CN113925312A - Height adjusting structure - Google Patents

Abstract

The invention provides a height adjusting structure, which is used for matching furniture or office furniture such as chair armrests and comprises a fixed seat, an outer sleeve and a pull rod; when a driving part of the pull rod is driven to synchronously drive a clamping block on the pull rod to adjust and move, the clamping block can be separated from one clamping groove on the fixed seat to form an unlocking state, the fixed seat is kept still at the moment, and the outer sleeve can be adjusted and moved up and down relative to the fixed seat; the movement of the up-and-down adjustment movement of the outer sleeve comprises a highest point and a lowest point, and the fixed position of the fixed seat or the fixed seat is between the highest point and the lowest point of the movement of the outer sleeve, so that the outer sleeve can generate a proper shielding effect on the fixed seat to improve the fashion aesthetic feeling and the value feeling of the furniture.

Description

Height adjusting structure

Technical Field

The present invention relates to a height adjustment structure, and more particularly to a height adjustment structure that can be used with furniture or office furniture such as chair armrests and can generate a proper shielding effect to enhance the fashionable aesthetic feeling and the value of the furniture.

Background

Referring to fig. 25, a height adjustment structure 1a for furniture or office furniture is provided in the prior art, which is illustrated by way of example and not limitation as a chair armrest, and generally comprises a sliding seat 10a, an outer sleeve 20a and a fixing member 30a, wherein the sliding seat 10a is fixed to the fixing member 30a, the outer sleeve 20 is slidably sleeved on the sliding seat 10a, and the fixing member 30a is mounted on the left or right side of a seat 4b of a chair 4 (i.e. furniture or office furniture in this case); when the height of the outer sleeve 20a is to be adjusted (i.e. the height of the chair armrest 2), the sliding base 10a and the fixing member 30a are kept stationary, and the outer sleeve 20a can be adjusted and moved up and down relative to the sliding base 10a and the fixing member 30a, so that the chair armrest or the table board mounted on the outer sleeve 20a can be adjusted and moved up and down together.

However, when viewed from the left and right sides of the chair 4 (i.e. the furniture or office furniture in this case), the appearance of the height adjusting structure 1a is obviously two-part structure with an outer sleeve 20a and a fixing member 30a, and the fixing member 30a is exposed and visible, which relatively affects or detracts from the fashion aesthetic and value of the furniture (e.g. the chair 4) and even affects the purchase desire of the consumer.

Disclosure of Invention

The main objective of the present invention is to provide a height adjusting structure for use with furniture or office furniture such as chair armrest, wherein when a user drives a driving portion to synchronously drive a locking block on a pull rod to move, an outer sleeve can move up and down relative to a fixed seat; when the outer sleeve vertically aligns and moves relative to the fixed seat, the vertical adjustment movement of the outer sleeve comprises a highest point and a lowest point, and the fixed position of the fixed seat or the fixed seat is between the height ranges of the highest point and the lowest point of the vertical adjustment movement of the outer sleeve, so that the outer sleeve can generate a proper shielding effect on the fixed position of the fixed seat or the fixed seat, and the fashionable aesthetic feeling and the value feeling of the furniture are relatively improved.

In order to achieve the above object, the height adjusting structure of the present invention comprises a fixing base, an outer sleeve and a pull rod; the fixing seat is provided with a clamping groove part, a rail groove part and a fixing part, the clamping groove part is provided with a plurality of clamping grooves which are arranged at intervals from top to bottom and are communicated, and the fixing part is used for being installed and fixed at a fixed position on one side edge of furniture or office furniture; the outer sleeve is connected to the outside of the fixed seat and can slide up and down along the rail groove part, the outer sleeve is provided with a bearing seat, an operation window and a sliding seat, the bearing seat is positioned at the top end of the outer sleeve, the operation window is positioned on one side edge of the outer sleeve and communicated with the inside of the outer sleeve, and the sliding seat is positioned inside the outer sleeve; the pull rod is accommodated in the sliding seat of the outer sleeve in a manner of sliding up and down, and is provided with a driving part, an elastic element seat and a clamping block, wherein the driving part extends from the top end of the pull rod and protrudes out of the operation window of the outer sleeve for a user to operate, and an elastic element is arranged in the elastic element seat; wherein the pull rod can make the clamping block clamped into one of the clamping grooves on the fixed seat by means of the elastic action of the elastic element, so that the bearing seat of the outer sleeve can be positioned at a height position corresponding to the clamping groove; when a user drives the driving part to synchronously drive the clamping block on the pull rod to adjust and move, the clamping block can be separated from one clamping groove in the clamping groove part on the fixed seat to form an unlocking state, at the moment, the fixed seat is kept still, and the outer sleeve and the pull rod can be adjusted and moved up and down relative to the fixed seat; after the outer sleeve and the pull rod are adjusted and moved up and down, a user releases the driving part, and at the moment, the clamping block can be clamped into the other clamping groove in the clamping groove parts on the fixing seat by virtue of the restoring force of the elastic piece and restores to a locking state; when the outer sleeve is adjusted and moved up and down relative to the fixed seat, the stroke of the up-and-down adjustment and movement of the outer sleeve comprises a highest point and a lowest point, and at the moment, the fixed seat or the fixed position of the fixed seat is located in the height range of the highest point and the lowest point of the stroke of the outer sleeve.

In a preferred embodiment of the present invention, two opposite sides of the lower end of the pull rod are respectively provided with an inclined guide slot corresponding to each other, and the inclined guide slots extend obliquely downwards towards the outer side; the left side and the right side of the clamping block are respectively provided with a sliding wing in a protruding way, the two sliding wings are respectively limited in the two inclined guide grooves of the pull rod and can move relatively along the inclined guide grooves, so that the vertical displacement of the pull rod can be converted into the transverse displacement of the clamping block.

In a preferred embodiment of the present invention, the pull rod is further provided with a gasket for covering the elastic seat and being disposed between the sliding seat and the clamping groove portion, the gasket has a guide hole for the engaging block to penetrate through, and when the vertical displacement of the pull rod is converted into the lateral displacement of the engaging block, the guide hole can limit the engaging block in the guide hole for lateral displacement.

In a preferred embodiment of the present invention, the elastic member is further a spring; wherein the sliding seat is provided with an upper spring mounting part; wherein the elastic piece seat is further provided with a lower spring mounting part corresponding to the upper spring mounting part; wherein the elastic element is arranged between the upper spring mounting part and the lower spring mounting part.

In a preferred embodiment of the present invention, the outer sleeve further comprises a covering member disposed on one side of the outer sleeve for covering the pull rod, the covering member is formed by integrally fastening a first covering plate and a second covering plate, the first covering plate is disposed on the pull rod and has a first long slot with a downward notch, the second covering plate is disposed on the first covering plate and has a second long slot with a downward notch, and the first long slot corresponds to the second long slot; wherein the first long notch and the second long notch of the covering member can be connected to the rail groove portion to slide up and down.

In a preferred embodiment of the present invention, the driving part is located at the top of the pull rod; wherein the interior of the top portion of the outer sleeve further comprises a sliding space adjacent to the operating window; when the user drives the driving part to synchronously drive the clamping block on the pull rod to adjust and move, the driving part can move into the sliding space.

In a preferred embodiment of the present invention, a plurality of anti-sway members are disposed on the outer edge of the fixing base for abutting against the fixing base and the sliding base.

In a preferred embodiment of the present invention, the driving portion of the pull rod is detachably disposed on the pull rod.

In a preferred embodiment of the present invention, the fixing portion of the fixing base is a long and narrow fixture block; wherein the furniture or office furniture is a chair, the chair is provided with a chair back and a chair seat; wherein the height adjusting structure is further combined on the side edge of the backrest of the chair by means of the fixing part inclining at an angle.

In a preferred embodiment of the present invention, the supporting seat of the outer sleeve is combined with a handrail or a table.

Compared with the prior art, the invention can lead the outer sleeve to generate proper shielding effect on the fixed seat so as to improve the fashion aesthetic feeling and the value feeling of the furniture.

Drawings

Fig. 1 is an assembled perspective view of an embodiment of the present invention.

Fig. 2 is a side plan view of fig. 1.

Fig. 3 is a schematic view of the present invention applied to a chair and combined with armrests and a table.

Fig. 4 is a side plan view of the chair of the present invention.

Fig. 5 is a schematic side plan view of the outer sleeve of fig. 4 after upward adjustment.

FIG. 6 is an exploded perspective view of a viewing angle of the present invention.

Fig. 7 is an exploded perspective view of another aspect of the present invention.

Fig. 8 is a perspective view of the tie rod of the present invention.

FIG. 9 is an exploded perspective view of the pull rod of the present invention coupled to the outer sleeve from a perspective.

Fig. 10 is an assembled perspective view of fig. 9.

Fig. 11 is a side cross-sectional schematic view of fig. 10.

Fig. 12 is a partially enlarged exploded perspective view of the spacer of the present invention assembled to a drawbar.

Fig. 13 is an assembled perspective view of fig. 12.

Fig. 14 is an exploded perspective view of a viewing angle of the fixing base combined with the covering member according to the present invention.

Fig. 15 is an exploded perspective view of an angle of view of the fixing base and the covering member combined with the outer sleeve according to the present invention.

Fig. 16 is a perspective view of the fixing base and the covering member of the present invention combined with the outer sleeve.

FIG. 17 is a schematic plan view of the present invention tilted at an angle.

Fig. 18 is a schematic cross-sectional view of fig. 17.

Fig. 19 is a partial side plan view of fig. 10.

Figure 20 is a schematic view of the outer sleeve of figure 17 slid upwardly.

Fig. 21 is a schematic cross-sectional view of fig. 20.

Fig. 22 is a schematic view showing the lever of fig. 19 driven.

Figure 23 is a side plan view of the outer sleeve of the present invention moved to its lowest point in its travel.

FIG. 24 is a side plan view of the outer sleeve of the present invention moved to its highest point in its travel.

FIG. 25 is a perspective view of an embodiment of the prior art.

Description of reference numerals: a-a fixed position; h-peak; l-lowest point; 1-a height adjustment structure; 10-a fixed seat; 11-a slot portion; 111-card slot; 12-a raceway portion; 13-a fixed part; 14-a slosh stop; 20-an outer sleeve; 21-a bearing seat; 22-an operating window; 23-a slide; 231-an upper spring mount; 24-a cover; 241-a first shutter; 2411-a first long notch; 242-a second shutter; 2421-a second long notch; 25-a sliding space; 30-a pull rod; 31-a drive section; 32-a spring seat; 321-a lower spring mounting portion; 33-a gasket; 331-guide holes; 34-a catch block; 341-a sliding wing; 35-an elastic member; 36-oblique sliding holes; 1 a-a height adjustment structure; 10 a-a slide; 20 a-an outer sleeve; 30 a-a fixture; 2-a handrail; 3-a table board; 4-a chair; 4 a-chair back; 4 b-seat.

Detailed Description

The present invention is described in detail with reference to the drawings, wherein the drawings are only for illustrating the structural relationship and the related functions of the present invention, and the sizes of the elements in the drawings are not to be drawn to scale and are not to be construed as limiting the present invention.

The height adjustment structure of the present invention is suitable for use in furniture or office furniture (e.g., a chair), and therefore the "left and right" directions mentioned in the following disclosure are directions of the seat occupant. As shown in fig. 3 to 5, the piece of furniture or office furniture is illustrated here, without limitation, as an office chair 4, the chair 4 having a back 4a and a seat 4 b.

The height adjusting structure 1 of the present embodiment is used in combination with the backrest 4a of the chair 4, as shown in fig. 3 to 5, when a user sits on the seat 4b of the chair 4, the height adjusting structure 1 on the left and right sides can be easily operated for height adjustment, and the height adjusting structure 1 includes a fixing base 10, an outer sleeve 20 and a pull rod 30.

The fixing base 10 has a slot portion 11, a groove portion 12 and a fixing portion 13 as shown in fig. 6 and 7, the slot portion 11 has a plurality of slots 111 arranged at intervals up and down and connected with each other as shown in fig. 14 and 16, in this embodiment, the fixing portion 13 is a long and narrow (but not limited to) block for being inserted into and fixed at a fixing position a on one side of the backrest 4a of the chair 4 as shown in fig. 4 and 5. In the present embodiment, the fixing portion 13 is completely embedded and hidden in the fixing position a without being exposed, but not limited thereto.

The height adjustment structure 1 is further combined to the side of the backrest 4a of the chair 4 at an angle inclined by the fixing portion 13 as shown in fig. 3 to 5, so as to be able to exhibit the aesthetic and valuable fashionability of the chair 4 by matching with the curve of the backrest 4 a.

The outer sleeve 20 is connected to the outside of the fixing seat 10 and can slide up and down along the rail groove 12 as shown by arrow a in fig. 1 and arrow B in fig. 2, the outer sleeve 20 has a support seat 21, an operation window 22, a sliding seat 23, a shielding plate 24 and a sliding space 25 but not limited as shown in fig. 6 and 7, the support seat 21 is located at the top end of the outer sleeve 20 for combining with a handrail 2 or a table 3 but not limited as shown in fig. 1 to 3, the operation window 22 is located on one side of the outer sleeve 20 and communicates with the inside of the outer sleeve 20 as shown in fig. 6, 7 and 9 to 11, the sliding seat 23 is located inside the outer sleeve 20 and the sliding seat 23 is provided with an upper spring mounting portion 231 but not limited as shown in fig. 9 to 11, the shielding member 24 is located on one side of the outer sleeve 20 for shielding the pull rod 30 but not limited as shown in fig. 6, 9 and 11, 7 and 15, the sliding space 25 is located inside the top of the outer sleeve 20 and adjacent to the operating window 22, but not limited thereto, as shown in fig. 9 to 11.

The covering member 24 is formed by integrally fastening a first covering plate 241 and a second covering plate 242, but not limited thereto, the first covering plate 241 is locked on the sliding base 23 by screws and covers the pull rod 30, so that the related structure of the pull rod 30 is not exposed, the first covering plate 241 is provided with a first long notch 2411 with a downward notch, the second covering plate 242 is fastened and covers the first covering plate 241 by hooks and can shield the screws on the first covering plate 241 and the related structure on the sliding base 23 to keep the simplicity and beauty, and the second covering plate 242 is provided with a second long notch 2421 with a downward notch; the first slot 2411 corresponds to the second slot 2421, and the first slot 2411 and the second slot 2421 can be connected to the rail groove 12 (as shown in fig. 6, 7, and 14 to 16) for sliding up and down.

In addition, a plurality of anti-sloshing members 14 are disposed on the outer edge of the fixed seat 10 for abutting between the fixed seat 10 and the sliding seat 23, but not limited to fig. 6, 7 and 15, for keeping the outer sleeve 20 smooth (similar to damping effect) during sliding up and down.

The pull rod 30 is slidably received in the sliding seat 23 of the outer sleeve 20 in the up-down direction as shown in fig. 10 to 13, the pull rod 30 has a driving portion 31, an elastic member seat 32, a spacer 33, a locking block 34, an elastic member 35 and an inclined guide slot 36, but not limited to, as shown in fig. 6 to 8, the driving portion 31 extends from the top end of the pull rod 30 and protrudes outside the operation window 22 of the outer sleeve 20 for user operation as shown in fig. 10, 11, 19 and 22, and the driving portion 31 is detachably disposed on the pull rod 30 as shown in fig. 9 for easy installation and fast production, a lower spring mounting portion 321 is further disposed in the elastic member seat 32 corresponding to the upper spring mounting portion 231, but not limited to, as shown in fig. 6, 9 to 11, the spacer 33 is provided for covering the elastic member seat 32 and is disposed between the sliding seat 23 and the locking slot portion 11, but not limited to, as shown in fig. 18 and 21, a sliding wing 341 is formed on each of the left and right sides of the locking block 34, but not limited to, as shown in fig. 6, 7 and 9, the elastic member 35 is further a spring, but not limited to, the inclined guide grooves 36 are formed on two opposite sides of the lower end of the pull rod 30, and correspond to each other, and the inclined guide grooves 36 extend obliquely downward toward the outside, as shown in fig. 7, 8 and 17; as shown in fig. 18, 19, and 21 to 24, the pull rod 30 utilizes the elastic force of the elastic element 35 to make the locking block 34 be locked into one of the locking slots 111 of the locking slot 11 of the fixing base 10, so that the bearing seat 21 of the outer sleeve 20 is positioned at a height position corresponding to the locking slot 111.

Referring to fig. 10, 11 and 22, when the user drives the driving portion 31 (as shown by arrow E in fig. 20, arrow H in fig. 21 and arrow I in fig. 22) to synchronously drive the detent block 34 on the pull rod 30 to move (as shown by arrow F in fig. 21), the driving portion 31 moves into the sliding space 25 as shown in fig. 22.

Referring to fig. 17, 18, 20 and 21, the two sliding wings 341 are respectively retained in the two inclined guiding slots 36 of the pull rod 30 and can relatively move along each inclined guiding slot 36 (as shown by arrow C in fig. 20), so that the vertical displacement of the pull rod 30 can be converted into the lateral displacement of the locking block 34 as shown by arrow F in fig. 21.

The spacer 33 has a guide hole 331 for the engaging block 34 to pass through but not limited to, when the vertical displacement of the pull rod 30 (as shown by arrow E in fig. 20 and arrow H in fig. 21) is converted into the lateral displacement of the engaging block 34 (as shown by arrow F in fig. 21), the guide hole 331 can limit the engaging block 34 in the guide hole 331 for lateral displacement as shown in fig. 21, so that the engaging block 34 can stably and accurately enter each engaging slot 111.

Referring to fig. 10 and 11, the elastic member 35 is disposed between the upper spring mounting portion 231 and the lower spring mounting portion 321.

When the user drives the driving portion 31 (as shown in the direction of arrow E in fig. 20, the direction of arrow H in fig. 21, and the direction of arrow I in fig. 22) to synchronously drive the locking block 34 on the pull rod 30 to move in an adjusting manner (as shown in the direction of arrow F in fig. 21), the locking block 34 will disengage from one of the locking slots 111 in the locking slot 11 on the fixing base 10 to form an unlocked state as shown in fig. 20 to 22, and at this time, the fixing base 10 remains stationary, and the outer sleeve 20 and the pull rod 30 can move in an up-and-down adjusting manner relative to the fixing base 10 as shown in the direction of arrow D in fig. 20 and the direction of arrow G in fig. 21.

After the outer sleeve 20 and the pull rod 30 are adjusted and moved up and down, the user releases the driving portion 31, and at this time, the locking block 34 can be locked into the other locking slot 111 of the locking slot portion 11 of the fixing base 10 by the restoring force of the elastic member 35 and restore to the locking state as shown in fig. 18 and 19.

Referring to fig. 4, 5, 23 and 24, when the outer sleeve 20 performs the vertical adjustment movement relative to the fixing base 10, as shown by the direction of arrow K in fig. 5 and the direction of arrow J in fig. 24, the vertical adjustment movement of the outer sleeve 20 includes a highest point H (shown in fig. 24) and a lowest point L (shown in fig. 23), and at this time, the fixing base 10 or the fixing position a (shown in fig. 4 and 5) is located in the height range of the highest point H and the lowest point L of the movement of the outer sleeve 20, as shown in fig. 23 and 24.

Compared with the prior art, the invention has the following advantages:

(1) when the outer sleeve 20 of the present invention is adjusted and moved up and down relative to the fixing base 10 (as shown by arrow J in fig. 24), the fixing base 10 or the fixing position a (as shown in fig. 4 and 5) is located in the height range of the highest point H and the lowest point L of the movement of the outer sleeve 20 as shown in fig. 23 and 24, and when viewed from the left and right sides of the chair 4, the fixing base 10 of the height adjusting structure 1 is not exposed outward, so that the outer sleeve can generate a proper shielding effect on the fixing base, so as to enhance the fashion aesthetic feeling and the value feeling of the furniture, and to facilitate the market competitiveness of the furniture.

(2) The height adjustment structure 1 of the present invention can be fixed on the chair 4 by a one-piece structure (the fixing base 10) to perform the up-and-down movement adjustment without relying on a two-piece structure of a sliding base 10a and a fixing member 30a (as shown in fig. 25) as in the prior art, which is advantageous for the cost saving of the manufacturing end.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A height adjustment structure for use in conjunction with or mounted on a side of furniture or office furniture, the height adjustment structure comprising:

the fixing seat is provided with a clamping groove part, a rail groove part and a fixing part, the clamping groove part is provided with a plurality of clamping grooves which are arranged at intervals from top to bottom and are communicated, and the fixing part is used for being installed and fixed at a fixed position on the side edge of furniture or office furniture;

an outer sleeve which is connected to the outside of the fixed seat and can slide up and down along the rail groove part, the outer sleeve is provided with a bearing seat, an operation window and a sliding seat, the bearing seat is positioned at the top end of the outer sleeve, the operation window is positioned on one side edge of the outer sleeve and is communicated with the inside of the outer sleeve, and the sliding seat is positioned in the outer sleeve; and

a pull rod which can be accommodated in the sliding seat of the outer sleeve in a vertically sliding manner, wherein the pull rod is provided with a driving part, an elastic element seat and a clamping block, the driving part extends from the top end of the pull rod and protrudes out of the operation window of the outer sleeve for a user to operate, and an elastic element is arranged in the elastic element seat; the pull rod can enable the clamping block to be clamped into one clamping groove in the clamping groove part on the fixed seat by means of the elastic action of the elastic piece, so that the bearing seat of the outer sleeve can be positioned at a height position corresponding to the clamping groove;

when a user drives the driving part to synchronously drive the clamping block on the pull rod to adjust and move, the clamping block can be separated from one clamping groove in the clamping groove part on the fixed seat to form an unlocking state, at the moment, the fixed seat is kept still, and the outer sleeve and the pull rod can be adjusted and moved up and down relative to the fixed seat;

after the outer sleeve and the pull rod are adjusted and moved up and down, a user releases the driving part, and at the moment, the clamping block can be clamped into the other clamping groove in the clamping groove parts on the fixing seat by virtue of the restoring force of the elastic piece and restores to a locking state;

when the outer sleeve is adjusted and moved up and down relative to the fixed seat, the stroke of the up-and-down adjustment and movement of the outer sleeve comprises a highest point and a lowest point, and the fixed seat or the fixed position is located in the height range of the highest point and the lowest point of the stroke of the outer sleeve.

2. The height adjusting structure according to claim 1, wherein: two opposite sides of the lower end of the pull rod are respectively provided with an inclined guide groove which corresponds to each other and extends obliquely downwards towards the outer side; the left side and the right side of the clamping block are respectively provided with a sliding wing in a protruding way, the two sliding wings are respectively limited in the two inclined guide grooves of the pull rod and can move relatively along the inclined guide grooves, so that the vertical displacement of the pull rod can be converted into the transverse displacement of the clamping block.

3. The height adjusting structure according to claim 2, wherein: the pull rod is also provided with a gasket for covering the elastic element seat and between the sliding seat and the clamping groove part, the gasket is provided with a guide hole for the clamping block to penetrate through, and when the vertical displacement of the pull rod is converted into the transverse displacement of the clamping block, the guide hole can limit the clamping block in the guide hole for transverse displacement.

4. The height adjusting structure according to claim 1, wherein: the elastic piece is a spring; wherein the sliding seat is provided with an upper spring mounting part; wherein the elastic element seat is provided with a lower spring mounting part corresponding to the upper spring mounting part; wherein the elastic element is arranged between the upper spring mounting part and the lower spring mounting part.

5. The height adjusting structure according to claim 1, wherein: the outer sleeve also comprises a covering piece which is arranged on one side edge of the outer sleeve and used for covering the pull rod, the covering piece is formed by clamping and fixing a first shielding plate and a second shielding plate into a whole, the first shielding plate is arranged on the pull rod in a covering mode and provided with a first long notch with a downward notch, the second shielding plate is arranged on the first shielding plate in a covering mode and provided with a second long notch with a downward notch, and the first long notch corresponds to the second long notch; wherein the first long notch and the second long notch of the covering member can be connected to the rail groove portion to slide up and down.

6. The height adjusting structure according to claim 1, wherein: the driving part is positioned at the top of the pull rod; wherein the interior of the top portion of the outer sleeve includes a sliding space adjacent to the operating window; when the user drives the driving part to synchronously drive the clamping block on the pull rod to adjust and move, the driving part can move into the sliding space.

7. The height adjusting structure according to claim 1, wherein: the outer edge of the fixed seat is provided with a plurality of shaking stopping pieces for abutting between the fixed seat and the sliding seat.

8. The height adjusting structure according to claim 1, wherein: the driving part of the pull rod can be detachably arranged on the pull rod.

9. The height adjusting structure according to claim 1, wherein: the fixing part of the fixing seat is a long and narrow fixture block; wherein the furniture or office furniture is a chair, the chair is provided with a chair back and a chair seat; wherein the height adjusting structure is combined on the side edge of the chair back of the chair by means of the fixing part inclining at an angle.

10. The height adjusting structure according to claim 1, wherein: the bearing seat of the outer sleeve is combined with a handrail or a table board.

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