A magnetic locking structure for a tubular handle

Abstract

The present invention relates to the field of locking structures, and specifically discloses a magnetic locking structure for a tubular handle, which includes a base, a handle tube, a locking part and a connecting part; the right end of the handle tube is rotatably connected to the connecting part, a sleeve is sleeved on the left end of the handle tube, a lock head is arranged inside the left end of the handle tube, a guide rail penetrating inside and outside is arranged at the left end of the handle tube, a column penetrating the guide rail is fixedly arranged inside the sleeve, the lock head is fixedly connected to the column, the guide rail is used to limit the movement track of the column, and an elastic stop is arranged inside the guide rail, and the elastic stop is used to elastically block the column with a certain elasticity when the lock head is retracted; a locking groove for accommodating the lock head is arranged on the locking part, and an attracting part is arranged at one end of the locking groove close to the left vertical plate. The present invention can stand the tubular handle up as a handrail or a walking stick, and can achieve automatic locking, with convenient use and easy disassembly.

Description

Technical Field

[0001] The present invention relates to the field of locking structures, and in particular to a magnetic locking structure for a tubular handle. Background Art

[0002] With the rapid development of production technology and consumer markets, people's requirements for personal items such as luggage have become increasingly diverse and personalized, and the alignment usage experience and functional requirements have also become more diverse. As one of the important functional components of luggage, the functional requirements and usage experience of the handle are key factors directly affecting whether this piece of luggage is beautiful and easy to use.

[0003] As one of the common types of handles, the tubular handle is applied to various suitcases or handbags. However, the existing tubular handles generally adopt a closed-loop design and do not have a structure for opening and closing the handle. In some special scenarios, users have a need to open and close the tubular handle and hope to use the handle in an upright position. The existing design is difficult to achieve this, and the commonly used locking structures have disadvantages such as cumbersome opening and closing, insecure locking, affecting aesthetics and comfort when applied in this scenario. Summary of the Invention

[0004] In order to overcome the above problems, the present invention provides a magnetic locking structure for a tubular handle.

[0005] The technical solution adopted by the present invention is: a magnetic locking structure for a tubular handle, comprising a base, a handle tube, a locking portion, and a connecting portion;

[0006] Left and right vertical plates are respectively provided at both ends of the base, the locking portion is fixedly provided at the upper end of the left vertical plate, and the connecting portion is fixedly provided at the upper end of the right vertical plate;

[0007] The right end of the handle tube is rotatably connected to the connecting portion, a sleeve is sleeved on the left end of the handle tube, a lock head is provided inside the left end of the handle tube, a guide rail penetrating inside and outside is provided at the left end of the handle tube, a column penetrating the guide rail is fixedly provided inside the sleeve, the lock head is fixedly connected to the column, the guide rail is used to limit the movement trajectory of the column, and an elastic retaining clip is provided inside the guide rail, and the elastic retaining clip is used to elastically hold the column with a certain elasticity when the lock head is retracted;

[0008] A locking groove for accommodating the lock head is provided on the locking portion. When the lock head pops out, the inner side of the sleeve cooperates with the locking portion for locking, and an attracting portion is provided at one end of the locking groove close to the left vertical plate;

[0009] At least one of the attracting portion and the lock head is a permanent magnet, the attracting portion and the lock head attract each other magnetically, and the suction force of their mutual attraction is greater than the elasticity of the elastic retaining clip blocking the column.

[0010] Preferably, a sliding groove for accommodating a lock head is provided inside the left end of the handle tube. A locking spring is provided in the sliding groove. One end of the locking spring abuts against the right end of the lock head, and the other end of the locking spring abuts against the inner wall of the sliding groove. A magnet sliding groove is provided in the locking portion, and the attracting portion is slidably disposed in the magnet sliding groove. A return pin is fixedly provided on the left side of the magnet sliding groove. Positioning magnets are provided on both sides of the locking groove.

[0011] Preferably, a rotating shaft is provided on the connecting portion in the horizontal direction, and the right end of the handle tube is rotatably connected to the connecting portion through the rotating shaft. A first limiting stop is provided inside the connecting portion, and the first limiting stop is used to limit the opening angle of the handle tube.

[0012] Preferably, a lapping portion is provided at the left end of the handle tube. The outer shape of the lapping portion matches the locking groove. A hollow cavity penetrating from left to right is provided inside the lapping portion, and the lock head penetrates through the hollow cavity.

[0013] Preferably, a first thread is provided at the left end of the locking portion, and the first thread penetrates through the upper end of the left vertical plate. A first fixing member matching the first thread is provided on the left side of the left vertical plate. A second thread is provided at the right end of the connecting portion, and the second thread penetrates through the upper end of the right vertical plate. A second fixing member matching the second thread is provided on the right side of the right vertical plate.

[0014] Preferably, a handle sleeve is sleeved outside the handle tube.

[0015] Preferably, an anti-slip portion is provided on the outer side of the barrel sleeve.

[0016] Preferably, an elastic portion is provided inside the connecting portion, and one end of the elastic portion abuts against the right end of the handle tube.

[0017] Preferably, a sliding surface matching the elastic portion is provided at the right end of the handle tube. And a second limiting stop is provided at the lower side of the right end of the handle tube, and the second limiting stop is used to limit the rotation angle of the handle tube by abutting against the elastic portion.

[0018] Preferably, limiting pins are provided on both the locking portion and the connecting portion, and through holes matching the limiting pins are provided on both the left vertical plate and the right vertical plate.

[0019] The beneficial effects of the present invention are:

[0020] (1) Through the design of the cooperation of the lock head, the barrel sleeve and the locking portion, the user can stand up the tubular handle as an armrest or a walking stick, and the locking structure is hidden inside the barrel sleeve, which is beautiful and easy to use;

[0021] (2) At least one of the attracting part and the lock head is a permanent magnet. The attracting part and the lock head attract each other magnetically, and the suction force of their mutual attraction is greater than the elasticity of the elastic retaining member blocking the upright post, so that the lock head automatically pops out after falling into the locking groove, driving the barrel sleeve and the locking part to automatically lock, realizing automatic locking and making it convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the drawings of the specification, where:

[0023] Figure 1 Schematic diagram of the open state of the tubular handle according to one embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the locked state of the tubular handle according to one embodiment of the present invention;

[0025] Figure 3 Perspective view of the lock head and the locking part according to one embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the locked state of the lock head according to another embodiment of the present invention;

[0027] Figure 5 Exploded view of the connecting part according to another embodiment of the invention;

[0028] Figure 6 Perspective view of the elastic part when the handle tube is locked according to another embodiment of the present invention;

[0029] Figure 7 Perspective view of the elastic part when the handle tube is erected according to another embodiment of the present invention;

[0030] Figure 8 Top view schematic diagram according to still another embodiment of the present invention;

[0031] Figure 9 Side perspective view of the separated state of the locking part and the barrel sleeve according to still another embodiment of the present invention;

[0032] Figure 10 Side perspective view of the locked state of the locking part and the barrel sleeve according to still another embodiment of the present invention;

[0033] Figure 11 Side perspective view of the connecting part according to still another embodiment of the present invention;

[0034] Figure 12 Exploded perspective view of the connecting part according to still another embodiment of the present invention.

[0035] In the figure: 1. Handle tube; 2. Lock head; 3. Guide rail; 4. Elastic retaining clip; 5. Locking part; 6. Attracting part; 7. Left vertical plate; 8. First thread; 9. First fixing part; 10. Column; 11. Sleeve; 12. Second thread; 13. Second fixing part; 14. First limit retaining clip; 15. Right vertical plate; 16. Rotating shaft; 17. Connecting part; 18. Handle grip; 19. Base; 20. Elastic part; 21. Limit pin; 22. Return nail; 23. Locking spring; 24. Magnet chute; 25. Positioning magnet; 26. Second limit retaining clip; 27. Adjusting part. Detailed implementation manner

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] See Figures 1 to 3 , which is one of the embodiments of the present invention, specifically discloses a magnetic locking structure for a tubular handle, including a base 19, a handle tube 1, a locking part 5 and a connecting part 17; wherein, the base 19 can be either the hard outer surface of a luggage or a hard board hidden inside the soft outer surface.

[0038] Left vertical plate 7 and right vertical plate 15 are respectively provided at both ends of the base 19, the locking part 5 is fixedly arranged at the upper end of the left vertical plate 7, and the connecting part 17 is fixedly arranged at the upper end of the right vertical plate 15.

[0039] The right end of the handle tube 1 is rotatably connected to the connecting part 17, a sleeve 11 is sleeved on the left end of the handle tube 1, a lock head 2 is arranged inside the left end of the handle tube 1, a guide rail 3 penetrating inside and outside is arranged at the left end of the handle tube 1, a column 10 penetrating the guide rail 3 is fixedly arranged inside the sleeve 11, the lock head 2 is fixedly connected to the column 10, the guide rail 3 is used to limit the movement track of the column 10, an elastic retaining clip 4 is arranged inside the guide rail 3, and the elastic retaining clip 4 is used to elastically hold the column 10 with a certain elasticity when the lock head 2 is retracted; a locking groove for accommodating the lock head 2 is arranged on the locking part 5. When the lock head 2 pops out, the inner side of the sleeve is cooperatively locked with the locking part, and an attracting part 6 is arranged at one end of the locking groove close to the left vertical plate 7; at least one of the attracting part 6 and the lock head 2 is a permanent magnet, the attracting part 6 and the lock head 2 attract each other magnetically, and the attracting force between them is greater than the resistance of the elastic retaining clip 4 to block the column 10.

[0040] At least one of the attracting portion 6 and the lock head 2 is a permanent magnet. The attracting portion 6 and the lock head 2 are magnetically attracted to each other, and the suction force of their mutual attraction is greater than the elasticity of the elastic retaining clip 4 blocking the column 10, so that the lock head 2 automatically pops out after falling into the locking groove, driving the barrel sleeve and the locking portion 5 to automatically lock, realizing automatic locking and being convenient to use.

[0041] When this embodiment is in use, it is divided into the locked state of the handle tube 1 and the locking portion 5. At this time, the handle tube 1 functions as a handle similar to that of a conventional luggage. And the state where the handle tube 1 is detached from the locking portion 5 and stands up. At this time, the handle tube 1 stands on the luggage and can function as a pull rod, a handrail, a cane, etc.

[0042] When the handle tube 1 needs to be locked with the locking portion 5, the user puts down the tubular handle until its lock head 2 aligns with the locking portion 5. At this time, the attracting portion 6 and the lock head 2 attract each other, driving the column 10 to slide forward in the guide rail 3 out of the restriction of the elastic retaining clip 4. At the same time, the barrel sleeve 11 slides forward to sleeve the locking portion 5. Thus, under the suction force of the attracting portion 6 and the lock head 2, the barrel sleeve 11 and the locking portion 5 are locked with each other.

[0043] When the handle tube 1 needs to be detached from the locking portion 5 and stand up, the user pulls the barrel sleeve 11 backward, so that the barrel sleeve 11 is detached from the locking portion 5, and at the same time drives the column 10 to slide backward in the guide rail 3 until it is blocked by the elastic retaining clip 4, and the attracting portion 6 and the lock head 2 are separated from each other; at this time, the handle tube 1 is lifted, and the attracting portion 6 and the lock head 2 are far away from each other and no longer provide attraction. The barrel sleeve 11 is fixed in the open state because the column 10 is blocked by the elastic retaining clip 4.

[0044] Preferably, a rotating shaft 16 is provided on the connecting portion 17 along the horizontal direction, and the right end of the handle tube 1 is rotatably connected to the connecting portion 17 through the rotating shaft 16; the rotating shaft 16 is used to limit the handle tube 1 to rotate only along the vertical direction.

[0045] Preferably, a first limiting retaining clip 14 is provided inside the connecting portion 17, and the first limiting retaining clip 14 is used to limit the opening angle of the handle tube 1. In this embodiment, the maximum angle for the handle tube 1 to rotate upward along the vertical direction is limited to 90 degrees.

[0046] See Figure 4 and Figure 5 As another embodiment of the present invention, the difference from the above embodiment is that a lapping portion is provided at the left end of the handle tube 1. The outer shape of the lapping portion matches the locking groove. A hollow cavity penetrating through left and right is provided inside the lapping portion, and the lock head 2 penetrates through the hollow cavity.

[0047] The left end of the locking part 5 is provided with a first thread 8, the first thread 8 penetrates through the upper end of the left vertical plate 7, and a first fixing part 9 matching with the first thread 8 is arranged on the left side of the left vertical plate 7; the right end of the connecting part 17 is provided with a second thread 12, the second thread 12 penetrates through the upper end of the right vertical plate 15, and a second fixing part 13 matching with the second thread 12 is arranged on the right side of the right vertical plate 15. The locking part 5 is locked on the left vertical plate 7 by the cooperation of the first thread 8 and the first fixing part 9; the connecting part 17 is locked on the right vertical plate 15 by the cooperation of the second thread 12 and the second fixing part 13.

[0048] Preferably, a handle sleeve 18 is sleeved outside the handle tube 1 for anti-slip or improving the comfort of holding the handle tube 1.

[0049] Preferably, an anti-slip part is arranged outside the barrel sleeve 11, and the anti-slip part is one or any combination of a high-friction sleeve or coating such as rubber, protrusions, and grooves, and the anti-slip part functions to increase the friction force so that the user can hold and slide the barrel sleeve 11 well, thereby unlocking the handle tube 1.

[0050] See Figure 6 and Figure 7 As another embodiment of the present invention, an elastic part 20 is arranged in the connecting part 17, and one end of the elastic part 20 abuts against the right end of the handle tube 1; a sliding surface matching with the elastic part 20 is arranged at the right end of the handle tube 1. The sliding surface is a surface combining a continuous arc surface and a plane, and the sliding surface and the matching elastic part 20 are used to keep the handle tube 1 at the erected angle by elastically squeezing the sliding surface when the handle tube 1 is erected and lowered.

[0051] The first limit stop 14 in this embodiment limits the maximum angle of the handle tube 1 rotating upward in the vertical direction to 110 degrees.

[0052] See Figures 8 to 12 As another embodiment of the present invention, different from the above embodiment, a sliding groove for accommodating the lock head 2 is arranged inside the left end of the handle tube 1, a locking spring 23 is arranged in the sliding groove, one end of the locking spring 23 abuts against the right end of the lock head 2, and the other end of the locking spring 23 abuts against the inner wall of the sliding groove. The elastic force of the locking spring 23 when the handle tube 1 is in the open state is less than the resistance of the elastic stop 4 blocking the column 10, and when the handle tube 1 is about to be locked, the sum of the elastic force of the locking spring 23 and the attractive force of the attracting part 6 and the lock head 2 attracting each other magnetically is greater than the resistance of the elastic stop 4 blocking the column 10.

[0053] The suction part 6 of this embodiment is a cylindrical permanent magnet, such as a common magnet. A magnet chute 24 is provided in the locking part 5, and the suction part 6 is slidably arranged in the magnet chute 24. A return pin 22 is fixedly provided on the left side of the magnet chute 24. The return pin 22 and the suction part 6 attract each other magnetically. The return pin 22 of this embodiment is a steel nail, and the attraction between the return pin 22 and the suction part 6 is less than the attraction between the suction part 6 and the lock head 2. That is, when the lock head 2 falls into the locking groove, under the action of magnetic force, the suction part 6 disengages from the return pin 22 and slides to the right end of the magnet chute 24 to adsorb to the lock head 2. When the lock head 2 disengages from the locking groove, under the action of magnetic force, the suction part 6 is attracted back to the left end of the magnet chute 24 by the return pin 22 again. In some other embodiments, the attraction between the return pin 22 and the suction part 6 can also be equal to or only slightly less than the attraction between the suction part 6 and the lock head 2. When the lock head 2 falls into the locking groove, due to the vibration of the falling lock head 2, the return pin 22 and the suction part 6 are disengaged from each other, and the suction part 6 slides to the right end of the magnet chute 24 to adsorb to the lock head 2.

[0054] Positioning magnets 25 are provided on both sides of the locking groove. The positioning magnets 25 are used to guide the lock head 2 to accurately align with and fall into the locking groove by attraction when the handle tube 1 falls to prepare for locking.

[0055] Two limit pins 21 are respectively provided on the locking part 5 and the connecting part 17. The limit pins 21 are respectively arranged in the left and right directions of the handle tube 1. Through holes matching with the limit pins 21 are provided on both the left vertical plate 7 and the right vertical plate 15. The limit pins 21 are used for limiting to prevent the locking part 5 from rotating relative to the left vertical plate 7 and prevent the connecting part 17 from rotating relative to the right vertical plate 15, so that the handle tube 1 can be opened and closed in the vertical direction.

[0056] The elastic part 20 of this embodiment includes a connected top block and a spring. The other end of the spring is provided with an adjusting member 27. The adjusting member 27 is in threaded cooperation with the connecting part 17. By rotating the adjusting member 27, the elastic force of the elastic part 20 can be adjusted.

[0057] A second limit stop 26 is provided on the lower right side of the handle tube 1 of this embodiment. The second limit stop 26 is used to limit the rotation angle of the handle tube 1 by abutting against the elastic part 20.

[0058] In this embodiment, at the hinge joint of the handle tube 1 and the connecting part 17, the handle tube 1 tapers towards the center until the width is the same as the width of the gap in the connecting part 17.

[0059] The specific embodiments described above further elaborate on the objective, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only for the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. In particular, it is pointed out that for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A magnetic locking structure for a tubular handle, characterized in that, It includes a base (19), a handle tube (1), a locking part (5) and a connecting part (17); The two ends of the base (19) are respectively provided with a left vertical plate (7) and a right vertical plate (15). The locking part (5) is fixedly arranged at the upper end of the left vertical plate (7), and the connecting part (17) is fixedly arranged at the upper end of the right vertical plate (15); The right end of the handle tube (1) is rotatably connected to the connecting part (17). A sleeve (11) is sleeved on the left end of the handle tube (1). A lock head (2) is arranged inside the left end of the handle tube (1). A guide rail (3) penetrating inside and outside is arranged at the left end of the handle tube (1). A column (10) penetrating the guide rail (3) is fixedly arranged inside the sleeve (11). The lock head (2) is fixedly connected to the column (10). The guide rail (3) is used to limit the movement track of the column (10). An elastic stop (4) is arranged inside the guide rail (3), and the elastic stop (4) is used to elastically hold the column (10) with a certain elasticity when the lock head (2) retracts; A locking groove for accommodating the lock head (2) is arranged on the locking part (5). When the lock head (2) pops out, the inner side of the sleeve (11) is cooperated and locked with the locking part (5). An attracting part (6) is arranged at one end of the locking groove close to the left vertical plate (7); At least one of the attracting part (6) and the lock head (2) is a permanent magnet. The attracting part (6) and the lock head (2) attract each other magnetically, and the suction force of their mutual attraction is greater than the elasticity of the elastic stop (4) blocking the column (10).

2. The magnetic locking structure of a tubular handle according to claim 1, wherein A sliding groove for accommodating the lock head (2) is arranged inside the left end of the handle tube (1). A locking spring (23) is arranged inside the sliding groove. One end of the locking spring (23) abuts against the right end of the lock head (2), and the other end of the locking spring (23) abuts against the inner wall of the sliding groove; The attracting part (6) is a permanent magnet. A magnet sliding groove (24) is arranged inside the locking part (5). The attracting part (6) is slidably arranged inside the magnet sliding groove (24). A return pin (22) is fixedly arranged on the left side of the magnet sliding groove (24); Positioning magnets (25) are arranged on both sides of the locking groove.

3. The magnetic locking structure of a tubular handle according to claim 1, characterized in that, A rotating shaft (16) is arranged horizontally on the connecting part (17). The right end of the handle tube (1) is rotatably connected to the connecting part (17) through the rotating shaft (16). A first limiting stop (14) is arranged inside the connecting part (17), and the first limiting stop (14) is used to limit the opening angle of the handle tube (1).

4. The magnetic locking structure of a tubular handle according to claim 1, wherein, A lapping part is arranged at the left end of the handle tube (1). The shape of the lapping part matches that of the locking groove. A hollow cavity penetrating left and right is arranged inside the lapping part. The lock head (2) penetrates through the hollow cavity.

5. The magnetic locking structure of a tubular handle according to claim 1, characterized in that: A first thread (8) is arranged at the left end of the locking part (5). The first thread (8) penetrates through the upper end of the left vertical plate (7). A first fixing part (9) matching the first thread (8) is arranged on the left side of the left vertical plate (7); The right end of the connecting part (17) is provided with a second thread (12), the second thread (12) penetrates through the upper end of the right vertical plate (15), and a second fixing member (13) matching with the second thread (12) is arranged on the right side of the right vertical plate (15).

6. The magnetic locking structure of a tubular handle according to claim 1, characterized in that, A handle sleeve (18) is sleeved outside the handle tube (1).

7. A magnetic locking structure for a tubular handle according to claim 1, characterized in that, An anti-slip part is arranged outside the cylinder sleeve (11).

8. A magnetic locking structure of a tubular handle according to claim 1, wherein, An elastic part (20) is arranged inside the connecting part (17), and one end of the elastic part (20) abuts against the right end of the handle tube (1).

9. The magnetic locking structure of a tubular handle according to claim 8, characterized in that, A sliding surface matching with the elastic part (20) is arranged at the right end of the handle tube (1), and a second limit stop (26) is arranged at the lower side of the right end of the handle tube (1). The second limit stop (26) is used for limiting the rotation angle of the handle tube (1) by abutting against the elastic part (20).

10. A magnetic locking structure of a tubular handle according to claim 1, characterized in that, Limit pins (21) are arranged on both the locking part (5) and the connecting part (17), and through holes matching with the limit pins (21) are arranged on both the left vertical plate (7) and the right vertical plate (15).

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