Stroke height stepless adjusting mechanism for seat

Abstract

The utility model provides a stroke height stepless adjusting mechanism for a seat, and belongs to the technical field of automobile seats. Comprising a base plate, a top plate is arranged above the base plate, two sets of oppositely-arranged lower side sliding grooves are fixed to one side of the upper surface of the base plate, two sets of lower hinge bases are fixed to the other side of the upper surface of the base plate, and two sets of oppositely-arranged upper side sliding grooves vertically corresponding to the two sets of lower side sliding grooves are fixed to the lower surface of the top plate; two groups of upper hinge seats vertically corresponding to the two groups of lower hinge seats are fixed on the lower surface of the top plate, first connecting rods are hinged to the two lower hinge seats, upper pulleys are hinged to the tops of the first connecting rods, second connecting rods are hinged to the two upper hinge seats, and lower pulleys are hinged to the bottoms of the second connecting rods; the upper hinge seat and the lower hinge seat are each provided with a reset torsion spring used for driving the top plate to move upwards, an air spring is arranged between the base plate and the top plate, and the air spring is connected with a control switch through a wire. The utility model has the advantages of simple structure and convenience in stepless height adjustment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile seat, especially point to a kind of stroke height stepless adjustment mechanism for seat. BACKGROUND

[0002] Currently, in the cab of truck, the seat used by driver usually has height adjustment function and damping effect, so that driver uses more comfortable.

[0003] The existing seat is provided with a buffering mechanism on the basis of up-down adjustment function, and the overall structure is relatively complex, and there are certain difficulties in maintenance and maintenance. In addition, the height adjustment usually adopts preset gear form, and the preset range is too small, and cannot be adjusted to the appropriate height. SUMMARY

[0004] The utility model aims at providing a kind of stroke height stepless adjustment mechanism for seat, its structure is simple, installation is more convenient, stepless adjustment height, and operation is more convenient.

[0005] The utility model aims at realizing as follows:

[0006] A kind of stroke height stepless adjustment mechanism for seat, including base plate, top plate is disposed above base plate, the side of the upper surface of base plate is fixed with two groups of lower side sliding slot, and two lower side sliding slots are oppositely arranged, the other side of the upper surface of base plate is fixed with two groups of lower hinge seat, the lower surface of top plate is fixed with two groups of upper side sliding slot corresponding to two groups of lower side sliding slot, and two upper side sliding slots are oppositely arranged, the lower surface of top plate is fixed with two groups of upper hinge seat corresponding to two groups of lower hinge seat, first connecting rod is hinged on two lower hinge seats, the top of first connecting rod is hinged with the upper pulley matched with upper side sliding slot, second connecting rod is hinged on two upper hinge seats, the bottom of second connecting rod is hinged with the lower pulley matched with lower side sliding slot, reset torsion spring for driving top plate to move upwards is arranged on the upper hinge seat and lower hinge seat, air spring is arranged between base plate and top plate, and control switch is connected on air spring by wire.

[0007] The utility model is further provided with, the outer edge of base plate is fixed with the corrugated sleeve with top and base plate outer edge.

[0008] The utility model is further provided with, the upper side sliding slot and the lower side sliding slot are both provided with sliding rod, and two sliding rods are respectively threaded through the upper pulley and lower pulley.

[0009] The utility model is further provided with, the groove bottom of the upper side sliding slot and the lower side sliding slot is all set with the strip-shaped sliding hole for the end of sliding rod to extend.

[0010] The utility model further sets up, the middle part of adjacent first connecting rod is hinged with the middle part of second connecting rod.

[0011] The utility model further sets up, the upper hinge seat and lower hinge seat structure are same, the upper hinge seat includes two groups of parallel hinge plate, the middle part of two hinge plates is fixed with hinge shaft, and the end of hinge shaft is fixed with fixed ring, the reset torsional spring is sleeved on the hinge shaft, and one end of reset torsional spring is fixed on the side wall of fixed ring, the other end of reset torsional spring abuts on one side of the top of second connecting rod or one side of the bottom of first connecting rod.

[0012] The utility model further sets up, the bottom of top plate and the top of base plate are provided with the gas spring seat for the hinge of both ends of gas spring.

[0013] The utility model compared with prior art highlights and beneficial technical effect is:

[0014] 1, the utility model provides a stroke height stepless regulation mechanism, whole simple structure, and through two groups of end reset torsional spring connecting rod stable automatic rising, user through the simple control of gas spring switch, can realize the movement of top plate downward, using the characteristics of gas spring, can realize stepless speed regulation, convenient for user to adjust to comfortable position.

[0015] 2, the utility model further provides the corrugated sleeve can protect the mechanism to a certain extent, prevents foreign matter from entering the mechanism, and guarantees normal use.

[0016] 3, the utility model in upside slide groove and downside slide groove open strip -shaped slide hole, let the both ends of the sliding slide bar can be conveniently abutted, let the slide bar slide more stable, and the both ends of the pulley are stable.

[0017] 4, the utility model provides two groups of connecting rod middle part adopt the form of hinge, let both sides be more stable, the action of rising, descending is also more synchronous.

[0018] 5, the utility model further provides the hinge seat, can install reset torsional spring by hinge shaft, and first connecting rod and second connecting rod can drive top plate to rise action conveniently, and the fixed ring of setting also makes the limit of reset torsional spring end convenient, makes it effectively realize the rising operation of top plate. DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of the utility model;

[0020] Figure 2 It is the local structure schematic diagram of the utility model;

[0021] Figure 3is a partial explosion schematic view of the utility model;

[0022] Reference signs:

[0023] 1-base plate;

[0024] 2-top plate;

[0025] 3-lower side sliding groove, 30-upper side sliding groove, 31-sliding rod, 32-strip-shaped sliding hole;

[0026] 4-lower hinge seat, 40-upper hinge seat, 41-hinge plate, 42-hinge shaft, 43-fixing ring sleeve;

[0027] 5-first connecting rod, 50-upper pulley;

[0028] 6-second connecting rod, 60-lower pulley;

[0029] 7-reset torsional spring;

[0030] 8-air spring, 80-control switch, 81-air spring seat

[0031] 9-corrugated sleeve. DETAILED DESCRIPTION

[0032] The utility model will be further described in conjunction with the specific embodiment with the drawings, referring to Figure 1 — Figure 3 :

[0033] A stroke height stepless adjusting mechanism for seat, including base plate 1, the top of base plate 1 is provided with top plate 2, one side of the upper surface of base plate 1 is fixed with two groups of lower side sliding grooves 3, and two lower side sliding grooves 3 are oppositely arranged, the other side of the upper surface of base plate 1 is fixed with two groups of lower hinge seats 4, the lower surface of top plate 2 is fixed with two groups of upper side sliding grooves 30 corresponding to two groups of lower side sliding grooves 3, and two upper side sliding grooves 30 are oppositely arranged, the lower surface of top plate 2 is fixed with two groups of upper hinge seats 40 corresponding to two groups of lower hinge seats 4, the first connecting rod 5 is hinged on two lower hinge seats 4, the top of first connecting rod 5 is hinged with the upper pulley 50 matched with upper side sliding groove 30, the second connecting rod 6 is hinged on two upper hinge seats 40, the bottom of second connecting rod 6 is hinged with the lower pulley 60 matched with lower side sliding groove 3, the upper hinge seat 40 and lower hinge seat 4 are all provided with reset torsional spring 7 for driving top plate 2 to move upwards, air spring 8 is arranged between base plate 1 and top plate 2, and control switch 80 is connected to air spring 8 through wire.

[0034] In the implementation process, there are the following two states:

[0035] The first is normal use, without adjustment, the user during the ride, by the upward drive of the reset torsional spring, and by the pulling of the gas spring, so that it can have a certain cushioning effect when riding.

[0036] The second is when the user needs to adjust the height, the user controls the switch 80 to adjust the length of the telescopic rod of the gas spring, thereby adjusting the distance between the top plate and the base plate, and after adjusting the appropriate height, the damping effect can still be achieved by the torsional force of the reset torsional spring.

[0037] In the above structure, the two groups of connecting rods can improve the overall stability and balance, and the above structure is simple and convenient to install.

[0038] Preferably, the outer edge of the base plate 1 is fixed with a corrugated sleeve 9 fixed with the outer edge of the top plate 2. The setting of the corrugated sleeve 9 can provide a certain protection effect for the mechanism, so that it can be used for a long time.

[0039] Preferably, sliding rods 31 are arranged between the two upper side sliding grooves 30 and the two lower side sliding grooves 3, and the two sliding rods 31 respectively pass through the upper pulley 50 and the lower pulley 60.

[0040] Preferably, the groove bottoms of the two upper side sliding grooves 30 and the two lower side sliding grooves 3 are provided with strip-shaped sliding holes 32 for the end of the sliding rod 31 to extend out.

[0041] In the above structure, since it is a two-group connecting rod structure, the sliding rods 31 arranged between the upper side sliding grooves on both sides can make both sides more synchronized during lifting and lowering, and the lifting and lowering is more comfortable.

[0042] Preferably, the middle part of the adjacent first connecting rod 5 is hingedly connected with the middle part of the second connecting rod 6. The adjacent two connecting rods adopt the form of middle part hinged connection, which can be more stable in driving and enhance the synchronization of lifting on both sides.

[0043] Preferably, the upper hinge seat 40 and the lower hinge seat 4 are the same structure, the upper hinge seat 40 includes two groups of parallel hinge plates 41, the middle part of the two hinge plates 41 is fixed with a hinge shaft 42, and the end of the hinge shaft 42 is fixed with a fixed sleeve ring 43, the reset torsional spring 7 is sleeved on the hinge shaft 42, and one end of the reset torsional spring 7 is fixed to the side wall of the fixed ring sleeve 43, and the other end of the reset torsional spring 7 abuts against one side of the top of the second connecting rod 6 or one side of the bottom of the first connecting rod 5.

[0044] In the structure, the reset torsion spring can drive the connecting rod on the abutting side to swing, so that the connecting rod can be lifted upward, and the gas spring can keep the connecting rod at a required height during the lifting process. The hinged shaft 42 is always fixed, and the bottom of the first connecting rod and the top of the second connecting rod are sleeved on the hinged shaft 42, so that the end part of the hinged shaft 42 is stable during the lifting or lowering.

[0045] Preferably, the bottom of the top plate 2 and the top of the base plate 1 are provided with gas spring seats 81 for hinging the two ends of the gas spring 8.

[0046] In the structure, the gas spring will be inclined during the lifting and lowering, and the two gas spring seats 81 can reasonably hinge and rotate during the lifting and lowering, so that the normal work of the gas spring is ensured.

[0047] The above embodiments are only preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A stroke height infinitely adjustable mechanism for a seat, characterized by, The utility model provides a kind of automatic closing and opening device of top plate, including substrate (1), substrate (1) is provided with top plate (2) above, one side of substrate (1) upper surface is fixed with two groups of lower side sliding groove (3), and two lower side sliding groove (3) are oppositely arranged, the other side of substrate (1) upper surface is fixed with two groups of lower hinge seat (4), the lower surface of top plate (2) is fixed with two groups of upper side sliding groove (30) corresponding with two groups of lower side sliding groove (3) up and down, and two upper side sliding groove (30) are oppositely arranged, the lower surface of top plate (2) is fixed with two groups of upper hinge seat (40) corresponding with two groups of lower hinge seat (4) up and down, first connecting rod (5) is hingedly connected on two lower hinge seat (4), the top of first connecting rod (5) is hingedly connected with the upper pulley (50) compatible with upper side sliding groove (30), second connecting rod (6) is hingedly connected on two the upper hinge seat (40), and the bottom of second connecting rod (6) is hingedly connected with the lower pulley (60) compatible with lower side sliding groove (3), the upper hinge seat (40) and lower hinge seat (4) are both provided with reset torsional spring (7) for driving top plate (2) to move upwards, air spring (8) is arranged between substrate (1) and top plate (2), and control switch (80) is connected on air spring (8) by wire.

2. The infinitely adjustable travel height mechanism for a seat according to claim 1, wherein, The outer edge of the substrate (1) is fixed with a corrugated sleeve (9) whose top is fixed with the outer edge of the top plate (2).

3. The infinitely adjustable travel height mechanism for a seat of claim 1, wherein, Sliding rods (31) are arranged between the two upper side sliding grooves (30) and the two lower side sliding grooves (3), and the two sliding rods (31) respectively pass through the upper pulley (50) and the lower pulley (60).

4. The infinitely adjustable travel height mechanism for a seat according to claim 3, wherein, Strip-shaped sliding holes (32) are formed in the groove bottoms of the two upper side sliding grooves (30) and the two lower side sliding grooves (3) for the end portions of the sliding rods (31) to extend out.

5. The infinitely adjustable travel height mechanism for a seat according to claim 3, wherein, The middle portions of the adjacent first connecting rods (5) are hingedly connected with the middle portions of the second connecting rods (6).

6. The infinitely adjustable travel height mechanism for a seat of claim 1, wherein, The upper hinge seat (40) and the lower hinge seat (4) are the same in structure, the upper hinge seat (40) comprises two groups of parallel hinge plates (41), the middle portions of the two hinge plates (41) are fixed with hinge shafts (42), and the end portions of the hinge shafts (42) are fixed with fixed ring sleeves (43), the reset torsional spring (7) is sleeved on the hinge shaft (42), one end of the reset torsional spring (7) is fixed to the side wall of the fixed ring sleeve (43), and the other end of the reset torsional spring (7) abuts against one side of the top of the second connecting rod (6) or one side of the bottom of the first connecting rod (5).

7. The infinitely adjustable travel height mechanism for a seat of claim 1, wherein, Air spring seats (81) for the hinge connection of the two ends of the air spring (8) are oppositely arranged on the bottom of the top plate (2) and the top of the substrate (1).

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