Safe footrest connecting piece

Abstract

The utility model provides a safe footrest connecting piece, which solves the problems of aging of a footrest resetting structure and the like, and comprises an L-shaped connecting part, an adapting part which is bent relative to the connecting part is connected to the end of the connecting part, a rotating part is arranged at one end, far away from the connecting part, of the adapting part, and a plurality of strip-shaped mounting holes are formed in the connecting part. The strip-shaped mounting hole is provided with a fastening connecting piece, an elastic reset piece is arranged between the rotating part and the switching part, and an adjusting assembly connected with the elastic reset piece is arranged on the switching part. The reset device has the advantages of stable structure, good reset effect and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofa accessories, and particularly relates to a safety footrest connector. Background Art

[0002] The footrest is a crucial component in sofa design. Located at the base of the sofa, it supports the entire structure. Many sofas feature a footrest to enhance stability and longevity. The footrest also adds a sense of structure and enhances the overall aesthetic. However, during assembly, existing sofa footrests often utilize elastic connectors to automatically retract. However, after extended use, these connectors age, preventing them from fully folding. Furthermore, existing sofa footrests move and rise too quickly, making them uncomfortable to use.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a sofa footrest device [202110441298.X], which includes an inner mounting frame, an outer mounting frame, a driving cylinder installed between the inner mounting frame and the outer mounting frame, a linkage member driven by the driving cylinder to move along the length direction of the driving cylinder, a pedal assembly rotatably connected to the linkage member, a first guide assembly and a second guide assembly, the first guide assembly is used to force the pedal assembly to rotate relative to the linkage member to complete the lifting during the continuous movement toward the outer mounting frame, the second guide assembly includes a slide rail arranged along the movement direction of the linkage member and a support tube slidably sleeved on the outside of the slide rail, the slide rail is fixedly connected to the inner mounting frame and / or the outer mounting frame, and the support tube is fixedly installed on the linkage member.

[0004] The above solution solves the problem of the footrest being lifted too quickly to a certain extent, but the solution still has many shortcomings, such as aging and failure of the reset structure. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a safety footrest connector with a reasonable design and adjustable reset structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a safety footrest connector, including an L-shaped connecting part, a connecting part bent relative to the connecting part is connected to the end of the connecting part, a rotating part is provided at the end of the connecting part away from the connecting part, a plurality of strip-shaped mounting holes are opened on the connecting part, the strip-shaped mounting holes are equipped with fastening connecting parts, an elastic reset part is provided between the rotating part and the connecting part, and an adjustment component connected to the elastic reset part is provided on the connecting part.

[0007] In the above-mentioned safety footrest connector, the fastening connector includes a fastening bolt and a fastening nut that are threadedly connected to each other, a fastening sleeve that is slidably installed in the strip mounting hole is provided between the fastening bolt and the fastening nut, and an expansion extrusion assembly is provided between the fastening sleeve and the strip mounting hole.

[0008] In the above-mentioned safety footrest connector, the expansion and extrusion assembly includes an extrusion sheet arranged at the end of the fastening sleeve, the fastening sleeve is provided with deformation grooves, and the outside of the fastening sleeve is provided with anti-slip protrusions distributed between the deformation grooves.

[0009] In the above-mentioned safety footrest connector, a rotating bearing is provided between the rotating portion and the adapter portion, and the elastic reset member is a tension spring and is connected to the rotating portion and the adjustment assembly.

[0010] In the above-mentioned safety footrest connector, the adjustment assembly includes an adjustment frame hinged to the adapter part, a limit strip hinged in the middle of the adjustment frame, a limit block rotatably connected at the end of the limit strip, a limit groove for the limit block to slide is provided on the adapter part, and a limit hole and a limit pin are provided between the limit block and the adapter part.

[0011] In the above-mentioned safety footrest connector, the rotating portion is cylindrical, and a support plate extending in a tangential direction is provided on the outer side of the rotating portion, and threaded mounting holes are respectively opened on the support plate.

[0012] In the above-mentioned safety footrest connector, a snap-fit groove is provided on the edge of the connecting portion.

[0013] In the above-mentioned safety footrest connector, the connecting portion and the transition portion are integrally formed of stainless steel.

[0014] In the above-mentioned safety footrest connector, a reinforcing rib is provided at the bending portion between the connecting portion and the transition portion.

[0015] In the above-mentioned safety footrest connector, the outer sides of the connecting portion and the transition portion are coated with a corrosion-resistant layer.

[0016] Compared with the existing technology, the advantages of the present invention are: the rotating part is flipped and reset relative to the adapter part by the elastic reset part, and the elastic reset part is adjusted by the adjustment component to ensure that the footrest can still be accurately reset after long-term use; the fastening connection is equipped with an expansion extrusion component, which further improves the installation stability of the threaded part when the connection part is assembled and fixed; the rotating part supports the footrest by a combination of a cylinder and a plate, which has good structural strength and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2It is a structural schematic diagram of the utility model from another perspective;

[0019] Figure 3 It is a structural schematic diagram of the utility model from another perspective;

[0020] Figure 4 It is a partial cross-sectional view of the utility model;

[0021] In the figure, connecting part 1, strip mounting hole 11, clamping groove 12, reinforcing rib 13, adapter part 2, rotating part 3, support plate 31, threaded mounting hole 32, fastening connector 4, fastening bolt 41, fastening nut 42, fastening sleeve 43, fastening sleeve 43, extrusion sheet 44, deformation groove 45, anti-slip protrusion 46, elastic reset part 5, adjustment assembly 6, adjustment frame 61, limit strip 62, limit block 63, limit groove 64, limit hole 65, limit pin 66. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4 As shown, a safety footrest connector includes an L-shaped connecting portion 1, which is fixedly mounted to the base of a sofa; a transition portion 2 is connected to the end of the connecting portion 1 and is bent relative to the connecting portion, and the transition portion 2 extends to the bottom of the sofa. A rotating portion 3 is provided at the end of the transition portion 2 away from the connecting portion 1. The connecting portion 1 is provided with a plurality of strip-shaped mounting holes 11, and the strip-shaped mounting holes 11 are equipped with fastening connectors 4, which lock the connecting portion 1 to the sofa base. An elastic return member 5 is provided between the rotating portion 3 and the transition portion 2, and an adjustment assembly 6 connected to the elastic return member 5 is provided on the transition portion 2. When the elastic return member 5 becomes unstable and fails after long-term use, the elastic return member 5 is used to adjust its orientation.

[0024] Specifically, the fastening connector 4 includes a fastening bolt 41 and a fastening nut 42 that are threadedly connected to each other. A fastening sleeve 43 is disposed between the fastening bolt 41 and the fastening nut 42, and is slidably mounted within the strip-shaped mounting hole 11. An expansion and extrusion assembly is disposed between the fastening sleeve 43 and the strip-shaped mounting hole 11. The fastening sleeve 43 is relatively independent, and when the fastening bolt 41 and the fastening nut 42 apply a tightening torque, the expansion and extrusion assembly axially limits the fastening sleeve 43 and the strip-shaped mounting hole 11.

[0025] Specifically, unlike conventional expansion structures, the expansion and extrusion assembly in this embodiment includes an extrusion sheet 44 disposed at the end of a fastening sleeve 43. The fastening sleeve 43 is provided with deformation grooves 45, and the outer side of the fastening sleeve 43 is provided with anti-slip bumps 46 distributed between the deformation grooves 45. When the fastening sleeve 43 is subjected to vertical pressure, the entire sleeve deforms along the deformation grooves 45, and the anti-slip bumps 46 protrude and press against the inner side of the strip-shaped mounting hole 11.

[0026] Furthermore, in order to ensure the movement flexibility of the rotating part 3, a rotating bearing is provided between the rotating part 3 and the adapter part 2, and the elastic reset member 5 is a tension spring and is connected to the rotating part 3 and the adjustment assembly 6.

[0027] Furthermore, the adjustment assembly 6 includes an adjustment frame 61 hingedly connected to the adapter 2. A limit bar 62 is hingedly connected to the middle of the adjustment frame 61. The end of the limit bar 62 is rotatably connected to a limit block 63. The adapter 2 is provided with a limit slot 64 for the limit block 63 to slide. A limit hole 65 and a limit pin 66 are provided between the limit block 63 and the adapter 2. The limit block 63 slides within the limit slot 64 and is fixed by the limit hole 65 and limit pin 66. At this time, the angle between the adjustment frame 61 and the limit bar 62 is also fixed. The elastic return member 5 is connected to the end of the adjustment frame 61.

[0028] In addition, the rotating part 3 is connected and fixed to the footrest body. Its main body is cylindrical. A support plate 31 extending tangentially is provided on the outside of the rotating part 3. The support plate 31 is respectively provided with threaded mounting holes 32. The threaded mounting holes 32 are used to achieve the fit and clamping of the support plate 31 and the footrest through screws.

[0029] At the same time, since the connecting part 1 is installed at the bottom of the sofa, the clamping groove 12 opened at the edge thereof realizes the clamping of the external limiting rod body, providing additional support for the entire connecting part.

[0030] It can be seen that the connecting part 1 and the transition part 2 are integrally formed of stainless steel and coated with a corrosion-resistant layer on the outside to extend the overall service life. The connecting part 1 and the transition part 2 are stamped and formed, and the corners thereof are rounded.

[0031] Obviously, a reinforcing rib 13 is provided at the bending portion of the connecting portion 1 and the transition portion 2 to improve the local structural strength thereof, while the main planes of the connecting portion 1 and the transition portion 2 remain parallel.

[0032] To sum up, the principle of this embodiment is that the connecting part 1 and the adapter part 2 are bent relative to each other, wherein the rotating part 3 at the end of the adapter part 2 is pulled by the elastic reset part 5 to achieve automatic reset, and the adjustment component 6 adjusts the azimuth angle of the elastic reset part 5 to ensure that the elastic reset part 5 always has good reset elasticity.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0034] Although this document frequently uses terms such as connecting portion 1, strip-shaped mounting hole 11, snap-fitting groove 12, reinforcing rib 13, adapter 2, rotating portion 3, support plate 31, threaded mounting hole 32, fastening connector 4, fastening bolt 41, fastening nut 42, fastening sleeve 43, fastening sleeve 43, extrusion sheet 44, deformation groove 45, anti-slip bump 46, elastic reset member 5, adjustment assembly 6, adjustment frame 61, limiting strip 62, limiting block 63, limiting groove 64, limiting hole 65, and limiting pin 66, the possibility of using other terms is not excluded. The use of these terms is merely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A safety footrest connector, comprising an L-shaped connecting portion (1), wherein the end of the connecting portion (1) is connected to a transition portion (2) bent relative to the connecting portion, and the end of the transition portion (2) away from the connecting portion (1) is provided with a rotating portion (3), characterized in that: The connecting portion (1) is provided with a plurality of strip-shaped mounting holes (11), each of the strip-shaped mounting holes (11) is provided with a fastening connection member (4), an elastic reset member (5) is provided between the rotating portion (3) and the adapter portion (2), and an adjustment component (6) connected to the elastic reset member (5) is provided on the adapter portion (2).

2. A safety footrest connector according to claim 1, characterized in that: The fastening connector (4) includes a fastening bolt (41) and a fastening nut (42) that are threadedly connected to each other, a fastening sleeve (43) that is slidably mounted in the strip-shaped mounting hole (11) is provided between the fastening bolt (41) and the fastening nut (42), and an expansion extrusion component is provided between the fastening sleeve (43) and the strip-shaped mounting hole (11).

3. A safety footrest connector according to claim 2, characterized in that: The expansion extrusion assembly includes an extrusion sheet (44) arranged at the end of a fastening sleeve (43), a deformation groove (45) is opened on the fastening sleeve (43), and anti-slip protrusions (46) distributed between the deformation grooves (45) are arranged on the outside of the fastening sleeve (43).

4. A safety footrest connector according to claim 1, characterized in that: A rotating bearing is provided between the rotating part (3) and the adapter part (2), and the elastic reset member (5) is a tension spring and is connected to the rotating part (3) and the adjustment assembly (6).

5. A safety footrest connector according to claim 4, characterized in that: The adjustment assembly (6) comprises an adjustment frame (61) hinged to the adapter (2); a limit bar (62) is hinged to the middle of the adjustment frame (61); the end of the limit bar (62) is rotatably connected to a limit block (63); a limit groove (64) for the limit block (63) to slide is provided on the adapter (2); a limit hole (65) and a limit pin (66) are provided between the limit block (63) and the adapter (2).

6. A safety footrest connector according to claim 4, characterized in that: The rotating part (3) is cylindrical, and a support plate (31) extending in a tangential direction is provided on the outer side of the rotating part (3), and threaded mounting holes (32) are respectively opened on the support plate (31).

7. The safety footrest connector according to claim 1, characterized in that: A snap-fit groove (12) is provided at the edge of the connecting portion (1).

8. The safety footrest connector according to claim 1, characterized in that: The connecting portion (1) and the transition portion (2) are integrally formed of stainless steel.

9. The safety footrest connector according to claim 1, characterized in that: A reinforcing rib (13) is provided at the bending portion between the connecting portion (1) and the transition portion (2).

10. The safety footrest connector according to claim 1, characterized in that: The outer sides of the connecting portion (1) and the transition portion (2) are coated with a corrosion-resistant layer.

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