CN104013234B - A kind of compressible portable push-pull device at fixed - Google Patents

Abstract

The invention provides a compressible and movable push-pull device, which includes support bodies arranged longitudinally at intervals, a pair of foldable hinge rods are arranged at the same height between adjacent support bodies, and a middle support body between the front and rear support bodies is longitudinally arranged There is an elastic bayonet, and the front hinge rod of the middle support body along the closing direction is provided with an arc-shaped card that cooperates with the elastic bayonet, and a gap is provided at the end of the arc-shaped card to cooperate with the end of the elastic bayonet to prevent the middle support from falling. The front side support body is closed along the moving direction, and the middle support body is provided with an arc-shaped pressing bar on the hinge rod on the rear side along the closing direction. The arc-shaped pressing bar and the arc-shaped card are dislocated. When closing, the arc-shaped pressing rod presses the elastic bayonet downwards to disengage the arc-shaped card from the elastic bayonet, and the middle support body continues to close to the front side support body. The present invention utilizes the hinge connection mechanism and the interlocking mechanism between the arrangement and multiple hinge structures to ensure that the shrinking device can be folded and unfolded successively, ensuring the stability and orderly use of the shrinking device, and is also convenient for maintenance and replacement.

Description

A compressible mobile push-pull device

technical field

The invention relates to a compressible and movable push-pull device.

Background technique

Shrinkable push-pull devices are widely used in existing tables and chairs, anti-theft door walls and furniture. However, the existing shrinkable push-pull devices are only designed by means of simple hinged links, and cannot achieve orderly deployment and expansion when shrinking and unfolding. Shrinkage, and the addition and deletion of units cannot be performed according to the needs of the expansion and contraction length.

Contents of the invention

The present invention improves the above problems, that is, the technical problem to be solved by the present invention is that the existing compression devices cannot achieve orderly expansion and contraction when contracting and expanding.

A specific embodiment of the present invention is: a compressible movable push-pull device, comprising support bodies arranged longitudinally at intervals, a pair of foldable hinge rods are arranged at the same height between the adjacent support bodies, and the two ends of the hinge rods are It is hinged with the support body, and the middle support body between the front and rear ends of the support body is longitudinally provided with elastic bayonet pins, and the front side hinge rod of the middle support body along the closing direction is provided with arcs that cooperate with the elastic bayonet pins. card, the end of the arc-shaped card is provided with a gap to cooperate with the end of the elastic bayonet to prevent the middle support body from being closed along the moving direction of the front side support body, and the hinge rod on the rear side of the middle support body along the closing direction Correspondingly, an arc-shaped pressing bar is arranged, and the arc-shaped pressing bar and the arc-shaped card are misplaced. When the arc-shaped pressing bar closes to the middle support body, the arc-shaped pressing bar presses the elastic bayonet downward to make the arc-shaped card and the elastic card The pin is disengaged, and the middle support body continues to close up to the front side support body.

Further, the intermediate support body is also provided with a second elastic bayonet opposite to the elastic bayonet, and the upper end of the arc-shaped card is provided for abutting against the lower end of the second elastic bayonet to shrink the second elastic bayonet. The upper end of the arc-shaped pressing rod is provided with a notch. When the arc-shaped card is closed, the arc-shaped card releases the pressure on the second elastic bayonet, and the lower end of the second elastic bayonet rebounds and inserts into the arc-shaped pressing pin. in the notch of the rod.

Further, the connection ends of the pair of hinge rods are also hinged to a push rod, the upper end of the push rod is hinged to a support panel, and one side of the support panel is hinged to the upper end of the support body.

Further, the support panel has two layers, the upper support panel and the lower support panel are connected via a connecting rod, and the two ends of the connecting rod are hinged to the two support panels.

Further, a pair of auxiliary hinge rods are also provided between the adjacent supports, the middle parts of the pair of auxiliary hinge rods are hinged to the hinge rods, and the movable ends on both sides of the auxiliary hinge rods are fixed in the chute of the support body. When the support body is closed, the movable ends on both sides of the auxiliary hinge rod move upward along the chute.

Further, the lower end of the supporting body is provided with rollers and bolt holes for fixing the supporting body.

Compared with the prior art, the present invention has the following beneficial effects: the present invention utilizes the hinge connection mechanism and the interlocking locking mechanism between the setting and multiple hinge structures to ensure that the shrinking device can be folded and unfolded successively, and that the shrinking device is secure. The use is stable and orderly, and it is also easy to maintain and replace.

Description of drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of the structure of the successive folding and unfolding mechanism in Embodiment 1 of the present invention.

Fig. 3 is a schematic diagram of the working state of the successively folding and unfolding mechanism (initial unfolding state) according to Embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of the working state of the successively folding and unfolding mechanism in Embodiment 1 of the present invention (the arc-shaped card is released from the stuck state).

Fig. 5 is a schematic diagram of the working state of the successively folding and unfolding mechanism (folding state) according to Embodiment 1 of the present invention.

Fig. 6 is a schematic structural diagram of Embodiment 2 of the present invention.

In the figure: 10-support body, 100-intermediate support body, 110-hinge rod, 120-auxiliary hinge rod, 130-chute, 140-ejector, 20-seat surface, 30-elastic bayonet pin, 210-chair back , 111-curved card, 1110-notch, 1111-tapered protrusion, 40-second elastic bayonet, 112-curved pressure rod, 1120-notch, 50-desktop.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1: A kind of compressible mobile bench

As shown in Figures 1 to 2, a compressible and movable long row chair includes support bodies 10 arranged vertically at intervals, and the support body 10 is the support leg of the row chair. A pair of adjacent support bodies 10 are arranged at the same height. Foldable hinge rod 110, in the figure, an auxiliary hinge rod 120 is also provided on each adjacent support body 10, and the middle part of the auxiliary hinge rod 120 is hinged with the hinge rod 110 to form a stable structure similar to the retractable gate of a sliding door , the two ends of the auxiliary hinge rod 120 are fixed in the chute 130 of the support body 10 through the slider. The connecting end of the hinge rod 110 hinge rod is hinged with a push rod 140, the upper end of the push rod 140 is hinged to the lower end of the chair surface 20, and one end of the chair surface is hinged to the upper end of the support body (the hinged end is an end in the unfolding direction, which is the seat surface in the figure). In the figure, when the leftmost support body is fixed, it is folded from the right side to the left side, the hinge rod 110 is folded, and the push rod 140 props up the seat surface 20 to realize the fold.

The above-mentioned long row of chairs can be conveniently folded and unfolded under the action of the push rod 140 and the folding hinge rod 110, but this type of long row of chairs still has problems. The back contractions are easy to hinder each other, causing inconvenience in contraction. At this time, if you can contract one by one, you can avoid the stuck situation when the middle part is folded, and you can also meet the needs of different lengths to expand the chairs of the corresponding units.

As shown in Figures 3 to 5, the present invention is longitudinally provided with elastic bayonet pins 30 on the intermediate support body 100 between the front and rear end support bodies 10, and the elastic bayonet pins 30 mainly include compression springs whose lower ends are fixed on the intermediate support body 100. , the upper end of the compression spring is fixed with a shaft pin, and the front hinge rod 110 of the intermediate support body 100 along the closing direction is provided with an arc-shaped card 111 that cooperates with the elastic bayonet pin 30, and the end of the arc-shaped card 111 is provided with a gap 1110 and The ends of the elastic bayonet 30 cooperate to prevent the intermediate support body 100 from being closed to the front side support body along the moving direction. The hinge rod 110 on the rear side of the intermediate support body 100 along the direction of closing is correspondingly provided with an arc-shaped pressing rod 112, so The arc-shaped pressing bar 112 and the arc-shaped card 111 are misplaced. When the arc-shaped pressing bar 112 closes to the middle support body, the arc-shaped pressing bar 112 presses the elastic bayonet 30 downward to release the arc-shaped card 111 and the elastic bayonet 30. Cooperate, the middle support body 100 continues to close up to the front side support body.

The above structure ensures the orderly contraction of the long rows of chairs one by one. In order to realize the one-by-one deployment at the same time, the present invention also adds a structure for orderly deployment one by one to the structure of the arc-shaped pressing rod 112 and the arc-shaped card 111 . The specific design is as follows:

The intermediate support body 100 is also provided with a second elastic bayonet 40 opposite to the elastic bayonet 30 , and the upper end of the arc-shaped card 111 is provided with a lower end for abutting against the second elastic bayonet 40 so that the second elastic bayonet 40 Shrinking tapered protrusion 1111, the upper end of the arc-shaped pressing rod 112 is provided with a notch 1120, when the arc-shaped card is closed, the arc-shaped card releases the oppression of the second elastic bayonet 40, and the lower end of the second elastic bayonet 40 The rebound is inserted into the notch 1120 of the arc pressure rod.

When unfolding, only when the tapered protrusion 1111 on the upper end of the arc-shaped card 111 shrinks the second elastic detent 40, can the second elastic detent 40 inserted into the notch 1120 be lifted up, thereby realizing unfolding one by one.

Such a design makes the entire long row of chairs form a unit, which can easily realize the fixation, compression, and movement of the long row of chairs, which is convenient for maintenance and replacement, and can also be combined with electricity to realize automatic control.

Embodiment 2: A kind of compressible mobile long row table

As shown in Figure 6, it is a compressible and movable long row table applied in the present invention. The support volume of the compressible and movable long row table is the same as that of Embodiment 1. It is different from the long row of chairs. Because the overall structure of the long rows of tables is different, the desktop 50 of the present invention has two layers, the upper support panel and the lower support panel are connected through a connecting rod, the two ends of the connecting rod are hinged with the two support panels, and the lower support panel The lower end surface is connected with the push rod 140 .

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (6)

1. A compressible mobile push-pull device, comprising support bodies vertically arranged at intervals, a pair of foldable hinge rods are arranged at the same height between adjacent support bodies, and the two ends of the hinge rods are hinged with the support bodies, its features The middle support body between the front and rear support bodies is longitudinally provided with elastic detents, and the front hinge rod of the intermediate support body along the closing direction is provided with arc-shaped cards that cooperate with the elastic detents. A notch is provided at the end of the shaped card to cooperate with the end of the elastic bayonet to prevent the intermediate support body from being closed to the front side support body along the moving direction. The arc-shaped pressing bar and the arc-shaped card are misplaced. When the arc-shaped pressing bar is closed to the middle support body, the arc-shaped pressing bar presses the elastic bayonet downward to release the arc-shaped card from the elastic bayonet. The middle support The body continues to close up to the front side support body. 2. A compressible and movable push-pull device according to claim 1, the intermediate support body is also provided with a second elastic detent opposite to the elastic detent, and the upper end of the arc-shaped card is provided for resisting The lower end of the top second elastic bayonet makes the second elastic bayonet contract. The upper end of the arc-shaped pressing rod is provided with a notch. When the arc-shaped card is closed, the arc-shaped card releases the second elastic bayonet. Pressed, the lower end of the second elastic bayonet rebounds and inserts into the notch of the arc-shaped pressing rod. 3. A compressible movable push-pull device according to claim 1, a pair of hinge rod connection ends is also hinged with a push rod, the upper end of the push rod is hinged to a support panel, and one side of the support panel is hinged to the support upper body. 4. A compressible movable push-pull device according to claim 1, the support panel has two layers, the upper support panel and the lower support panel are connected through a connecting rod, and the two ends of the connecting rod are supported by the two layers. The panels are hinged. 5. A compressible movable push-pull device according to claim 1, a pair of auxiliary hinge rods is also arranged between the adjacent support bodies, the middle parts of the pair of auxiliary hinge rods are hinged with the hinge rods, and the auxiliary hinge rods The movable ends on both sides of the rod are fixed in the chute of the support body, and when the support body is closed, the movable ends on both sides of the auxiliary hinge rod move upward along the chute. 6. A compressible and movable push-pull device according to claim 1, the lower end of the supporting body is provided with rollers and bolt holes for fixing the supporting body.