Seat height adjusting device

Abstract

The utility model discloses a seat height adjusting device, which comprises a base assembly, an adjusting assembly and an adjusting assembly, the base assembly comprises a mounting seat and a cylinder shaft, a through hole is formed in the middle of the mounting seat, the cylinder shaft penetrates through the through hole, and the mounting seat extends outwards and is provided with a plurality of limiting grooves; the triggering assembly comprises a triggering block and a plurality of triggering rods, the number and the shape of the triggering rods are matched with those of the limiting grooves, the tail ends of the multiple triggering rods are connected with the same triggering block, the triggering rods are installed in the corresponding limiting grooves respectively, the triggering rods are in transmission connection with the triggering block, and the triggering block is arranged above the air cylinder shaft; when external force is applied to the trigger rod, the trigger block presses the air cylinder shaft so as to adjust the height of the seat. A user can apply external force to the trigger rod from multiple directions, so that the height of the seat is adjusted, and the use experience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat adjustment, in particular to a seat height adjustment device. Background Art

[0002] As people's quality of life continues to improve, the requirements for seat comfort and functionality are also getting higher and higher. Especially in the fields of office, automobile, medical and other fields, the height adjustment function of the seat has become an indispensable part. Existing seat height adjustment devices mostly use pneumatic rods or mechanical adjustment mechanisms. Although they meet the needs of users to a certain extent, they still have some shortcomings. Existing office desks and chairs usually have an adjustment lever on the base, and the seat height is adjusted by controlling the adjustment lever. The adjustment lever can only be set in one position. When adjusting the seat height, the user must operate from this side and cannot adjust it from other directions, which greatly limits the flexibility of use. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a seat height adjustment device, which allows the user to apply external force to a trigger lever from multiple directions to adjust the seat height, greatly improving the user experience.

[0004] A seat height adjustment device according to a first embodiment of the present invention includes:

[0005] The base assembly includes a mounting seat and a cylinder shaft. A through hole is provided in the middle of the mounting seat, the cylinder shaft passes through the through hole, and a plurality of limit grooves are provided extending outward from the mounting seat.

[0006] A trigger assembly includes a trigger block and multiple trigger rods, the number and shape of the trigger rods being adapted to the limiting grooves, the ends of the multiple trigger rods being connected to the same trigger block, the trigger rods being respectively installed in the corresponding limiting grooves, the trigger rods being in transmission connection with the trigger block, and the trigger block being arranged above the cylinder shaft;

[0007] When an external force is applied to the trigger rod, the trigger block presses the cylinder shaft to adjust the height of the seat.

[0008] A seat height adjustment device according to an embodiment of the present invention has at least the following beneficial effects: a mounting base is provided with multiple limit slots and corresponding trigger levers, allowing the user to apply external force to the trigger lever from multiple directions to adjust the seat height. Compared to traditional single-point adjustment designs, this device provides greater operational flexibility, allowing users to complete adjustments without requiring a specific posture or position, significantly improving the user experience. The transmission connection design between the trigger lever and the trigger block allows users to achieve height adjustment with a simple application of force, making the operation simple and quick, without complex steps, and suitable for users of different ages and physical conditions. The tight integration of the trigger assembly and the base assembly ensures the stability of the device during adjustment, and the way the trigger block compresses the cylinder shaft effectively prevents shaking and instability during adjustment, improving the safety and reliability of adjustment. The multi-point trigger design avoids the risk of sudden drop or jamming that may occur with single-point adjustment, ensuring user safety during adjustment. Furthermore, the adaptive design of the trigger lever and the limit slot reduces the possibility of misoperation, further improving safety. The relatively simple structure and low manufacturing cost make it easy to mass-produce and promote its application.

[0009] According to some embodiments of the present invention, there are three limit slots, spaced 120° apart along the circumference of the mounting base. There are three trigger levers, one in each limit slot. Users can apply external force to the trigger levers from three different directions to adjust the seat height. Compared to traditional single-point adjustment designs, this device offers greater operational flexibility, allowing users to adjust without requiring a specific posture or position, significantly improving the user experience.

[0010] According to some embodiments of the present invention, the trigger assembly further includes a connecting ring connected to the head ends of the three trigger rods. The connecting ring enhances synchronization between the trigger rods, ensuring that the trigger block can evenly compress the cylinder shaft when external force is applied, further improving the stability and reliability of the adjustment.

[0011] According to some embodiments of the present invention, the connecting ring, the trigger lever, and the connecting ring are integrally molded. This not only simplifies the structure but also enhances synchronization between the trigger levers, ensuring that the trigger block uniformly compresses the cylinder shaft when external force is applied, further improving the stability and reliability of adjustment. The integral molding design also reduces assembly steps, lowers production costs, and improves production efficiency.

[0012] According to some embodiments of the present invention, the surface of the connecting ring is frosted, which increases the friction of the connecting ring, making the user more stable and less likely to slip during operation, and also increases the aesthetics and texture of the device, improving the user experience.

[0013] According to some embodiments of the present invention, the trigger lever extends outward away from the mounting base. Utilizing the principle of leverage, this allows the user to apply external force with less effort. By extending the length of the trigger lever, the user can more easily control the pressure of the trigger block on the cylinder shaft, thereby adjusting the seat height, greatly improving operational convenience and comfort.

[0014] According to some embodiments of the present invention, the trigger assembly includes a fixing plate mounted on one side of the through-hole, adapted to secure the trigger assembly to the mounting base. This ensures a secure mounting of the trigger assembly and improves the structural stability and reliability of the overall device. The use of the fixing plate not only enhances the mechanical strength of the device but also simplifies installation and maintenance, providing greater peace of mind and convenience for users.

[0015] According to some embodiments of the present invention, the mounting base is provided with a circular arc transition portion, which is arranged at the abutment between the limit slot and the trigger rod. This can reduce friction between the trigger rod and the limit slot during movement, reduce wear, and extend the service life of the device. The movement of the trigger rod within the limit slot is smoother, reducing jamming and unsmoothness, and improving the accuracy and reliability of adjustment.

[0016] According to some embodiments of the present invention, the trigger lever is provided with a reinforcing rib extending from the head end to the tail end of the trigger lever, thereby enhancing the rigidity of the trigger lever, making it less likely to deform when subjected to force, and ensuring the stability and durability of the trigger lever.

[0017] According to some embodiments of the present invention, the mounting base is further provided with a connection hole extending longitudinally through the mounting base and adapted to secure the base assembly to the seat. The design of the connection hole ensures a secure connection between the base assembly and the seat, improves the stability of the entire device, and avoids safety hazards caused by loosening during use.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of a trigger assembly installed on a base assembly according to an embodiment of the present invention;

[0021] Figure 2This is a second schematic diagram of the trigger assembly of an embodiment of the present utility model installed on the base assembly;

[0022] Figure 3 A schematic diagram of a trigger assembly according to an embodiment of the present invention;

[0023] Figure 4 Schematic diagram of a mounting base according to an embodiment of the present invention.

[0024] Reference numerals: mounting base 100 ; connecting ring 110 ; trigger rod 120 ; fixing plate 130 ; connecting hole 140 ; ​​trigger block 150 ; limiting groove 160 ; through hole 170 . DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise expressly defined, terms such as "set," "install," and "connect" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in the present utility model based on the specific content of the technical solution. In the description of this utility model, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with such embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of these terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In the description of this specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with such embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0029] Reference Figures 1 to 4 , a seat height adjustment device, comprising:

[0030] The base assembly includes a mounting base 100 and a cylinder shaft. A through hole 170 is provided in the middle of the mounting base 100, and the cylinder shaft passes through the through hole 170. A plurality of limiting grooves 160 are provided extending outward from the mounting base 100.

[0031] The trigger assembly includes a trigger block 150 and multiple trigger rods 120. The number and shape of the trigger rods 120 are adapted to the limiting grooves 160. The ends of the multiple trigger rods 120 are connected to the same trigger block 150. The trigger rods 120 are respectively installed in the corresponding limiting grooves 160. The trigger rods 120 are in transmission connection with the trigger block 150. The trigger block 150 is arranged above the cylinder shaft.

[0032] When an external force is applied to the trigger rod 120 , the trigger block 150 presses the cylinder shaft to adjust the height of the seat.

[0033] The mounting base 100 is provided with multiple limit slots 160 and corresponding trigger levers 120. The user can apply external force to the trigger levers 120 from multiple directions to adjust the seat height. Compared with traditional single-point adjustment designs, this device provides greater operational flexibility, allowing users to complete adjustments without requiring a specific posture or position, significantly improving the user experience. The transmission connection design between the trigger lever 120 and the trigger block 150 allows users to adjust the height with a simple application of force. The operation is simple and quick, without complex steps, and is suitable for users of different ages and physical conditions. The tight integration of the trigger assembly and the base assembly ensures the stability of the device during adjustment. The way the trigger block 150 compresses the cylinder shaft effectively prevents shaking and instability during adjustment, improving the safety and reliability of adjustment. The multi-point trigger design avoids the risk of sudden drops or jamming that may occur with single-point adjustment, ensuring user safety during adjustment. Furthermore, the adaptive design of the trigger lever 120 and the limit slots 160 reduces the possibility of misoperation, further improving safety. The relatively simple structure and low manufacturing cost make it easy to mass-produce and promote its application.

[0034] There are three limiting slots 160, which are arranged at 120° intervals along the circumference of the mounting base 100. There are three trigger rods 120, and a trigger rod 120 is arranged in each limiting slot 160. The user can apply external force to the trigger rod 120 from three different directions to adjust the seat height. Compared with the traditional single-point adjustment design, this device provides higher operational flexibility. The user can complete the adjustment without a specific posture or position, which greatly improves the user experience. In some embodiments, the number of limiting slots 160 can be increased or decreased according to actual needs. For example, the number of limiting slots 160 can be two, and these two limiting slots 160 are arranged opposite to each other at an interval of 180°, and are adapted to two trigger rods 120. In another case, the number of limiting slots 160 can be four, and these four limiting slots 160 are evenly distributed at an interval of 90°, and are adapted to four trigger rods 120. The number of limiting slots 160 can be adaptively modified according to the size of the mounting base 100 and specific application requirements.

[0035] In the first embodiment, the user can directly apply force to the trigger lever 120. Providing multiple trigger levers 120 allows the user to conveniently adjust the height of the seat in different directions.

[0036] The trigger assembly also includes a connecting ring 110, which is connected to the head end of each of the three trigger rods 120. The connecting ring 110 enhances the synchronization between the trigger rods 120, ensuring that the trigger block 150 can evenly compress the cylinder shaft when external force is applied, further improving the stability and reliability of the adjustment.

[0037] In the embodiment of the second aspect, the head end of the trigger lever 120 is connected to a connecting ring 110. By pressing the connecting ring 110, the user transmits force to the trigger lever 120. The design of the connecting ring 110 facilitates blind operation, allowing the user to easily adjust the seat height in any direction. In a preferred embodiment, three trigger levers 120 are matched with three limiting slots 160, each trigger lever 120 being connected to a connecting ring 110, thereby improving overall strength and ensuring uniform force distribution.

[0038] The connecting ring 110, trigger rod 120, and connecting ring 110 are integrally molded. This not only simplifies the structure but also enhances synchronization between the trigger rod 120 and the connecting ring 110, ensuring that the trigger block 150 uniformly compresses the cylinder shaft when external force is applied, further improving the stability and reliability of the adjustment. The integral molding design also reduces assembly steps, lowers production costs, and improves production efficiency.

[0039] The surface of the connecting ring 110 is frosted, which increases the friction of the connecting ring 110, making it more stable and less prone to slipping when the user operates it, and also increases the aesthetics and texture of the device, improving the user experience.

[0040] The trigger rod 120 extends outward away from the mounting base 100. Utilizing the principle of leverage, the user can apply external force with less effort. By extending the length of the trigger rod 120, the user can more easily control the pressure of the trigger block 150 on the cylinder shaft, thereby adjusting the seat height, greatly improving the convenience and comfort of operation.

[0041] The trigger assembly includes a fixing plate 130, which is mounted on one side of through-hole 170 and is suitable for securing the trigger assembly to mounting base 100. This ensures a secure installation of the trigger assembly and improves the structural stability and reliability of the entire device. The use of fixing plate 130 not only enhances the mechanical strength of the device but also simplifies the installation and maintenance process, making it more secure and convenient for users.

[0042] The mounting base 100 is provided with a circular arc transition portion, which is arranged at the abutment between the limit groove 160 and the trigger rod 120. This can reduce friction between the trigger rod 120 and the limit groove 160 during movement, reduce wear, and extend the service life of the device. The movement of the trigger rod 120 in the limit groove 160 is smoother, reducing jamming and unsmoothness, and improving the accuracy and reliability of adjustment.

[0043] The trigger rod 120 is provided with a reinforcing rib extending from the head end to the tail end of the trigger rod 120. The rigidity of the trigger rod 120 is enhanced, making it difficult to deform when subjected to force, thereby ensuring the stability and durability of the trigger rod 120.

[0044] Mounting base 100 also includes a connection hole 140 extending longitudinally through mounting base 100 and adapted to secure the base assembly to the seat. The design of connection hole 140 ensures a secure connection between the base assembly and the seat, improving the stability of the entire assembly and preventing safety hazards caused by loosening during use.

[0045] Reference Figures 1 to 4 The mounting base 100 is a circular or square flat plate with a central through-hole 170 for the cylinder shaft. Three retaining grooves 160 extend outward from the mounting base 100. These grooves 160 are evenly distributed along the circumference of the mounting base 100, with the angle between each two retaining grooves 160 being 120°. The cylinder shaft passes through the central through-hole 170 of the mounting base 100, supporting and adjusting the seat height. A trigger block 150 is positioned above the cylinder shaft, pressing the shaft to achieve height adjustment. There are three trigger rods 120, each shaped to match the retaining groove 160 and installed in its corresponding one. The ends of the three trigger rods 120 are connected together to form a single unit, which is in transmission connection with the trigger block 150. A connecting ring 110 is connected to the head end of each of the three trigger rods 120. The connecting ring 110 and the trigger rods 120 are integrally formed, ensuring synchronization between the trigger rods 120. The surface of the connecting ring 110 is frosted to increase friction, making it more stable and less likely to slip when the user is operating.

[0046] A fixing plate 130 is mounted on one side of through-hole 170 and is used to secure the trigger assembly to the mounting base 100, ensuring a secure installation and improving the structural stability and reliability of the entire device. Mounting base 100 also includes a connection hole 140, which runs longitudinally through the mounting base 100 and is suitable for securing the base assembly to the seat. Through connection hole 140, users can easily secure the base assembly to the seat using standard threaded fasteners, simplifying the installation process and improving installation efficiency.

[0047] To adjust the seat height, the user applies force to the trigger lever 120 from any of three directions, or directly to the connecting ring 110. This causes the trigger block 150 to compress the cylinder shaft. Once the cylinder shaft is compressed, the seat height can be adjusted through internal air pressure or mechanical structure. Once the adjustment is complete, the user releases the trigger lever 120 or connecting ring 110, causing the trigger block 150 to return to its initial position and the seat to remain in the new position.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A seat height adjustment device, characterized in that: include: The base assembly includes a mounting seat and a cylinder shaft. A through hole is provided in the middle of the mounting seat, the cylinder shaft passes through the through hole, and a plurality of limit grooves are provided extending outward from the mounting seat. A trigger assembly includes a trigger block and multiple trigger rods, the number and shape of the trigger rods being adapted to the limiting grooves, the ends of the multiple trigger rods being connected to the same trigger block, the trigger rods being respectively installed in the corresponding limiting grooves, the trigger rods being in transmission connection with the trigger block, and the trigger block being arranged above the cylinder shaft; When an external force is applied to the trigger rod, the trigger block presses the cylinder shaft to adjust the height of the seat.

2. A seat height adjustment device according to claim 1, characterized in that: There are three limit grooves, which are arranged at intervals of 120° along the circumference of the mounting seat. There are three trigger rods, and one trigger rod is arranged in each limit groove.

3. A seat height adjustment device according to claim 2, characterized in that: The trigger assembly further includes a connecting ring, and the connecting ring is respectively connected to the head ends of the three trigger rods.

4. A seat height adjustment device according to claim 3, characterized in that: The connecting ring, the trigger rod and the connecting ring are an integrally formed structure.

5. The seat height adjustment device according to claim 3, characterized in that: The surface of the connecting ring is frosted.

6. The seat height adjustment device according to claim 1, characterized in that: The trigger rod extends outward in a direction away from the mounting seat.

7. The seat height adjustment device according to claim 1, characterized in that: The trigger assembly includes a fixing plate, which is installed on one side of the through hole and is suitable for fixing the trigger assembly to the mounting seat.

8. The seat height adjustment device according to claim 1, characterized in that: The mounting seat is provided with an arc transition portion, and the arc transition portion is arranged at the abutment position between the limiting groove and the trigger rod.

9. The seat height adjustment device according to claim 1, characterized in that: The trigger rod is provided with a reinforcing rib, and the reinforcing rib extends from the head end to the tail end of the trigger rod.

10. The seat height adjustment device according to claim 1, characterized in that: The mounting seat is further provided with a connecting hole, which is arranged to penetrate the mounting seat in a longitudinal direction and is suitable for fixing the base assembly to the seat.

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