing objects, which is composed of a lid and a box body. A lock is an object used to fasten two items, generally consisting of a movable part and a fixed part. Existing large flaps and boxes are generally fixed between the movable part and the fixed part by locks.

[0003] Sealing rings are placed between the fixed and movable parts of the flap and the box to seal the joints. However, when the existing lock is in use, the movable and fixed parts are in a horizontal state, which easily leads to insufficient pressing force, making the joints not tight enough and reducing the sealing effect. Therefore, a lock structure for a flap or a box is proposed to solve the above problems. Utility Model Content

[0004] In response to the deficiencies of the prior art, the present invention provides a lock structure for a lid or a box, which has the advantage of improving the sealing effect and solves the problem that when the existing lock is in use, the movable part and the fixed part are in a horizontal state, which easily leads to insufficient pressing force, making the connection not tight enough and reducing the sealing effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a locking structure for a lid or a box, comprising a bottom plate, a connecting frame placed on the top of the bottom plate, a hook placed on the bottom of the connecting frame, and clearance holes opened on the front and back of the connecting frame.

[0006] A hanging ring is placed on the outside of the connecting frame, and the hanging ring extends to the inside of the hook. The two ends of the hanging ring respectively pass through two makeshift holes and extend to the inside of the connecting frame. The inside of the connecting frame is fixedly connected to a connecting rod, and the connecting rod passes through the bottom plate. The top surface of the bottom plate is fixedly connected to a fixing block. The top surface of the hook is provided with two connecting holes, and the top surface of the bottom plate is provided with two positioning holes.

[0007] The connecting frame is provided with a fixing assembly for fixing the connecting frame.

[0008] Furthermore, the two ends of the hanging ring are respectively fitted with two clearance holes, and the connecting frame is a U-shaped frame.

[0009] Furthermore, a mounting hole is provided on the bottom plate, and the connecting rod passes through the mounting hole and is loosely fitted therein.

[0010] Furthermore, the fixing assembly includes a lock tongue, which is placed at the front of the connecting frame, and a giveway groove is provided on the front of the connecting frame. The lock tongue passes through the giveway groove and extends to the interior of the connecting frame. A card slot is provided on the inner top wall of the connecting frame. The bottom surface of the lock tongue is movably connected to a bolt with one end passing through the lock tongue and extending to the inside of the card slot. A fixing groove is provided on the left side of the lock tongue, and the fixing block extends to the inside of the fixing groove. A connecting groove is provided on the bottom surface of the lock tongue, and the connecting groove is located at the back of the fixing groove. The back of the lock tongue is fixedly connected to two limiting rods, one end of which passes through the connecting frame and extends to its back side. The outer peripheral walls of the two limiting rods are respectively fitted with springs that fit the connecting frame and the lock tongue.

[0011] Furthermore, the lock tongue is an L-shaped plate, the connecting groove is a bevel groove, the fixing groove and the connecting groove are connected, the fixing block and the fixing groove are fitted together, the lock tongue and the clearance groove are slidably connected, and the bolt and the slot are slidably connected.

[0012] Furthermore, two through holes are provided on the back of the connecting frame, and the two connecting rods pass through the two through holes respectively and are clearance-matched therewith. A threaded hole is provided on the top surface of the locking tongue, and the bolt passes through the threaded hole and is threadedly connected therewith.

[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0014] The lock structure for the lid or box is distributed in a vertical state through the hanging ring and the hook, which can press tightly with vertical force to ensure that the box lid is fastened, compress the sealing ring, and improve the sealing effect. The connection frame is conveniently fixed to the bottom plate through the fit between the fixing groove and the fixing block, which is convenient for users to operate. And only the connection frame needs to be pushed to achieve self-locking, which is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a top view of the internal structure of the connecting frame in the structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the left side of the structure of the utility model;

[0018] Figure 4 It is a bottom view schematic diagram of the connecting frame in the structure of the present utility model.

[0019] In the figure: 1 hook, 2 hanging ring, 3 connecting frame, 4 clearance hole, 5 bottom plate, 6 locking tongue, 7 clearance slot, 8 connecting rod, 9 connecting hole, 10 limiting rod, 11 spring, 12 bolt, 13 fixing slot, 14 fixing block, 15 positioning hole, 16 card slot, 17 connecting slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 In this embodiment, a locking structure for a lid or a box includes a bottom plate 5, a connecting frame 3 is placed on the top of the bottom plate 5, a hook 1 is placed on the bottom of the connecting frame 3, and a clearance hole 4 is opened on the front and back of the connecting frame 3.

[0022] A hanging ring 2 is placed on the outside of the connecting frame 3, and the hanging ring 2 extends to the inside of the hook 1. The two ends of the hanging ring 2 respectively pass through the two makeshift holes 4 and extend to the inside of the connecting frame 3. The inside of the connecting frame 3 is fixedly connected to a connecting rod 8, and the connecting rod 8 passes through the bottom plate 5. The top surface of the bottom plate 5 is fixedly connected to a fixing block 13. The top surface of the hook 1 is provided with two connecting holes 9, and the top surface of the bottom plate 5 is provided with two positioning holes 15.

[0023] The two ends of the hanging ring 2 are respectively fitted with the two clearance holes 4, the connecting frame 3 is a U-shaped frame, the bottom plate 5 is provided with a mounting hole, and the connecting rod 8 passes through the mounting hole and fits with the mounting hole.

[0024] Specifically, the hook 1 is fixed to the box body by passing the connecting hole 9 through the screw, and the bottom plate 5 is fixed to the box cover by passing the positioning hole 15 through the screw, and then the hanging ring 2 is pushed. The clearance between the hanging ring 2 and the clearance hole 4 is matched to make the hanging ring 2 rotate, so that the hanging ring 2 and the hook 1 fit together, and the right side of the connecting frame 3 is pressed down. Under the action of the connecting rod 8, the connecting frame 3 is flipped to the right, and the connecting frame 3 is fixed to the bottom plate 5, thereby fixing the box cover and the box body. At this time, the hook 1 and the connecting frame 3 are in a vertical state, which increases the clamping force. Similarly, the hook 1 and the bottom plate 5 are fixed to the cover body and the cover plate respectively to fix the cover body and the cover plate.

[0025] In this embodiment, a fixing component is provided on the connecting frame 3, and the fixing component includes a lock tongue 6, which is placed at the front of the connecting frame 3. A clearance groove 7 is provided on the front of the connecting frame 3. The lock tongue 6 passes through the clearance groove 7 and extends to the inside of the connecting frame 3. A card slot 16 is provided on the inner top wall of the connecting frame 3. The bottom surface of the lock tongue 6 is movably connected to a bolt 12 with one end passing through the lock tongue 6 and extending to the inside of the card slot 16. A fixing groove 13 is provided on the left side of the lock tongue 6. The fixing block 14 extends to the inside of the fixing groove 13. A connecting groove 17 is provided on the bottom surface of the lock tongue 6. The connecting groove 17 is located on the back of the fixing groove 13. The back of the lock tongue 6 is fixedly connected with two limit rods 10, one end of which passes through the connecting frame 3 and extends to its back. The outer peripheral walls of the two limit rods 10 are respectively fitted with springs 11 that fit the connecting frame 3 and the lock tongue 6.

[0026] Among them, the lock tongue 6 is an L-shaped plate, the connecting groove 17 is a bevel groove, the fixing groove 13 and the connecting groove 17 are connected, the fixing block 14 and the fixing groove 13 are fitted together, the lock tongue 6 and the give way groove 7 are slidably connected, the bolt 12 and the card slot 16 are slidably connected, and two through holes are opened on the back of the connecting frame 3. The two connecting rods 8 pass through the two through holes respectively and match with the clearance therebetween. A threaded hole is opened on the top surface of the lock tongue 6, and the bolt 12 passes through the threaded hole and is threadedly connected with it.

[0027] When the bolt 12 is turned, the bolt 12 passes through the latch 6 and enters the inner part of the card slot 16, and the latch 6 is restricted on the connecting frame 3, and the latch 6 is restricted. The right side of the connecting frame 3 is pressed downward, and the connecting frame 3 is tilted to the right side, and the fixing block 14 and the latch 6 are fitted together, and the fixing block 14 and the connecting slot 17 are fitted together. The friction force generated between the two pushes the latch 6 to move, squeezing the spring 11, thereby fitting the fixing block 14 and the fixing slot 13, and the latch 6 is pushed by the elastic force of the spring 11 to fit the latch 6 and the fixing block 14, and the connecting frame 3 is fixed. When the fixation needs to be cancelled, the latch 6 is pushed, and the latch 6 moves, thereby making the fixing block 14 disengage from the fixing slot 13, canceling the fixation of the connecting frame 3, and then supporting the latch 6 through the sliding connection between the bolt 12 and the connecting slot 17, thereby improving the stability of the latch 6.

[0028] The working principle of the above embodiment is:

[0029] Push the lock tongue 6, the lock tongue 6 passes through the yield groove 7 and enters the interior of the connecting frame 3, the limiting rod 10 passes through the through hole and is located on the back of the connecting frame 3, turn the bolt 12, the bolt 12 passes through the lock tongue 6 and enters the interior of the card slot 16, restricting the lock tongue 6 on the connecting frame 3, restricting the lock tongue 6, the hook 1 is fixed to the box body by screws through the connecting hole 9, and the bottom plate 5 is fixed to the box cover by screws through the positioning hole 15, and then push the hanging ring 2, through the clearance between the hanging ring 2 and the yield hole 4, the hanging ring 2 is rotated, the hanging ring 2 and the hook 1 are fitted together, press the right side of the connecting frame 3 downward, and under the action of the connecting rod 8, the connecting frame 3 is flipped to the right, so that the fixing block 14 and the lock tongue 6 are fitted together, and the fixing block 14 and the connecting groove 17 are fitted together, and the two The friction force generated between them pushes the lock tongue 6 to move, squeezes the spring 11, and thus makes the fixing block 14 fit into the fixing groove 13. The lock tongue 6 is pushed by the elastic force of the spring 11, so that the lock tongue 6 and the fixing block 14 fit into the connecting frame 3, and then the box cover and the box body are fixed. At this time, the hook 1 and the connecting frame 3 are in a vertical state, which increases the clamping force. Similarly, the hook 1 and the bottom plate 5 are fixed to the cover body and the cover plate respectively to fix the cover body and the cover plate. When the fixation needs to be canceled, the lock tongue 6 is pushed, and the lock tongue 6 moves, thereby making the fixing block 14 disengage from the fixing groove 13, canceling the fixation of the connecting frame 3, and then supporting the lock tongue 6 through the sliding connection between the bolt 12 and the connecting groove 17, thereby improving the stability of the lock tongue 6.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking structure for a lid or a box, comprising a bottom plate (5), characterized in that: A connecting frame (3) is placed on the top of the bottom plate (5), a hook (1) is placed on the bottom of the connecting frame (3), and a clearance hole (4) is provided on the front and back of the connecting frame (3); A hanging ring (2) is placed on the outside of the connecting frame (3), and the hanging ring (2) extends to the inside of the hook (1). The two ends of the hanging ring (2) respectively pass through two clearance holes (4) and extend to the inside of the connecting frame (3). The inside of the connecting frame (3) is fixedly connected with a connecting rod (8), and the connecting rod (8) passes through the bottom plate (5). The top surface of the bottom plate (5) is fixedly connected with a fixing block (13). The top surface of the hook (1) is provided with two connecting holes (9), and the top surface of the bottom plate (5) is provided with two positioning holes (15). The connecting frame (3) is provided with a fixing assembly for fixing the connecting frame (3).

2. A lock structure for a lid or a box according to claim 1, characterized in that: The two ends of the hanging ring (2) are respectively clearance-matched with the two clearance holes (4), and the connecting frame (3) is a U-shaped frame.

3. A locking structure for a lid or a box according to claim 2, characterized in that: A mounting hole is provided on the bottom plate (5), and the connecting rod (8) passes through the mounting hole and is clearance-matched with the mounting hole.

4. The lock structure for a lid or a box according to claim 1, characterized in that: The fixing assembly includes a locking tongue (6), the locking tongue (6) is placed on the front of the connecting frame (3), a clearance groove (7) is provided on the front of the connecting frame (3), the locking tongue (6) passes through the clearance groove (7) and extends to the inside of the connecting frame (3), the inner top wall of the connecting frame (3) is provided with a card slot (16), the bottom surface of the locking tongue (6) is movably connected to a bolt (12) having one end passing through the locking tongue (6) and extending to the inside of the card slot (16), and the left side of the locking tongue (6) is provided with a fixed The fixing block (14) extends to the inside of the fixing groove (13); the bottom surface of the locking tongue (6) is provided with a connecting groove (17); the connecting groove (17) is located at the back of the fixing groove (13); the back of the locking tongue (6) is fixedly connected with two limiting rods (10) with one end both of which pass through the connecting frame (3) and extend to the back thereof; the outer peripheral walls of the two limiting rods (10) are both provided with springs (11) respectively fitted with the connecting frame (3) and the locking tongue (6).

5. The lock structure for a lid or a box according to claim 4, characterized in that: The locking tongue (6) is an L-shaped plate, the connecting groove (17) is a bevel groove, the fixing groove (13) and the connecting groove (17) are connected, the fixing block (14) and the fixing groove (13) are fitted together, the locking tongue (6) and the clearance groove (7) are slidably connected, and the bolt (12) and the clamping groove (16) are slidably connected.

6. A lock structure for a lid or a box according to claim 5, characterized in that: The back of the connecting frame (3) is provided with two through holes, the two connecting rods (8) respectively pass through the two through holes and are clearance-matched therewith, the top surface of the locking tongue (6) is provided with a threaded hole, the bolt (12) passes through the threaded hole and is threadedly connected therewith.

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