CN215326697U - Safety lock for lifter - Google Patents
Safety lock for lifter Download PDFInfo
- Publication number
- CN215326697U CN215326697U CN202121054753.2U CN202121054753U CN215326697U CN 215326697 U CN215326697 U CN 215326697U CN 202121054753 U CN202121054753 U CN 202121054753U CN 215326697 U CN215326697 U CN 215326697U
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- China
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- flexible connecting
- connecting piece
- locking
- safety lock
- pulley
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Abstract
The utility model provides a safety lock for a lifter, comprising: the pulley, the flexible connecting piece, the elastic piece, the locking plate and the locking block; the flexible connecting piece is used for drawing the tackle, the tackle is provided with a rotating shaft, the locking block comprises a body, a clamping portion and an abutting portion, the body can rotate around the rotating shaft, the clamping portion and the abutting portion are respectively arranged at two ends of the body, the elastic piece enables the abutting portion to abut against the flexible connecting piece, and the locking plate is provided with a locking hole. According to the safety lock for the lifting machine, the abutting part abuts against the flexible connecting piece, when the flexible connecting piece is in a complete state, the abutting part is blocked by the flexible connecting piece, and the lock block cannot rotate; when the flexible connecting piece breaks, the abutting part is not blocked, the locking block rotates under the driving of the elastic piece, the clamping part extends into the locking hole, the pulley cannot fall down, and the safety of the flexible connecting piece when the flexible connecting piece breaks is guaranteed.
Description
Technical Field
The utility model relates to the field of lifting machines, in particular to a safety lock for a lifting machine.
Background
The lifting machine needs to lift the automobile to a higher position in a work project so as to facilitate the maintenance of the automobile chassis. The coaster of machine of lifting is generally equipped with flexible connectors, like wire rope etc. connects the pulling to the coaster, in case flexible connectors breaks, the coaster drops, will cause very big incident.
SUMMERY OF THE UTILITY MODEL
The present invention provides a safety lock for a lift to overcome the above problems.
A safety lock for a lift comprising: the pulley, the flexible connecting piece, the elastic piece, the locking plate and the locking block;
the flexible connecting piece is used for drawing the pulley, the pulley is provided with a rotating shaft, the locking block comprises a body, a clamping part and an abutting part, the body can rotate around the rotating shaft, the clamping part and the abutting part are respectively arranged at two ends of the body, the elastic piece enables the abutting part to abut against the flexible connecting piece, and the locking plate is provided with a locking hole;
when the flexible connecting piece is disconnected, the elastic piece drives the locking block to rotate around the rotating shaft, and the clamping part extends into the locking hole.
Furthermore, the elastic part is a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the locking block, and the other end of the torsion spring is connected with the pulley.
Further, the abutting part is perpendicular to the body, and a gasket is arranged on one side, facing the flexible connecting piece, of the abutting part.
Further, the flexible connecting piece is a chain.
Furthermore, the flexible connecting piece is fixedly connected with the pulley, the pulley moves up and down along the upright post, and the locking plate is fixed on the upright post.
According to the safety lock for the lifting machine, the abutting part abuts against the flexible connecting piece, when the flexible connecting piece is in a complete state, the abutting part is blocked by the flexible connecting piece, and the lock block cannot rotate; when the flexible connecting piece breaks, the abutting part is not blocked, the locking block rotates under the driving of the elastic piece, the clamping part extends into the locking hole, the pulley cannot fall down, and the safety of the flexible connecting piece when the flexible connecting piece breaks is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a safety lock for a lifting machine according to an embodiment of the present invention, illustrating the safety lock in an unlocked state when the flexible connector is intact;
FIG. 2 is a schematic structural diagram of a lock block disclosed in the embodiments of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic diagram of a safety lock for a lift according to an embodiment of the present invention, wherein the safety lock is in a locked state when the flexible connector is disconnected;
FIG. 5 is an enlarged view of portion B of FIG. 4;
FIG. 6 is an enlarged perspective view of a safety lock for a lift disclosed in an embodiment of the present invention in an unlocked state;
fig. 7 is an enlarged perspective view of a safety lock for a lifter according to an embodiment of the present invention in a locked state.
In the figure:
1. a pulley; 11. a rotating shaft; 2. a flexible connector; 3. an elastic member; 4. a lock plate; 41. a locking hole; 5. a locking block; 51. a body; 52. a fastening part; 53. an abutment portion.
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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
As shown in fig. 1, a safety lock for a lifting machine, comprising: the pulley 1, the flexible connecting piece 2, the elastic piece 3, the locking plate 4 and the locking block 5;
the flexible connecting piece 2 is used for towing the tackle 1, the tackle 1 is provided with a rotating shaft 11, as shown in fig. 2, the locking block 5 includes a body 51, a clamping portion 52 and an abutting portion 53, the body 51 can rotate around the rotating shaft 11, the clamping portion 52 and the abutting portion 53 are respectively arranged at two ends of the body 51, the elastic piece 3 enables the abutting portion 53 to abut against the flexible connecting piece 2, and the locking plate 4 is provided with a locking hole 41;
when the flexible connecting element 2 is disconnected, the elastic element 3 drives the locking block 5 to rotate around the rotating shaft 11, and the clamping part 52 extends into the locking hole 41.
According to the safety lock for the lifting machine, the abutting part 53 abuts against the flexible connecting piece 2, as shown in fig. 3 and 6, when the flexible connecting piece 2 is in a complete state, the abutting part 53 is blocked by the flexible connecting piece 2, and the lock block 5 cannot rotate; as shown in fig. 4, 5 and 7, when the flexible connector 2 is broken, the abutting part 53 is not blocked, the locking block 5 is driven by the elastic piece 3 to rotate, so that the engaging part 52 extends into the locking hole 41, the tackle 1 cannot fall down, and the safety of the flexible connector when broken is ensured.
The elastic member 3 may be a common spring, one end of which is connected to the locking block and the other end of which is connected to the pulley, so that the locking block tends to rotate counterclockwise as shown in fig. 3, and the engaging portion tends to extend into the locking hole.
In this embodiment, the elastic member 3 is a torsion spring, the torsion spring is sleeved on the rotating shaft 11, one end of the torsion spring is connected to the locking block 5, and the other end of the torsion spring is connected to the pulley 1, so that the abutting portion 53 abuts against the flexible connecting member 2, and the engaging portion has a movement tendency of extending into the locking hole.
In this embodiment, flexible connection spare 2 is the chain, and the chain is equipped with two altogether, and the coaster is equipped with the support, is equipped with pivot 11 on the support, and a locking piece 5 is installed respectively at the both ends of pivot 11, and the body 51 of two locking pieces 5 is in between two chains, butt portion 53 with body 51 is perpendicular, stretches out to the chain direction, butt portion 53 orientation one side of flexible connection spare 2 is equipped with the gasket, and the gasket adopts self-lubricating material, like polytetrafluoroethylene, reduces the frictional force between locking piece 5 and the chain.
The lifting machine in this embodiment adopts a single-side driving mode. Particularly, the machine of lifting has two stands, is equipped with the coaster respectively, and two coasters pass through the chain and connect, and the coaster of one side passes through hydraulic cylinder drive, and the connection of chain is by hydraulic cylinder drive's coaster, and other end downwardly extending walks around the pulley of two stands below in proper order, then winds to the opposite side stand, walks around behind the pulley at opposite side stand top, downwardly extending, with another coaster fixed connection, makes two coasters synchronous motion through the chain.
The safety lock in this embodiment is installed on the upright post on the other side of the chain, the chain abutted by the abutting part 53 is the chain extending to the top of the upright post on the other side, the locking plate 4 is fixed on the upright post, and the locking plate is provided with a plurality of locking holes 41.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A safety lock for a lifting machine, comprising: the pulley (1), the flexible connecting piece (2), the elastic piece (3), the locking plate (4) and the locking block (5);
the flexible connecting piece (2) is used for drawing the pulley (1), the pulley (1) is provided with a rotating shaft (11), the locking block (5) comprises a body (51), a clamping part (52) and an abutting part (53), the body (51) can rotate around the rotating shaft (11), the clamping part (52) and the abutting part (53) are respectively arranged at two ends of the body (51), the elastic piece (3) enables the abutting part (53) to abut against the flexible connecting piece (2), and the locking plate (4) is provided with a locking hole (41);
when the flexible connecting piece (2) is disconnected, the elastic piece (3) drives the locking block (5) to rotate around the rotating shaft (11), and the clamping part (52) extends into the locking hole (41).
2. A safety lock for lifts according to claim 1, characterized in that the elastic element (3) is a torsion spring, which is fitted on the shaft (11) and has one end connected to the block (5) and the other end connected to the trolley (1).
3. Safety lock for lifts according to claim 1, characterised in that said abutment (53) is perpendicular to said body (51), the side of said abutment (53) facing said flexible connecting element (2) being provided with a gasket.
4. Safety lock for lifts according to claim 1, characterised in that said flexible connecting element (2) is a chain.
5. Safety lock for lifts according to claim 1, characterised in that said flexible connecting element (2) is fixedly connected to said trolley (1), said trolley (1) moving up and down along a vertical column on which said blocking plate (4) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054753.2U CN215326697U (en) | 2021-05-17 | 2021-05-17 | Safety lock for lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054753.2U CN215326697U (en) | 2021-05-17 | 2021-05-17 | Safety lock for lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215326697U true CN215326697U (en) | 2021-12-28 |
Family
ID=79546790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121054753.2U Active CN215326697U (en) | 2021-05-17 | 2021-05-17 | Safety lock for lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215326697U (en) |
-
2021
- 2021-05-17 CN CN202121054753.2U patent/CN215326697U/en active Active
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