Protective kit for electric hoist chain for attached scaffolding

Abstract

The utility model discloses a protection kit of electric hoist chain for attached scaffold, belongs to the field of building construction technology, include: the shell seat, the left and right sides of shell seat all are provided with the side plate, and the bolt connection between two groups of side plates, and the side plate on the right side close to shell seat is installed with traction motor through bolt, and the output shaft of traction motor is fixed with the sprocket, and the side plate on the left side close to shell seat is installed with counterweight through bolt, the utility model's protection pipe adopts the corrugated pipe structure of rubber material, and the upper end is fixed with shell seat lower extreme, and the lower extreme is covered on the base, can effectively block dust, rain, humid air and corrosive substance erosion to traction chain, and the chain bag inside fills up has the maintenance oil, and in the traction chain operation process, the rotating brush can evenly smear the maintenance oil on the traction chain, realizes the automatic lubrication to the traction chain, reduces the friction between chain and sprocket, guarantees the smoothness of scaffold lifting, improves construction efficiency and equipment stability.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a protective kit for electric hoist chains used in attached scaffolding. Background Technology

[0002] In modern construction, attached scaffolding is widely used in various construction projects due to its advantages such as material saving, convenient construction, and the ability to be raised and lowered according to the construction progress. As a key component of the attached scaffolding lifting system, the electric hoist realizes the lifting and lowering operation of the scaffolding through chain transmission. During frequent lifting and lowering operations, the electric hoist chain not only has to withstand a large tensile force, but is also affected by the complex environment of the construction site, such as dust, rain, humid air, and various corrosive substances. Therefore, a protective kit for the electric hoist chain of attached scaffolding is designed.

[0003] In existing protective technologies, chains are easily exposed to dust, rain, humid air, and corrosive substances, resulting in severe wear and corrosion problems. This leads to short chain lifespan, high replacement costs, increased safety risks, and the chains do not receive timely and even lubrication, reducing construction efficiency and equipment stability. Utility Model Content

[0004] To address the technical problems mentioned in the background section, a protective kit for the chain of an electric hoist used in attached scaffolding is provided.

[0005] To achieve the above objectives, the specific technical solution for the protective kit of the electric hoist chain for attached scaffolding of this utility model is as follows: A protective kit for the chain of an electric hoist used in attached scaffolding includes: a housing, with side plates on both the left and right sides of the housing, the two sets of side plates being connected by bolts; a traction motor is bolted to the side plate near the right side of the housing, and a sprocket is fixed to the output shaft of the traction motor; a counterweight is bolted to the side plate near the left side of the housing; a wire hole is provided on the housing, through which a power cord is installed, and the power cord is electrically connected to the traction motor; two sets of through holes are provided at the lower end of the housing, the two sets of through holes being used for the output and retrieval of the chain respectively; a hanger is bolted between the two sets of side plates, and a waist-shaped through groove is provided on the hanger, within which a central rod is bolted, and a rotating brush is mounted on the central rod via a bearing.

[0006] Furthermore, a top cover is fixedly connected to the lower end of the hanging base, a through groove is provided in the middle of the top cover, and a chain bag is installed at the lower end of the top cover by a buckle, the inside of the chain bag is filled with maintenance oil.

[0007] Furthermore, a traction chain is fixed to the lower end of the housing, the traction chain meshes with the sprocket on the output shaft of the traction motor, a base is fixedly connected to the lower end of the traction chain, and a movable spring is sleeved on the traction chain, with the lower end of the spring contacting the upper end of the base.

[0008] Furthermore, a protective tube is fitted onto the traction chain. The protective tube has a corrugated structure and is made of rubber. The upper end of the protective tube is fixedly connected to the lower end of the housing, and the lower end of the protective tube is fitted onto the base. A top ring is fitted onto the protective tube, and a bottom ring is provided below the top ring. Six sets of connecting plates are installed between the top ring and the bottom ring by bolts. Six sets of round holes are arranged in a ring on the top ring.

[0009] Furthermore, six sets of clamping plates are hinged on the bottom ring. A sliding groove is provided at one end of the six sets of clamping plates away from the center of the top ring. Threaded rods are installed in the sliding grooves through pins. The upper ends of the six sets of threaded rods pass through six sets of through holes on the top ring, and each of the six sets of threaded rods is threaded with an adjusting cap. The lower end of the protective tube is clamped to the base by the six sets of clamping plates.

[0010] Furthermore, a connecting screw is connected between the two sets of side plates, a top hook is installed on the connecting screw, a pin is installed on the top hook, an anti-detachment plate is installed on the pin, and a torsion spring is sleeved on the pin.

[0011] Furthermore, a rotatable hook seat is mounted on the base via a pin, a bottom hook is hinged to the hook seat, a locking groove is provided on the hook seat, and a locking plate is mounted on the bottom hook via a pin, the locking plate being pressed against the locking groove on the hook seat.

[0012] The protective kit for the chain of an electric hoist used in attached scaffolding of this utility model has the following advantages: In this utility model's protective kit, the protective tube adopts a corrugated rubber structure, with its upper end fixed to the lower end of the housing and its lower end fitted onto the base. This effectively blocks dust, rainwater, humid air, and corrosive substances from eroding the traction chain, greatly reducing wear and corrosion of the chain caused by external environmental factors, significantly extending the chain's service life, and reducing the cost of replacing the chain and safety risks during construction.

[0013] In this invention, the chain bag is filled with maintenance oil. During the operation of the traction chain, the rotating brush can evenly apply the maintenance oil to the traction chain, thereby achieving automatic lubrication of the traction chain, reducing the friction between the chain and the sprocket, ensuring the smooth lifting of the scaffolding, and improving construction efficiency and equipment stability.

[0014] In this utility model, the top hook is equipped with an anti-detachment plate and a torsion spring, and the bottom hook is equipped with a locking plate and a locking groove, which can effectively prevent the hook from accidentally falling off during the hoisting process, providing a more reliable safety guarantee for the lifting operation of the entire attached scaffold and avoiding safety accidents caused by hook falling off.

[0015] In this utility model, the locking groove on the hook seat cooperates with the locking plate installed on the bottom hook by a pin. After the hook hooks a heavy object, the locking plate can be pressed against the locking groove to form a reliable locking structure, preventing the hook from opening on its own due to shaking, collision or other unexpected situations during the lifting process, and further improving the safety of the lifting operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the shell base part of this utility model; Figure 3 For the present utility model Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the top hook portion of this utility model; Figure 5 This is a schematic diagram of the base portion of this utility model; Figure 6 For the present utility model Figure 5 A magnified structural diagram of part B in the middle section; Figure 7 This is a schematic diagram of the hook seat portion of this utility model; Figure 8 This is a schematic diagram of the top ring portion of this utility model.

[0017] Explanation of markings in the diagram: 1. Housing base; 11. Side plate; 111. Connecting screw; 112. Top hook; 1121. Pin; 1122. Anti-detachment plate; 1123. Torsion spring; 12. Traction motor; 13. Counterweight; 2. Traction chain; 21. Base; 22. Hook seat; 23. Bottom hook; 231. Locking plate; 24. Protective tube; 25. Top ring; 251. Connecting plate; 252. Bottom ring; 2521. Clamping plate; 2522. Threaded rod; 2523. Adjusting cap; 26. Spring; 3. Hanging seat; 31. Top cover; 32. Chain bag; 33. Center rod; 331. Rotating brush. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0020] The following is a reference to the appendix. Figure 1 To be continued Figure 8 This invention describes a protective kit for the chain of an electric hoist used in attached scaffolding.

[0021] This utility model proposes a protective kit for the chain of an electric hoist used in attached scaffolding, including: a housing 1, with side plates 11 on both the left and right sides of the housing 1, the two sets of side plates 11 being connected by bolts, a traction motor 12 being bolted to the side plate 11 near the right side of the housing 1, a sprocket being fixed to the output shaft of the traction motor 12, a counterweight 13 being bolted to the side plate 11 near the left side of the housing 1, a wire hole being provided on the housing 1, a power cord being installed in the wire hole, the power cord being electrically connected to the traction motor 12, two sets of through holes being provided at the lower end of the housing 1, the two sets of through holes being used for the output and retrieval of the chain respectively, a hanging seat 3 being bolted between the two sets of side plates 11, a waist-shaped through groove being provided on the hanging seat 3, a central rod 33 being bolted to the waist-shaped through groove, and a rotating brush 331 being mounted on the central rod 33 via a bearing.

[0022] In this embodiment, a top cover 31 is fixedly connected to the lower end of the hanging base 3. A through groove is provided in the middle of the top cover 31. A chain bag 32 is installed at the lower end of the top cover 31 by a snap-fit ​​method. The chain bag 32 is filled with maintenance oil. Its function is: the chain bag 32 is filled with maintenance oil. As the traction chain 2 moves, the rotating brush 331 can evenly apply the maintenance oil in the chain bag 32 to the traction chain 2, thereby realizing automatic lubrication of the traction chain 2.

[0023] In this embodiment, a traction chain 2 is fixed to the lower end of the housing 1. The traction chain 2 meshes with the sprocket on the output shaft of the traction motor 12. A base 21 is fixedly connected to the lower end of the traction chain 2. A movable spring 26 is sleeved on the traction chain 2. The lower end of the spring 26 contacts the upper end of the base 21. Its function is that the spring 26 can absorb and disperse energy through its own elastic deformation, and play a buffering and protective role for the traction chain 2 and the entire system.

[0024] In this embodiment, a protective tube 24 is fitted onto the traction chain 2. The protective tube 24 has a corrugated structure and is made of rubber. The upper end of the protective tube 24 is fixedly connected to the lower end of the housing 1, and the lower end of the protective tube 24 is fitted onto the base 21. A top ring 25 is fitted onto the protective tube 24, and a bottom ring 252 is provided below the top ring 25. Six sets of connecting plates 251 are bolted between the top ring 25 and the bottom ring 252. The top ring 25 has six sets of circular holes arranged in a ring. The function of the protective tube 24 is to effectively block dust, rainwater, humid air and corrosive substances, prevent the traction chain 2 from being directly exposed to harsh environments, reduce wear and corrosion, and thus extend the service life of the traction chain 2.

[0025] In this embodiment, six sets of clamping plates 2521 are hinged to the bottom ring 252. A sliding groove is provided at one end of the six sets of clamping plates 2521 away from the center of the top ring 25. A threaded rod 2522 is installed in the sliding groove through a pin. The upper ends of the six sets of threaded rods 2522 pass through six sets of through holes on the top ring 25, and each of the six sets of threaded rods 2522 is threaded with an adjusting cap 2523. The lower end of the protective tube 24 is clamped to the base 21 by the six sets of clamping plates 2521. Its function is that the six sets of clamping plates 2521 hinged to the bottom ring 252 can firmly fix the lower end of the protective tube 24 to the base 21, effectively avoiding problems such as loosening or slippage of the protective tube 24 during use.

[0026] In Example 2, based on Example 1, a connecting screw 111 connects the two sets of side plates 11. A top hook 112 is installed on the connecting screw 111, a pin 1121 is installed on the top hook 112, an anti-slip plate 1122 is installed on the pin 1121, and a torsion spring 1123 is sleeved on the pin 1121. Its function is: when lifting heavy objects, the anti-slip plate 1122 is tightly fitted to the opening of the hook under the action of the torsion spring 1123 to prevent the heavy objects from slipping off the hook.

[0027] In Example 3, based on Examples 1 and 2, a rotatable hook seat 22 is installed on the base 21 via a pin. A bottom hook 23 is hinged to the hook seat 22. A locking groove is provided on the hook seat 22. A locking plate 231 is installed on the bottom hook 23 via a pin. The locking plate 231 is pressed against the locking groove on the hook seat 22. Its function is: when lifting heavy objects, the locking plate 231 is pressed against the locking groove to form a reliable locking structure, preventing the bottom hook 23 from opening on its own due to shaking, collision, etc., and the heavy object from falling.

[0028] The working principle of this embodiment is as follows: When it is necessary to raise and lower the attached scaffold, the power is turned on and the current is transmitted to the traction motor 12 through the power line. The traction motor 12 starts and its output shaft drives the sprocket to rotate. Since the traction chain 2 and the sprocket mesh with each other, the rotational motion of the sprocket is converted into the linear motion of the traction chain 2. The lower end of the traction chain 2 is connected to the base 21, and the base 21 then drives the attached scaffold to rise or fall, so as to realize the raising and lowering operation of the scaffold. During the lifting and lowering of the scaffolding, the protective pipe 24 can effectively block dust, rainwater, humid air and corrosive substances at the construction site, preventing these factors from causing wear and corrosion to the traction chain 2, and providing all-round protection for the chain. The structure composed of the top ring 25, bottom ring 252 and connecting plate 251 ensures that the protective pipe 24 is installed firmly and prevents it from shifting or deforming during use. Construction personnel can use the threaded rod 2522 and adjusting cap 2523 to clamp the lower end of the protective pipe 24 firmly onto the base 21 using the clamping plate 2521 to ensure the protective effect. The chain bag 32 is filled with maintenance oil. As the traction chain 2 moves, the rotating brush 331 rotates on the central rod 33, evenly applying the maintenance oil from the chain bag 32 to the traction chain 2. This achieves automatic lubrication of the traction chain 2, ensuring the smooth lifting and lowering of the scaffolding, and extending the service life of the traction chain 2 and the sprocket.

[0029] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A protective kit for the chain of an electric hoist used in attached scaffolding, characterized in that, The system includes a housing (1), with side plates (11) on both the left and right sides. The two sets of side plates (11) are connected by bolts. A traction motor (12) is installed on the side plate (11) near the right side of the housing (1) by bolts. A sprocket is fixed on the output shaft of the traction motor (12). A counterweight (13) is installed on the side plate (11) near the left side of the housing (1) by bolts. A wire hole is provided on the housing (1), and a power cord is installed in the wire hole. The power cord is electrically connected to the traction motor (12). Two sets of through holes are provided at the lower end of the housing (1). The two sets of through holes are used for the output and recovery of the chain, respectively. A hanger (3) is installed between the two sets of side plates (11) by bolts. A waist-shaped through groove is provided on the hanger (3). A central rod (33) is installed in the waist-shaped through groove by bolts. A rotating brush (331) is installed on the central rod (33) by bearings.

2. The protective kit for the chain of an electric hoist used in attached scaffolding according to claim 1, characterized in that, The lower end of the hanging base (3) is fixedly connected to a top cover (31), and a through groove is provided in the middle of the top cover (31). A chain bag (32) is installed at the lower end of the top cover (31) by means of a buckle, and the inside of the chain bag (32) is filled with maintenance oil.

3. The protective kit for the chain of an electric hoist used in attached scaffolding according to claim 1, characterized in that, The lower end of the housing (1) is fixed with a traction chain (2), which meshes with the sprocket on the output shaft of the traction motor (12). The lower end of the traction chain (2) is fixedly connected to a base (21), and a movable spring (26) is sleeved on the traction chain (2). The lower end of the spring (26) contacts the upper end of the base (21).

4. The protective kit for the chain of an electric hoist used in attached scaffolding according to claim 3, characterized in that, The traction chain (2) is fitted with a protective tube (24), which has a corrugated tube structure and is made of rubber. The upper end of the protective tube (24) is fixedly connected to the lower end of the housing (1), and the lower end of the protective tube (24) is fitted on the base (21). A top ring (25) is fitted on the protective tube (24), and a bottom ring (252) is provided below the top ring (25). Six sets of connecting plates (251) are installed between the top ring (25) and the bottom ring (252) by bolts. Six sets of round holes are arranged in a ring on the top ring (25).

5. The protective kit for the chain of an electric hoist used in attached scaffolding according to claim 4, characterized in that, The bottom ring (252) is hinged with six sets of clamping plates (2521). The end of the six sets of clamping plates (2521) away from the center of the top ring (25) is provided with a sliding groove. A threaded rod (2522) is installed in the sliding groove through a pin. The upper ends of the six sets of threaded rods (2522) pass through six sets of through holes on the top ring (25), and each of the six sets of threaded rods (2522) is threaded with an adjusting cap (2523). The lower end of the protective tube (24) is clamped to the base (21) by the six sets of clamping plates (2521).

6. The protective kit for the chain of an electric hoist used in attached scaffolding according to claim 1, characterized in that, The two sets of side plates (11) are connected by a connecting screw (111), a top hook (112) is installed on the connecting screw (111), a pin (1121) is installed on the top hook (112), an anti-detachment plate (1122) is installed on the pin (1121), and a torsion spring (1123) is sleeved on the pin (1121).

7. The protective kit for the chain of an electric hoist used in attached scaffolding according to claim 5, characterized in that, A rotatable hook seat (22) is installed on the base (21) by means of a pin. A bottom hook (23) is hinged on the hook seat (22). A locking groove is provided on the hook seat (22). A locking plate (231) is installed on the bottom hook (23) by means of a pin. The locking plate (231) is pressed against the locking groove on the hook seat (22).

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