An upright lift handrail

Abstract

The application discloses a vertical lifting armrest and relates to the technical field of automobile seats, which comprises an armrest rod assembly, wherein the armrest rod assembly comprises a sliding rod, at least one locking slot is formed in the sliding rod, a guide sleeve is slidably arranged on the armrest rod assembly, the guide sleeve is rotationally connected with an unlocking bracket, one end of the unlocking bracket is fixedly connected with an unlocking pin, the other end of the unlocking bracket is connected with a button assembly, the unlocking pin is in clamping connection with the locking slot, a metal bracket is arranged outside the guide sleeve, and an armrest upper cover assembly is fixedly connected above the metal bracket. When the armrest is pulled upward, the unlocking pin automatically slides out of the locking slot, and the button does not need to be operated; when the armrest is adjusted downward, the button needs to be pressed to make the unlocking pin slide out of the rear locking slot, and then the armrest can be moved downward. The application realizes one-handed convenient operation without unlocking when the armrest is lifted upward and with pressing unlocking when the armrest is lowered downward, has the advantages of simple structure, firm locking, low cost, and consideration of driving comfort and driving safety.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more particularly to an upright, adjustable armrest. Background Technology

[0002] With the rapid development of the automotive industry, users have increasingly higher requirements for the comfort and functionality of car seats. As an important interior component, the height adjustment function of the seat armrest directly affects the riding comfort of drivers and passengers.

[0003] Currently, traditional car seat armrests mostly use a fixed structure, which cannot be height-adjusted according to the occupant's body shape and sitting posture, making it difficult to meet the needs of occupants of different heights and with different sitting habits. To solve this problem, some height-adjustable armrest products have appeared on the market, but they generally have the following drawbacks: First, existing height-adjustable handrails mostly use complex linkage mechanisms or gear rack mechanisms to achieve the lifting function. The structure is complex and there are many parts, resulting in high manufacturing costs and complicated assembly processes, which is not conducive to large-scale production.

[0004] Secondly, some lifting handrails require simultaneous operation of the unlocking mechanism and application of lifting force during the lifting operation, which is cumbersome and cannot achieve convenient one-handed operation, resulting in a poor user experience.

[0005] Third, the locking mechanism of existing products is not reliable enough. It is prone to loosening or abnormal noise during vehicle travel, which affects driving safety and ride quality.

[0006] To address the aforementioned issues, there is an urgent need to develop a new type of upright lifting handrail that is simple in structure, easy to operate, has reliable locking, and is inexpensive. Summary of the Invention

[0007] To address the aforementioned problems in the prior art, this invention provides a novel upright lifting handrail, which aims to achieve the following objectives: enabling convenient one-handed operation with no need to unlock when raising and requiring pressing to unlock when lowering; simplifying the structure and reducing the number of parts to lower manufacturing costs; ensuring reliable gear locking, thereby improving driving safety and passenger comfort.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A vertical lifting handrail includes a handrail assembly, which includes a slide rod. The slide rod has at least one locking groove. A guide sleeve is slidably fitted onto the handrail assembly. An unlocking bracket is rotatably connected to the guide sleeve. An unlocking pin is fixedly connected to one end of the unlocking bracket, and a button assembly is connected to the other end. The unlocking pin engages with the locking groove. A metal bracket is fitted onto the outside of the guide sleeve, and a handrail cover assembly is fixedly connected to the top of the metal bracket.

[0009] Preferably, it further includes an elastic reset member connected between the guide sleeve and the unlocking pin, which provides a reset force to keep the unlocking pin engaged with the lock groove.

[0010] Preferably, the button assembly includes a button and a button spring, one end of the button is connected to the unlocking bracket, and the button spring is used to provide button reset force.

[0011] Preferably, the metal bracket is fixedly connected to a left bracket and a right bracket, and the left bracket and the right bracket are respectively fixedly connected to the armrest cover assembly.

[0012] Preferably, the lock groove has a right-angled trapezoidal cross-section, with an inclined guide surface at the top and a horizontal locking surface at the bottom.

[0013] Preferably, the slide rod is provided with a limiting pin, the guide sleeve is provided with a sliding groove, and the limiting pin moves within the sliding groove.

[0014] Preferably, it also includes a lower guard plate, which is snapped onto the lower part of the handrail assembly to prevent the slide bar from being exposed.

[0015] Preferably, it also includes a left guard plate and a right guard plate, which are respectively disposed on the left and right sides of the metal bracket.

[0016] Preferably, the elastic reset element is a reset spring, one end of which is connected to the guide sleeve and the other end is connected to the unlocking pin.

[0017] Preferably, the unlocking bracket is rotatably connected to the guide sleeve via pins on both sides thereof.

[0018] By adopting the above-described technical solution, the beneficial effects of the present invention compared with the prior art are as follows: (1) The present invention provides a vertical lifting handrail with significantly improved ease of operation: it adopts a one-way control logic that requires no unlocking when rising and requires pressing to unlock when falling. Passengers can raise the handrail by simply lifting it with one hand and press the button with one hand when adjusting it downwards, which greatly simplifies the lifting operation process and improves the ease of use. (2) The present invention provides a vertical lifting handrail with a simple structure and low cost: compared with the lifting handrails in the prior art that use complex linkage mechanism or gear rack mechanism, the present invention uses the locking pin and the locking groove to achieve gear locking. The core components are only a few parts such as guide sleeve, unlocking bracket, and unlocking pin. The structure is compact and the number of parts is small, which greatly reduces material cost and manufacturing cost, and simplifies the assembly process. (3) The present invention provides a vertical lifting handrail that is securely locked and safe: the locking groove adopts a right-angled trapezoidal section design, and the horizontal locking surface and the unlocking pin form a stable surface contact engagement, which is not easy to come out during the bumpy driving process, ensuring the locking reliability of the handrail at any adjustment position, and taking into account both passenger comfort and driving safety. (4) A vertical lifting handrail of the present invention can realize multi-level fine adjustment: by setting multiple locking grooves on the handrail assembly, multi-level height adjustment can be realized to meet the personalized comfort needs of passengers of different body types; (5) The present invention provides a vertical lifting handrail with a neat and beautiful appearance: by setting a left guard plate, a right guard plate and a lower guard plate, the internal lifting mechanism is completely covered, the appearance is neat and the product quality is improved. Attached Figure Description

[0019] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings. In the drawings: Figure 1 This is a perspective view of the handrail of the present invention in its initial state; Figure 2 This is a perspective view of the handrail of the present invention in the raised state; Figure 3 This is an exploded view of an example of the present invention; Figure 4 This is a perspective view of part of the structure of the present invention; Figure 5 This is another perspective view of part of the structure of the present invention; The reference numerals in the accompanying drawings include: armrest cover assembly 1, limit pin 2, guide sleeve 3, unlocking bracket 4, unlocking pin 5, lower guard plate 6, armrest rod assembly 7, screw 8, left side bracket 9, right side bracket 10, metal bracket 11, right guard plate 12, left guard plate 13, button assembly 14, elastic reset component 15, slide groove 31, pin shaft 41, button 141, button spring 142, slide rod 71, locking groove 711, connecting seat 72, inclined guide surface 7111, and horizontal locking surface 7112. Detailed Implementation

[0020] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0024] Reference Figures 1 to 5 , Figure 1 This is a perspective view of the handrail of the present invention in its initial state. Figure 2 This is a perspective view of the handrail of the present invention in the raised state. Figure 3 This is an exploded view of an example of the present invention. Figure 4 This is a perspective view of part of the structure of the present invention. Figure 5 This is another perspective view of part of the structure of the present invention. In one embodiment, the present invention provides an upright lifting handrail including a handrail top cover assembly 1, a limiting pin 2, a guide sleeve 3, an unlocking bracket 4, an unlocking pin 5, a lower guard plate 6, a handrail rod assembly 7, a screw 8, a left side bracket 9, a right side bracket 10, a metal bracket 11, a right guard plate 12, a left guard plate 13, a button assembly 14, and an elastic reset member 15.

[0025] The armrest assembly 7 includes a slide rod 71 and a connecting seat 72. The connecting seat 72 is used to connect the armrest assembly 7 to the seat frame. The slide rod 71 is fixedly mounted on the connecting seat 72. Preferably, two slide rods 71 ​​are provided. Each slide rod 71 has at least one locking groove 711. Multiple locking grooves 711 can also be provided at intervals along the vertical direction to realize multi-level height adjustment. The cross-section of the locking groove 711 is preferably set in a right-angled trapezoid. The upper part of the locking groove 711 forms an inclined guide surface 7111 to allow the armrest to move upward, and the lower part forms a horizontal locking surface 7112 to achieve stable locking.

[0026] The guide sleeve 3 is slidably sleeved on the handrail assembly 7. The guide sleeve 3 is rotatably connected to the unlocking bracket 4. The unlocking bracket 4 is preferably rotatably connected to the guide sleeve 3 through pins 41 provided on both sides. One end of the unlocking bracket 4 is fixedly connected to the unlocking pin 5, and the other end is connected to the button assembly 14. The unlocking pin 5 is engaged with the lock groove 711. The unlocking pin 5 is preferably a cuboid pin, and its length direction is perpendicular to the axis of the slide bar 71. The cuboid pin can form a surface contact with the horizontal locking surface 7112 of the lock groove 711 for stable engagement.

[0027] The elastic reset element 15 is connected between the guide sleeve 3 and the unlocking pin 5, and is used to provide a reset force to keep the unlocking pin 5 engaged with the lock groove 711. The elastic reset element 15 is a reset spring, one end of which is connected to the guide sleeve 3 and the other end is connected to the unlocking pin 5.

[0028] A metal bracket 11 is fitted on the outer side of the guide sleeve 3, and an armrest cover assembly 1 is fixedly connected above the metal bracket 11; preferably, a left bracket 9 and a right bracket 10 are fixedly connected to the metal bracket 11, and the left bracket 9 and the right bracket 10 are respectively fixedly connected to the armrest cover assembly 1.

[0029] The lower guard plate 6 is snapped onto the lower part of the handrail assembly 7 to prevent the slide rod 71 from being exposed. The lower guard plate 6 is preferably snapped onto the slide rod 71 and is located at the lowest end to prevent the arm of the handrail assembly 7 from being exposed, thus providing a sealing and aesthetic function. The left guard plate 12 and the right guard plate 13 are respectively disposed on the left and right sides of the metal bracket 11 and snapped together. The button assembly 14 is preferably disposed on the left guard plate 12, that is, on the guard plate closer to the occupant. The button assembly 14 includes a button 141 and a button spring 142. One end of the button 141 is connected to the unlocking bracket 4, and the button spring 142 is used to provide the reset force of the button 141. One end of the button spring 142 abuts against the upper part of the unlocking bracket 4, and the other end abuts against the button 141.

[0030] In one embodiment, the slide rod 71 is provided with a limiting pin 2, and the guide sleeve 3 is provided with a sliding groove 31. The limiting pin 2 moves within the sliding groove 31 so that the guide sleeve 3 is limited by the limiting pin 2 when sliding along the slide rod 71, thereby preventing the handrail from rising excessively.

[0031] The following will refer to Figures 1 to 5 The working principle of this invention will be explained.

[0032] Lifting Adjustment: The occupant directly lifts the armrest cover assembly 1 upwards, causing the guide sleeve 3 to move the unlocking pin 5 upwards relative to the armrest assembly 7. Because the upper part of the locking groove 711 has an inclined guide surface 7111, the unlocking pin 5 automatically slides out of the current locking groove along the inclined guide surface 7111, without needing to press the button 16. When the armrest reaches the target position, under the action of the elastic reset member 15, the unlocking pin 5 automatically engages with the corresponding locking groove 71, achieving locking.

[0033] Lowering adjustment: When the occupant presses button 141, button 141 pushes the unlocking bracket 4 to rotate around pin 41. The unlocking bracket 4 causes the unlocking pin 5 to disengage from the current lock groove 711, thus unlocking the structure. At this time, the guide sleeve 3 can slide freely downward relative to the handrail assembly 7. After the occupant presses the handrail down to the target position and releases button 141, the unlocking bracket 4 rotates back to its original position under the restoring force of the elastic reset member 15 and the button spring 142, and the unlocking pin 5 re-engages into the corresponding lock groove 71, thus locking the structure.

[0034] Through the aforementioned one-way control logic, raising the handrail requires no switch to be touched, while lowering it requires pressing a button to unlock, thus balancing ease of operation and safety.

[0035] This invention provides a vertical lifting handrail with significantly improved ease of operation: It employs a one-way control logic where raising the handrail requires no unlocking and lowering requires pressing to unlock. Passengers can raise the handrail by simply pulling it upwards with one hand and lower it by pressing a button with one hand, greatly simplifying the lifting operation and enhancing usability. This vertical lifting handrail also features a simple structure and low cost: Compared to existing lifting handrails that use complex linkage mechanisms or rack and pinion mechanisms, this invention uses a locking mechanism between an unlocking pin and a locking groove to achieve gear locking. The core components are limited to a few parts such as a guide sleeve, unlocking bracket, and unlocking pin, resulting in a compact structure and fewer parts, significantly reducing material and manufacturing costs while simplifying the assembly process. The present invention provides a vertical lifting handrail that is securely locked and safe: the locking groove adopts a right-angled trapezoidal cross-section design, and the horizontal locking surface and the unlocking pin form a stable surface contact engagement, making it difficult to disengage during vehicle travel and ensuring the reliability of the handrail's locking at any adjustment level, thus balancing passenger comfort and driving safety; the present invention also provides a vertical lifting handrail that allows for multi-level fine adjustment: by setting multiple locking grooves on the handrail assembly, multiple height adjustments can be achieved to meet the personalized comfort needs of passengers of different body types; the present invention further provides a clean and aesthetically pleasing appearance: by setting a left guard plate, a right guard plate, and a lower guard plate, the internal lifting mechanism is completely concealed, resulting in a clean appearance and enhancing the product's perceived quality.

[0036] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A vertical lifting handrail, characterized in that, The handrail assembly includes a slide rod with at least one locking groove. A guide sleeve is slidably fitted onto the handrail assembly. An unlocking bracket is rotatably connected to the guide sleeve. An unlocking pin is fixedly connected to one end of the unlocking bracket, and a button assembly is connected to the other end. The unlocking pin engages with the locking groove. A metal bracket is fitted onto the outside of the guide sleeve, and a handrail cover assembly is fixedly connected above the metal bracket.

2. The upright lifting handrail according to claim 1, characterized in that, It also includes an elastic reset member connected between the guide sleeve and the unlocking pin, which provides a reset force to keep the unlocking pin engaged with the lock groove.

3. A vertical lifting handrail according to claim 1, characterized in that, The button assembly includes a button and a button spring, one end of the button is connected to the unlocking bracket, and the button spring is used to provide button reset force.

4. A vertical lifting handrail according to claim 1, characterized in that, The metal bracket is fixedly connected to a left bracket and a right bracket, and the left bracket and the right bracket are respectively fixedly connected to the armrest cover assembly.

5. A vertical lifting handrail according to claim 1, characterized in that, The lock groove has a right-angled trapezoidal cross-section, with an inclined guide surface at the top and a horizontal locking surface at the bottom.

6. A vertical lifting handrail according to claim 1, characterized in that, The slide rod is provided with a limiting pin, and the guide sleeve is provided with a sliding groove, and the limiting pin moves within the sliding groove.

7. A vertical lifting handrail according to claim 1, characterized in that, It also includes a lower guard plate, which is snapped onto the lower part of the handrail assembly to prevent the slide bar from being exposed.

8. A vertical lifting handrail according to claim 1, characterized in that, It also includes a left guard plate and a right guard plate, which are respectively disposed on the left and right sides of the metal bracket.

9. A vertical lifting handrail according to claim 2, characterized in that, The elastic reset component is a reset spring, one end of which is connected to the guide sleeve and the other end is connected to the unlocking pin.

10. A vertical lifting handrail according to claim 1, characterized in that, The unlocking bracket is rotatably connected to the guide sleeve via pins on both sides.

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