One-touch adjustment of lifting mechanism and seat

Abstract

The utility model discloses a lifting mechanism and a seat with one-button adjustment, the lifting mechanism with one-button adjustment comprises two columns, a lifting rod, two locking members, and a driving member; the lifting rod is located between the two columns, and the two ends of the lifting rod are respectively slidably matched with the two columns, and a plurality of positioning parts are arranged on the columns; the two locking members are respectively installed at the two ends of the lifting rod and respectively correspond to the two columns, and the locking member is provided with a clamping part facing the column; an elastic member is arranged between the locking member and the lifting rod, and the elastic member pushes the clamping part toward the column, so that the clamping part is combined with one of the positioning parts on the column to lock the lifting rod with the column; the driving member is installed on the lifting rod, and is used to drive the two locking members to move away from the corresponding column at the same time, so that the clamping parts on the two locking members are simultaneously separated from the positioning parts combined therewith. The utility model can conveniently and quickly complete the adjustment of the height of the lifting rod by single-handed operation.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a lifting mechanism and a seat that can be adjusted with one button. Background Art

[0002] The seat cushion and footrest of traditional chairs adopt a fixed structure, and the user cannot adjust the height of the seat cushion and footrest according to his or her height and sitting posture, making it difficult for the chair to meet the user's individual needs. In order to solve the above-mentioned defects of traditional chairs, some chairs are provided with a structure that the seat cushion and footrest can be adjusted up and down. The user can adjust the height of the seat cushion and footrest according to his or her height and sitting posture to keep the seat cushion and footrest in a more comfortable state. However, the mechanism for adjusting the height of the seat cushion and footrest in the existing chairs is relatively cumbersome to use. Specifically, during the adjustment process, it is necessary to open the locks on both sides respectively to move the seat cushion or footrest up and down, and one-handed operation cannot be achieved. The process of adjusting the seat cushion or footrest up and down is time-consuming and laborious. Utility Model Content

[0003] The utility model aims to provide a lifting mechanism and a seat with one-touch adjustment, so that the lifting operation can be completed quickly with one hand.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A one-button adjustable lifting mechanism includes two opposed columns, a lifting rod, two locking members, and a driving member;

[0006] The lifting rod is located between the two columns, and the two ends of the lifting rod are respectively slidably matched with the two columns so that the lifting rod can slide relative to the two columns in the height direction, and the columns are provided with a plurality of positioning parts arranged along the height direction of the columns;

[0007] The two locking members are respectively installed at the two ends of the lifting rod and correspond to the two columns respectively. The locking members are provided with a locking portion facing the column; an elastic member is provided between the locking member and the lifting rod, and the elastic member pushes the locking portion toward the column so that the locking portion is combined with one of the positioning portions on the column to lock the lifting rod and the column; a driving member is installed on the lifting rod, and is used to drive the two locking members to move away from the corresponding columns at the same time, so that the locking portions on the two locking members are simultaneously disengaged from the positioning portions combined with them.

[0008] Preferably, two connecting rods are installed inside the lifting rod, and the two locking members are respectively fixed to the outer ends of the two connecting rods, and the inner ends of the two connecting rods respectively form a toggle end; the driving member includes a handle installed outside the lifting rod and rotating with the lifting rod, and a turntable located inside the lifting rod and fixedly connected to the handle, and two toggle rods are arranged on the periphery of the turntable, and the two toggle rods are respectively matched with the two toggle ends, so that when the handle drives the turntable to rotate, the two toggle ends are driven to move so that the two connecting rods drive the two locking members to move away from the corresponding columns at the same time.

[0009] Preferably, an extension portion is provided at the inner end of the connecting rod, and the extension portions of the two connecting rods are respectively located on both sides of the turntable. The toggle end is a convex column arranged on the extension portion and the extension direction is consistent with the rotation axis of the turntable. The two toggle rods on the turntable are respectively abutted against the side of the toggle end close to the locking member, and the side where the toggle rod abuts against the toggle end is arc-shaped to accommodate the convex column.

[0010] Preferably, the lifting rod includes an inner bracket and a sleeve sleeved on the outside of the inner bracket, the inner bracket is provided with a mounting groove and a limit column, the connecting rod is slidably embedded in the mounting groove, the connecting rod is provided with a limit guide groove, the limit column is embedded in the limit guide groove and can slide between the two ends of the limit guide groove.

[0011] Preferably, an axial hole is provided in the middle of the inner bracket, the handle and the turntable are fixedly connected and pivoted in the axial hole, and a pressure plate pressed on the turntable to prevent the turntable from moving axially along the axial hole is fixedly connected to the inner bracket by screws.

[0012] Preferably, a slider is provided at each end of the lifting rod, and the slider includes a connecting seat fixedly connected to the end of the lifting rod, and a sliding plate located outside the connecting seat; a sliding groove with a C-shaped cross section is provided on the column, and the sliding plate is slidably embedded in the sliding groove, and the two sides of the sliding plate are respectively clamped on the two sides of the sliding groove to prevent the sliding plate from detaching from the sliding groove along the length direction of the lifting rod.

[0013] Preferably, the locking portion is a latch provided on the locking member, the sliding plate is provided with a guide hole for the latch to pass through and guide the latch, and the positioning portion is a pin hole provided on the bottom surface of the slide groove for the latch to be inserted.

[0014] Preferably, the locking piece is fixed to the outer end of the connecting rod, and is provided with a flange protruding radially outward. The elastic piece is a spring sleeved on the outside of the connection between the locking piece and the connecting rod, and the inner end of the spring abuts against the outer end surface of the inner bracket and the outer end abuts against the flange.

[0015] The seat comprises the above-mentioned one-touch adjustable lifting mechanism and a seat cushion, wherein the seat cushion is mounted on the lifting rod.

[0016] The seat comprises the above-mentioned one-touch adjustable lifting mechanism and a footrest, wherein the footrest is mounted on the lifting rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] By operating the driving member, the driving member drives the two locking members to move at the same time. After the two locking members move a certain distance away from the two posts at the same time, the locking parts on the two locking members are separated from the positioning parts on the two posts at the same time, so that the lifting rod has the freedom to move along the height direction of the posts. During the operation, the user can move the lifting rod up or down while turning the driving member, and the height adjustment of the lifting rod can be completed conveniently and quickly with one hand. After the adjustment is completed, the external force on the driving member is released, and the locking member is pushed toward the post by the elastic stress of the elastic member. The locking part on the locking member is combined with the positioning part of the corresponding height on the post, so that the lifting rod is fixed to the required height. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of a use state of the utility model;

[0021] Figure 3 for Figure 2 Magnified view at A in the middle;

[0022] Figure 4 for Figure 2 Magnified view at B in the middle;

[0023] Figure 5 This is another schematic diagram of the use state of the utility model;

[0024] Figure 6 The utility model is a structural schematic diagram of a seat.

[0025] Among them: 10, column; 11, slide groove; 12, pin hole; 20, sleeve; 200, lifting rod; 30, slider; 31, connecting seat; 32, sliding plate; 33, guide hole; 40, locking piece; 401, latch; 402, flange; 41, connecting rod; 411, limiting guide groove; 412, extension part; 413, toggle end; 42, spring; 50, handle; 501, shaft; 51, turntable; 511, toggle rod; 52, pressure plate; 60, inner bracket; 61, shaft hole; 62, mounting groove; 63, limiting column; 70, pedal. DETAILED DESCRIPTION

[0026] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] like Figure 1 , 2, 3, 4, and 5 show a one-button adjustable lifting mechanism of the utility model, which includes two opposing columns 10, a lifting rod 200, two locking members 40, and a driving member; a plurality of positioning parts arranged along the height direction are provided on the column 10, and the plurality of positioning parts are specifically a plurality of pin holes 12 arranged on the column 10 along the height direction, the lifting rod 200 is located between the two columns 10, and its two ends are respectively slidably mounted on the two columns 10, so that the lifting rod 200 can slide relative to the two columns 10 in the height direction; the two locking members 40 are respectively mounted at the two ends of the lifting rod 200, the locking members 40 and the lifting rod 200 are movably matched, and the two locking members 40 correspond to the two columns 10 respectively, and a locking member 40 is provided with a positioning member matching the positioning member, and the positioning member is specifically a locking member arranged on the locking member 40 and is compatible with the pin holes 12 The shape-matched latch 401 can be inserted into one of the pin holes 12 of the column 10 according to the movable matching structure of the locking member 40 and the lifting rod 200; a spring 42 is arranged between each locking member 40 and the lifting rod 200, and the elastic stress provided by the spring 42 makes the locking member 40 always maintain the tendency to move toward the corresponding column 10, that is, the spring 42 always pushes the latch 401 on the locking member 40 toward the column 10, and then the latch 401 on the locking member 40 is connected to one of the pin holes 12 of the column 10, so that the latch 401 is combined with the pin hole 12 to lock the lifting rod 200 and the column 10, and the latch 401 on the locking member 40 arranged at both ends of the lifting rod 200 is respectively combined with two pin holes 12 of the same height on the two columns 10, so that the lifting rod 200 remains fixed in the height direction. The driving member is installed on the lifting rod 200, and is used to drive the two locking members 40 to move away from the corresponding columns 10 at the same time. After the two locking members 40 are driven by the driving member and move away from the corresponding columns 10 at the same time, the latches 401 on the two locking members 40 are simultaneously disengaged from the pin holes 12 of the same height on the two columns 10, that is, the latches 401 are no longer combined with the pin holes 12, so that both ends of the lifting rod 200 have the freedom to slide in the height direction of the two columns 10 at the same time. At this time, the lifting rod 200 can be moved up and down to adjust the height of the lifting rod 200. It should be pointed out that in other embodiments, the spring 42 can be replaced by other elastic elements, such as elastic rubber blocks, tension springs, etc.

[0030] In the utility model, by operating the driving member, the driving member drives the two locking members 40 to move at the same time. After the two locking members 40 move a certain distance away from the two posts 10 at the same time, the locking parts on the two locking members 40 are separated from the positioning parts on the two posts 10 at the same time, so that the lifting rod 200 has the freedom to move along the height direction of the posts 10. During the operation, the user can move the lifting rod 200 up or down while turning the driving member, and the height adjustment of the lifting rod 200 can be completed conveniently and quickly by one-handed operation. After the adjustment is completed, the external force on the driving member is released, and the locking member 40 is pushed toward the post 10 by the elastic stress of the elastic member, and the locking part on the locking member 40 is combined with the positioning part of the corresponding height on the post 10, so that the lifting rod 200 is fixed to the required height.

[0031] The driving member can be installed on the lifting rod 200 in a rotating manner, and by rotating the driving member, the two locking members 40 are driven to move in the lateral direction of the column 10 (i.e., the extension direction of the lifting rod 200). During operation, the user rotates the driving member with one hand to move the locking member 40 to a state where the locking portion is disengaged from the positioning portion, and then moves the lifting rod 200 up and down to adjust the height of the lifting rod 200. Of course, the driving member can also be installed on the lifting rod 200, and the driving member is operated by pressing, so that the driving member simultaneously drives the two locking members 40 to move away from the column 10 during the process of moving up and down or moving forward and backward, thereby achieving the purpose of single-handed operation and convenient and quick adjustment of the height of the lifting rod 200.

[0032] In a preferred embodiment, the structure in which the driving member is rotatably mounted on the lifting rod 200 is as follows:

[0033] Two connecting rods 41 are installed inside the lifting rod 200, and two locking members 40 are respectively fixed to the outer ends of the two connecting rods 41. The inner sides of the two connecting rods 41 respectively form a toggle end 413. The driving member includes a handle 50 installed outside the lifting rod 200 and a turntable 51 located inside the lifting rod 200. The handle 50 is rotatably matched with the lifting rod 200, and the turntable 51 is fixedly connected to the handle 50. By rotating the handle 50, the turntable 51 can be driven relative to the lifting rod. The lowering rod 200 rotates, and two levers 511 protruding radially outward are provided on the periphery of the turntable 51. The two levers 511 are matched with the driving ends 413 of the two connecting rods 41 respectively. When the handle 50 is rotated, the turntable 51 is driven to rotate, and the two levers 511 on the turntable 51 respectively drive the two driving ends 413 to move the two driving ends 413 at the same time, thereby causing the two connecting rods 41 to drive the two locking members 40 to move at the same time, and the latches 401 on the two locking members 40 move synchronously.

[0034] like Figure 2As shown, the latch pins 401 on the two locking members 40 are respectively inserted into the pin holes 12 on the two columns 10, and the two locking members 40 respectively lock the two ends of the lifting rod 200 with the two columns 10, so that the lifting rod 200 and the two columns 10 remain relatively fixed and the lifting rod 200 can withstand a certain downward pressure; when the height position of the lifting rod 200 needs to be adjusted, as shown in FIG. Figure 5 As shown, the handle 50 is rotated to make the two levers 511 on the turntable 51 push the two connecting rods 41 at the same time, and the outer ends of the two connecting rods 41 are respectively retracted toward the inside of the lifting rod 200, thereby driving the locking member 40 away from the corresponding column 10, so that the pin 401 is disengaged from the pin hole 12, and the lifting rod 200 can be moved up and down at this time.

[0035] An extension portion 412 is provided at the inner end of the connecting rod 41. The extension portions 412 on the two connecting rods 41 are respectively located on both sides of the turntable 51, so that the two connecting rods 41 avoid interference with the driving member when being driven by the driving member. The toggle end 413 is a convex column provided on the extension portion 412. The extension direction of the convex column is consistent with the rotation axis of the turntable 51, so that the two toggle rods 511 on the turntable 51 can respectively abut against the two toggle ends 413. The two toggle rods 511 on the turntable 51 are respectively abutted against one side of the two toggle ends 413 close to the locking member 40. The side of the toggle rod 511 abutting against the toggle end 413 is arc-shaped to accommodate the toggle end 413 to prevent the toggle rod 511 from being separated from the toggle end 413.

[0036] To facilitate the installation of the connecting rod 41, the lifting rod 200 includes an inner bracket 60 and a sleeve 20 sleeved on the outside of the inner bracket 60. The inner bracket 60 is provided with a mounting groove 62 and a limiting column 63. The connecting rod 41 is slidably embedded in the mounting groove 62. The mounting groove 62 matches the external shape of the connecting rod 41, thereby guiding the connecting rod 41 inside the lifting rod 200 and guiding the connecting rod 41 to move along the length direction of the lifting rod 200. A limiting guide groove 411 is provided on the connecting rod 41, and the limiting column 63 is embedded in the limiting guide groove 411. When the connecting rod 41 moves along the length direction of the lifting rod 200, the limiting column 63 can slide between the two ends of the limiting guide groove 411. While the limiting column 63 and the limiting guide groove 411 are used to guide the movement of the connecting rod 41, the travel of the connecting rod 41 along the length direction of the lifting rod 200 can also be limited to remind the user whether the handle 50 is rotated into place.

[0037] An axial hole 61 is set in the middle of the inner bracket 60, and the handle 50 has an axial portion 501, which is inserted into the axial hole 61, and the turntable 51 is fixedly connected to the axial portion 501, so that the assembly composed of the handle 50 and the turntable 51 is pivotally connected in the axial hole 61, so that the assembly can rotate relative to the lifting rod 200, and a pressure plate 52 is fixedly connected to the inner bracket 60 by screws, and the pressure plate 52 is pressed on the turntable 51 to prevent the turntable 51 from moving axially along the axial hole 61, so that the lever 511 on the turntable 51 can stably abut against the driving end 413 of the connecting rod 41.

[0038] See also Figure 1 As shown, a slider 30 is respectively provided at both ends of the lifting rod 200, and the slider 30 includes a connecting seat 31 fixedly connected to the end of the lifting rod 200, and a sliding plate 32 located on the outside of the connecting seat 31. A sliding groove 11 extending along the length direction of the column 10 is provided on the column 10, and the cross-sectional shape of the sliding groove 11 is "C"-shaped. The sliding plate 32 is slidably embedded in the sliding groove 11, and the two sides of the sliding plate 32 are respectively clamped on the two sides of the sliding groove 11, so that the sliding plate 32 can slide along the extension direction of the sliding groove 11 and prevent the sliding plate 32 from detaching from the sliding groove 11 along the length direction of the lifting rod 200. The locking member 40 is fixedly connected to the outer end of the connecting rod 41. The locking member 40 is provided with a flange 402 protruding outward in the radial direction thereof. The flange 402 may be provided at the inner end of the latch 401. The spring 42 is sleeved on the outside of the connection between the locking member 40 and the connecting rod 41. The inner end of the spring 42 abuts against the outer end surface of the inner bracket 60, and the outer end abuts against the flange 402, so that the spring 42 always pushes the locking member 40 toward the column 10. A guide hole 33 is also provided on the sliding plate 32. The latch 401 passes through the guide hole 33 and is inserted into one of the pin holes 12. The latch 401 can be guided by the guide hole 33.

[0039] It should be pointed out that in the present invention, the locking portion provided on the locking member 40 is not limited to the above-mentioned pin 401, and the positioning portion provided on the column 10 is not limited to the above-mentioned pin hole 12. In other embodiments, the locking portion on the locking member 40 can be a groove or a hole, and correspondingly, the positioning portion on the column 10 is a protruding structure matching the groove and the hole. In short, as long as the locking portion and the positioning portion can be combined with each other to limit the relative position of the locking member 40 and the column 10 in the height direction, the fixing of the lifting rod 200 and the column 10 can be achieved.

[0040] Figure 6A seat of the present invention is shown, which includes the above-mentioned one-touch adjustable lifting mechanism and a footrest 70, and the footrest 70 is fixedly connected to the lifting rod 200. Another seat of the present invention includes the above-mentioned one-touch adjustable lifting mechanism and a seat cushion, and the seat cushion is fixedly connected to the lifting rod 200. The other structures of the seat of the present invention are the same as those of the prior art and are not described in detail here.

[0041] Finally, it should be noted that the above-mentioned implementation modes are only optional embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. One-button adjustable lifting mechanism, characterized in that: It includes two opposing columns, a lifting rod, two locking members, and a driving member; The lifting rod is located between the two columns, and the two ends of the lifting rod are respectively slidably matched with the two columns so that the lifting rod can slide relative to the two columns in the height direction, and the columns are provided with a plurality of positioning parts arranged along the height direction of the columns; The two locking members are respectively installed at the two ends of the lifting rod and correspond to the two columns respectively. The locking members are provided with a locking portion facing the column; an elastic member is provided between the locking member and the lifting rod, and the elastic member pushes the locking portion toward the column so that the locking portion is combined with one of the positioning portions on the column to lock the lifting rod and the column; a driving member is installed on the lifting rod, and is used to drive the two locking members to move away from the corresponding columns at the same time, so that the locking portions on the two locking members are simultaneously disengaged from the positioning portions combined with them.

2. The one-button adjustable lifting mechanism according to claim 1, characterized in that: Two connecting rods are installed inside the lifting rod, and two locking members are respectively fixed on the outer ends of the two connecting rods, and the inner ends of the two connecting rods respectively form a toggle end; the driving member includes a handle installed on the outside of the lifting rod and rotating with the lifting rod, and a turntable located inside the lifting rod and fixedly connected to the handle, and two toggle rods are arranged on the periphery of the turntable, and the two toggle rods are respectively matched with the two toggle ends, so that when the handle drives the turntable to rotate, the two toggle ends are driven to move, so that the two connecting rods drive the two locking members to move away from the corresponding columns at the same time.

3. The one-button adjustable lifting mechanism according to claim 2, characterized in that: An extension portion is provided at the inner end of the connecting rod, and the extension portions of the two connecting rods are respectively located on both sides of the turntable. The toggle end is a convex column arranged on the extension portion and the extension direction is consistent with the rotation axis of the turntable. The two toggle rods on the turntable are respectively abutted against the side of the toggle end close to the locking member, and the side where the toggle rod abuts against the toggle end is arc-shaped to accommodate the convex column.

4. The one-button adjustable lifting mechanism according to claim 2, characterized in that: The lifting rod includes an inner bracket and a sleeve sleeved on the outside of the inner bracket. The inner bracket is provided with a mounting groove and a limit column. The connecting rod is slidably embedded in the mounting groove. The connecting rod is provided with a limit guide groove. The limit column is embedded in the limit guide groove and can slide between the two ends of the limit guide groove.

5. The one-button adjustable lifting mechanism according to claim 4, characterized in that: An axial hole is arranged in the middle of the inner bracket, the handle and the turntable are fixedly connected and pivoted in the axial hole, and a pressure plate pressed on the turntable to prevent the turntable from moving axially along the axial hole is fixedly connected to the inner bracket by screws.

6. The one-button adjustable lifting mechanism according to claim 2, characterized in that: A slider is respectively arranged at both ends of the lifting rod, and the slider includes a connecting seat fixedly connected to the end of the lifting rod, and a sliding plate located outside the connecting seat; a sliding groove with a C-shaped cross-section is arranged on the column, and the sliding plate is slidably embedded in the sliding groove, and the two sides of the sliding plate are respectively clamped on the two sides of the sliding groove to prevent the sliding plate from detaching from the sliding groove along the length direction of the lifting rod.

7. The one-button adjustable lifting mechanism according to claim 6, characterized in that: The locking portion is a latch pin arranged on the locking member, the sliding plate is provided with a guide hole for the latch pin to pass through and guide the latch pin, and the positioning portion is a pin hole arranged on the bottom surface of the slide slot for the latch pin to be inserted into.

8. The one-button adjustable lifting mechanism according to claim 7, characterized in that: The locking piece is fixed to the outer end of the connecting rod, and is provided with a flange protruding radially outward. The elastic piece is a spring sleeved on the outside of the connection between the locking piece and the connecting rod, and the inner end of the spring abuts against the outer end surface of the inner bracket and the outer end abuts against the flange.

9. A seat, characterized in that: It comprises the one-touch adjustable lifting mechanism as claimed in any one of claims 1 to 8, and a seat cushion, wherein the seat cushion is mounted on the lifting rod.

10. A seat, characterized in that: It comprises the one-touch adjustable lifting mechanism as claimed in any one of claims 1 to 8, and a foot pedal, wherein the foot pedal is mounted on the lifting rod.

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