CN111376799A - Seat structure and engineering machinery - Google Patents
Seat structure and engineering machinery Download PDFInfo
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- CN111376799A CN111376799A CN202010376314.7A CN202010376314A CN111376799A CN 111376799 A CN111376799 A CN 111376799A CN 202010376314 A CN202010376314 A CN 202010376314A CN 111376799 A CN111376799 A CN 111376799A
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- seat
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- telescopic driving
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- 238000010276 construction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/10—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable tiltable
Abstract
The invention discloses a seat structure and engineering machinery, and relates to the technical field of seat adjustment. This seat structure includes seat and adjustment subassembly, and the adjustment subassembly includes first flexible driving piece and the flexible driving piece of second, and first flexible driving piece and the flexible driving piece of second set up alternately, and respective bottom is used for articulating in the bottom plate of cockpit respectively, and respective top articulates respectively in the seat, and first flexible driving piece and the flexible driving piece homoenergetic of second can stretch out and draw back to pitching angle around the adjustment seat. The seat structure and the engineering machinery have the characteristics of seat angle adjustment and compact structure.
Description
Technical Field
The invention relates to the technical field of seat adjustment, in particular to a seat structure and engineering machinery.
Background
Engineering machines such as excavators are used in a wide range as very important construction equipment for mechanized construction of infrastructure construction such as house construction, road and bridge construction, irrigation and water conservancy, mine excavation, national defense rescue, and the like.
The existing engineering machinery seat is mostly fixed in a cab, the angle of the seat cannot be adjusted, the engineering machinery is easy to incline to a certain degree during operation, if the body of a driver leans backwards to a certain degree during uphill, a blind area is formed at a front window of the cab, and the operation of the excavator by the excavator driver is influenced.
In view of the above, it is important to develop a seat structure and an engineering machine that can solve the above technical problems.
Disclosure of Invention
The invention aims to provide a seat structure which has the characteristics of seat angle adjustment and compact structure.
Another object of the present invention is to provide a construction machine, which has a compact structure and is capable of adjusting the seat angle.
The invention provides a technical scheme that:
in a first aspect, embodiments of the present invention provide a seat structure, comprising a seat and an adjustment assembly, wherein the adjustment assembly comprises a first telescopic drive and a second telescopic drive; the first telescopic driving piece and the second telescopic driving piece are arranged in a crossed mode, the bottom ends of the first telescopic driving piece and the second telescopic driving piece are respectively hinged to a bottom plate of a cab, and the top ends of the first telescopic driving piece and the second telescopic driving piece are respectively hinged to a seat; the first telescopic driving piece and the second telescopic driving piece can be both telescopic so as to adjust the front and back pitching angles of the seat.
With reference to the first aspect, in a first implementation manner of the first aspect, the first telescopic driving element and the second telescopic driving element are both located on a plane perpendicular to a backrest and a seat cushion of the seat.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a second implementation manner of the first aspect, the adjusting assembly further includes a first upper hinge, a first lower hinge, a second upper hinge, and a second lower hinge; the top end of the first telescopic driving piece is hinged with the seat through the first upper hinge piece; the bottom end of the first telescopic driving piece is hinged with the bottom plate through the first lower hinge piece; the top end of the second telescopic driving piece is hinged with the seat through the second upper hinge piece; the bottom end of the second telescopic driving piece is hinged with the bottom plate through the second lower hinge piece; the first upper hinge piece, the first lower hinge piece, the second upper hinge piece and the second lower hinge piece are revolute pairs, and respective rotation axes are parallel to a plane where a backrest of the seat is located and a plane where a seat cushion of the seat is located.
With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the first telescopic driving element and the second telescopic driving element are both electric push rods.
With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, the seat structure further includes a control assembly, where the control assembly includes a first angle sensor and a main controller electrically connected to each other, and the main controller is further electrically connected to the first telescopic driving element and the second telescopic driving element respectively; the first angle sensor is arranged on the seat and used for detecting the front and back pitching angles of the seat, and the main controller can control the first telescopic driving piece and/or the second telescopic driving piece to be telescopic according to the front and back pitching angles so as to adjust the front and back pitching angles of the seat.
With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the adjustment assembly further includes a third telescopic driving element, a bottom end of the third telescopic driving element is used for being hinged to the bottom plate, a top end of the third telescopic driving element is hinged to the seat, and the third telescopic driving element can be stretched to drive the seat to swing left or right relative to the bottom plate so as to adjust a left-right inclination angle of the seat.
With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the third telescopic driving element is vertically disposed.
With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, the seat structure further includes a control assembly, where the control assembly includes a second angle sensor and a main controller electrically connected to each other, and the main controller is further electrically connected to the third telescopic driving element respectively; the second angle sensor is arranged on the seat and used for detecting the left and right inclination angles of the seat, and the main controller can control the third telescopic driving piece to stretch and retract according to the left and right inclination angles so as to adjust the left and right inclination angles of the seat.
With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, the adjustment assembly further includes a third telescopic driving element and a fourth telescopic driving element; the third telescopic driving piece and the fourth telescopic driving piece are arranged in a crossed mode, the bottom ends of the third telescopic driving piece and the fourth telescopic driving piece are hinged to a bottom plate of a cab, and the top ends of the third telescopic driving piece and the fourth telescopic driving piece are hinged to a seat; the third telescopic driving piece and the fourth telescopic driving piece can be both telescopic so as to adjust the left and right inclination angles of the seat.
In a second aspect, an embodiment of the present invention further provides an engineering machine, including a cockpit and the seat structure, where the seat structure includes a seat and an adjustment assembly, and the adjustment assembly includes a first telescopic driving element and a second telescopic driving element; the first telescopic driving piece and the second telescopic driving piece are arranged in a crossed mode, the bottom ends of the first telescopic driving piece and the second telescopic driving piece are respectively hinged to a bottom plate of a cockpit, and the top ends of the first telescopic driving piece and the second telescopic driving piece are respectively hinged to a seat; the first telescopic driving piece and the second telescopic driving piece can be both telescopic so as to adjust the front and back pitching angles of the seat.
Compared with the prior art, the seat structure provided by the embodiment of the invention has the beneficial effects that compared with the prior art, the seat structure provided by the embodiment of the invention comprises the following components:
this seat structure includes seat and adjustment subassembly, and the adjustment subassembly includes first flexible driving piece and the flexible driving piece of second, and wherein, the flexible driving piece of first flexible driving piece and second sets up alternately, and respective bottom is used for articulating in the bottom plate of cockpit respectively, and respective top articulates respectively in the seat to, the flexible driving piece homoenergetic of first flexible driving piece and second can stretch out and draw back to pitching angle around the adjustment seat. Thus, the first telescopic driving piece and the second telescopic driving piece which are arranged in a crossed mode drive the seat to pitch forwards and backwards, so that the effect of adjusting the pitch angle of the seat is achieved, the pitch angle of the seat is adjusted conveniently when the engineering machinery is operated and inclines to a certain degree, the degree of body inclination of a driver is reduced, the driver is guaranteed to have a good driving posture, blind areas are reduced, and driving safety is improved. And, through the first flexible driving piece and the flexible driving piece of second of cross arrangement to reduce the shared space of adjustment assembly, improve the compactness of seat structure.
The beneficial effects of the engineering machine provided by the embodiment of the invention relative to the prior art are the same as the beneficial effects of the seat structure relative to the prior art, and are not described again.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a seat structure applied to a construction machine according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a seat structure according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a seat structure provided with a third telescopic driving element according to an embodiment of the invention.
Icon: 100-engineering machinery; 20-a cockpit; 10-a seat structure; 12-a seat; 121-cushion; 122-backrest; 13-an adjustment assembly; 131-a first telescopic drive member; 132-a second telescopic drive; 133-a third telescopic drive; 135-a first upper hinge; 136-a first lower hinge; 137-a second upper hinge; 138-a second lower hinge; 15-a control assembly; 153 — a master controller; 151-first angle sensor; 152-second angle sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the inventive product, or as would be conventionally understood by one skilled in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example (b):
referring to fig. 1, fig. 1 is a schematic structural view illustrating a seat structure 10 applied to a construction machine 100 according to an embodiment of the present invention.
The embodiment of the invention provides a seat structure 10, and the seat structure 10 has the characteristics of being capable of adjusting the angle of a seat 12 and having a compact structure. The seat structure 10 can be used as a seat 12 in a cabin 20 of a construction machine 100, a special vehicle, or the like.
Wherein, be applied to engineering machine 100 case with seat structure 10, this engineering machine 100 includes cockpit 20 and seat structure 10, and seat structure 10 connects in the bottom plate (not marked in the figure) of cockpit 20, and just seat structure 10 can adjust the angle when engineering machine 100 just appears the slope of certain degree when the operation to certain slope appears in the driver's health, guarantees that the driver has better driving posture, reduces the blind area, improves driving safety.
Since the engineering machine 100 adopts the seat structure 10 provided by the embodiment of the invention, the cab 20 also has the characteristics of being capable of adjusting the angle of the seat 12 and being compact in structure.
The structural composition, the operation principle and the advantages of the seat structure 10 according to the embodiment of the present invention will be described in detail below.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a seat structure 10 according to an embodiment of the present invention.
This seat structure 10 includes seat 12 and adjustment assembly 13, and adjustment assembly 13 includes first flexible driving piece 131 and the flexible driving piece 132 of second, and wherein, first flexible driving piece 131 and the flexible driving piece 132 of second cross arrangement, and respective bottom is used for articulating in the bottom plate of cockpit 20 respectively, and respective top articulates respectively in seat 12 to, first flexible driving piece 131 and the flexible driving piece 132 homoenergetic of second all can stretch out and draw back, in order to adjust seat 12 front and back pitch angle. In other words, the projections of the first telescopic driver 131 and the second telescopic driver 132 on the plane perpendicular to the seat cushion 121 and the backrest 122 of the seat 12 intersect, and the top end of the first telescopic driver 131 and the top end of the second telescopic driver 132 are respectively connected to the seat 12 in tandem, and the front and rear tilt angles of the seat 12 are changed by extending and retracting the length of the first telescopic driver 131 and the top end of the second telescopic driver 132, so as to achieve the effect of adjusting the front and rear tilt angles of the seat 12.
In this way, the first telescopic driving element 131 and the second telescopic driving element 132 which are arranged in a crossed manner drive the seat 12 to pitch back and forth, so as to realize the effect of adjusting the pitch angle of the seat 12, so as to adjust the pitch angle of the seat 12 when the engineering machinery 100 is operated and inclines to a certain degree, so as to reduce the degree of body inclination of the driver, ensure that the driver has a better driving posture, reduce blind areas and improve driving safety. In addition, the first telescopic driving element 131 and the second telescopic driving element 132 are arranged in a crossed manner, so that the space occupied by the adjustment assembly 13 is reduced, and the compactness of the seat structure 10 is improved.
It should be noted that, in the present embodiment, the first telescopic driver 131 and the second telescopic driver 132 are both located in a plane perpendicular to the backrest 122 of the seat 12 and perpendicular to the seat cushion 121, in other words, the projection of the first telescopic driver 131 and the second telescopic driver 132 onto the plane perpendicular to the front-back direction of the seat 12 is substantially two adjacent straight lines or parallel straight lines. Thus, the occupied space is further reduced, and the compactness of the seat structure 10 is further improved. In other embodiments, the projections of the first telescopic driving element 131 and the second telescopic driving element 132 on the vertical plane perpendicular to the front-back direction of the seat 12 may also be two waistlines of a substantially regular trapezoid, or the extension line of the first telescopic driving element 131 in the length direction intersects with the extension line of the second telescopic driving element 132 in the length direction, so as to improve the stability of the first telescopic driving element 131 and the second telescopic driving element 132 supporting the seat 12 together.
Further, the adjusting assembly 13 may further include a first upper hinge 135, a first lower hinge 136, a second upper hinge 137, and a second lower hinge 138, wherein a top end of the first telescopic driving member 131 is hinged to the seat 12 through the first upper hinge 135; the bottom end of the first telescopic driving member 131 is hinged with the bottom plate through a first lower hinge 136; the top end of the second telescopic driving member 132 is hinged with the seat 12 through the second upper hinge 137; the bottom end of the second telescopic driving member 132 is hinged to the base plate by a second lower hinge 138. Moreover, the first upper hinge 135, the first lower hinge 136, the second upper hinge 137, and the second lower hinge 138 are all revolute pairs, and respective rotation axes of the four revolute pairs are all parallel to a plane where the backrest 122 of the seat 12 is located and a plane where the seat cushion 121 of the seat 12 is located. To restrict the degree of freedom of movement of the seat 12 and enable only pitching, thereby improving the stability of adjusting the pitching angle of the seat 12.
Further, the first telescopic driving member 131 and the second telescopic driving member 132 are both electric push rods, in other words, both are structures in which the motor drives the screw rod to rotate to drive the push rod to extend and retract, and have a self-locking function, and can extend out of a certain position to fix the extension amount, so that the front and back pitch angles of the seat 12 can be easily maintained.
The seat structure 10 further includes a control assembly 15, the control assembly 15 may include a first angle sensor 151 and a main controller 153 electrically connected to each other, the main controller 153 is further electrically connected to the first telescopic driving member 131 and the second telescopic driving member 132, respectively, wherein the first angle sensor 151 is disposed on the seat 12 and is used for detecting a pitch angle of the seat 12, and the main controller 153 can control the first telescopic driving member 131 and/or the second telescopic driving member 132 to be telescopic according to the pitch angle to adjust the pitch angle of the seat 12.
For example, when the construction machine 100 is in an ascending and heading state and the seat 12 is facing a heading direction, the first angle sensor 151 detects that the pitch angle of the seat 12 is greater than the preset pitch angle range and is a positive value, the main controller 153 controls the second telescopic driving element 132 to extend according to the pitch angle, or controls the first telescopic driving element 131 to shorten according to the pitch angle, or controls the second telescopic driving element 132 to extend while controlling the first telescopic driving element 131 to shorten according to the pitch angle, so that the pitch angle is within the preset pitch angle range.
When the construction machine 100 is in a downhill forward state and the seat 12 faces a forward direction, the first angle sensor 151 detects that the pitch angle of the seat 12 is greater than a preset pitch angle range, and is a negative value, the main controller 153 controls the first telescopic driving member 131 to extend according to the pitch angle, or controls the second telescopic driving member 132 to shorten according to the pitch angle, or controls the first telescopic driving member 131 to extend while controlling the second telescopic driving member 132 to shorten according to the pitch angle, so that the pitch angle is within the preset pitch angle range.
When the front and rear pitch angles are within the preset pitch angle range, the main controller 153 does not control the first and second telescopic drivers 131 and 132 to be telescopic, so as to maintain the state of the seat 12.
It is understood that the main controller 153 may also be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), a voice Processor, a video Processor, and the like; but may also be a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The main Controller 153 may also be any conventional processor, such as a PLC (Programmable Logic Controller), a single chip, etc. Of course, the main controller 153 may also be a relay contactor control system, and the combination of switches, relays, buttons and other control appliances is adopted to realize the functions of receiving signals, switching circuits, switching on and off, adjusting and the like.
Referring to fig. 3, fig. 3 is a schematic structural view of the seat structure 10 having the third retractable driving member 133 according to the embodiment of the present invention.
The adjustment assembly 13 may further include a third telescopic driving member 133, a bottom end of the third telescopic driving member 133 is configured to be hinged to the bottom plate, a top end of the third telescopic driving member 133 is hinged to the seat 12, and the third telescopic driving member 133 can be telescopic to drive the seat 12 to swing left or right relative to the bottom plate to adjust a left-right tilt angle of the seat 12. In other words, the third telescopic driver 133 is extended or shortened to drive the seat 12 to swing left and right relative to the top end of the first telescopic driver 131 and the top end of the second telescopic driver 132, so as to adjust the left and right tilt angle of the seat 12, so that the seat structure 10 can adjust the left and right tilt angle of the seat 12 when the cab 20 tilts left and right, thereby improving the adaptability of the seat structure 10.
It should be noted that, in the present embodiment, the third telescopic driving member 133 is vertically disposed. To simplify the structure, in other embodiments, the third telescopic driving member 133 can be disposed obliquely and cross the second telescopic driving member 132.
Moreover, in other embodiments, the adjusting assembly 13 may further include a fourth telescopic driving element, which is combined with the third telescopic driving element 133, the first telescopic driving element 131 and the second telescopic driving element 132 are combined, the first telescopic driving element 131 and the second telescopic driving element 132 are disposed in an intersecting manner, and both are located in a plane perpendicular to the backrest 122 of the seat 12 and also perpendicular to the seat cushion 121, and the third telescopic driving element 133 and the fourth telescopic driving element are disposed in an intersecting manner, and both are located in a plane perpendicular to the front-back direction of the seat 12, so as to improve the stability of the adjusting assembly 13 in adjusting the angle of the seat 12.
Further, the control assembly 15 may further include a second angle sensor 152 electrically connected to the main controller 153, the main controller 153 is further respectively connected to the third telescopic driving members 133, the second angle sensor 152 is also disposed on the seat 12 and is used for detecting the roll angle of the seat 12, and the main controller 153 can control the third telescopic driving members 133 to extend and retract according to the roll angle so as to adjust the pitch angle of the seat 12.
For example, when the cab 20 is in a state of being tilted to the left, the second angle sensor 152 detects that the roll angle of the seat 12 is greater than the preset tilt angle range, and is a negative value, the main controller 153 controls the third telescopic driving element 133 to extend according to the roll angle, of course, the main controller 153 may also be electrically connected to the fourth telescopic driving element, and the main controller 153 may also control the fourth telescopic driving element to shorten according to the pitch angle, or control the third telescopic driving element 133 to extend while controlling the fourth telescopic driving element to shorten according to the pitch angle, so that the roll angle of the seat 12 is within the preset tilt angle range.
When the cockpit 20 is in a state of being tilted to the left, the second angle sensor 152 detects that the left and right tilt angles of the seat 12 are greater than the preset tilt angle range, and is a negative value, the main controller 153 can control the fourth telescopic driving member to extend according to the left and right tilt angles, or control the third telescopic driving member 133 to shorten according to the left and right tilt angles, or control the fourth telescopic driving member to extend while controlling the third telescopic driving member 133 to shorten according to the left and right tilt angles, so that the left and right tilt angles of the seat 12 are within the preset tilt angle range.
And when the left and right inclination angles are within the preset inclination angle range, the main controller 153 does not control the third and fourth telescopic drivers 133 and 133 to be telescopic so as to maintain the state of the seat 12.
In addition, when the third telescopic driving member 133 and/or the fourth telescopic driving member are provided, the first upper hinge 135 and the second upper hinge 137 are both ball joints, and the top ends of the third telescopic driving member 133 and the fourth telescopic driving member may be hinged to the seat 12 by hooke joints.
The working principle of the seat structure 10 provided by the embodiment of the invention is as follows:
this seat structure 10 includes seat 12 and adjustment assembly 13, and adjustment assembly 13 includes first flexible driving piece 131 and the flexible driving piece 132 of second, and wherein, first flexible driving piece 131 and the flexible driving piece 132 of second cross arrangement, and respective bottom is used for articulating in the bottom plate of cockpit 20 respectively, and respective top articulates respectively in seat 12 to, first flexible driving piece 131 and the flexible driving piece 132 homoenergetic of second all can stretch out and draw back, in order to adjust seat 12 front and back pitch angle. In other words, the projections of the first telescopic driver 131 and the second telescopic driver 132 on the plane perpendicular to the seat cushion 121 and the backrest 122 of the seat 12 intersect, and the top end of the first telescopic driver 131 and the top end of the second telescopic driver 132 are respectively connected to the seat 12 in tandem, and the front and rear tilt angles of the seat 12 are changed by extending and retracting the length of the first telescopic driver 131 and the top end of the second telescopic driver 132, so as to achieve the effect of adjusting the front and rear tilt angles of the seat 12. In this way, the first telescopic driving element 131 and the second telescopic driving element 132 which are arranged in a crossed manner drive the seat 12 to pitch back and forth, so as to realize the effect of adjusting the pitch angle of the seat 12, so as to adjust the pitch angle of the seat 12 when the engineering machinery 100 is operated and inclines to a certain degree, so as to reduce the degree of body inclination of the driver, ensure that the driver has a better driving posture, reduce blind areas and improve driving safety. In addition, the first telescopic driving element 131 and the second telescopic driving element 132 are arranged in a crossed manner, so that the space occupied by the adjustment assembly 13 is reduced, and the compactness of the seat structure 10 is improved.
In summary, the following steps:
the embodiment of the invention provides a seat structure 10, which has the characteristics of being capable of adjusting the angle of a seat 12 and having a compact structure.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that the features in the above embodiments may be combined with each other and the present invention may be variously modified and changed without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A seat structure comprising a seat (12) and an adjustment assembly (13), the adjustment assembly (13) comprising a first telescopic drive (131) and a second telescopic drive (132);
the first telescopic driving piece (131) and the second telescopic driving piece (132) are arranged in a crossed mode, the bottom ends of the first telescopic driving piece and the second telescopic driving piece are respectively hinged to a bottom plate of the cab (20), and the top ends of the first telescopic driving piece and the second telescopic driving piece are respectively hinged to the seat (12);
the first telescopic driving part (131) and the second telescopic driving part (132) can be telescopic so as to adjust the front and back pitch angle of the seat (12).
2. The seat structure of claim 1, wherein the first and second telescopic drives (131, 132) are each located in a plane perpendicular to a backrest (122) and a seat cushion (121) of the seat (12).
3. The seating structure of claim 1, wherein the adjustment assembly (13) further comprises a first upper hinge (135), a first lower hinge (136), a second upper hinge (137), and a second lower hinge (138);
the top end of the first telescopic driving piece (131) is hinged with the seat (12) through the first upper hinge piece (135); the bottom end of the first telescopic driving piece (131) is hinged with the bottom plate through the first lower hinge piece (136); the top end of the second telescopic driving piece (132) is hinged with the seat (12) through the second upper hinge piece (137); the bottom end of the second telescopic driving piece (132) is hinged with the bottom plate through the second lower hinge piece (138);
the first upper hinge (135), the first lower hinge (136), the second upper hinge (137) and the second lower hinge (138) are revolute pairs, and respective rotation axes are parallel to a plane of a backrest (122) of the seat (12) and a plane of a cushion (121) of the seat (12).
4. The seat structure as claimed in claim 1, characterized in that the first telescopic drive (131) and the second telescopic drive (132) are both electric pushrods.
5. The seat structure according to claim 1, characterized in that the seat structure (10) further comprises a control assembly (15), the control assembly (15) comprising a first angle sensor (151) and a main controller (153) electrically connected to each other, the main controller (153) further being electrically connected to the first and second telescopic drives (131, 132), respectively;
the first angle sensor (151) is disposed on the seat (12) and is configured to detect the pitch angle of the seat (12), and the main controller (153) is capable of controlling the first telescopic driving member (131) and/or the second telescopic driving member (132) to be telescopic according to the pitch angle so as to adjust the pitch angle of the seat (12).
6. The seat structure according to any one of claims 1 to 5, wherein the adjustment assembly (13) further comprises a third telescopic driving member (133), a bottom end of the third telescopic driving member (133) is used for being hinged to the bottom plate, a top end of the third telescopic driving member (133) is hinged to the seat (12), and the third telescopic driving member (133) can be telescopic to drive the seat (12) to swing left or right relative to the bottom plate so as to adjust the left-right inclination angle of the seat (12).
7. The seat structure as claimed in claim 6, characterized in that the third telescopic drive (133) is vertically arranged.
8. The seat structure according to claim 6, characterized in that the seat structure (10) further comprises a control assembly (15), the control assembly (15) comprising a second angle sensor (152) and a main controller (153) electrically connected to each other, the main controller (153) being further electrically connected to the third telescopic drive (133), respectively;
the second angle sensor (152) is disposed on the seat (12) and is configured to detect the left and right tilt angles of the seat (12), and the main controller (153) is capable of controlling the third telescopic driving member (133) to be telescopic according to the left and right tilt angles so as to adjust the left and right tilt angles of the seat (12).
9. The seat structure as claimed in any one of claims 1-5, characterized in that the adjustment assembly (13) further comprises a third telescopic drive (133) and a fourth telescopic drive;
the third telescopic driving piece (133) and the fourth telescopic driving piece are arranged in a crossed manner, the bottom ends of the third telescopic driving piece and the fourth telescopic driving piece are hinged to a bottom plate of the cab (20), and the top ends of the third telescopic driving piece and the fourth telescopic driving piece are hinged to the seat (12);
the third telescopic driving piece (133) and the fourth telescopic driving piece can be both telescopic so as to adjust the left and right inclination angles of the seat (12).
10. A working machine, characterized by comprising a cabin (20) and a seat structure (10) according to any one of claims 1-9, wherein the first telescopic drive member (131) and the second telescopic drive member (132) are each hinged at their lower end to the floor of the cabin (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010376314.7A CN111376799A (en) | 2020-05-08 | 2020-05-08 | Seat structure and engineering machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010376314.7A CN111376799A (en) | 2020-05-08 | 2020-05-08 | Seat structure and engineering machinery |
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| CN111376799A true CN111376799A (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010376314.7A Pending CN111376799A (en) | 2020-05-08 | 2020-05-08 | Seat structure and engineering machinery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082630A1 (en) * | 2022-10-19 | 2024-04-25 | 上海三一重机股份有限公司 | Seat adjustment apparatus, cab and work machine |
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