Folding chair with foot rest

Abstract

The utility model relates to a folding chair with a foot rest, which comprises a chair surface and a folding chair frame capable of being folded and gathered, and the folding chair frame comprises a left chair frame and a right chair frame which are symmetrically arranged left and right; the folding chair frame comprises a left chair frame and a right chair frame, each of the left chair frame and the right chair frame comprises a front foot rod and a seat rod, the front foot rods and the seat rods in the chair frames are arranged in a crossed manner and are mutually hinged, the folding chair frame is characterized by further comprising a folding foot rest, the folding foot rest comprises a left foot rest and a right foot rest which are arranged in a bilateral symmetry manner, and each of the left foot rest and the right foot rest comprises a foot rest rod, a front supporting rod and a rear supporting rod. The folding chair adopts the synchronous folding design of the foot rest and the folding chair, so that not only can the feet of a user be kept comfortable and not easy to fatigue, but also the portability of the foot rest is improved, and the folding chair has the advantages of simple structure, reasonable design, low cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to outdoor leisure goods field especially a folding chair with foot rest frame. BACKGROUND

[0002] Folding chair is widely used in outdoor activities, temporary rest and other scenes because of its portability and space-saving characteristics. The Chinese invention patent specification CN111436785A discloses a folding chair, which realizes the function of quickly gathering and folding the chair frame by optimizing the folding mechanism, and significantly improves the portability.

[0003] But the folding chair is limited to the optimization of the folding chair, and in long-term use, the lack of support for the user's legs can easily lead to fatigue. In addition, although there are some independent foot rest function products on the market, they need to be carried and installed separately, which is contrary to the design concept of portability of the folding chair. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a folding chair with a foot rest frame and a folding chair that are designed to fold synchronously, thereby not only helping users to keep their feet comfortable and not easily tired, but also improving the portability of the foot rest frame, and having the advantages of simple structure, reasonable design, low cost and the like.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A folding chair with a foot rest frame, comprising a seat, a foldable and foldable folding chair frame, the folding chair frame comprising left and right chair frames arranged symmetrically; the left and right chair frames each comprise a front leg and a seat rod, and the front leg and the seat rod in each chair frame are arranged in a cross shape and are hingedly connected to each other, the folding chair frame further comprises a folding foot rest frame, the folding foot rest frame comprises left and right foot rest frames arranged symmetrically, the left and right foot rest frames each comprise a foot rest rod, a front support rod and a rear support rod; the rear end of the foot rest rod in the left and right foot rest frames is hingedly connected to the front end of the seat rod in the left and right chair frames, respectively, the front support rod in the left and right foot rest frames is arranged in a cross shape with the rear support rod in the left and right foot rest frames and is hingedly connected to each other, the upper end of the rear support rod in the left and right foot rest frames is hingedly connected to the foot rest rod in the left and right foot rest frames, respectively, the upper end of the front support rod in the left and right foot rest frames is hingedly connected to the seat rod in the left and right chair frames, respectively, the bottom end of the rear support rod in the left and right foot rest frames is hingedly connected to the bottom end of the front leg in the left and right chair frames, respectively, the seat rod in the left and right chair frames forms a four-bar mechanism with the foot rest rod, the rear support rod and the front support rod in the left foot rest frame and the foot rest rod, the rear support rod and the front support rod in the right foot rest frame, respectively, when the folding chair frame is folded, the seat rod in the left and right chair frames drives the foot rest rod, the front support rod and the rear support rod in the corresponding four-bar mechanism to fold together, respectively.

[0007] Further, the folding footrest further comprises a first folding rod and a second folding rod, the first folding rod and the second folding rod are arranged in cross and hinged to each other, upper ends of the first folding rod and the second folding rod are respectively hinged to the footrest rod in the left or right footrest, lower ends of the first folding rod and the second folding rod are respectively hinged to the lower end of the front support rod in the left or right footrest.

[0008] Further, the folding chair frame further comprises a third folding rod and a fourth folding rod, the third folding rod and the fourth folding rod are arranged in cross and hinged to each other, upper ends of the third folding rod and the fourth folding rod are respectively hinged to the seat rod in the left or right chair frame, lower ends of the third folding rod and the fourth folding rod are respectively hinged to the lower end of the front leg rod in the left or right chair frame.

[0009] Further, the left or right footrest further comprises a first hinged frame for hinging the upper end of the rear support rod in the left or right footrest to the footrest rod in the left or right footrest, the upper end of the first folding rod and the second folding rod are respectively hinged to the first hinged frame in the left or right footrest.

[0010] Further, the left or right footrest further comprises a second hinged frame for hinging the upper end of the front support rod in the left or right footrest to the seat rod in the left or right chair frame, the upper end of the third folding rod and the fourth folding rod are respectively hinged to the second hinged frame in the left or right footrest.

[0011] Further, the left or right footrest further comprises a third hinged frame for hinging the lower end of the rear support rod in the left or right footrest to the lower end of the front leg rod in the left or right chair frame, the lower end of the third folding rod and the fourth folding rod are respectively hinged to the third hinged frame in the left or right footrest.

[0012] Further, the left or right footrest further comprises a fourth hinged frame for hinging the front end of the seat rod in the left or right chair frame to the rear end of the footrest rod in the left or right footrest, and each fourth hinged frame comprises a first hinged part and a second hinged part hinged to the first hinged part, the first hinged part and the second hinged part are respectively sleeved on the corresponding rear end of the footrest rod and the front end of the seat rod.

[0013] Further, the bottom end of the front support rod in the left or right footrest is sleeved with an anti-skid sleeve.

[0014] Further, the left and right chair frames each comprise a back rod, and the folding chair frame further comprises left and right folding mechanisms arranged symmetrically left and right and a pull handle, the left and right folding mechanisms each comprise an upper pull rod and a lower pull rod, inner ends of the upper pull rods of the left and right folding mechanisms are hingedly connected to two sides of an upper end of the pull handle respectively, outer ends of the upper pull rods of the left and right folding mechanisms are hingedly connected to the back rods of the left and right chair frames respectively, inner ends of the lower pull rods of the left and right folding mechanisms are hingedly connected to two sides of a lower end of the pull handle respectively, outer ends of the lower pull rods of the left and right folding mechanisms are slidably connected to the back rods of the left and right chair frames respectively, and the pull handle is moved up and down to drive the left and right chair frames to be relatively close to each other to be in a folded state or to be relatively far away from each other to be in an unfolded state through the left and right folding mechanisms.

[0015] Further, the left and right chair frames each further comprise a rear leg rod and a handrail, rear ends of the handrails of the left and right chair frames are hingedly connected to middle and lower portions of the back rods of the left and right chair frames respectively, front ends of the handrails of the left and right chair frames are respectively provided with a gear plate, each gear plate is provided with at least two limiting grooves distributed along a front and back direction of the gear plate and a sliding groove connected with the limiting grooves, and hinge pin shafts of the front and rear supporting legs of the left and right chair frames are respectively inserted into the sliding grooves of the corresponding gear plates and can be moved in the sliding grooves to be clamped into any limiting groove.

[0016] Compared with the prior art, the folding chair has the following beneficial effects:

[0017] The foot rest frame of the folding chair is designed very reasonably, the seat rods in the left and right chair frames form four-bar mechanisms with the foot rest rods, rear supporting rods and front supporting rods in the left foot rest frame and the foot rest rods, rear supporting rods and front supporting rods in the right foot rest frame respectively, and the seat rods in the left and right chair frames drive the foot rest rods, front supporting rods and rear supporting rods in the corresponding four-bar mechanisms to be folded together when the folding chair frame is folded, thereby being beneficial to keeping the feet of the user comfortable and not easy to be tired, improving the portability of the foot rest frame, and having the advantages of simple structure, reasonable design, low cost and the like. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the folding chair of the utility model.

[0019] Figure 2 is a perspective view of the unfolded folding chair frame of the utility model.

[0020] Figure 3 is a front view of the unfolded folding chair frame of the utility model.

[0021] Figure 4 is a perspective view of the folding chair frame of the utility model in a folding process state.

[0022] Figure 5 is a perspective view of the folding chair frame of the utility model in a folding process state. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0024] like Figures 1 to 5 As shown, a folding chair with a leg rest includes a seat 1 and a foldable chair frame 2. The folding chair frame 2 includes left and right chair frames 3 and 4 arranged symmetrically. The left and right chair frames 3 and 4 each include front leg posts 31 and 41 and seat posts 32 and 42, and the front leg posts 31 and 41 and the seat posts 32 and 42 in each chair frame are arranged crosswise and hinged to each other. The folding chair frame 2 also includes a folding footrest 5. The folding footrest 5 includes left and right footrests 51 and 52 arranged symmetrically. Each of the left and right footrests 51 and 52 includes footrest rods 511 and 521, front support rods 512 and 522, and rear support rods 513 and 523. The rear ends of the footrest rods 511 and 521 in the left and right footrests 51 and 52 are hinged to the front ends of the seat rods 32 and 42 in the left and right chair frames 3 and 4, respectively. The front support rods 512 and 522 in the left and right footrests 51 and 52 are respectively arranged crosswise and hinged to each other. The upper ends of the rear support rods 513 and 523 in the left and right footrests 51 and 52 are respectively hinged to the footrest rods 511 and 521 in the left and right footrests 51 and 52. The upper ends of the front support rods 512 and 522 in the legs 51 and 52 are hinged to the seat rods 32 and 42 in the left and right chair frames 3 and 4, respectively. The bottom ends of the rear support rods 513 and 523 in the left and right chair rests 51 and 52 are hinged to the bottom ends of the front leg rods 31 and 41 in the left and right chair frames 3 and 4, respectively. The seat rods 32 and 42 in the left and right chair frames 3 and 4 form a four-bar linkage with the footrest rod 511, rear support rod 513, and front support rod 512 in the left chair rest 51 and the footrest rod 521, rear support rod 523, and front support rod 522 in the right chair rest 52, respectively. When the folding chair frame 2 is folded, the seat rods 32 and 42 in the left and right chair frames 3 and 4 respectively drive the corresponding four-bar linkages of footrest rods 511, 521, front support rods 512, 522, and rear support rods 513 and 523 to fold together.

[0025] As described above, the folding leg support 5 also includes a first folding rod 53 and a second folding rod 54. The first folding rod 53 and the second folding rod 54 are arranged in a cross configuration and are hinged to each other. The upper ends of the first folding rod 53 and the second folding rod 54 are respectively hinged to the leg supports 511 and 521 in the left and right leg supports 51 and 52, respectively. The lower ends of the first folding rod 53 and the second folding rod 54 are respectively hinged to the lower ends of the front support rods 522 and 512 in the right and left leg supports 52 and 51, respectively. This helps to improve the overall rigidity of the folding chair and make the folding chair more stable.

[0026] As mentioned above, the folding chair frame 2 further comprises a third folding rod 33 and a fourth folding rod 43, the third folding rod 33 and the fourth folding rod 43 are cross arranged and hinged to each other, the upper ends of the third folding rod 33 and the fourth folding rod 43 are respectively hinged to the seat rods 32, 42 in the left and right chair frames 3, 4, and the lower ends of the third folding rod 33 and the fourth folding rod 34 are respectively hinged to the lower ends of the front leg rods 41, 31 in the right and left chair frames 4, 3.

[0027] As mentioned above, the left and right footrest frames 51, 52 each further comprise a first hinged frame 514, 524 for hinging the upper ends of the rear support rods 513, 523 in the left and right footrest frames 51, 52 to the footrest rods 511, 521 in the left and right footrest frames 51, 52, respectively, and the upper ends of the first folding rod 53 and the second folding rod 54 are respectively hinged to the first hinged frames 514, 524 in the left and right footrest frames 51, 52. The local stress concentration on the footrest rods 511, 521 is reduced by the first hinged frames 514, 524, thereby prolonging the service life of the footrest rods 511, 521.

[0028] As mentioned above, the left and right footrest frames 51, 52 each further comprise a second hinged frame 515, 525 for hinging the upper ends of the front support rods 512, 522 in the left and right footrest frames 51, 52 to the seat rods 32, 42 in the left and right chair frames 3, 4, respectively, and the upper ends of the third folding rod 33 and the fourth folding rod 43 are respectively hinged to the second hinged frames 515, 525 in the left and right footrest frames 51, 52. The local stress concentration caused by the direct hinging of the seat rods 32, 42 is reduced by the second hinged frames 515, 525, thereby prolonging the service life of the seat rods 32, 42.

[0029] As mentioned above, the left and right footrest frames 51, 52 each further comprise a third hinged frame 516, 526 for hinging the lower ends of the rear support rods 513, 523 in the left and right footrest frames 51, 52 to the lower ends of the front leg rods 31, 41 in the left and right chair frames 3, 4, respectively, and the lower ends of the third folding rod 33 and the fourth folding rod 43 are respectively hinged to the third hinged frames 526, 516 in the right and left footrest frames 52, 51. The local stress concentration caused by the direct hinging of the rear support rods 513, 523 and the front leg rods 31, 41 is reduced by the third hinged frames 526, 516, thereby prolonging the service life of the rear support rods 513, 523 and the front leg rods 31, 41.

[0030] As described above, the left and right foot rests 51, 52 each further comprise a fourth hinged frame 517, 527 for hingedly connecting the front end of the seat rod 32, 42 in the left and right chair frames 3, 4 respectively with the rear end of the foot rest rod 511, 521 in the left and right foot rests 51, 52 respectively, and each fourth hinged frame 517, 527 comprises a first hinged part 5171, 5271 and a second hinged part 5172, 5272 hingedly connected with the first hinged part 5171, 5271, and the first hinged part 5171, 5271 and the second hinged part 5172, 5272 are respectively sleeved on the rear end of the foot rest rod 511, 521 and the front end of the seat rod 32, 42 corresponding thereto. The fourth hinged frame 517, 527 reduces the local stress concentration caused by the direct hinging of the seat rod 32, 42 and the foot rest rod 511, 521, thereby prolonging the service life of the seat rod 32, 42 and the foot rest rod 511, 521.

[0031] As described above, the bottom end of the front support rod 512, 522 in the left and right foot rests 51, 52 is sleeved with an anti-skid sleeve 518, 528, thereby increasing the friction coefficient of the contact surface and making the folding chair more stable.

[0032] As described above, the left and right chair frames 3, 4 each comprise a back rod 34, 44, and the folding chair frame 2 further comprises left and right folding mechanisms 35, 45 arranged symmetrically left and right and a pulling part 36, and each of the left and right folding mechanisms 35, 45 comprises an upper pull rod 351, 451 and a lower pull rod 352, 452, the inner end of the upper pull rod 351, 451 of the left and right folding mechanisms 35, 45 is respectively hingedly connected with the upper end of both sides of the pulling part 36, the outer end of the upper pull rod 351, 451 of the left and right folding mechanisms 35, 45 is respectively hingedly connected with the back rod 34, 44 of the left and right chair frames 3, 4, the inner end of the lower pull rod 352, 452 of the left and right folding mechanisms 35, 45 is respectively hingedly connected with the lower end of both sides of the pulling part 36, and the outer end of the lower pull rod 352, 452 of the left and right folding mechanisms 35, 45 is respectively slidingly connected with the back rod 34, 44 of the left and right chair frames 3, 4, and the upward and downward movement of the pulling part 36 drives the left and right chair frames 3, 4 to relatively approach each other to present a folding state or relatively move away from each other to present an unfolded state through the left and right folding mechanisms 35, 45.

[0033] As described above, the left and right chair frames 3, 4 each further comprise a rear leg 37, 47 and an armrest 38, 48, the rear end of the armrest 38, 48 on the left and right chair frames 3, 4 is respectively hinged to the middle lower part of the back rod 34, 44 of the left and right chair frames 3, 4, and the front end of the armrest 38, 48 of the left and right chair frames 3, 4 is respectively provided with a gear plate 39, 49, each gear plate 39, 49 is provided with at least two limiting grooves 391, 491 distributed along the front and rear direction and a sliding groove 392, 492 communicating with each limiting groove, and the hinge pin of the front leg 31, 41 and the rear leg 37, 47 of the left and right chair frames 3, 4 is respectively inserted into the sliding groove 392, 492 on the corresponding gear plate 39, 49 and can move in the sliding groove 392, 492 and be clamped into any limiting groove 391, 491, so as to realize the adjustment of the folding chair backrest angle.

[0034] The synchronous folding or unfolding principle of the folding chair and the foot rest frame is as follows:

[0035] When the upper and lower movement of the lifting part 36, the left and right chair frames 3, 4 are relatively close to the folding state or relatively far away from the unfolded state through the left and right folding mechanisms 35, 45; at the same time, the left and right chair frames 3, 4 are driven to fold or unfold in the front and rear directions through the actions of the third folding rod 33 and the fourth folding rod 43; in addition, the seat rod 32, 42 drives the foot rest rods 511, 521, the front support rods 512, 522 and the rear support rods 513, 523 in the foot rest frame 5 to fold or unfold in the left and right directions and the front and rear directions, so as to realize the synchronous folding or unfolding of the folding chair and the foot rest frame 5.

[0036] The above is only a preferred embodiment of the utility model, and cannot limit the scope of the utility model, that is, any simple equivalent change and modification made according to the patent application range and the utility model description content still belongs to the range covered by the utility model patent.

Claims

1. A folding chair with a footrest comprising a seat, a foldable and collapsible folding chair frame, the folding chair frame comprising left and right chair frames arranged symmetrically left and right; the left and right chair frames each comprising a front leg rod and a seat rod, and the front leg rod and the seat rod in each chair frame are arranged in a cross and are hinged to each other, characterized in that, The folding chair frame further comprises folding footrest frames, which are symmetrically arranged left and right and each comprise a footrest rod, a front support rod and a rear support rod; the rear end of the footrest rod in each of the left and right footrest frames is hingedly connected to the front end of the seat rod in the corresponding left or right chair frame; the front support rod in each of the left and right footrest frames is crosswise arranged and hingedly connected to the rear support rod in the corresponding left or right footrest frame; the upper end of the rear support rod in each of the left and right footrest frames is hingedly connected to the footrest rod in the corresponding left or right footrest frame; the upper end of the front support rod in each of the left and right footrest frames is hingedly connected to the seat rod in the corresponding left or right chair frame; the bottom end of the rear support rod in each of the left and right footrest frames is hingedly connected to the bottom end of the front leg rod in the corresponding left or right chair frame; the seat rod in each of the left and right chair frames forms a four-bar mechanism with the footrest rod, the rear support rod and the front support rod in the corresponding left footrest frame and the footrest rod, the rear support rod and the front support rod in the right footrest frame; when the folding chair frame is folded, the seat rod in each of the left and right chair frames drives the footrest rod, the front support rod and the rear support rod in the corresponding four-bar mechanism to fold together.

2. The folding chair with footrest according to claim 1, wherein: The folding footrest frame further comprises a first folding rod and a second folding rod, which are crosswise arranged and hingedly connected to each other; the upper end of the first folding rod is hingedly connected to the footrest rod in the left footrest frame, and the upper end of the second folding rod is hingedly connected to the footrest rod in the right footrest frame; the lower end of the first folding rod is hingedly connected to the lower end of the front support rod in the right footrest frame, and the lower end of the second folding rod is hingedly connected to the lower end of the front support rod in the left footrest frame.

3. The folding chair with footrest of claim 2, wherein: The folding chair frame further comprises a third folding rod and a fourth folding rod, which are crosswise arranged and hingedly connected to each other; the upper end of the third folding rod is hingedly connected to the seat rod in the left chair frame, and the upper end of the fourth folding rod is hingedly connected to the seat rod in the right chair frame; the lower end of the third folding rod is hingedly connected to the lower end of the front leg rod in the right chair frame, and the lower end of the fourth folding rod is hingedly connected to the lower end of the front leg rod in the left chair frame.

4. The folding chair with footrest of claim 3, wherein: Each of the left and right footrest frames further comprises a first hinged frame for hingedly connecting the upper end of the rear support rod in the corresponding left or right footrest frame to the footrest rod in the corresponding left or right footrest frame; the upper end of the first folding rod is hingedly connected to the first hinged frame in the left footrest frame, and the upper end of the second folding rod is hingedly connected to the first hinged frame in the right footrest frame.

5. The folding chair with footrest of claim 4, wherein: Each of the left and right footrest frames further comprises a second hinged frame for hingedly connecting the upper end of the front support rod in the corresponding left or right footrest frame to the seat rod in the corresponding left or right chair frame; the upper end of the third folding rod is hingedly connected to the second hinged frame in the left footrest frame, and the upper end of the fourth folding rod is hingedly connected to the second hinged frame in the right footrest frame.

6. The folding chair with footrest of claim 5, wherein: Each of the left and right footrest frames further comprises a third hinged frame for hingedly connecting the lower end of the rear support rod in the corresponding left or right footrest frame to the lower end of the front leg rod in the corresponding left or right chair frame; the lower end of the third folding rod is hingedly connected to the third hinged frame in the right footrest frame, and the lower end of the fourth folding rod is hingedly connected to the third hinged frame in the left footrest frame.

7. The folding chair with footrest of claim 1, wherein: Each of the left and right footrest frames further comprises a fourth hinged frame for hingedly connecting the front end of the seat rod in the corresponding left or right chair frame to the rear end of the footrest rod in the corresponding left or right footrest frame; each fourth hinged frame comprises a first hinged part and a second hinged part hingedly connected to the first hinged part; the first hinged part and the second hinged part are respectively sleeved on the rear end of the corresponding footrest rod and the front end of the seat rod.

8. The folding chair with footrest of claim 1, wherein: The bottom end of the front support rod in each of the left and right footrest frames is sleeved with an anti-skid sleeve.

9. The folding chair with footrest of claim 1, wherein: The left and right chair frames each comprise a back rod, and the folding chair frame further comprises left and right folding mechanisms and a pull part arranged symmetrically, the left and right folding mechanisms each comprise an upper pull rod and a lower pull rod, inner ends of the upper pull rods of the left and right folding mechanisms are respectively hinged to both sides of an upper end of the pull part, outer ends of the upper pull rods of the left and right folding mechanisms are respectively hinged to the back rods of the left and right chair frames, inner ends of the lower pull rods of the left and right folding mechanisms are respectively hinged to both sides of a lower end of the pull part, outer ends of the lower pull rods of the left and right folding mechanisms are respectively slidably connected to the back rods of the left and right chair frames, and the pull part is moved up and down to drive the left and right chair frames to be relatively close to each other to be in a folded state or to be relatively far away from each other to be in an unfolded state through the left and right folding mechanisms.

10. The folding chair with footrest of claim 9, wherein: The left and right chair frames each further comprise a rear leg rod and a handrail, rear ends of the handrails on the left and right chair frames are respectively hinged to middle and lower portions of the back rods of the left and right chair frames, front ends of the handrails on the left and right chair frames are respectively provided with a gear plate, each gear plate is provided with at least two limiting grooves distributed along a front and back direction of the gear plate and a sliding groove connected with the limiting grooves, and hinge pins of the front and rear supporting legs of the left and right chair frames are respectively inserted into the sliding grooves on the corresponding gear plates and can be moved in the sliding grooves to be clamped into any limiting groove.

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