Foldable leg support and seat with foldable leg support
By designing a foldable leg rest structure and utilizing the combination of a gear shifter and a sliding pin, the problem of inconvenient seat leg rest adjustment was solved, thus achieving both comfort and convenience for the seat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG WEITAI DECORATION FURNITURE CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-28
AI Technical Summary
Existing seats have inconvenient leg rest adjustments and fixed lengths, which cannot meet the comfort needs of different users.
A foldable leg support structure is designed. The angle of the first support plate is adjusted by a gear rotator, and the first and second support plates are folded and unfolded by the cooperation of the hinge shaft and the sliding pin, thereby extending the length of the leg support.
It features flexible leg rest adjustment to increase seat comfort, and the leg rest can be folded and stored away when not in use to reduce space occupation. It is also easy to operate.
Smart Images
Figure CN224165991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seating technology, and in particular to a foldable leg rest and a seat with a foldable leg rest. Background Technology
[0002] In current chairs, the leg rest design allows people to place their legs on it for rest. However, most chairs currently have leg rests that are inconvenient to adjust, or that are adjustable but have a fixed length, which is less than or equal to the distance between the seat and the ground. In such cases, placing the lower legs on the leg rest does not provide sufficient rest.
[0003] Therefore, in order to address the above problems, this utility model urgently needs to provide a seat with a foldable leg rest and a leg rest that can be folded. Utility Model Content
[0004] The purpose of this utility model is to provide a foldable leg rest and a seat with a foldable leg rest, thereby solving the problems of leg rest adjustment difficulties in the prior art through the structural design of the foldable leg rest.
[0005] A foldable leg rest includes a mounting base, on one side of which a first support plate is rotatably mounted via a gear rotator, and on the other side of the first support plate a second support plate is hinged via a hinge shaft.
[0006] The first tray has a locking socket on its surface. The second tray can rotate upward along the hinge axis until it is completely in contact with the surface of the first tray. After it is in contact, the side of the second tray is opposite to the side of the locking socket, and the locking socket has a locking hole through it.
[0007] The second tray has an installation groove on the side that does not fit with the first tray. The side of the installation groove near the locking hole has a pin through hole. The side wall of the installation groove has an installation rail parallel to the axis of the locking hole. It also includes a sliding pin installed in the installation groove and slidably engaged with the installation rail.
[0008] The sliding pin has a pin head at one end near the locking hole that can pass through the pin through hole and the locking hole, and a spring is connected to the other end between it and the side wall of the mounting groove.
[0009] Furthermore, the outer surface of the sliding pin is provided with a pin baffle, which covers the mounting groove, and the four edges of the pin baffle overlap the surface of the second support plate; the pin baffle is provided with a spring mounting through hole, the width of which is greater than or equal to the outer diameter of the spring.
[0010] Furthermore, the outer surface of the pin baffle is provided with a push handle for pushing the sliding pin along the mounting rail.
[0011] Furthermore, the top of the pin head is provided with a pin guide slope, which is located between the side of the pin head away from the pin baffle and the top surface of the pin head, for guiding the pin head into the locking socket.
[0012] Furthermore, the top of the locking socket is provided with a locking guide ramp, which is located between the side of the locking socket near the second tray and the top surface of the locking socket, for guiding the second tray to fit against the surface of the first tray.
[0013] Furthermore, two mounting rails are symmetrically installed on both sides of the mounting groove perpendicular to the hinge axis, and multiple mounting notches are provided on the mounting rails; mounting grooves matching the mounting rails are provided on both sides of the sliding pin, and multiple fixing protrusions corresponding to each mounting notch are provided on the side of the mounting groove; wherein, the width of the sliding pin is the same as that of the mounting groove, the thickness of the sliding pin is less than or equal to the depth of the mounting groove, the distance between the fixing protrusion and the bottom surface of the mounting groove is greater than or equal to the thickness of the mounting rail, and the length of the fixing protrusion is less than or equal to the length of the mounting notch.
[0014] Furthermore, the mounting base includes two spaced-apart mounting brackets, which are rotatably connected to the side of the first tray via gear shifters, and the two gear shifters are symmetrically arranged on the side of the first tray.
[0015] Furthermore, the rotation angle settings of the gear rotator include one or more of the following: 75°, 90°, 105°, 120°, 135°, 150°, 165°, and 180°.
[0016] Furthermore, the gear shifter is a watch hinge.
[0017] This utility model also provides a seat with a foldable leg rest, including a seat body, a seat back and seat legs, and a foldable leg rest installed on the lower surface of the seat body.
[0018] The foldable leg rest and foldable seat provided by this utility model have the following advantages compared with the prior art:
[0019] The foldable leg rest and foldable seat provided by this utility model can adjust the angle of the leg rest body, i.e., the first support plate, through a gear rotator. Then, the first support plate and the second support plate are hinged through a hinge shaft. A spring pushes a sliding pin that is slidably connected to the second support plate, so that the pin head is inserted into the locking socket fixed on the first support plate, thereby folding the first support plate and the second support plate. When the leg rest is opened, the length of the leg rest can be extended, increasing the comfort of the seat. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram (perspective view) of the foldable leg rest seat described in this utility model;
[0022] Figure 2 This is a schematic diagram (side view) of the foldable leg rest seat described in this utility model;
[0023] Figure 3 This is a schematic diagram (sectional view) of the foldable leg rest seat described in this utility model;
[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0025] Figure 5 This is a schematic diagram (perspective view) of the first tray in this utility model;
[0026] Figure 6 for Figure 5 Enlarged view of point B in the middle;
[0027] Figure 7 A schematic diagram (perspective view) of the sliding pin described in this utility model;
[0028] Figure 8 This is a schematic diagram (perspective view) of the second tray in this utility model.
[0029] Explanation of reference numerals in the attached figures:
[0030] 1. Seat backrest; 2. Seat body; 3. Seat legs; 4. First support plate; 5. Second support plate; 6. Gear shifter; 7. Hinge shaft; 8. Sliding pin; 801. Pin head; 802. Push handle; 803. Spring mounting through hole; 804. Mounting groove; 805. Fixing protrusion; 806. Pin guide slope; 9. Locking socket; 901. Locking hole; 902. Locking guide slope; 10. Mounting slide; 1001. Pin through hole; 1002. Mounting slide rail; 1003. Mounting notch; 11. Spring; 12. Mounting bracket; 13. Pin baffle. Detailed Implementation
[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the present invention provides a foldable leg rest, including a mounting base. A first support plate 4 is rotatably mounted on one side of the mounting base via a gear rotator 6, and a second support plate 5 is hinged to the other side of the first support plate 4 via a hinge shaft 7.
[0035] The first tray 4 has a locking socket 9 on its surface. The second tray 5 can rotate upward along the hinge shaft 7 until it is completely in contact with the surface of the first tray 4. After it is in contact, the side of the second tray 5 is opposite to the side of the locking socket 9. The side of the locking socket 9 is provided with a locking hole 901.
[0036] The second support plate 5 is provided with a mounting groove 10 on the side that does not fit with the first support plate 4. The mounting groove 10 is provided with a pin through hole 1001 on the side near the locking hole 901. The mounting groove 10 is provided with a mounting rail 1002 parallel to the axis of the locking hole 901 in the side wall. It also includes a sliding pin 8 installed in the mounting groove 10 and slidably engaged with the mounting rail 1002.
[0037] The sliding pin 8 has a pin head 801 at one end near the locking hole 901 that can pass through the pin through hole 1001 and the locking hole 901, and a spring 11 is connected to the other end between it and the side wall of the mounting groove 10.
[0038] The foldable leg rest provided by this utility model allows the angle of the leg rest body, i.e., the first support plate 4, to be adjusted via a gear rotator 6. A second support plate 5 is then hinged to the outside of the first support plate 4 via a hinge shaft 7. The outside of the second support plate 5 is supported on the bottom surface, or a limiting device is provided on the second support plate 5, so that the second support plate 5 and the first support plate 4 are fixed at a certain angle after being opened, thereby extending the length of the leg rest. A spring 11 pushes outward the sliding pin 8, which is slidably connected to the second support plate 5, causing the pin head 801 to extend out of the second support plate 5 and engage with the locking socket 9 fixed to the first support plate 4. This allows the first support plate 4 and the second support plate 5 to be folded up when the leg rest is not in use. This utility model extends the length of the leg rest when the second support plate 5 is open, increasing seat comfort. When the leg rest is not in use, it can be folded and stored, reducing storage volume. Furthermore, the leg rest opening process is simple and convenient to use.
[0039] In this utility model, the sliding pin 8 is slidably engaged with the second support plate 5 via the mounting slide rail 1002. While the sliding pin 8 can slide along the length direction of the second support plate 5, the sliding pin 8 cannot move along the thickness direction of the second support plate 5 and fall out of the mounting slide groove 10.
[0040] like Figure 7 As shown, the outer surface of the sliding pin 8 is provided with a pin baffle 13, which covers the mounting groove 10. The four edges of the pin baffle 13 overlap the surface of the second support plate 5. A spring mounting through hole 803 is provided on the pin baffle 13, and its width is greater than or equal to the outer diameter of the spring 11.
[0041] In this utility model, the mounting groove 10 can be covered by the pin baffle 13. When the sliding pin 8 moves along the mounting rail 1002, the mounting groove 10 is prevented from contacting dust, thereby extending the service life of the leg support.
[0042] In this utility model, the pin baffle 13 can be covered outside the mounting groove 10 to block external dust and extend the service life of the locking device.
[0043] like Figure 4 , Figure 7 As shown, the outer surface of the pin baffle 13 is provided with a push handle 802 for pushing the sliding pin 8 along the mounting slide rail 1002.
[0044] like Figure 7As shown, the top of the pin head 801 is provided with a pin guide slope 806, which is located between the side of the pin head 801 away from the pin baffle 13 and the top surface of the pin head 801, and is used to guide the pin head 801 into the locking hole 901.
[0045] like Figure 6 As shown, the top of the locking socket 9 is provided with a locking guide slope 902, which is located between the side of the locking socket 9 near the second support plate 5 and the top surface of the locking socket 9, and is used to guide the second support plate 5 to fit against the surface of the first support plate 4.
[0046] like Figure 7 , Figure 8 As shown, two mounting slide rails 1002 are symmetrically installed on both sides of the mounting groove 10, perpendicular to the hinge shaft 7, and multiple mounting notches 1003 are provided on the mounting slide rails 1002; mounting grooves 804 matching the mounting slide rails 1002 are provided on both sides of the sliding pin 8, and multiple fixing protrusions 805 corresponding to each mounting notch 1003 are provided on the side of the mounting groove 804; wherein, the width of the sliding pin 8 is the same as that of the mounting groove 10, the thickness of the sliding pin 8 is less than or equal to the depth of the mounting groove 10, the distance between the fixing protrusion 805 and the bottom surface of the mounting groove 804 is greater than or equal to the thickness of the mounting slide rail 1002, and the length of the fixing protrusion 805 is less than or equal to the length of the mounting notch 1003.
[0047] In this invention, when installing the sliding pin 8, the fixing protrusion 805 can be aligned with the mounting notch 1003 first. The fixing protrusion 805 is placed at the bottom of the mounting groove 10 from the mounting notch 1003. Then, the sliding pin 8 is slid along the mounting rail 1002 so that the mounting rail 1002 enters between the fixing protrusion 805 and the mounting groove 804. Then, the spring 11 is placed between the bottom of the sliding pin 8 and the side wall of the mounting groove 10 through the spring mounting through hole 803, making it difficult for the fixing protrusion 805 to return to the corresponding position of the mounting notch 1003. This ensures that during the opening of the second tray 5, the fixing protrusion 805 slides out of the mounting notch 1003, causing the sliding pin 8 to fall out of the mounting groove 10, thus completing the installation operation of the sliding pin 8.
[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the mounting base includes two spaced mounting brackets 12. The two mounting brackets 12 are rotatably connected to the side of the first tray 4 via gear shift rotators 6. The two gear shift rotators 6 are symmetrically arranged on the side of the first tray 4.
[0049] In this embodiment, the rotation angle of the gear rotator 6 includes one or more of the following: 75°, 90°, 105°, 120°, 135°, 150°, 165°, and 180°.
[0050] In this embodiment, the gear shifter 6 is a watch hinge.
[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this utility model also provides a seat with a foldable leg rest, including a seat body 2, a seat back 1 and a seat support 3. A foldable leg rest is installed on the lower surface of the seat body 2. The mounting base is fixedly connected to the lower surface of the seat body 2, and the gear shift rotator 6 is installed directly below the outer edge of the seat body 2.
[0052] The foldable leg rest seat provided by this utility model can adjust the angle of the leg rest body, i.e., the first support plate 4, through the gear shifter 6. Then, the first support plate 4 and the second support plate 5 are hinged through the hinge shaft 7. The sliding pin 8, which is slidably connected to the second support plate 5, is pushed by the spring 11, so that the pin head 801 is inserted into the locking socket 9 fixed on the first support plate 4, thereby folding the first support plate 4 and the second support plate 5. When the second support plate 5 is opened, the leg rest length can be extended, increasing the comfort of the seat.
[0053] This utility model provides a seat with a foldable leg rest, wherein two mounting brackets 12 are respectively fixed to both sides of the lower surface of the seat body 2. The implementation method includes the following steps:
[0054] 1) When the leg rest is needed, lift the first support plate 4 to the required angle along the gear shift 6, push the sliding pin 8 backward to compress the spring 11 until the pin head 801 slides out of the locking hole 901, unlock the first support plate 4 and the second support plate 5, rotate the second support plate 5 along the hinge axis 7 to extend the length of the leg rest, so that the legs can be placed on the first support plate 4 and the second support plate 5 to increase the comfort of the seat;
[0055] 2) When the leg rest needs to be retracted, rotate the second support plate 5 upward along the hinge shaft 7 until the pin guide slope 806 is in contact with the locking guide slope 902. At this time, pull down the push handle 802 to compress the spring 11 or continue to apply pressure to the second support plate 5 to make the second support plate 5 fit with the first support plate 4. The pin head 801 slides into the locking hole 901 to lock the first support plate 4 and the second support plate 5. Then push the first support plate 4 backward to make it rotate along the gear shift rotator 6 to retract the first support plate 4 and restore the seat to its normal use state.
[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A foldable leg rest, characterized in that: Includes a mounting base, on one side of which a first tray (4) is rotatably mounted via a gear rotator (6), and on the other side of the first tray (4) a second tray (5) is hinged via a hinge shaft (7); Among them, the surface of the first tray (4) is provided with a locking socket (9), and the second tray (5) can be rotated upward along the hinge axis (7) until it is completely in contact with the surface of the first tray (4). After being in contact, the side of the second tray (5) is set opposite to the side of the locking socket (9), and the side of the locking socket (9) is provided with a locking hole (901). The second tray (5) has an installation groove (10) on the side that does not fit with the first tray (4). The installation groove (10) has a pin through hole (1001) on the side near the locking hole (901). The side wall of the installation groove (10) has an installation rail (1002) parallel to the axis of the locking hole (901). It also includes a sliding pin (8) installed in the installation groove (10) and slidably engaged with the installation rail (1002). The sliding pin (8) has a pin head (801) at one end near the locking hole (901) that can pass through the pin through hole (1001) and the locking hole (901), and a spring (11) at the other end is in contact with the side wall of the mounting groove (10).
2. The foldable leg rest according to claim 1, characterized in that: The outer surface of the sliding pin (8) is provided with a pin baffle (13), which covers the mounting groove (10). The four edges of the pin baffle (13) overlap the surface of the second support plate (5). A spring mounting through hole (803) is provided on the pin baffle (13), and its width is greater than or equal to the outer diameter of the spring (11).
3. The foldable leg rest according to claim 2, characterized in that: The outer surface of the pin baffle (13) is provided with a push handle (802) for pushing the sliding pin (8) along the mounting slide rail (1002).
4. The foldable leg rest according to claim 3, characterized in that: The top of the pin head (801) is provided with a pin guide slope (806), which is located between the side of the pin head (801) away from the pin baffle (13) and the top surface of the pin head (801), for guiding the pin head (801) into the locking socket (901).
5. The foldable leg rest according to claim 4, characterized in that: The top of the locking socket (9) is provided with a locking guide slope (902), which is located between the side of the locking socket (9) near the second tray (5) and the top surface of the locking socket (9), and is used to guide the second tray (5) to fit against the surface of the first tray (4).
6. The foldable leg rest according to claim 5, characterized in that: Two mounting slide rails (1002) are symmetrically installed in the mounting groove (10) on both sides perpendicular to the hinge shaft (7), and multiple mounting notches (1003) are provided on the mounting slide rails (1002); mounting grooves (804) matching the mounting slide rails (1002) are provided on both sides of the sliding pin (8), and multiple fixing protrusions (805) corresponding to each mounting notch (1003) are provided on the side of the mounting groove (804); wherein, the width of the sliding pin (8) is the same as that of the mounting groove (10), the thickness of the sliding pin (8) is less than or equal to the depth of the mounting groove (10), the distance between the fixing protrusion (805) and the bottom surface of the mounting groove (804) is greater than or equal to the thickness of the mounting slide rail (1002), and the length of the fixing protrusion (805) is less than or equal to the length of the mounting notch (1003).
7. The foldable leg rest according to claim 6, characterized in that: The mounting base includes two spaced mounting brackets (12), which are rotatably connected to the side of the first tray (4) via gear shifters (6). The two gear shifters (6) are symmetrically arranged on the side of the first tray (4).
8. The foldable leg rest according to claim 7, characterized in that: The rotation angle of the gear rotator (6) includes one or more of the following: 75°, 90°, 105°, 120°, 135°, 150°, 165°, and 180°.
9. The foldable leg rest according to claim 8, characterized in that: The gear shifter (6) is a watch hinge.
10. A seat with a foldable leg rest, characterized in that: The seat includes a seat body (2), a seat back (1) and seat legs (3), and the lower surface of the seat body (2) is equipped with a foldable leg rest as described in any one of claims 1-9.