Four-way leg support structure

Abstract

The utility model discloses a four-way leg support structure which comprises a supporting seat, a leg support, a leg support, a leg support and a leg support, and is characterized in that the supporting seat is provided with a sliding area; one side of the mounting assembly is hinged to one end of the supporting seat; the ejector rod assembly is arranged in the sliding area in a sliding manner; the push rod is hinged between the mounting assembly and the ejector rod assembly and is used for pushing the ejector rod assembly to do linear reciprocating motion along the sliding area; the driving piece is used for providing driving force for pushing the push rod to slide for the mounting assembly; the telescopic rod set is hinged to the ejector rod assembly, and the ejector rod assembly drives the telescopic rod set to stretch out and draw back; the telescopic rod set is hinged to the leg support assembly, so that the leg support assembly moves along with stretching and retracting of the telescopic rod set. According to the utility model, the front-back extension range of the leg support is obviously increased, so that the leg length requirements of users with different heights and body types can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field related to seats, in particular to a four-way leg support structure. Background Art

[0002] In the field of seat design, leg rests, as an important component to improve seat comfort and practicality, are gaining more and more attention from consumers and manufacturers. Traditional four-way leg rest structures usually have the functions of lifting up and down and unfolding left and right, aiming to provide users with more personalized leg support. However, with the continuous development of the seat market and the increasing diversification of user needs, the limitations of the existing four-way leg rest structure have gradually become apparent.

[0003] First, the existing four-way leg support has a complex structure, which leads to an increase in its manufacturing and maintenance costs. The complex structure not only increases the design difficulty, but also increases the amount of materials used and the number of processing steps, making the overall weight of the product heavier and inconvenient to carry and install. At the same time, the complex structure also means a higher failure rate and maintenance cost, which brings inconvenience to consumers.

[0004] Secondly, high cost is another significant problem of the existing four-way leg support structure. Due to the complex structure and high manufacturing difficulty, the manufacturing cost of the four-way leg support is relatively high. This not only increases the product price and reduces market competitiveness, but also may limit its application in the mid- and low-end markets.

[0005] More importantly, existing four-way leg rests have limitations in the length of their front-to-back extension. Due to structural design, many four-way leg rests have a small extension range in the front-to-back direction, making it difficult to meet the leg length requirements of users of different heights and body shapes. This limitation makes it difficult for four-way leg rests to adapt to various space layouts and size requirements when applied to different styles of seats, thus limiting their scope of application and market share. Utility Model Content

[0006] In order to overcome at least one defect of the prior art, the utility model provides a four-way leg rest structure, which can solve the problem of the small extension range of the leg rest, and can adjust the position of the leg rest assembly by setting a telescopic rod group to extend the length of the entire leg rest, so as to meet the needs of different users.

[0007] The technical solution adopted by the utility model to solve the problem is:

[0008] A four-way leg support structure comprises: a support seat, the support seat having a sliding area; a mounting assembly, one side of the mounting assembly is hinged to one end of the support seat; a top rod assembly, the top rod assembly is slidably arranged in the sliding area; a push rod, the push rod is hinged between the mounting assembly and the top rod assembly, and is used to push the top rod assembly to perform linear reciprocating motion along the sliding area; a driving member, the driving member is used to provide the mounting assembly with a driving force to push the push rod to slide; a telescopic rod group, the telescopic rod group is hinged to the top rod assembly, and the top rod assembly drives the telescopic rod group to be telescoped; a leg support assembly, the telescopic rod group is hinged to the leg support assembly, so that the leg support assembly is displaced following the telescopic extension and retraction of the telescopic rod group.

[0009] By adopting the above solution, the structure is simplified and the manufacturing cost is reduced. At the same time, a telescopic rod group is introduced and hinged with the top rod assembly and the leg support assembly, so that the leg support assembly can be telescopically adjusted in the front and rear directions. This design significantly increases the front and rear extension range of the leg support, thereby better meeting the leg length requirements of users of different heights and body shapes. In addition, this design also enables the four-way leg support structure to better adapt to the spatial layout and size requirements of different styles of seats, expanding its scope of application and market share.

[0010] Further, the support seat includes: a first side plate, a first sliding area is arranged on the first side plate; a second side plate, a second sliding area is arranged on the second side plate; a support seat synchronization rod, the support seat synchronization rod is connected between the first side plate and the second side plate; a support seat fixing rod, the support seat fixing rod is connected between the first side plate and the second side plate; wherein, the first side plate is parallel to the second side plate, and the support seat synchronization rod is parallel to the support seat fixing rod.

[0011] By adopting the above solution, the support seat forms a stable support structure, which can provide a stable support effect for the leg support assembly.

[0012] Further, the telescopic rod group includes a first connecting rod group and a second connecting rod group which are symmetrically arranged, and the first connecting rod group and the second connecting rod group both include: a first connecting rod, one end of which is hinged to the support seat fixing rod to limit the telescopic starting point of the telescopic rod group; a second connecting rod, one end of which is hinged to the other end of the first connecting rod, and a hinge port is provided on the second connecting rod, and the hinge port of the first connecting rod group, the hinge port of the second connecting rod group and the end of the top rod assembly are hinged; a third connecting rod, one end of which is hinged to the other end of the second connecting rod, and the other end of the third connecting rod is hinged to the leg support assembly.

[0013] By adopting the above scheme, the first connecting rod group and the second connecting rod group form two synchronously changing parallelogram structures. When the top rod assembly performs linear reciprocating motion along the sliding area of ​​the support seat under the action of the driving member, it is connected to the second connecting rod through the hinge interface to drive the second connecting rod to rotate. Since the first connecting rod is hinged to the fixed rod of the support seat, it serves as a fixed point to limit the starting point of the movement of the telescopic rod group. Therefore, the rotation of the second connecting rod will drive the movement of the third connecting rod, thereby realizing the position adjustment of the leg support assembly in the front and rear directions.

[0014] Furthermore, a distance from the hinge port to one end of the second connecting rod is smaller than a distance from the hinge port to the other end of the second connecting rod.

[0015] By adopting the above solution, the top rod assembly can change the overall larger telescopic length of the telescopic rod group with a small displacement, the shorter arm end of the second connecting rod limits the maximum extension distance of the telescopic rod group, and the longer arm end provides a larger contraction space. This design enables the telescopic rod group to be accurately adjusted according to actual needs.

[0016] Furthermore, the mounting assembly includes a first mounting member, a second mounting member and a mounting member fixing rod connected therebetween for being assembled and fixed with the seat, and the mounting member fixing rod is provided with a driving member mounting frame for fixing the driving member.

[0017] By adopting the above solution, the mounting assembly can stably fix the leg support structure on the seat to ensure that it will not loosen or fall off during use. The mounting member fixing rod helps to achieve a stable connection between the first mounting member and the second mounting member.

[0018] Furthermore, the driving member includes a movable part and a fixed part, one of the movable part and the fixed part is connected to the driving member mounting frame, and the other is hinged to the support seat fixing rod.

[0019] By adopting the above solution, the driving member can work stably and provide reliable power support for the telescopic function of the leg rest.

[0020] Furthermore, a support platform is provided between the other end of the third connecting rod and the leg support assembly, the support platform is fixedly connected to the leg support assembly, and the support platform is hinged to the other end of the third connecting rod.

[0021] By adopting the above solution, through the assembly of the bracket platform, it is more conducive to achieving a stable assembly effect between the third connecting rod and the leg support assembly with a height difference.

[0022] Furthermore, the push rod assembly includes: a sliding rod, one end of which is slidably disposed in the first sliding area, and the other end is slidably disposed in the second sliding area, and both ends of the sliding rod are hinged with a push rod; a sliding push rod, one end of which is fixed to the middle part of the sliding rod, and the other end is hinged to the hinge port.

[0023] By adopting the above solution, two push rods are respectively hinged at the two ends of the sliding rod to push the sliding rod to move synchronously along the first sliding area and the second sliding area, thereby driving the sliding top cover to move, and then driving the telescopic rod group to extend and retract.

[0024] Furthermore, the push rod includes a first assembly portion hinged to the mounting assembly, a second assembly portion hinged to the push rod assembly, and a connecting portion connected between the first assembly portion and the second assembly portion, and the first assembly portion and the second assembly portion are not in the same plane.

[0025] By adopting the above solution, the mutual interference between the push rod and the installation assembly during movement can be avoided, and at the same time, it can better adapt to complex installation environments and improve the flexibility and feasibility of installation.

[0026] Furthermore, a telescopic slide rail is provided between the leg rest assembly and the support seat, and the telescopic direction of the telescopic slide rail is consistent with the sliding direction of the top rod assembly along the sliding area.

[0027] By adopting the above scheme, the telescopic slide rail provides a clear guide for the leg rest assembly, ensuring that it moves along a predetermined path during the telescopic process, avoiding deviation or shaking, and the telescopic slide rail can withstand various forces generated by the leg rest assembly during the displacement process, including gravity, pressure applied by the user, etc. This load-bearing and supporting capacity ensures the stability and safety of the leg rest assembly during use; at the same time, when the top rod assembly slides, the leg rest assembly can correspondingly telescope along the telescopic slide rail, thereby realizing the coordinated work of the entire leg rest structure.

[0028] In summary, the four-way leg support structure provided by the utility model has the following technical effects:

[0029] 1. Enhanced reach: By introducing a telescopic rod assembly and articulating it with the top rod assembly and the leg support assembly, the four-way leg support structure significantly increases the front and rear reach of the leg support. This design can better meet the leg length requirements of users of different heights and body shapes, improving the adaptability and user experience of the product;

[0030] 2. Simplified structure and reduced cost: By optimizing the structural design, the four-way leg support structure simplifies the overall structure and reduces the number of unnecessary parts and drive components. This not only reduces manufacturing costs, but also improves production efficiency, making the product more competitive in the market;

[0031] 3. Flexibility and applicability: The four-way leg support structure can flexibly adapt to the spatial layout and size requirements of different styles of seats. Whether it is a home chair, an office chair or a vehicle seat, the appropriate telescopic rod group length can be customized to meet specific needs. This design expands the product's scope of application and market share;

[0032] 4. Easy to assemble and maintain: Due to its exquisite and compact structure, the four-way leg support structure is more convenient and quick in the process of assembly and maintenance. It reduces the complicated installation steps and maintenance work, and lowers the user's use threshold and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0034] Figure 2 This is a schematic diagram of a partial explosion structure of an embodiment of the utility model;

[0035] Figure 3 This is a schematic diagram of the push rod structure of an embodiment of the utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the telescopic rod group according to an embodiment of the utility model;

[0037] Figure 5 This is a schematic diagram of the structure of the installation assembly of an embodiment of the utility model;

[0038] Figure 6 This is a schematic diagram of the installation status motion indication structure of an embodiment of the utility model.

[0039] The meanings of the reference numerals are as follows: 1. support seat; 11. first side plate; 111. first sliding area; 12. second side plate; 121. second sliding area; 13. support seat synchronization rod; 14. support seat fixing rod; 15. sliding area; 2. mounting assembly; 21. first mounting member; 211. first connecting surface; 212. second connecting surface; 213. assembly surface; 22. second mounting member; 23. mounting member fixing rod; 231. drive member mounting member Mounting rack; 3. Push rod assembly; 31. Sliding rod; 32. Sliding push rod; 4. Push rod; 41. First assembly part; 42. Second assembly part; 43. Connecting part; 5. Driving member; 51. Movable part; 52. Fixed part; 6. Telescopic rod group; 61. First connecting rod group; 611. First connecting rod; 612. Second connecting rod; 613. Third connecting rod; 614. Hinge interface; 62. Second connecting rod group; 7. Leg support assembly; 8. Bracket platform; 9. Telescopic slide rail. DETAILED DESCRIPTION

[0040] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0044] Embodiment 1 of the present utility model is referred to Figure 1-Figure 5As shown, a four-way leg support structure is disclosed, including a support seat 1, a mounting assembly 2, a top rod assembly 3, a push rod 4, a driving member 5, a telescopic rod group 6 and a leg support assembly 7, wherein the support seat 1 has a sliding area 15, the push rod 4 is hinged between the mounting assembly 2 and the top rod assembly 3, and is used to push the top rod assembly 3 to make a linear reciprocating motion along the sliding area 15, the driving member 5 is used to provide the mounting assembly 2 with a driving force to push the push rod 4 to slide, the telescopic rod group 6 is hinged with the top rod assembly 3, the top rod assembly 3 drives the telescopic rod group 6 to extend and retract, and the telescopic rod group 6 is hinged with the leg support assembly 7, so that the leg support assembly 7 moves following the extension and retraction of the telescopic rod group 6. Thus, the structure is simplified and the manufacturing cost is reduced. At the same time, the telescopic rod group 6 is introduced and is hinged with the top rod assembly 3 and the leg support assembly 7, so that the leg support assembly 7 can be telescopically adjusted in the front and rear directions. This design significantly increases the front and rear extension range of the leg support, so that the leg length requirements of users of different heights and body shapes can be better met. In addition, this design also enables the four-way leg support structure to better adapt to the spatial layout and size requirements of different styles of seats, expanding its scope of application and market share.

[0045] Specifically, in the present embodiment 1, the sliding area 15 includes a first sliding area 111 and a second sliding area 121, the support seat 1 includes a first side plate 11, a second side plate 12, a support seat synchronization rod 13 and a support seat fixing rod 14, the first sliding area 111 is arranged on the first side plate 11, the second sliding area 121 is arranged on the second side plate 12, the support seat synchronization rod 13 is connected between the first side plate 11 and the second side plate 12, and the support seat fixing rod 14 is connected between the first side plate 11 and the second side plate 12. A stable quadrilateral structure is formed by the first side panel 11, the second side panel 12, the support seat synchronization rod 13 and the support seat fixing rod 14; preferably, the first side panel 11 is parallel to the second side panel 12, and the support seat synchronization rod 13 is parallel to the support seat fixing rod 14, so that the quadrilateral structure is a regular quadrilateral; preferably, the support seat synchronization rod 13 and the support seat fixing rod 14 are fixed at intervals in the middle of the first side panel 11 and the second side panel 12, thereby reserving a certain accommodation space for components such as the telescopic rod group 6 located at the ends of the first side panel 11 and the second side panel 12.

[0046] One side of the mounting assembly 2 is hinged to one end of the support seat 1, and the mounting assembly 2 includes a first mounting member 21, a second mounting member 22 and a mounting member fixing rod 23. Specifically, the first mounting member 21 and the second mounting member 22 are integrally bent sheet metal structures, which are bent twice to form a first connecting surface 211, a second connecting surface 212 and an assembly surface 213. The first connecting surface 211 of the first mounting member 21 is hinged to one end of the first side plate 11, the first connecting surface 211 of the second mounting member 22 is hinged to one end of the second side plate 12, and the second connecting surface 212 of the first mounting member 21 is hinged to one end of the second side plate 12. It is hinged to one end of the push rod 4, the second connecting surface 212 of the second mounting member 22 is hinged to one end of another push rod 4, the assembly surface 213 of the first mounting member 21 and the assembly surface 213 of the second mounting member 22 are located in the same plane, and are fixed to the seat by bolts and other fixing parts, one end of the mounting member fixing rod 23 passes through the first connecting surface 211 of the first mounting member 21 and is fixed to the second connecting surface 212 of the first mounting member 21, and the other end of the mounting member fixing rod 23 passes through the first connecting surface 211 of the second mounting member 22 and is fixed to the second connecting surface 212 of the second mounting member 22.

[0047] A driving member mounting frame 231 for fixing the driving member 5 is provided on the mounting member fixing rod 23, and the driving member 5 is assembled in the driving member mounting frame 231. Specifically, the driving member 5 includes a movable part 51 and a fixed part 52, and one of the movable part 51 and the fixed part 52 is connected to the driving member mounting frame 231, and the other is hinged to the support seat fixing rod 14. The driving member 5 can work stably and provide reliable power support for the telescopic function of the leg rest. Preferably, the driving member 5 is a slider motor, a screw motor or a push rod 4 motor; in this embodiment 1, the driving member 5 is a screw motor, the movable part 51 is the screw of the screw motor, the fixed part 52 is the slider on the screw motor, the end of the screw is hinged to the support seat fixing rod 14, and a bearing is arranged between the end of the screw and the screw to prevent the end from rotating with the screw, and the slider is fixedly assembled in the driving member mounting frame 231. When the screw motor moves, since the slider is fixed by the driving member mounting frame 231, the rotation of the screw will push the support seat synchronization rod 13 to move, thereby causing rotation between the support seat 1 and the mounting assembly 2.

[0048] The push rod assembly 3 is slidably arranged in the sliding area 15, so when the support seat 1 and the mounting assembly 2 rotate, the push rod assembly 3 will be synchronously driven to slide. Specifically, the push rod assembly 3 includes a sliding rod 31 and a sliding push rod 32, one end of the sliding rod 31 is slidably arranged in the first sliding area 111, and the other end is slidably arranged in the second sliding area 121, and both ends of the sliding rod 31 are hinged with a push rod 4, one end of the sliding push rod 32 is fixed to the middle part of the sliding rod 31, and the other end is hinged to the telescopic rod group 6 for driving the telescopic rod group 6 to extend and retract. According to this arrangement, the two push rods 4 are respectively hinged to the two ends of the sliding rod 31 to push the sliding rod 31 to move synchronously along the first sliding area 111 and the second sliding area 121, thereby driving the sliding top cover to move, and then driving the telescopic rod group 6 to extend and retract.

[0049] In some embodiments, the push rod 4 includes a first assembly portion 41 hinged to the mounting assembly 2, a second assembly portion 42 hinged to the push rod assembly 3, and a connecting portion 43 connected between the first assembly portion 41 and the second assembly portion 42, and the first assembly portion 41 and the second assembly portion 42 are not in the same plane. This arrangement can avoid mutual interference between the push rod 4 and the mounting assembly 2 during movement. At the same time, it can better adapt to complex installation environments and improve the flexibility and feasibility of installation.

[0050] In this embodiment 1, the telescopic rod group 6 includes a first connecting rod group 61 and a second connecting rod group 62 which are symmetrically arranged. The first connecting rod group 61 and the second connecting rod group 62 both include a first connecting rod 611, a second connecting rod 612 and a third connecting rod 613. One end of the first connecting rod 611 is hinged to the support seat fixing rod 14 to limit the telescopic starting point of the telescopic rod group 6. One end of the second connecting rod 612 is hinged to the other end of the first connecting rod 611. A hinge port 614 is provided on the second connecting rod 612. The hinge port 614 of the first connecting rod group 61, the hinge port 614 of the second connecting rod group 62 and the other end of the sliding top rod 32 of the top rod assembly 3 are hinged. One end of the third connecting rod 613 is hinged to the other end of the second connecting rod 612, and the other end of the third connecting rod 613 is hinged to the leg support assembly 7. Preferably, a support platform 8 is provided between the other end of the third connecting rod 613 and the leg support assembly 7, and the support platform 8 is fixedly connected to the leg support assembly 7, and the support platform 8 is hinged to the other end of the third connecting rod 613. Through the assembly of the support platform 8, it is more conducive to completing the stable assembly effect between the third connecting rod 613 and the leg support assembly 7 with a height difference. In this way, the first connecting rod group 61 and the second connecting rod group 62 form two synchronously changing parallelogram structures. When the top rod assembly 3 performs a linear reciprocating motion along the sliding area 15 of the support seat 1 under the action of the driving member 5, it is connected to the second connecting rod 612 through the hinge port 614 to drive the second connecting rod 612 to rotate. Since the first connecting rod 611 is hinged to the support seat fixed rod 14, as a fixed point to limit the movement starting point of the telescopic rod group 6, the rotation of the second connecting rod 612 will drive the movement of the third connecting rod 613, thereby realizing the position adjustment of the leg support assembly 7 in the front and rear directions.

[0051] It should be noted that the distance from the hinge port 614 to one end of the second connecting rod 612 is smaller than the distance from the hinge port 614 to the other end of the second connecting rod 612, so that the top rod assembly 3 can change the overall larger telescopic length of the telescopic rod group 6 through a smaller displacement, and the shorter force arm end of the second connecting rod 612 limits the maximum extension distance of the telescopic rod group 6, while the longer force arm end provides a larger contraction space. This design allows the telescopic rod group 6 to be accurately adjusted according to actual needs.

[0052] In order to improve the sliding stability of the leg rest assembly 7, optionally, in this embodiment 1, a telescopic slide rail 9 is arranged between the leg rest assembly 7 and the support seat 1, and the telescopic direction of the telescopic slide rail 9 is consistent with the sliding direction of the top rod assembly 3 along the sliding area 15. The telescopic slide rail 9 provides a clear guide for the leg rest assembly 7 to ensure that it moves along a predetermined path during the telescopic process, avoiding deviation or shaking. The telescopic slide rail 9 can withstand various forces generated by the leg rest assembly 7 during the displacement process, including gravity, pressure applied by the user, etc. This load-bearing and supporting capacity ensures the stability and safety of the leg rest assembly 7 during use; at the same time, when the top rod assembly 3 slides, the leg rest assembly 7 can be correspondingly telescoped along the telescopic slide rail 9, thereby realizing the coordinated work of the entire leg rest structure.

[0053] It should be noted that the telescopic slide rail 9 includes at least two layers of telescopic structure. In the present embodiment 1, the telescopic slide rail 9 is three-layered, and a telescopic slide rail 9 is arranged on the first side panel 11 and the second side panel 12. One layer of the telescopic slide rail 9 is fixed to the first side panel 11 or the second side panel 12; another layer of the telescopic slide rail 9 is fixed to the end of the leg rest assembly 7, and the two telescopic slide rails 9 are respectively fixed at the two ends of the leg rest assembly 7 to provide a stable sliding effect; the last layer of the telescopic slide rail 9 is located between the first layer and the other layer, and can extend the extension length.

[0054] See also Figure 1 , Figure 6 As shown, when in use, the driving member 5 starts to run, pushing the support seat synchronization rod 13 forward, thereby causing the support seat 1 to rotate and move forward and upward, so that the calf of the person on the seat is lifted forward, and at the same time, the push rod 4 drives the sliding rod 31 to move along the first sliding area 111 and the second sliding area 121, and the sliding top rod 32 drives the hinge port 614 to move forward of the person, thereby causing the telescopic rod group 6 to extend, pushing the leg rest assembly 7 forward, and achieving the effect of extending and lengthening the leg rest assembly 7.

[0055] In summary, the four-way leg support structure provided by the utility model has the following technical effects:

[0056] 1. Enhanced reach: By introducing the telescopic rod assembly 6 and articulating it with the top rod assembly 3 and the leg support assembly 7, the four-way leg support structure significantly increases the front and rear reach of the leg support. This design can better meet the leg length requirements of users of different heights and body shapes, and improves the adaptability and user experience of the product;

[0057] 2. Simplified structure and reduced cost: By optimizing the structural design, the four-way leg support structure simplifies the overall structure and reduces the number of unnecessary parts and driving parts 5. This not only reduces the manufacturing cost, but also improves the production efficiency, making the product more competitive in the market;

[0058] 3. Flexibility and applicability: The four-way leg support structure can flexibly adapt to the spatial layout and size requirements of different styles of seats. Whether it is a home chair, an office chair or a vehicle seat, the appropriate length of the telescopic rod group 6 can be customized to meet specific needs. This design expands the product's scope of application and market share;

[0059] 4. Easy to assemble and maintain: Due to its exquisite and compact structure, the four-way leg support structure is more convenient and quick in the process of assembly and maintenance. It reduces the complicated installation steps and maintenance work, and lowers the user's use threshold and maintenance cost.

[0060] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A four-way leg support structure, characterized in that: include: A support base (1), wherein the support base (1) has a sliding area (15); A mounting assembly (2), one side of the mounting assembly (2) being hinged to one end of the support seat (1); A push rod assembly (3), wherein the push rod assembly (3) is slidably disposed in the sliding area (15); A push rod (4), the push rod (4) being hinged between the mounting assembly (2) and the push rod assembly (3), and being used to push the push rod assembly (3) to perform linear reciprocating motion along the sliding area (15); A driving member (5), the driving member (5) being used to provide the mounting assembly (2) with a driving force for pushing the push rod (4) to slide; A telescopic rod group (6), wherein the telescopic rod group (6) is hinged to the top rod assembly (3), and the top rod assembly (3) drives the telescopic rod group (6) to extend and retract; The leg support assembly (7) is hinged to the telescopic rod assembly (6) so that the leg support assembly (7) moves in response to the extension and retraction of the telescopic rod assembly (6).

2. A four-way leg support structure according to claim 1, characterized in that: The support base (1) comprises: A first side plate (11), wherein a first sliding area (111) is provided on the first side plate (11); A second side plate (12), wherein a second sliding area (121) is provided on the second side plate (12); A support seat synchronization rod (13), wherein the support seat synchronization rod (13) is connected between the first side plate (11) and the second side plate (12); A support seat fixing rod (14), wherein the support seat fixing rod (14) is connected between the first side plate (11) and the second side plate (12); Wherein, the first side plate (11) is parallel to the second side plate (12), and the support seat synchronization rod (13) is parallel to the support seat fixing rod (14).

3. A four-way leg support structure according to claim 2, characterized in that: The telescopic rod group (6) comprises a first connecting rod group (61) and a second connecting rod group (62) which are symmetrically arranged, and the first connecting rod group (61) and the second connecting rod group (62) both comprise: A first connecting rod (611), one end of the first connecting rod (611) being hinged to the support seat fixing rod (14) to limit the telescopic starting point of the telescopic rod group (6); A second connecting rod (612), one end of the second connecting rod (612) being hinged to the other end of the first connecting rod (611), a hinge port (614) being provided on the second connecting rod (612), and the hinge port (614) of the first connecting rod group (61), the hinge port (614) of the second connecting rod group (62) and the end of the push rod assembly (3) being hinged; A third connecting rod (613), one end of the third connecting rod (613) is hinged to the other end of the second connecting rod (612), and the other end of the third connecting rod (613) is hinged to the leg support assembly (7).

4. A four-way leg support structure according to claim 3, characterized in that: The distance from the hinge port (614) to one end of the second connecting rod (612) is smaller than the distance from the hinge port (614) to the other end of the second connecting rod (612).

5. The four-way leg support structure according to claim 2, characterized in that: The mounting assembly (2) comprises a first mounting member (21) for being assembled and fixed to a seat, a second mounting member (22) and a mounting member fixing rod (23) connected therebetween, wherein a driving member mounting frame (231) for fixing the driving member (5) is provided on the mounting member fixing rod (23).

6. A four-way leg support structure according to claim 5, characterized in that: The driving member (5) comprises a movable part (51) and a fixed part (52), one of the movable part (51) and the fixed part (52) being connected to the driving member mounting frame (231), and the other being hinged to the support seat fixing rod (14).

7. The four-way leg support structure according to claim 3, characterized in that: A support platform (8) is provided between the other end of the third connecting rod (613) and the leg support assembly (7); the support platform (8) is fixedly connected to the leg support assembly (7); and the support platform (8) is hinged to the other end of the third connecting rod (613).

8. The four-way leg support structure according to claim 3, characterized in that: The push rod assembly (3) comprises: A sliding rod (31), one end of the sliding rod (31) is slidably disposed in the first sliding area (111), and the other end of the sliding rod (31) is slidably disposed in the second sliding area (121), and both ends of the sliding rod (31) are hingedly connected to a push rod (4); A sliding push rod (32), one end of which is fixed to the middle of the sliding rod (31), and the other end of which is hinged to the hinge port (614).

9. A four-way leg support structure according to any one of claims 1 to 8, characterized in that: The push rod (4) comprises a first assembly portion (41) hinged to the mounting assembly (2), a second assembly portion (42) hinged to the push rod assembly (3), and a connecting portion (43) connected between the first assembly portion (41) and the second assembly portion (42), wherein the first assembly portion (41) and the second assembly portion (42) are not in the same plane.

10. A four-way leg support structure according to any one of claims 1 to 8, characterized in that: A telescopic slide rail (9) is provided between the leg support assembly (7) and the support seat (1), and the telescopic direction of the telescopic slide rail (9) is consistent with the direction in which the top rod assembly (3) slides along the sliding area (15).

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