CN214696794U - Safety protection device for falling prevention of lifting scaffold - Google Patents
Safety protection device for falling prevention of lifting scaffold Download PDFInfo
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- CN214696794U CN214696794U CN202022951102.5U CN202022951102U CN214696794U CN 214696794 U CN214696794 U CN 214696794U CN 202022951102 U CN202022951102 U CN 202022951102U CN 214696794 U CN214696794 U CN 214696794U
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- guide rail
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Abstract
The utility model provides a safety protection device for preventing falling of a lifting scaffold, which comprises a mounting seat, a guide rail and an anti-falling device; the mounting seat comprises a base plate, mounting plates arranged on two sides of the base plate and a bottom plate arranged at the lower end of the mounting plates, and the mounting plates are connected with the guide rails in a vertical sliding manner; the anti-falling device comprises a main gear and an auxiliary gear, a trigger baffle arm is arranged on the main gear, an anti-falling baffle arm and a limiting baffle arm are arranged on the auxiliary gear, the limiting baffle arm is arranged on the left side of the anti-falling baffle arm, a certain included angle is formed between the limiting baffle arm and the anti-falling baffle arm, and an elastic limiting block matched with the limiting baffle arm is arranged at the lower end of the bottom plate; the main gear and the pinion are arranged up and down and are meshed and connected with each other, a return spring is sleeved on the first rotating shaft, one end of the return spring is fixedly connected with the mounting plate through a connecting rod, and the other end of the return spring is fixedly connected with the trigger stop arm; a plurality of anti-falling cross rods are uniformly arranged in the guide rail. The utility model discloses simple structure, low in production cost, safe and reliable can effectively guarantee constructor's life safety.
Description
Technical Field
The utility model relates to a construction equipment technical field, concretely relates to lifting foot hand rack prevents weighing down and uses safety device.
Background
The attached lifting scaffold is an external protection scaffold which is developed for nearly more than ten years and is applied to high-rise and super high-rise buildings, has the advantages of saving a large amount of labor and materials, being simple and convenient to operate, easy to manage, protecting the environment and the like, and is greatly popularized and applied in the construction process of the high-rise and super high-rise buildings.
At present, in the lifting process of the lifting scaffold, once the lifting scaffold falls accidentally, a great amount of casualties and property loss are inevitably caused, so that the anti-falling device plays an important role as the last safety protection barrier in the accidental situation. The existing anti-falling device is fine in manufacture and high in production cost; some of the devices need to be maintained manually frequently, and the use cost is high; some brakes are insensitive and have potential safety hazards. The anti-falling device is used as the last safety line of the attached lifting scaffold, so that the popularization and the application of the attached lifting scaffold are influenced, and the life safety of operators is concerned.
In view of the above, there is a need to design a safety protection device for preventing falling of a lifting scaffold, which overcomes the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an overcome the lift scaffold of above-mentioned problem and prevent weighing down and use safety device.
In order to realize the purpose, the utility model discloses a technical scheme is: a safety protection device for preventing falling of a lifting scaffold comprises a mounting seat, a guide rail and a falling prevention device arranged in the mounting seat;
the mounting seat comprises a base plate fixedly connected with the outer wall of the building, mounting plates arranged on two sides of one surface of the base plate, which is far away from the outer wall of the building, and a bottom plate arranged at the lower ends of the mounting plates, and the mounting plates are connected with the guide rails in a vertically sliding manner;
the anti-falling device comprises a main gear which is rotatably connected between the mounting plates through a first rotating shaft and a pinion which is rotatably connected between the mounting plates through a second rotating shaft, a trigger baffle arm is fixedly arranged on the main gear, an anti-falling baffle arm and a limiting baffle arm are fixedly arranged on the pinion, the limiting baffle arm is arranged on the left side of the anti-falling baffle arm, a certain included angle is formed between the anti-falling baffle arm and the limiting baffle arm, and an elastic limiting block matched with the limiting baffle arm is arranged at the lower end of the bottom plate;
the main gear and the pinion are arranged up and down and are meshed and connected with each other, a return spring is sleeved on the first rotating shaft, one end of the return spring is fixedly connected with the mounting plate through a connecting rod, and the other end of the return spring is fixedly connected with the trigger stop arm;
and a plurality of anti-falling cross rods are uniformly arranged in the guide rail.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Furthermore, the end part of the limit stop arm is wedge-shaped;
the upper surface of bottom plate is seted up flutedly, the elastic limiting block by one end with recess bottom end fixed connection's spring with fix the wedge block group at the spring upper end and constitute, after the spring compression the wedge block can hold completely in the recess.
Furthermore, a through hole penetrating through the bottom plate is formed in the middle of the lower end of the groove, the lower end of the wedge-shaped block is fixedly connected with a pull rod, and the pull rod penetrates out of the through hole and is fixedly connected with the handle.
Furthermore, the included angle between the anti-falling blocking arm and the limiting blocking arm is 90 degrees.
Further, two the mounting panel is close to the gyro wheel is all connected through the connecting block at the upper and lower both ends of the one side of guide rail, the opening orientation of the channel-section steel of guide rail both sides mounting panel one side, gyro wheel sliding connection be in the channel-section steel.
Furthermore, the end part of the anti-falling blocking arm is provided with an arc-shaped groove matched with the anti-falling cross rod.
Furthermore, the upper end of the mounting plate is provided with a dust guard.
Furthermore, the two ends of the first rotating shaft and the second rotating shaft are connected to the mounting plate through bearings.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a lifting scaffold prevents weighing down and uses safety device, it sets up two intermeshing's master gear and pinion from top to bottom through setting up between the mounting panel, set up on the master gear and trigger the fender arm, set up on the pinion and prevent weighing down fender arm and spacing fender arm, when the guide rail normally ascends, trigger the fender arm and drive the master gear anticlockwise slow rotation, simultaneously, the pinion is driven clockwise slow rotation by the master gear, prevent weighing down fender arm and spacing fender arm on it can not influence the normal rising of guide rail 2; when the guide rail normally descends, the speed is slow, the trigger baffle arm drives the main gear to slowly rotate clockwise, meanwhile, the pinion is driven by the main gear to slowly rotate anticlockwise, when the anti-falling baffle arm is close to the lower end of the anti-falling cross rod, the reset spring on the first rotating shaft pulls the trigger baffle arm to change the clockwise rotation of the main gear into the anticlockwise rotation, and at the moment, the pinion is changed from the anticlockwise rotation into the clockwise rotation, so that the anti-falling baffle arm is far away from the anti-falling cross rod, and the normal descending of the guide rail 2 cannot be influenced; when the guide rail falls and descends rapidly, the trigger arm is quickly rotated clockwise after being touched by the anti-falling cross rod, and meanwhile, the anti-falling arm and the limiting arm are quickly rotated anticlockwise, when the anti-falling arm is about to contact the lower end of the anti-falling cross rod, because the trigger arm is influenced by the inertia and gravity of the trigger arm, the reset spring cannot reset in time, therefore, the anti-falling arm and the limiting arm continue to rotate anticlockwise, the limiting arm breaks through the elasticity of the spring limiting block, the right side finally positioned on the spring limiting block is clamped by the spring limiting block, so that the spring limiting block cannot rotate clockwise, just, the upper end of the anti-falling arm supports against the lower end of the anti-falling cross rod, and the purpose of preventing the guide rail from falling is realized.
2. The utility model discloses a lifting foot hand rack prevents weighing down and uses safety device, it is through setting up elastic limiting block, and elastic limiting block's lower extreme passes through the pull rod and connects the handle, and first make things convenient for the homing of the spacing arm that keeps off after anti-falling device uses, and second increases the heavy burden of wedge through the handle, changes the elasticity card that breaks through the spring when making spacing arm rotatory on elastic limiting block's right side, further guarantees anti-falling device's feasibility, improves the security performance of this device.
Drawings
FIG. 1 is a schematic view of the overall structure of the safety protection device for preventing falling of the lifting scaffold provided by the present invention;
FIG. 2 is a schematic side sectional view of the safety protection device for preventing falling of the lifting scaffold provided by the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is a schematic front sectional view of the safety protection device for preventing falling of the lifting scaffold provided by the present invention;
FIG. 5 is a top view of the safety device for preventing falling of the lifting scaffold provided by the present invention;
FIG. 6 is a schematic structural view of the fall preventing device according to the embodiment of the present invention when the guide rail is raised;
FIG. 7 is a schematic structural view of the anti-falling device when the guide rail descends slowly in the embodiment of the present invention;
FIG. 8 is a schematic structural view of the anti-falling device when the guide rail descends rapidly in the embodiment of the present invention;
description of reference numerals:
1. a mounting seat; 11. a substrate; 12. mounting a plate; 121. connecting blocks; 122. a roller; 13. a base plate; 131. a groove; 132. a through hole; 14. a dust-proof plate;
2. a guide rail; 21. the anti-falling cross bar; 22. channel steel;
3. the anti-falling device; 31. a first rotating shaft; 32. a second rotating shaft; 33. a main gear; 34. a pinion gear; 35. triggering the catch arm; 36. an anti-falling blocking arm; 361. an arc-shaped slot; 37. a limiting stop arm; 38. an elastic limiting block; 381. a spring; 382. a wedge block; 383. a pull rod; 384. a handle; 39. a return spring; 310. a connecting rod; 311. and a bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 8, a safety protection device for preventing falling of a lifting scaffold comprises a mounting base 1, a guide rail 2 and a falling prevention device 3 arranged in the mounting base 1;
the mounting seat 1 comprises a base plate 11 fixedly connected with the outer wall of the building, mounting plates 12 arranged on two sides of one surface of the base plate 11, which is far away from the outer wall of the building, and a bottom plate 13 arranged at the lower ends of the mounting plates 12, wherein the mounting plates 12 are connected with the guide rails 2 in a vertical sliding mode;
the anti-falling device 3 comprises a main gear 33 which is rotatably connected between the mounting plates 12 through a first rotating shaft 31 and an auxiliary gear 34 which is rotatably connected between the mounting plates 12 through a second rotating shaft 32, a trigger blocking arm 35 is fixedly arranged on the main gear 33, an anti-falling blocking arm 36 and a limiting blocking arm 37 are fixedly arranged on the auxiliary gear 34, the limiting blocking arm 37 is arranged on the left side of the anti-falling blocking arm 36, a certain included angle is formed between the anti-falling blocking arm and the limiting blocking arm, and an elastic limiting block 38 matched with the limiting blocking arm 37 is arranged at the lower end of the bottom plate 13;
the main gear 33 and the pinion 34 are arranged up and down and are meshed with each other, a return spring 39 is sleeved on the first rotating shaft 31, one end of the return spring 39 is fixedly connected with the mounting plate 12 through a connecting rod 310, and the other end of the return spring 39 is fixedly connected with the trigger stop arm 35;
a plurality of anti-falling cross rods 21 are uniformly arranged in the guide rail 2.
In the present invention, when the guide rail 2 normally ascends, as shown in fig. 6, the anti-falling cross bar 21 pushes the trigger arm 35 upwards to make the trigger arm 35 rotate counterclockwise, the trigger arm 35 drives the main gear 33 to rotate counterclockwise slowly, meanwhile, the pinion 34 is driven by the main gear 33 to rotate clockwise slowly, the reset spring 39 can reset the trigger arm 35 after rotating counterclockwise by a certain angle, but the trigger arm 35 can continue to repeat the above actions after resetting, therefore, the anti-falling arm 36 and the limit arm 37 on the pinion 34 do not affect the normal ascending of the guide rail 2; when the guide rail 2 normally descends, the speed is slow, as shown in fig. 7, the trigger arm 35 drives the main gear 33 to slowly rotate clockwise, meanwhile, the pinion 34 is driven by the main gear 33 to slowly rotate counterclockwise, when the anti-falling arm 36 approaches the lower end of the anti-falling cross bar 21, the reset spring 39 on the first rotating shaft 21 pulls the trigger arm 35, so that the clockwise rotation of the main gear 33 is changed into the counterclockwise rotation, and at the moment, the counterclockwise rotation of the pinion 34 is changed into the clockwise rotation, therefore, the anti-falling arm 36 is far away from the anti-falling cross bar 21, and the normal descending of the guide rail 2 is not influenced; when the guide rail 2 falls and rapidly descends, as shown in fig. 8, the trigger arm 35 rotates clockwise rapidly after being touched by the anti-falling cross bar 21, meanwhile, the anti-falling baffle arm 36 and the limit baffle arm 37 rotate anticlockwise quickly, when the anti-falling baffle arm 36 is about to contact the lower end of the anti-falling cross rod 21, due to the influence of inertia and gravity of the trigger arm 35 itself, the return spring 39 has no time to return, therefore, the anti-falling blocking arm 36 and the limiting blocking arm 37 continue to rotate anticlockwise, the limiting blocking arm 37 breaks through the elastic force of the spring limiting block 38, and finally the right side of the spring limiting block 38 is clamped by the spring limiting block 38, so that the anti-falling blocking arm can not rotate clockwise, and just the upper end of the anti-falling blocking arm 36 is supported against the lower end of the anti-falling cross rod 21, so that the purpose of preventing the guide rail 2 from falling is achieved.
Preferably, the end of the limit stop arm 37 is wedge-shaped;
the upper surface of the bottom plate 13 is provided with a groove 131, the elastic limiting block 38 is composed of a spring 381 and a wedge block 382, one end of the spring 381 is fixedly connected with the bottom end of the groove 131, the wedge block 382 is fixed at the upper end of the spring, and the spring 381 can be compressed to be completely accommodated in the groove 131.
In this embodiment, the wedge-shaped end of the limit arm 37 is identical to the wedge-shaped block 382 in shape and size, and when the wedge-shaped end of the limit arm 37 abuts against the wedge-shaped block 382, the two almost form a rectangular block, and as the limit arm 37 continues to rotate counterclockwise, the wedge-shaped block 382 is gradually compressed into the groove 131 by the limit arm 37, and finally, the limit arm 37 is completely located on the right side of the elastic limit block 38, i.e., is blocked by the elastic limit block 38, and cannot rotate clockwise any more.
Preferably, a through hole 132 penetrating through the bottom plate 13 is formed in the middle of the lower end of the groove 131, a pull rod 383 is fixedly connected to the lower end of the wedge block 382, and the pull rod 383 penetrates through the through hole 132 and is fixedly connected to a handle 384. The lower end of the wedge block 382 is connected with a handle 384 through a pull rod 383, so that the limiting stop arm 37 is convenient to return after the anti-falling device 3 is used, and the load of the wedge block 382 is increased through the handle 384, so that the limiting stop arm 37 is easier to break through the elastic force of the spring 381 when rotating and is clamped on the right side of the elastic limiting block 38, the feasibility of the anti-falling device 3 is further ensured, and the safety performance of the anti-falling device is improved.
Preferably, as shown in fig. 8, the included angle between the anti-falling arm 36 and the limiting arm 37 is 90 degrees, when the anti-falling arm 36 is horizontal and just abuts against the lower end of the anti-falling cross bar 21, the limiting arm 37 is just vertical and located on the right side of the elastic limiting block 38, and in this state, the formed structure of the anti-falling arm 36 and the elastic limiting block is more stable and the safety is higher.
Preferably, as shown in fig. 1 and 5, the two mounting plates 12 are connected to rollers 122 through connection blocks 121 at upper and lower ends of one surface close to the guide rail 2, openings of the channel steel 22 at two sides of the guide rail 2 face one side of the mounting plates 12, and the rollers 122 are slidably connected in the channel steel 22.
Preferably, the end of the anti-falling barrier arm 36 is provided with an arc-shaped groove 361 matched with the anti-falling cross bar 21.
Preferably, the upper end of the mounting plate 12 is provided with a dust guard 14, so that building sand stones or dust are prevented from falling onto the anti-falling device to influence the performance of each component, the safety is improved, and the service life is prolonged; on the other hand, the dust guard 14 can be fastened or connected with the mounting plate 12 through bolts, so that later inspection and maintenance are facilitated.
Preferably, as shown in fig. 4, in order to reduce the resistance, both ends of the first rotating shaft 31 and the second rotating shaft 32 are connected to the mounting plate 12 through bearings 311.
The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. The utility model provides a lifting foot hand rack prevents weighing down and uses safety device, its includes mount pad (1), guide rail (2) and establishes anti-falling device (3) in mount pad (1), its characterized in that:
the mounting seat (1) comprises a base plate (11) fixedly connected with the outer wall of the building, mounting plates (12) arranged on two sides of one surface, far away from the outer wall of the building, of the base plate (11) and a bottom plate (13) arranged at the lower end of the mounting plates (12), and the mounting plates (12) are connected with the guide rails (2) in a vertical sliding mode;
the anti-falling device (3) comprises a main gear (33) which is rotatably connected between the mounting plates (12) through a first rotating shaft (31) and an auxiliary gear (34) which is rotatably connected between the mounting plates (12) through a second rotating shaft (32), a trigger blocking arm (35) is fixedly arranged on the main gear (33), an anti-falling blocking arm (36) and a limiting blocking arm (37) are fixedly arranged on the auxiliary gear (34), the limiting blocking arm (37) is arranged on the left side of the anti-falling blocking arm (36), a certain included angle is formed between the anti-falling blocking arm and the limiting blocking arm, and an elastic limiting block (38) matched with the limiting blocking arm (37) is arranged at the lower end of the bottom plate (13);
the main gear (33) and the auxiliary gear (34) are arranged up and down and are meshed with each other, a return spring (39) is sleeved on the first rotating shaft (31), one end of the return spring (39) is fixedly connected with the mounting plate (12) through a connecting rod (310), and the other end of the return spring (39) is fixedly connected with the trigger blocking arm (35);
a plurality of anti-falling cross rods (21) are uniformly arranged in the guide rail (2).
2. The safety protection device for preventing the falling of the lifting scaffold as claimed in claim 1, characterized in that:
the end part of the limiting stop arm (37) is wedge-shaped;
the upper surface of the bottom plate (13) is provided with a groove (131), the elastic limiting block (38) is composed of a spring (381) and a wedge-shaped block (382), one end of the spring (381) is fixedly connected with the bottom end of the groove (131), the wedge-shaped block (382) is fixed at the upper end of the spring, and the spring (381) can be compressed to be completely accommodated in the groove (131).
3. The safety protection device for preventing the falling of the lifting scaffold as claimed in claim 2, wherein a through hole (132) penetrating through the bottom plate (13) is formed in the middle of the lower end of the groove (131), a pull rod (383) is fixedly connected to the lower end of the wedge block (382), and the pull rod (383) penetrates through the through hole (132) and is fixedly connected with the handle (384).
4. A safety shield against falling down of a lifting scaffold according to claim 3, characterized in that the angle between the falling stop arm (36) and the limit stop arm (37) is 90 degrees.
5. The safety protection device for preventing the falling of the lifting scaffold is characterized in that the upper end and the lower end of one surface, close to the guide rail (2), of the two mounting plates (12) are connected with a roller (122) through a connecting block (121), the openings of the channel steels (22) on two sides of the guide rail (2) face to one side of the mounting plates (12), and the roller (122) is slidably connected in the channel steels (22).
6. The safety device for preventing the falling of the lifting scaffold, which is characterized in that the end part of the falling-preventing baffle arm (36) is provided with an arc-shaped groove (361) matched with the falling-preventing cross bar (21).
7. A safety shield against fall of a lifting scaffold according to claim 1, characterized in that the upper end of the mounting plate (12) is provided with a dust guard (14).
8. A safety guard against falling for lifting scaffolding according to claim 1, characterized in that both ends of the first and second shafts (31, 32) are connected to the mounting plate (12) by bearings (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022951102.5U CN214696794U (en) | 2020-12-11 | 2020-12-11 | Safety protection device for falling prevention of lifting scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022951102.5U CN214696794U (en) | 2020-12-11 | 2020-12-11 | Safety protection device for falling prevention of lifting scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214696794U true CN214696794U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022951102.5U Active CN214696794U (en) | 2020-12-11 | 2020-12-11 | Safety protection device for falling prevention of lifting scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214696794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934661A (en) * | 2022-05-25 | 2022-08-23 | 贵州建工集团第一建筑工程有限责任公司 | Construction and use method of scaffold |
| CN115142658A (en) * | 2022-08-17 | 2022-10-04 | 中建七局第二建筑有限公司 | Combined attached lifting scaffold system |
-
2020
- 2020-12-11 CN CN202022951102.5U patent/CN214696794U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934661A (en) * | 2022-05-25 | 2022-08-23 | 贵州建工集团第一建筑工程有限责任公司 | Construction and use method of scaffold |
| CN115142658A (en) * | 2022-08-17 | 2022-10-04 | 中建七局第二建筑有限公司 | Combined attached lifting scaffold system |
| CN115142658B (en) * | 2022-08-17 | 2024-03-15 | 中建七局第二建筑有限公司 | Combined attached lifting scaffold system |
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