CN201097786Y

CN201097786Y - Folding structure of leg tube

Info

Publication number: CN201097786Y
Application number: CNU200720008163XU
Authority: CN
Inventors: 张少华; 柳杰泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-04
Filing date: 2007-09-04
Publication date: 2008-08-13
Anticipated expiration: 2017-09-04

Abstract

The utility model discloses a folding structure for a leg pipe, mainly comprising a connecting piece, a wrench, a lock sheet and a slide carriage, wherein, the upper end of the leg pipe is pivoted under a main body; the inside of the leg pipe is provided with the slide carriage; a chute is arranged on the slide carriage; the upper end of the connecting piece which is deviated from the upper end of the leg pipe is also pivoted under the main body; the lower end of the connecting piece is provided with a slide pin which is slidably inserted into the chute of the slide carriage; the lock sheet is vertically arranged on the slide carriage in the form of a lever; an offsetting spring is arranged between the upper end of the lock sheet and the leg pipe; the lower end of the lock sheet is provided with a clamping hook which can be turned up to lock the slide pin under the action of the offsetting spring; the wrench is pivoted on the slide carriage and provided with a handle and a coupled end which is connected between upper ends of the lock sheet through a pivot. The folding structure has the advantages of convenient folding of the leg pipe and firm unfolding, supporting and positioning.

Description

The folding structure of leg pipe

Technical field

The utility model relates to a kind of leg pipe, is applicable to the product of desire folding table legs such as desk, ladder, shelf, terraced leg, frame leg, and is special relevant with the folding structure of leg pipe.

Background technology

Usually, the transportation and the collection of desk, ladder, shelf etc. for convenience, but its leg pipe design can be folding.And the folding structure of these leg pipes is of all kinds, when various folding structures all can or not use in transportation such as desk, ladder, shelf, the folding of leg pipe is got up, to dwindle the volume of product, convenient transportation and collection.But all there is the unstable phenomenon of support fixation in numerous foldable leg pipes launching use, cause main body in the use (desktop, terraced body, support body) to rock, and directly influence the use of product.Therefore, the folding structure of existing leg pipe all remains further to be improved.

The utility model content

The purpose of this utility model is to provide a kind of folding structure of leg pipe, makes leg pipe convenient folding, launches to support firm position.

To achieve these goals, solution of the present utility model is:

The folding structure of leg pipe mainly is made up of brace, spanner, stay and slide; The upper end of leg pipe is articulated in the below of main body; The inside of leg pipe has slide, offers chute on the slide; The upper end that the leg pipe is departed from the upper end of brace also is articulated in the below of main body, and the lower end of brace has sliding pin, and this sliding pin slides and is plugged in the chute of slide; Stay vertically props up with the lever form and is located on the slide, is provided with back-moving spring between the upper end of stay and the leg pipe, but the lower end of stay has the grab of perk pinning sliding pin under the action of reset spring of being subjected to; Spanner is pivoted on the slide, and spanner has handle and interlock end, the interlock end by the pivot interlock in the upper end of stay.

Above-mentioned slide is the member of independent moulding, slide by riveted and fixed in the leg pipe.

Also form deep-slotted chip breaker on the above-mentioned stay, the pivot of spanner interlock end is slip and is plugged in this deep-slotted chip breaker.

Above-mentioned spanner side-looking is inverted "L" shaped, and long limit is a handle, and minor face is the interlock end, and the bending place of " L " type spanner is hubbed on the slide.

The side of above-mentioned brace forms the salient point that can upon deployment spanner be pushed open, have on the spanner with launch after the breach that faces toward of brace salient point.

The below of aforementioned body has pin joint seat, and the upper end of leg pipe and brace is articulated on the pin joint seat respectively.

The grab outer rim of above-mentioned stay forms guiding brace sliding pin and snaps in the lead angle that pins in the grab.

Be connected with a connecting rod between the leg pipe that above-mentioned leg pipe is adjacent, and also be connected with a connecting rod between corresponding two spanners.

After adopting such scheme, the utility model applies to desk, ladder, in the products such as shelf, when needing to launch, the leg pipe is rotated around its upper end pivoting point, make it the lower end and main body is drawn back, along with opening of leg pipe, brace also separates with the leg pipe gradually, the sliding pin of brace lower end upwards slides in the chute of leg pipe slide, snap in the grab to sliding pin, stay under the effect of back-moving spring, lower end perk and pin sliding pin, send the sound that click is rattled away, illustrating that the leg pipe has moved puts in place, is and launches shape fully, compresses spanner again, rotation by spanner, promote stay sliding pin is pressed in the chute, at this moment, main body, brace, slide forms a stable triangle, product (desk, ladder, shelf etc.) be in the stable user mode of opening, the leg pipe supports firm position.

When needing folding, spanner pushed aside probably be 45 ° with the leg pipe and locate, make stay be in releasing orientation, the leg pipe is rotated around its upper end pivoting point, make it the lower end and draw close, along with closing up of leg pipe to main body, the sliding pin of brace lower end in the chute of slide to lower slider, close at main body below to brace, leg pipe, realize the complete folding of leg pipe, and the folding action is convenient.

Description of drawings

Fig. 1 is the user mode figure that the utility model is opened;

Fig. 2 is the action diagram that the utility model is opened spanner;

Fig. 3 is the action diagram that the utility model is packed up the leg pipe;

Fig. 4 is the state diagram after the folding of the utility model leg pipe;

Fig. 5 is the action diagram that the utility model leg pipe pulls down;

Fig. 6 is the process schematic diagram that the utility model spurs the leg pipe downwards;

Fig. 7 is the schematic diagram that the utility model is opened the leg pipe;

Fig. 8 is that the utility model compresses spanner, makes the leg pipe launch the user mode figure of location;

Fig. 9 is the structural representation of the utility model brace;

Figure 10 is the side view of the utility model brace;

Figure 11 is the structural representation of the utility model spanner;

Figure 12 is the side view of the utility model spanner;

Figure 13 is the structural representation of the utility model stay;

Figure 14 is the structural representation of the utility model slide;

Figure 15 is the side view of the utility model slide;

Figure 16 is the expansion schematic diagram of the utility model slide;

Figure 17 is the structural representation of this this utility model both legs folding.

The specific embodiment

Please cooperate shown in Figure 1ly, the folding structure that the utility model has disclosed the leg pipe is to apply in the products such as desk, ladder, shelf, realizes being connected and folding between leg pipe 10 and the product main body 20, mainly is made up of brace 1, spanner 2, stay 3 and slide 4.

Wherein, the below of main body 20 has

pin joint seat

201 and 202.

The upper end of leg pipe 10 is articulated in the pin joint seat 201 of main body 20 belows by axle 203.

Slide 4 is located at the inside of leg pipe 10, and slide 4 can be the member of independent moulding, is formed by the sheet material bending as Figure 16, as Figure 14 and shown in Figure 15, in leg pipe 10, make to seem that from the outside structure is very succinct that avoiding the folding joint to expose influences good looking appearance by riveted and fixed.Offer chute 41 on the slide 4.

The upper end that leg pipe 10 is departed from the upper end of brace 1 also is articulated in the pin joint seat 202 of main body 20 belows by axle 204.Cooperate Fig. 9 and shown in Figure 10, the lower end of brace 1 has sliding pin 11, and this sliding pin 11 slides and is plugged in the chute 41 of slide 4.The side of brace 1 forms the salient point 12 that can upon deployment spanner 2 be pushed open.

Stay 3 as shown in figure 13, be vertically to prop up by fulcrum 31 with the lever form to be located on the slide 4, be provided with back-moving spring 5 between the upper end of stay 3 and the leg pipe 10, the lower end of stay 3 has grab 32, and grab 32 outer rims form lead angle 33, when the sliding pin 11 of brace 1 upwards slides into the below of stay 3, be subjected to lead angle 33 guidings, sliding pin 11 snaps in the grab 32, and is subjected to back-moving spring 5 effects down, make the lower end perk of stay 3, pin sliding pin 11.Also form deep-slotted chip breaker 34 on the stay 3.

Spanner 2 is pivoted by axle 21 on the slide 4, and spanner 2 has handle 22 and interlock end 23, cooperates shown in Figure 11,12, among this embodiment, spanner 2 side-lookings are inverted "L" shaped, and long limit is a handle 22, minor face is an interlock end 23, and the bending place of " L " type spanner 2 is hubbed on the slide 4 by axle 21.Interlock end 23 passes through pivot 24 interlocks in the upper end of stay 3.The pivot 24 of interlock end 23 is slip and is plugged in the deep-slotted chip breaker 34 of stay 3.Also have on the spanner 2 with launch after the breach 25 that faces toward of brace 1 salient point 12.

The utility model applies in the products such as desk, ladder, shelf.When need launching, as shown in Figure 5, leg pipe 10 is rotated around its upper shaft 203, make it the lower end and main body 20 is drawn back; Along with opening of leg pipe 10, as shown in Figure 6, brace 1 rotates around its upper shaft 204, brace 1 slowly draws back spanner 2 by the salient point 12 of its side, spanner 2 is separated with leg pipe 10 gradually, the sliding pin 11 of brace 1 lower end upwards slides in the chute 41 of leg pipe 10 slides 4, as shown in Figure 7, snaps in the grab 32 to sliding pin 11, under the effect of back-moving spring 5, the sound that click is rattled away is sent in stay 3 lower end perks and pin sliding pin 11, and leg pipe 10 is and launches shape fully, again as shown in Figure 8, compress spanner 2,, promote stay 3 sliding pin 11 is pressed in the chute 41 by the rotation of spanner 2, at this moment, main body 20, brace 1, slide 4 forms a stable triangle, makes desk, ladder, shelf etc. are in the stable user mode of opening, and leg pipe 10 supports firm position.

When needing folding, as shown in Figure 1, spanner 2 pushed aside probably be 45 ° with leg pipe 10 and locate, as shown in Figure 2, spanner 2 hangs on the salient point 12 of brace 1, and make stay 3 be in releasing orientation this moment, as shown in Figure 3, leg pipe 10 is rotated around its upper shaft 203, the lower end of leg pipe 10 is drawn close to main body 20, and along with closing up of leg pipe 10, the sliding pin 11 of brace 1 lower end is thrown off stay 3, in the chute 41 of slide 4 to lower slider, brace 1 rotates around its upper shaft 204, as shown in Figure 4, and to brace 1, leg pipe 10 closes at main body 20 belows, realize the complete folding of leg pipe, and the folding action is convenient.

The utility model is installed between leg pipe 10 and the main body 20, every leg pipe 10 uses one group of folding structure, during use, can fold respectively by single leg, also can be as trying hard to shown in 17, between two adjacent leg pipes 10, be connected with a connecting rod 6, and also be connected with a connecting rod 7 between corresponding two spanners 2, like this, pulling connecting rod 6 can drive 10 actions of two leg pipes simultaneously, pull connecting rod 7 and can drive 2 actions of two spanners simultaneously, realize both legs folding simultaneously and expansion, use more convenient.

Claims

1, the folding structure of leg pipe is characterized in that: mainly be made up of brace, spanner, stay and slide; The upper end of leg pipe is articulated in the below of main body; The inside of leg pipe has slide, offers chute on the slide; The upper end that the leg pipe is departed from the upper end of brace also is articulated in the below of main body, and the lower end of brace has sliding pin, and this sliding pin slides and is plugged in the chute of slide; Stay vertically props up with the lever form and is located on the slide, is provided with back-moving spring between the upper end of stay and the leg pipe, but the lower end of stay has the grab of perk pinning sliding pin under the action of reset spring of being subjected to; Spanner is pivoted on the slide, and spanner has handle and interlock end, the interlock end by the pivot interlock in stay.

2, the folding structure of leg pipe according to claim 1 is characterized in that: slide is the member of independent moulding, slide by riveted and fixed in the leg pipe.

3, the folding structure of leg pipe according to claim 1 is characterized in that: also form deep-slotted chip breaker on the stay, the pivot of spanner interlock end is slip and is plugged in this deep-slotted chip breaker.

4, the folding structure of leg pipe according to claim 1, it is characterized in that: the spanner side-looking is inverted "L" shaped, and long limit is a handle, and minor face is the interlock end, and the bending place of " L " type spanner is hubbed on the slide.

5, the folding structure of leg pipe according to claim 1 is characterized in that: the side of brace forms the salient point that can upon deployment spanner be pushed open, have on the spanner with launch after the breach that faces toward of brace salient point.

6, the folding structure of leg pipe according to claim 1, it is characterized in that: the below of main body has pin joint seat, and the upper end of leg pipe and brace is articulated on the pin joint seat respectively.

7, the folding structure of leg pipe according to claim 1 is characterized in that: the grab outer rim of stay forms guiding brace sliding pin and snaps in the lead angle that pins in the grab.

8, the folding structure of leg pipe according to claim 1 is characterized in that: be connected with a connecting rod between the leg pipe that the leg pipe is adjacent, and also be connected with a connecting rod between corresponding two spanners.