Chair leg and chair leg assembly

Abstract

The utility model provides a chair leg and a chair leg component, the chair leg comprises a base, the front end of the base is provided with front support parts which are bilaterally symmetrical, each front support part comprises an extension part, and the corresponding extension parts on the two front support parts obliquely extend forwards from the base and gradually expand outwards. The extending stopping position of the extending part continues to horizontally extend towards the right ahead to form the treading part, the upper end face of the treading part is a treading face tending to be horizontal, when a child sits, the feet can be placed on the treading face of the treading part or freely move outwards, and the phenomenon of stumbling cannot occur; after the pedal plate is additionally arranged on the chair legs, the pedal plate and the treading part form a step structure, so that a child can step on the pedal plate step by step, and the potential safety hazard when the child sits is completely eradicated.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a chair leg and a chair leg assembly. Background Art

[0002] As a seat that accompanies children in their studies, a learning chair plays an important role in the children's growth and learning process. Existing learning chairs have chair feet that are in contact with the ground at the lower end. The chair feet usually have multiple outwardly extending legs to provide the chair with stable support in all directions.

[0003] For example, in the chair leg patents with announcement numbers CN307866522 and CN306008365, the two legs on the front side of the chair legs are symmetrical and extend outward at an angle, and as the two legs extend forward, the distance between the two legs becomes larger and larger. This can expand the support range of the chair legs and make the seat more stable. However, when children sit down, the obliquely extended legs cannot be stepped on, and when their feet move outward, they will collide with the legs, causing safety problems such as tripping.

[0004] After adding a foot pedal to this type of chair leg, other safety problems will arise. For example, this type of chair leg is used in the foot pedal mechanism patent with announcement number CN220442284. The foot pedal in the patent is connected to a bracket, which includes a first bracket connecting part and a second bracket connecting part. The two connecting parts form an L-shaped structure, in which the first connecting part is connected to the lifting gas rod of the seat, and the foot pedal is slidably connected to the second connecting part to adjust the height of the foot pedal so that it is suitable for children of different heights. Larger children can step on the foot pedal in one step from the side of the seat and then climb onto the seat to sit down, but for smaller children, it is difficult to step on the foot pedal in one step. Since the distance between the two legs on the chair leg is too long, and the corresponding legs are all straight lines extending obliquely, there is no structure designed to cater to children's feet stepping on, so smaller children cannot step on the corresponding legs. If they step on the foot pedal directly, they are likely to step on air and collide with the chair leg, causing safety hazards when children sit down. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a chair leg, which has two extension parts that first open outward and a stepping part that extends forward at the end position of the extension part, so that the seat can provide a wide range of support while shortening the distance between the front ends of the two front supporting parts of the chair leg, so that the user can step on the stepping surface with his feet after sitting down, thereby preventing tripping when sitting down.

[0006] A chair leg assembly is further provided, wherein a footrest support and a foot pedal higher than the treading surface are arranged between two treading parts, so that the foot pedal and the treading parts form a stepped structure, so that children can step on the foot pedal step by step, thereby eliminating safety hazards when children sit.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A chair leg includes a base, the front end of the base has a left-right symmetrical front support part, the front support part includes an extension part, the corresponding extension parts on the two front support parts extend obliquely forward from the base and gradually open outward, the extension end position of the extension part continues to extend horizontally forward to form a treading part, and the upper end surface of the treading part is a treading surface tending to be horizontal.

[0009] Preferably, the tread surface is provided with textures for increasing friction; the textures can increase friction and prevent the user's feet from slipping when treading.

[0010] Preferably, the chair legs also include rear support parts symmetrically connected to the rear end of the base, and the two rear support parts extend backward from the base and gradually open outward; the rear support parts can provide support for the rear side of the seat, so that both the front and rear sides of the seat are stably supported.

[0011] Preferably, along the left-right direction, the distance between the two treading parts on the two front supporting parts ranges from 350 to 400 mm; a sufficiently large supporting range can provide sufficient supporting force for the seat.

[0012] Preferably, the tread surface width ranges from 90 to 100 mm along the left-right direction; a reasonable tread surface width range can provide sufficient treading area for the foot, making the foot more stable when stepping.

[0013] A chair leg assembly, comprising:

[0014] The chair legs;

[0015] A pedal support, connected between the two pedal parts;

[0016] The foot pedal is connected to the foot pedal support; and the foot pedal is higher than the upper end surface of the pedal portion, so that the foot pedal and the pedal portion form a step structure that is easy to step on.

[0017] Preferably, the left and right sides of the footrest support are connected to the pedal part by screws, thereby forming a reinforced structure for the two pedal parts; when the foot steps on the footrest, the two pedal parts remain stable and do not deform, and the force applied to the pedal can be transmitted to the ground via the footrest support and the pedal part. The pedal part is in direct contact with the ground and has a lower center of gravity, which prevents the seat from tipping over when the footrest is subjected to force.

[0018] Preferably, the footrest support is a cross bar with splicing parts connected to the left and right ends of the cross bar. The splicing parts are abutted against the lower end surface of the pedal part and connected by screws. The screw connection method is simple and firm, and can enhance the structural strength between the two pedal parts.

[0019] Preferably, a pillar is extended downward from the middle of the lower end of the pedal, and the pillar is connected to the pedal support along the longitudinal sliding direction. A control component is provided between the pillar and the pedal support, and the control component is configured to lock or unlock the longitudinal sliding of the pillar on the pedal support; so that it is suitable for use by children of different body shapes.

[0020] The utility model provides a chair leg and a chair leg assembly, which have the following beneficial effects compared with the prior art:

[0021] 1. The two extensions of the chair legs are opened outward to expand the support range of the chair legs and ensure the stability of the chair. If the two extensions continue to extend outward, the distance between the front ends of the two front supporting parts of the chair legs will be too large. Therefore, the stepping part of the chair legs extends straight forward instead of continuing to extend obliquely outward, which shortens the distance between the front ends of the front supporting parts. When the user sits down, his legs can be placed on the stepping surface or moved outward without tripping.

[0022] 2. After installing a foot pedal on the chair leg, the upper end of the foot pedal is higher than the tread surface of the treading part, so that the treading part and the foot pedal form a step structure, so that smaller children can climb onto the chair seat step by step by step on the tread surface and the foot pedal when sitting, and there will be no situation where the feet step on empty space and collide with the chair legs, thus eliminating the safety hazard of children when sitting.

[0023] 3. The footrest support is connected between the two treading parts and forms a reinforcement structure for the two treading parts. When the foot steps on the treading surface, the force exerted on the foot pedal will be transmitted to the two treading parts through the footrest support, and the treading parts will then transmit the force exerted on the ground. Since the treading parts are in direct contact with the ground, their center of gravity is lower. Therefore, when the child climbs onto the seat, the seat can remain stable and will not tip over. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a chair leg assembly;

[0025] Figure 2 The schematic diagram of the structure of the chair leg assembly after the pattern is set on the tread surface;

[0026] Figure 3 It is a structural schematic diagram of the lower end of the chair leg assembly;

[0027] Figure 4 is a schematic diagram of the structure of the foot pedal;

[0028] Figure 5 This is a front view of the pedal and the pedal support after they are matched;

[0029] Figure 6 is a cross-sectional view of a control assembly between a foot pedal and a foot pedal support;

[0030] Figure 7 A cross-sectional view of the annular protrusion in the control assembly after it escapes from the gear hole;

[0031] Figure 8 A schematic diagram of the structure for installing the chair foot assembly on the seat;

[0032] Fig. 9 A schematic diagram of a user climbing onto a chair seat by stepping on the chair leg assembly when sitting down;

[0033] The figures are marked as follows: 1-base, 2-extension portion, 3-pedal portion, 4-front support portion, 5-rear support portion, 6-foot support, 7-foot pedal, 8-locating pin, 9-lifting gas rod, 10-seat back support assembly, 31-pedal surface, 32-pattern, 61-sleeve, 62-joining portion, 71-pillar, 72-gear hole, 73-groove, 81-button, 82-compression spring, 83-annular protrusion, 84-protective cover. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the present invention, the term "at least one" refers to one or more than one, unless otherwise clearly defined. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0037] The specific implementation of the utility model is as follows:

[0038] like Figure 1-9 As shown, the utility model provides a chair leg, comprising:

[0039] A chair leg comprises a base 1, the front end of the base 1 has a left-right symmetrical front support portion 4, the front support portion 4 comprises an extension portion 2, the corresponding extension portions 2 on the two front support portions 4 extend obliquely forward from the base 1 and gradually open outward, the extension end position of the extension portion 2 continues to extend horizontally forward to have a tread portion 3, the upper end surface of the tread portion 3 is a tread surface 31 tending to be horizontal; so that the distance between the front ends of the two front support portions 4 is maintained within a reasonable range, so that when a child sits, the feet can be placed on the tread surface 31 of the tread portion 3 or move freely outward without tripping.

[0040] Further, if Figure 2 As shown, the tread surface 31 is provided with a pattern 32 for increasing friction; the pattern 32 is usually a stripe pattern, and the pattern 32 can increase friction and prevent the user's feet from slipping when treading.

[0041] Furthermore, the chair legs also include a rear support portion 5 symmetrically connected to the rear end of the base 1. The two rear support portions 5 extend backward from the base 1 and gradually open outward; the rear support portion 5 can provide support for the rear side of the seat, so that both the front and rear sides of the seat are stably supported.

[0042] Furthermore, along the left-right direction, the distance between the two pedal parts 3 on the two front support parts 4 ranges from 350 to 400 mm; a sufficiently large support range between the two pedal parts 3 can provide sufficient supporting force for the seat to keep the seat stable.

[0043] Furthermore, along the left-right direction, the width of the treading surface 31 ranges from 90 to 100 mm. A reasonable width range of the treading surface 31 can provide a sufficient treading area for the foot, making the foot more stable when treading.

[0044] A chair leg assembly is further provided, comprising:

[0045] The chair legs;

[0046] A foot support 6 connected between the two pedal parts 3;

[0047] The foot pedal 7 is connected to the foot pedal support 6; and the foot pedal 7 is higher than the upper end surface of the pedal portion 3, so that the foot pedal 7 and the pedal portion 3 form a stepped structure that is easy to step on.

[0048] Furthermore, the left and right sides of the footrest support 6 are connected to the pedal part 3 by screws, thereby forming a reinforced structure for the two pedal parts 3; when the foot steps on the foot pedal 7, the two pedal parts 3 remain stable and do not deform, and the force applied to the foot pedal 7 can be transmitted to the ground via the footrest support 6 and the pedal part 3. The pedal part 3 is in direct contact with the ground and has a lower center of gravity, which prevents the seat from tipping over when the foot pedal 7 is subjected to force.

[0049] Furthermore, the footrest support 6 is a crossbar, and the left and right ends of the crossbar are connected with a splicing part 61, which is abutted against the lower end surface of the pedal part 3 and connected by screws; the screw connection method is simple and firm, and can enhance the structural strength between the two pedal parts 3.

[0050] Furthermore, a support column 71 is formed by extending downward from the middle portion of the lower end of the footrest 7. The support column 71 is connected to the footrest support 6 along the longitudinal sliding direction. A control component is provided between the support column 71 and the footrest support 6. The control component is configured to lock or unlock the longitudinal sliding of the support column 71 on the footrest support 6 so as to be suitable for use by children of different body shapes.

[0051] Further, if Figure 3-7 As shown, the middle part of the pedal support 6 has a sleeve 61 with upper and lower openings, and the pillar 71 is inserted into the sleeve 61. The pillar 71 is provided with a matching hole group that passes through from front to back, and the matching hole group includes a plurality of gear holes 72 evenly distributed in the longitudinal direction. The sleeve 61 is provided with a through hole corresponding to the position of one of the gear holes 72, and every two gear holes 72 are connected by a groove 73, and the width of the groove 73 is smaller than the width of the gear hole 72; the control component between the sleeve 61 and the pillar 71 includes a positioning pin 8 that is simultaneously penetrated in the through hole and the corresponding gear hole 72, and the width of the positioning pin 8 matches the width of the groove 72; along the length direction of the positioning pin 8, the positioning pin 8 is fixed. Two annular protrusions 83 are provided on the positioning pin 8, and the width of the two annular protrusions 83 matches the width of the gear hole 72; when the foot pedal 7 stays at the predetermined position after sliding, the two annular protrusions 83 are inserted into the gear holes 72 at the front and rear ends of the pillar 71, so that the foot pedal 7 remains in a locked state; when the foot pedal 7 is to be unlocked, the positioning pin 8 is pressed to make the two annular protrusions 83 escape from the gear hole 72. At this time, the positioning pin 8 is aligned with the groove 73. At this time, the foot pedal 7 can be pulled to slide to the next position, and then the two annular protrusions 83 are inserted into the corresponding gear holes 72 again to achieve the re-locking of the position of the foot pedal 7.

[0052] Furthermore, the front end of the sleeve 8 has a concave receiving hole, and the front end of the positioning pin 8 is connected to a button 81, which is a pressure cover. A compression spring 82 is provided between the pressure cover and the bottom of the receiving hole, and the compression spring 82 can provide a reset elastic force for the button 81.

[0053] Furthermore, a protective cover 84 is connected to the rear end of the sleeve 8 , and the protective cover 84 blocks the positioning pin 8 from passing through the other end of the sleeve 8 .

[0054] like Figure 8-9As shown, a seat is provided, which includes a seat back support assembly 10, which includes a seat back and a seat, and the bottom of the seat is connected to the base 1 of the chair leg through a lifting gas rod 9. When a child sits on the seat, the height of the foot pedal 7 is first adjusted to the right position, and then the child can grab the seat and step on the pedal 3 to reach the foot pedal 7, and finally climb onto the seat to complete the sitting.

[0055] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A chair leg, characterized in that: The invention comprises a base (1), wherein the front end of the base (1) has a left-right symmetrical front support portion (4), the front support portion (4) comprises an extension portion (2), the corresponding extension portions (2) on the two front support portions (4) extend obliquely forward from the base (1) and gradually open outward, and the extension end position of the extension portion (2) continues to extend horizontally forward to form a tread portion (3), and the upper end surface of the tread portion (3) is a tread surface (31) tending to be horizontal.

2. A chair leg according to claim 1, characterized in that: The tread surface (31) is provided with patterns (32) for increasing friction.

3. The chair leg according to claim 1, characterized in that: The chair legs also include rear support portions (5) symmetrically connected to the rear end of the base (1), and the two rear support portions (5) extend obliquely backward from the base (1) and gradually open outward.

4. The chair leg according to claim 1, characterized in that: Along the left-right direction, the distance between the two treading parts (3) on the two front supporting parts (4) ranges from 350 to 400 mm.

5. The chair leg according to claim 1, characterized in that: Along the left-right direction, the width of the tread surface (31) ranges from 90 to 100 mm.

6. A chair leg assembly, characterized in that it comprises: The chair foot as claimed in claim 1; A pedal support (6) connected between the two pedal parts (3); A foot pedal (7) is connected to a foot pedal support (6); and the foot pedal (7) is raised above the upper end surface of the pedal portion (3), so that the foot pedal (7) and the pedal portion (3) form a stepped structure that is easy to step on.

7. A chair leg assembly according to claim 6, characterized in that: The left and right sides of the pedal support (6) are connected to the pedal portion (3) via screws, thereby forming a reinforcement structure for the two pedal portions (3).

8. A chair leg assembly according to claim 7, characterized in that: The pedal support (6) is a crossbar, and the left and right ends of the crossbar are connected with joint parts (61), and the joint parts (61) are abutted against the lower end surface of the pedal part (3) and connected by screws.

9. The chair leg assembly according to claim 6, characterized in that: A support column (71) is formed by extending downward from the middle of the lower end of the footrest (7), and the support column (71) is connected to the footrest support (6) in a longitudinal sliding manner. A control component is provided between the support column (71) and the footrest support (6), and the control component is configured to lock or unlock the support column (71) when it slides longitudinally on the footrest support (6).

Images