CN213537108U - Pulley seat with self-locking function - Google Patents
Pulley seat with self-locking function Download PDFInfo
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- CN213537108U CN213537108U CN202022506284.5U CN202022506284U CN213537108U CN 213537108 U CN213537108 U CN 213537108U CN 202022506284 U CN202022506284 U CN 202022506284U CN 213537108 U CN213537108 U CN 213537108U
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- end plate
- wedge
- clamping block
- shaped clamping
- rear end
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- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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Abstract
The utility model provides a pulley seat with self-locking function, which comprises a base, a front end plate, a rear end plate, an oblique slide rail, a clamping mechanism, an elastic pressing mechanism and a locking mechanism, wherein the base is provided with the front end plate and the rear end plate, a pulley is arranged between the front end plate and the rear end plate, the inner side surfaces of the front end plate and the rear end plate are provided with the oblique slide rail, the oblique slide rail is positioned on the left side of the pulley, the clamping mechanism is arranged in the oblique slide rail in a sliding way, the top of the clamping mechanism is provided with the elastic pressing mechanism, the clamping mechanism consists of a wedge-shaped clamping block, an oblique guide slider, a guide wheel and a friction convex edge, the front end and the rear end of the left side surface of the wedge-shaped clamping block are provided with the oblique guide slider, the right side surface of the wedge-shaped clamping block is provided with the guide wheel, the right side surface of the wedge-shaped clamping block is, thereby improving the safety of construction.
Description
Technical Field
The utility model relates to a pulley block field especially relates to a pulley block with self-locking function.
Background
The pulley is a simple machine for lifting heavy objects, is fixed on a pulley seat, and can be used for lifting operation in the fields needing lifting operation in the industries such as building, petroleum, chemical engineering and the like, and workers are easy to fall off from the air to harm personal and property safety if no anti-loosening measures are taken during construction operation.
The pulley is in the use, generally promotes the heavy object of pulley another side through the rope that stimulates pulley one side, promotes to be tied rope on fixed position after the appointed height, but the condition that the rope takes off in the lifting process probably appears at some times, will cause the heavy object to fall downwards along the opposite direction of lifting direction like this to cause the damage of goods and even personnel's injury.
Disclosure of Invention
According to the technical problem, the utility model provides a pulley holder with self-locking function, its characterized in that includes base, front end plate, rear end plate, slant slide rail, clamping mechanism, elastic hold-down mechanism and locking mechanical system, front end plate and rear end plate are installed respectively to the front and back both ends of bottom surface on the base, the mounting hole has been seted up to front end plate and rear end plate central authorities, be provided with the pulley between front end plate and the rear end plate, the pulley is installed in the mounting hole of front end plate and rear end plate through the connecting axle, the medial surface of front end plate and rear end plate is provided with the slant slide rail respectively, the slant slide rail is located the left side of pulley, sliding fit has clamping mechanism in the slant slide rail, the clamping mechanism top is provided with elastic hold-down mechanism, the clamping mechanism left side is provided;
the clamping mechanism consists of a wedge-shaped clamping block, an inclined guide sliding block, a guide wheel and a friction convex edge, the right side surface of the wedge-shaped clamping block is a vertical surface, the left side surface of the wedge-shaped clamping block is an inclined surface which is gradually inclined inwards from top to bottom, the front end and the rear end of the left side surface of the wedge-shaped clamping block are respectively provided with an inclined guide sliding block, the right side surface of the wedge-shaped clamping block is provided with a groove, a guide wheel is arranged in the groove, sharp teeth are uniformly arranged on the guide wheel along the periphery of the outer side, a friction convex edge is arranged on the right side surface of the wedge-shaped clamping block, the friction convex ridges are respectively positioned at the upper side and the lower side of the guide wheel, the number of the friction convex ridges is N, N is more than or equal to 2, the clamping mechanism is respectively arranged in the oblique slide rails on the inner side surfaces of the front end plate and the rear end plate through oblique guide slide blocks at the front end and the rear end, and balls are arranged between the oblique guide slide blocks and the oblique slide rails;
the elastic pressing mechanism comprises a sleeve, a spring and a pressing rod, the front end and the rear end of the sleeve are mounted on the inner side surfaces of the front end plate and the rear end plate through supports, the sleeve is arranged in an inclined mode, the inclination of the sleeve is consistent with that of an inclined sliding rail, the pressing rod is sleeved in the sleeve in a sliding mode, the spring is mounted in the sleeve, one end of the spring abuts against the inner wall of the sleeve, the other end of the spring abuts against one end of the pressing rod, and the other end of the pressing rod extends out of the sleeve and is fixedly connected with the top of the wedge-;
the locking mechanism is composed of a locking plate and locking bolts, the locking plate is fixed between the front end plate and the rear end plate, and the locking bolts are installed on the locking plate.
The utility model has the advantages that:
the utility model is provided with the clamping mechanism and the elastic pressing mechanism, when in use, the rope is wound on the pulley, then the rope at the right end is pulled to pull the heavy object at the left end, the rope drives the wedge-shaped clamping block to move upwards along the oblique slide rail, simultaneously, the spring of the elastic pressing mechanism is compressed, the rope slides and is pulled to the right side under the action of the pulley and the guide wheel, when the rope loosens the heavy object to drive the rope to slide to the left side, the rope drives the guide wheel to rotate reversely, simultaneously, the wedge-shaped clamping block moves downwards along the oblique slide rail under the action of the elastic pressing mechanism, simultaneously, the wedge-shaped clamping block moves to one side of the pulley until the friction convex edge contacts with the rope, at the moment, the rope continues to drive the wedge-shaped block to move downwards along the oblique slide rail through the friction force of the friction convex edge, simultaneously, the wedge-shaped clamping block continues to move to one side of the pulley, when the rope is loosened during the ascending process, the structure can effectively clamp the rope through the elastic pressing mechanism and the wedge-shaped clamping block to prevent heavy objects from falling, so that the construction safety is improved, and the normal use of the pulley seat can not be influenced during normal lifting.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a right side view of the present invention;
FIG. 3 is a cross-sectional view of the front view of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a perspective view of the wedge-shaped clamping block of the present invention.
As shown in the figure: 1-base, 2-front end plate, 3-rear end plate, 4-oblique sliding rail, 5-mounting hole, 6-pulley, 7-connecting shaft, 8-rope, 9-wedge-shaped clamping block, 10-oblique guide sliding block, 11-guide wheel, 12-friction convex edge, 13-groove, 14-sleeve, 15-spring, 16-pressure bar, 17-locking plate and 18-locking bolt.
Detailed Description
Example 1
The utility model provides a 6 seats of pulley with self-locking function, its characterized in that includes base 1, front end plate 2, back end plate 3, slant slide rail 4, clamping mechanism, elasticity hold-down mechanism and locking mechanical system, front end plate 2 and back end plate 3 are installed respectively to the front and back both ends of base 1 upper bottom surface, front end plate 2 and back end plate 3 central authorities have seted up mounting hole 5, be provided with pulley 6 between front end plate 2 and the back end plate 3, pulley 6 is installed in mounting hole 5 of front end plate 2 and back end plate 3 through connecting axle 7, the medial surface of front end plate 2 and back end plate 3 is provided with slant slide rail 4 respectively, slant slide rail 4 is located the left side of pulley 6, slidable mounting has clamping mechanism in slant slide rail 4, the clamping mechanism top is provided with elasticity hold-down mechanism, the clamping mechanism left side is provided with locking;
the clamping mechanism consists of a wedge-shaped clamping block 9, an inclined guide sliding block 10, the wedge-shaped clamping block comprises a guide wheel 11 and friction convex ridges 12, the right side surface of a wedge-shaped clamping block 9 is a vertical surface, the left side surface of the wedge-shaped clamping block 9 is an inclined surface which gradually inclines inwards from top to bottom, inclined guide sliding blocks 10 are respectively arranged at the front end and the rear end of the left side surface of the wedge-shaped clamping block 9, a groove 13 is formed in the right side surface of the wedge-shaped clamping block 9, the guide wheel 11 is installed in the groove 13, sharp teeth are uniformly arranged on the periphery of the outer side of the guide wheel 11, the friction convex ridges 12 are arranged on the right side surface of the wedge-shaped clamping block 9 and are respectively positioned on the upper side and the lower side of the guide wheel 11, the number of the friction convex ridges 12 is N, N is more than or equal to 2, a clamping mechanism is respectively installed in the inclined sliding rails 4 on the inner side surfaces of a front end plate 2 and;
the elastic pressing mechanism consists of a sleeve 14, a spring 15 and a pressing rod 16, the front end and the rear end of the sleeve 14 are installed on the inner side surfaces of the front end plate 2 and the rear end plate 3 through supports, the sleeve 14 is obliquely arranged, the inclination of the sleeve 14 is consistent with that of the oblique sliding rail 4, the pressing rod 16 is sleeved in the sleeve 14 in a sliding mode, the spring 15 is installed in the sleeve 14, one end of the spring 15 abuts against the inner wall of the sleeve 14, the other end of the spring 15 abuts against one end of the pressing rod 16, and the other end of the pressing rod 16 extends out of the sleeve 14 and is fixedly connected with;
the locking mechanism is composed of a locking plate 17 and a locking bolt 18, the locking plate 17 is fixed between the front end plate 2 and the rear end plate 3, and the locking bolt 18 is installed on the locking plate 17.
Example 2
When the utility model is used, the rope 8 is wound on the pulley 6, under the normal condition, under the action of the spring 15 and the pressure lever 16 of the elastic pressing mechanism, the guide wheel 11 of the wedge-shaped clamping block 9 is abutted against the left side of the rope 8, when the heavy object is lifted, the right end of the rope 8 is pulled downwards, the rope 8 moves rightwards around the pulley 6, and because the guide wheel 11 is abutted against the rope 8, the guide wheel 11 also rotates anticlockwise along with the movement of the rope 8, because the rope 8 moves rightwards all the time, under the driving of the rope 8, the upward friction force generated by the rope 8 on the wedge-shaped clamping block 9 through the guide wheel 11 is equal to the downward pressure generated by the spring 15 and the pressure lever 16 on the wedge-shaped clamping block 9, the wedge-shaped clamping block 9 is accepted to be in a balanced state and always kept on the upper part of the oblique slide rail 4, when the right side rope 8 is loosened, the left side drives the, at this time, the rope 8 drives the guide wheel 11 to rotate clockwise, the upward friction force acting on the wedge-shaped clamping block 9 disappears as the rope 8 moves leftwards, at this time, the downward pressure generated by the spring 15 and the pressure lever 16 presses the wedge-shaped clamping block 9 downwards to enable the wedge-shaped clamping block 9 to slide downwards along the inclined slide rail 4 and move inwards until the friction convex edge 12 is contacted with the rope 8, the rope 8 generates a downward friction force on the wedge-shaped clamping block 9 through the friction convex edge 12, the friction force continuously drives the wedge-shaped clamping block 9 to move downwards along the inclined slide rail 4, meanwhile, the wedge-shaped clamping block 9 moves inwards to clamp the rope 8 through the combined action of the friction convex edge 12 and the pulley 6, the heavy object is prevented from falling reversely, when the heavy object needs to fall, the rope 8 is pulled downwards, at this time, the rope 8 slides rightwards around the pulley 6 and the wedge-shaped clamping block 9 moves upwards along the inclined guide rail without, the spring 15 is compressed and the locking bolt 18 is then screwed with one end against the wedge-shaped clamping block 9, so that the wedge-shaped clamping block 9 cannot move on the inclined slide rail 4, and no matter which side the rope 8 moves, the weight can no longer be clamped, and then the weight can be lowered in the opposite direction.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The utility model discloses each part that mentions is the common technique in prior art, and the technical personnel of this trade should understand, the utility model discloses do not receive the restriction of above-mentioned embodiment, the description only is the explanation in above-mentioned embodiment and the description the principle of the utility model, under the prerequisite that does not deviate from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of claim the utility model is within the scope. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A pulley seat with a self-locking function is characterized by comprising a base, a front end plate, a rear end plate, an oblique sliding rail, a clamping mechanism, an elastic pressing mechanism and a locking mechanism, wherein the front end plate and the rear end plate are respectively installed at the front end and the rear end of the upper bottom surface of the base;
the clamping mechanism is composed of a wedge-shaped clamping block, inclined guide sliding blocks, guide wheels and friction convex ribs, the right side face of the wedge-shaped clamping block is a vertical face, the left side face of the wedge-shaped clamping block is an inclined face which gradually inclines inwards from top to bottom, the inclined guide sliding blocks are arranged at the front end and the rear end of the left side face of the wedge-shaped clamping block respectively, a groove is formed in the right side face of the wedge-shaped clamping block, the guide wheels are installed in the groove, the friction convex ribs are arranged on the right side face of the wedge-shaped clamping block and are located at the upper side and the lower side of the guide wheels respectively, and the clamping mechanism is installed in inclined sliding rails on the inner side faces of the front end plate and the rear end plate respectively through the inclined guide sliding;
elasticity hold-down mechanism comprises sleeve, spring and depression bar, around the sleeve on the medial surface of both ends through support mounting front end plate and rear end plate, the sleeve sets up for the slope, telescopic gradient is unanimous with the slant slide rail, sliding sleeve is equipped with the depression bar in the sleeve, install the spring in the sleeve, spring one end supports on the sleeve inner wall, the spring other end supports one of depression bar and serves, the other end of depression bar stretches out the sleeve outside and presss from both sides tight piece top fixed connection with the wedge.
2. The pulley seat with the self-locking function according to claim 1, wherein sharp teeth are uniformly arranged on the guide wheel around the outer side.
3. The pulley seat with the self-locking function according to claim 1, wherein the number of the friction convex ridges is N, wherein N is greater than or equal to 2.
4. The pulley seat with the self-locking function according to claim 1, wherein a ball is disposed between the inclined guiding sliding block and the inclined sliding rail.
5. The pulley seat with the self-locking function according to claim 1, wherein the locking mechanism is composed of a locking plate and a locking bolt, the locking plate is fixed between the front end plate and the rear end plate, and the locking bolt is installed on the locking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022506284.5U CN213537108U (en) | 2020-11-03 | 2020-11-03 | Pulley seat with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022506284.5U CN213537108U (en) | 2020-11-03 | 2020-11-03 | Pulley seat with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213537108U true CN213537108U (en) | 2021-06-25 |
Family
ID=76479203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022506284.5U Expired - Fee Related CN213537108U (en) | 2020-11-03 | 2020-11-03 | Pulley seat with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213537108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115123953A (en) * | 2022-09-01 | 2022-09-30 | 江苏海强电缆有限公司 | Cable pulley |
-
2020
- 2020-11-03 CN CN202022506284.5U patent/CN213537108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115123953A (en) * | 2022-09-01 | 2022-09-30 | 江苏海强电缆有限公司 | Cable pulley |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210625 |