CN211673309U - Director chair - Google Patents

Abstract

The utility model relates to a director chair, which comprises two parallel supporting frames and an articulated element which enables the two supporting frames to be folded by drawing close each other, wherein the articulated element comprises two groups of pipe bodies which are articulated into an X-shaped scissors connecting rod, two lower ends of the articulated element are respectively articulated and fixed with the supporting frames at the same side, two upper ends of the articulated element are respectively articulated and connected with one end of a connecting piece, and the other end of the connecting piece is articulated and fixed with the supporting frames at the same side; still slide on one of them body of scissors fork connecting rod and overlap and be equipped with a locking device and have an at least lockhole, have the elasticity round pin post that sets up with the lockhole phase-match on this locking device, this elasticity round pin post can rely on the elasticity card to go into to the lockhole in, this locking device is articulated with the one end of a linkage piece, the linkage piece other end articulates on another body of scissors fork connecting rod of the same group to solve the problem that easily leads to the tong accident to take place when current director's chair folds up.

Description

Director chair

Technical Field

The utility model relates to a folding chair field specifically is to a director's chair with locking device.

Background

Most of the existing director chairs adopt a scheme of combining a steel pipe with a sitting and leaning fabric, a metal rod piece forms a folding support, oxford fabric is used as the sitting and leaning fabric to form a sitting pad part and a backrest part, and the chair has the characteristics of being soft and comfortable to sit and being foldable along with the folding support.

Most of the existing director chairs in the market do not have a locking device, and the director chair without the locking device is easy to have the accident of clamping hands by iron pieces in the folding process, particularly, the children simultaneously apply force to the seat tube by both hands in the folding process, or the force stops continuously applying force due to insufficient force in the folding process, and the chair is not completely folded, at the moment, the seat surface can rapidly move downwards, so that the accident of clamping hands is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a director's chair to solve current director's chair and do not have locking device, easily lead to the problem that the tong accident takes place when folding up.

The specific scheme is as follows:

a director chair comprises two support frames which are arranged in parallel and an articulated element which enables the two support frames to be capable of being mutually drawn together and folded, wherein the articulated element comprises two groups of pipe bodies which are mutually articulated into an X-shaped scissor connecting rod, the two lower ends of the articulated element are respectively articulated and fixed with the support frames on the same side, the two upper ends of the articulated element are respectively articulated and connected with one end of a connecting piece, and the other end of the connecting piece is articulated and fixed with the support frames on the same side; one of the tube bodies of the scissors connecting rods is further provided with a locking device in a sliding sleeved mode and at least one locking hole, the locking device is provided with an elastic pin column which is matched with the locking hole, the elastic pin column can be clamped into the locking hole through the elastic pin column, the locking device is hinged to one end of a linkage piece, and the other end of the linkage piece is hinged to the other tube body of the scissors connecting rods in the same group.

In some embodiments, the locking device includes a main body, an inner slide block, an elastic member, and a pin, the main body has a first through hole extending along the axial direction of the tube and matching with the tube, and a blind hole radially penetrating the first through hole along the radial direction of the tube, the inner slide block is inserted into the blind hole along the radial direction of the tube and has a second through hole extending axially along the axial direction of the tube, the pin is fixedly installed in the second through hole, and a free end of the second through hole protrudes into the second through hole, the elastic member is installed in the blind hole and applies a force to the inner slide block to push the tube.

In some embodiments, the main body has a protrusion extending radially, the blind hole extends through the first through hole and into the protrusion, so that a hollow cavity is formed in the protrusion, and the elastic member is mounted in the cavity of the protrusion.

In some embodiments, the end face of the inner slide block facing the blind hole is provided with a fixing part matched with one end of the elastic element.

In some embodiments, a pin hole extending radially from the pipe body is formed in the second through hole of the inner slide block, and a pin hole arranged axially along the pipe body is formed in the outer peripheral surface of the inner slide block and is communicated with the pin hole; the bottom end of the pin is provided with a pin groove, the bottom end of the pin is inserted into the pin hole, and the pin is fixed by a pin inserted into the pin groove in the pin hole from the pin hole.

In some embodiments, the main body of the locking device further has a wing plate, the wing plate has a connecting through hole, and one end of the linkage member is hinged and fixed with the locking device through the connecting through hole.

In some embodiments, the hinged member includes two U-shaped seat tubes hinged to each other in an "X" shape, open ends of the two seat tubes are respectively disposed downward and hinged to the support frame on the same side, an upper end of the seat tube is hinged to one end of the connecting member on the same side, and when the director chair is in the unfolded state, the connecting member abuts against a bottom of the cross bar of the U-shaped seat tube.

In some embodiments, the link member and a connecting member on the same side share the same hinge hole.

The utility model provides a director's chair compares with prior art and has following advantage: the utility model provides a locking device on director's chair must unblock could realize folding up the director's chair, and the unblock must go on with folding up in step, the probability takes place for the accident just greatly reduced like this, especially child, the single hand can't be realized folding up, even can the unblock, when the single hand is folded up or because the body strength does not stop to continue the application of force, because spring deformation in the locking device, can support the round pin post in seat pipe surface, thereby produce frictional force, the seat face can not downstream rapidly yet this moment, thereby can avoid the tong occurence of failure.

Drawings

Figure 1 shows a schematic view of a director's chair in a deployed state.

Figure 2 shows a schematic view of the support stand.

Fig. 3 shows an exploded view of the locker.

Fig. 4 shows a schematic view of the body of the locker.

Fig. 5 shows a schematic view of the inner slide of the locker.

Fig. 6 shows a schematic view of the inner slide and pin of the locker.

Figure 7 shows a schematic view of the director's chair in a semi-folded state.

Figure 8 shows a schematic view of the director's chair in a fully folded state.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

The present invention provides a director's chair with a locking device, referring to fig. 1-8, the director's chair comprises two support frames 10 arranged in parallel and an "X" shaped hinge 20, the two support frames 10 at two sides are hinged with each other through an "X" shaped hinge 20, so that the two support frames 10 can be folded close to each other.

In the present embodiment, only one specific structure of the supporting frame is provided, but the present embodiment is not limited thereto, and other existing structures having the same function are also applicable thereto, and the supporting frame 10 in the present embodiment is composed of a side frame tube 11 and a supporting tube 12. The side frame tube 11 is a tube body bent into a substantially b-shaped structure, and a foot cover 13 is disposed at a rounded front end of the side frame tube 11. The lower end of the supporting tube 12 is fixedly connected with the lower end of the side frame tube 11, the upper end of the supporting tube 12 is fixedly connected with the upper end of the side frame tube 11, and the supporting tube 11 plays a supporting role.

The hinge 20 may be formed by two sets of scissor links hinged to each other in an "X" shape, or may be formed by the solution adopted in this embodiment. Specifically, the hinged member 20 in this embodiment is formed by hinging two U-shaped seat tubes 21 into an X shape, the open ends of the two seat tubes 21 are respectively arranged towards the left lower side and the right lower side and are hinged and fixed with the side frame tubes 11 on the same side, the middle upper end of the seat tube 21 is hinged with one end of the connecting member 22 on the same side, and the other end of the connecting member 22 is hinged with the side frame tubes 11 on the same side, so that the two support frames 10 can be folded and drawn together in opposite directions. Compared with the hinged part 20 formed by two mutually hinged X-shaped rod bodies, the two U-shaped seat tubes 21 adopted in the embodiment are mutually hinged into an X shape, the upper ends of the two groups of rod bodies are connected, and when the director chair is unfolded, the connecting part 22 is abutted against the bottom of the cross rod of the U-shaped seat tube 21, so that the stability of the director chair after being unfolded can be improved.

One of the seat tubes 21 of the hinge member 20 is sleeved with a locking device 30, the locking device 30 is hinged to one end of a link member 40, and the other end of the link member 40 is hinged to a connecting member 22 of the other seat tube 21 by sharing the same hinge hole.

Specifically, referring to fig. 1-6, the locker 30 includes a main body 31, an inner slider 32, a spring 33, a pin 34, and a pin 35. The main body 31 has a first through hole 310 extending axially along the body of the seat tube 21, and the first through hole 310 is matched with the body of the seat tube 21, so that the main body 31 can be sleeved on the body of the seat tube 21 and can slide on the body of the seat tube 21. The main body 31 has a protruding portion 311 extending along the radial direction of the body of the seat tube 21, and the main body 31 also has a blind hole 312 extending along the radial direction of the body of the seat tube 21, wherein the blind hole 312 penetrates the first through hole 310 along the radial direction of the body of the seat tube 21 and extends into the protruding portion 311, so that a hollow inner cavity is formed in the protruding portion 311.

The inner slide 32 is a cylinder matched with the blind hole 312, and is inserted into the blind hole 312 along the radial direction of the body of the seat tube 21, and has a second through hole 320 axially extending from the body of the seat tube 21, and the first through hole 310 is matched with the body of the seat tube 21, so that the body of the seat tube 21 can pass through the second through hole 320. The end surface of the inner slide block 32 facing the convex part 311 is provided with a convex column 321 which is arranged in an inward sinking way, and one end of the spring 33 is sleeved on the convex column 321 to play a stable effect; the other end of the spring 33 abuts against the bottom of the cavity of the boss 311. The protrusion 311 is disposed in the embodiment to facilitate the pressing force of the locking device 30 when in use, and the hollow cavity therein provides a deformation distance for the spring to deform.

The second through hole 320 of the inner slide block 32 is also provided with a pin 34 arranged along the radial direction of the tube body of the seat tube 21, and the free end of the pin 34 protrudes into the second through hole 320. The pin 34 may be fixedly mounted in the second through hole 320 by a threaded connection, an interference fit, or the like. However, in order to facilitate the assembly of the pin 34, in this embodiment, a pin hole 322 extending in the radial direction of the body of the box pin 21 is formed in the second through hole 320 of the inner slide 32, and a pin hole 323 extending in the axial direction of the body of the box pin 21 is formed in the outer peripheral surface of the inner slide 32, and the pin hole 323 communicates with the pin hole 322. The fixed end of the pin 34 has a pin groove 340, the fixed end of the pin 34 is inserted into the pin hole 322, and the pin 35 is inserted into the pin groove 340 in the pin hole 322 from the pin hole 323, so that the pin 34 is fixedly assembled to the inner slide 32.

The seat tube 21 is provided with a lock hole 210 matching with the pin 34, and the free end of the pin 34 can extend into the lock hole 210, so that the locking device 30 is fixed on the seat tube 21.

When the inner slide block 32 of the locking device 30 is pressed, the spring 33 is extruded to deform, the inner slide block 32 moves towards the inner cavity of the protruding part 311 as a whole, the pin 34 is separated from the lock hole 210 on the seat tube 21 to realize unlocking, and the locking device 30 can slide on the seat tube 21, so that the director chair can be folded; on the contrary, when the chair is unfolded, the main body 31 and the inner slide block 32 slide on the seat tube, and when the chair reaches the set position of the lock hole 210, the elastic force of the spring 33 pushes out the inner slide block 32 and simultaneously locks the pin 34 into the lock hole 210, thereby realizing locking.

The locking device on the director's chair in this embodiment must be unlocked to fold the director's chair, and unlocking and folding must be performed synchronously, so that the operation greatly reduces the probability of accidents, especially for children, folding cannot be performed with one hand, even if unlocking is possible, the force application is stopped when folding is performed with one hand or because of insufficient physical strength, the pin is pressed against the surface of the seat tube due to the deformation of the spring in the locking device, thereby generating friction, and the seat surface cannot move downwards rapidly, thereby avoiding the occurrence of hand clamping accidents.

In some embodiments, the main body 31 of the locking device 30 further has a wing 313 having a coupling through hole 314, and one end of the link 40 contacts the wing 313 of the main body 31 and is hingedly fixed to the locking device 30 through the coupling through hole 314 to facilitate the assembly of the link 40 to the locking device 30.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. The utility model provides a director chair, includes two support frames of two parallel arrangement to and so that two support frames can draw close each other and the articulated elements of folding up, its characterized in that: the articulated elements comprise two groups of scissor connecting rods, the two groups of tube bodies are mutually articulated into an X shape, the two lower ends of the articulated elements are respectively articulated and fixed with the supporting frames on the same side, the two upper ends of the articulated elements are respectively articulated and connected with one end of a connecting piece, and the other end of the connecting piece is articulated and fixed with the supporting frames on the same side; one of the tube bodies of the scissors connecting rods is further provided with a locking device in a sliding sleeved mode and at least one locking hole, the locking device is provided with an elastic pin column which is matched with the locking hole, the elastic pin column can be clamped into the locking hole through the elastic pin column, the locking device is hinged to one end of a linkage piece, and the other end of the linkage piece is hinged to the other tube body of the scissors connecting rods in the same group.

2. A director's chair according to claim 1, wherein: the locking device comprises a main body, an inner sliding block, an elastic piece and a pin, wherein a first through hole which is axially extended along the pipe body and is matched with the pipe body is formed in the main body, a blind hole which radially penetrates through the first through hole along the pipe body is formed in the main body, the inner sliding block is radially inserted into the blind hole along the pipe body, a second through hole which is axially extended along the pipe body is formed in the inner sliding block, the pin is fixedly installed in the second through hole, the free end of the second through hole protrudes into the second through hole, and the elastic piece is installed in the blind hole and applies force pushing the inner sliding block to the pipe body.

3. A director chair according to claim 2, wherein: the main body is provided with a bulge part which extends along the radial direction, the blind hole penetrates through the first through hole and extends into the bulge part, so that a hollow inner cavity is formed in the bulge part, and the elastic piece is arranged in the inner cavity of the bulge part.

4. A director chair according to claim 2, wherein: the end face, facing the blind hole, of the inner sliding block is provided with a fixing part which is matched with one end of the elastic piece.

5. A director chair according to claim 2, wherein: a pin hole extending radially from the pipe body is formed in the second through hole of the inner sliding block, a pin hole arranged axially along the pipe body is formed in the peripheral surface of the inner sliding block, and the pin hole is communicated with the pin hole; the bottom end of the pin is provided with a pin groove, the bottom end of the pin is inserted into the pin hole, and the pin is fixed by a pin inserted into the pin groove in the pin hole from the pin hole.

6. A director chair according to claim 2, wherein: the main body of the locking device is also provided with a wing plate, the wing plate is provided with a connecting through hole, and one end of the linkage piece is hinged and fixed with the locking device through the connecting through hole.

7. A director's chair according to claim 1, wherein: the articulated elements comprise two U-shaped seat pipes which are articulated into an X shape, the open ends of the two seat pipes are respectively arranged downwards and are articulated and fixed with the supporting frames at the same side, the upper ends of the seat pipes are articulated with one ends of the connecting pieces at the same side, and when the director chair is in an unfolding state, the connecting pieces are abutted against the bottoms of the cross rods of the U-shaped seat pipes.

8. A director's chair according to claim 1, wherein: the linkage piece and a connecting piece on the same side share the same hinge hole.

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