CN117657991B - Stage equipment hoisting device capable of safely braking - Google Patents
Stage equipment hoisting device capable of safely braking Download PDFInfo
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- CN117657991B CN117657991B CN202410142413.7A CN202410142413A CN117657991B CN 117657991 B CN117657991 B CN 117657991B CN 202410142413 A CN202410142413 A CN 202410142413A CN 117657991 B CN117657991 B CN 117657991B
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- 229910052742 iron Inorganic materials 0.000 claims description 16
- 244000309464 bull Species 0.000 abstract description 2
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- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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Abstract
The invention relates to the technical field of lifting devices, and discloses a stage equipment lifting device capable of safely braking, which comprises: the support frame is arranged at the bottom end of the moving assembly; the top end of the lifting frame is slidably matched and inserted into the inner cavity of the supporting frame; the left and right sides of the top end of the winding drum are respectively arranged at the left and right sides of the bottom end of the lifting frame, and the upper and lower sides of the front and rear ends of the left side of the winding drum are respectively provided with a chute along the front and rear direction; the left and right ends of the first guide rod are respectively arranged at the left and right sides of the inner cavity of the chute. When stage equipment is pulled to this device, if the weight of equipment exceeds the counter weight restriction of this device, can brake the rotatory bull stick voluntarily to avoid appearing that the electric hoist is overloaded and the condition such as slippage appear, avoid the occurence of failure, when the condition such as overload, power failure lead to the stopper inefficacy appear simultaneously, can prevent that equipment from falling, eliminate the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of lifting devices, in particular to a stage equipment lifting device capable of safely braking.
Background
The stage equipment lifting device is a tool for lifting, lowering and suspending heavy equipment in the processes of stage construction, setting, prop installation and the like, and the traditional stage equipment lifting device is operated by adopting an electric hoist; but traditional safety braking's stage equipment hoisting device can't carry out accurate measurement to the weight of hoisting equipment, and because electric hoist has certain counter weight restriction, when the weight of equipment exceeds the counter weight restriction of electric hoist, and still use electric hoist to jack up equipment, can exist and cause electric hoist overload, can make electric hoist receive the damage, even initiate the accident, the condition of slippage appears, increase the emergence risk of accident, very easily cause personal injury or material damage, simultaneously, traditional electric hoist is when using, need use the stopper to brake, and when the condition such as overload, power failure appear, can lead to the stopper to become invalid, and then cause equipment to fall, there is the potential safety hazard.
Disclosure of Invention
The invention aims to solve the defect of certain potential safety hazard in the prior art, and provides a stage equipment lifting device capable of safely braking.
In order to achieve the above purpose, the present invention provides the following technical solutions: stage equipment crane device capable of safety braking, comprising: the support frame is arranged at the bottom end of the moving assembly; the top end of the lifting frame is slidably matched and inserted into the inner cavity of the supporting frame; the left and right sides of the top end of the winding drum are respectively arranged at the left and right sides of the bottom end of the lifting frame, and the upper and lower sides of the front and rear ends of the left side of the winding drum are respectively provided with a chute along the front and rear direction; the left end and the right end of the first guide rod are respectively arranged at the left side and the right side of the inner cavity of the chute; the second spring is sleeved on the outer side of the outer wall of the first guide rod, and the outer end of the second spring is clamped on the outer side of the inner cavity of the chute; the casing is arranged at the left side of the winding drum; the motor screw is connected to the right side of the winding drum; the right end of the rotating rod is locked at the output end of the motor through a hydraulic coupler, and the left end of the rotating rod can extend out of the left side of the winding drum in a rotating way; the number of the second calipers is two, and the two second calipers are respectively arranged at the left side and the right side of the outer wall of the rotating rod; the pull rope is wound on the middle part of the outer wall of the rotary rod, and the bottom end of the pull rope extends out of the bottom end of the winding drum; the braking mechanism is arranged in the inner cavity of the casing.
Further, after the weight of equipment exceeds the weight limit of the device, the inner cavity of the supporting frame capable of automatically braking is also provided with: the upper ends and the lower ends of the three limiting rods are respectively arranged at the upper side and the lower side of the inner cavity of the supporting frame at equal intervals along the left-right direction, and the lifting frame is sleeved on the outer wall of the limiting rods in a sliding manner; the first spring is sleeved at the bottom end of the outer wall of the limiting rod, the bottom end of the first spring is clamped at the bottom end of the inner cavity of the supporting frame, and the top end of the first spring is clamped at the top end of the lifting frame; the number of the telescopic rods is two, the top ends of the two telescopic rods are respectively arranged at the left side and the right side of the bottom end of the supporting frame, and the bottom ends of the telescopic rods slidably penetrate through the top ends of the lifting frame and the top ends of the winding drum and extend into the left side and the right side of the inner cavity of the winding drum; the lantern ring is arranged at the bottom end of the telescopic rod, the lantern ring can be sleeved on the outer wall of the rotary rod in a vertically sliding mode, and the position of the lantern ring corresponds to the position of the second caliper; the first caliper is arranged at the bottom end of the inner cavity of the lantern ring, and the first caliper is matched with the second caliper.
Further, in order to enhance the braking effect of the present device, the braking mechanism includes: the caliper disc is sleeved on the left side of the outer wall of the rotary rod and locked; the sliding block is slidably matched and inserted into the inner side of the inner cavity of the sliding groove, the sliding block is slidably sleeved on the outer wall of the first guide rod, and the inner end of the second spring is clamped on the outer side of the sliding block; the number of the brake blocks is two, the upper end and the lower end of the right side of the two brake blocks are respectively arranged on the left sides of the four sliding blocks, and the brake blocks are matched with the caliper disc.
Further, in order to prevent the falling of the article when the brake fails, the brake mechanism further comprises: the upper end and the lower end of the second guide rod are respectively arranged at the left ends of the upper side and the lower side of the inner cavity of the casing; the electromagnet is arranged on the right side of the top end of the inner cavity of the shell; the sliding plate is sleeved on the outer wall of the second guide rod in a sliding way; the counterweight iron block is arranged on the right side of the top end of the sliding plate, and the position of the counterweight iron block corresponds to the position of the electromagnet; the number of the connecting rods is four, the inner ends of the four connecting rods are respectively rotatably arranged at the upper side and the lower side of the front end and the rear end of the right side of the sliding plate through pin shafts, and the outer ends of the four connecting rods are respectively rotatably arranged at the upper end and the lower end of the left side of the two brake blocks through pin shafts.
Further, the electromagnet is attracted with the counterweight iron block, so that the sliding plate can be driven to move, and the counterweight iron block is caused to be contacted with the electromagnet.
Further, a gap exists between the outer wall of the rotating rod and the inner wall of the collar.
Further, the distance between the outer side of the sliding block and the outer side of the inner cavity of the sliding groove is larger than the front-back width of the brake block.
Further, the distance between the bottom end of the inner wall of the lantern ring and the outer wall of the rotating rod is smaller than the distance between the top end of the inner cavity of the lifting frame and the bottom end of the inner cavity of the supporting frame.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the motor drives the rotary rod to rotate, so that the stage equipment can be lifted by using the pull rope.
(2) According to the invention, the device is driven to move through the moving assembly, the first spring and the supporting frame are utilized to support the winding drum, when the weight of the pull rope pulling equipment exceeds the weight limit of the device, the lifting frame is pulled to move downwards along the inner cavity of the supporting frame, meanwhile, the winding drum and the rotating rod are driven to move downwards, the first spring is extruded to elastically deform until the first caliper is contacted with the second caliper, and the rotating rod can be braked by utilizing the cooperation between the first caliper and the second caliper, so that the continuous pulling equipment can be prevented.
(3) The invention can strengthen the braking effect of the rotating rod through the cooperation between the braking block and the caliper disc.
(4) When stage equipment is pulled to this device, if the weight of equipment exceeds the counter weight restriction of this device, can brake the rotatory bull stick voluntarily to avoid appearing that the electric hoist is overloaded and the condition such as slippage appear, avoid the occurence of failure, when the condition such as overload, power failure lead to the stopper inefficacy appear simultaneously, can prevent that equipment from falling, eliminate the potential safety hazard.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a front cross-sectional view of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a schematic structural view of the brake mechanism.
Fig. 5 is an enlarged view at a of fig. 3.
Fig. 6 is an enlarged view at B of fig. 3.
Fig. 7 is an enlarged view at C of fig. 3.
Fig. 8 is an enlarged view of D of fig. 4.
The list of components represented by the reference numerals in the figures is as follows: 1. a moving assembly; 2. a support frame; 3. a limit rod; 4. a first spring; 5. a telescopic rod; 6. a collar; 7. a first caliper; 8. a braking mechanism; 81. a caliper disc; 82. a slide block; 83. a brake block; 84. a connecting rod; 85. a second guide bar; 86. an electromagnet; 87. a slide plate; 88. a counterweight iron block; 9. a lifting frame; 10. a reel; 11. a chute; 12. a first guide bar; 13. a second spring; 14. a casing; 15. a motor; 16. a rotating rod; 17. a second caliper; 18. and (5) pulling the rope.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-8, a stage equipment lifting device capable of safety braking, comprising: the movable assembly 1, the supporting frame 2, the limiting rod 3, the first spring 4, the telescopic rod 5, the lantern ring 6, the first caliper 7, the braking mechanism 8, the lifting frame 9, the winding drum 10, the chute 11, the first guide rod 12, the second spring 13, the casing 14, the motor 15, the rotating rod 16, the second caliper 17 and the pull rope 18, the supporting frame 2 is arranged at the bottom end of the movable assembly 1, the top end of the lifting frame 9 is slidably matched and inserted into the inner cavity of the supporting frame 2, the left and right sides of the top end of the winding drum 10 are respectively arranged at the left and right sides of the bottom end of the lifting frame 9, the upper and lower sides of the front and rear ends of the left side of the winding drum 10 are respectively provided with the chute 11 along the front and rear direction, the left and right ends of the first guide rod 12 are respectively arranged at the left and right sides of the inner cavity of the chute 11, the second spring 13 is sleeved outside the outer wall of the first guide rod 12, the outer end of the second spring 13 is clamped outside the chute 11, the second spring 13 is a rotary spring, after being extruded or stretched by external force, the elastic deformation is generated, the external force is removed and returns to an initial state, the second spring 13 is used for pushing the brake block 83 inwards, the sleeve shell 14 is arranged at the left side of the winding drum 10, the motor 15 is connected to the right side of the winding drum 10 by a screw, the motor 15 is in the prior art, the motor 15 is an electromagnetic brake motor, the motor 15 is not repeated here, the motor 15 is used for driving the rotating rod 16 to rotate, the right end of the rotating rod 16 is locked at the output end of the motor 15 by a hydraulic coupler, the left end of the rotating rod 16 is rotatably extended out of the left side of the winding drum 10, the number of the second calipers 17 is two, the two second calipers 17 are respectively arranged at the left side and the right side of the outer wall of the rotating rod 16, the pull rope 18 is wound at the middle part of the outer wall of the rotating rod 16, the bottom end of the pull rope 18 is extended out of the winding drum 10, the pull rope 18 is used for lifting a weight, the brake mechanism 8 is arranged in the inner cavity of the winding drum 14, the braking mechanism 8 is used for enhancing the braking effect of the device, the number of the limit rods 3 is three, the upper and lower ends of the three limit rods 3 are respectively arranged at the upper and lower sides of the inner cavity of the supporting frame 2 along the left and right directions at equal intervals, the lifting frame 9 is slidably sleeved on the outer wall of the limit rods 3, the first springs 4 are sleeved on the bottom end of the outer wall of the limit rods 3, the bottom ends of the first springs 4 are clamped on the bottom end of the inner cavity of the supporting frame 2, the top ends of the first springs 4 are clamped on the top ends of the lifting frame 9, the first springs 4 are rotary springs and are elastically deformed after being extruded or stretched by external force, the first springs 4 are used for supporting the lifting frame 9 after the external force is removed, the maximum elastic force of the three first springs 4 is the same as the weight limit of the device, the number of the telescopic rods 5 is two, the top ends of the two telescopic rods 5 are respectively arranged at the left side and the right side of the bottom end of the supporting frame 2, the bottom ends of the telescopic rods 5 slidably penetrate through the top ends of the lifting frames 9 and the top ends of the winding drums 10 and extend into the left side and the right side of the inner cavity of the winding drums 10, the lantern ring 6 is arranged at the bottom ends of the telescopic rods 5, the lantern ring 6 can be sleeved on the outer wall of the rotating rod 16 in a vertically sliding mode, the position of the lantern ring 6 corresponds to the position of the second caliper 17, a gap exists between the outer wall of the rotating rod 16 and the inner wall of the lantern ring 6, the rotating rod 16 can rotate in a normal state, the distance from the bottom end of the inner wall of the lantern ring 6 to the outer wall of the rotating rod 16 is smaller than the distance from the top end of the inner cavity of the lifting frames 9 to the bottom end of the inner cavity of the supporting frame 2, the outer wall of the rotating rod 16 can be contacted with the inner wall of the lantern ring 6, the first caliper 7 is arranged at the bottom end of the inner cavity of the lantern ring 6, the first caliper 7 is matched with the second caliper 17, the cooperation between the first caliper 7 and the second caliper 17 prevents the rotation lever 16 from rotating.
Specifically, the brake mechanism 8 includes: the caliper disc 81, the sliding block 82, the brake block 83, the connecting rod 84, the second guide rod 85, the electromagnet 86, the sliding plate 87 and the counterweight iron block 88, the caliper disc 81 is sleeved on the left side of the outer wall of the rotary rod 16 and locked, the sliding block 82 is slidably matched with and inserted into the inner cavity inner side of the sliding groove 11, the sliding block 82 is slidably sleeved on the outer wall of the first guide rod 12, the inner end of the second spring 13 is clamped on the outer side of the sliding block 82, the distance between the outer side of the sliding block 82 and the outer side of the inner cavity of the sliding groove 11 is larger than the front-back width of the brake block 83, the rotary rod 16 can be guaranteed to drive the caliper disc 81 to rotate, the number of the brake blocks 83 is two, the upper and lower ends of the two brake blocks 83 are respectively arranged on the left side of the four sliding blocks 82, the brake blocks 83 are matched with the caliper disc 81, the brake blocks 83 are matched with the sliding plate 81 to prevent the rotary rod 16 from rotating, the upper and lower ends of the second guide rod 85 are respectively arranged on the left end and the right end of the inner cavity of the inner side of the sliding groove 14, the electromagnet 86 is arranged on the right side of the inner cavity top of the sliding rod 14, the electromagnet 86 is the counterweight iron block 86 is a counterweight iron block 86 in the prior art, the number of the two brake blocks 86 is not excessively, the number of the brake blocks are used for driving the electromagnet 86, the upper and the two brake blocks 87 are used for driving the upper and the upper ends and lower ends of the two sliding blocks are respectively arranged on the right sides of the upper ends of the two ends of the sliding blocks 84, and the upper ends of the two corresponding to the upper ends of the two ends of the sliding blocks 84 are respectively arranged on the upper ends of the two ends of the sliding rods 84 and 84, and the upper ends and lower ends of the upper ends and 84 are respectively and lower ends of the right opposite respectively, and 84.
During operation, the moving assembly 1 is fixed on the guide rail, stage equipment is fixed at the bottom end of the pull rope 18, the electromagnet 86 is started, the electromagnet 86 is utilized to attract the counterweight iron block 88 to drive the sliding plate 87 to move upwards until the counterweight iron block 88 is contacted with the electromagnet 86, the sliding plate 87 moves upwards, the connecting rod 84 is further caused to push the sliding block 82 to drive the braking block 83 to move outwards until the braking block 83 is separated from the caliper disc 81, the motor 15 is started, the output end of the motor 15 is utilized to rotate to drive the rotary rod 16 to rotate, the pull rope 18 is further caused to drive the stage equipment to ascend, when the pull rope 18 drives the stage equipment to ascend, the counterweight of the lifting frame 9 is caused to increase, the lifting frame 9 can slide downwards in the inner cavity of the supporting frame 2 and extrude the first springs 4 to elastically deform, the lifting frame 9 moves downwards, the winding drum 10 and the rotary rod 16 are further driven to move downwards until the sliding plate moves to a proper position, the maximum elastic force of the three first springs 4 is the same as the counterweight limit of the device, when the counterweight of the stage equipment is not exceeded, the outer wall of the rotary rod 16 is not contacted with the inner wall of the lantern ring 6, the rotary rod 16 can not rotate, the rotary rod can further drive the rotary rod 16 to rotate through the rotary rod 16, the rotary rod 16 is further driven by the rotary rod 16 to rotate through the rotary rod 16 when the rotary rod is further connected with the rotary rod 16, the rotary rod 16 is further normally connected with the rotary rod 16, the rotary rod 16 is further prevented from being in a normal connection between the rotary rod 16 and the rotary device, and the rotary rod 16 can be further prevented from being further damaged by the rotary rod 16, and further connected with the rotary rod 16 through the rotary rod 16 when the rotary rod is further connected through the rotary rod 16 and the rotary rod is further connected through the rotary rod and the rotary rod 16 and further has normal device and the rotary rod and further has good function, because braking is carried out to the rotary rod 16, and then when the weight of stage equipment exceeds the counter weight limit of this device, can't jack-up to stage equipment, and then the security of this device has been increased, if the weight of stage equipment does not exceed the counter weight limit of this device, after utilizing stay cord 18 to drive stage equipment and remove to suitable height, switch off electromagnet 86, can impel slide 87 downwardly moving under the effect between counter weight iron block 88 and second spring 13, and impel connecting rod 84 to pull slider 82 to drive the brake block 83 and inwards remove, until brake block 83 meshes with caliper disc 81, can brake to the rotary rod 16, thereby fix the height of stage equipment, switch off motor 15, utilize moving assembly 1 to drive this device and remove suitable position later do with above-mentioned opposite direction motion can, this device is when lifting stage equipment, if the weight of equipment exceeds the counter weight limit of this device, can brake to the rotary rod 16 voluntarily, thereby avoid the condition such as electric hoist overload and slippage appear, avoid the emergence, simultaneously when circumstances such as overload, power failure causes the stopper to fall off the equipment, the potential safety hazard can be prevented.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (5)
1. Stage equipment hoisting device that can safety brake, characterized in that includes:
A moving assembly (1);
The support frame (2) is arranged at the bottom end of the moving assembly (1);
The top end of the lifting frame (9) is slidably matched and inserted into the inner cavity of the supporting frame (2);
The left and right sides of the top end of the winding drum (10) are respectively arranged at the left and right sides of the bottom end of the lifting frame (9), and sliding grooves (11) are formed in the upper and lower sides of the front and rear ends of the left side of the winding drum (10) along the front and rear directions;
The left end and the right end of the first guide rod (12) are respectively arranged at the left side and the right side of the inner cavity of the chute (11);
The second spring (13) is sleeved outside the outer wall of the first guide rod (12), and the outer end of the second spring (13) is clamped outside the inner cavity of the chute (11);
A casing (14), the casing (14) being arranged on the left side of the reel (10);
A motor (15), wherein the motor (15) is connected to the right side of the winding drum (10) through screws;
the right end of the rotating rod (16) is locked at the output end of the motor (15) through a hydraulic coupler, and the left end of the rotating rod (16) can be rotated to extend out of the left side of the winding drum (10);
the number of the second calipers (17) is two, and the two second calipers (17) are respectively arranged at the left side and the right side of the outer wall of the rotating rod (16);
The pull rope (18) is wound on the middle part of the outer wall of the rotary rod (16), and the bottom end of the pull rope (18) extends out of the bottom end of the winding drum (10);
the braking mechanism (8) is arranged in the inner cavity of the casing (14);
The inner cavity of the supporting frame (2) is also provided with:
The three limiting rods (3) are arranged at the upper end and the lower end of the three limiting rods (3) at equal intervals along the left-right direction respectively and are arranged at the upper side and the lower side of the inner cavity of the supporting frame (2), and the lifting frame (9) is sleeved on the outer wall of the limiting rods (3) in a sliding manner;
The first spring (4) is sleeved at the bottom end of the outer wall of the limiting rod (3), the bottom end of the first spring (4) is clamped at the bottom end of the inner cavity of the supporting frame (2), and the top end of the first spring (4) is clamped at the top end of the lifting frame (9);
The telescopic rods (5) are arranged in number, the top ends of the two telescopic rods (5) are respectively arranged at the left side and the right side of the bottom end of the supporting frame (2), and the bottom end of the telescopic rod (5) slidably penetrates through the top end of the lifting frame (9) and the top end of the winding drum (10) and extends into the left side and the right side of the inner cavity of the winding drum (10);
the lantern ring (6), the lantern ring (6) is arranged at the bottom end of the telescopic rod (5), the lantern ring (6) can be sleeved on the outer wall of the rotary rod (16) in a vertical sliding mode, and the position of the lantern ring (6) corresponds to the position of the second caliper (17);
The first caliper (7) is arranged at the bottom end of the inner cavity of the lantern ring (6), and the first caliper (7) is matched with the second caliper (17);
the braking mechanism (8) comprises:
the caliper disc (81) is sleeved on the left side of the outer wall of the rotary rod (16) and locked;
The sliding block (82) is in sliding fit connection with the inner side of the inner cavity of the sliding groove (11), the sliding block (82) is in sliding connection with the outer wall of the first guide rod (12), and the inner end of the second spring (13) is clamped on the outer side of the sliding block (82);
The number of the brake blocks (83) is two, the upper ends and the lower ends of the right sides of the two brake blocks (83) are respectively arranged on the left sides of the four sliding blocks (82), and the brake blocks (83) are matched with the caliper disc (81);
The upper end and the lower end of the second guide rod (85) are respectively arranged at the left ends of the upper side and the lower side of the inner cavity of the casing (14);
The electromagnet (86) is arranged on the right side of the top end of the inner cavity of the casing (14);
The sliding plate (87) is slidably sleeved on the outer wall of the second guide rod (85);
The counterweight iron block (88), the counterweight iron block (88) is arranged on the right side of the top end of the sliding plate (87), and the position of the counterweight iron block (88) corresponds to the position of the electromagnet (86);
the number of the connecting rods (84) is four, the inner ends of the four connecting rods (84) are respectively rotatably arranged on the upper side and the lower side of the front end and the rear end of the right side of the sliding plate (87) through pin shafts, and the outer ends of the four connecting rods (84) are respectively rotatably arranged on the upper side and the lower side of the left side of the two brake blocks (83) through pin shafts.
2. Stage equipment lifting device capable of safety braking according to claim 1, characterized in that: the electromagnet (86) is attracted with the counterweight iron block (88) to drive the sliding plate (87) to move, so that the counterweight iron block (88) is contacted with the electromagnet (86).
3. Stage equipment lifting device capable of safety braking according to claim 2, characterized in that: a gap exists between the outer wall of the rotating rod (16) and the inner wall of the lantern ring (6).
4. A stage equipment lifting device capable of safety braking according to claim 3, characterized in that: the distance between the outer side of the sliding block (82) and the outer side of the inner cavity of the sliding groove (11) is larger than the front-back width of the brake block (83).
5. A stage equipment lifting device capable of safety braking according to claim 4, characterized in that: the distance between the bottom end of the inner wall of the lantern ring (6) and the outer wall of the rotating rod (16) is smaller than the distance between the top end of the inner cavity of the lifting frame (9) and the bottom end of the inner cavity of the supporting frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142413.7A CN117657991B (en) | 2024-02-01 | 2024-02-01 | Stage equipment hoisting device capable of safely braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142413.7A CN117657991B (en) | 2024-02-01 | 2024-02-01 | Stage equipment hoisting device capable of safely braking |
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| Publication Number | Publication Date |
|---|---|
| CN117657991A CN117657991A (en) | 2024-03-08 |
| CN117657991B true CN117657991B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410142413.7A Active CN117657991B (en) | 2024-02-01 | 2024-02-01 | Stage equipment hoisting device capable of safely braking |
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