CN219613425U - Pedal rotating structure - Google Patents

Abstract

The utility model discloses a pedal rotating structure, which comprises a rotating rod, wherein one end of the rotating rod is connected with a seat frame, the other end of the rotating rod is connected with a pedal, the end part of the rotating rod, which is connected with the seat frame, is provided with a rotating cylinder, the inner wall of the rotating cylinder is circumferentially provided with first teeth, a fixed shaft and a rotating shaft are arranged in the rotating cylinder, a locking block is arranged on the fixed shaft and can rotate on the fixed shaft, a second tooth is arranged on the locking block and can be meshed with the first tooth; the rotary shaft is provided with an adjusting piece, and the adjusting piece and the rotary shaft are in butt joint with the locking block, so that when the second tooth is meshed with the first tooth, the rotation of the locking block is limited, and then the rotation direction of the rotary rod is limited. The utility model sets the meshed tooth on the inner wall of the rotating cylinder of the rotating rod and the end of the locking block, and the rotating rod rotates randomly within a certain angle range clockwise or anticlockwise and maintains the holding force at any angle after rotating through the cooperation of the rotating shaft, the adjusting piece and the locking block; realizing the rotation adjustment of the pedal.

Description

Pedal rotating structure

Technical Field

The utility model relates to a pedal adjusting structure, in particular to a pedal rotating structure.

Background

Most of pedals of office chairs in the market at present are connected to the office chairs through telescopic rod structures, and when the office chairs are used, the office chairs are pulled out manually; when not in use, the device is pushed back by force. The use is very inconvenient, the operation can be performed with relatively large force, and female users feel particularly troublesome. Meanwhile, the telescopic rod structure can only stretch and retract at a horizontal height, and the rest height of feet cannot be adjusted. And the telescopic link is generally connected to the pedal on each of left and right sides, and occupation space is comparatively more, probably influences the installation of other parts of office chair. Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The utility model aims to solve the technical problems of inconvenient operation and incapability of realizing height adjustment of the existing telescopic rod type pedal adjusting structure.

The utility model provides a pedal rotating structure for solving the technical problems, which comprises a rotating rod, wherein one end of the rotating rod is connected with a seat frame, the other end of the rotating rod is connected with a pedal, the end part of the rotating rod, which is connected with the seat frame, is provided with a rotating cylinder, the inner wall of the rotating cylinder is circumferentially provided with first teeth, a fixed shaft and a rotating shaft are arranged in the rotating cylinder, a locking block is arranged on the fixed shaft, the locking block can rotate on the fixed shaft, a second tooth is arranged on the locking block, and the second tooth can be meshed with the first tooth; the rotary shaft is provided with an adjusting piece, and the adjusting piece and the rotary shaft are in butt joint with the locking block, so that when the second tooth is meshed with the first tooth, the rotation of the locking block is limited, and then the rotation direction of the rotary rod is limited.

Further, the locking block is provided with a first end and a second end, and the first end and the second end are provided with second teeth; the rotary shaft is positioned at the center of the rotary cylinder, the regulating piece is in abutting connection with the bottom of the second end, and when the second tooth of the second end is meshed with the first tooth, the rotary shaft blocks the locking block from rotating in the first direction, and the locking block blocks the rotary rod from rotating in the first direction; the adjusting piece is abutted with the bottom of the first end, when the second tooth of the first end is meshed with the first tooth, the rotating shaft stops the locking block from rotating towards the second direction, and the locking block stops the rotating rod from rotating towards the second direction.

Further, the regulating piece comprises a spring and a movable pin, the rotating shaft is connected with the movable pin through the spring, a pin hole is formed in the outer wall of the rotating shaft, a spring hole is formed in the movable pin, the spring is arranged in the spring hole, the movable pin is arranged in the pin hole, and one end of the spring is connected with the bottom of the pin hole while the other end is connected with the bottom of the spring hole.

Further, the rotary drum comprises a fixed block, wherein the fixed block is arranged at the end part of the rotary drum and is connected to the seat frame; the fixed shaft is connected to the fixed block; the rotating shaft penetrates through the fixed block and is connected with a rotating handle; the rotating shaft is driven to rotate through the rotating handle, and then the locking block is driven to rotate.

Further, one end of the fixed block is sequentially and coaxially provided with a first cylindrical boss, a second cylindrical boss and a third cylindrical boss, the inner wall of the rotary cylinder is correspondingly provided with a second stepped hole and a third stepped hole of a first stepped hole, and the first teeth are arranged on the inner wall of the second stepped hole; the first cylindrical boss, the second cylindrical boss and the third cylindrical boss are sleeved with wear-resistant sleeves.

Further, a rotating shaft hole is formed in the center of the fixed block in a penetrating manner; the top in rotatory shaft hole is provided with fixed shaft hole, be provided with on the fixed block and hold the mounting groove of locking piece, the mounting groove is limited the rotation angle of locking piece, the mounting groove sets up on the second cylinder boss.

Further, the fixed block is provided with a handle mounting groove, a circular arc-shaped guide groove is formed in the handle mounting groove, a guide lug matched with the guide groove is arranged on the rotary handle, when the rotary handle is mounted in the handle mounting groove, the guide lug is arranged in the guide groove, and the guide groove limits the rotation range of the rotary handle, and then limits the rotation angle of the rotary shaft.

Further, the inner wall of the rotary cylinder is provided with a guide limit groove, the fixed block is provided with a limit boss matched with the guide limit groove, and the guide limit groove limits the rotary angle of the rotary rod relative to the fixed block.

Further, the fixed blocks are two and are respectively arranged at two ends of the rotary cylinder, and a connecting block connected between the two fixed blocks is arranged.

Further, the movable pin, the fixed shaft and the rotating shaft are all made of stainless steel; the locking block and the rotating rod are made of aluminum alloy.

Compared with the prior art, the utility model has the following beneficial effects: according to the pedal rotating structure, the pedals and the seat frame are connected through the rotating rod, the fixed shaft, the locking piece, the rotating shaft and the adjusting piece are arranged in the rotating cylinder of the rotating rod, the meshed teeth are arranged on the inner wall of the rotating cylinder and the end part of the locking piece, and through the cooperation of the rotating shaft, the adjusting piece and the locking piece, the rotating rod rotates at any angle within a certain angle range in the clockwise direction or the anticlockwise direction and keeps at any angle after rotating; realizing the position adjustment of the pedal; the rotating force is small, the structure is smooth, and the operation is simple and labor-saving; the whole structure is simple, the function is reliable, the material is environment-friendly, the manufacture is simple, the assembly and maintenance are convenient, and the utility model is durable.

Drawings

FIG. 1 is a schematic view of a mounting frame and a pedal for a pedal rotating structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a pedal rotation structure according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram showing the change of the working state of the pedal rotating structure according to the embodiment of the utility model; FIG. 3 a is a schematic diagram of a pedal rotation structure according to an embodiment of the present utility model when the pedal rotation structure is locked in a first direction; b is a schematic diagram of unlocking the pedal rotating structure in the embodiment of the utility model; c is a schematic diagram of the pedal rotating structure in the embodiment of the utility model when locking the second direction;

FIG. 4 is a schematic diagram of a locking block structure according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating the disassembly of a pedal rotation structure according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a rotary rod according to an embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a rotary drum in an embodiment of the present utility model;

FIG. 8 is a side view of a mounting block in an embodiment of the utility model;

FIG. 9 is a cross-sectional view of a mounting block in an embodiment of the utility model;

FIG. 10 is a schematic view of a fixed block structure according to an embodiment of the present utility model;

FIG. 11 is a schematic view of another angle structure of a fixing block according to an embodiment of the present utility model;

fig. 12 is a schematic view of a rotary handle according to an embodiment of the present utility model.

In the figure:

1. a rotating rod; 2. a fixed shaft; 3. a spring; 4. a rotation shaft; 5. a movable pin; 6. a locking block; 7. a fixed block; 8. rotating the handle; 10. a wear-resistant sleeve; 11. a connecting block; 12. a first stepped hole; 13. a second stepped hole; 14. a third stepped hole; 16. a guide limit groove; 61. a rotation hole; 62. a second tooth; 63. a first end; 64. a second end; 71. a rotation shaft hole; 72. a fixed shaft hole; 73. a guide groove; 74. a mounting groove; 78. a handle mounting groove; 79. a limit boss; 711. a first cylindrical boss; 721. a second cylindrical boss; 731. a third cylindrical boss; 81. a guide projection; 101. a rotary drum; 102. a first tooth; 202. foot pedal; 205. and a seat frame.

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", "left", "right", "top", "bottom", "inner", "outer", 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. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

FIG. 1 is a schematic view of a mounting frame and a pedal for a pedal rotating structure according to an embodiment of the present utility model; fig. 2 is a schematic view of a pedal rotating structure in an embodiment of the utility model.

Referring to fig. 1-2, the pedal rotating structure in the embodiment of the utility model includes a rotating rod 1, one end of the rotating rod 1 is connected with a seat frame 205, the other end is connected with a pedal 202, the end of the rotating rod 1, which is connected with the seat frame 205, is provided with a rotating cylinder 101, the inner wall of the rotating cylinder 101 is provided with a first tooth 102 in the circumferential direction, a fixed shaft 2 and a rotating shaft 4 are arranged in the rotating cylinder 101, a locking block 6 is arranged on the fixed shaft 2, the locking block 6 can rotate on the fixed shaft 2, a second tooth 62 is arranged on the locking block 6, and the second tooth 62 can be meshed with the first tooth 102; the rotating shaft 4 is provided with an adjusting member, and both the adjusting member and the rotating shaft 4 are abutted against the locking block 6, so that when the second tooth 62 is meshed with the first tooth 102, the rotation of the locking block 6 is limited, and the rotation direction of the rotating rod 1 is further limited.

Specifically, the regulating part comprises a spring 3 and a movable pin 5, the rotary shaft 4 is connected with the movable pin 5 through the spring 3, a pin hole is formed in the outer wall of the rotary shaft 4, the movable pin 5 is provided with a spring hole, the spring 3 is arranged in the spring hole, the movable pin 5 is arranged in the pin hole, one end of the spring 3 is connected with the bottom of the pin hole, and the other end is connected with the bottom of the spring hole.

Preferably, the first tooth 102 and the second tooth 62 are isosceles triangles with a vertex angle of 90 ° to facilitate rotation of the rotary rod 1 relative to the locking block 6 in both directions.

Referring to fig. 3 and 4, in the pedal rotation structure of the embodiment of the present utility model, the locking block 6 is provided with a first end 63 and a second end 64, and the first end 63 and the second end 64 are provided with second teeth 62; in the figure, the first end 63 is a left end, and the second end 64 is a right end; a rotation hole 61 is provided in the middle of the locking block 6 for connecting the fixed shaft 2 so that the locking block 6 can rotate around the fixed shaft 2; the rotation shaft 4 is located at the center of the rotation cylinder 101;

when the rotation shaft 4 drives the spring 3 and the movable pin 5 to rotate in the second direction, the movable pin 5 moves upwards under the action of the elastic force of the spring 3, and presses the bottom surface of the locking block 6 so as to force the locking block 6 to rotate in the first direction until the second tooth 62 of the second end 64 is completely meshed with the first tooth 102 to stop; the rotation shaft 4 blocks the locking block 6 from rotating in the first direction, and the locking block 6 blocks the rotation rod 1 from rotating in the first direction; when the rotation shaft 4 drives the spring 3 and the movable pin 5 to rotate in the first direction, the movable pin 5 moves upwards under the action of the elastic force of the spring 3, and presses the bottom surface of the locking block 6 so as to force the locking block 6 to rotate in the second direction until the second tooth 62 of the first end 63 is completely meshed with the first tooth 102 to stop; the rotation shaft 4 blocks the locking block 6 from rotating in the second direction, and the locking block 6 blocks the rotation rod 1 from rotating in the second direction; in the figure, the first direction is a counterclockwise direction, and the second direction is a clockwise direction; so that the rotating lever 1 can rotate only in one direction when the second tooth 62 is engaged with the first tooth 102, and has a holding force that stays at an arbitrary angle within the rotation range.

When the rotation shaft 4 holds the spring 3 and the movable pin 5 right under the rotation hole 61, the spring 3 is compressed to the shortest length, the locking block 6 is in the horizontal position, and the second tooth 62 is disengaged from the first tooth 102 of the rotation lever 1, i.e., the rotation lever 1 can be rotated bi-directionally.

Referring to fig. 5, the pedal rotating structure in the embodiment of the present utility model further includes a fixed block 7, the fixed block 7 is disposed at an end of the rotating cylinder 101, and the fixed block 7 is connected to the seat frame 205; the fixed shaft 2 is connected to the fixed block 7; the rotating shaft 4 passes through the fixed block 7 and is connected with a rotating handle 8; the rotating shaft 4 is driven to rotate by rotating the handle 8, and then the locking block 6 is driven to rotate.

Referring to fig. 5-8, in the pedal rotating structure in the embodiment of the present utility model, a first cylindrical boss 711, a second cylindrical boss 721 and a third cylindrical boss 731 are coaxially disposed at one end of the fixed block 7 in sequence, a first step hole 12, a second step hole 13 and a third step hole 14 are correspondingly disposed on the inner wall of the rotating cylinder 101, and a first tooth 102 is disposed on the inner wall of the second step hole 13; so that the rotating rod 1 can rotate around the fixed block 7.

Preferably, the first, second and third cylindrical bosses 711, 721 and 731 are sleeved with a wear-resistant sleeve 10, and the wear-resistant sleeve 10 prevents wear caused by rotational friction between the rotating rod 1 and the fixed block 7.

Preferably, the fixing blocks 7 are two and are provided at both ends of the rotary cylinder 101, respectively, between the two fixing blocks 7 are provided connecting blocks 11 connected, and the connecting blocks 11 are fixed to the fixing blocks 7 by screws.

Referring to fig. 9, in the pedal rotation structure of the embodiment of the present utility model, a rotation shaft hole 71 is provided through the center of the fixed block 7; the fixed shaft hole 72 is provided above the rotation shaft hole 71, the fixing block 7 is provided with a mounting groove 74 accommodating the locking block 6, the locking block 6 is arranged in the mounting groove 74 penetrating the fixed shaft 2, the end of the fixed shaft 2 is arranged in the fixed shaft hole 72, the mounting groove 74 accommodates the locking block 6 and has a space required for its rotation action, and at the same time, the rotation angle of the locking block 6 is limited, and the mounting groove 74 is arranged on the second cylindrical boss 721.

Referring to fig. 10, in the pedal rotating structure in the embodiment of the utility model, a guiding and limiting groove 16 is provided on the inner wall of the rotating cylinder 101, a limiting boss 79 matching with the guiding and limiting groove 16 is provided on the fixed block 7, and the guiding and limiting groove 16 limits the rotating angle of the rotating rod 1 relative to the fixed block 7. The limit boss 79 may also prevent the wear sleeve 10 from rotating with other accessories.

Referring to fig. 11 and 12, in the pedal rotating structure in the embodiment of the present utility model, the fixing block 7 is provided with a handle mounting groove 78, a circular arc-shaped guide groove 73 is provided in the handle mounting groove 78, a guide projection 81 matching with the guide groove 73 is provided on the rotating handle 8, when the rotating handle 8 is mounted in the handle mounting groove 78, the guide projection 81 is provided in the guide groove 73, and the guide groove 73 defines the rotating range of the rotating handle 8, thereby defining the rotating angle of the rotating shaft 4.

Preferably, the movable pin 5, the fixed shaft 2 and the rotating shaft 4 are all made of stainless steel; the locking block 6 and the rotating rod 1 are made of aluminum alloy.

In the pedal rotating structure in the embodiment of the utility model, when in actual use, the rotating shaft 4 is manually driven to rotate 30 degrees clockwise through the rotating handle 8, the acting force of the spring 3 is applied to the movable pin 5, the head acting force of the movable pin 5 is applied to the locking block 6, and the locking block 6 rotates anticlockwise around the fixed shaft 2. When the second tooth 62 of the second end 64 of the locking block 6 fully engages the first tooth 102, rotation of the locking block 6 is terminated and the locking block 6 is rotated 20 counter-clockwise; at this time, the rotating rod 1 is rotated clockwise, the inner teeth of the rotating rod 1 press the locking block 6 to rotate clockwise, the movable pin 5 is forced to move toward the inside of the rotating shaft 4, and the spring 3 is compressed. The second tooth 62 of the second end 64 of the lock block 6 in turn collides with the first tooth 102 to produce a clicking sound. When the rotating rod 1 is rotated counterclockwise, the locking block 6 locks the counterclockwise rotation direction of the rotating rod 1 because the left side of the locking block 6 is completely abutted against the rotating shaft 4 and the rotating shaft 4 prevents the locking block 6 from rotating counterclockwise. At this time, the rotating lever 1 can be rotated clockwise to rotate the pedals 202 from the lower side to the upper side of the seat frame 205 until the comfortable rest height of the foot is reached.

When the rotary shaft 4 is driven to rotate 60 degrees by the rotary handle 8 in a manual anticlockwise manner, the locking block 6 is forced to rotate clockwise until the second tooth 62 at the first end 63 of the locking block 6 completely contacts the first tooth 102, at this time, the locking block 6 rotates 40 degrees clockwise, and the rotary rod 1 can rotate anticlockwise and is locked clockwise. At this time, the rotating rod 1 can be rotated counterclockwise, so as to drive the pedals 202 to retract to the bottom of the seat frame 205.

The pedal 202 may be directly and fixedly connected to the rotary rod 1, or may be an adjustable rotary connection, which is not limited.

In summary, according to the pedal rotating structure provided by the utility model, the pedal 202 and the seat frame 205 are connected through the rotating rod 1, the fixed shaft 2, the locking block 6, the rotating shaft 4 and the adjusting piece are arranged in the rotating cylinder 101 of the rotating rod 1, the meshed teeth are arranged at the end parts of the inner wall of the rotating cylinder 101 and the locking block 6, and the rotating shaft 4, the adjusting piece and the locking block 6 are matched to realize any angle rotation of the rotating rod 1 within a certain clockwise or anticlockwise angle range and retention force of the rotating rod at any angle after rotation; the position adjustment of the pedal 202 is realized; the rotating force is small, the structure is smooth, and the operation is simple and labor-saving; the whole structure is simple, the function is reliable, the material is environment-friendly, the manufacture is simple, the assembly and maintenance are convenient, and the utility model is durable.

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 pedal rotating structure is characterized by comprising a rotating rod, wherein one end of the rotating rod is connected with the other end of a seat frame, the other end of the rotating rod is connected with a pedal, a rotating cylinder is arranged at the end part of the rotating rod, a first tooth is circumferentially arranged on the inner wall of the rotating cylinder, a fixed shaft and a rotating shaft are arranged in the rotating cylinder, a locking block is arranged on the fixed shaft and can rotate on the fixed shaft, a second tooth is arranged on the locking block, and the second tooth can be meshed with the first tooth; the rotary shaft is provided with an adjusting piece, and the adjusting piece and the rotary shaft are in butt joint with the locking block, so that when the second tooth is meshed with the first tooth, the rotation of the locking block is limited, and then the rotation direction of the rotary rod is limited.

2. The pedal rotating structure according to claim 1, wherein the locking block is provided with a first end and a second end, both of which are provided with second teeth; the rotary shaft is positioned at the center of the rotary cylinder, the regulating piece is in abutting connection with the bottom of the second end, and when the second tooth of the second end is meshed with the first tooth, the rotary shaft blocks the locking block from rotating in the first direction, and the locking block blocks the rotary rod from rotating in the first direction; the adjusting piece is abutted with the bottom of the first end, when the second tooth of the first end is meshed with the first tooth, the rotating shaft stops the locking block from rotating towards the second direction, and the locking block stops the rotating rod from rotating towards the second direction.

3. The pedal rotating structure according to claim 1, wherein the regulating member includes a spring and a movable pin, the rotation shaft is connected to the movable pin through the spring, a pin hole is provided in an outer wall of the rotation shaft, the movable pin is provided with a spring hole, the spring is provided in the spring hole, the movable pin is provided in the pin hole, and one end of the spring is connected to a bottom of the pin hole, and the other end is connected to a bottom of the spring hole.

4. The pedal rotating structure according to claim 1, further comprising a fixed block provided at an end of the rotary cylinder, the fixed block being connected to the seat frame; the fixed shaft is connected to the fixed block; the rotating shaft penetrates through the fixed block and is connected with a rotating handle; the rotating shaft is driven to rotate through the rotating handle, and then the locking block is driven to rotate.

5. The pedal rotating structure according to claim 4, wherein a first cylindrical boss, a second cylindrical boss and a third cylindrical boss are coaxially arranged at one end of the fixed block in sequence, a second stepped hole and a third stepped hole are correspondingly arranged on the inner wall of the rotating cylinder, and the first tooth is arranged on the inner wall of the second stepped hole; the first cylindrical boss, the second cylindrical boss and the third cylindrical boss are sleeved with wear-resistant sleeves.

6. The pedal rotating structure according to claim 5, wherein the center of the fixed block is provided with a rotation shaft hole therethrough; the top in rotatory shaft hole is provided with fixed shaft hole, be provided with on the fixed block and hold the mounting groove of locking piece, the mounting groove is limited the rotation angle of locking piece, the mounting groove sets up on the second cylinder boss.

7. The pedal rotating structure according to claim 4, wherein the fixing block is provided with a handle mounting groove, a circular arc-shaped guide groove is provided in the handle mounting groove, a guide projection matched with the guide groove is provided on the rotating handle, the guide projection is provided in the guide groove when the rotating handle is mounted in the handle mounting groove, and the guide groove defines a rotating range of the rotating handle and further defines a rotating angle of the rotating shaft.

8. The pedal rotating structure according to claim 4, wherein the inner wall of the rotating cylinder is provided with a guiding limit groove, the fixed block is provided with a limit boss matched with the guiding limit groove, and the guiding limit groove limits the rotating angle of the rotating rod relative to the fixed block.

9. The pedal rotating structure according to claim 4, wherein the number of the fixing blocks is two, the fixing blocks are respectively arranged at two ends of the rotating cylinder, and a connecting block for connection is arranged between the two fixing blocks.

10. The pedal rotating structure according to claim 3, wherein the movable pin, the fixed shaft and the rotating shaft are all made of stainless steel; the locking block and the rotating rod are made of aluminum alloy.