Lifting lock catch mechanism
By designing a lifting lock mechanism including seat body, locking tongue assembly, self-locking lever and unlocking button, the problem of lack of self-locking function of the electric luggage lifting structure is solved, and higher reliability and load-bearing capacity are achieved, improving The safety and comfort of riding.
Patent Information
- Application Number
- CN202411245060.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2024-12-27
AI Technical Summary
The lifting structure of the existing electric suitcase lacks self-locking function, resulting in unstable center of gravity during riding, inconvenient use and poor reliability.
A lifting lock mechanism including a seat body, a locking tongue assembly, a self-locking lever and an unlocking button is designed. The locking and unlocking functions are realized through the cooperation of two mirrored L-shaped locking tongues and a self-locking lever, and the compression spring is used. The drive lock tongue is telescopic, ensuring a simple structure and self-locking function.
It improves the load-bearing capacity and reliability of the suitcase, ensures that the lock tongue is not easily retracted in a locked state, enhances safety and comfort during riding, and can be unlocked and reset under the action of external forces.
Smart Images
Figure CN119184434A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of vehicles, in particular to a lifting and locking mechanism for a rideable electric luggage case. Background Art
[0002] Transportation is an indispensable part of modern people's lives. With the changes of the times and the advancement of science and technology, there are more and more transportation tools around people, which has brought great convenience to everyone's life. In daily life and work, people have more and more outdoor activities such as leisure travel and business travel. When traveling, everyone usually carries a suitcase to carry some necessary personal daily necessities or materials. As we all know, when we travel by subway, train or plane, there is often a long distance to walk before entering and exiting the subway station. There is often a long distance from the parking lot to the station waiting room or airport terminal (at least a few hundred meters, as much as one or two kilometers). It is not only a waste of time and effort to carry a suitcase for such a long distance. Now there are also many rideable suitcases. For example, Chinese patent document CN208550268U discloses an electric suitcase, which has a top for riding, which can be used by users to ride. When riding, the suitcase is in a vertical state with a high center of gravity. Chinese patent document CN209498889U discloses an intelligent riding electric luggage case, which is in a horizontally laid-down state when riding. The center of gravity is lower than that of the electric luggage case of CN208550268U, but the ride height is also low, and the ride comfort is poor. Therefore, a seat for an electric luggage case that can be raised and lowered is needed, and the lifting structure thereof can be easily thought of as a telescopic structure of a trolley case, such as the luggage case trolley disclosed in Chinese patent document CN202999687U, which includes a trolley structure extending up and down, and a positioning structure installed on the trolley structure and enabling the trolley structure to adjust the telescopic length. The trolley structure includes an outer tube radially perforated with a plurality of positioning holes spaced along its length, and an inner tube that can be relatively slidably inserted into the outer tube. The positioning structure is fixedly mounted on the inner tube and can be protruded and clamped in one of the positioning holes of the outer tube to make the inner tube slide and position relative to the outer tube. The positioning structure includes a base, a positioning block, an elastic member, a support frame, and a push rod. The base is fixedly mounted in the inner tube, and a slide groove extending left and right and having a lateral opening is recessed on the side surface, and a plug hole extending downward and connected to the slide groove is recessed on the top surface. The positioning block is arranged in the slide groove so as to slide left and right, and can change between a positioning position in which it protrudes out of the opening of the slide groove and can be disengaged and protruded and clamped in the positioning hole of the outer tube, and a disengagement position in which it moves into the slide groove and disengages from the outer tube. The elastic member is installed between the base and the positioning block so as to elastically push the positioning block toward the opening direction of the slide groove. The support frame is fixedly mounted above the base, and has a rail hole that runs through from top to bottom and is located above the plug hole. The push rod can slide up and down to pass through the rail hole and the insertion hole and abut against the positioning block, and can move downward relative to the base to force the positioning block to move to the disengaged position. The structure does not have a self-locking function, and the convex buckle part of the positioning block is easily retracted by external force interference, and the reliability is poor.Therefore, a lifting and locking mechanism for an electric luggage case with good reliability and self-locking function is needed. Summary of the invention
[0003] The object of the present invention is to provide a lifting and locking mechanism for a rideable electric luggage case which has a simple structure and a self-locking function and has good reliability.
[0004] The basic technical scheme for achieving the purpose of the present invention is: a lifting lock mechanism, which has the following structural features: including a seat body, a lock tongue assembly, a self-locking rod and an unlocking button. The seat body is an integral part, and the seat body is provided with a hollow cavity. A guide seat is provided in the middle of the seat body, and a guide hole is provided in the middle of the guide seat that runs through it from top to bottom. The lower end of the self-locking rod is provided with a self-locking portion protruding outward, the upper part of the self-locking rod is slidably arranged in the guide hole, and the upper end extends out of the guide seat, the unlocking button is fixedly connected and arranged on the upper end of the self-locking rod, and the lower part of the seat body is provided with a lock tongue groove that opens downward and runs through outward. The lock tongue assembly includes a lock tongue, and the lock tongue is L-shaped. The upper part of the lock tongue is rotatably arranged in the seat body through a corresponding pin shaft, and the lower part of the lock tongue is located in the lock tongue groove, and is driven to extend outward by the lock tongue driving device. In the locked state, the self-locking portion of the self-locking rod is located on the inner side of the lock tongue, and the lock tongue is limited and fixed.
[0005] Furthermore, in order to further improve the bearing capacity: the lock tongue assembly has two lock tongues, the two lock tongues have the same structure and are arranged in a mirror image. The lock tongue is L-shaped, the upper part of the lock tongue is rotatably arranged in the seat body through the corresponding pin shaft, and the lower part of the lock tongue is located in the lock tongue groove. The left and right sides of the lower end of the self-locking rod are provided with self-locking parts protruding outward. In the locked state, the self-locking part of the self-locking rod is located between the two lock tongues, which limit and fix the two lock tongues.
[0006] Furthermore, in order to facilitate the rotation of the lock tongue, a push-down unlocking part is provided on the left and right sides of the unlocking button, and an unlocking inclined surface is provided at the lower end of the push-down unlocking part. An unlocking cam part is provided on the upper part of the lock tongue, and the push-down unlocking part of the unlocking button cooperates with the unlocking cam part.
[0007] Furthermore, in order to facilitate the extension and reset of the lock tongue, the lock tongue driving device is a leaf spring, a torsion spring or a compression spring.
[0008] Furthermore, in order to facilitate the extension and reset of the lock tongue: the lock tongue driving device is a compression spring, a mounting hole is provided in the middle of the lock tongue, the compression spring is arranged in the mounting hole, and the compression spring is located between the lock tongue and the guide seat.
[0009] Furthermore, in order to facilitate the reset of the unlocking button, the guide seat in the middle of the seat body is T-shaped. A mounting column is provided on each of the left and right sides of the upper part of the guide seat, and a compression spring is sleeved on the mounting column. The compression spring on the mounting column is located between the unlocking button and the guide seat.
[0010] Furthermore, in order to facilitate the installation and fixation of the telescopic sleeve: sleeve connecting holes are provided on the left and right sides of the upper part of the seat body.
[0011] The present invention has the following beneficial effects: (1) The lifting and locking mechanism of the present invention has a simple structure and adopts two lock tongues arranged in a mirror image to ensure that the left and right sides are evenly stressed, which is beneficial to improving the load-bearing capacity and facilitating riding. By arranging a self-locking rod, when the two lock tongues extend outward and are in a locked connection state, the lower part of the self-locking rod limits and fixes the two lock tongues. Even if the lock tongues are squeezed by external force, they cannot retract inward, which greatly improves the reliability of use. (2) The lifting and locking mechanism of the present invention is also provided with a pre-unlocking state. In this state, the lock tongue is in a state where it can move under external force, and the unlocking function can be realized when the lock tongue is driven by external force. (3) The lifting and locking mechanism of the present invention has a simple structure and can also adopt a half structure for use in telescopic rods with smaller spatial structures. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic structural diagram of the lifting and locking mechanism of the present invention.
[0013] Figure 2 for Figure 1 Schematic diagram of the right side.
[0014] Figure 3 For Figure 1 Schematic diagram when viewed from the upper right front.
[0015] Figure 4 Figure 1 Schematic top view of .
[0016] Figure 5 for Figure 1 AA section diagram in.
[0017] Figure 6 It is a top view schematic diagram of the lifting lock mechanism of the present invention when it is in a pre-unlocking state.
[0018] Figure 7 for Figure 6 BB cross-sectional view in .
[0019] Figure 8 It is a top view schematic diagram of the lifting lock mechanism of the present invention when it is in a fully unlocked state.
[0020] Fig. 9 for Figure 8 Schematic diagram of CC section view.
[0021] Fig.10 It is a schematic diagram of the lifting and locking mechanism of the present invention when it is applied in a telescopic tube.
[0022] Fig.11 For Fig.10 Schematic diagram when viewed from the lower left front.
[0023] Fig.12 It is a schematic diagram of the lifting and locking mechanism and the operating lever of the present invention.
[0024] Fig.13 It is a schematic diagram of the structure of the self-locking rod and the unlocking button.
[0025] The reference numerals in the accompanying drawings are: Seat body 1, guide seat 1-1, guide hole 1-11, mounting column 1-12, lock tongue groove 1-2, sleeve connection hole 1-3, Lock tongue assembly 2, lock tongue 2-1, unlocking cam portion 2-11, mounting hole 2-12, pin shaft 2-2, Self-locking rod 3, self-locking part 3-1, Unlock button 4, press down unlocking part 4-1, unlocking slope 4-11, Telescopic sleeve 10-1, fixed sleeve seat 10-2, control rod 10-3. DETAILED DESCRIPTION
[0026] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings. Figure 1 The direction shown is carried out, that is, Figure 1 The up, down, left, and right directions shown are the up, down, left, and right directions described. Figure 1 The direction is forward, away from Figure 1 It should be understood that the terms "upper", "lower", "inner", "outer" and the like indicating directions or positional relationships are based on the positional relationships described in the drawings and are only for the convenience of describing the present invention or simplifying the description, rather than indicating a specific direction that must be possessed.
[0027] (Example 1) See Figures 1 to 12 The lifting lock mechanism of the present invention includes a seat body 1, a lock tongue assembly 2, a self-locking rod 3 and an unlocking button 4.
[0028] The seat body 1 is an integral part, and in this embodiment, it is an injection molded integral part. The seat body 1 is provided with a hollow cavity for installing the bolt assembly 2, the self-locking rod 3 and the unlocking button 4 assembly. A T-shaped guide seat 1-1 is provided in the middle of the seat body 1, and a guide hole 1-11 is provided in the middle of the guide seat 1-1 that runs through it from top to bottom. A mounting column 1-12 is provided on each of the left and right sides of the upper part of the guide seat 1-1, and a compression spring (not shown in the attached drawings) is sleeved on the mounting column 1-12. A self-locking portion 3-1 protruding outward is provided on the left and right sides of the lower end of the self-locking rod 3. The self-locking rod 3 of this embodiment is in an inverted T shape, and the upper part of the self-locking rod 3 is slidably arranged in the guide hole 1-11 along the up and down direction, and the upper end extends out of the guide seat 1-1. The unlocking button 4 is fixedly connected and arranged on the upper end of the self-locking rod 3, and the compression spring on the mounting column 1-12 is located between the unlocking button 4 and the guide seat 1-1, thereby driving the unlocking button 4 to move upward. A bolt groove 1-2 opening downward and running through the left and right sides of the seat body 1 is provided at the lower part of the seat body 1. The upper left and right sides of the seat body 1 are provided with sleeve connecting holes 1-3. The left and right sides of the unlocking button 4 are provided with downward-pressing unlocking parts 4-1, and the lower end of the downward-pressing unlocking part 4-1 is provided with an unlocking inclined surface 4-11.
[0029] The bolt assembly 2 includes two bolts 2-1, which have the same structure and are arranged in a mirror image. The bolt 2-1 is L-shaped, and the upper part of the bolt 2-1 is rotatably arranged in the seat body 1 through the corresponding pin shaft 2-2, and the lower part of the bolt 2-1 is located in the bolt groove 1-2. An unlocking cam portion 2-11 is arranged on the upper part of the bolt 2-1, and the pressing unlocking portion 4-1 of the unlocking button 4 cooperates with the unlocking cam portion 2-11. When the pressing unlocking portion 4-1 moves downward, the unlocking inclined surface 4-11 contacts the unlocking cam portion 2-11 and drives the unlocking cam portion 2-11 to move outward, thereby rotating the bolt 2-1, and the lower part of the bolt 2-1 rotates and retracts into the seat body 1. A bolt driving device is arranged in the seat body 1, and the bolt driving device is used to drive the lower end of the bolt 2-1 to extend outward. The bolt driving device can adopt a leaf spring, a torsion spring, a compression spring, etc. The bolt driving device of this embodiment adopts a compression spring. A mounting hole 2-12 is provided in the middle of the lock tongue 2-1, and a compression spring (not shown in the accompanying drawings) of the lock tongue driving device is arranged in the mounting hole 2-12. The compression spring is located between the lock tongue 2-1 and the guide seat 1-1 and is in a compressed state. It is used to support the lock tongue 2-1 so that the lower part of the lock tongue 2-1 extends out of the seat body 1.
[0030] When the lifting and lowering lock mechanism of the present invention is used, the telescopic sleeve 10-1 is fixedly arranged on the upper part of the seat body 1, and the unlocking button 4 is operated and pressed by the corresponding operating lever 10-3 arranged on the telescopic sleeve 10-1. The telescopic sleeve 10-1 is slidably arranged in the fixed sleeve seat 10-2, and the fixed sleeve (not shown in the figure) is fixedly arranged on the fixed sleeve seat 10-2. The fixed sleeve is provided with a lock hole that matches the lock tongue 2-1. When the telescopic sleeve 10-1 is extended upward, the two lock tongues 2-1 are pushed outward by the action of the compression spring in the mounting hole 2-12 and then inserted into the corresponding lock holes on the fixed sleeve. At this time, the compression spring on the mounting column 1-12 pushes the unlocking button 4 upward, driving the self-locking rod 3 to move upward, so that the lower part of the self-locking rod 3 is located in the middle of the lower parts of the two lock tongues 2-1, so that the two lock tongues 2-1 are limited and fixed and are in a self-locking state (see Figure 5 ), and will not be changed by external forces, thus greatly improving reliability. When unlocking is required, the unlock button 4 is pressed downward by the operating rod 10-3, and when the unlocking inclined surface 4-11 of the downward unlocking portion 4-1 of the unlock button 4 contacts the unlocking cam portion 2-11 of the lock tongue 2-1, the lower part of the self-locking rod 3 moves downward, making room for the inner part of the two lock tongues 2-1 (see Figure 7 ), the lock tongue 2-1 is in a state where it can move under external force, which is called the pre-unlocking state. When the unlocking button 4 is pressed downward, the unlocking inclined surface 4-11 of the downward unlocking portion 4-1 of the unlocking button 4 causes the unlocking cam portion 2-1 of the lock tongue 2-1 to move outward, so that the lock tongue 2-1 rotates and retracts the lower part of the lock tongue 2-1 into the seat body 1 (see Fig. 9 ), after the lock tongue 2-1 exits the lock hole on the fixed sleeve, the telescopic sleeve 10-1 can be slid and retracted in the fixed sleeve.
[0031] (Example 2) The rest of this embodiment is the same as that of embodiment 1, except that this embodiment is half of embodiment 1, that is, the lifting and locking mechanism of embodiment 2 plus its mirror image portion can obtain embodiment 1.
[0032] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A lifting and locking mechanism, characterized in that: The invention comprises a seat body (1), a locking tongue assembly (2), a self-locking rod (3) and an unlocking button (4); the seat body (1) is an integral part, and the seat body (1) is provided with a hollow cavity; a guide seat (1-1) is provided in the middle of the seat body (1), and a guide hole (1-11) is provided in the middle of the guide seat (1-1) and runs through the upper and lower parts thereof; a self-locking portion (3-1) protruding outward is provided at the lower end of the self-locking rod (3), the upper part of the self-locking rod (3) is slidably arranged in the guide hole (1-11), and the upper end extends out of the guide seat (1-1); the unlocking button (4) is fixedly connected to the self-locking rod (3 ), the lower part of the seat body (1) is provided with a lock tongue groove (1-2) which opens downward and penetrates outward; the lock tongue assembly (2) comprises a lock tongue (2-1), the lock tongue (2-1) is L-shaped, the upper part of the lock tongue (2-1) is rotatably arranged in the seat body (1) through a corresponding pin shaft (2-2), and the lower part of the lock tongue (2-1) is located in the lock tongue groove (1-2) and is driven to extend outward by a lock tongue driving device; in a locked state, the self-locking part (3-1) of the self-locking rod (3) is located on the inner side of the lock tongue (2-1) to limit and fix the lock tongue (2-1).
2. The lifting and locking mechanism according to claim 1, characterized in that: The lock tongue assembly (2) has two lock tongues (2-1), the two lock tongues (2-1) have the same structure and are arranged in a mirror image; the lock tongue (2-1) is L-shaped, the upper part of the lock tongue (2-1) is rotatably arranged in the seat body (1) through a corresponding pin shaft (2-2), and the lower part of the lock tongue (2-1) is located in the lock tongue groove (1-2); the left and right sides of the lower end of the self-locking rod (3) are both provided with self-locking parts (3-1) protruding outwards; in a locked state, the self-locking part (3-1) of the self-locking rod (3) is located between the two lock tongues (2-1), and the two lock tongues (2-1) are limited and fixed.
3. The lifting and locking mechanism according to claim 1, characterized in that: The unlocking button (4) is provided with a push-down unlocking portion (4-1) on both sides thereof, and an unlocking inclined surface (4-11) is provided at the lower end of the push-down unlocking portion (4-1); an unlocking cam portion (2-11) is provided on the upper part of the lock tongue (2-1), and the push-down unlocking portion (4-1) of the unlocking button (4) cooperates with the unlocking cam portion (2-11).
4. The lifting and locking mechanism according to claim 1, characterized in that: The bolt driving device is a leaf spring, a torsion spring or a compression spring.
5. The lifting and locking mechanism according to claim 4, characterized in that: The lock tongue driving device is a compression spring. A mounting hole (2-12) is provided in the middle of the lock tongue (2-1). The compression spring is arranged in the mounting hole (2-12). The compression spring is located between the lock tongue (2-1) and the guide seat (1-1).
6. The lifting and locking mechanism according to claim 1, characterized in that: The guide seat (1-1) in the middle of the seat body (1) is T-shaped; a mounting column (1-12) is provided on each of the left and right sides of the upper part of the guide seat (1-1); a compression spring is sleeved on the mounting column (1-12); the compression spring on the mounting column (1-12) is located between the unlocking button (4) and the guide seat (1-1).
7. The lifting and locking mechanism according to claim 1, characterized in that: Sleeve connection holes (1-3) are provided on the left and right sides of the upper part of the seat body (1).