An adjustable heavy-duty lifting device that can be easily disassembled and assembled

Abstract

The utility model relates to an easily disassembled and assembled adjustable heavy-duty hanger in the technical field of heavy-duty protective doors, comprising an upper and lower adjusting hanger, a positioning base being installed on the top of one side of the upper and lower adjusting hanger. The upper and lower adjusting hanger, the positioning base, the balancing shaft, the clamping plate and the fixing screws are arranged to solve the current installation problem that the entire door body needs to be disassembled and reinstalled when replacing the adjustable wheel set. At the same time, the installation steps are simplified. When replacing the adjustable wheel set, it is not necessary to suspend the entire door body and the adjustable wheel set before replacing them. Only one of the adjustable wheel sets of the door body needs to be suspended. The adjustable wheel set can be replaced by removing the fixing screws of the clamping plate, which greatly improves the safety of the installation for the workers, avoids the risk of replacing the hanger after the entire door body is off the track, and directly eliminates the possibility of the heavy door body tipping over. At the same time, the height of the adjustable wheel set can be adjusted, the width of the underground door gap can be accurately adjusted, and the protective effect of the door body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy-duty protective doors, in particular to an adjustable heavy-duty lifting device which can be easily disassembled and assembled. Background Art

[0002] A protective door is a door that can withstand various shock waves or heavy object collisions. It is generally made of steel. In radiation protection, the weight of a heavy-duty protective door is generally between 1 ton and 5 tons. Its weight is very large, and the wheels wear out quickly during use. The existing hoisting wheels on the market cannot replace the wheels alone. Each time a damaged wheel is replaced, the door body needs to be disassembled and replaced. This replacement is difficult and has certain risks. In hospitals with high work intensity, the replacement of the wheels of heavy doors takes a long time, which cannot meet the needs of the hospital. Each time the wheels are replaced, a certain amount of time is required for debugging, and it cannot be put online immediately, which increases the cost of manpower and material resources, and also affects the normal use of the hospital. For this reason, we propose an adjustable heavy-duty hoist that is easy to disassemble and assemble. Utility Model Content

[0003] In view of the above problems, the utility model provides an adjustable heavy-duty lifting device that is easy to disassemble and assemble, which has the advantage of convenient replacement of U-shaped wheels.

[0004] The technical solution of the utility model is:

[0005] An adjustable heavy-duty sling that is easily disassembled and assembled comprises an up and down adjustment seat, a positioning base is installed on the top of one side of the up and down adjustment seat, a balancing shaft is fixedly installed on one side of the positioning base, an "O"-shaped groove is opened on the surface of one side of the up and down adjustment seat, one end of the balancing shaft passes through the "O"-shaped groove and extends to the other side of the up and down adjustment seat, an extending part of the balancing shaft is sleeved with an adjusting screw, a clamping plate is installed on the top of the positioning base, and the clamping plate is bolted to the positioning base through four set fixing screws.

[0006] In a further technical solution, two adjustable wheel groups are installed in the middle position of the positioning base and the clamping plate, and the adjustable wheel group includes a U-shaped wheel, a bearing is installed in the middle position of the U-shaped wheel, an adjustable shaft passes through the middle of the bearing, an end nut is installed at one end of the adjustable shaft, and a retaining spring is installed at the other end of the adjustable shaft.

[0007] In a further technical solution, the upper surface of the positioning base is provided with two arc grooves, the lower surface of the clamping plate is provided with two clamping grooves, the arc grooves and the clamping grooves correspond to each other, and the adjustable shaft passes through the hole formed by the arc grooves and the clamping grooves.

[0008] In a further technical solution, the retaining spring is an annular structure with an opening at the bottom end, and the two ends of the retaining spring are connected by rivets.

[0009] In a further technical solution, a gasket is provided in the middle position between the adjusting screw and the upper and lower adjusting seats, and the gasket is sleeved on the surface of the balancing shaft.

[0010] The beneficial effects of the utility model are:

[0011] The upper and lower adjustment hangers, positioning bases, balancing shafts, clamping plates and fixing screws are provided to solve the current installation problem of dismantling and reinstalling the entire door body when replacing the adjustable wheel set. At the same time, the installation steps are simplified. When replacing the adjustable wheel set, there is no need to suspend the entire door body and the adjustable wheel set before replacing them. Only one of the adjustable wheel sets of the door body needs to be suspended, and the adjustable wheel set can be replaced by removing the fixing screws of the clamping plate. This greatly improves the safety of the workers' installation, avoids the risk of replacing the hoist after the entire door body is off the track, and directly eliminates the possibility of tipping over of the heavy door body. At the same time, the height of the adjustable wheel set can be adjusted, and the width of the underground door gap can be accurately adjusted to improve the protection effect of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the upper and lower adjustment of the hanging seat in the embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the adjustable wheel set in the embodiment of the utility model;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the adjustable wheel set according to the embodiment of the utility model.

[0016] Description of reference numerals:

[0017] 1. Adjust the hanger up and down; 2. Position the base; 3. Balance shaft; 4. Adjustable wheel set; 5. Pressure plate; 6. Fixing screw; 7. Adjusting screw; 8. Gasket; 9. Adjustable shaft; 10. End nut; 11. Bearing; 12. U-shaped wheel; 13. Circlip. DETAILED DESCRIPTION

[0018] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0019] Example:

[0020] like Figure 1-Figure 4As shown, an adjustable heavy-duty sling that is easily disassembled and assembled includes an up and down adjustment seat 1, characterized in that a positioning base 2 is installed at the top of one side of the up and down adjustment seat 1, a balancing shaft 3 is fixedly installed on one side of the positioning base 2, an "O"-shaped groove is opened on the surface of one side of the up and down adjustment seat 1, one end of the balancing shaft 3 passes through the "O"-shaped groove and extends to the other side of the up and down adjustment seat 1, an adjusting screw 7 is sleeved on the extended part of the balancing shaft 3, a clamping plate 5 is installed at the top of the positioning base 2, the clamping plate 5 is bolted to the positioning base 2 by four set fixing screws 6, and two adjustable wheel groups 4 are installed in the middle of the positioning base 2 and the clamping plate 5.

[0021] The working principle of the above technical solution is as follows:

[0022] When the adjustable wheel set 4 needs to be replaced, the four fixing screws 6 on the clamping plate 5 can be screwed so that the clamping plate 5 can be separated on the positioning base 2. After the clamping plate 5 is separated, the two adjustable wheel sets 4 can be disassembled and replaced. When the height of the two adjustable wheel sets 4 needs to be adjusted, the adjusting screw 7 can be screwed to allow the balancing shaft 3 to move in the "O"-shaped groove on the upper and lower adjustment bracket 1, so as to adjust the height of the balancing shaft 3, thereby changing the height of the adjustable wheel set 4, and then tighten the adjusting screw 7 to fix the balancing shaft 3.

[0023] In another embodiment, if Figure 3 and Figure 4 As shown, the adjustable wheel set 4 includes a U-shaped wheel 12, a bearing 11 is installed in the middle position of the U-shaped wheel 12, an adjustable shaft 9 passes through the middle of the bearing 11, an end nut 10 is installed at one end of the adjustable shaft 9, and a retaining spring 13 is installed at the other end of the adjustable shaft 9. By installing two bearings 11 on the adjustable shaft 9 and then positioning the bearings 11 using the retaining spring 13, the U-shaped wheel 12 can roll on the adjustable shaft 9.

[0024] In another embodiment, if Figure 1 As shown, two arc grooves are provided on the upper surface of the positioning base 2, and two clamping grooves are provided on the lower surface of the clamping plate 5. The arc grooves and the clamping grooves correspond to each other, and the adjustable shaft 9 passes through the holes formed by the arc grooves and the clamping grooves, thereby facilitating the clamping installation of the adjustable shaft 9 and improving the disassembly effect.

[0025] In another embodiment, if Figure 3 As shown, the retaining spring 13 is a ring structure with an opening at the bottom end, and the two ends of the retaining spring 13 are connected by rivets, so that the retaining spring 13 can be used to position the two bearings 11.

[0026] In another embodiment, if Figure 1As shown, there is a gasket 8 between the adjusting screw 7 and the upper and lower adjusting brackets 1, and the gasket 8 is sleeved on the surface of the balancing shaft 3. The setting of the gasket 8 can effectively fix the balancing shaft 3 to prevent it from shaking.

[0027] The above embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An adjustable heavy-duty sling that can be easily assembled and disassembled, comprising a sling seat (1) for adjusting the sling up and down, characterized in that: A positioning base (2) is installed at the top of one side of the up-and-down adjustment hanger (1), a balancing shaft (3) is fixedly installed on one side of the positioning base (2), an "O"-shaped groove is opened on the surface of one side of the up-and-down adjustment hanger (1), one end of the balancing shaft (3) passes through the "O"-shaped groove and extends to the other side of the up-and-down adjustment hanger (1), an extending part of the balancing shaft (3) is sleeved with an adjusting screw (7), a clamping plate (5) is installed at the top of the positioning base (2), and the clamping plate (5) is bolted to the positioning base (2) through four fixed screws (6).

2. The easily disassembled and adjustable heavy-duty sling according to claim 1, characterized in that: Two adjustable wheel groups (4) are installed in the middle position of the positioning base (2) and the pressing plate (5), and the adjustable wheel group (4) includes a U-shaped wheel (12). A bearing (11) is installed in the middle position of the U-shaped wheel (12), and an adjustable shaft (9) passes through the middle of the bearing (11). An end nut (10) is installed at one end of the adjustable shaft (9), and a retaining spring (13) is installed at the other end of the adjustable shaft (9).

3. The easily disassembled and adjustable heavy-duty sling according to claim 2 is characterized in that: The upper surface of the positioning base (2) is provided with two arc-shaped grooves, and the lower surface of the clamping plate (5) is provided with two clamping grooves, the arc-shaped grooves and the clamping grooves correspond to each other, and the adjustable shaft (9) passes through the holes formed by the arc-shaped grooves and the clamping grooves.

4. The easily disassembled and adjustable heavy-duty lifting device according to claim 2 is characterized in that: The clamping spring (13) is a ring-shaped structure with an opening at the bottom end, and the two ends of the clamping spring (13) are connected by rivets.

5. The easily disassembled and adjustable heavy-duty lifting device according to claim 1 is characterized in that: A gasket (8) is provided in the middle between the adjusting screw (7) and the upper and lower adjusting hangers (1), and the gasket (8) is sleeved on the surface of the balancing shaft (3).

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