CN212070014U

CN212070014U - Shaping device for armrest of chair

Info

Publication number: CN212070014U
Application number: CN202020597508.5U
Authority: CN
Inventors: 刘顺强; 叶永灿; 吴祥中; 彭友
Original assignee: Huizhou Tianchang Industry Co ltd
Current assignee: Huizhou Tianchang Industry Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-12-04
Anticipated expiration: 2030-04-20

Abstract

A seat armrest shaping device comprises a seat body, a clamping kit and a pushing and pressing kit, wherein the clamping kit comprises a positioning block, a convex column, a pressing driving piece, a pressing block and two clamping assemblies, in one of the clamping assemblies, the clamping assembly comprises a clamping driving piece, a clamping block and a limiting boss, the pushing and pressing kit comprises a pushing and pressing driving piece, a sliding block, a pushing and pressing block and a plurality of elastic particles, the convex column is arranged on the positioning block, the pressing and driving piece is used for driving the pressing block to press the end part of a supporting rod of a seat armrest against the convex column, the clamping driving pieces of the two clamping assemblies are used for driving the clamping block to clamp the end part of the supporting rod, the limiting boss is used for limiting the end part of the supporting rod, the pushing and pressing driving piece is used for driving the sliding block to slide, and further driving the pushing and pressing block to push and press an armrest ring of, while the seat armrest can be reliably fixed without positional deviation.

Description

Shaping device for armrest of chair

Technical Field

The utility model relates to a shaping device's technical field especially relates to a seat armrest shaping device.

Background

A chair is a piece of daily living furniture, usually fitted with a backrest and armrests. With the demand of people for quality of life being higher and higher, people pursue more beautiful and fashionable and more portable seats, and plastic seats are more popular due to the fact that plastic plasticity is strong, any style is convenient to mould, and the seats are more portable than traditional wood or steel.

As shown in fig. 1, the armrest 20 of the plastic seat includes a support rod 21 and an armrest ring 22, the support rod 21 is provided with a bending portion 21a, and a connecting portion 23 is provided between the support rod 21 and the armrest ring 22, and the armrest 20 shown in fig. 1 has the following problems in practical production.

Firstly, after the seat armrest 20 is taken out of the injection molding machine, as the temperature of the seat armrest 20 is reduced, the bent portion 21a of the support rod 21 is gradually deformed due to cooling shrinkage of plastic, and once the bent portion 21a is excessively deformed, the structural strength of the support rod 21 is reduced, so that the support rod 21 is easily broken at the bent portion 21 a; further, the surface of the seat armrest 20 needs to be kept good and intact, that is, the seat armrest 20 needs to be prevented from being scratched, however, in the present shaping operation of the seat armrest 20, the outer surface of the seat armrest 20 is easily scratched, thereby causing deterioration in the appearance quality of the seat armrest 20; furthermore, due to the irregular structure of the armrest 20, the armrest 20 is difficult to be reliably fixed during shaping, and the armrest 20 is likely to roll over during shaping.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing one kind and can carrying out the plastic to armrest, can effectively prevent armrest outward appearance in the plastic in-process moreover and be scraped the flower, armrest can reliably be fixed armrest shaping device simultaneously.

The purpose of the utility model is realized through the following technical scheme:

a seat armrest shaping device comprising:

a base body;

the clamping assembly comprises a positioning block, a convex column, a compression driving piece, a compression block and two clamping assemblies, the positioning block is arranged on the base body, the convex column is arranged on the positioning block, the compression driving piece is arranged on the base body, the compression block is connected with a driving shaft of the compression driving piece, the two clamping assemblies are respectively arranged on the base body, in one of the clamping assemblies, the clamping assembly comprises a clamping driving piece, a clamping block and a limiting boss, the clamping driving piece is arranged on the base body, the clamping block is arranged on the base body in a sliding mode and is connected with the driving shaft of the clamping driving piece, a clamping groove is formed in the clamping block, and the limiting boss is arranged on the side wall of the clamping groove; and

the pushing and pressing external member comprises a pushing and pressing driving piece, a sliding block, a pushing and pressing block and a plurality of elastic particles, the pushing and pressing driving piece is arranged on the base body, the sliding block is arranged on the base body in a sliding mode and connected with a driving shaft of the pushing and pressing driving piece, the pushing and pressing block is hinged to the sliding block, an accommodating groove is formed in the pushing and pressing block, and the elastic particles are arranged on the side wall of the accommodating groove respectively.

In one embodiment, the pushing block is further provided with a spacing groove, and the spacing groove is communicated with the accommodating groove.

In one embodiment, the positioning block and the convex column are of an integrally formed structure.

In one embodiment, a rounded portion is disposed on the convex column.

In one embodiment, the pushing and pressing kit further includes two buffer springs, one end of each of the two buffer springs is abutted against the pushing and pressing block, and the other end of each of the two buffer springs is abutted against the sliding block.

In one embodiment, the armrest shaping device further includes a plurality of plastic posts, and each plastic post is disposed on the seat body.

In one embodiment, the clamping set is provided in two and the pushing set is provided in two.

In one embodiment, a soft adhesive layer is arranged on the side wall of the pressing block.

In one embodiment, the clamp drive is a pneumatic cylinder.

In one embodiment, the compression driver is a power clamp.

Compared with the prior art, the utility model discloses at least, following advantage has:

the utility model relates to a chair armrest shaping device, which comprises a seat body, a clamping external member and a pushing and pressing external member, wherein the clamping external member comprises a positioning block, a convex column, a pressing driving piece, a pressing block and two clamping components, in one of the clamping components, the clamping component comprises a clamping driving piece, a clamping block and a limiting boss, the pushing and pressing external member comprises a pushing and pressing driving piece, a slide block, a pushing and pressing block and a plurality of elastic particles, the convex column is arranged on the positioning block, the pushing and pressing driving piece is used for driving the pressing block to press the end part of a supporting rod of the chair armrest on the convex column, the clamping driving pieces of the two clamping components are used for driving the clamping block to clamp the end part of the supporting rod, the limiting boss is used for limiting the end part of the supporting rod, the pushing and pressing driving piece is used for driving the slide block to slide, and on the other hand, the scraping of the seat armrests is reduced, so that the appearance of the seat armrests can be effectively prevented from being scraped in the shaping process, and meanwhile, the seat armrests can be reliably fixed without position deviation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a seat armrest according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a seat armrest shaping device according to an embodiment of the present invention;

FIG. 3 is a schematic view of the clamp assembly of the armrest reshaping device shown in FIG. 2;

FIG. 4 is a schematic view of the push assembly of the armrest reshaping device shown in FIG. 2;

fig. 5 is a partial structural view of the pressing kit shown in fig. 4.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It is noted that as used herein, reference to an element being "connected" to another element also means that the element is "in communication" with the other element, and fluid can be in exchange communication between the two.

Referring to fig. 2, a chair armrest shaping device 10 includes a base 100, a clamping kit 200 and a pushing kit 300, wherein the clamping kit 200 is mounted on the base 100, the clamping kit 200 is used for fixing an end of a support rod 21, the pushing kit 300 is mounted on the base 100, specifically, a bracket is mounted on the base 100, the pushing kit 300 is mounted on the bracket, the pushing kit 300 is used for fixing an armrest ring 22 of a chair armrest 20 and pushing the armrest ring 22, since the bottom of the support rod 21 of the chair armrest 20 is fixed by the clamping kit 200, a bending portion of the support rod 21 tends to move in a direction opposite to the bending direction, so as to effectively prevent deformation caused by plastic shrinkage when the support rod 21 is cooled, and the surface of the chair armrest 20 is not scratched by the clamping kit 200 and the pushing kit 300 during shaping, and the chair armrest 20 can be reliably fixed, no positional shift occurs.

Referring to fig. 2 and 3, the clamping kit 200 includes a positioning block 210, a protruding column 220, a pressing driving member 230, a pressing block 240 and two clamping assemblies 250, the positioning block 210 is disposed on the base 100, the protruding column 220 is disposed on the positioning block 210, the pressing driving member 230 is disposed on the base 100, the pressing block 240 is connected to a driving shaft of the pressing driving member 230, the two clamping assemblies 250 are disposed on the base 100, respectively, in one of the clamping assemblies 250, the clamping assembly 250 includes a clamping driving member 251, a clamping block 252 and a limiting boss 253, the clamping driving member 251 is disposed on the base 100, the clamping block 252 is slidably disposed on the base 100, the clamping block 252 is connected to the driving shaft of the clamping driving member, a clamping groove 252a is formed in the clamping block 251, and the limiting boss 253 is disposed on a side wall of the clamping groove.

It should be noted that the protruding column 220 is disposed on the positioning block 210, specifically, the protruding column 220 is disposed on a side wall of the positioning block 210, in an embodiment, the positioning block 210 and the protruding column 220 are in an integrally formed structure, the pressing driving member 230 is mounted on the base, the pressing block 240 is mounted on a driving shaft of the pressing driving member 230, and the pressing driving member 230 is used to drive the pressing block 240 to move toward or away from the protruding column 220, so that, when the end of the supporting rod 21 of the seat armrest 20 is inserted into the protruding column 220, the pressing driving member 230 drives the pressing block 240 to press the hole on the supporting rod 21, so that the seat armrest 20 is pressed onto the positioning block 210; further, two clamping assemblies 250 are respectively installed on the seat body 100, and the two clamping assemblies 250 are respectively located at two sides of the protruding column 220, so that when the seat armrest 20 is pressed on the positioning block 210 by the pressing driving member 230, the clamping assemblies 250 clamp and fix the seat armrest 20 from a lateral direction, specifically, a slide rail is installed on the seat body 100, and faces the protruding column 220, the clamping block 252 slides on the slide rail so as to be close to or far from the protruding column 220, the clamping driving member 251 is installed on the seat body 100, a driving shaft of the clamping driving member 251 is connected with the clamping block 252, the clamping driving member 251 is used for driving the clamping block 252 to move, in an embodiment, the clamping driving member 251 is an air cylinder; in addition, because the outer wall of the end of the support rod 21 of the seat armrest 20 has an arc-shaped structure, the clamping groove 252a is formed on the side of the clamping block 252 close to the protruding pillar 220, the clamping groove 252a can be tightly attached to the outer wall of the end of the support rod 21, further, the limiting boss 253 on the inner wall of the clamping groove 252a can be engaged with the groove at the end of the support rod 21 of the seat armrest 20, so that when the clamping block 252 clamps the end of the support rod 21 of the seat armrest 20, the seat armrest 20 can be effectively prevented from rotating, that is, in the shaping process, the seat armrest 20 can be effectively fixed, and meanwhile, the clamping block 252 is close to or away from the seat armrest 20 in a sliding manner, so that when the seat armrest 20 is loaded or unloaded, it is not required to rub against the inner wall of the clamping groove 252a of the clamping block 252a, thereby effectively preventing the seat armrest 20 from being scratched, effectively protecting the exterior of the seat arm 20.

In one embodiment, a soft adhesive layer is disposed on the side wall of the pressing block 240, and the soft adhesive layer may be nylon cloth or soft plastic, so that the pressing block 240 effectively prevents the armrest 20 from being scratched when pressing the armrest 20; further, the convex pillar 220 is provided with a rounded portion, which is beneficial to the seat armrest 20 to be inserted onto the convex pillar 220, and on the other hand, the convex pillar 220 can be effectively prevented from scratching the seat armrest 20.

Referring to fig. 2 and 4, the pressing assembly 300 includes a pressing driving element 310, a sliding block 320, a pressing block 330 and a plurality of elastic particles 340, the pressing driving element 310 is disposed on the base 100, the sliding block 320 is slidably disposed on the base 100, the sliding block 320 is connected to a driving shaft of the pressing driving element 310, the pressing block 330 is hinged to the sliding block 320, a receiving groove 331 is formed in the pressing block 330, and each elastic particle 340 is disposed on a side wall of the receiving groove 331.

Note that, a bracket is installed on the seat body 100, and the push kit 300 is installed on the bracket, so that the armrest 20 can be shaped in a vertical manner; then, a slide rail is installed on the bracket, the slider 320 slides on the slide rail, and a driving shaft of the push driving member 310 is connected with the slider 320, so that the push driving member 310 drives the slider 320 to slide, in one embodiment, the push driving member 310 is an air cylinder; further, the plunger 330 is articulated mutually with slider 320, so that the plunger 330 can rotate in vertical reversal for slider 320, holding tank 331 has been seted up on the plunger 330, holding tank 331 is used for holding fixed handrail ring 22, then be provided with a plurality of elastic particles 340 on the inside wall of holding tank 331, each elastic particle 340 can increase the centre gripping dynamics to armrest 20, thereby improve armrest 20's stability, it needs to be noted that, holding tank 331's inside wall and handrail ring 22 can closely laminate.

Referring to fig. 4 again, the pushing block 330 is further provided with an avoiding groove 332, and the avoiding groove 332 is communicated with the accommodating groove 331. It should be noted that, because the connecting portion 23 between the armrest ring 22 and the support rod 21 is a three-forked structure, the avoiding groove 332 is communicated with the accommodating groove 331 to accommodate the connecting portion 23 together, so that the armrest 20 can be protected better, and it should be noted that the depth of the accommodating groove 331 is greater than the depth of the avoiding groove 332 to protect a plurality of teeth on the armrest ring 22.

It should be noted that, the end of the supporting rod 21 is fixed in the clamping kit 200, then the connecting portion 23 of the seat armrest 20 is received and fixed in the receiving slot 331 and the avoiding slot 332, and then the pushing block 330 is driven by the pushing driving member 310 to slide, so as to achieve the purpose of pushing and shaping the seat armrest 20, and it should be noted that, as the pushing block 330 pushes and shapes the armrest ring 22, the pushing block 330 is hinged to the slider 320, so that the receiving slot 331 and the avoiding slot 332 on the pushing block 330 can be always tightly attached to the seat armrest 20, thereby effectively preventing the seat armrest 20 and the pushing block 330 from being scratched due to friction, and effectively protecting the appearance of the seat armrest 20.

Referring to fig. 5, in one embodiment, the pressing member 300 further includes two buffer springs 350, one end of each of the two buffer springs 350 is abutted against the pressing block 330, and the other end of each of the two buffer springs 350 is abutted against the slider 320.

The pushing block 330 is hinged to the slider 320, and is connected to the pushing block 330 and the slider 320 by the buffer spring 350, so that when the pushing block 330 pushes and shapes the seat armrest 20, the seat armrest 20 can be prevented from receiving an excessive impact force from the push driver 310, and the pushing of the seat armrest 20 can be more gentle.

Referring to fig. 2 again, the armrest shaping device 10 further includes a plurality of plastic posts 400, and each plastic post 400 is disposed on the seat 100. It should be noted that the plastic column 400 is used for supporting the base 100, and is also used for isolating the external force from the base 100.

Referring to fig. 2 again, in one embodiment, there are two clamping sets 200 and two pushing sets 300. Since the seat includes the left and right armrests, two clamping members 200 and two pushing members 300 are provided to push and shape the left and right armrests, respectively, thereby improving the shaping efficiency.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A seat armrest shaping device, comprising:

a base body;

2. The chair armrest shaping device of claim 1, wherein the pushing block further defines a space-avoiding slot, and the space-avoiding slot is communicated with the accommodating slot.

3. The armrest shaping device of claim 1 wherein the positioning block is integrally formed with the post.

4. The armrest reshaping device of claim 1, wherein the post has a rounded portion disposed thereon.

5. The armrest shaping device of claim 1 wherein the push assembly further comprises two buffer springs, one end of each of the two buffer springs is in contact with the push block, and the other end of each of the two buffer springs is in contact with the slide block.

6. The device of claim 1, further comprising a plurality of plastic posts, each plastic post being disposed on the seat body.

7. The armrest shaping device of claim 1 wherein there are two clamping sets and two pushing sets.

8. The armrest shaping device of claim 1 wherein a soft gel layer is disposed on a sidewall of the compression block.

9. The armrest shaping device of claim 1 wherein the clamp drive member is an air cylinder.

10. The chair armrest shaping device of claim 1 wherein the compression drive member is a power clamp.