CN211459497U

CN211459497U - Pedal ring height adjusting and locking mechanism

Info

Publication number: CN211459497U
Application number: CN201921699414.2U
Authority: CN
Inventors: 苏致诚
Original assignee: Dongguan Howen Plactic & Metal Products Co ltd
Current assignee: Dongguan Howen Plactic & Metal Products Co ltd; Dongguan Howen Plastic and Metal Products Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-09-11
Anticipated expiration: 2029-10-10

Abstract

The utility model provides a pedal ring altitude mixture control locking mechanism for install on the atmospheric pressure stick on the seat, its establish pedal ring on the atmospheric pressure stick and install the adjusting part between pedal ring and atmospheric pressure stick including the cover, adjusting part includes a plurality of fixed overcoat, a plurality of adjustment screw tooth piece and fixed endotheca, adjustment screw tooth piece dress is established on fixed endotheca, fixed overcoat spiro union is on the surface of adjustment screw tooth piece, fixed overcoat, adjustment screw tooth piece and fixed endotheca all are under the narrow wide toper tubulose setting, be equipped with a perforation on the fixed endotheca, the atmospheric pressure stick is worn to locate in the perforation to link to each other with adjusting part. By rotating the pedal ring forward or reversely, the adjusting component can be pressed or loosened on the air pressure rod, so that the position fixing and the position adjusting of the pedal ring are realized. The utility model discloses pedal ring altitude mixture control locking mechanism simple structure, convenient operation to the locking function is firm. The practicability is strong, and the popularization significance is strong.

Description

Pedal ring height adjusting and locking mechanism

Technical Field

The utility model relates to a pedal ring especially relates to a pedal ring altitude mixture control locking mechanism.

Background

In the life of modern people, the chair can not be used for rest, work or entertainment. With the increasing improvement of living standard of people, the requirement of people on the comfort level of the chair is higher, so that the chair with the pedal ring fixedly arranged below the chair body is available in the market, and when people sit on the chair, feet can be placed on the pedal ring, so that a more comfortable sitting posture is obtained; when the pedal ring is designed, the height of the pedal ring can be adjusted. However, the structure of the traditional pedal ring is complex, which leads to complex operation and insecure locking function.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a locking mechanism for adjusting the height of a pedal ring.

A pedal ring height adjusting and locking mechanism is used for being arranged on a pneumatic rod on a seat and comprises a pedal ring sleeved on the pneumatic rod and an adjusting assembly arranged between the pedal ring and the pneumatic rod, wherein the adjusting assembly comprises a plurality of fixing outer sleeves, a plurality of adjusting screw tooth blocks and a fixing inner sleeve, the adjusting screw tooth blocks are arranged on the fixing inner sleeve, the fixing outer sleeves are in screwed connection with the outer surfaces of the adjusting screw tooth blocks, the fixing outer sleeves, the adjusting screw tooth blocks and the fixing inner sleeve are all arranged in a tapered tubular shape with a narrow top and a wide bottom, a through hole and a vertically extending open slot are formed in the fixing inner sleeve, and the pneumatic rod is arranged in the through hole in a penetrating mode and is connected with the adjusting assembly; the pedal ring is rotated forwards or reversely, the pedal ring drives the fixing sleeve to rotate, the fixing sleeve can compress or release the adjusting screw tooth block, and then the adjusting assembly can compress or release on the air pressure rod.

Further, fixed endotheca includes installation department and spacing portion, installation department bottom integrated into one piece ground is connected in spacing portion upper end.

Furthermore, the bottom of the adjusting screw thread block is also provided with a connecting part, the bottom end of the connecting part is provided with a connecting block which transversely extends outwards, and the connecting block is detachably clamped on the fixed inner sleeve.

Furthermore, the mounting portion is provided with a plurality of mounting holes and connecting holes which penetrate through the mounting portion from inside to outside, the mounting holes are located above the connecting holes, a limiting rod is further arranged between the mounting holes and the connecting holes, the connecting blocks are clamped in the corresponding connecting holes, and the adjusting thread blocks are accommodated in the mounting holes.

Further, the adjusting component further comprises a plurality of rubber pads, a plurality of protrusions are arranged on the outer surfaces of the rubber pads, a plurality of mounting grooves are formed in the inner side faces of the adjusting screw tooth blocks, and the rubber pads are clamped in the corresponding mounting grooves.

Furthermore, an outer ring, an assembly inner sleeve and a plurality of connecting rods for connecting the outer ring and the assembly inner sleeve are arranged on the pedal ring.

Furthermore, the assembly inner sleeve is provided with a vertically-through positioning hole, the positioning hole is in a tapered tubular shape with a narrow top and a wide bottom, the adjusting component is arranged in the positioning hole, two ends of the fixed outer sleeve are respectively provided with a limiting protruding part, and the two limiting protruding parts are respectively limited on the outer side surfaces of two ends of the assembly inner sleeve.

Furthermore, a positioning groove which vertically extends upwards is further arranged on the inner wall of the positioning hole. The fixed outer sleeve is provided with a convex block, and the convex block is clamped in the positioning groove.

To sum up, the beneficial effects of the utility model reside in that: through setting up pedal ring and installing the adjusting part between pedal ring and pneumatic rod, adjusting part carries on spacingly to pedal ring, through forward or reverse rotation pedal ring, adjusting part can compress tightly or loosen on the pneumatic rod to realize fixed position and position adjustment, thereby the height of indirect adjustment pedal ring. The utility model discloses pedal ring altitude mixture control locking mechanism simple structure, convenient operation to the locking function is firm. The practicability is strong, and the popularization significance is strong.

Drawings

FIG. 1 is a schematic structural view of a height adjusting and locking mechanism of a pedal ring of the present invention;

FIG. 2 is a schematic view of the assembly of the locking mechanism for height adjustment of the foot ring and the pneumatic rod;

FIG. 3 is an exploded view of the height adjustment locking mechanism of the foot ring of FIG. 1;

FIG. 4 is a schematic view of the fastening sleeve of FIG. 3;

FIG. 5 is a schematic structural view of the rubber pad of FIG. 3;

FIG. 6 is a schematic structural view of the adjusting screw block of FIG. 3;

FIG. 7 is a schematic structural view of the fixed inner sleeve of FIG. 3;

fig. 8 is an assembly view of the rubber pad and the adjusting screw block of fig. 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 8, the present invention provides a locking mechanism for height adjustment of a pedal ring, which is used for being mounted on a pneumatic rod 30 of a seat, and comprises a pedal ring 10 sleeved on the pneumatic rod 30 and an adjusting assembly 20 mounted between the pedal ring 10 and the pneumatic rod 30; the adjusting assembly 20 limits the height of the pedal ring 10, and the adjusting assembly 20 can perform position adjustment on the air pressure rod 30, thereby indirectly adjusting the height of the pedal ring 10.

The pedal ring 10 is provided with an outer ring 11, an assembling inner sleeve 12 and a plurality of connecting rods 13 for connecting the outer ring 11 and the assembling inner sleeve 12, and the connecting rods 13 are uniformly arranged between the outer ring 11 and the assembling inner sleeve 12 at intervals around the assembling inner sleeve 12 and are arranged with the outer ring 11 and the assembling inner sleeve 12 in an integrated forming structure; the connecting rod 13 facilitates the forward rotation adjustment and the reverse rotation adjustment of the pedal ring 10. The assembling inner sleeve 12 is provided with a vertically penetrating positioning hole 121, the positioning hole 121 is in a tapered tubular shape with a narrow top and a wide bottom, the adjusting component 20 is installed in the positioning hole 121, and a positioning groove (not shown) extending vertically upwards is further arranged on the inner wall of the positioning hole 121.

The adjusting assembly 20 comprises a plurality of fixing outer sleeves 21, a plurality of rubber pads 22, a plurality of adjusting screw tooth blocks 23 and a fixing inner sleeve 24, wherein the rubber pads 22 are arranged on the inner sides of the adjusting screw tooth blocks 23, and a friction effect is achieved when the novel pedal ring 10 is tightly locked and fixed. The adjusting screw block 23 is mounted on the fixed inner sleeve 24, and the fixed outer sleeve 21 is mounted on the outer surface of the adjusting screw block 23. The inner wall surface of the fixed outer sleeve 21 is provided with internal threads. Be equipped with a lug 211 on fixed overcoat 21 and set up the spacing bulge 212 at fixed overcoat 21 both ends, fixed overcoat 21, adjustment screw tooth piece 23 and fixed endotheca 24 all are under the narrow wide toper tubulose setting, fixed overcoat 21 is worn to establish in locating hole 121, and two spacing bulges 212 are spacing respectively on the lateral surface of 12 both ends of equipment endotheca, lug 211 card is gone into in the constant head tank.

The outer surface of the rubber pad 22 is provided with a plurality of protrusions 221, the inner side surface of the adjusting screw block 23 is provided with a plurality of mounting grooves 231, and the rubber pad 22 is clamped into the corresponding mounting grooves 231 through the protrusions 221 and then is mounted on the adjusting screw block 23. The inner side surface of the rubber pad 22 is also provided with grains 222, and the grains 222 can be stripes, also can be lattice grains or other grains; the texture 222 helps to friction with the pneumatic rod, so that the holding force with the pneumatic rod is more stable. The outer surface of the adjusting screw thread block 23 is provided with an external thread, and the fixing outer sleeve 21 is screwed on the outer surface of the adjusting screw thread block 23. The bottom of the adjusting screw block 23 is further provided with a connecting portion 232, and the bottom end of the connecting portion 232 is provided with a connecting block 234 extending transversely outward.

The fixed inner sleeve 24 is provided with a through hole 241 which vertically penetrates through and an open slot 244 which vertically extends, and the open slot 244 is beneficial to slight inward contraction of the open slot 244 when the fixed outer sleeve 21 is stressed on the fixed inner sleeve 24, so that the holding force of the rubber pad 22 and the air pressure bar is more stable; the air pressure rod 30 is inserted into the through hole 241 and is connected to the adjusting assembly 20. The fixing inner sleeve 24 includes a mounting portion 242 and a limiting portion 243, and the limiting portion 243 can limit the fixing outer sleeve 21. The bottom end of the mounting portion 242 is integrally connected to the upper end of the limiting portion 243, the mounting portion 242 is provided with a plurality of mounting holes 245 and connecting holes 246, the mounting holes are arranged above the connecting holes 246, the connecting blocks 234 are clamped in the corresponding connecting holes 246, the periphery of the connecting holes 246 prevents the adjusting screw threads 23 from turning over outwards, and the adjusting screw threads 23 are accommodated in the mounting holes 245. A limiting rod 247 is further arranged between the mounting hole 245 and the connecting hole 246, and the limiting rod 247 can position the adjusting screw block 23 to prevent the adjusting screw from falling inward quickly.

During assembly, the rubber pad 22 is first installed on the inner side surface of the adjusting screw block 23, the adjusting screw block 23 is then installed on the fixed inner sleeve 24, and the fixed outer sleeve 21 is then screwed on the adjusting screw block 23. The pedal ring 10 is mounted on the assembled adjusting assembly 20, and finally the air pressure rod 30 is inserted into the through hole 241 so as to be connected with the adjusting assembly 20.

After the position adjustment is completed, the pedal ring 10 is rotated in the forward direction, the pedal ring 10 drives the fixing outer sleeve 21 to perform inward compression movement, the fixing outer sleeve 21 is directly stressed on the adjusting screw tooth block 23, the screw tooth block 23 takes the limiting rod 247 as a fulcrum, the upper end part of the screw tooth block 23 is folded in the mounting hole 245, so that the screw tooth block 23 transmits force to the rubber pad 22, and the rubber pad 22 transmits force to the air pressure bar 30 after being stressed, so that the locking function is realized. When the height of the pedal ring 10 needs to be adjusted, the pedal ring 10 is rotated reversely, the pedal ring 10 is no longer stressed on the adjusting screw block 23, at this time, the holding force between the air pressure rod 30 and the rubber pad 22 is lost, the screw block 23 takes the limiting rod 247 as a fulcrum, the upper end part of the screw block 23 pops out of the mounting hole 245, and the pedal ring height adjusting and locking mechanism can be quickly separated from the air pressure rod 30. So that the height adjustment of the footrest ring 10 is possible. And because the contact position between the adjusting screw tooth block 23 and the fixed inner sleeve 24 is in interference fit, when the adjusting screw tooth block 23 is loosened and retreated, and the adjusting screw tooth block 23 is not held tightly by the fixed outer sleeve 21, the adjusting screw tooth block 23 is opened by the interference fit, so that the adjusting screw tooth block is more easily separated from the air pressure rod 30 when the pedal ring 10 is loosened and rotated.

The pedal ring 10 is adjusted in the forward direction, the pedal ring 10 drives the fixed outer sleeve 21 to rotate in the forward direction, the fixed outer sleeve 21 and the adjusting screw tooth block 23 are in threaded connection with each other, and as the fixed outer sleeve 21 and the fixed inner sleeve 24 are both arranged in a conical shape, the fixed outer sleeve 21 is screwed more tightly along with the rotation of the pedal ring 10, and the fixed outer sleeve 21 extrudes the adjusting screw tooth block 23 to be gradually tightened and fastened on the air pressure rod 30. When the position is adjusted, the pedal ring 10 is rotated in the reverse direction, so that the adjusting screw block 23 and the fixing housing 21 are expanded, and the position is adjusted by vertically adjusting the pedal ring 10.

To sum up, the beneficial effects of the utility model reside in that: the adjusting assembly 20 limits the pedal ring 10 by arranging the pedal ring 10 and the adjusting assembly 20 arranged between the pedal ring 10 and the air pressure bar 30, and the adjusting assembly 20 can be pressed or loosened on the air pressure bar 30 by rotating the pedal ring 10 forwards or reversely, so that the position fixing and the position adjusting of the seat height are realized, and the height of the pedal ring 10 is indirectly adjusted. The utility model discloses pedal ring 10 locking device simple structure, convenient operation to the locking function is firm. The practicability is strong, and the popularization significance is strong.

The above-described embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, and these are within the scope of the invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. The utility model provides a pedal ring altitude mixture control locking mechanism for install on the pneumatic rod on the seat, its characterized in that: the height adjusting and locking mechanism of the pedal ring comprises a pedal ring sleeved on the air pressure rod and an adjusting assembly arranged between the pedal ring and the air pressure rod, the adjusting assembly comprises a plurality of fixed outer sleeves, a plurality of adjusting screw tooth blocks and fixed inner sleeves, the adjusting screw tooth blocks are arranged on the fixed inner sleeves, the fixed outer sleeves are screwed on the outer surfaces of the adjusting screw tooth blocks, the fixed outer sleeves, the fixed inner sleeves and the adjusting screw tooth blocks are all arranged in a tapered tube shape with a narrow top and a wide bottom, a through hole and a vertically extending open slot are arranged on the fixed inner sleeves, and the air pressure rod is arranged in the through hole in a penetrating manner so as to be connected with the adjusting assembly; the pedal ring is rotated forwards or reversely, the pedal ring drives the fixing sleeve to rotate, the fixing sleeve can compress or release the adjusting screw tooth block, and then the adjusting assembly can compress or release on the air pressure rod.

2. The step ring height adjustment locking mechanism of claim 1, wherein: the fixed inner sleeve comprises an installation part and a limiting part, and the bottom end of the installation part is integrally connected to the upper end of the limiting part.

3. The pedal ring height adjustment locking mechanism of claim 2, wherein: the bottom of the adjusting screw tooth block is also provided with a connecting part, the bottom end of the connecting part is provided with a connecting block which transversely extends outwards, and the connecting block is detachably clamped on the fixed inner sleeve.

4. The step ring height adjustment locking mechanism of claim 3, wherein: the mounting portion is provided with a plurality of mounting holes and connecting holes which penetrate through the mounting portion from inside to outside, the mounting holes are located above the connecting holes, a limiting rod is further arranged between the mounting holes and the connecting holes, the connecting blocks are clamped in the corresponding connecting holes, and the adjusting screw tooth blocks are accommodated in the mounting holes.

5. The step ring height adjustment locking mechanism of claim 1, wherein: the adjusting assembly further comprises a plurality of rubber pads, a plurality of protrusions are arranged on the outer surfaces of the rubber pads, a plurality of mounting grooves are formed in the inner side faces of the adjusting screw tooth blocks, and the rubber pads are clamped in the corresponding mounting grooves.

6. The step ring height adjustment locking mechanism of claim 1, wherein: the pedal ring is provided with an outer ring, an assembly inner sleeve and a plurality of connecting rods for connecting the outer ring and the assembly inner sleeve.

7. The step ring height adjustment locking mechanism of claim 6, wherein: the assembly inner sleeve is provided with a vertical through positioning hole, the positioning hole is in a tapered tubular arrangement with a narrow top and a wide bottom, the adjusting assembly is arranged in the positioning hole, two ends of the fixed outer sleeve are respectively provided with a limiting protruding part, and the two limiting protruding parts are respectively limited on the outer side surfaces of two ends of the assembly inner sleeve.

8. The step ring height adjustment locking mechanism of claim 7, wherein: still be equipped with the constant head tank of vertical upwards extension on the locating hole inner wall, be equipped with a lug on the fixed overcoat, the lug card is gone into in the constant head tank.