CN217461801U - Link mechanism and cabinet adopting same - Google Patents
Link mechanism and cabinet adopting same Download PDFInfo
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- CN217461801U CN217461801U CN202221497019.8U CN202221497019U CN217461801U CN 217461801 U CN217461801 U CN 217461801U CN 202221497019 U CN202221497019 U CN 202221497019U CN 217461801 U CN217461801 U CN 217461801U
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- rod
- rod body
- cabinet door
- cabinet
- double
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Abstract
The utility model relates to a link mechanism, including the first body of rod, the second body of rod, the third body of rod, the fourth body of rod, the fifth body of rod and elastic component, the first body of rod, the second body of rod, the third body of rod from top to bottom parallel arrangement, the fourth body of rod respectively with the first body of rod, the second body of rod and third body of rod swing joint, the fifth body of rod forms two parallelogram structures with the first body of rod, the second body of rod and third body of rod swing joint respectively, two parallelogram structures are connected to elastic component one end, and the third body of rod is connected to the elastic component other end, and the elastic component constitutes two parallelogram structures's canceling release mechanical system. When the external force disappears, the elastic piece resets, the elastic piece pulls the shape of the double-parallelogram structure to restore to the initial state, and the pulling force of the elastic piece keeps pulling the double-parallelogram structure, so that the link mechanism generates a trend of moving towards the direction of the elastic piece.
Description
Technical Field
The utility model relates to a link mechanism and adopt this link mechanism's cabinet.
Background
The link Mechanism (link Mechanism), also called low-pair Mechanism, is one of the mechanical components, and refers to a Mechanism formed by connecting a plurality of (more than two) components with definite relative motion by low pairs (revolute pairs or moving pairs).
A planar linkage is a common drive mechanism, and the most basic and widely used type of the planar linkage is a four-member planar four-bar linkage.
The existing link mechanism has a single function, the deformation of the link mechanism can be realized only by being driven by external force in the whole movement process, the labor is not saved, the driving of the external force needs to be maintained if the deformation state of the link mechanism needs to be maintained, and the deformation state of the link mechanism cannot be maintained if the external force disappears.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide a link mechanism that can maintain a deformation state even when external force disappears.
A second object of the utility model is to provide a laborsaving when the cabinet door is opened or is closed, produces when the cabinet door is opened and promotes and maintain the cabinet door and keep the open mode, produces the pulling force when the cabinet door is closed and maintains the cabinet that the cabinet door kept the tight closed mode.
The first purpose of the utility model is realized like this:
the utility model provides a link mechanism, includes the first body of rod, the second body of rod, the third body of rod, the fourth body of rod, the fifth body of rod and elastic component, the first body of rod, the second body of rod, the third body of rod from top to bottom parallel arrangement, the fourth rod body respectively with the first body of rod, the second body of rod and third body of rod swing joint, the fifth body of rod forms two parallelogram structures with first body of rod, the second body of rod and third body of rod swing joint respectively, two parallelogram structures are connected to elastic component one end, and the third body of rod is connected to the elastic component other end, and the elastic component constitutes two parallelogram structure's canceling release mechanical system.
When external force overcomes the pulling force of the elastic piece to drive the double-parallelogram structure to deform, the link mechanism moves, the motion mode of the link mechanism is controlled to be simple, when the shape of the double-parallelogram structure is kept unchanged, the action of the link mechanism is kept unchanged, when the external force disappears, the elastic piece resets, the elastic piece pulls the shape of the double-parallelogram structure to restore to the initial state, and the pulling force of the elastic piece keeps pulling the double-parallelogram structure, so that the link mechanism generates a tendency of moving towards the direction of the elastic piece.
The first purpose of the utility model can also adopt the following technical measures to solve:
furthermore, the front side of the double-parallelogram structure extends outwards to form a front connecting part, and the rear side of the double-parallelogram structure extends outwards to form a rear connecting part.
Further, still include the connecting plate, preceding connecting portion and connecting plate swing joint.
Further, the front end portion of the first rod is bent downward to form the front connecting portion.
Furthermore, the front end part of the second rod body is bent downwards to form the front connecting part, and the rear end part of the second rod body is bent upwards to form the rear connecting part.
Furthermore, bolt holes are formed in the third rod body at intervals, the rear end portion of the third rod body bends upwards to form an elastic piece connecting portion, the elastic piece is a spring, one end of the spring is connected with the rear connecting portion, and the other end of the spring is connected with the elastic piece connecting portion.
Further, the junction of the fourth rod body and the first rod body, the junction of the second rod body and the third rod body adopt rivet connection, the junction of the fifth rod body and the first rod body, the junction of the second rod body and the third rod body adopt rivet connection, and the junction of the front connecting part and the connecting plate adopts rivet connection.
Furthermore, the second rod body and the third rod body are both provided with positioning clamping grooves used for limiting the deformation state of the double-parallelogram structure. The double-parallelogram structure of the link mechanism deforms, and the rivet just enters the corresponding positioning clamping groove, so that the deformation state of the double-parallelogram structure is limited, and the action of the link mechanism is kept unchanged.
The second purpose of the utility model is realized like this:
the utility model provides a cabinet, includes the cabinet door and the cabinet body, cabinet door lower extreme is connected on the cabinet body, and the cabinet door uses the junction to rotate as rotation center, link mechanism fixes on the lateral wall of internal chamber of cabinet, two parallelogram structure connection cabinet doors, when opening the cabinet door, thereby the cabinet door drives two parallelogram structure and produces deformation and produce thrust, promotes the cabinet door, and when closing the cabinet door, thereby the cabinet door drives two parallelogram structure and produces deformation and produce the pulling force, stimulates the cabinet door.
When the user opened the cabinet door, the pulling force that the user overcame the spring pulled the cabinet door outward, and when the cabinet door was opened gradually under the effect of external force, the relative center of rotation's of cabinet door gravity moment constantly strengthened, when the component force of the relative spring of gravity moment was greater than the spring pulling force, the door plant was automatic to be rotated down to the horizontality, and the cabinet door is automatic to be opened, makes the cabinet door open more laborsavingly.
When the cabinet door is completely opened, the double-parallelogram structure of the link mechanism deforms, and the rivet just enters the corresponding positioning clamping groove, so that the deformation state of the double-parallelogram structure is limited, the action of the link mechanism is kept unchanged, and the cabinet door is kept in an open state.
When a user closes the cabinet door, the user pushes up the cabinet door, the double-parallelogram structure of the connecting rod mechanism deforms, the rivet leaves the corresponding positioning clamping groove, when the cabinet door is closed gradually under the action of external force, the gravity moment of the cabinet door relative to the rotation center is reduced continuously, when the component force of the gravity moment relative to the spring is smaller than the tensile force of the spring, the door panel automatically rotates upwards to a vertical state, and the cabinet door is closed automatically, so that the cabinet door is closed more labor-saving.
When the cabinet door is closed, the pulling force of spring stimulates two parallelogram structures all the time and deforms toward the spring direction, and because two parallelogram structures and cabinet door connection, consequently the spring stimulates the cabinet door all the time through two parallelogram structures and moves toward the spring direction to make the cabinet door remain throughout and hug closely the cabinet body state, the cabinet door is closed more tightly.
The second purpose of the utility model can also adopt the following technical measures to solve:
further, still include buffer, buffer sets up on the cabinet door, and when closing the cabinet door, buffer supports and leans on the cabinet body. Be provided with buffer on the cabinet door, when closing the cabinet door, buffer supports and leans on at the cabinet body, avoids the cabinet door to touch the cabinet door fast under the pulling force effect of spring, prevents the tong, improves the security.
The utility model has the advantages as follows:
the utility model discloses, when the pulling force that overcomes the elastic component as external force drove two parallelogram structures and produces deformation, link mechanism produced the motion, control link mechanism motion mode is simple, when two parallelogram structure shapes remain unchanged, link mechanism's action remains unchanged, when external force disappears, the elastic component resets, the shape of the two parallelogram structures of elastic component pulling resumes to initial condition, and the pulling force of elastic component keeps the two parallelogram structures of pulling, make link mechanism produce the trend towards the elastic component direction removal.
The utility model discloses, when the user opened the cabinet door, the user overcome the pulling force of spring and draw the cabinet door outward, and when the cabinet door was opened gradually under the effect of external force, the gravity square of the relative center of rotation of cabinet door constantly strengthened, and when the component of the relative spring of gravity square was greater than spring tension, the door plant was automatic to the horizontality of down-rotation, and the cabinet door is automatic to be opened, makes the cabinet door open more laborsavingly.
The utility model discloses, when the cabinet door was opened completely, link mechanism's two parallelogram structures produced deformation, and the rivet gets into in the positioning channel section that corresponds just to the deformation state of two parallelogram structures of restriction maintains link mechanism action unchangeable, makes the cabinet door maintain the open mode.
The utility model discloses, when the user closed the cabinet door, the user pushed up the cabinet door, and link mechanism's two parallelogram structures produce deformation, and the rivet leaves the positioning channel section that corresponds, and when the cabinet door was closed under the effect of external force gradually, the relative gravity moment of centering of cabinet door constantly reduced, and when the component force of the relative spring of gravity moment was less than the spring pulling force, the door plant was automatic upwards rotated the vertical state, and cabinet door self-closing made the cabinet door close more laborsavingly.
The utility model discloses, when the cabinet door was closed, the pulling force of spring stimulates two parallelogram structures all the time and warp toward the spring direction, because two parallelogram structures and door connections, consequently the spring stimulates the cabinet door all the time through two parallelogram structures and moves toward the spring direction to make the cabinet door remain throughout and hug closely cabinet body state, the cabinet door is closed tighter.
The utility model discloses, be provided with buffer on the cabinet door, when closing the cabinet door, buffer supports and leans on at the cabinet body, avoids the cabinet door to touch the cabinet door fast under the pulling force effect of spring, prevents the tong, improves the security.
Drawings
Fig. 1 is a schematic view of the link mechanism (closed state).
Fig. 2 is a schematic view of the link mechanism (60 degree open state).
Fig. 3 is a schematic view of the link mechanism (open state).
Fig. 4 is another angle schematic view (open state) of the link mechanism.
Fig. 5 is a schematic view of the cabinet (cabinet door closed state).
Fig. 6 is another schematic view of the cabinet from an angle (with the cabinet door closed).
Fig. 7 is a schematic view of the cabinet (60 degree door open state).
Fig. 8 is a schematic view of the cabinet (fully open state of the cabinet door).
Detailed Description
The invention will be further described with reference to the following drawings and examples:
in an embodiment, referring to fig. 1 to 8, a cabinet includes a cabinet door 1, a cabinet body 2, a bolt 200, and a link mechanism 3, where a lower end of the cabinet door 1 is connected to the cabinet body 2, and the cabinet door 1 rotates around a joint as a rotation center to open or close the cabinet door 1.
The link mechanism 3 includes a first rod 4, a second rod 5, a third rod 6, a fourth rod 7, a fifth rod 8, an elastic member and a connecting plate 9, the elastic member is a spring 300, and the front end of the first rod 4 is bent downward to form a front connecting portion 41.
The front end of the second rod 5 is bent downwards to form a front connecting part 41, the rear end of the second rod 5 is bent upwards to form a rear connecting part 51, and the second rod 5 is provided with a positioning clamping groove 52 for limiting the deformation state of the double-parallelogram structure.
The first rod body 4, the second rod body 5 and the third rod body 6 are arranged in parallel from top to bottom, the fourth rod body 7 is movably connected with the first rod body 4, the second rod body 5 and the third rod body 6 respectively, and the joints of the fourth rod body 7 and the first rod body 4, the second rod body 5 and the third rod body 6 are connected through rivets 10.
The fifth rod body 8 is movably connected with the first rod body 4, the second rod body 5 and the third rod body 6 respectively, and the joints of the fifth rod body 8, the first rod body 4, the second rod body 5 and the third rod body 6 are connected through rivets 10.
The front connecting part 41 is movably connected with the connecting plate 9, and the connecting part of the front connecting part 41 and the connecting plate 9 is connected by a rivet 10.
The first rod body 4, the second rod body 5, the third rod body 6, the fourth rod body 7 and the fifth rod body 8 are connected to form a double-parallelogram structure, the front connecting portion 41 is located on the front side of the double-parallelogram structure, the rear connecting portion 51 is located on the rear side of the double-parallelogram structure, one end of the spring 300 is connected with the rear connecting portion, the other end of the spring 300 is connected with the elastic piece connecting portion 62, and the elastic piece constitutes a reset mechanism of the double-parallelogram structure 100.
The link mechanism 3 is arranged in the cabinet body 2, the bolt 200 penetrates through the bolt hole 61 and is locked on the side wall of the inner cavity of the cabinet body 2, the link mechanism 3 is fixed in the cabinet body 2, the bolt 200 penetrates through the connecting plate 9 and is locked on the cabinet door 1, and the connecting plate 9 is connected with the cabinet door 1.
The working principle is as follows:
when a user opens the cabinet door 1, the user overcomes the pulling force of the spring 300 to pull the cabinet door 1 outwards, when the cabinet door 1 is opened gradually under the action of external force, the gravity moment of the cabinet door 1 relative to the center of rotation is increased continuously, when the component force of the gravity moment relative to the spring 300 is greater than the pulling force of the spring 300, the door plate automatically rotates downwards to a horizontal state, the cabinet door 1 is opened automatically, and the opening of the cabinet door 1 is more labor-saving.
When the cabinet door 1 is completely opened, the double-parallelogram structure 100 of the link mechanism 3 deforms, and the rivet 10 just enters the corresponding positioning clamping groove 52, so that the deformation state of the double-parallelogram structure 100 is limited, the action of the link mechanism 3 is kept unchanged, and the cabinet door 1 is kept in an opened state.
When a user closes the cabinet door 1, the user pushes up the cabinet door 1, the double-parallelogram structure 100 of the link mechanism 3 deforms, the rivet 10 leaves the corresponding positioning clamping groove 52, when the cabinet door 1 is gradually closed under the action of external force, the gravity moment of the cabinet door 1 relative to the rotation center is continuously reduced, when the component force of the gravity moment relative to the spring 300 is smaller than the tensile force of the spring 300, the door panel automatically rotates upwards to a vertical state, the cabinet door 1 is automatically closed, and the cabinet door 1 is more labor-saving to close.
Moreover, when the cabinet door 1 is closed, the tension of the spring 300 always pulls the double-parallelogram structure 100 to deform towards the spring 300, and because the double-parallelogram structure 100 is connected with the cabinet door 1, the spring 300 always pulls the cabinet door 1 to move towards the spring 300 through the double-parallelogram structure 100, so that the cabinet door 1 always keeps a state of being tightly attached to the cabinet body 2, and the cabinet door 1 is closed more tightly.
Further scheme is provided with buffer (not shown in the figure) on cabinet door 1, and when closing cabinet door 1, buffer supported and leans on at the cabinet body 2, avoids cabinet door 1 to touch cabinet door 1 fast under spring 300's pulling force effect, prevents the tong, improves the security.
Claims (10)
1. The utility model provides a link mechanism, includes the first body of rod, the second body of rod, the third body of rod, the fourth body of rod, the fifth body of rod and elastic component, its characterized in that: the first rod body, the second rod body and the third rod body are arranged in parallel from top to bottom, the fourth rod body is movably connected with the first rod body, the second rod body and the third rod body respectively, the fifth rod body is movably connected with the first rod body, the second rod body and the third rod body respectively to form a double-parallelogram structure, one end of the elastic piece is connected with the double-parallelogram structure, the other end of the elastic piece is connected with the third rod body, and the elastic piece forms a reset mechanism of the double-parallelogram structure.
2. The linkage mechanism according to claim 1, wherein: the front side of the double-parallelogram structure extends outwards to form a front connecting part, and the rear side of the double-parallelogram structure extends outwards to form a rear connecting part.
3. The linkage mechanism according to claim 2, wherein: the connecting plate is further included, and the front connecting part is movably connected with the connecting plate.
4. The linkage mechanism according to claim 3, wherein: the front end part of the first rod body is bent downwards to form the front connecting part.
5. The linkage mechanism according to claim 3, wherein: the front end part of the second rod body is bent downwards to form the front connecting part, and the rear end part of the second rod body is bent upwards to form the rear connecting part.
6. The linkage mechanism according to claim 2, wherein: the third body of rod is spaced apart to be opened there is the bolt hole, and the back tip of the third body of rod is crooked formation elastic component connecting portion up, the elastic component is the spring, and spring one end is connected back even portion, and the elastic component connecting portion are connected to the spring other end.
7. The linkage mechanism according to claim 3, wherein: the junction of the fourth rod body and the first rod body, the junction of the second rod body and the third rod body adopt rivet connection, the junction of the fifth rod body and the first rod body, the junction of the second rod body and the third rod body adopt rivet connection, and the junction of the front connecting part and the connecting plate adopts rivet connection.
8. The linkage mechanism according to claim 7, wherein: and the second rod body and the third rod body are both provided with positioning clamping grooves for limiting the deformation state of the double-parallelogram structure.
9. A cabinet adopting the linkage mechanism as claimed in any one of claims 1 to 8, comprising a cabinet door and a cabinet body, wherein the lower end of the cabinet door is connected to the cabinet body, the cabinet door rotates around the joint as a rotation center, the linkage mechanism is fixed on the side wall of the inner cavity of the cabinet body, the double-parallelogram structure is connected with the cabinet door, when the cabinet door is opened, the cabinet door drives the double-parallelogram structure to deform so as to generate thrust, the cabinet door is pushed, and when the cabinet door is closed, the cabinet door drives the double-parallelogram structure to deform so as to generate tension, and the cabinet door is pulled.
10. The cabinet of claim 9, wherein: still include buffer, buffer sets up on the cabinet door, and when closing the cabinet door, buffer supports and leans on at the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221497019.8U CN217461801U (en) | 2022-06-15 | 2022-06-15 | Link mechanism and cabinet adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221497019.8U CN217461801U (en) | 2022-06-15 | 2022-06-15 | Link mechanism and cabinet adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217461801U true CN217461801U (en) | 2022-09-20 |
Family
ID=83238560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221497019.8U Active CN217461801U (en) | 2022-06-15 | 2022-06-15 | Link mechanism and cabinet adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217461801U (en) |
-
2022
- 2022-06-15 CN CN202221497019.8U patent/CN217461801U/en active Active
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