CN212400797U - Anti-skid chain tightening device - Google Patents
Anti-skid chain tightening device Download PDFInfo
- Publication number
- CN212400797U CN212400797U CN202021584215.XU CN202021584215U CN212400797U CN 212400797 U CN212400797 U CN 212400797U CN 202021584215 U CN202021584215 U CN 202021584215U CN 212400797 U CN212400797 U CN 212400797U
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- China
- Prior art keywords
- shell
- telescopic rod
- steel wire
- pawl
- wire
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Abstract
The utility model provides a antiskid chain tightening device, belonging to the technical field of automobile antiskid chains and aiming at solving the problem that the existing automobile antiskid chain is comparatively troublesome to tighten during installation; the device comprises a shell, and a power assembly, a tightening assembly and a locking assembly which are arranged in the shell; the power assembly includes: a power shaft, a ratchet wheel and a driving gear; the tightening assembly includes: the driven shaft, the driven gear, the take-up reel and the steel wire; the locking assembly includes: adjusting screw, telescopic rod and pawl; the utility model provides a design can realize tightening up and relaxing the synchronization of automobile tire tyre chain, easy operation, and convenient to use can save the physical demands of installing the automobile tyre chain.
Description
Technical Field
The utility model relates to a car tyre chain technical field specifically is a tyre chain tightening means.
Background
At present, automobile anti-skid chains are widely used as common snow anti-skid equipment; after the existing automobile anti-skid chain is arranged on a tire, a tightening ring is needed to fix the outer part of the anti-skid chain; when the ring is tightened in the installation, need the user to use instruments such as sleeve, will tighten up the ring cover and overlap on the couple of tyre chain, have a plurality of couples on a tyre chain usually, when overlapping in turn, several last couples can additionally be difficult to overlap, and is great to user's physical demands, and very difficult when dismantling, and this problem is waited for to solve urgently.
SUMMERY OF THE UTILITY MODEL
The technique that exists is not enough to the aforesaid, the utility model aims at providing a tyre chain tightening means can realize tightening up and relaxing the synchronization of automobile tire tyre chain, easy operation, and convenient to use can sparingly install the physical demands of automobile tyre chain.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a snow chain tightener, characterized by, including the outer cover and power pack, tightening assembly and locking assembly that locate in said outer cover;
the power assembly includes: a power shaft, a ratchet wheel and a driving gear; the power shaft is rotatably arranged on the shell; the ratchet wheel and the driving gear are fixedly arranged on the power shaft;
the tightening assembly includes: the driven shaft, the driven gear, the take-up reel and the steel wire; the driven shaft is rotatably arranged on the shell; the driven gear and the take-up reel are fixedly arranged on the driven shaft; the driven gear is in rotating engagement with the driving gear; the rear end of the steel wire is fixedly arranged on the take-up reel and is wound on the take-up reel; the front end of the steel wire penetrates through the shell and extends to the outside of the shell;
the locking assembly includes: adjusting screw, telescopic rod and pawl; the adjusting screw rod is rotatably arranged on the shell; the telescopic rod is arranged on the shell in a sliding mode, and the front end of the telescopic rod is rotatably arranged in the adjusting screw rod; the pawl is hinged to the rear end of the telescopic rod and is in clamping fit with the ratchet wheel.
Preferably, one end of the power shaft passes through the housing and extends to the outside of the housing; and an octagonal connecting rod is integrally arranged on the external power shaft.
Preferably, a wire hole for accommodating the steel wire is arranged on the circumferential wall of the shell; the rollers are rotationally arranged in the wire holes; a hairbrush is fixedly arranged on the shell on one side of the wire hole; the steel wire is arranged between the roller and the hairbrush.
Preferably, the front end of the steel wire is integrally provided with a steel wire pull ring.
Preferably, a guide cylinder is integrally arranged on the shell; the inner side wall of the guide cylinder is provided with threads matched with the adjusting screw; the bottom of the guide cylinder is fixedly provided with a guide sleeve, and the inner side wall of the guide sleeve is fixedly provided with a guide block; the telescopic rod is arranged in the guide sleeve in a sliding mode, and a guide groove matched with the guide block is formed in the telescopic rod.
Preferably, a pin is fixedly arranged at the rear end of the telescopic rod, and the pawl is rotatably arranged on the pin; the pin is sleeved with a torsion spring, and two ends of the torsion spring are respectively fixedly connected with the telescopic rod and the pawl.
The beneficial effects of the utility model reside in that: the utility model provides a design can realize tightening up and relaxing the synchronization of automobile tire tyre chain, easy operation, and convenient to use can save the physical demands of installing the automobile tyre chain.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 structural view of a snow chain tightening device according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Description of reference numerals:
the device comprises an expansion link 1, a pawl 2, a shell 3, a ratchet 4, a driving gear 5, a driven shaft 6, a roller 7, a steel wire 8, a steel wire pull ring 9, a hairbrush 10, a take-up reel 11, a driven gear 12, a power shaft 13, an expansion link 14, an adjusting screw 15, a guide sleeve 16, a guide groove 17, a guide block 18 and a guide cylinder 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "in", "up", "down", "horizontal", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection; 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 invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-2, a snow chain tightener includes a housing 3, and a power assembly, a tightening assembly, and a locking assembly disposed within the housing 3;
the power assembly includes: a power shaft 13, a ratchet 4 and a driving gear 5; two bearings matched with the power shaft 13 are fixedly arranged on two side walls of the shell 3, and the power shaft 13 is rotatably arranged on the shell 3 through the bearings; the ratchet 4 and the driving gear 5 are fixedly arranged on the power shaft 13; one end of the power shaft 13 penetrates the housing 3 and extends to the outside of the housing 3; an octagonal connecting rod is integrally arranged on the external power shaft 13; the octagonal connecting rod is sleeved with the octagonal wrench, and is rotated to drive the ratchet wheel 4 and the driving gear 5 to rotate;
the tightening assembly includes: the driven shaft 6, the driven gear 12, the take-up reel 11 and the steel wire 8; bearings matched with the driven shaft 6 are fixedly arranged on two side walls of the shell 3, and the driven shaft 6 is rotatably arranged on the shell 3 through the bearings; the driven gear 12 and the take-up reel 11 are fixedly arranged on the driven shaft 6; the driven gear 12 is rotationally meshed with the driving gear 5; the rear end of the steel wire 8 is fixedly arranged on the take-up reel 11 and is wound on the take-up reel 11; the front end of the steel wire 8 penetrates through the shell 3 and extends out of the shell 3, and the front end of the steel wire 8 is integrally provided with a steel wire pull ring 9 for sheathing a hook on the anti-skid chain; a wire hole for accommodating the steel wire 8 is arranged on the circumferential wall of the shell 3; a roller 7 is rotationally arranged in the wire hole; a hairbrush 10 is fixedly arranged on the shell 3 at one side of the wire hole; the steel wire 8 is arranged between the roller 7 and the hairbrush 10, when the steel wire 8 is wound up and unwound, a reverse extension line of the steel wire 8 outside the shell 3 passes through the central axis of the driven shaft 6, when the steel wire 8 is wound on the winding disc 11, the friction force between the steel wire 8 and the shell 3 is exerted on the roller 7, the friction force when the steel wire 8 is wound and unwound is reduced through the roller 7, the steel wire 8 is cleaned through the hairbrush 10, and impurities such as snow, water and the like on the steel wire 8 are prevented from entering the interior of the winding device;
the locking assembly includes: the adjusting screw rod 15, the telescopic rod 141 and the pawl 2; the adjusting screw rod 15 is rotatably arranged on the shell 3; the telescopic rod 141 is arranged on the shell 3 in a sliding manner, and the front end of the telescopic rod 141 is arranged in the adjusting screw rod 15 in a rotating manner; the pawl 2 is hinged to the rear end of the telescopic rod 141, and the pawl 2 is in clamping fit with the ratchet wheel 4; a guide cylinder 19 is integrally arranged on the shell 3; the inner side wall of the guide cylinder 19 is provided with a thread matched with the adjusting screw 15; the bottom of the guide cylinder 19 is fixedly provided with a guide sleeve 16, and the inner side wall of the guide sleeve 16 is fixedly provided with a guide block 18; the telescopic rod 141 is slidably arranged in the guide sleeve 16, and the telescopic rod 141 is provided with a guide groove 17 matched with the guide block 18, so that the telescopic rod 141 can only move up and down; a pin is fixedly arranged at the rear end of the telescopic rod 141, and the pawl 2 is rotatably arranged on the pin; a torsion spring is sleeved on the pin, and two ends of the torsion spring are respectively fixedly connected with the telescopic rod 141 and the pawl 2; the adjusting screw rod 15 is rotated to drive the telescopic rod 141 to move up and down in the guide cylinder 19 together, so that the ratchet 4 and the pawl 2 realize the state change of clamping and separation; the torsion spring can ensure that the pawl 2 is in a state of being matched with the ratchet wheel 4 under a natural state.
When the ratchet locking device is used, the adjusting screw rod 15 is rotated to drive the telescopic rod 141 and the pawl 2 to move towards the inside of the locking device, so that the pawl 2 is matched with the ratchet 4, as shown in the state in fig. 1, at the moment, the ratchet 4 can only rotate clockwise; sleeving a steel wire pull ring 9 on a steel wire 8 on a hook on an anti-skid chain, driving a power shaft 13, a ratchet wheel 4 and a driving gear 5 to rotate by using an octagonal wrench, wherein a pawl 2 can ensure that the driving gear 5, a driven gear 12 and a take-up reel 11 can only rotate in a single direction, so that the steel wire 8 can only be wound, and the anti-skid chain can be synchronously tightened; when the tightening device needs to be detached, the adjusting screw rod 15 only needs to be rotated reversely, the telescopic rod 141 and the pawl 2 are driven to move upwards, the ratchet wheel 4 and the pawl 2 are disengaged, the ratchet wheel 4 and the take-up reel 11 can both rotate freely, and the steel wire pull ring 9 is taken down.
The utility model provides a design can realize tightening up and relaxing the synchronization of automobile tire tyre chain, easy operation, and convenient to use can save the physical demands of installing the automobile tyre chain.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A snow chain tightener, characterized by, including the outer cover and power pack, tightening assembly and locking assembly that locate in said outer cover;
the power assembly includes: a power shaft, a ratchet wheel and a driving gear; the power shaft is rotatably arranged on the shell; the ratchet wheel and the driving gear are fixedly arranged on the power shaft;
the tightening assembly includes: the driven shaft, the driven gear, the take-up reel and the steel wire; the driven shaft is rotatably arranged on the shell; the driven gear and the take-up reel are fixedly arranged on the driven shaft; the driven gear is in rotating engagement with the driving gear; the rear end of the steel wire is fixedly arranged on the take-up reel and is wound on the take-up reel; the front end of the steel wire penetrates through the shell and extends to the outside of the shell;
the locking assembly includes: adjusting screw, telescopic rod and pawl; the adjusting screw rod is rotatably arranged on the shell; the telescopic rod is arranged on the shell in a sliding mode, and the front end of the telescopic rod is rotatably arranged in the adjusting screw rod; the pawl is hinged to the rear end of the telescopic rod and is in clamping fit with the ratchet wheel.
2. The snow chain tightening apparatus of claim 1, wherein one end of the power shaft extends through the housing and to an exterior of the housing; and an octagonal connecting rod is integrally arranged on the external power shaft.
3. The snow chain tightener of claim 1, wherein the housing has a wire hole in a circumferential wall for receiving the wire; the rollers are rotationally arranged in the wire holes; a hairbrush is fixedly arranged on the shell on one side of the wire hole; the steel wire is arranged between the roller and the hairbrush.
4. The snow chain tightening apparatus of claim 1, wherein the wire is integrally provided with a wire pull ring at a front end thereof.
5. The snow chain tightening apparatus of claim 1, wherein the housing is integrally formed with a guide tube; the inner side wall of the guide cylinder is provided with threads matched with the adjusting screw; the bottom of the guide cylinder is fixedly provided with a guide sleeve, and the inner side wall of the guide sleeve is fixedly provided with a guide block; the telescopic rod is arranged in the guide sleeve in a sliding mode, and a guide groove matched with the guide block is formed in the telescopic rod.
6. The snow chain tightening apparatus according to claim 5, wherein a pin is fixedly provided at a rear end of the extendable rod, and the pawl is rotatably disposed on the pin; the pin is sleeved with a torsion spring, and two ends of the torsion spring are respectively fixedly connected with the telescopic rod and the pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021584215.XU CN212400797U (en) | 2020-08-03 | 2020-08-03 | Anti-skid chain tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021584215.XU CN212400797U (en) | 2020-08-03 | 2020-08-03 | Anti-skid chain tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212400797U true CN212400797U (en) | 2021-01-26 |
Family
ID=74371398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021584215.XU Expired - Fee Related CN212400797U (en) | 2020-08-03 | 2020-08-03 | Anti-skid chain tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212400797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111806171A (en) * | 2020-08-03 | 2020-10-23 | 苏州马上坡科技有限公司 | Anti-skid chain tightening device |
-
2020
- 2020-08-03 CN CN202021584215.XU patent/CN212400797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111806171A (en) * | 2020-08-03 | 2020-10-23 | 苏州马上坡科技有限公司 | Anti-skid chain tightening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 Termination date: 20210803 |