CN219982501U - Combined control structure for backward elevation - Google Patents
Combined control structure for backward elevation Download PDFInfo
- Publication number
- CN219982501U CN219982501U CN202320453425.2U CN202320453425U CN219982501U CN 219982501 U CN219982501 U CN 219982501U CN 202320453425 U CN202320453425 U CN 202320453425U CN 219982501 U CN219982501 U CN 219982501U
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- China
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- handle
- back frame
- hole
- elastic sheet
- locking block
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- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a combined control structure for backward elevation, which comprises a handle, a back frame locking block, an elastic sheet, a rotary sleeve and a fixed shaft, wherein the fixed shaft is vertically and fixedly arranged; one end of the handle is a control end, the other end of the handle is an operation end, the control end is arranged above the elastic sheet, the elastic sheet is abutted with the air rod for controlling the lifting of the seat frame, and when the handle rotates in the vertical direction, the handle drives the elastic sheet to move in the vertical direction so as to relax or press the air rod; the back frame locking block is movably connected with the control end, and when the handle rotates in the horizontal direction, the handle drives the back frame locking block to move in the horizontal direction so as to lock or separate from the back frame connecting block. The utility model controls the lifting of the chair through the up-and-down rotation of the handle, controls the forward tilting and backward tilting of the chair through the forward-and-backward rotation, and concentrates the forward tilting and backward tilting and lifting control on one handle, thereby simplifying the structure, reducing the cost and simultaneously facilitating the operation.
Description
Technical Field
The utility model relates to office chairs, in particular to a backward elevation combined control structure.
Background
Office chairs generally have the functions of lifting and lowering the seat frame and tilting the back frame forward and backward, and the control structure of the office chair is generally provided with two control handles: one for controlling the elevation of the chair and the other for controlling the forward tilting and backward tilting of the back frame. The structure is complex, the occupied space is occupied, and the operation is unchanged for the user. The user often needs to consider which handle is what function. Therefore, it is necessary to design a combined control structure for raising and lowering the pitch back and the raising and lowering functions, and to integrate the control operations of the pitch back and the raising and lowering functions on one handle, thereby simplifying the structure and reducing the cost.
Disclosure of Invention
The utility model aims to solve the technical problems of complex structure and inconvenient operation by providing a backward elevation combined control structure, and solving the problems that the existing control structure needs to be provided with two control handles for respectively controlling elevation of the height of a chair and forward elevation and backward elevation of a back frame.
The technical scheme adopted by the utility model for solving the technical problems is to provide a backward elevation combined control structure, which comprises a handle, a back frame locking block, an elastic sheet, a rotary sleeve and a fixed shaft, wherein the fixed shaft is vertically and fixedly arranged, the rotary sleeve is sleeved outside the fixed shaft and can freely rotate along the fixed shaft, and the handle is movably connected with the outer wall of the rotary sleeve at the middle part; one end of the handle is a control end, the other end of the handle is an operation end, the control end is arranged above the elastic sheet, the elastic sheet is abutted with an air rod for controlling the lifting of the seat frame, and when the handle rotates in the vertical direction, the handle drives the elastic sheet to move in the vertical direction, so that the air rod is loosened or pressed, and lifting adjustment is realized; the back frame locking block is movably connected with the control end, and when the handle rotates in the horizontal direction, the handle drives the back frame locking block to move in the horizontal direction, so that the back frame locking block is locked or separated from the back frame connecting block, and the backward adjustment is realized.
Further, a rotary cylinder is arranged on the outer wall of the rotary sleeve, the rotary cylinder is perpendicular to the rotary sleeve, and a threaded hole is formed in the center of the rotary cylinder; one side of the middle part of the handle is provided with a rotary shaft hole matched with the rotary cylinder, the other side of the middle part of the handle is provided with a screw hole, and the rotary shaft hole is communicated with the screw hole; the rotary cylinder is arranged in the rotary shaft hole, a connecting screw is arranged in the screw hole, and the connecting screw is screwed into the screw hole and connected with the rotary cylinder, so that the handle can rotate along the rotary cylinder in the vertical direction.
Further, the control end is provided with a U-shaped groove, the back frame locking block is rectangular, a movable cylinder is arranged at the bottom of the back frame locking block, and the movable cylinder is arranged in the U-shaped groove.
Further, one end of the elastic sheet is provided with a fixing hole, and a contact is arranged below the other end of the elastic sheet and is abutted to the air rod.
Further, the multifunctional electric power steering device also comprises a chassis bracket, wherein a square through hole is transversely and penetratingly arranged on the chassis bracket, and the square through hole accommodates the control end of the handle and allows the control end of the handle to rotate within a certain range in the vertical direction and the horizontal direction; the chassis support is longitudinally provided with a T-shaped groove perpendicular to the square through hole, and the T-shaped groove accommodates the back frame locking block and limits the moving direction of the back frame locking block.
Further, a fixed shaft hole for installing the fixed shaft is formed in one side of the chassis support, and the fixed shaft hole is located at one end of the square through hole.
Further, a taper hole for installing the air rod is formed in the bottom of the chassis support, the taper hole corresponds to the square through hole and the T-shaped groove, and the elastic sheet is arranged at the bottom in the T-shaped groove.
Further, a mounting hole is formed in the bottom of the T-shaped groove, and the elastic sheet is fixed to the mounting hole through a screw.
Further, the chassis support is connected with the back frame connecting block through pin joint, the back frame connecting block is provided with a locking groove, the back frame connecting block is limited to rotate when being inserted into the locking groove, and the back frame connecting block is allowed to rotate when being separated from the locking groove.
Further, the front end of the chassis support is provided with a connecting through hole, two sides of the bottom of the back frame connecting block are provided with pin joint holes, and pin joint connection is realized through pin shafts penetrating through the connecting through hole and the pin joint holes.
Compared with the prior art, the utility model has the following beneficial effects: according to the combined control structure for the backward tilting and lifting, the elastic sheet which is abutted with the air rod is arranged at the bottom of the control end of the handle, the lifting of the chair is controlled through the up-down rotation of the handle, the back frame locking block which can lock the back frame connecting block is arranged in the control end of the handle, the forward tilting and backward tilting of the chair is controlled through the forward-backward rotation of the handle, the control operation of the forward tilting and backward tilting and lifting functions is concentrated on one handle, the structure is simplified, the cost is reduced, and the operation is convenient.
Drawings
FIG. 1 is a schematic view of a combined control structure for raising and lowering the back in an embodiment of the present utility model;
FIG. 2 is a split view of a combined control structure for raising and lowering the back in an embodiment of the present utility model;
FIG. 3 is a schematic view of a handle according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a rotary sleeve according to an embodiment of the present utility model;
FIG. 5 is a schematic view of the chassis support in an embodiment of the present utility model;
FIG. 6 is another angular cross-sectional view of a chassis support in an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a back frame connection block according to an embodiment of the present utility model.
In the figure:
1. a handle; 2. a back frame locking block; 3. a spring plate; 4. a connecting screw; 5. an air bar; 6. a fixed shaft; 7. a rotating sleeve; 8. a chassis support; 9. a back frame connecting block; 11. a U-shaped groove; 12. a rotation shaft hole; 13. screw holes; 14. a control end; 15. an operation end; 21. a moving cylinder; 71. a threaded hole; 72. rotating the cylinder; 81. square through holes; 82. a T-shaped groove; 83. a mounting hole; 85. taper holes; 86. a fixed shaft hole; 89. a connecting through hole; 91. a pin joint hole; 92. locking grooves.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
In the present utility model, the terms "upper", "lower", "top", "bottom", "inner", "outer", "lateral", "longitudinal", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The terms "mounted," "disposed," "configured," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
FIG. 1 is a schematic view of a combined control structure for raising and lowering the back in an embodiment of the present utility model; FIG. 2 is a split view of a combined control structure for raising and lowering the back in an embodiment of the present utility model; fig. 3 is a schematic view of a handle according to an embodiment of the present utility model.
Referring to fig. 1-3, the combined control structure for lifting and lowering back in the embodiment of the utility model comprises a handle 1, a back frame locking block 2, a spring plate 3, a rotary sleeve 7 and a fixed shaft 6, wherein the fixed shaft 6 is vertically and fixedly arranged, the rotary sleeve 7 is sleeved outside the fixed shaft 6 and can freely rotate along the fixed shaft 6, and the handle 1 is movably connected with the outer wall of the rotary sleeve 7 at the middle part; one end of the handle 1 is a control end 14, the other end is an operation end 15, the control end 14 is arranged above the elastic sheet 3, the elastic sheet 3 is abutted with the air rod 5 for controlling the lifting of the seat frame, and when the handle 1 rotates in the vertical direction, the elastic sheet 3 is driven to move in the vertical direction, so that the air rod 5 is loosened or pressed, and lifting adjustment is realized; the back frame locking block 2 is movably connected with the control end 14, and when the handle 1 rotates in the horizontal direction, the back frame locking block 2 is driven to move in the horizontal direction, so that the back frame connecting block 9 is locked or separated, and the backward adjustment is realized.
Specifically, the control end 14 is provided with a U-shaped groove 11, the back frame locking block 2 is rectangular, the bottom of the back frame locking block 2 is provided with a moving cylinder 21, and the moving cylinder 21 is arranged in the U-shaped groove 11. One end of the spring plate 3 is provided with a fixed hole, and a contact is arranged below the other end and is abutted with the air rod 5.
Referring to fig. 3 and 4, in the combined control structure for raising and lowering the back in the embodiment of the present utility model, a rotary cylinder 72 is disposed on the outer wall of the rotary sleeve 7, the rotary cylinder 72 is disposed perpendicular to the rotary sleeve 7, and a threaded hole 71 is disposed in the center of the rotary cylinder 72; one side of the middle part of the handle 1 is provided with a rotary shaft hole 12 matched with the rotary cylinder 72, the other side is provided with a screw hole 13, and the rotary shaft hole 12 is communicated with the screw hole 13; the rotary cylinder 72 is provided in the rotary shaft hole 12, and the connection screw 4 is provided in the screw hole 13, and the connection screw 4 is screwed into the screw hole 71 to be connected with the rotary cylinder 72, so that the handle 1 can be rotated in the vertical direction along the rotary cylinder 72.
Referring to fig. 5 and 6, the combined control structure for raising and lowering the back in the embodiment of the present utility model further includes a chassis support 8, wherein a square through hole 81 is transversely provided on the chassis support 8, and the square through hole 81 accommodates the control end 14 of the handle 1 and allows the control end to rotate within a certain range in the vertical direction and the horizontal direction; the chassis bracket 8 is longitudinally provided with a T-shaped groove 82 perpendicular to the square through hole 81, and the T-shaped groove 82 accommodates the back frame locking block 2 and defines the moving direction thereof.
Specifically, one side of the chassis bracket 8 is provided with a fixing shaft hole 86 for mounting the fixing shaft 6, and the fixing shaft hole 86 is located at one end of the square through hole 81.
Specifically, the bottom of the chassis bracket 8 is provided with a taper hole 85 for installing the air rod 5, and the taper hole 85 is arranged corresponding to the square through hole 81 and the T-shaped groove 82; the spring plate 3 is arranged at the bottom in the T-shaped groove 82, the bottom of the T-shaped groove 82 is provided with a mounting hole 83, and the spring plate 3 is fixed to the mounting hole 83 through a screw.
Referring to fig. 2 and 7, in the reclining lifting combined control structure according to the embodiment of the present utility model, the chassis support 8 and the back frame connecting block 9 are connected by pin, the back frame connecting block 9 is provided with a locking groove 92, when the back frame locking block 2 is inserted into the locking groove 92, the back frame connecting block 9 is restricted from rotating, and when the back frame locking block 2 is disengaged from the locking groove 92, the back frame connecting block 9 is allowed to rotate.
Specifically, the front end of the chassis bracket 8 is provided with a connecting through hole 89, the two sides of the bottom of the back frame connecting block 9 are provided with pin holes 91, and pin connection is realized through a pin shaft penetrating through the connecting through hole 89 and the pin holes 91.
In the embodiment of the utility model, when the handle 1 is rotated forwards and backwards in actual use, the handle 1 and the rotating sleeve 7 rotate around the fixed shaft 6, the U-shaped groove 11 of the control end 14 drives the back frame locking block 2 to move in the horizontal direction, so that the back frame locking block 2 contacts the back frame connecting block 9, and when the back frame locking block 2 is inserted into the locking groove 92 of the back frame connecting block 9, the back frame connecting block 9 is prevented from rotating, and the backward locking is realized; when the handle 1 is rotated up and down, the handle 1 rotates around the rotating sleeve 7, the control end 14 presses the elastic sheet 3 to press down, and the contact of the elastic sheet 3 contacts the head of the air rod 5, so that the air rod 5 can be lifted, and lifting adjustment is realized.
In summary, according to the combined control structure for raising and lowering the back, the spring plate 3 abutting against the air bar 5 is arranged at the bottom of the control end 14 of the handle 1, the raising and lowering of the chair is controlled by the up-down rotation of the handle 1, the back frame locking block 2 capable of locking the back frame connecting block 9 is arranged in the control end 14 of the handle 1, the forward and backward rotation of the handle 1 is used for controlling the forward and backward tilting of the chair, and the control operation of the forward and backward tilting and raising and lowering functions is concentrated on one handle 1, so that the structure is simplified, the cost is reduced, and meanwhile, the operation is convenient.
While the utility model has been described with reference to the preferred embodiments, it is not intended to limit the utility model thereto, and it is to be understood that other modifications and improvements may be made by those skilled in the art without departing from the spirit and scope of the utility model, which is therefore defined by the appended claims.
Claims (10)
1. The combined control structure for the backward elevation is characterized by comprising a handle, a back frame locking block, an elastic sheet, a rotary sleeve and a fixed shaft, wherein the fixed shaft is vertically and fixedly arranged, the rotary sleeve is sleeved outside the fixed shaft and can freely rotate along the fixed shaft, and the handle is movably connected with the outer wall of the rotary sleeve at the middle part; one end of the handle is a control end, the other end of the handle is an operation end, the control end is arranged above the elastic sheet, the elastic sheet is abutted with an air rod for controlling the lifting of the seat frame, and when the handle rotates in the vertical direction, the handle drives the elastic sheet to move in the vertical direction, so that the air rod is loosened or pressed, and lifting adjustment is realized; the back frame locking block is movably connected with the control end, and when the handle rotates in the horizontal direction, the handle drives the back frame locking block to move in the horizontal direction, so that the back frame locking block is locked or separated from the back frame connecting block, and the backward adjustment is realized.
2. The reclining lifting combination control structure according to claim 1, wherein a rotary cylinder is arranged on the outer wall of the rotary sleeve, the rotary cylinder is arranged perpendicular to the rotary sleeve, and a threaded hole is arranged in the center of the rotary cylinder; one side of the middle part of the handle is provided with a rotary shaft hole matched with the rotary cylinder, the other side of the middle part of the handle is provided with a screw hole, and the rotary shaft hole is communicated with the screw hole; the rotary cylinder is arranged in the rotary shaft hole, a connecting screw is arranged in the screw hole, and the connecting screw is screwed into the screw hole and connected with the rotary cylinder, so that the handle can rotate along the rotary cylinder in the vertical direction.
3. The reclining lifting combination control structure according to claim 1, wherein the control end is provided with a U-shaped groove, the back frame locking block is rectangular, a moving cylinder is arranged at the bottom of the back frame locking block, and the moving cylinder is arranged in the U-shaped groove.
4. The reclining lifting combination control structure according to claim 1, wherein one end of the elastic sheet is provided with a fixing hole, and a contact is arranged below the other end of the elastic sheet and is abutted with the air rod.
5. The reclining lifting combination control structure according to claim 1, further comprising a chassis bracket, wherein a square through hole is transversely provided on the chassis bracket, and the square through hole accommodates a control end of the handle and allows the handle to rotate within a certain range in a vertical direction and a horizontal direction; the chassis support is longitudinally provided with a T-shaped groove perpendicular to the square through hole, and the T-shaped groove accommodates the back frame locking block and limits the moving direction of the back frame locking block.
6. The reclining lifting combination control structure of claim 5, wherein a fixing shaft hole for installing the fixing shaft is formed at one side of the chassis bracket, and the fixing shaft hole is positioned at one end of the square through hole.
7. The lifting and lowering combined control structure according to claim 5, wherein a taper hole for installing an air rod is formed in the bottom of the chassis support, the taper hole corresponds to the square through hole and the T-shaped groove, and the elastic sheet is arranged at the bottom in the T-shaped groove.
8. The reclining elevation combination control structure of claim 7, wherein a bottom of the T-shaped groove is provided with a mounting hole, and the elastic sheet is fixed to the mounting hole by a screw.
9. The reclining elevation combination control structure of claim 5, wherein the chassis bracket is connected with the back frame connection block by a pin, the back frame connection block is provided with a locking groove, the back frame connection block is restricted from rotating when the back frame locking block is inserted into the locking groove, and the back frame connection block is allowed to rotate when the back frame locking block is disengaged from the locking groove.
10. The reclining lifting combination control structure according to claim 9, wherein a connecting through hole is formed in the front end of the chassis support, pin connection holes are formed in two sides of the bottom of the back frame connecting block, and pin connection is achieved through a pin shaft penetrating through the connecting through hole and the pin connection holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320453425.2U CN219982501U (en) | 2023-03-11 | 2023-03-11 | Combined control structure for backward elevation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320453425.2U CN219982501U (en) | 2023-03-11 | 2023-03-11 | Combined control structure for backward elevation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219982501U true CN219982501U (en) | 2023-11-10 |
Family
ID=88610803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320453425.2U Active CN219982501U (en) | 2023-03-11 | 2023-03-11 | Combined control structure for backward elevation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219982501U (en) |
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2023
- 2023-03-11 CN CN202320453425.2U patent/CN219982501U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |