A luggage lock

Abstract

The utility model discloses a special lock for luggage, including connecting block, base plate, coded lock and hand handle, connecting block installs on the first half box of luggage, base plate bottom has the installation slot hole, and base plate is connected with connecting block elasticity rotation, and when through the open and close key lock connection in the closed state of luggage, the outer end of base plate bottom is equipped with the hook board, and with the hook slot position of the second half box of luggage is corresponding, the coded lock is installed in the installation slot hole, to limit the position of open and close key, and the hand handle is connected with connecting block elasticity rotation. The utility model utilizes base plate and connecting block to gather two parts of coded lock and hand handle as a whole, can improve installation efficiency, and reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of luggage lock technology, specifically a luggage lock. Background Technology

[0002] Handles and combination locks are core components of suitcases. Currently, they are generally packaged separately, meaning that they are installed independently. This requires purchasing these two types of components separately, which not only increases the assembly process by 30%, but also increases material costs by 15%-20%, increases supplier management complexity, and reduces inventory turnover by about 25%.

[0003] Therefore, providing a luggage lock that improves efficiency and reduces costs is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a special lock for suitcases, which integrates a combination lock and a handle into one unit, thereby improving installation efficiency and reducing costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A luggage lock includes a connecting block, a base plate, a combination lock, and a handle. The connecting block is installed on the first half of the luggage. The base plate has a mounting slot at its bottom and is elastically rotatably connected to the connecting block, and is locked in place by an opening / closing key when the luggage is closed. The outer bottom end of the base plate has a hook plate, which corresponds to the hook groove of the second half of the luggage. The combination lock is installed in the mounting slot to restrict the position of the opening / closing key. The handle is elastically rotatably connected to the connecting block.

[0007] By adopting the above technical solutions, the beneficial effects of this utility model are as follows:

[0008] By integrating the combination lock and handle into one unit using a base plate and connecting block, installation efficiency can be improved and costs reduced.

[0009] Furthermore, a first rotating shaft is fixed to the inner end of the bottom of the substrate, and a second rotating shaft arranged parallel to the first rotating shaft is fixed to the inner end of the connecting block. The first rotating shaft and the second rotating shaft are connected by a connecting frame and also by a double torsion spring. The opening and closing key is sleeved on the first rotating shaft and rotatably connected to it. The pressing plate of the opening and closing key extends out of the outer side of the substrate. A buckle is provided at the bottom of the opening and closing key. A slot corresponding to the buckle position is provided at the outer end of the connecting block to lock the connection when the suitcase is closed.

[0010] Furthermore, the combination lock includes a central shaft, multiple combination wheels, a pressure plate, a bolt, and a cover plate. The central shaft is fixed in the first shaft end groove of the mounting slot. The multiple combination wheels are respectively mounted on the central shaft through multiple bushings, and the multiple combination wheels extend out of multiple protrusion holes of the mounting slot. The bolt has a sliding groove on one side and a stepped groove on the other side. The bolt is placed in the mounting slot such that the limiting plate inside the key corresponds to the stepped groove. The shaft end of the pressure plate is placed in the second shaft end groove of the mounting slot, and the other end of the pressure plate is fitted into the sliding groove. The pressure plate has multiple recessed holes. The pressure plate presses against the multiple bushings so that the multiple combination wheels are located in the recessed holes. Each bushing has an indented groove. The bottom of the pressure plate has a protrusion corresponding to the multiple bushings. The cover plate covers the open end of the mounting slot and elastically presses against the multiple combination wheels and against the side of the pressure plate near the second shaft end groove.

[0011] Furthermore, the double torsion spring includes a first helical spring body, a connecting rod, and a second helical spring body connected in sequence. The first helical spring body is sleeved on the first rotating shaft, and its extended end abuts against the bottom of the base plate. The second helical spring body is sleeved on the second rotating shaft, and its extended end abuts against the top surface of the connecting block.

[0012] Furthermore, two shaft slots are provided on both sides of the bottom of the connecting block; the two shaft ends of the handle are rotatably connected to the two shaft slots respectively, and a torsion spring is sleeved on each shaft end, with one end of the torsion spring inserted and fixed inside the shaft end, and the other end of the torsion spring abutting against the bottom surface of the shaft slot.

[0013] Furthermore, the substrate is T-shaped.

[0014] Therefore, this utility model provides a special lock for suitcases, and compared with the prior art, this utility model has the following beneficial effects:

[0015] Cost optimization: Compared with the traditional solution, the procurement of two core components is reduced, the overall procurement cost is reduced by 22%, the assembly process is reduced from 5 to 3, and the labor cost is reduced by 18%.

[0016] Production improvements: The number of material types was reduced by 40%, the number of suppliers was reduced from an average of 5 to 2, and inventory management costs were reduced by 30%; due to improved component compatibility, the production qualification rate increased from 92% to 98.5%.

[0017] User experience improved: The grip comfort score increased by 25%, and the convenience of password operation was on par with the traditional design, with no loss of functionality due to the integrated design. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 The attached figure is a structural schematic diagram of the locked state of a luggage lock provided by this utility model;

[0020] Figure 2 The attached figure is a structural schematic diagram of the lock of a suitcase provided by this utility model in the locked state from another perspective;

[0021] Figure 3 The attached figure is a structural schematic diagram of the open state of a special lock for suitcases provided by this utility model;

[0022] Figure 4 The attached diagram is a structural schematic diagram of the luggage lock provided by this utility model in the open state from another perspective (handle omitted);

[0023] Figure 5 The attached figure is an exploded view of a luggage lock provided by this utility model;

[0024] Figure 6 The attached figure is an exploded view of the combination lock provided by this utility model;

[0025] Figure 7 The attached figure is an exploded view of the combination lock provided by this utility model from another perspective;

[0026] Figure 8 The attached figure is a top-view structural schematic diagram of the pressure plate provided by this utility model;

[0027] Figure 9 The attached figure is a structural schematic diagram of the cover plate provided by this utility model. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-9As shown in the figure, this utility model discloses a special lock for suitcases, including a connecting block 1, a base plate 2, a combination lock 3, and a handle 4. The connecting block 1 is installed on the first half of the suitcase (the suitcase consists of two halves, namely the first half and the second half). In this embodiment, the connecting block 1 is installed on the surface of the first half of the suitcase near the second half by screws. The base plate 2 has a mounting slot 22 at its bottom. The base plate 2 is elastically rotatably connected to the connecting block 1 and is locked in place by an opening / closing key 5 when the suitcase is closed. A hook plate 21 is provided at the outer bottom of the base plate 2, which corresponds to the hook groove position of the second half of the suitcase. The combination lock 3 is installed in the mounting slot 22 to restrict the position of the opening / closing key 5. The handle 4 is elastically rotatably connected to the connecting block 1. This utility model integrates the combination lock 3 and the handle 4 into one unit using the base plate 2 and the connecting block 1, which can improve installation efficiency and reduce costs.

[0030] Specifically, a first rotating shaft 6 is fixed to the inner bottom of the substrate 2, and a second rotating shaft 7 arranged parallel to the first rotating shaft 6 is fixed to the inner end of the connecting block 1. The first rotating shaft 6 and the second rotating shaft 7 are connected by a connecting frame 8 and a double torsion spring 9. In this embodiment, the connecting frame 8 is U-shaped. In order to limit the rotation angle of the connecting frame 8, a limiting plate is provided at the inner end of the connecting block 1 along its rotation direction. The opening and closing key 5 is sleeved on the first rotating shaft 6 and rotatably connected to it. The pressing plate 51 of the opening and closing key 5 extends out of the outer side of the substrate 2. A buckle 52 is provided at the bottom of the opening and closing key 5. A slot 11 corresponding to the position of the buckle 52 is provided at the outer end of the connecting block 1 to lock the connection when the suitcase is closed.

[0031] Specifically, the combination lock 3 includes a central shaft 31, multiple combination wheels 32, a pressure plate 33, a bolt 34, and a cover plate 35. The central shaft 31 is fixed in the first shaft end groove 221 of the mounting slot 22; the multiple combination wheels 32 are respectively mounted on the central shaft 31 through multiple bushings 36, and the multiple combination wheels 32 extend out of multiple protrusion holes 222 of the mounting slot 22; the bolt 34 has a sliding groove 341 on one side and a stepped groove 342 on the other side. The bolt 34 is placed in the mounting slot 22 such that the limiting plate 53 inside the key 5 corresponds to the stepped groove 342; the pressure plate 33... The side end of the shaft is placed in the second shaft end groove 223 of the mounting slot 22, and the other end of the pressure plate 33 is fitted into the sliding groove 341. The pressure plate 33 has multiple recessed holes 331. The pressure plate 33 is pressed onto multiple bushings 36 so that multiple password wheels 32 are located in the recessed holes 331. Each bushing 36 has an indented groove 361. The bottom of the pressure plate 33 is provided with protrusions 332 corresponding to the multiple bushings 36. The cover plate 35 is covered on the open end of the mounting slot 22 to elastically press against the multiple password wheels 32 (the elastic sheet on the cover plate 35 presses against the password wheels) and against the side of the pressure plate 33 near the second shaft end groove 223.

[0032] Specifically, the double torsion spring 9 includes a first helical spring body 91, a connecting rod 92, and a second helical spring body 93 connected in sequence. The first helical spring body 91 is sleeved on the first rotating shaft 6, and its extended end abuts against the bottom of the base plate 2. The second helical spring body 93 is sleeved on the second rotating shaft 7, and its extended end abuts against the top surface of the connecting block 1.

[0033] Specifically, two shaft slots are provided on both sides of the bottom of the connecting block 1; the two shaft ends of the handle 4 are rotatably connected to the two shaft slots respectively, and a torsion spring 10 is sleeved on either shaft end, with one end of the torsion spring 10 inserted and fixed inside the shaft end, and the other end of the torsion spring 10 abutting against the bottom end surface of the shaft slot.

[0034] To further optimize the technical solution of this utility model, the substrate 2 is T-shaped to limit the rotation position of the handle 4.

[0035] The locking and unlocking process of this utility model is as follows:

[0036] When installed on a suitcase, the connecting block 1 is installed on the first half of the suitcase with screws. The base plate 2 is pressed down so that the hook plate 21 extends into the hook groove of the second half of the suitcase and hooks and engages. At the same time, the latch 52 of the opening and closing key 5 engages with the slot 11 on the connecting block 1 to complete the locking. At this time, the password of the combination wheel 32 is incorrect. The protrusion 332 at the bottom of the pressure plate 33 abuts against the protrusion of the bushing 36. The side of the pressure plate 33 that is engaged with the slide groove 341 is pressed against the top wall of the slide groove 341 (the pressure plate 33 is in an inclined state). That is, the lock tongue 34 is in a pried-up state. Thus, the step groove 342 on the other side of the lock tongue 34 abuts against the limiting plate 53 inside the opening and closing key 5, and the opening and closing key 5 cannot rotate.

[0037] When the suitcase needs to be opened, the correct combination lock is turned. At this time, the protrusion 332 at the bottom of the pressure plate 33 corresponds to the recessed groove 361 on the bushing 36 and sinks into it. As a result, the side of the pressure plate 33 that engages with the slide groove 341 lowers by a certain height (one side of the pressure plate 33 is rotatably connected to the second shaft end groove 223 of the mounting hole 22; when the protrusion of the bushing 36 releases its pressure on the protrusion 332 of the pressure plate 33, the other side of the pressure plate 33 will lower). The height of the slide groove 341 is greater than the thickness of the pressure plate 33, so the pressure plate 33 will release its pressure on the protrusion 332 of the pressure plate 33. The sliding groove 341 abuts, that is, the locking tongue 34 is in a relaxed state. The stepped groove 342 cancels the abutting effect on the limiting plate 53 inside the opening and closing key 5. Next, press the opening and closing key 5 upward, so that the buckle 52 of the opening and closing key 5 separates from the slot 11 on the connecting block 1. Under the elastic force of the double torsion spring 9 and the rotation relationship between the first rotating shaft 6, the second rotating shaft 7 and the connecting frame 8, the base plate 2 springs open and rotates a certain angle along the second rotating shaft 7. At this time, the hook plate 21 also disengages from the hook groove, and the first half box and the second half box can be opened.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lock specifically for suitcases, characterized in that, The suitcase includes a connecting block, a base plate, a combination lock, and a handle. The connecting block is installed on the first half of the suitcase. The base plate has a mounting slot at its bottom and is elastically rotatably connected to the connecting block. When the suitcase is closed, the base plate is locked in place by an opening / closing key. The outer bottom end of the base plate has a hook plate that corresponds to the hook slot of the second half of the suitcase. The combination lock is installed in the mounting slot to restrict the position of the opening / closing key. The handle is elastically rotatably connected to the connecting block.

2. The luggage lock according to claim 1, characterized in that, A first rotating shaft is fixed to the inner bottom of the substrate, and a second rotating shaft arranged parallel to the first rotating shaft is fixed to the inner end of the connecting block. The first rotating shaft and the second rotating shaft are connected by a connecting frame and a double torsion spring. The opening and closing key is sleeved on the first rotating shaft and rotatably connected to it. The pressing plate of the opening and closing key extends out of the outer side of the substrate. A buckle is provided at the bottom of the opening and closing key. A slot corresponding to the buckle position is provided at the outer end of the connecting block to lock the connection when the suitcase is closed.

3. A luggage lock according to claim 2, characterized in that, The combination lock includes a central shaft, multiple combination wheels, a pressure plate, a bolt, and a cover plate. The central shaft is fixed in the first end groove of the mounting slot. The multiple combination wheels are respectively mounted on the central shaft through multiple bushings, and the multiple combination wheels extend out of multiple protrusion holes of the mounting slot. The bolt has a sliding groove on one side and a stepped groove on the other side. The bolt is placed in the mounting slot such that the limiting plate inside the key corresponds to the stepped groove. The shaft end of the pressure plate is placed in the second end groove of the mounting slot, and the other end of the pressure plate is fitted into the sliding groove. The pressure plate has multiple recessed holes. The pressure plate presses against the multiple bushings so that the multiple combination wheels are located in the recessed holes. Each bushing has an indented groove. The bottom of the pressure plate has a protrusion corresponding to the multiple bushings. The cover plate covers the open end of the mounting slot and elastically presses against the multiple combination wheels and against the side of the pressure plate near the second end groove.

4. A luggage lock according to claim 2, characterized in that, The double torsion spring includes a first helical spring body, a connecting rod, and a second helical spring body connected in sequence. The first helical spring body is sleeved on the first rotating shaft, and its extended end abuts against the bottom of the base plate. The second helical spring body is sleeved on the second rotating shaft, and its extended end abuts against the top surface of the connecting block.

5. A luggage lock according to claim 1, characterized in that, Two shaft slots are provided on both sides of the bottom of the connecting block; the two shaft ends of the handle are rotatably connected to the two shaft slots respectively, and a torsion spring is sleeved on each shaft end, with one end of the torsion spring inserted and fixed inside the shaft end, and the other end of the torsion spring abutting against the bottom surface of the shaft slot.

6. A luggage lock according to claim 1, characterized in that, The substrate is T-shaped.

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