CN210530561U - Connection structure, side door mounting structure and excavator - Google Patents
Connection structure, side door mounting structure and excavator Download PDFInfo
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- CN210530561U CN210530561U CN201920932679.6U CN201920932679U CN210530561U CN 210530561 U CN210530561 U CN 210530561U CN 201920932679 U CN201920932679 U CN 201920932679U CN 210530561 U CN210530561 U CN 210530561U
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- side door
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- 230000009471 action Effects 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a mechanical connection technical field particularly, relates to a connection structure, side door mounting structure and excavator. A connecting structure comprises a support, a connecting piece, a first connecting rod and a second connecting rod, wherein the support, the connecting piece, the first connecting rod and the second connecting rod are sequentially connected end to form a four-bar mechanism. The connecting piece is used for moving relative to the support under the action of external force and driving the first connecting rod and the second connecting rod to move; the first connecting rod has a movable state capable of rotating relative to the second connecting rod and a limit state stopping relative to the second connecting rod. When the connecting piece drives the first connecting rod to move in the first preset direction under the action of external force, the first connecting rod moves to a limiting state from a moving state, the connecting piece is limited relative to the support along the rotation in the second preset direction, and the first preset direction is opposite to the second preset direction. The connecting structure can effectively improve the support stability and reduce the manufacturing and using cost.
Description
Technical Field
The utility model relates to a mechanical connection technical field particularly, relates to a connection structure, side door mounting structure and excavator.
Background
At present, a connecting mechanism for rotatably connecting a door body is mostly a gas spring rotating mechanism, and the connecting mechanism plays a role in supporting a side door through the resistance of a gas spring.
However, the gas spring has the problem that the supporting effect is gradually reduced due to the gradual attenuation of the resistance action along with the increase of the service time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connection structure, its simple structure when improving support stability has reduced the cost of manufacturing.
The utility model discloses an aim still includes, provides a side door mounting structure, its simple structure, simple to operate to its gyration space is little, when improving stability in use, can also reduce the cost of using.
The utility model discloses an aim still includes, provides an excavator, and it can reduce the degree of difficulty of installation through adopting foretell side door mounting structure, improves the efficiency of installation to can reduce the gyration space of side door connecting piece, simultaneously, can also improve the stability of using, and then reduce the cost of using.
The embodiment of the utility model discloses a can realize like this:
the embodiment of the utility model provides a connecting structure, which comprises a support, a connecting piece, a first connecting rod and a second connecting rod, wherein the support, the connecting piece, the first connecting rod and the second connecting rod are sequentially connected end to form a four-bar mechanism;
the connecting piece is used for moving relative to the support under the action of external force and driving the first connecting rod and the second connecting rod to move; the first connecting rod has a movable state capable of rotating relative to the second connecting rod and a limit state of stopping relative to the second connecting rod;
when the connecting piece drives the first connecting rod to move in the first preset direction under the action of external force, the first connecting rod moves to a limiting state from a moving state, the connecting piece is limited relative to the support along the rotation in the second preset direction, and the first preset direction is opposite to the second preset direction.
Optionally, the first connecting rod includes a first connecting portion, and the second connecting rod includes a second connecting portion and a limiting portion;
the first connecting portion is used for being connected with the second connecting portion in a rotating mode, and the limiting portion is used for abutting against the first connecting portion to stop the first connecting portion.
Optionally, the limiting part comprises a limiting table arranged on the second connecting rod.
Optionally, the limiting part comprises a limiting pin arranged on the second connecting rod.
Optionally, the axis of rotation of the link relative to the mount is parallel to the axis of rotation of the first link relative to the second link.
Optionally, the support includes a blocking portion, and the blocking portion is configured to abut against the second connecting rod to limit rotation of the second connecting rod in the first preset direction.
The embodiment of the utility model also provides a side door mounting structure, which comprises a side door, a frame body and the connecting structure;
the side door passes through connection structure and is connected with the support body rotation to rotate for the support body along first predetermined direction under the effect of external force at the side door, and make first connecting rod move to the state of spacing by the active state, keep opening the state of support body.
Optionally, the side door is connected with the connecting piece, and the support is fixedly connected with the frame body.
The embodiment of the utility model also provides an excavator, which comprises a cab and the side door mounting structure;
the support body is fixedly connected with the cab, and when the support body is opened, the cab is opened.
Optionally, the side door may be rotatable upwardly in a vertical direction relative to the cab under the influence of external force.
The utility model discloses connection structure, side door mounting structure and excavator's beneficial effect includes, its effect in order to play spacing support through the rigidity between the connecting rod is spacing to can improve the support stability in the use, and increase of service life, and then reduce the cost of making and using.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a connection structure in an embodiment of the present invention in an active state;
fig. 2 is a schematic structural view of the connection structure in the embodiment of the present invention in a limit state;
fig. 3 is a schematic view illustrating a connection between the first link and the second link according to an embodiment of the present invention.
Icon: 100-a connecting structure; 110-a support; 120-a connector; 130-a first link; 140-a second link; 111-a barrier; 131-a first connection; 141-a second connection; 142-a limiting part.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
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.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a connection structure in an embodiment of the present invention in an active state; fig. 2 is a schematic structural diagram of the connection structure in the embodiment of the present invention when the connection structure is in the limit state.
The embodiment provides a connection structure 100, which includes a support 110, a connection member 120, a first connection rod 130 and a second connection rod 140, wherein the support 110, the connection member 120, the first connection rod 130 and the second connection rod 140 are sequentially connected end to form a four-bar linkage.
The connecting member 120 is used for moving relative to the support 110 under the action of an external force and driving the first connecting rod 130 and the second connecting rod 140 to move; the first link 130 has an active state in which it is rotatable with respect to the second link 140 and a stop state in which it is stopped with respect to the second link 140.
When the connecting member 120 drives the first connecting rod 130 to move in the first preset direction under the action of external force, the first connecting rod 130 moves from the active state to the limiting state, the connecting member 120 is limited to rotate along the second preset direction relative to the support 110, and the first preset direction is opposite to the second preset direction.
According to the connection structure 100 provided in the present embodiment, the operation principle of the connection structure 100 is:
the support 110, the connecting member 120, the first connecting rod 130 and the second connecting rod 140 of the connecting structure 100 are sequentially connected in a rotating manner to form a four-bar linkage, so that when the connecting member 120 moves under the action of external force, the first connecting rod 130 and the second connecting rod 140 can be driven to move relative to the support 110. The first connecting rod 130 is rotatably connected with the second connecting rod 140, and the first connecting rod 130 has a movable state and a limiting state relative to the second connecting rod 140; when the first link 130 is in the active state, the first link 130 can rotate relative to the second link 140, and at this time, the connecting member 120 can drive the first link 130 to move; when the first link 130 is in the limit state, the rotation of the first link 130 relative to the second link 140 is limited, and the support 110, the connecting member 120, the first link 130 and the second link 140 are sequentially and rotatably connected to form a four-bar linkage mechanism, so that once the movement of the first link 130 is limited, the movement of the connecting member 120 can be limited.
Moreover, when the connecting element 120 drives the first connecting rod 130 to move under the action of an external force, the first connecting rod 130 can move from the active state to the limiting state, so that the rotation of the connecting element 120 relative to the support 110 along the second predetermined direction is limited, and the first predetermined direction is opposite to the second predetermined direction.
Therefore, in the using process of the connecting structure 100, the function of the connecting structure 100 can be adjusted according to different states of the first connecting rod 130, so that the connecting structure can be in a movable state and a state of limited movement, and the using requirement can be met. Specifically, the movement of the first link 130 is limited, when the first link 130 is in the movable state, the connection structure 100 can move, and when the first link 130 is in the limiting state, the movement of the connection structure 100 in the second predetermined direction is limited.
It should be noted that, as can be seen from the above, the connection structure 100 can be used as a structure for rotationally connecting two target members, and the two target members connected by the connection structure 100 have an active state and a limiting state, that is, the mutual rotation of the two target members is selectively limited, and the specific limitation is the same as that described above, and therefore, the detailed description thereof is omitted here.
The present embodiment provides a connection structure 100 with at least the following advantages:
the connecting structure 100 has a simple structure, and plays a role of limiting and supporting through rigidity limitation between the first connecting rod 130 and the second connecting rod 140, so that the supporting stability in the using process can be improved, the service life is prolonged, and the manufacturing and using costs are reduced. It should be noted that, in this embodiment, the first preset direction is a counterclockwise direction, and the second preset direction is a clockwise direction; and in the utility model discloses an in other embodiments, can also set up first preset direction as clockwise, set up the second preset direction as anticlockwise.
Further, please refer to fig. 1-3, fig. 3 is a schematic connection diagram of a first connecting rod and a second connecting rod according to an embodiment of the present invention; in order to enable the first link 130 to have a movable state in which the first link 130 is rotatable relative to the second link 140 and a position-limiting state in which the first link 130 is stopped relative to the second link 140, when the first link 130 is disposed, the first link 130 may include the first connection portion 131, and the second link 140 may include the second connection portion 141 and the position-limiting portion 142. The first connecting portion 131 is used for being rotatably connected with the second connecting portion 141, and the limiting portion 142 is used for abutting against the first connecting portion 131 to stop the first connecting portion 131.
Therefore, when the first link 130 is rotatably connected to the second link 140, the second link 140 is provided with the stopper portion 142, so that when the first link 130 rotates to a position abutting against the stopper portion 142 with respect to the second link 140, the rotation of the first link 130 in a direction away from the stopper portion 142 can be restricted by the stopper portion 142. Therefore, when the first link 130 is not abutted against the limiting portion 142, the rotation thereof is not limited, so that the first link 130 is in a movable state, and when the first link 130 is abutted against the limiting portion 142, the movement thereof is limited, so that the first link 130 is in a limiting state.
Next, it should be noted that, while the first link 130 is rotatably connected to the second link 140, the first link 120 and the support 110 are rotatably connected to form a four-bar linkage, and in the four-bar linkage, the movement of the link 120 can drive the state of the first link 130 to change.
Specifically, when the first connecting rod 130 is in the active state, that is, the first connecting rod 130 is not abutted to the limiting portion 142, the connecting member 120 moves along the first preset direction under the action of the external force, so as to drive the first connecting rod 130 and the second connecting rod 140 to move, in this process, the connecting member 120 drives the first connecting rod 130 to rotate along the second preset direction relative to the second connecting rod 140, and drives the second connecting rod 140 to rotate along the first preset direction relative to the support 110, and when the first connecting rod 130 rotates along the second preset direction to be abutted to the limiting portion 142, the movement of the first connecting rod 130 along the second preset direction is limited, so that the movement of the connecting member 120 along the second preset direction is limited, thereby limiting the movement of the connecting structure 100 in the second preset direction.
In addition, in order to convert the first connecting rod 130 from the limit state to the active state, the first connecting rod 130 is separated from the limit portion 142, so that the first connecting rod 130 can be driven to move along the first predetermined direction under the action of external force.
In addition, in order to drive the first link 130 to move along the first predetermined direction, a mode of directly driving the first link 130 to move through an external force may be adopted, and a mode of driving the connecting member 120 to move in the first predetermined direction through an external force may also be adopted.
Further, when the limiting portion 142 is provided, the limiting portion 142 may be a limiting table provided on the second connecting rod 140 or a limiting pin provided on the second connecting rod 140.
In the present embodiment, in order to limit the movement direction of the link 120 by limiting the movement of the first link 130, it is necessary that the rotation plane of the link 120 is parallel to or coincides with the rotation plane of the first link 130, and thus the axis of the link 120 rotating with respect to the holder 110 is parallel to the axis of the first link 130 rotating with respect to the second link 140.
In the present embodiment, the rotation axes of the respective rotation joints of the four-bar linkage formed by sequentially and rotatably connecting the support 110, the connecting member 120, the first link 130 and the second link 140 are all parallel.
Besides, in the process that the connecting member 120 drives the second connecting rod 140 to rotate, in order to ensure that the first connecting rod 130 can move to the position abutted to the limiting portion 142, the moving position of the second connecting rod 140 can be limited, that is, the movement of the second connecting rod 140 relative to the support 110 in the first preset direction is limited, so that when the connecting member 120 moves in the first preset direction, the first connecting rod 130 can move to the position abutted to the limiting portion 142 along the second preset direction relative to the second connecting rod 140. Therefore, the support 110 includes a blocking portion 111, and the blocking portion 111 is configured to abut against the second link 140 to limit the rotation of the second link 140 in the first preset direction.
Further, based on the above-mentioned connection structure 100, the present embodiment also provides a side door mounting structure (not shown in the form of drawings), which includes a side door, a frame body, and the above-mentioned connection structure 100.
Wherein, the side door is connected with the connecting member 120, and the support 110 is fixedly connected with the frame body, so that the side door is rotatably connected with the frame body.
When the side door rotates for the support body along first predetermined direction under the effect of external force, can drive connecting piece 120 and rotate, and then can drive first connecting rod 130 and the motion of second connecting rod 140 to when making first connecting rod 130 move to limit state by the active state, the rotation of direction is predetermine along the second to restriction side door, so that the side door can keep opening the state of support body.
It should be noted that the first preset direction is a door opening direction of the side door, and the second preset direction is a door closing direction of the side door.
Further, based on the above-described side door mounting structure, the present embodiment also provides an excavator (not shown in the form of the drawings) including a cab and the above-described side door mounting structure.
Wherein, support body and driver's cabin fixed connection to when the support body is opened, the driver's cabin is opened.
In addition, when the door opening direction of the side door is vertical and rotates upwards relative to the cab, the door opening direction is the side door which is turned upwards along the vertical direction, namely the door opening direction is turned upwards. In this case, since the excavator employs the side door mounting structure described above, the door can be kept open by the side door mounting structure.
Specifically, in the present embodiment, the first predetermined direction is a door opening direction, and the second predetermined direction is a door closing direction. When the door needs to be opened, the side door is driven to turn upwards under the action of external force, so that the connecting piece 120 moves under the action of the external force and drives the first connecting rod 130 and the second connecting rod 140 to move; when the first connecting rod 130 moves to the limit state, at this time, the rotation of the first connecting rod 130 and the connecting member 120 in the second preset direction is limited, so that the movement of the side door in the door closing direction is limited, and the door opening state of the side door can be maintained.
Therefore, the excavator can simplify the rotating connection structure 100 by adopting the side door installation structure, so that the installation difficulty is reduced, and the installation efficiency is improved. And because side door mounting structure's simple structure, and then can reduce the space that occupies. Meanwhile, the use stability can be improved, and the use cost is further reduced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A connecting structure characterized in that:
the connecting structure comprises a support (110), a connecting piece (120), a first connecting rod (130) and a second connecting rod (140), and the support (110), the connecting piece (120), the first connecting rod (130) and the second connecting rod (140) are sequentially connected end to form a four-bar mechanism;
the connecting piece (120) is used for moving relative to the support (110) under the action of external force and driving the first connecting rod (130) and the second connecting rod (140) to move; the first connecting rod (130) has a movable state capable of rotating relative to the second connecting rod (140) and a limit state stopping relative to the second connecting rod (140);
when the connecting piece (120) drives the first connecting rod (130) to move along a first preset direction under the action of external force, the first connecting rod (130) moves to the limiting state from the moving state, the connecting piece (120) is limited relative to the support (110) along the rotation of a second preset direction, and the first preset direction is opposite to the second preset direction.
2. The connection structure according to claim 1, wherein:
the first connecting rod (130) comprises a first connecting part (131), and the second connecting rod (140) comprises a second connecting part (141) and a limiting part (142);
the first connecting portion (131) is used for being rotatably connected with the second connecting portion (141), and the limiting portion (142) is used for abutting against the first connecting portion (131) so as to stop the first connecting portion (131).
3. The connection structure according to claim 2, wherein:
the limiting part (142) comprises a limiting table arranged on the second connecting rod (140).
4. The connection structure according to claim 2, wherein:
the stopper (142) includes a stopper pin provided on the second link (140).
5. The connection structure according to claim 1, wherein:
the axis of rotation of the link (120) relative to the mount (110) is parallel to the axis of rotation of the first link (130) relative to the second link (140).
6. The connection structure according to claim 1, wherein:
the support (110) comprises a blocking part (111), and the blocking part (111) is used for abutting against the second connecting rod (140) so as to limit the rotation of the second connecting rod (140) in a first preset direction.
7. The utility model provides a side door mounting structure which characterized in that:
the side door mounting structure comprises a side door, a frame body and a connecting structure according to any one of claims 1 to 6;
the side door passes through connection structure with the support body rotates to be connected, in order the side door is followed under the effect of external force first preset direction for the support body rotates, and makes first connecting rod (130) keep opening when moving to limit state by active state the state of support body.
8. The side door mounting structure according to claim 7, wherein:
the side door is connected with the connecting piece (120), and the support (110) is fixedly connected with the frame body.
9. An excavator, characterized in that:
the excavator comprises a cab and a side door mounting structure as claimed in any one of claims 7 to 8;
the frame body with driver's cabin fixed connection to when the frame body is opened, the driver's cabin is opened.
10. The excavator of claim 9 wherein:
the side door can rotate upwards relative to the cab along the vertical direction under the action of external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920932679.6U CN210530561U (en) | 2019-06-21 | 2019-06-21 | Connection structure, side door mounting structure and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920932679.6U CN210530561U (en) | 2019-06-21 | 2019-06-21 | Connection structure, side door mounting structure and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210530561U true CN210530561U (en) | 2020-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920932679.6U Active CN210530561U (en) | 2019-06-21 | 2019-06-21 | Connection structure, side door mounting structure and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210530561U (en) |
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2019
- 2019-06-21 CN CN201920932679.6U patent/CN210530561U/en active Active
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