CN219578610U - Seat height adjusting mechanism and seat - Google Patents

Abstract

The utility model discloses a seat height adjusting mechanism and a seat; the seat height adjusting mechanism comprises a hoop shell, a bayonet lock and a knob, wherein the hoop shell is matched with a supporting rod of a seat; wherein, a plurality of clamping holes are arranged on the supporting rod of the seat; the bayonet lock is installed in the anchor ear shell; the knob is arranged on the outer side of the hoop shell; the knob rotates to drive the bayonet lock to stretch out and draw back, so that the bayonet lock is inserted into or separated from a bayonet lock hole on a supporting rod of the seat. The seat height adjusting mechanism is convenient to use, saves labor and is reliable in adjusting and positioning the seat height, and the adjusting hand feeling is smooth.

Description

Seat height adjusting mechanism and seat

Technical Field

The utility model relates to the technical field of seats, in particular to a seat height adjusting mechanism and a seat with the same.

Background

The study seat is used as a seat for accompanying children to study, and plays a very important role in the process of children growth study. In various children study chairs, the height of the chair back or the chair seat can be adjusted according to the actual height of the children, so that the chair is convenient to use, and the chair is more and more widely applied.

Most of the height adjusting mechanisms of the children learning chairs in the prior art are laborious to adjust, difficult to position and inconvenient to use.

Disclosure of Invention

In order to solve the above technical problems, an object of the present utility model is to provide a seat height adjusting mechanism and a seat. The seat height adjusting mechanism is convenient to use, saves labor and is reliable in adjusting and positioning the seat height, and the adjusting hand feeling is smooth.

In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme:

a seat height adjusting mechanism comprises a hoop shell, a bayonet lock and a knob, wherein the hoop shell is matched with a supporting rod of a seat; wherein, a plurality of clamping holes are arranged on the supporting rod of the seat; the bayonet lock is installed in the anchor ear shell; the knob is arranged on the outer side of the hoop shell; the knob rotates to drive the bayonet lock to stretch out and draw back, so that the bayonet lock is inserted into or separated from a bayonet lock hole on a supporting rod of the seat.

Further, the knob drives the bayonet lock to stretch out and draw back through the rotatory climbing structure.

Further, the rotary climbing structure comprises a rotary chuck and a sliding ramp arranged on the hoop shell; the rotary chuck is connected to the end part of the bayonet; the knob can act on the rotary chuck, so that the rotary chuck can climb or descend along the sliding ramp.

Further, the bayonet lock is equipped with the spring in the bayonet lock cover, and the bayonet lock carries out elasticity flexible under the spring effect.

Further, the hoop shell is provided with a bayonet fitting cavity, the bayonet is arranged in the bayonet fitting cavity, and the outer end of the bayonet penetrates through the cavity bottom of the bayonet fitting cavity and is connected with the rotary clamping head.

Further, the hoop shell is provided with a rotary chuck matching cavity, and the rotary chuck is arranged in the rotary chuck matching cavity; the sliding ramp is arranged on the cavity wall of the rotary chuck matching cavity; the rotary chuck is provided with a rotary arm which is matched with the sliding ramp.

Further, a rotating boss is arranged on the inner side of the knob, and the rotating boss can act on the rotating chuck to enable the rotating chuck to act.

Further, the outside of staple bolt casing still has spacing post, be equipped with the spacing groove on the knob, this spacing post and spacing groove cooperation.

Furthermore, the limit post is also connected with a pressing bar which presses against the knob.

The utility model further provides a seat, which comprises the seat height adjusting mechanism, wherein the hoop shell is connected with a beam of the seat, which is used for connecting a chair back or a seat.

The beneficial effects of the utility model are as follows:

when the height of the chair back or the chair seat is adjusted, the clamping pin can be inserted into or separated from the clamping hole on the supporting rod of the chair only by rotating the knob, so that the height of the chair back or the chair seat can be adjusted or positioned. The knob and the bayonet lock can realize automatic reset, so that the positioning of the height position is more convenient, easy and labor-saving.

The seat height adjusting mechanism is simple in structural design, convenient to use, labor-saving and reliable in adjusting and positioning the seat height, and smooth in adjusting hand feeling.

Drawings

Fig. 1 is an exploded view of a seat height adjusting mechanism according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a combined structure of a seat height adjusting mechanism according to an embodiment of the present utility model.

Fig. 3 is a schematic view showing a combined structure of another view of the seat height adjusting mechanism according to the embodiment of the present utility model, in which the outer cover is removed.

Fig. 4 is a partial structural sectional view of the seat height adjusting mechanism according to the embodiment of the present utility model.

Fig. 5 is a partial schematic view of a seat height adjusting mechanism according to an embodiment of the present utility model, with a knob removed.

Fig. 6 is a schematic structural view of a hoop half-shell in a seat height adjustment mechanism according to an embodiment of the present utility model.

Fig. 7 is a schematic structural view of another view of the hoop half-shell in the seat height adjustment mechanism according to the embodiment of the present utility model.

Fig. 8 is a schematic view of the structure of a knob in the seat height adjusting mechanism according to the embodiment of the present utility model.

Fig. 9 is a seat having the seat height adjusting mechanism.

In the figure, 1: hoop housing, 11: projection mounting portion, 111: sliding ramp, 112: bayonet fitting cavity, 113: spin chuck mating cavity, 114: a limit column; 2: bayonet lock, 21: protruding a baffle; 3: knob, 31: rotating boss, 32: a limit groove; 4: spin chuck, 41: a rotating arm; 5: a spring; 6: pressing strips; 7: an outer cover; 8: support bar, 81: a clamping hole; 9: a handle; 10: a chair seat.

Detailed Description

The following detailed description of the utility model is presented in conjunction with the accompanying drawings to provide those skilled in the art with a better understanding of the advantages and features of the utility model, and to provide a clearer and more definite definition of the scope of the utility model.

A preferred embodiment of a seat height adjustment mechanism as shown in fig. 1 to 8, comprising a hoop housing 1, a bayonet 2 and a knob 3; the hoop shell 1 is formed by connecting two hoop half shells; the hoop shell 1 is matched with a supporting rod 8 of the seat; the hoop half shell positioned on one side of the supporting rod of the seat is provided with a convex mounting part 11; the bayonet lock 2 is installed in the convex installation part 11 of the hoop shell 1; the knob 3 is arranged on the outer side of the convex mounting part 11 of the hoop shell 1; the supporting rod 8 of the seat is provided with a plurality of clamping holes 81; the knob 3 horizontally rotates to drive the bayonet lock 2 to stretch out and draw back through the rotary climbing structure, so that the bayonet lock 2 is inserted into or separated from the bayonet lock 81 on the supporting rod 8 of the seat.

The rotary climbing structure comprises a rotary chuck 4 and a sliding ramp 111 arranged on the hoop shell 1; the rotary chuck 4 is connected to the end of the chuck pin 2; the knob 3 can act on the spin chuck 4 so that the spin chuck 4 performs a climbing or descending motion along the sliding ramp 111.

More specifically, the protruding mounting portion 11 of the hoop housing 1 has a bayonet fitting cavity 112, the bayonet 2 is disposed in the bayonet fitting cavity 112, and the outer end of the bayonet 2 passes through the cavity bottom of the bayonet fitting cavity 112 and is screwed with the spin chuck 4. The bayonet lock 2 is sleeved with a spring 5; the clamping pin 2 is also provided with a protruding baffle piece 21, and the spring 5 is positioned between the protruding baffle piece 21 of the clamping pin 2 and the cavity bottom of the clamping pin matching cavity 112; the bayonet lock 2 is elastically stretched by a spring.

The convex mounting part 11 of the hoop shell 1 is also provided with a rotary chuck matching cavity 113 which is close to the outer side, and the rotary chuck 4 is arranged in the rotary chuck matching cavity 113; a sliding ramp 111 is provided on the cavity wall of the spin chuck mating cavity 113; the spin chuck 4 has a swivel arm 41, which swivel arm 41 cooperates with a sliding ramp 111. In this embodiment, the anchor housing 1 has two sliding ramps 111 which are symmetrical in the center. Correspondingly, the spin chuck 4 has two swivel arms 41 which cooperate with the sliding ramps 111.

The knob 3 is sleeved on the protruding mounting portion 11 of the hoop housing 1, two rotating bosses 31 are arranged on the inner side of the knob, and the rotating bosses 31 can act on the rotating arm 41 of the rotating chuck 4 so as to enable the rotating chuck 4 to act.

The outside of the protruding installation part 11 of the hoop shell 1 is also provided with two limit posts 114, the knob 3 is provided with two limit grooves 32, and the limit posts 114 are correspondingly matched with the limit grooves 32 so as to limit the rotary motion of the knob 3.

Screw holes are formed in the two limiting columns 114, corresponding connecting holes are formed in the two ends of the pressing bar 6 located on the outer side of the knob, and the pressing bar 6 can be pressed against and connected to the knob 3 by means of threaded connectors penetrating through the connecting holes of the pressing bar 6 and being locked into the screw holes of the limiting columns 114. With this bead 6, the hoop housing 1 can be prevented from coming off the knob 3.

An outer cover 7 is also covered on the outer side of the knob 3.

As shown in fig. 9, the present utility model also provides a seat, which includes the seat height adjusting mechanism described above, wherein the hoop housing 1 is connected to a cross member of the seat for connecting a back or a seat. In this embodiment, the height adjusting mechanism is used to adjust the height of the seat, wherein the hoop housing 1 is connected to a cross member for connecting the seat 10.

When the rotary knob 3 is rotated, the rotary clamping head 4 is pushed by the two rotary bosses 31 on the rotary knob 3, so that the rotary clamping head 4 performs climbing motion along the sliding ramp 111 on the hoop housing 1, the clamping pin 2 is pulled to move to the outer side of the hoop housing 1, the spring 5 is compressed, and the clamping pin 1 is separated from the clamping hole 81 of the supporting rod 8 of the seat; at this time, the hoop housing 1 can be moved along the support bar 8 to adjust the height of the seat; when the knob 3 is loosened, the bayonet lock 2 is acted by the elasticity of the spring 5, moves towards the inner side direction of the hoop shell 1, the rotary chuck 4 moves downwards along the sliding ramp 111, the knob 3 is pushed to rotate, the knob 3 is reset, and the bayonet lock 2 is clamped into the clamping hole 81 of the supporting rod 8 of the seat to position the height position of the seat. After the height position is adjusted, the handle 9 connected to the hoop shell 1 can be broken off to tightly hold the two hoop half shells.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A seat height adjustment mechanism, characterized in that: the device comprises a hoop shell, a bayonet lock and a knob, wherein the hoop shell is matched with a supporting rod of a seat; wherein, a plurality of clamping holes are arranged on the supporting rod of the seat; the bayonet lock is installed in the anchor ear shell; the knob is arranged on the outer side of the hoop shell; the knob rotates to drive the bayonet lock to stretch out and draw back, so that the bayonet lock is inserted into or separated from a bayonet lock hole on a supporting rod of the seat.

2. A seat height adjustment mechanism according to claim 1, wherein: the knob drives the bayonet lock to stretch out and draw back through rotatory climbing structure.

3. A seat height adjustment mechanism as set forth in claim 2 wherein: the rotary climbing structure comprises a rotary chuck and a sliding ramp arranged on the hoop shell; the rotary chuck is connected to the end part of the bayonet; the knob can act on the rotary chuck, so that the rotary chuck can climb or descend along the sliding ramp.

4. A seat height adjustment mechanism according to claim 1 or 3, wherein: the clamping pin is sleeved with a spring, and the clamping pin stretches elastically under the action of the spring.

5. A seat height adjustment mechanism according to claim 3, wherein: the hoop shell is provided with a bayonet fitting cavity, the bayonet is arranged in the bayonet fitting cavity, and the outer end of the bayonet passes through the cavity bottom of the bayonet fitting cavity and is connected with the rotary chuck.

6. A seat height adjustment mechanism according to claim 3, wherein: the hoop shell is provided with a rotary chuck matching cavity, and the rotary chuck is arranged in the rotary chuck matching cavity; the sliding ramp is arranged on the cavity wall of the rotary chuck matching cavity; the rotary chuck is provided with a rotary arm which is matched with the sliding ramp.

7. A seat height adjustment mechanism according to claim 3, wherein: the inner side of the knob is provided with a rotary boss which can act on the rotary chuck to enable the rotary chuck to act.

8. A seat height adjustment mechanism according to claim 1 or 3, wherein: the outer side of the hoop shell is also provided with a limiting column, the knob is provided with a limiting groove, and the limiting column is matched with the limiting groove.

9. A seat height adjustment mechanism as set forth in claim 8 wherein: and the limiting column is also connected with a pressing strip which presses against the knob.

10. A seat, characterized in that: comprising a seat height adjustment mechanism according to any one of claims 1 to 9, wherein the anchor ear housing is connected to a cross member of the seat for connection to a back or seat.