CN213046193U - Lifting armrest and seat - Google Patents

Abstract

The utility model discloses a lifting armrest and a chair, which comprises an armrest main body and a supporting seat, wherein the supporting seat is configured to be connected with a chair back or a chair seat; the handrail main body comprises a longitudinal support rod, the support rod is attached to the support seat in a left-right mode, and the support rod can slide up and down relative to the support seat; a locking pin is arranged between the supporting rod and the supporting seat, and a guide groove is arranged on one of the supporting seat or the supporting rod; the locking pin penetrates through the guide groove, and meanwhile, the part of the locking pin, which penetrates out of the guide groove, is in threaded connection with the other one of the supporting rod or the supporting seat; the locking pin is provided with a control handle which is convenient for being held by hands; the armrest body has a locked state and an adjusted state; in a locking state, the control handle is rotated to clamp and fix the armrest main body and the supporting seat; in an unlocking state, the control handle is rotated to enable the armrest body and the supporting seat to be loosened so as to adjust the height of the armrest body; the locking and the adjustment of the armrest main body are realized through the locking pin, the structure is simplified, and the cost is reduced.

Description

Lifting armrest and seat

Technical Field

The utility model relates to a thing to sit on field, in particular to lift handrail and seat.

Background

The chair is a seat with a backrest and armrests, the height of the armrests on the traditional chair is mostly fixed, so that when the height of a user is too high, the user can place the arms on the armrests completely only by bending the body of the user; and when the height of a user is too low, when the user sits on the seat, the arms are placed on the armrests, so that the arms can be in a lifting state, and when the arms are kept in the state for a long time, the arms are numb, the universality of the seat is not strong, and the limitation is high, so that some seat manufacturers provide the research and development conception of the lifting armrests of the seat, the armrests of the seat can be adjusted according to the actual requirements of the user, and the universality and the comfort degree of the seat are greatly improved.

However, the conventional lifting armrest of the seat generally comprises a hollow tubular support seat and an armrest main body which is arranged in the support seat and is in sliding fit with the support seat, and a gear adjusting mechanism is arranged between the armrest main body and the support seat; the height of the armrest main body is adjusted by adjusting the gear adjusting mechanism; thus, although the height of the armrest can be adjusted, the inner structure of the armrest is too complicated, the installation and production cost of the armrest is increased, and the cost of the whole seat is greatly increased; and the armrests and the seat are connected and fixed through a plurality of screws, so that the armrests and the seat are not easy to disassemble and assemble. Therefore, it is urgently needed to design a lifting handrail which can be used for adjusting the height, has a simple structure and low cost and is convenient to disassemble.

Disclosure of Invention

The utility model overcomes the defects in the prior art, and provides a lifting handrail, which comprises a handrail main body and a supporting seat, wherein the handrail main body can slide up and down along the supporting seat, the handrail main body is connected with the supporting seat through a locking pin, a longitudinal guide groove is arranged on the supporting seat, a locking pin is arranged in the guide groove and penetrates out of the guide groove, and the penetrating part of the locking pin is in threaded connection with the handrail main body; a control handle is further arranged on the locking pin, so that the armrest main body and the supporting seat can be clamped or loosened by rotating the control handle, and the adjustment operation of the armrest main body is convenient; meanwhile, the handrail main body is connected with the supporting seat through the locking pin, so that the structure is simplified, and the structure of the handrail is simplified; the production cost can be effectively reduced.

Then, the supporting seat is arranged on one of the seat or the chair back, the armrest main body is directly connected to the supporting seat, the installation and the disassembly are all convenient, and the chair is convenient for a user to install by himself.

The technical scheme of the utility model is realized like this:

a lifting armrest comprises an armrest main body and a supporting seat for supporting the armrest main body, wherein the supporting seat is configured to be connected with a chair back or a chair seat; the handrail main body comprises a longitudinal support rod, the support rod is attached to the support seat in a left-right mode, and the support rod can slide up and down relative to the support seat; a locking pin is arranged between the supporting rod and the supporting seat, and a longitudinal guide groove is arranged on one of the supporting seat or the supporting rod; the locking pin penetrates through the guide groove, and meanwhile, the part of the locking pin, which penetrates out of the guide groove, is connected to the other one of the supporting rod or the supporting seat in a threaded manner; the locking pin is provided with a control handle convenient for being held by hands; the armrest body has a locked state and an adjusted state; in a locking state, the control handle is rotated to clamp and fix the armrest main body and the supporting seat; under the unlocking state, the control handle is rotated to enable the armrest body and the supporting seat to be loosened so as to adjust the height of the armrest body. The armrest body and the supporting seat are attached to each other left and right to realize sliding fit between the armrest body and the supporting seat, the armrest body and the supporting seat are connected through a locking pin, and the armrest body is locked and adjusted through the locking pin; when realizing that handrail main part goes up and down, simplify handrail structure, reduce cost.

Preferably, the guide groove is longitudinally arranged on the support seat, the locking pin penetrates through the guide groove from one side of the support seat, which is far away from the handrail main body, and the locking pin penetrates out of the support seat; the penetrating part of the locking pin is connected on the supporting rod in a threaded manner. The locking pin is connected on the supporting rod, and when the handrail main body is adjusted, the handrail main body only needs to be lifted, and the locking pin slides along the guide groove to lift along with the handrail main body.

Preferably, the supporting seat comprises a supporting longitudinal plate, and the guide groove is longitudinally arranged on the supporting longitudinal plate; an internal thread connecting hole is arranged on the supporting rod; the penetrating part of the locking pin is a screw rod; the locking pin is screw-fitted in the coupling hole. The penetrating part of the locking pin is a screw rod, and the supporting rod is correspondingly provided with a threaded connecting hole, so that the handrail main body is very convenient and fast to connect with the supporting seat.

Preferably, the supporting seat comprises a supporting longitudinal plate, an inward-concave sliding groove is arranged on the connecting end surface of the supporting longitudinal plate and the handrail main body, and the sliding groove is longitudinally arranged; the bracing piece embedding is installed in this spout, and the bracing piece can slide from top to bottom along the spout. The bracing piece embedding is in the spout for be connected between handrail main part and the supporting seat closely, can not rock when handrail main part goes up and down.

Preferably, a sliding positioning mechanism is further arranged between the supporting rod and the sliding groove; the sliding positioning mechanism comprises a clamping tooth and a clamping groove which are in clamping fit; in the locking state, the clamping teeth are clamped with the clamping grooves; in the adjusting state, the latch is separated from the clamping groove; the latch is arranged on one of the supporting rod or the sliding groove, and the clamping groove is correspondingly arranged on the other of the supporting rod or the sliding groove. The clamp teeth are clamped with the clamp grooves, so that the armrest body is tightly connected with the support seat in a locked state; the connection strength is higher.

Preferably, the latch is arranged on the support rod in a wavy longitudinal manner, and the clamping groove is correspondingly arranged on the inner wall of the sliding groove in a wavy longitudinal manner. The latch and the clamping groove are arranged in a wavy manner, so that the matching area is larger during clamping, and the connection is tighter.

Preferably, the control handle is arranged at the end part of the locking pin far away from the handrail main body, and the control handle is a knob; and under the locking state, the knob is in press fit with the supporting seat. The control handle is a knob, so that the operation is convenient for people.

A chair comprises a chair back, a chair seat and the lifting armrests.

Preferably, the support base is connected to both left and right sides of the seat back, and the seat back is connected to the seat base through the support base. The supporting seat plays the role of supporting the armrest main body, and the seat can also be connected with the chair back through the supporting seat.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

firstly, the support seat and the handrail main body are connected through a locking pin, a guide groove is arranged on the support seat, the locking pin penetrates through the guide groove, and the part of the locking pin, which penetrates out of the guide groove, is in threaded connection with the handrail main body; the locking pin is provided with a control handle, so that when the handrail main body is locked, the control handle is rotated to clamp the handrail main body and the supporting seat; when the armrest main body is adjusted, the control handle is rotated to enable the armrest main body and the supporting seat to be loosened; the operation is very convenient and fast, and the effect is obvious; and the handrail main body and the supporting seat are connected together through a locking pin, the connecting structure is simple, the product is more simplified, and the production and processing cost of the product can be reduced.

Moreover, although the handrail main body is connected with the supporting seat only through a locking pin, the connection between the handrail main body and the supporting seat is stable enough; because the supporting longitudinal plate is provided with the inwards concave sliding groove, the supporting rod is integrally embedded in the sliding groove, and the shaking can be eliminated; and a latch and a slot which are in clamping fit are arranged between the support rod and the chute, so that after the handrail main body is connected with the support seat, the latch is clamped with the slot to eliminate a gap, so that the handrail main body is tightly connected with the support seat; in the vertical direction, the armrest main body can bear larger acting force; the connection strength is higher.

Moreover, the supporting seat is arranged on the chair back, so that after the armrest main body and the chair back are connected, the armrest main body and the chair back are connected together through the supporting seat and the chair seat; the installation steps are reduced, so that the seat is quickly and conveniently installed and disassembled, and the seat is convenient for a user to install by himself; the transportation can be separately packed, and the transportation cost is saved.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention in which a main body of a handrail is connected to a chair back;

fig. 2 is a schematic perspective view illustrating an embodiment of the present invention in which the armrest body is not connected to the seat back;

fig. 3 is a schematic perspective view of the connection between the armrest body and the support seat according to the embodiment of the present invention;

fig. 4 is a schematic perspective view of a side surface of a chair back according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of an armrest body according to an embodiment of the present invention;

FIG. 6 is a schematic view of the embodiment of the present invention illustrating the elevation adjustment of the supporting rod relative to the supporting seat;

fig. 7 is a schematic perspective view of a seat according to an embodiment of the present invention.

The figures are numbered: a handrail main body 1; a support bar 1 a; a support portion 1 b; a support base 2; a chair back A; a seat B; a supporting vertical plate 3; a chute 4; a locking pin 5; a guide groove 6; an internal thread connecting hole 7; a control handle 8; a latch 9; a card slot 10.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present embodiment is described with reference to the reference orientation of each part, such as front and rear, in a state where the user normally uses the seat after sitting on the seat.

The specific implementation manner of the utility model is as follows:

as shown in fig. 1 to 7, the present invention provides a lifting armrest and a seat, wherein the lifting armrest comprises an armrest body 1 and a supporting seat 2 for supporting the armrest body 1; the chair comprises a chair back A and a chair seat B; the supporting seat 2 is arranged on two sides of the chair back A.

As shown in fig. 1-5, the armrest body 1 comprises a longitudinal support rod 1a and a transverse support part 1b for supporting the hand of a human body; the supporting seat 2 comprises a supporting longitudinal plate 3 which is longitudinally arranged; the support rod 1a is arranged on the vertical support plate 3, and the support rod 1a can slide up and down relative to the vertical support plate 3. The method specifically comprises the following steps: an inwards-recessed and longitudinally-arranged sliding groove 4 is formed in the end face of the connecting side of the supporting longitudinal plate 3 and the supporting rod 1a, and the supporting rod 1a can be just embedded into the sliding groove 4; so that the support bar 1a can slide up and down in the length direction of the chute 4.

After the supporting rod 1a is embedded in the sliding groove 4, a locking pin 5 is arranged between the supporting rod 1a and the supporting vertical plate 3 to connect the supporting rod 1a and the supporting vertical plate together. A longitudinal guide groove 6 is arranged on the supporting longitudinal plate 3, and the guide groove 6 penetrates through the supporting longitudinal plate 3 from left to right; the locking pin 5 penetrates through the guide groove 6 from the inner side of the supporting longitudinal plate 3 (namely, the side of the supporting longitudinal plate 3 far away from the handrail main body 1), the locking pin 5 penetrates through the supporting longitudinal plate 3 at the same time, and the penetrating part of the locking pin 5 is connected to the supporting rod 1a in a thread fit mode; specifically, the method comprises the following steps: an internal thread connecting hole 7 with a certain depth is arranged at the middle position of the supporting rod 1 a; the penetrating part of the locking pin 5 is a screw rod, the end part of the penetrating end of the locking pin 5 is correspondingly provided with an external thread, and then the locking pin 5 is in threaded connection with the internal thread connecting hole 7; so that the armrest body 1 and the locking pin 5 are kept relatively fixed in the vertical direction. A control handle 8 convenient for being held by hands is arranged at the other end of the locking pin 5, and the control handle 8 is a knob; the user can then rotate the knob to clamp or unclamp the support bar 1a to or from the vertical support plate 3. Therefore, when the handrail main body 1 is normally used, the handrail main body 1 and the supporting longitudinal plate 3 are clamped and fixed; when the height is adjusted, the support rod 1a and the support vertical plate 3 are loosened to lift the armrest main body 1; simple structure and convenient operation.

As shown in fig. 3-6, a sliding positioning mechanism is further disposed between the supporting rod 1a and the sliding groove 4, and the sliding positioning mechanism can make the connection between the supporting rod and the sliding groove tighter, specifically: the sliding limiting mechanism comprises a latch 9 and a clamping groove 10 which are in clamping fit; the latch 9 is arranged on the end surface of the support rod 1a facing the support seat 2, and the latch 9 is arranged on the support rod 1a at wavy longitudinal intervals; the clamping grooves 10 are correspondingly arranged on the inner wall of the sliding groove 4 in a wavy manner at intervals in the longitudinal direction; then, when the control handle 8 is rotated to slowly clamp the support rod 1a and the support longitudinal plate 3, and the latch 9 is clamped with the clamping groove 10, namely the handrail main body 1 is in a locking state in the vertical direction, the handrail main body 1 and the support base 2 are relatively fixed; the clamping teeth 9 and the clamping grooves 10 are in toothed connection and matching; the connection between the handrail main body 1 and the supporting seat 2 is tight, the handrail main body 1 can bear larger acting force in the vertical direction, and the connection strength between the handrail main body 1 and the supporting seat 2 is higher.

In summary, as shown in fig. 6, when the lifting armrest is used and the armrest body 1 needs to be lifted and lowered, the control handle 8 is rotated to screw the locking pin 5 out of the internal threaded connection hole 7 to a certain distance, so that the latch 9 is disengaged from the slot 10; in the process, the locking pin 5 is not required to be separated from the handrail main body 1, and the handrail main body 1 and the supporting longitudinal plate 3 are only required to be loosened; then, the armrest main body 1 is adjusted to slide up and down relative to the supporting longitudinal plate 3, in the process, the locking pin 5 synchronously moves along with the armrest main body 1, and the locking pin 5 correspondingly slides up and down in the guide groove 6; after the armrest body 1 is adjusted to a desired height, the control handle 8 is rotated in the opposite direction, so that the locking pin 5 is screwed into the internal threaded connecting hole 7 again to clamp the latch 9 with the clamping groove 10, and at this time, the armrest body 1 is locked, and the armrest body 1 and the support base 2 are relatively fixed.

The lifting armrest of the utility model realizes the lifting adjustment of the armrest main body 1 through the structure and the adjusting mode; a sliding sleeve or an adjusting mechanism is not required to be arranged in the handrail; the integral structure is simple, the lifting of the armrest main body 1 can be effectively realized while the structural strength is ensured, the production and installation cost of the armrest is reduced, and the cost of the whole seat is reduced; and the operation mode is simple and quick, and the handrail main body 1 can be adjusted in a lifting way only by rotating the control handle 8. The supporting seat 2 and the chair back A are integrally connected, so that the armrest main body 1 does not need to be additionally installed with the chair seat B; after the armrest main body 1 is connected with the chair back A, the armrest main body and the chair back A are installed on a chair seat B together; the installation is quick.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (9)

1. A lifting handrail is characterized in that: the chair comprises an armrest main body and a supporting seat for supporting the armrest main body, wherein the supporting seat is configured to be connected with a chair back or a chair seat; the handrail main body comprises a longitudinal support rod, the support rod is attached to the support seat in a left-right mode, and the support rod can slide up and down relative to the support seat; a locking pin is arranged between the supporting rod and the supporting seat, and a longitudinal guide groove is arranged on one of the supporting seat or the supporting rod; the locking pin penetrates through the guide groove, and meanwhile, the part of the locking pin, which penetrates out of the guide groove, is connected to the other one of the supporting rod or the supporting seat in a threaded manner; the locking pin is provided with a control handle convenient for being held by hands; the armrest body has a locked state and an adjusted state; in a locking state, the control handle is rotated to clamp and fix the armrest main body and the supporting seat; in the adjusting state, the control handle is rotated to enable the armrest body and the supporting seat to be loosened so as to adjust the height of the armrest body.

2. The lifting handrail of claim 1, wherein: the guide groove is longitudinally arranged on the supporting seat, the locking pin penetrates through the guide groove from one side, away from the handrail main body, of the supporting seat, and the locking pin penetrates out of the supporting seat; the penetrating part of the locking pin is connected on the supporting rod in a threaded manner.

3. The lifting handrail of claim 2, wherein: the supporting seat comprises a supporting longitudinal plate, and the guide groove is longitudinally arranged on the supporting longitudinal plate; an internal thread connecting hole is arranged on the supporting rod; the penetrating part of the locking pin is a screw rod; the locking pin is screw-fitted in the coupling hole.

4. The lifting handrail of claim 1, wherein: the supporting seat comprises a supporting longitudinal plate, an inward-concave sliding groove is formed in the connecting end face of the supporting longitudinal plate and the handrail main body, and the sliding groove is longitudinally arranged; the bracing piece embedding is installed in this spout, and the bracing piece can slide from top to bottom along the spout.

5. The lifting handrail of claim 4, wherein: a sliding positioning mechanism is also arranged between the supporting rod and the sliding groove; the sliding positioning mechanism comprises a clamping tooth and a clamping groove which are in clamping fit; in the locking state, the clamping teeth are clamped with the clamping grooves; in the adjusting state, the latch is separated from the clamping groove; the latch is arranged on one of the supporting rod or the sliding groove, and the clamping groove is correspondingly arranged on the other of the supporting rod or the sliding groove.

6. The lifting handrail of claim 5, wherein: the latch be wavy vertically arrange on the bracing piece, the draw-in groove correspond to be wavy vertically arrange on the inner wall of spout.

7. The lifting handrail of claim 2, wherein: the control handle is arranged on the end part of the locking pin far away from the handrail main body and is a knob; and under the locking state, the knob is in press fit with the supporting seat.

8. A seat, characterized by: comprising a chair back and a chair seat and a lifting arm as claimed in any one of claims 1 to 7.

9. The seat according to claim 8, wherein: the supporting seat is connected to the left side and the right side of the chair back, and the chair back is connected to the chair seat through the supporting seat.

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