Lifting pedal and seat

Abstract

The utility model provides a lifting pedal and a seat, the lifting pedal comprises a pedal assembly, a bolt, a control structure and a bolt, the pedal assembly comprises a support and a pedal, the pedal comprises a pedal body and a lifting column connected to the lower end of the pedal body, and the lifting column is connected to the support in a sliding mode in the longitudinal direction; the control structure comprises an adjusting hole group and a through hole opposite to the adjusting hole group; the adjusting hole group comprises a plurality of gear holes which are distributed at intervals in the longitudinal direction, and every two gear holes are communicated through a channel extending in the longitudinal direction; the bolt is arranged between the through hole and the adjusting hole group in a penetrating manner and comprises a small-diameter section and a large-diameter section; according to the pedal, the structure of the lifting pedal is optimized, bolts do not need to be disassembled and assembled repeatedly during adjustment, and the large-diameter section and the small-diameter section can be matched with the gear holes and the channels respectively only by controlling the bolts, so that the lifting of the pedal can be controlled; the adjusting process of the pedal is simple and efficient; the lifting pedal is mounted on a seat, so that the use experience of the seat can be improved.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a lifting footrest and a seat. Background Art

[0002] As a seat that accompanies children in their studies, a learning seat plays an important role in the children's growth and learning process. Existing learning seats are provided with a liftable footrest at the bottom so that the feet of children of different body shapes can be supported after sitting.

[0003] For example, in the base patent with announcement number CN220571878, a plurality of screw holes are provided on the longitudinal edge of the lifting column connected to the footrest, and a positioning bolt is installed on the support tube connected to the lifting column. When the lifting column is adjusted to a certain height, the footrest can be fixed at the corresponding height through the cooperation of the positioning bolt and the corresponding screw hole, so as to support the feet of children of different body shapes on the seat; however, this structural design is inconvenient to adjust. Each time the height of the footrest is adjusted, the positioning bolt needs to be removed, the footrest needs to be adjusted to a predetermined height, and finally the positioning bolt needs to be installed in the corresponding screw hole. The whole adjustment process is relatively cumbersome and the adjustment efficiency is not high; installing such a footrest on the seat will affect the user experience of the seat. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a lifting pedal, which does not require repeated disassembly and assembly of bolts. The pedal can be switched between a locked state and an adjustment state by controlling the latch so that the large diameter section and the small diameter section can cooperate with the gear hole and the groove respectively, thereby realizing the lifting and lowering adjustment of the pedal; the lifting pedal structure is optimized to make the adjustment process of the pedal simple and efficient.

[0005] A seat is further provided, on which the lifting footrest is installed, so that a seated child can quickly adjust the height of the footrest, so that the footrest quickly adapts to the child's body shape and provides support for the feet, thereby improving the user experience of the seat.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A lifting footrest, comprising:

[0008] The pedal assembly comprises a support and a pedal, wherein the pedal comprises a pedal and a lifting column connected to the lower end of the pedal, and the lifting column is connected to the support in a longitudinally sliding manner;

[0009] The control structure includes an adjustment hole group and a through hole opposite to the adjustment hole group; the adjustment hole group includes a plurality of gear holes arranged at intervals in the longitudinal direction, and each two gear holes are connected by a longitudinally extending groove; the through hole is arranged on one of the support and the lifting column, and the adjustment hole group is arranged on the other of the support and the lifting column;

[0010] A latch, the latch is inserted between the through hole and the adjustment hole group, and the latch includes a small diameter section and a large diameter section; the width of the small diameter section matches the width of the groove, and the width of the large diameter section matches the width of the gear hole;

[0011] The upgraded pedal has a locking state and an adjustment state. When the lifting pedal is in the locking state, the large diameter section of the pin fits in one of the gear holes to keep the pedal fixed; when the lifting pedal is switched to the adjustment state, under the action of external force, the large diameter section of the pin can escape from the gear hole and align the small diameter section with the groove, so that the pedal can be raised and lowered; when the pedal is raised and lowered to a predetermined position, the large diameter section of the pin can fit in the corresponding gear hole, and the lifting pedal is switched back to the locking state.

[0012] Preferably, the through hole is arranged on the support, and the adjustment hole group is arranged on the lifting column; when the foot pedal is raised or lowered, the lifting column can be raised or lowered while the latch remains stationary.

[0013] Preferably, when the lifting pedal is switched from the adjustment state back to the locking state, the latch can be elastically reset and the large diameter section can cooperate with the corresponding gear hole; there is no need to apply external force to the latch again to switch the lifting pedal from the adjustment state back to the locking state.

[0014] Preferably, one end of the latch passes through the support, and a button that is easy to press is connected to the end of the latch that passes through the support, and a spring is provided between the button and the support to provide elastic reset force for the latch; the button and the spring can simplify the adjustment process of the lifting foot pedal to a pressing process, making the adjustment of the lifting foot pedal more convenient.

[0015] Preferably, a receiving hole for accommodating the button is provided on the support, a guide rib is provided on the hole wall of the receiving hole, a guide groove is provided on the side of the button, and the guide rib is slidably connected to the guide groove; so that the button will not deviate or rotate when pressed.

[0016] Preferably, the other end of the latch also passes through the support, and the other end of the latch is connected to a limiting cap; when the latch is elastically reset, the limiting cap abuts against the support to limit the latch from falling out of the pedal assembly.

[0017] Preferably, a protective cover for shielding the limiting cap is provided at the outer end of the support, so that the appearance of the pedal is more concise.

[0018] Preferably, the lifting column is a hollow tubular structure, and the adjustment control group penetrates the tube wall of the lifting column in the front-to-back direction; the latch is provided with two large-diameter sections spaced apart from each other; when the lifting pedal is in a locked state, the two large-diameter sections respectively cooperate with the gear holes on the tube walls at the front and rear ends of the lifting column; when the lifting pedal is in an adjustment state, the two large-diameter sections are respectively separated from the gear holes on the tube walls at the front and rear ends of the lifting column; the front and rear ends of the pedal can be lifted or locked at the same time, thereby ensuring the stability of the pedal.

[0019] Preferably, the latch is a cylindrical pin, part of the outer wall of the cylindrical pin is milled flat while part remains as it is, forming a flat small diameter section and an annular large diameter section; so that the latch can be directly formed by milling.

[0020] A seat comprises the lifting footrest.

[0021] The utility model provides a lifting footrest and a seat, which have the following beneficial effects compared with the prior art:

[0022] 1. When adjusting the lifting and lowering of the pedal, the pedal can be raised and lowered in the adjustment state and the locking state only by applying external force to the latch, without repeatedly disassembling and assembling the bolts, which simplifies the lifting and lowering adjustment process of the pedal and improves the adjustment efficiency.

[0023] 2. The lifting footrest is installed on the seat so that children can quickly adjust the height of the footrest to match their body shape, thereby providing support for the feet and improving the user experience of the seat. 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 pedal;

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

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

[0030] Figure 7 This is a cross-sectional view of the large diameter section 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 part, 3-treading part, 4-front supporting part, 5-rear supporting part, 6-support, 7-pedal, 8-latch, 8a-small diameter section, 9-lifting gas rod, 10-seat back support assembly, 31-treading surface, 32-pattern, 61-sleeve, 62-joining part, 71-lifting column, 72-gear hole, 73-groove, 81-button, 82-spring, 83-large diameter section, 84-protective cover, 85-through hole, 86-guide rib, 87-accommodating hole, 88-guide groove, 89-limiting cap. 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 lifting footrest, which is installed on a chair foot. The chair foot includes:

[0039] The base 1 has a left-right symmetrical front support portion 4 at the front end thereof, and the front support portion 4 includes 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 to the front with a pedal portion 3, and the upper end surface of the pedal portion 3 is a horizontal pedal surface 31; 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 pedal surface 31 of the pedal 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] Further, the lifting footrest includes:

[0045] The pedal assembly includes a support 6 and a pedal, wherein the pedal includes a pedal 7 and a lifting column 71 connected to the lower end of the pedal 7, and the lifting column 71 is connected to the support 6 by sliding along the longitudinal direction; the support 6 is connected between the two treading parts 3; and the pedal 7 is raised upwards above the upper end surface of the treading part 3, so that the pedal 7 and the treading part 3 form a step structure that is convenient for treading;

[0046] The control structure includes an adjustment hole group and a through hole 85 opposite to the adjustment hole group; the adjustment hole group includes a plurality of gear holes 72 arranged at intervals in the longitudinal direction, and each two gear holes 72 are connected through a longitudinally extending groove 73; the through hole 85 is provided on one of the support 6 and the lifting column 71, and the adjustment hole group is provided on the other of the support 6 and the lifting column 71;

[0047] The latch 8 is disposed between the through hole 85 and the adjustment hole group. The latch 8 includes a small diameter section 8a and a large diameter section 83. The width of the small diameter section 8a matches the width of the groove 73, and the width of the large diameter section 83 matches the width of the gear hole 72.

[0048] The upgraded pedal has a locking state and an adjusting state. When the lifting pedal is in the locking state, the large diameter section 83 of the latch 8 is engaged in one of the gear holes 72 to keep the pedal fixed; when the lifting pedal is switched to the adjusting state, under the action of external force, the large diameter section 83 of the latch 8 can escape from the gear hole 72 and align the small diameter section 8a with the groove 73, so that the pedal can be raised and lowered; when the pedal is raised and lowered to a predetermined position, the large diameter section 83 of the latch 8 can be engaged with the corresponding gear hole 72, and the lifting pedal is switched back to the locking state.

[0049] Furthermore, the left and right sides of the 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 pedal 7, the two pedal parts 3 remain stable and do not deform, and the force applied to the pedal 7 can be transmitted to the ground via the 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 pedal 7 from causing the seat to tip over when subjected to force.

[0050] Furthermore, the 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 treading part 3 and connected by screws; the screw connection method is simple and firm, and can enhance the structural strength between the two treading parts 3.

[0051] Further, the support 6 has a sleeve 61 in the middle, and the lifting column 71 is slidably connected in the sleeve 61. There are two ways to set the through hole 85 and the adjustment hole group. The first way is that the through hole 85 is set on the lifting column 71, and the adjustment hole group is set on the sleeve 61 of the support 6, so that the latch 8 will move up and down with the lifting column 71 during adjustment; this embodiment is mainly described in the second setting mode, and the second mode is to

[0052] The through hole 85 is arranged on the support 6, and the adjustment hole group is arranged on the lifting column 71; in this way, when the pedal is raised or lowered, the lifting column 71 can be raised or lowered while the latch 8 remains stationary, making the adjustment of the pedal easier.

[0053] Furthermore, the latch 8 has an elastic reset function. When the lifting pedal is switched from the adjustment state to the locked state, the latch 8 can be elastically reset and the large diameter section 83 can be matched with the corresponding gear hole 72; there is no need to apply external force to the latch 8 again, so that the lifting pedal can be switched from the adjustment state to the locked state; specifically, one end of the latch 8 passes through the support 6, and the end of the latch 8 passing through the support 6 is connected to a button 81 that is easy to press, and a spring 82 that provides elastic reset force for the latch 8 is provided between the button and the support 6; the button 6 and the spring 8 can simplify the adjustment process of the lifting pedal to a pressing process, making the adjustment of the lifting pedal more convenient.

[0054] Furthermore, the support 6 is provided with a receiving hole 87 for accommodating the button 81, the hole wall of the receiving hole 87 is provided with a guide rib 86, the side of the button 81 is provided with a guide groove 88, and the guide rib 86 is slidably connected to the guide groove 88, so that the button 81 will not deviate or rotate when pressed.

[0055] Furthermore, the other end of the latch 8 also passes through the support 6, and the other end of the latch 8 is connected to a limiting cap 89; when the latch 8 is elastically reset, the limiting cap 89 abuts against the support 6 to limit the latch 8 from falling out of the pedal assembly.

[0056] Furthermore, a protective cover 84 for shielding the limiting cap 89 is provided at the outer end of the support 6, making the appearance of the pedal more concise.

[0057] Furthermore, the lifting column 71 is a hollow tubular structure, and the adjustment control group penetrates the tube wall of the lifting column 71 along the front-to-back direction, which is equivalent to setting a through adjustment hole group at the front and rear ends of the lifting column 71; the latch 8 is provided with two large-diameter sections 83 spaced apart from each other; when the lifting pedal is in the locked state, the two large-diameter sections 83 respectively cooperate with the gear holes 72 on the tube walls at the front and rear ends of the lifting column 71; when the lifting pedal is in the adjustment state, the two large-diameter sections 83 are respectively separated from the gear holes 72 on the tube walls at the front and rear ends of the lifting column 71; so that the front and rear ends of the pedal can be slidably adjusted or supported at the same time; ensuring the stability of the pedal.

[0058] Furthermore, the latch 8 is a cylindrical pin, part of the outer wall of the cylindrical pin is milled flat while part remains as it is, forming a flat small diameter section 8a and an annular large diameter section 83; the latch 8 can be directly formed by milling, saving the production cost of the latch 8.

[0059] like Figure 8-9 As shown, a seat is provided, including the lifting footrest, the seat also includes a seat back support assembly 10, the seat back support assembly includes a seat back and a seat, 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, first adjust the height of the pedal 7 to the right position, then the child can grab the seat, and step on the stepping part 3 to reach the pedal 7, and finally climb onto the seat to complete the sitting.

[0060] 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 lifting footrest, characterized in that: include; A pedal assembly comprises a support (6) and a pedal, wherein the pedal comprises a pedal (7) and a lifting column (71) connected to the lower end of the pedal (7), and the lifting column (71) is connected to the support (6) in a longitudinally slidable manner; The control structure comprises an adjustment hole group and a through hole (85) opposite to the adjustment hole group; the adjustment hole group comprises a plurality of gear holes (72) arranged at intervals in the longitudinal direction, and every two gear holes (72) are connected via a longitudinally extending groove (73); the through hole (85) is arranged on one of the support (6) and the lifting column (71), and the adjustment hole group is arranged on the other of the support (6) and the lifting column (71); A latch (8), the latch (8) being inserted between the through hole (85) and the adjustment hole group, the latch (8) comprising a small diameter section (8a) and a large diameter section (83); the width of the small diameter section (8a) matches the width of the groove (73), and the width of the large diameter section (83) matches the width of the gear hole (72); The upgrade pedal has a locking state and an adjustment state. When the lift pedal is in the locking state, the large diameter section (83) of the latch (8) is engaged in one of the gear holes (72) so that the pedal remains fixed. When the lift pedal is switched to the adjustment state, under the action of an external force, the large diameter section (83) of the latch (8) can escape from the gear hole (72) and the small diameter section (8a) is aligned with the groove (73) so that the pedal can be raised and lowered for adjustment. When the pedal is raised and lowered to a predetermined position, the large diameter section (83) of the latch (8) can be engaged with the corresponding gear hole (72) and the lift pedal is switched back to the locking state.

2. A lifting footrest according to claim 1, characterized in that: The through hole (85) is arranged on the support (6), and the adjustment hole group is arranged on the lifting column (71).

3. A lifting footrest according to claim 2, characterized in that: When the lifting pedal is switched from the adjustment state back to the locking state, the latch (8) can be elastically reset and the large diameter section (83) can be matched with the corresponding gear position hole (72).

4. A lifting footrest according to claim 3, characterized in that: One end of the latch (8) passes through the support (6), and the end of the latch (8) passing through the support (6) is connected to a button (81) that is easy to press, and a spring (82) is provided between the button and the support (6) to provide elastic restoring force for the latch (8).

5. A lifting footrest according to claim 4, characterized in that: The support (6) is provided with a receiving hole (87) for receiving the button (81), a guide rib (86) is provided on the hole wall of the receiving hole (87), a guide groove (88) is provided on the side of the button (81), and the guide rib (86) is slidably connected to the guide groove (88).

6. The lifting footrest according to claim 4 is characterized in that: The other end of the latch (8) also passes through the support (6), and the other end of the latch (8) is connected to a limiting cap (89); when the latch (8) is elastically reset, the limiting cap (89) abuts against the support (6) to limit the latch (8) from falling out of the pedal assembly.

7. A lifting footrest according to claim 6, characterized in that: A protective cover (84) for shielding the limiting cap (89) is provided at the outer end of the support (6).

8. The lifting footrest according to claim 1, characterized in that: The lifting column (71) is a hollow tubular structure, and the adjustment control group penetrates the tube wall of the lifting column (71) in the front-to-back direction; the latch (8) is provided with two large-diameter sections (83) spaced apart from each other; when the lifting pedal is in a locked state, the two large-diameter sections (83) respectively cooperate with the gear holes (72) on the tube walls at the front and rear ends of the lifting column (71); when the lifting pedal is in an adjustment state, the two large-diameter sections (83) respectively separate from the gear holes (72) on the tube walls at the front and rear ends of the lifting column (71).

9. The lifting footrest according to claim 1, characterized in that: The latch pin (8) is a cylindrical pin, part of the outer wall of which is milled flat and part of which remains intact, forming a flat small diameter section (8a) and an annular large diameter section (83).

10. A seat, characterized in that: The invention comprises the lifting footrest as claimed in claim 1.

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