CN211812847U - Retraction device - Google Patents
Retraction device Download PDFInfo
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- CN211812847U CN211812847U CN202020373794.7U CN202020373794U CN211812847U CN 211812847 U CN211812847 U CN 211812847U CN 202020373794 U CN202020373794 U CN 202020373794U CN 211812847 U CN211812847 U CN 211812847U
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- telescopic rod
- box body
- chain
- telescopic
- side wall
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Abstract
The utility model discloses a winding and unwinding devices. The chain-driven chain transmission device comprises a box body and a chain arranged in the box body, wherein a through hole is formed in the bottom of the box body; the upper end of the chain is fixedly connected with the center of the top of the box body, and the lower end of the chain penetrates through the through hole and extends downwards; a plurality of first telescopic rods and a plurality of second telescopic rods are arranged in the box body, and the first telescopic rods and the second telescopic rods are arranged in parallel and are positioned on the same plane; one end of the first telescopic rod is fixedly connected with the left side wall of the box body, and the other end of the first telescopic rod is a free end and extends towards the right side wall; one end of the second telescopic rod is fixedly connected with the right side wall of the box body, and the other end of the second telescopic rod is a free end and extends towards the left side wall; the first telescopic rod and the second telescopic rod are arranged at intervals; the free ends of the first telescopic rod and the second telescopic rod are provided with pulleys, the pulleys are rotatably connected with the first telescopic rod and the second telescopic rod through wheel shafts, and the pulleys are located on the same plane. The technical scheme can retract and release the chain along with the change of the water level, and has a simple and convenient structure.
Description
Technical Field
The utility model belongs to the supporting facility field of cursory chain, particularly, be a winding and unwinding devices.
Background
The facility that the cursory is used for instructing the depth of water in the waters usually, it through cursory chain with the anchor set fixed with submarine, but, the depth of water of the same position in different seasons in the river also will change, how receive and release the cursory chain voluntarily, the problem that adapts to different depths of water is urgent to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a overcome not enough winding and unwinding devices among the prior art. In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
a winding and unwinding device comprises a box body and a chain arranged in the box body, wherein the bottom of the box body is provided with a through hole; the upper end of the chain is fixedly connected with the center of the top of the box body, and the lower end of the chain penetrates through the through hole and extends downwards; a plurality of first telescopic rods and a plurality of second telescopic rods are arranged in the box body, and the first telescopic rods and the second telescopic rods are arranged in parallel and are positioned on the same plane; one end of the first telescopic rod is fixedly connected with the left side wall of the box body, and the other end of the first telescopic rod is a free end and extends towards the right side wall; one end of the second telescopic rod is fixedly connected with the right side wall of the box body, and the other end of the second telescopic rod is a free end and extends towards the left side wall; the first telescopic rod and the second telescopic rod are arranged at intervals; pulleys are arranged at the free ends of the first telescopic rod and the second telescopic rod, the pulleys are rotatably connected with the first telescopic rod and the second telescopic rod through wheel shafts, and the pulleys are all positioned on the same plane; the chain is wound around the pulleys from top to bottom.
Further inject, first telescopic link and second telescopic link all include outer body and interior body, interior body inserts outer body one end, the outer body other end is provided with the end cover, be provided with reset spring in the outer body, reset spring both ends are supported and are leaned on end cover and interior body tip respectively.
Further limited, the port of the matching end of the outer tube body and the inner tube body is provided with a limiting ring protruding inwards, and the outer wall of the matching end of the inner tube body and the outer tube body is provided with a limiting lug protruding outwards.
Further limit, the inner pipe body is fixedly provided with a wheel carrier at one end far away from the outer pipe body, and the pulley is rotationally connected with the wheel carrier through a wheel shaft.
Further limiting, the width of the box body is not less than the sum of the length of the telescopic rod and the diameter of the pulley;
the thickness of the inner space of the box body is equal to that of the wheel carrier.
The utility model discloses compare prior art, the chain passes through the first telescopic link and the cooperation extrusion of second telescopic link and cooperation pulley of both sides, be the form of buckling in the box, in the use, box fixed mounting is on the cursory, when the water level risees, the box will rise together along with the cursory, will pull the chain under the effect of buoyancy this moment, will exert pressure to first telescopic link and second telescopic link after the chain atress, it contracts to extrude first telescopic link and second telescopic link, then the length of buckling of chain will reduce, can extend out a certain distance to the box outside, when the water level risees, the box descends along with the cursory, the chain will reduce the pressure to first telescopic link and second telescopic link, first telescopic link and second telescopic link will extend, take in the chain in the box, can receive and release the chain along with the change of water level, and is simple in structure convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a in fig. 1.
The main element symbols are as follows:
the device comprises a box body 1, a chain 2, a through hole 3, a first telescopic rod 4, a second telescopic rod 5, a pulley 6, an outer pipe body 7, an inner pipe body 8, an end cover 9, a wheel carrier 10, a limiting ring 11, a limiting lug 12 and a return spring 13.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1 and 2, the retraction device comprises a box body 1 and a chain 2 arranged in the box body 1, wherein the bottom of the box body 1 is provided with a through hole 3; the upper end of the chain 2 is fixedly connected with the center of the top of the box body 1, and the lower end of the chain 2 penetrates through the through hole 3 and extends downwards; a plurality of first telescopic rods 4 and a plurality of second telescopic rods 5 are arranged in the box body 1, and the first telescopic rods 4 and the second telescopic rods 5 are arranged in parallel and are positioned on the same plane; one end of the first telescopic rod 4 is fixedly connected with the left side wall of the box body 1, and the other end of the first telescopic rod is a free end and extends towards the right side wall; one end of the second telescopic rod 5 is fixedly connected with the right side wall of the box body 1, and the other end of the second telescopic rod is a free end and extends towards the left side wall; the first telescopic rod 4 and the second telescopic rod 5 are arranged at intervals; the free ends of the first telescopic rod 4 and the second telescopic rod 5 are respectively provided with a pulley 6, the pulleys 6 are rotatably connected with the first telescopic rod 4 and the second telescopic rod 5 through wheel shafts, and the pulleys 6 are all positioned on the same plane; the chain 2 bypasses the pulleys 6 from top to bottom. The first telescopic rod 4 and the second telescopic rod 5 both comprise an outer tube body 7 and an inner tube body 8, the inner tube body 8 is inserted into one end of the outer tube body 7, an end cover 9 is arranged at the other end of the outer tube body 7, a return spring 13 is arranged in the outer tube body 7, and two ends of the return spring 13 are respectively abutted against the end cover 9 and the end part of the inner tube body 8. The port of the matching end of the outer tube body 7 and the inner tube body 8 is provided with a limiting ring 11 protruding inwards, and the outer wall of the matching end of the inner tube body 8 and the outer tube body 7 is provided with a limiting lug 12 protruding outwards. And one end of the inner pipe 8, which is far away from the outer pipe 7, is fixedly provided with a wheel carrier 10, and the pulley 6 is rotationally connected with the wheel carrier 10 through a wheel shaft. The width of the box body 1 is not less than the sum of the length of the telescopic rod and the diameter of the pulley 6; the thickness of the inner cavity of the box body 1 is equal to that of the wheel carrier 10.
In the embodiment, the chain 2 is bent in the box body 1 through the matched extrusion of the first telescopic rod 4 and the second telescopic rod 5 at two sides and the matched pulley 6, when in use, the box body 1 is fixedly arranged on a buoy, when the water level rises, the box body 1 rises along with the buoy, at the moment, the chain 2 is pulled under the action of the buoy, after the chain 2 is stressed, the first telescopic rod 4 and the second telescopic rod 5 are pressed, the first telescopic rod 4 and the second telescopic rod 5 are extruded to be contracted, the bending length of the chain 2 is reduced, the chain 2 can extend out of the box body 1 for a certain distance, when the water level rises, the box body 1 descends along with the buoy, the chain 2 reduces the pressure on the first telescopic rod 4 and the second telescopic rod 5, the first telescopic rod 4 and the second telescopic rod 5 are extended, the chain 2 is collected into the box body 1, and the chain 2 can be collected and collected along with the change of the water level, the structure is simple and convenient.
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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (5)
1. A kind of retraction device, characterized by: the chain type chain conveyor comprises a box body and a chain arranged in the box body, wherein a through hole is formed in the bottom of the box body;
the upper end of the chain is fixedly connected with the center of the top of the box body, and the lower end of the chain penetrates through the through hole and extends downwards;
a plurality of first telescopic rods and a plurality of second telescopic rods are arranged in the box body, and the first telescopic rods and the second telescopic rods are arranged in parallel and are positioned on the same plane;
one end of the first telescopic rod is fixedly connected with the left side wall of the box body, and the other end of the first telescopic rod is a free end and extends towards the right side wall;
one end of the second telescopic rod is fixedly connected with the right side wall of the box body, and the other end of the second telescopic rod is a free end and extends towards the left side wall;
the first telescopic rod and the second telescopic rod are arranged at intervals;
pulleys are arranged at the free ends of the first telescopic rod and the second telescopic rod, the pulleys are rotatably connected with the first telescopic rod and the second telescopic rod through wheel shafts, and the pulleys are all positioned on the same plane;
the chain is wound around the pulleys from top to bottom.
2. The retraction device according to claim 1, characterized in that: the first telescopic rod and the second telescopic rod respectively comprise an outer pipe body and an inner pipe body, the inner pipe body is inserted into one end of the outer pipe body, the other end of the outer pipe body is provided with an end cover, a reset spring is arranged in the outer pipe body, and two ends of the reset spring are respectively abutted against the end cover and the end part of the inner pipe body.
3. The retraction device according to claim 2, characterized in that: the port of the matching end of the outer tube body and the inner tube body is provided with a limiting ring protruding inwards, and the outer wall of the matching end of the inner tube body and the outer tube body is provided with a limiting lug protruding outwards.
4. The retraction device according to claim 3, characterized in that: the inner pipe body is fixedly provided with a wheel carrier at one end far away from the outer pipe body, and the pulley is rotatably connected with the wheel carrier through a wheel shaft.
5. The retraction device according to claim 4, characterized in that: the width of the box body is not less than the sum of the length of the telescopic rod and the diameter of the pulley;
the thickness of the inner space of the box body is equal to that of the wheel carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020373794.7U CN211812847U (en) | 2020-03-23 | 2020-03-23 | Retraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020373794.7U CN211812847U (en) | 2020-03-23 | 2020-03-23 | Retraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211812847U true CN211812847U (en) | 2020-10-30 |
Family
ID=73010458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020373794.7U Active CN211812847U (en) | 2020-03-23 | 2020-03-23 | Retraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211812847U (en) |
-
2020
- 2020-03-23 CN CN202020373794.7U patent/CN211812847U/en active Active
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