CN216316614U - Chair back fixing assembly - Google Patents

Abstract

The utility model discloses a chair back fixing component, which comprises a base, a supporting rod, an outer shell, a sliding rod and a locking plate, and is characterized in that: the chair comprises a base, a supporting rod, a shell body, a sliding rod, a locking plate and a locking plate, wherein the supporting rod is fixed on the base, the shell body is fixed at the upper end of the supporting rod, the sliding rod is installed inside the shell body and can slide in the shell body, a convex rail is arranged on the upper surface of the sliding rod, a groove is formed in the surface of the convex rail, a limiting shell is integrally formed above the shell body and communicated with the shell body, the locking plate is installed inside the limiting shell body and can slide inside the limiting shell body, and a clamping groove is formed in the lower end of the locking plate.

Description

Chair back fixing assembly

Technical Field

The utility model relates to the technical field of seat manufacturing, in particular to a seat back fixing assembly.

Background

The chair is the indispensable equipment in the present life official working, but the back of the chair of current chair generally all is relatively fixed can not adjust, but the demand of each people to the back of the chair is different in current work or the family, and current chair can not adjust the back of the chair and the angle of seat board of chair as required, and many people of working can take place diseases such as psoatic strain for a long time sitting moreover, and the lumbago lets the people can not concentrate on, work seriously, causes very serious influence to work.

The position of the chair back can not be adjusted to current seat, and when using, the people can not adjust the back of the chair of chair according to position of sitting and size, makes the position of the back of the chair satisfy people's user demand, has reduced the travelling comfort of seat, and some have back of the chair regulatory function's seat, and the back of the chair is adjusted the structure complicacy, and the cost is high, is unfavorable for ordinary consumer to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chair back fixing component to solve the problems that a chair back in the prior art cannot be adjusted, is complex in structure and high in manufacturing cost.

In order to solve the technical problems, the utility model provides the following technical scheme: the fixed subassembly of back of the chair, including base, bracing piece, shell body, slide bar and locking board, its characterized in that: the utility model discloses a locking device of a motor vehicle, including the casing, the casing is fixed on the base, the casing is fixed in the upper end of bracing piece, the slide bar is installed in the inside of casing and can take place to slide in the casing, the upper surface of slide bar is provided with protruding rail, the surface of protruding rail is seted up flutedly, the top integrated into one piece of casing has spacing casing, spacing casing and casing intercommunication, the locking plate is installed in spacing casing and can slide in inside, the draw-in groove has been seted up to the lower extreme of locking plate, the draw-in groove agrees with protruding rail, thereby the locking plate passes the casing and can imbeds in the recess, thereby carries out spacing fixed slide bar's position to protruding rail, and when draw-in groove and protruding rail were in same straight line, the slide bar was in slidable state, when draw-in groove and protruding rail dislocation, the slide bar was in the lock state.

According to the technical scheme, the two ends of the locking plate are fixedly provided with the limiting blocks, when the inner side end face of one end limiting block is attached to one end of the limiting shell, the sliding rod is in a slidable state, and when the inner side end face of one end limiting block is not attached to one end of the limiting shell, the sliding rod is in a locked state.

According to the technical scheme, the grooves are formed by gaps among the convex blocks, the convex blocks are arranged above the convex rails and are in a group of two, and the number of the convex blocks is multiple.

According to the technical scheme, the number of the convex rails is the same as that of the clamping grooves at the lower end of the locking plate.

According to the technical scheme, the handle is fixed at the upper end of the supporting rod.

According to the technical scheme, the inner side of the handle is provided with the mounting block, the two ends of the outer shell are provided with the mounting holes which are embedded with the mounting block, and the mounting block is fixed in the mounting hole of the outer shell and is in contact with the side sliding groove of the sliding rod.

Compared with the prior art, the utility model has the following beneficial effects: in the utility model, the raw materials are mixed,

(1) the sliding rod and the outer shell are arranged, and the sliding connection between the sliding rod and the outer shell is utilized, so that the sliding rod can slide in the outer shell, the extending length of the sliding rod is controlled, the position of the push plate is further controlled, the front position and the rear position of the chair back are adjusted, the structure is simple, and the production cost is low;

(2) through being provided with locking board, recess, utilize the removal about locking board, with locking board embedding recess in, when the draw-in groove of locking board and protruding rail are on same straight line, the slide bar can carry out position control, and when draw-in groove and protruding rail are not on same straight line, at this moment the locking board dies the slide bar lock for the position of the back of the chair can be fixed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the outer casing of the present invention

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a partially enlarged schematic view of the internal structure of the present invention;

FIG. 5 is a schematic view of the locking block of the present invention;

FIG. 6 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 7 is a schematic top view of the structure of the third embodiment of the present invention;

in the figure: 1. a base; 2. a support bar; 3. a handle; 41. a slide bar; 42. a bump; 43. a groove; 44. an outer housing; 45. a raised rail; 61. a locking plate; 62. a limiting block; 63. a card slot; 64. and a limiting shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-5, the present invention provides the following technical solutions: subassembly is fixed to back of chair, including base 1, bracing piece 2, shell body 44, slide bar 41 and locking plate 61, its characterized in that: the support rod 2 is fixed on the base 1, the outer shell 44 is fixed at the upper end of the support rod 2, the outer shell 44 is a cuboid shell with one closed end, a cuboid shell with an opening at the lower part is also formed below the outer shell 44 and is sleeved at the upper end of the support rod 2 to be fixed through screws, the slide rod 41 is inserted into the outer shell 44 from the opening end and can slide in the outer shell 44, the upper surface of the slide rod 41 is provided with a convex rail 45, the surface of the convex rail 45 is provided with a groove 43, the upper part of the outer shell 44 is integrally formed with a limiting shell 64, the limiting shell 64 is communicated with the outer shell 44, the locking plate 61 is arranged in the limiting shell 64 and can slide in the limiting shell 64, the lower end of the locking plate 61 is provided with a clamping groove 63, the clamping groove 63 is matched with the convex rail 45, the locking plate 61 penetrates through the outer shell 44 and can be embedded into the groove 43, the convex rail 45 is limited so as to fix the position of the slide rod 41, when the clamping groove 63 and the convex rail 45 are in the same straight line, the sliding rod 41 is in a slidable state, when the clamping groove 63 and the convex rail 45 are dislocated, the sliding rod 41 is in a locked state, the sliding rod 41 slides in the outer shell 44, the extending length of the sliding rod 41 is adjusted, the sliding rod 41 is locked by utilizing the left-right movement of the locking plate 61, when the clamping groove 63 below the locking plate 61 and the convex rail 45 are in the same straight line, the sliding rod 41 is not locked and can slide, when the clamping groove 63 below the locking plate 61 and the convex rail 45 are dislocated and the locking plate 61 is embedded in the groove 43, the sliding rod 41 is locked by the locking plate 61, so that the sliding rod 41 can be fixed, the position of the chair back can be adjusted, and the use requirements can be met.

The limiting blocks 62 are fixed at two ends of the locking plate 61, when the end face of the inner side of one end limiting block 62 is attached to one end of the limiting shell 64, the sliding rod 41 is in a slidable state, when the end face of the inner side of one end limiting block 62 is not attached to one end of the limiting shell 64, the sliding rod 41 is in a locked state, the limiting blocks 62 are used for limiting the movement of the locking plate 61, the locking block 61 only moves in the limiting shell 64, and through the position relation between the limiting blocks 62 and the limiting shell 64, when one end of each limiting block 62 is attached to one end of the limiting shell 64, the sliding rod 41 is in a sliding state, so that the use is more convenient, and the positions of the convex rail 45 and the clamping groove 63 in the same straight line do not need to be found.

The number of the convex rails 45 is the same as that of the clamping grooves 63 at the lower end of the locking plate 61, and the two convex rails 45 are symmetrically distributed on two sides of the upper surface of the sliding rod 41, so that the locking plate 61 is stable in structure when locked.

The upper end of the supporting rod 2 is fixed with a handle 3, and the handle 3 is fixedly arranged on the supporting rod 2 through a screw, so that the chair can be conveniently dragged.

The inboard of handle 3 is provided with the installation piece, and the mounting hole with installation piece looks gomphosis is seted up at the both ends of shell body 44, and the installation piece is fixed in the mounting hole of shell body 44 and with the side spout contact of slide bar 41, through the installation piece in the handle 3, leads slide bar 41's slip, makes slide bar 41's slip more stable.

Example two

As shown in fig. 6, the present embodiment is the same as the first embodiment in other structures, except that: the recess comprises the clearance between the lug, and the lug setting is in the top of protruding rail and two liang a set of, and the quantity of lug is the multiunit, through set up multiunit lug 42 on protruding rail 45 for slide bar 41's protrusion distance divide into a plurality of gears, thereby makes the back of the chair adjust between a plurality of gears, and locking structure is more firm.

EXAMPLE III

As shown in fig. 7, the present embodiment is the same as the first embodiment in other structures, except that: the number of the convex rails 45 is one so that locking is facilitated when the locking plate 61 is engaged with the groove 43, but stability and strength of the structure are not as good as those of the structure of the first embodiment, compared with the structure of the double convex rails of the first embodiment.

The working principle is as follows: when the end face of the inner side of the one end limiting block is attached to one end of the limiting shell, the sliding rod is in a slidable state, the end is set as the left end in the embodiment, the locking plate is moved, the left end of the locking plate is enabled to be flush with the left end of the limiting shell, at the moment, the clamping groove below the locking plate and the convex rail are located on the same straight line, the sliding rod can slide, the extending distance of the sliding rod is adjusted, the position of the chair back is adjusted, the locking plate is moved leftwards again when the position is adjusted, the right end of the locking plate is enabled to be flush with the right end of the limiting shell, at the moment, the convex rail is clamped by the locking plate, the sliding rod is locked, the position of the sliding rod is fixed, the position of the chair back is further locked, and the position adjustment is completed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The fixed subassembly of back of the chair, including base, bracing piece, shell body, slide bar and locking board, its characterized in that: the utility model discloses a locking device of a motor vehicle, including the casing, the casing is fixed on the base, the casing is fixed in the upper end of bracing piece, the slide bar is installed in the inside of casing and can take place to slide in the casing, the upper surface of slide bar is provided with protruding rail, the surface of protruding rail is seted up flutedly, the top integrated into one piece of casing has spacing casing, spacing casing and casing intercommunication, the locking plate is installed in spacing casing and can slide in inside, the draw-in groove has been seted up to the lower extreme of locking plate, the draw-in groove agrees with protruding rail, thereby the locking plate passes the casing and can imbeds in the recess, thereby carries out spacing fixed slide bar's position to protruding rail, and when draw-in groove and protruding rail were in same straight line, the slide bar was in slidable state, when draw-in groove and protruding rail dislocation, the slide bar was in the lock state.

2. The seat back securing assembly of claim 1, wherein: the two ends of the locking plate are fixed with limiting blocks, when the inner side end face of one end limiting block is attached to one end of the limiting shell, the sliding rod is in a slidable state, and when the inner side end face of one end limiting block is not attached to one end of the limiting shell, the sliding rod is in a locked state.

3. The seat back securing assembly of claim 1, wherein: the groove is formed by gaps among the convex blocks, the convex blocks are arranged above the convex rail and are in a group, and the number of the convex blocks is multiple.

4. The seat back securing assembly of claim 1, wherein: the number of the convex rails is the same as that of the clamping grooves at the lower end of the locking plate.

5. The seat back securing assembly of claim 1, wherein: the upper end of the supporting rod is fixed with a handle.

6. The seat back securing assembly of claim 5, wherein: the inboard of handle is provided with the installation piece, the mounting hole with installation piece looks gomphosis is seted up at the both ends of shell body, the installation piece is fixed in the mounting hole of shell body and is contacted with the side spout of slide bar.

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