CN212604691U - Adjustable driving chair - Google Patents

Abstract

The utility model discloses an adjustable driving chair, including the chassis, the inside of chassis is rotated and is connected with extension board and lower extension board, and the one end of going up the extension board and keeping away from the chassis with lower extension board rotates jointly and is connected with the upper bracket, and the top of upper bracket is provided with the bottom plate, the beneficial effects of the utility model are that: the utility model discloses a main part bearing structure that four connecting rods go up and down, to the support of bottom plate more firm reliable, the height adjustment mechanism that combines to set up carries out lift adjustment, through adjusting the position of inserted block in different locating holes on the locating lever, can adjust the distance between bottom plate and the chassis, this design makes the utility model discloses can adjust the height of bottom plate, operation process is simple, labour saving and time saving.

Description

Adjustable driving chair

Technical Field

The utility model relates to a carrier's seat technical field specifically is an adjustable driving chair.

Background

The second-generation wheeled chariot is mainly equipped with a mechanized army and used for supporting infantries and carrying infantry combat, can carry out motor combat tasks, can also cooperate with a main combat tank combat, is provided with a driving seat in the chariot, and at present, the driving seat of the second-generation wheeled chariot adopts a rod type lifting, and has unreliable supporting structure, and when the lifting adjustment operation is carried out, the operation is complex, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable driving chair to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the adjustable driving chair comprises a base frame, wherein an upper supporting plate and a lower supporting plate are rotatably connected inside the base frame, one end, far away from the base frame, of each of the upper supporting plate and the lower supporting plate is connected with an upper support in a rotating mode, a bottom plate is arranged above the upper support, seat frames are fixedly connected to the two sides of the upper surface of the bottom plate, a seat cushion is slidably connected between the seat frames, a front adjusting mechanism and a rear adjusting mechanism are arranged between the seat cushion and the bottom plate, a height adjusting mechanism is arranged between the bottom plate and the base frame, a backrest is rotatably connected between the seat frames and is located on one side of the seat cushion, and a backrest adjusting mechanism is arranged between the seat cushion and the seat frames.

Preferably, the upper bracket and the lower support plate are arranged in parallel.

Preferably, the height adjusting mechanism comprises two fan-shaped positioning plates, two positioning rods, an insertion block, two positioning holes, two connecting plates, an upper adjusting handle and a lower adjusting handle, the two connecting plates are fixedly connected with the upper support, the insertion rod is fixedly connected with the top end of the positioning rod, the two ends of the insertion rod are slidably connected with the connecting plates, the upper adjusting handle and the lower adjusting handle are movably hinged on the outer side wall of the connecting plates through movable hinge blocks, one end of the insertion rod, which is close to the movable hinge blocks, is movably hinged with the upper adjusting handle and the lower adjusting handle, the fan-shaped positioning plates are fixedly connected with one side of the lower support plate, which is close to the bottom plate, the upper support plate is provided with a notch, the fan-shaped positioning plates penetrate through the upper support plate through the notch, the plurality of the positioning holes are uniformly formed in the side walls of the, the insert block penetrates through the positioning hole.

Preferably, the backrest adjusting mechanism comprises a first rod, a second rod, a movable connecting rod, a backrest adjusting handle, a torsion spring and clamping teeth, the first rod is fixedly connected between the two seat frames, the second rod is rotatably connected to one side of the backrest far away from the seat cushion, the number of the movable connecting rods is two, the first rod and the second rod are movably connected through the two movable connecting rods, the backrest adjusting handle and the torsional spring are both arranged in two numbers, the backrest adjusting handle and the torsional spring are both sleeved on the outer side wall of the second rod, two ends of the torsion spring are respectively and fixedly connected with the backrest adjusting handle and the second rod, a plurality of clamping teeth are arranged and are respectively and fixedly connected on the outer side walls of the two seat frames, one end of the backrest adjusting handle close to the seat frame is clamped between the two clamping teeth, and a long rod is fixedly connected between the two backrest adjusting handles.

Preferably, the front and rear adjusting mechanism comprises a front and rear adjusting handle, a sliding rod, a fixed rod, a spring, a push ring, a positioning plate, a movable plate and a jack, the number of the movable plates is two, the two movable plates are both fixedly connected to the bottom of the bottom plate, the positioning plate is fixedly connected to the upper surface of the upper support, the positioning plate is slidably connected between the two movable plates, the front and rear adjusting handle is movably hinged to the outer side wall of the movable plate, the fixed rod is fixedly connected with the movable plates, the fixed rod is slidably connected with the front and rear adjusting handle, the sliding rod is fixedly connected to the outer side wall of the front and rear adjusting handle close to one end of the fixed rod, the spring and the push ring are both sleeved on the outer side wall of the fixed rod, two ends of the spring are respectively fixedly connected with the push ring far away from the, the jack is provided with a plurality ofly, and is a plurality of the jack is all seted up on the lateral wall of movable plate, slide bar fixed connection is in one side that the front and back adjustment handle is close to the movable plate, slide bar and movable plate sliding connection, the slide bar is kept away from front and back adjustment handle's one end joint in the inside of jack.

Preferably, two spacing spouts have all been seted up to the lateral wall of seat frame, two equal sliding connection in inside of spacing spout has spacing slider, two spacing slider is close to mutually all with seatpad fixed connection because of one side.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model adopts a main supporting structure with four connecting rods for lifting, the supporting of the bottom plate is more firm and reliable, the lifting adjustment is carried out by combining a height adjusting mechanism which is arranged, the distance between the bottom plate and the bottom frame can be adjusted by adjusting the positions of pin shafts on the positioning rods in different positioning holes, the lifting interval is larger, and a driver can observe and run in the vehicle through a periscope by reducing a seat in a complex environment when standing; under the safe condition, the head of a driver extends out of the roof by heightening the seat, and the driver can visually observe the driving.

2. This scheme is through setting up back adjustment mechanism, rotates back adjustment handle, because the both ends of torsional spring respectively with back adjustment handle and No. two pole fixed connection, through adjusting the position of back adjustment handle between different screens teeth, can adjust the angle of back, this scheme can be adjusted the back for the level even negative angle moreover, makes things convenient for the navigating mate to escape from the back door under the special circumstances.

3. This scheme is through setting up front and back adjustment mechanism, pulls front and back adjustment handle, and the joint of control card pearl joint difference on the slide is downthehole, can adjust the front and back position of seatpad, and the driver of being convenient for uses, and convenient to use, the practicality is strong.

Drawings

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

fig. 2 is a schematic diagram of the right-side view structure of the present invention;

FIG. 3 is a schematic view of the connection structure of the upper and lower adjustment handles and the plug rod of the present invention;

fig. 4 is a schematic structural view of the front-back adjusting mechanism of the present invention.

In the figure: 1. a chassis; 2. an upper support plate; 21. a notch; 3. a lower support plate; 4. an upper bracket; 5. a base plate; 51. a seat cushion; 52. a seat frame; 53. a limiting chute; 54. a limiting slide block; 6. a height adjustment mechanism; 61. a fan-shaped positioning plate; 62. positioning a rod; 63. positioning holes; 64. a connecting plate; 65. an up-down adjusting handle; 66. a movable hinge block; 67. inserting a block; 68. inserting a rod; 7. a front-rear adjusting mechanism; 71. a front and rear adjusting handle; 72. a slide bar; 73. fixing the rod; 74. a spring; 75. a push ring; 76. positioning a plate; 77. moving the plate; 78. a jack; 8. a backrest adjustment mechanism; 81. a first rod; 82. a second rod; 83. a movable connecting rod; 84. a backrest adjusting handle; 85. a torsion spring; 86. a clamping tooth; 87. a long rod; 9. a backrest.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an adjustable driving chair, including chassis 1, chassis 1's inside is rotated and is connected with extension board 2 and lower support plate 3, upper bracket 2 and lower support plate 3 keep away from chassis 1's one end and rotate jointly and be connected with upper bracket 4, upper bracket 4's top is provided with bottom plate 5, the equal fixedly connected with seat frame 52 in both sides of bottom plate 5 upper surface, sliding connection has seatpad 51 between two seat frames 52, adjustment mechanism 7 around being provided with between seatpad 51 and the bottom plate 5, be provided with height adjustment mechanism 6 between bottom plate 5 and the chassis 1, it is connected with back 9 to rotate between two seat frames 52, back 9 is located one side of seatpad 51, be provided with back adjustment mechanism 8 between seatpad 51 and the seat frame 52.

The upper bracket 4 and the lower support plate 3 are arranged in parallel and form a main body supporting structure together with the underframe 1 and the upper bracket 4;

the height adjusting mechanism 6 comprises a fan-shaped positioning plate 61, a positioning rod 62, an inserting block 67, positioning holes 63, connecting plates 64, an upper and lower adjusting handle 65 and inserting rods 68, wherein two connecting plates 64 are arranged, the two connecting plates 64 are fixedly connected with the upper support 4, the inserting rod 68 at the top end of the positioning rod 62 is fixedly connected, the two ends of the inserting rod 68 are slidably connected with the connecting plates 64, the upper and lower adjusting handles 65 are movably hinged on the outer side wall of the connecting plates 64 through movable hinge blocks 66, one end of the inserting rod 68 close to the movable hinge blocks 66 is movably hinged with the upper and lower adjusting handles 65, the fan-shaped positioning plate 61 is fixedly connected to one side of the lower support plate 3 close to the bottom plate 5, the upper support plate 2 is provided with a notch 21, the fan-shaped positioning plate 61 penetrates through the upper support plate 2 through the notch 21, the positioning holes 63 are provided with a plurality of positioning holes 63, the, the inserting block 67 penetrates through the positioning hole 63, when the height of the seat cushion 51 needs to be adjusted, the up-down adjusting handle 65 is pulled towards the direction close to the inserting rod 68, the inserting rod 68 drives the positioning rod 62 to move towards the direction away from the fan-shaped positioning plate 61, the inserting block 67 is separated from the positioning hole 63, the bottom plate 5 is pulled up and down, the bottom frame 1 and the upper support 4 are rotated through the upper support plate 2 and the lower support plate 3, the distance between the bottom frame 1 and the upper support 4 is adjusted, after the adjustment is finished, the up-down adjusting handle 65 is pulled, the positioning rod 62 is driven by the inserting rod 68 to move towards the direction close to the fan-shaped positioning plate 61, the inserting block 67 is inserted into the corresponding positioning hole 63, the height of the bottom plate 5 after the adjustment is finished can be;

the backrest adjusting mechanism 8 comprises a first rod 81, a second rod 82, movable connecting rods 83, a backrest adjusting handle 84, a torsion spring 85 and clamping teeth 86, the first rod 81 is fixedly connected between the two seat frames 52, the second rod 82 is rotatably connected to one side of the backrest 9 away from the seat cushion 51, the number of the movable connecting rods 83 is two, the first rod 81 and the second rod 82 are movably connected through the two movable connecting rods 83, the number of the backrest adjusting handle 84 and the number of the torsion spring 85 are two, the backrest adjusting handle 84 and the torsion spring 85 are sleeved on the outer side wall of the second rod 82, two ends of the torsion spring 85 are respectively fixedly connected with the backrest adjusting handle 84 and the second rod 82, the clamping teeth 86 are provided with a plurality of clamping teeth 86, the clamping teeth 86 are respectively and fixedly connected on the outer side walls of the two seat frames 52, one end of the backrest adjusting handle 84 close to the seat frames 52 is clamped between the two clamping teeth 86, a long rod 87 is fixedly connected between the two backrest adjusting handles 84, after the backrest 9 is pushed to a proper angle, the backrest adjusting handle 84 is loosened, the torsion spring 85 drives the backrest adjusting handle 84 to reset, the backrest adjusting handle 84 is clamped between the two clamping teeth 86, and the angle of the backrest 9 can be kept at the position after adjustment is completed;

the front-back adjusting mechanism 7 comprises a front-back adjusting handle 71, a sliding rod 72, a fixed rod 73, a spring 74, a push ring 75, a positioning plate 76, two moving plates 77 and jacks 78, wherein the two moving plates 77 are arranged, both the two moving plates 77 are fixedly connected to the bottom of the bottom plate 5, the positioning plate 76 is fixedly connected to the upper surface of the upper support 4, the positioning plate 76 is slidably connected between the two moving plates 77, the front-back adjusting handle 71 is movably hinged to the outer side wall of the moving plate 77, the fixed rod 73 is fixedly connected with the moving plates 77, the fixed rod 73 is slidably connected with the front-back adjusting handle 71, the sliding rod 72 is fixedly connected to the outer side wall of one end, close to the fixed rod 73, of the front-back adjusting handle 71, the spring 74 and the push ring 75 are sleeved on the outer side wall of the fixed rod 73, two ends of the spring 74 are respectively fixedly connected with one end, the plurality of insertion holes 78 are arranged, the plurality of insertion holes 78 are all arranged on the outer side wall of the moving plate 77, the sliding rod 72 is fixedly connected to one side of the front-back adjusting handle 71 close to the moving plate 77, the sliding rod 72 is connected with the moving plate 77 in a sliding manner, one end of the sliding rod 72 far away from the front-back adjusting handle 71 is clamped in the insertion hole 78, one end of the front-back adjusting handle 71 far away from the sliding rod 72 is pushed towards the moving plate 77, one end of the front-back adjusting handle 71 with the sliding rod 72 is tilted, the sliding rod 72 is separated from the insertion hole 78, then the bottom plate 5 is pushed to adjust the seat cushion 51 to a proper position, the bottom plate 5 drives the moving plate 77 to slide on the positioning plate 76, the front-back adjusting handle 71 is loosened, due to the elasticity of the spring 74, one end of the front-back adjusting, the positional relationship between the moving plate 77 and the positioning plate 76 is maintained, and the front and rear positions of the seat cushion 51 can be adjusted;

spacing spout 53 has all been seted up to the lateral wall of two seat frames 52, and the equal sliding connection in inside of two spacing spout 53 has spacing slider 54, and two spacing sliders 54 are close to mutually because of one side all with seatpad 51 fixed connection, seatpad 51 can slide along spacing spout 53 through spacing slider 54.

When the utility model is used, the lifting adjustment is carried out by combining the height adjusting mechanism 6 arranged on the main body supporting structure with four-bar linkage lifting, when the height of the seat cushion 51 needs to be adjusted, the upper and lower adjusting handles 65 are pulled towards the direction close to the inserting bar 68, the inserting bar 68 drives the positioning bar 62 to move towards the direction far away from the fan-shaped positioning plate 61, the inserting block 67 is separated from the positioning hole 63, the bottom plate 5 is pulled up and down, the distance between the bottom frame 1 and the upper bracket 4 is adjusted by the rotation of the upper supporting plate 2 and the lower supporting plate 3 between the bottom frame 1 and the upper bracket 4, after the adjustment is finished, the upper and lower adjusting handles 65 are pulled, the positioning bar 62 is driven by the inserting bar 68 to move towards the direction close to the fan-shaped positioning plate 61, the inserting block 67 is inserted into the corresponding positioning hole 63, the height of the bottom plate 5 after the adjustment is finished, the operation process is simple, because the two ends of the torsion spring 85 are respectively fixedly connected with the backrest adjusting handle 84 and the second rod 82, after the backrest 9 is pushed to a proper angle, the backrest adjusting handle 84 is loosened, the torsion spring 85 drives the backrest adjusting handle 84 to reset, the backrest adjusting handle 84 is clamped between the two clamping teeth 86, so that the angle of the backrest 9 can be kept in a state after the adjustment is completed, when the front and back position of the seat cushion 51 needs to be adjusted, one end of the front and back adjusting handle 71 away from the sliding rod 72 is pushed towards the moving plate 77, one end of the front and back adjusting handle 71 with the sliding rod 72 is tilted, the sliding rod 72 is separated from the insertion hole 78, then the bottom plate 5 is pushed to adjust the seat cushion 51 to a proper position, the bottom plate 5 drives the positioning plate 76 to slide, the front and back adjusting handle moving plate 71 is loosened, because the spring 74 has elasticity, one end of the front and back adjusting handle 71 with the sliding rod 72 can be pushed, the sliding rods 72 can be automatically inserted into the corresponding insertion holes 78, the position relationship between the moving plate 77 and the positioning plate 76 is maintained, the front and rear positions of the seat cushion 51 can be adjusted, the operation is simple, and the use by a driver is convenient.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. An adjustable driving chair, which is characterized in that: comprises an underframe (1), an upper support plate (2) and a lower support plate (3) are rotatably connected inside the underframe (1), one ends of the upper support plate (2) and the lower support plate (3) far away from the underframe (1) are jointly and rotatably connected with an upper support (4), a bottom plate (5) is arranged above the upper bracket (4), seat frames (52) are fixedly connected to both sides of the upper surface of the bottom plate (5), a seat cushion (51) is connected between the two seat frames (52) in a sliding manner, a front-back adjusting mechanism (7) is arranged between the seat cushion (51) and the bottom plate (5), a height adjusting mechanism (6) is arranged between the bottom plate (5) and the bottom frame (1), a backrest (9) is rotatably connected between the two seat frames (52), the backrest (9) is positioned on one side of the seat cushion (51), and a backrest adjusting mechanism (8) is arranged between the seat cushion (51) and the seat frame (52).

2. An adjustable driver's chair as claimed in claim 1, wherein: the upper bracket (4) and the lower support plate (3) are arranged in parallel.

3. An adjustable driver's chair as claimed in claim 1, wherein: the height adjusting mechanism (6) comprises a fan-shaped positioning plate (61), a positioning rod (62), two insertion blocks (67), positioning holes (63), two connecting plates (64), two upper and lower adjusting handles (65) and two insertion rods (68), the two connecting plates (64) are fixedly connected with the upper support (4), the top end insertion rod (68) of the positioning rod (62) is fixedly connected, the two ends of the insertion rod (68) are slidably connected with the connecting plates (64), the upper and lower adjusting handles (65) are movably hinged on the outer side wall of the connecting plate (64) through movable hinge blocks (66), one end, close to the movable hinge blocks (66), of the insertion rod (68) is movably hinged with the upper and lower adjusting handles (65), the fan-shaped positioning plate (61) is fixedly connected to one side, close to the bottom plate (5), of the lower support plate (3), and the upper support plate (2) is provided with a notch (21), the fan-shaped positioning plate (61) penetrates through the upper support plate (2) through the notch (21), a plurality of positioning holes (63) are formed in the side wall of the fan-shaped positioning plate (61), the positioning holes (63) are uniformly formed in the side wall of the fan-shaped positioning plate, the inserting block (67) is fixedly connected to the bottom end of the positioning rod (62), and the inserting block (67) penetrates through the positioning holes (63).

4. An adjustable driver's chair as claimed in claim 1, wherein: the backrest adjusting mechanism (8) comprises a first rod (81), a second rod (82), a movable connecting rod (83), a backrest adjusting handle (84), a torsion spring (85) and clamping teeth (86), the first rod (81) is fixedly connected between the two seat frames (52), the second rod (82) is rotatably connected to one side of the backrest (9) far away from the seat cushion (51), the movable connecting rod (83) is provided with two rods, the first rod (81) and the second rod (82) are movably connected through the two movable connecting rods (83), the backrest adjusting handle (84) and the torsion spring (85) are both provided with two rods, the backrest adjusting handle (84) and the torsion spring (85) are both sleeved on the outer side wall of the second rod (82), two ends of the torsion spring (85) are respectively fixedly connected with the backrest adjusting handle (84) and the second rod (82), the clamping teeth (86) are provided with a plurality of rods, a plurality of screens tooth (86) are fixed connection respectively on the lateral wall of two seatframes (52), back adjustment handle (84) are close to the one end joint of seatframe (52) between two screens tooth (86), two fixedly connected with stock (87) between back adjustment handle (84).

5. An adjustable driver's chair as claimed in claim 1, wherein: the front and rear adjusting mechanism (7) comprises a front and rear adjusting handle (71), a sliding rod (72), a fixed rod (73), a spring (74), a push ring (75), two positioning plates (76), two moving plates (77) and jacks (78), wherein the two moving plates (77) are fixedly connected to the bottom of the bottom plate (5), the positioning plates (76) are fixedly connected to the upper surface of the upper support (4), the positioning plates (76) are slidably connected between the two moving plates (77), the front and rear adjusting handle (71) is movably hinged to the outer side wall of the moving plate (77), the fixed rod (73) is fixedly connected with the moving plates (77), the fixed rod (73) is slidably connected with the front and rear adjusting handle (71), the sliding rod (72) is fixedly connected to the outer side wall of the front and rear adjusting handle (71) close to one end of the fixed rod (73), spring (74) and push ring (75) all establish on the lateral wall of dead lever (73), the one end fixed connection that moving plate (77) were kept away from to adjusting handle (71) and dead lever (73) around keeping away from respectively with push ring (75) in the both ends of spring (74), one side that moving plate (77) were kept away from to adjusting handle (71) around spring (74) and push ring (75) all are located, jack (78) are provided with a plurality ofly, a plurality of jack (78) all set up on the lateral wall of moving plate (77), slide bar (72) fixed connection is in one side that moving plate (77) is close to in adjusting handle (71) around, slide bar (72) and moving plate (77) sliding connection, the inside of jack (78) is connected to the one end joint of adjusting handle (71) around keeping away from in slide bar (72).

6. An adjustable driver's chair as claimed in claim 1, wherein: two spacing spout (53) have all been seted up to the lateral wall of seat frame (52), two equal sliding connection in inside of spacing spout (53) has spacing slider (54), two spacing slider (54) are close to mutually all with seatpad (51) fixed connection because of one side.

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