Foot rest device

Abstract

A footrest device comprises a supporting assembly, a bearing piece and a locking assembly, the supporting assembly is configured to support a main body, the bearing piece is configured to bear the legs and feet of the human body, the supporting assembly comprises a rotating shaft horizontally arranged left and right, and the bearing piece is rotationally arranged on the rotating shaft; the locking assembly is arranged between the supporting assembly and the bearing piece and acts on the supporting assembly and the bearing piece. The locking assembly comprises a locking pin, the locking pin is inserted into the bearing piece and is arranged relative to the bearing piece in a sliding mode, and the locking assembly is configured in the mode that when the locking pin slides to be connected with the supporting assembly in an inserted mode, the bearing piece and the supporting assembly are locked; during folding, the bearing piece is folded below the supporting assembly, so that the length of a pull rod in the supporting assembly can be shortened due to the overturning function, and a hole for accommodating the foot rest device does not need to be additionally formed in a chair seat; compared with ratchet wheel locking, locking is firmer and more stable through a locking pin in the locking assembly, loss is not prone to occurring, and the problems that durability is poor, the service life is short and supporting force is insufficient are solved.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a footrest device. Background Art

[0002] Chairs are one of the most common furniture in our daily life and work. Users spend a lot of time sitting on them and also lie on them when they are tired. In order to increase the comfort when lying down, footrests are provided on the seats to support the legs and feet of the human body stretched forward. There are many types of existing footrests, but all of them have corresponding problems.

[0003] For example, a non-flip footrest requires a longer pull rod to put the footrest in a suitable position to support the legs and feet of the human body. Another example is a footrest that folds upward requires the seat to provide a large accommodating space. In the existing downward-folding footrest, a ratchet structure is generally used to prevent it from falling downward and to provide supporting force after the footrest is extended. However, the durability is poor, it is easy to fail after long-term use, and the bearing capacity is also poor. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the utility model provides a footrest device, including a supporting assembly as a main body support, a supporting member for supporting the legs and feet of a human body, and a locking assembly for controlling the locking and unlocking of the supporting member and the supporting assembly; the supporting assembly includes a rotating shaft, the supporting member is rotatably arranged on the rotating shaft, and the locking assembly includes a locking pin, which is slidably arranged on the supporting member, and when the locking pin is inserted into the supporting assembly, the supporting assembly and the supporting member are locked; compared with ratchet locking, locking using the locking pin in the locking assembly is more secure and stable, and is not easy to wear, thereby solving the problems of poor durability, low life and insufficient supporting force.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A footrest device includes a support assembly, a supporting member and a locking assembly, wherein the support assembly is configured as a main body support, the supporting member is configured to support the legs and feet of a human body, the support assembly includes left and right horizontally arranged rotating shafts, and the supporting member is rotatably set on the rotating shafts; the locking assembly is arranged between the support assembly and the supporting member, and acts on the support assembly and the supporting member respectively; the locking assembly includes a locking pin, the locking pin is inserted in the supporting member and is arranged to slide relative to the supporting member, and the locking assembly is configured so that when the locking pin slides to be plugged into the support assembly, the supporting member and the support assembly are locked.

[0007] In this solution, the locking and unlocking of the supporting member and the supporting assembly are controlled by a locking assembly, which can not only allow the supporting member and the supporting assembly to rotate to switch states, but also keep the supporting member stable in a folded or unfolded state; in the folded state, the supporting member is folded under the supporting assembly, so that the length of the pull-out rod in the supporting assembly can be shortened due to the flipping function, and there is no need to add an additional hole to the seat to accommodate the footrest device; compared with ratchet locking, locking with the locking pin in the locking assembly is more secure and stable, and not easy to wear, which solves the problems of poor durability, low life and insufficient supporting force.

[0008] Preferably, the support assembly includes a locking seat, which is provided with a folded locking hole and an extended locking hole, and the footrest device has a folded state and a locked state; in the folded state, the locking pin is inserted in the folded locking hole, and the supporting member is folded under the support assembly; in the extended state, the locking pin is inserted in the extended locking hole, and the supporting member extends in front of the support assembly. The locking pin is inserted in different locking holes, so that the supporting member can remain stable and provide support capabilities when it is in different states after rotation, and the support and locking effects are better than the ratchet mechanism.

[0009] Preferably, the locking assembly further comprises a button, which is slidably disposed in the support member and protrudes from the support member, and the button is configured to be pressed to drive the locking pin to leave the folded locking hole or the unfolded locking hole, and unlock the support assembly and the support member so that the footrest device can be switched between the folded state and the unfolded state. Switching the locked and unlocked states by a button is not only more convenient, but also more intuitive for the user. Compared with the operation mode without button rotation, the user can use it directly without learning.

[0010] Preferably, a wedge is provided at one end of the locking pin, and a receiving groove is formed under the button, in which the wedge is located; a projection with an inclined surface is provided in the receiving groove, and the wedge fits the inclined surface, and can drive the locking pin to slide when the button slides. The sliding direction of the locking pin is along the axial direction of the rotating shaft, and the sliding direction of the button is along the radial direction of the rotating shaft. Through the cooperation of the wedge and the inclined surface, when the button slides radially in the rotating shaft, the locking pin is driven to slide axially in the rotating shaft, thereby achieving unlocking or locking; the structure is simple and compact, and reversing is achieved, which is convenient for users to operate.

[0011] Preferably, the locking assembly further comprises a first return spring and a second return spring, wherein the first return spring is arranged between the button and the supporting member and is used to return the button; the second return spring acts on the locking pin and provides elastic force for the locking pin to move toward the supporting member. After pressing the button to unlock, the user does not need to operate the button again, but only needs to rotate the supporting member to switch the state of the footrest device. When the locking pin reaches any locking hole, the locking pin directly enters the locking hole under the action of the second return spring, and the button also rebounds and returns to its original position under the action of the first return spring.

[0012] Preferably, a limit strip is convexly provided on the rotating shaft, and an avoidance groove is provided in the supporting member, and the avoidance groove is used to avoid the limit strip when the supporting member rotates. When the groove wall of the avoidance groove fits with the limit strip, it can play a limiting role, so that the supporting member can be switched between the unfolded state and the folded state more accurately without excessive rotation.

[0013] Preferably, the support assembly includes a drawer rod, which is configured to be inserted into the seat; a handle is provided at the front end of the drawer rod, the handle is fixedly mounted on the drawer rod, and the rotating shaft is inserted in the handle and the drawer rod. The handle allows the user to conveniently draw the footrest device.

[0014] Preferably, the support member includes a support part and a rotating part, the rotating shaft is inserted in the rotating part, the support part is a plate, and anti-skid patterns are provided on the support part. The support part is a plastic plate, which does not need to be wrapped with sponge, has low cost and is easy to clean; the anti-skid patterns can make the support member anti-skid and make the support member more beautiful.

[0015] The design starting point, concept and beneficial effects of the utility model using the above technical solution are:

[0016] In this solution, the locking and unlocking of the supporting member and the supporting assembly are controlled by a locking assembly, which can not only allow the supporting member and the supporting assembly to rotate to switch states, but also keep the supporting member stable in a folded or unfolded state; in the folded state, the supporting member is folded under the supporting assembly, so that the length of the pull-out rod in the supporting assembly can be shortened due to the flipping function, and there is no need to add an additional hole to the seat to accommodate the footrest device; compared with ratchet locking, locking with the locking pin in the locking assembly is more secure and stable, and not easy to wear, which solves the problems of poor durability, low life and insufficient supporting force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the footrest device in the folded state in the embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the footrest device in the unfolded state in the embodiment of the utility model;

[0019] Figure 3 A top view of the footrest device in the folded state in the embodiment of the utility model;

[0020] Figure 4 is a cross-sectional view of the footrest device in the folded state in the embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the support assembly in the embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure when the first shell and the second shell are combined in the embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of a three-dimensional structure in which a locking assembly is disposed between a supporting member and a supporting assembly in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of the wedge block arranged in the first slide groove in the embodiment of the utility model;

[0025] Fig. 9 It is a cross-sectional view of the wedge block and the inner inclined surface of the button in the embodiment of the utility model.

[0026] The figures are marked as follows: supporting assembly 1; supporting member 2; supporting portion 21; rotating portion 22; first shell 221; second shell 222; rotating shaft 3; locking pin 4; pull-out rod 5; handle 6; locking seat 7; limiting strip 8; avoidance groove 9; folding locking hole 10; unfolding locking hole 11; button 12; first return spring 13; second return spring 14; first slide groove 15; second slide groove 16; wedge block 17; accommodating groove 18; protrusion 19; inclined surface 20. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] In the description of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0030] The specific implementation of the utility model is as follows:

[0031] like Figure 1 , 2 As shown in Figures 7 and 8, the utility model provides a footrest device, including a support assembly 1, a supporting member 2 and a locking assembly. The support assembly 1 is configured to support the main body, and the supporting member 2 is configured to support the legs and feet of the human body. The support assembly 1 includes a rotating shaft 3 arranged horizontally on the left and right sides, and the supporting member 2 is rotatably set on the rotating shaft 3; the locking assembly is arranged between the support assembly 1 and the supporting member 2, and acts on the support assembly 1 and the supporting member 2 respectively; the locking assembly includes a locking pin 4, the locking pin 4 is inserted in the supporting member 2 and is slidably arranged relative to the supporting member 2, and the locking assembly is configured so that when the locking pin 4 slides to be plugged with the support assembly 1, the supporting member 2 and the support assembly 1 are locked.

[0032] In this solution, the locking and unlocking of the supporting member 2 and the supporting member 1 are controlled by the locking assembly, which can not only allow the supporting member 2 and the supporting member 1 to rotate to switch states, but also keep the supporting member 2 stable in the folded or unfolded state; in the folded state, the supporting member 2 is folded under the supporting member 1, so that the length of the pull-out rod 5 in the supporting member 1 can be shortened due to the flipping function, and there is no need to add an additional hole to the seat to accommodate the footrest device; compared with ratchet locking, the locking pin 4 in the locking assembly is more secure and stable, and is not easy to wear, which solves the problems of poor durability, low life and insufficient supporting force.

[0033] Specifically, if Figure 3-5 As shown, the support assembly 1 also includes a pull-out rod 5, a handle 6 and a locking seat 7. There are two pull-out rods 5, which are arranged at intervals on the left and right, and the pull-out rods 5 are configured to be inserted in the seat; a handle 6 is provided at the front end of each pull-out rod 5, and the handle 6 is located on the outside of the pull-out rod 5. A locking seat 7 is provided on the inside of the pull-out rod 5, and the locking seat 7 is fixedly connected to the pull-out rod 5 together with the handle 6; the rotating shaft 3 is also provided at the front end of the pull-out rod 5, and the rotating shaft 3 is inserted in the locking seat 7, the handle 6 and the pull-out rod 5; the handle 6 provided on the outside of the pull-out rod 5 protrudes outward from the pull-out rod 5, and when the user uses the footrest assembly, the handle 6 can be pulled out from under the seat, which is more convenient; the support assembly 1 including the pull-out rod 5 and the rotating shaft 3 is U-shaped.

[0034] like Figure 4 , 6As shown, the supporting member 2 includes a supporting portion 21 and a rotating portion 22, the supporting portion 21 is used to support the legs and feet of the human body, and the rotating portion 22 is used to insert the rotating shaft 3; the rotating portion 22 includes a first shell 221 and a second shell 222, one end of the supporting portion 21 is extended with the first shell 221, and the first shell 221 is fixedly connected with the second shell 222. Specifically, the first shell 221 and the second shell 222 are combined and fixedly connected by screws, and the rotating shaft 3 is inserted in the first shell 221 and the second shell 222. A limiting strip 8 is convexly provided on the rotating shaft 3, and the first shell 221 and the second shell 222 are both grooved, so that the rotating portion 22 is formed with an avoidance groove 9, and the avoidance groove 9 is used to avoid the limiting strip 8 when the supporting member 2 rotates; the groove wall of the avoidance groove 9 can play a limiting role when it is in contact with the limiting strip 8, so that the supporting member 2 can be switched between the expanded state and the folded state more accurately without excessive rotation.

[0035] The supporting member 2 is a plastic plate, and the supporting portion 21 is provided with anti-skid patterns. The supporting member 2 does not need to be wrapped with sponge, which is low in cost and easy to clean. The anti-skid patterns can make the supporting member 2 anti-skid and make the supporting member 2 more beautiful.

[0036] like Figure 4 , 5 As shown, a folding locking hole 10 and an unfolding locking hole 11 are provided on the locking seat 7, and the footrest device has a folded state and a locked state; in the folded state, the locking pin 4 is inserted in the folded locking hole 10, and the supporting member 2 is folded under the supporting assembly 1; in the unfolded state, the locking pin 4 is inserted in the unfolded locking hole 11, and the supporting member 2 extends in front of the supporting assembly 1; the locking pin 4 is inserted in different locking holes, so that the supporting member 2 can remain stable and provide support capabilities when it is in different states after rotation. Compared with the ratchet mechanism, the supporting and locking effects are better.

[0037] Furthermore, if Figure 4 , 7As shown in , 8, the locking assembly also includes a button 12, a first return spring 13 and a second return spring 14. The button 12 is slidably arranged in the supporting member 2 and protrudes from the supporting member 2. Specifically, the button 12 is arranged on the second shell body 222; the button 12 is configured to press the button 12 to drive the locking pin 4 to leave the folded locking hole 10 or the unfolded locking hole 11, unlock the support assembly 1 and the supporting member 2, so that the footrest device can switch between the folded state and the unfolded state; switching the locked and unlocked states by the button 12 is not only more convenient, but also more intuitive for the user. Compared with the operation mode without the rotation of the button 12, the user can use it directly without learning; more specifically, there are two locking pins 4, and the two locking pins 4 are symmetrically arranged on the left and right. A first slide groove 15 is provided in the first shell body 221, and a second slide groove 16 is provided in the second shell body 222. One end of the locking pin 4 is located at The first slide groove 15 is provided with a wedge block 17 at the end thereof, and the second return spring 14 is provided between the two wedge blocks 17; the button 12 is provided in the second slide groove 16 and the second slide groove 16 is communicated with the first slide groove 15, and the first return spring 13 is provided between the first housing 221 and the button 12; a recess 18 is formed below the button 12, and the wedge block 17 is located in the receiving groove 18, and a protrusion 19 with an inclined surface 20 is provided in the receiving groove 18, the wedge block 17 is always in contact with the inclined surface 20, and can drive the locking pin 4 to slide when the button 12 slides; the sliding direction of the locking pin 4 is along the axial direction of the rotating shaft 3, and the sliding direction of the button 12 is along the radial direction of the rotating shaft 3. Through the cooperation of the wedge block 17 and the inclined surface 20, when the button 12 slides radially on the rotating shaft 3, the locking pin 4 is driven to slide axially on the rotating shaft 3, thereby realizing unlocking or locking; the structure is simple and compact, and reversing is realized, which is convenient for users to operate.

[0038] The first return spring 13 is used to reset the button 12; the second return spring 14 provides elastic force for the locking pin 4 toward the supporting assembly 1. After pressing the button 12 to unlock, the user does not need to operate the button 12 again, but only needs to rotate the supporting member 2 to switch the state of the footrest device. When the locking pin 4 comes to any locking hole, under the action of the second return spring 14, the locking pin 4 directly enters the locking hole, and under the action of the first return spring 13, the button 12 will also rebound and reset.

[0039] In the folded state, the locking pin 4 is inserted in the folded locking hole 10, and the supporting member 2 is folded under the supporting assembly 1; after pressing the button 12, the wedge block 17 and the inclined surface 20 act to make the locking pin 4 disengage from the folded locking hole 10, and the supporting member 2 is rotated downward and unfolded forward until the locking pin 4 is rotated to the unfolded locking hole 11. Under the action of the second return spring 14, the locking pin 4 enters the unfolded locking hole 11, and under the action of the first return spring 13, the wedge block 17 and the inclined surface 20, the button 12 pops out and resets. At this time, the footrest device switches to the unfolded state, and the supporting member 2 is located in front of the supporting assembly 1.

Claims

1. A footrest device, characterized in that: The footrest comprises a support assembly, a supporting member and a locking assembly, wherein the support assembly is configured as a main body support, the supporting member is configured to support the legs and feet of a human body, the support assembly comprises a rotating shaft arranged horizontally on the left and right sides, and the supporting member is rotatably arranged on the rotating shaft; the locking assembly is arranged between the support assembly and the supporting member, and acts on the support assembly and the supporting member respectively; the locking assembly comprises a locking pin, which is inserted into the supporting member and slides relative to the supporting member, and the locking assembly is configured so that when the locking pin slides to be plugged into the support assembly, the supporting member and the support assembly are locked; the support assembly comprises a locking seat, and a folding locking hole and an unfolding locking hole are provided on the locking seat, and the footrest device has a folded state and a locked state; In the folded state, the locking pin is inserted into the folded locking hole, and the supporting member is folded under the supporting assembly; In the unfolded state, the locking pin is inserted into the unfolded locking hole, and the supporting member extends in front of the supporting assembly; The locking assembly also includes a button, which is slidably arranged in the supporting member and protrudes from the supporting member. The button is configured to be pressed to drive the locking pin to leave the folded locking hole or the expanded locking hole, and unlocking the support assembly and the supporting member enables the footrest device to switch between the folded state and the expanded state; a wedge is provided at one end of the locking pin, and a recess is formed below the button to form a receiving groove, and the wedge is located in the receiving groove; a protrusion with an inclined surface is provided in the receiving groove, the wedge is in contact with the inclined surface, and can drive the locking pin to slide when the button slides.

2. The footrest device according to claim 1, characterized in that: The locking assembly also includes a first return spring and a second return spring. The first return spring is arranged between the button and the supporting member and is used to reset the button; the second return spring acts on the locking pin and provides the locking pin with an elastic force toward the supporting assembly.

3. The footrest device according to claim 1, characterized in that: A limiting strip is convexly arranged on the rotating shaft, and an avoidance groove is opened in the supporting member, and the avoidance groove is used for avoiding the limiting strip when the supporting member rotates.

4. The footrest device according to claim 1, characterized in that: The support assembly comprises a drawer rod, which is configured to be inserted into the seat; a handle is provided at the front end of the drawer rod, the handle is fixedly mounted on the drawer rod, and a rotating shaft is inserted in the handle and the drawer rod.

5. The footrest device according to claim 1, characterized in that: The supporting member comprises a supporting part and a rotating part, the rotating shaft is inserted in the rotating part, the supporting part is a plate, and anti-slip patterns are arranged on the supporting part.

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