CN211139121U - Telescopic seat armrest, seat and excavator - Google Patents
Telescopic seat armrest, seat and excavator Download PDFInfo
- Publication number
- CN211139121U CN211139121U CN201922423720.XU CN201922423720U CN211139121U CN 211139121 U CN211139121 U CN 211139121U CN 201922423720 U CN201922423720 U CN 201922423720U CN 211139121 U CN211139121 U CN 211139121U
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- armrest
- seat
- retractable
- handrail
- excavator
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Abstract
The application provides a scalable armrest, seat and excavator relates to excavator technical field, and this application passes through drive assembly drive second armrest component and moves for first armrest component along first direction, includes: a first armrest member, at least a portion of the first armrest member extending in a first direction; a second armrest member provided to the first armrest member; a drive assembly for driving the second handrail member to move relative to the first handrail member in a first direction. This application passes through drive assembly drive second handrail component and moves for first handrail component along first direction for scalable seat handrail can stretch out and draw back, is applied to the seat with it, has solved to a certain extent among the prior art technical problem that the handrail of seat after the position control can take place to interfere with the operating handle of excavator.
Description
Technical Field
The application relates to the technical field of excavators, in particular to a telescopic seat armrest, a seat and an excavator.
Background
During the use of the excavator, an operator can adjust the front and rear positions of the seat of the excavator, however, the armrest of the seat after the position adjustment interferes with the operation handle of the excavator.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a retractable armrest for a seat, a seat and an excavator, and aims to solve the technical problem that in the prior art, the armrest of the seat after position adjustment interferes with the operating handle of the excavator to a certain extent.
In a first aspect, the present application provides a retractable armrest mounted to a seat body, the retractable armrest comprising:
a first armrest member, at least a portion of the first armrest member extending in a first direction;
a second armrest member provided to the first armrest member;
a drive assembly for driving the second handrail member to move relative to the first handrail member in the first direction.
Preferably, the second handrail member is sleeved on the outer side of the first handrail member, and the driving assembly is arranged between the outer side of the first handrail member and the inner side of the second handrail member.
Preferably, the driving assembly includes a nut, a lead screw, and a driving motor, an axial direction of the lead screw is parallel to the first direction, the nut is sleeved on an outer side portion of the lead screw and is disposed on the first handrail member, the driving motor is connected to the second handrail member, and the driving motor can drive the lead screw to rotate so that the lead screw moves along the axial direction of the lead screw.
Preferably, the drive assembly comprises:
a drive power source disposed on the second handrail member for supplying power to the drive motor.
Preferably, the retractable chair armrest further comprises a control system for controlling the driving motor to rotate forward or backward.
Preferably, the retractable seat armrest further comprises a travel switch provided at an end of the second armrest member remote from the seat body in the first direction, the travel switch being electrically connected to the control system;
when the travel switch touches an obstacle, the control system controls the driving motor to stop rotating.
Preferably, the retractable seat further comprises a rotation shaft provided to the first armrest member and used to rotatably mount the retractable seat armrest to the seat main body.
Preferably, a first one of the first armrest member and the second armrest member is provided with a groove portion extending in the first direction, and a second one of the first armrest member and the second armrest member is provided with a moving member engaged with the groove portion.
In a second aspect, the present application provides a seat comprising a retractable armrest as described above and a seat body to which the retractable armrest is mounted.
In a third aspect, the present application provides an excavator comprising a seat as described above.
This application passes through drive assembly drive second handrail component and moves for first handrail component along first direction for scalable seat handrail can stretch out and draw back, is applied to the seat with it, has solved to a certain extent among the prior art technical problem that the handrail of seat after the position control can take place to interfere with the operating handle of excavator.
In order to make the aforementioned objects, features and advantages of the present application more 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 application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 shows a schematic view of a retractable chair armrest in a retracted state in an embodiment of the present application;
fig. 2 shows a schematic view of a retractable chair armrest in an extended state in an embodiment of the present application.
Reference numerals:
1-a first armrest member; 2-a second handrail member; 3-a nut; 4-a lead screw; 5-a travel switch; 6-a rotating shaft; 7-driving the motor.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
FIG. 1 shows a schematic view of a retractable chair armrest in a retracted state in an embodiment of the present application; fig. 2 shows a schematic view of a retractable chair armrest in an extended state in an embodiment of the present application.
Referring to fig. 1 and 2, the present embodiment provides a retractable armrest for a seat comprising: a first handrail member, a second handrail member, a drive assembly, a control system, a forming switch and a rotating shaft. The connection relationship and the operation principle between the above components will be described in detail below.
In an embodiment, the retractable seat armrest may be mounted to a seat body, in which the retractable seat armrest functions as an armrest of a seat described below. In an embodiment, at least part of the first handrail member 1 extends in the first direction. The first direction herein is a direction defined for convenience of description of features, and the first direction may be understood as a direction in which a portion of the first armrest member 1 extends in parallel with a direction directed to a steering wheel of the excavator by a seat described below in a state where the retractable seat armrest is mounted to the seat body described below, which is mounted to a cab of the excavator described below.
In an embodiment, the first armrest member 1 may be formed as a pillar member extending entirely in the first direction. The second handle member 2 may be formed as a sleeve member extending entirely in the first direction, and the sleeve member may be fitted over the outer side portion of the pillar member. In an embodiment, the drive assembly is adapted to drive the sleeve member in a first direction relative to the post member to enable the sleeve member and post member as a whole to be contracted or extended.
In an embodiment, a first one of the column member and the sleeve member may be provided with a groove portion extending along the first direction, and a second one of the column member and the sleeve member may be provided with a moving member cooperating with the groove portion, so as to facilitate good cooperation between the column member and the sleeve member for smoother relative movement. The following will be exemplified with the orientation shown in fig. 1 and 2.
In an embodiment, the upper end face of the column member may be fitted with an upper inner side portion (hereinafter, fitting side portion) of the sleeve member. A dovetail groove (not shown) extending in the first direction may be formed on the upper end surface of the column member, a slider matching the shape of the cross section of the dovetail groove may be attached to the mating side portion, and the slider is fitted into the dovetail groove via the left side of the orientation shown in the drawing, so that the sleeve member can smoothly slide relative to the column member while being fitted over the outer side portion of the column member. In addition, due to the adoption of the dovetail grooves and the sliding blocks matched with the cross sections of the dovetail grooves in shape, downward overturning movement of the sleeve component relative to the column component due to gravity after the sleeve component extends for a certain length can be prevented to a certain extent, and the number of the sliding blocks can be also provided, so that the movement can be prevented more favorably.
In an embodiment, the driving assembly may be installed between a lower end surface of the column member and a lower inner side portion (hereinafter, referred to as a driving side portion) of the sleeve member, and the column member and the sleeve member are engaged with each other, so that the installation space of the driving assembly is more reasonably allocated, and the operation of an operator is not affected by the fact that the upper end of the handrail is too protruded when the driving assembly is installed between the upper end surface of the column member and the engaging side portion of the sleeve member.
In an embodiment, the drive assembly may comprise a nut 3, a lead screw 4 and a drive motor 7. The axial of lead screw 4 can be parallel with first direction, and the outside portion of lead screw 4 can be located to the cover of nut 3 and set up in the post component, and driving motor 7 can be connected with the drive lateral part of sleeve component, and driving motor 7 can drive lead screw 4 rotatory, so lead screw 4 will be relative to the nut 3 that sets up in the lower terminal surface of post component along the axial motion of lead screw 4 in rotatory time for lead screw 4 drives driving motor 7 again and then drives the sleeve component and move along first direction for the post component.
In an embodiment, the driving assembly may further comprise a driving power source, which may also be disposed at the driving side of the sleeve member and electrically connected to the driving motor 7 to supply power to the driving motor 7. The retractable chair armrest may also include a control system for controlling the forward or reverse rotation of the drive motor 7. In an embodiment, the control system may be disposed between the driving power supply and the driving motor 7, and the control system may include a control circuit for controlling the forward and reverse rotation of the motor, and a first normally-open inching switch for controlling the forward rotation circuit to be connected and a second normally-open inching switch for controlling the reverse rotation circuit to be connected.
In an embodiment, it may be defined that when the driving motor 7 rotates forward, the sleeve member extends relative to the column member, and specifically, the first normally open jog switch may be pressed to close the forward rotation control circuit, and when the extended length of the sleeve member satisfies a requirement, the first normally open jog switch may be released to stop the rotation of the driving motor 7. Likewise, it may be defined that the sleeve member is contracted with respect to the column member when the driving motor 7 is reversely rotated, and specifically, the second normally open jog switch may be pressed to close the control reverse loop, and when the contracted length of the sleeve member satisfies a requirement, the second normally open jog switch may be released to stop the rotation of the driving motor 7.
In practical applications, particularly when the drive motor 7 is rotated in the forward direction to drive the sleeve member to extend relative to the column member, it may occur that the left end of the sleeve member in the illustration touches other components in the cab of the excavator, which will be described below, resulting in damage to the components or damage to the sleeve member and even to the drive assembly. For this purpose, the retractable seat armrest may further include a stroke switch 5, the stroke switch 5 may be disposed at a left end of the sleeve member (i.e., an end of the sleeve member that is away from the seat body described below in the first direction) in the drawing, the stroke switch 5 may be electrically connected to the control system, and when the stroke switch 5 is triggered by touching an obstacle, a control circuit in the control system cuts off the power supply from the driving power source to the driving motor 7, so that the rotation of the driving motor is stopped, thereby playing a protective role.
It should be noted that the forward and reverse rotation circuit of the motor is a circuit known in the prior art, and the travel switch is a component known in the prior art, and those skilled in the art can select the circuit according to actual needs. In addition, the driving side portion of the sleeve member may be a plate member detachably connected to the main body of the sleeve member (when the plate member is detached from the sleeve member, an installation notch is formed below the sleeve member), and when the sleeve member is installed on the column member, the sleeve member may be first sleeved on the outer side portion of the column member, the driving power supply, the driving motor 7, the lead screw 4, and the nut 3 may be installed through the installation notch, and finally the plate member may be installed on the main body of the sleeve member, and the installation notch may be closed.
In an embodiment, the retractable seat armrest may further include a rotation shaft 6, and the rotation shaft 6 is provided to the pillar member and serves to rotatably mount the retractable seat armrest to a seat body described below. In an embodiment, the rotation shaft 6 may be installed at one end of the pillar member in the first direction near a seat main body described below, so that the retractable seat armrest can be rotated at least to the right from a horizontal position in the drawing to a vertical position for an operator to sit on or leave the seat described below.
The present embodiment further provides a seat, including the retractable armrest as described above, and further including a seat body, where the retractable armrest is rotatably mounted on the seat body through a rotating shaft 6, and the beneficial effects of the seat are the same as those of the retractable armrest, and are not described herein again.
The embodiment also provides an excavator, which comprises the seat, wherein the seat can be installed on a cab of the excavator. Because the armrest of the seat is a telescopic armrest, an operator can press the second normally-open inching switch to contract the armrest and then adjust the seat forwards, so that the interference with the operating handle of the excavator can be avoided. When the seat is adjusted backwards, the first normally open inching switch can be inching to enable the armrests to be properly extended. The technical problem that the armrest of the seat after position adjustment can interfere with the operating handle in the prior art is solved to a certain extent.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all changes that can be made in the details of the description and drawings, or directly/indirectly implemented in other related technical fields, are intended to be embraced therein without departing from the spirit of the present application.
Claims (10)
1. A retractable armrest for a seat mounted to a seat body, the retractable armrest comprising:
a first armrest member, at least a portion of the first armrest member extending in a first direction;
a second armrest member provided to the first armrest member;
a drive assembly for driving the second handrail member to move relative to the first handrail member in the first direction.
2. The retractable armrest of claim 1,
the second handrail member is sleeved on the outer side of the first handrail member, and the driving assembly is arranged between the outer side of the first handrail member and the inner side of the second handrail member.
3. The retractable armrest of claim 2, wherein the drive assembly comprises a nut, a threaded shaft, and a drive motor, wherein an axial direction of the threaded shaft is parallel to the first direction, the nut is disposed on an outer side portion of the threaded shaft and is disposed on the first armrest member, the drive motor is connected to the second armrest member, and the drive motor is capable of driving the threaded shaft to rotate so that the threaded shaft moves along the axial direction of the threaded shaft.
4. The retractable armrest of claim 3, wherein the drive assembly comprises:
a drive power source disposed on the second handrail member for supplying power to the drive motor.
5. The retractable chair armrest of claim 3 or 4, further comprising a control system for controlling the drive motor to rotate in either a forward or reverse direction.
6. The retractable seat armrest of claim 5, further comprising a travel switch disposed at an end of the second armrest member distal from the seat body in the first direction, the travel switch being electrically connected to the control system;
when the travel switch touches an obstacle, the control system controls the driving motor to stop rotating.
7. The retractable chair armrest of claim 6, further comprising a rotating shaft disposed on the first armrest member for rotatably mounting the retractable chair armrest to the seat body.
8. The retractable armrest of claim 7,
a first one of the first armrest member and the second armrest member is provided with a groove portion extending in the first direction, and a second one of the first armrest member and the second armrest member is provided with a moving member that engages with the groove portion.
9. A seat comprising a retractable seat armrest as claimed in any one of claims 1 to 8 and a seat body to which the retractable seat armrest is mounted.
10. An excavator comprising a seat as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423720.XU CN211139121U (en) | 2019-12-27 | 2019-12-27 | Telescopic seat armrest, seat and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423720.XU CN211139121U (en) | 2019-12-27 | 2019-12-27 | Telescopic seat armrest, seat and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211139121U true CN211139121U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922423720.XU Active CN211139121U (en) | 2019-12-27 | 2019-12-27 | Telescopic seat armrest, seat and excavator |
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| Country | Link |
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| CN (1) | CN211139121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406655A (en) * | 2020-11-25 | 2021-02-26 | 东风汽车集团有限公司 | Auxiliary instrument panel armrest, control method of auxiliary instrument panel armrest and vehicle |
-
2019
- 2019-12-27 CN CN201922423720.XU patent/CN211139121U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406655A (en) * | 2020-11-25 | 2021-02-26 | 东风汽车集团有限公司 | Auxiliary instrument panel armrest, control method of auxiliary instrument panel armrest and vehicle |
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