Limiting counter weight of anti-overwinding switch

Abstract

The invention discloses a limiting counter weight of an anti-overwinding switch, and belongs to the technical field of anti-overwinding switches, the limiting counter weight comprises a shell assembly, a vertical hinged door is arranged on one side of the shell assembly, the shell assembly and the vertical hinged door are connected through a connecting assembly, two hanging tables are arranged above the shell assembly, and the two hanging tables are arranged on the upper portion of the shell assembly. A buffer lighting device is arranged on the outer side of the shell assembly and located below the two hanging tables, and the two hanging tables are connected with the buffer lighting device through height adjusting devices. By arranging the buffer lighting device, the heavy hammer can perform certain buffer work on collision impact encountered by the shell assembly through cooperation of an elastic rubber frame, a first damper and other structures when needed, so that the possibility that the shell assembly is accidentally damaged is reduced, and then the working capacity of the heavy hammer is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of over-rolling prevention switches, and in particular relates to a limit weight of an over-rolling prevention switch. Background Art

[0002] The overwinding prevention switch is an electrical automatic protection switch used to prevent overwinding of wire ropes in lifting machinery.

[0003] Chinese patent application number 202122046209.X discloses a limit weight for an anti-overwinding switch, comprising: a shell, a side wall of the shell is hinged with a swing door, a plurality of positioning grooves are provided inside the shell, at least one positioning groove is provided with a counterweight block, the shell is provided with a locking column, and the swing door is fixedly connected with a locking assembly that cooperates with the locking column. The overall weight of the limit weight can be adjusted by cooperating between the swing door and the shell and the positioning groove and the counterweight block. At the same time, the swing door and the shell can be quickly driven to open and close quickly through the cooperation of the locking assembly and the locking column.

[0004] 1. The above-mentioned disclosed patent has the problem that the shell is easily damaged due to collision with other structures during operation and cannot provide auxiliary lighting when needed, thereby reducing the working capacity of the weight; 2. The above-mentioned disclosed patent has the problem that the overall height of the limit weight cannot be adjusted according to the needs of different situations, thereby reducing the practicality of the weight. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a limit weight for an anti-overwinding switch, which has the characteristics of high working capacity and strong practicality.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a limit weight for an anti-overwinding switch, comprising a shell assembly, a swing door is provided on one side of the shell assembly, the shell assembly and the swing door are connected via a connecting assembly, two hanging platforms are provided above the shell assembly, two hanging platforms are provided above the shell assembly, a buffer lighting device is provided on the outside of the shell assembly and below the two hanging platforms, and the two hanging platforms and the buffer lighting device are connected via a height adjustment device.

[0007] Preferably, the buffer lighting device includes an outer frame, an elastic rubber tube and a second damper. The outer frame is arranged on the outside of the shell assembly and below the two hanging platforms. Elastic rubber tubes are installed between the outer top surface of the shell assembly and the inner top surface of the outer frame and between the outer bottom surface of the shell assembly and the inner bottom surface of the outer frame. Second dampers are installed between the outer top surface of the shell assembly and the inner top surface of the outer frame and between the outer bottom surface of the shell assembly and the inner bottom surface of the outer frame and inside the elastic rubber tube.

[0008] Preferably, the buffer lighting device also includes an elastic rubber frame, a protective plate and a first damper. Elastic rubber frames are installed on both sides of the outer frame body, a protective plate is installed on the side of the elastic rubber frame away from the outer frame body, and two first dampers are installed between the protective plate and the outer frame body and on the inner side of the elastic rubber frame.

[0009] Preferably, the buffer lighting device further comprises a rotating plate and a first screw rod, the first screw rod is threadedly mounted on the inner side of the protective plate and between the two first dampers, and the rotating plate is mounted on a side of the first screw rod away from the housing assembly.

[0010] Preferably, the buffer lighting device also includes a lighting lamp, and a plurality of lighting lamps are installed on the protective plate and above the rotating plate.

[0011] Preferably, the buffer lighting device further comprises a transparent shell, and the transparent shell is installed on the protective plate and at a position outside the plurality of lighting lamps.

[0012] Preferably, the height adjustment device includes a connecting block, a knob, a second screw and a movable plate. A movable plate is arranged between the two hanging platforms and the outer frame. The two hanging platforms and the movable plate are connected by a connecting block. Knobs are arranged on both sides of the connecting block, and a second screw is installed on the side of the knob close to the movable plate.

[0013] Preferably, the height adjustment device further comprises a limit plate, and the limit plate is installed below the second screw rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a buffer lighting device so that the heavy hammer can, when necessary, perform a certain buffering work on the collision impact encountered by the shell assembly through the cooperation of structures such as the elastic rubber frame and the first damper, thereby reducing the possibility of accidental damage to the shell assembly and further improving the working capacity of the heavy hammer.

[0016] 2. The present invention provides a buffer lighting device so that the heavy hammer can provide auxiliary lighting to the surrounding area through the lighting lamp when needed, so as to better meet the needs of maintenance or insufficient light, thereby improving the working capacity of the heavy hammer.

[0017] 3. The present invention provides a height adjustment device so that the staff can adjust the positions of the two hanging platforms by turning two knobs when necessary, thereby adjusting the overall height of the limit weight, which better meets the work needs in different situations and improves the practicability of the weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the buffer lighting device of the present invention;

[0021] Figure 4 For the present invention Figure 3 Sectional view in the AA direction;

[0022] Figure 5 It is a schematic structural diagram of the height adjustment device of the present invention.

[0023] In the figure: 1. Shell assembly; 2. Buffer lighting device; 201. Outer frame; 202. Elastic rubber frame; 203. Turn plate; 204. First screw; 205. Protective plate; 206. First damper; 207. Lighting lamp; 208. Transparent shell; 209. Elastic rubber tube; 210. Second damper; 3. Hanging table; 4. Height adjustment device; 41. Connecting block; 42. Knob; 43. Second screw; 44. Limiting plate; 45. Moving plate; 5. Swing door; 6. Connecting assembly. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1-5 The present invention provides the following technical solutions: a limit weight for an anti-overwinding switch, comprising a shell assembly 1, a swing door 5 is arranged on one side of the shell assembly 1, the shell assembly 1 and the swing door 5 are connected via a connecting assembly 6, two hanging platforms 3 are arranged above the shell assembly 1, two hanging platforms 3 are arranged above the shell assembly 1, a buffer lighting device 2 is arranged on the outside of the shell assembly 1 and below the two hanging platforms 3, and the two hanging platforms 3 and the buffer lighting device 2 are connected via a height adjustment device 4.

[0027] Specifically, the buffer lighting device 2 includes an outer frame 201, an elastic rubber tube 209 and a second damper 210. The outer frame 201 is arranged on the outside of the shell assembly 1 and below the two hanging platforms 3. The elastic rubber tube 209 is installed between the outer top surface of the shell assembly 1 and the inner top surface of the outer frame 201 and between the outer bottom surface of the shell assembly 1 and the inner bottom surface of the outer frame 201. The second damper 210 is installed between the outer top surface of the shell assembly 1 and the inner top surface of the outer frame 201 and between the outer bottom surface of the shell assembly 1 and the inner bottom surface of the outer frame 201 and inside the elastic rubber tube 209.

[0028] By adopting the above technical solution, the heavy hammer can, when necessary, perform a certain buffering work on the collision impact encountered by the shell component 1 through the cooperation of the elastic rubber tube 209 and the second damper 210 and other structures, thereby reducing the possibility of accidental damage to the shell component 1.

[0029] Specifically, the buffer lighting device 2 also includes an elastic rubber frame 202, a protective plate 205 and a first damper 206. The elastic rubber frame 202 is installed on both sides of the outer frame body 201, and the protective plate 205 is installed on the side of the elastic rubber frame 202 away from the outer frame body 201. Two first dampers 206 are installed between the protective plate 205 and the outer frame body 201 and on the inner side of the elastic rubber frame 202.

[0030] By adopting the above technical solution, the heavy hammer can, when necessary, buffer the collision impact from the left and right sides encountered by the shell component 1 through the cooperation of structures such as the elastic rubber frame 202 and the first damper 206, thereby reducing the possibility of accidental damage to the shell component 1.

[0031] Specifically, the buffer lighting device 2 also includes a rotating plate 203 and a first screw 204 . The first screw 204 is threadedly installed on the inner side of the protective plate 205 and between the two first dampers 206 . The rotating plate 203 is installed on the side of the first screw 204 away from the shell assembly 1 .

[0032] By adopting the above technical solution, the staff can fix the relative positions among the housing assembly 1, the outer frame 201 and the protective plate 205 by the first screw 204 when necessary, thereby preventing the buffering work from being performed.

[0033] Specifically, the buffer lighting device 2 further includes lighting lamps 207 , and a plurality of lighting lamps 207 are installed on the protective plate 205 and above the rotating plate 203 .

[0034] By adopting the above technical solution, the heavy hammer can provide auxiliary lighting to the surrounding area through the lighting lamp 207 when needed, thereby better meeting the needs of maintenance or insufficient light and reducing possible inconveniences.

[0035] Specifically, the buffer lighting device 2 further includes a transparent shell 208 , and the transparent shell 208 is installed on the protective plate 205 and at a position outside the plurality of lighting lamps 207 .

[0036] By adopting the above technical solution, the heavy hammer can isolate and protect each lighting lamp 207 to a certain extent through the transparent shell 208, thereby reducing the possibility of accidental damage to the lighting lamp 207 and ensuring the service life of the lighting lamp 207.

[0037] When this embodiment is used, when the anti-overwinding switch needs to use a heavy hammer, operate the connecting component 6 to open the swing door 5, adjust the weight of the shell component 1, and then operate the connecting component 6 to close the swing door 5, install the heavy hammer on the anti-overwinding switch through the two hanging platforms 3, and then rotate the two rotating plates 203 in the buffer lighting device 2, so as to unscrew the two first screws 204, so that the relative positions between the shell component 1, the outer frame 201 and the protective plate 205 lose their fixation, and the elastic rubber tube 209 and the second damper 210 between the shell component 1 and the outer frame 201, and the elastic rubber frame 202 and the first damper 206 between the outer frame 201 and the protective plate 205 can buffer the collision impact in all directions, thereby reducing the possibility of damage to the shell component 1. When necessary, the staff can start the lighting lamp 207 in the transparent shell 208 for auxiliary lighting.

[0038] Example 2

[0039] The difference between this embodiment and embodiment 1 is that the height adjustment device 4 includes a connecting block 41, a knob 42, a second screw 43 and a movable plate 45, a movable plate 45 is arranged between the two hanging platforms 3 and the outer frame 201, the two hanging platforms 3 and the movable plate 45 are connected by the connecting block 41, knobs 42 are arranged on both sides of the connecting block 41, and a second screw 43 is installed on the side of the knob 42 close to the movable plate 45.

[0040] By adopting the above technical solution, the staff can adjust the positions of the two hanging platforms 3 by turning the two knobs 42 when necessary, thereby adjusting the overall height of the limit weight, which better meets the work needs in different situations.

[0041] Specifically, the height adjustment device 4 further includes a limit plate 44 , and the limit plate 44 is installed below the second screw rod 43 .

[0042] By adopting the above technical solution, the weight can limit the position of the second screw rod 43 to a certain extent, thereby preventing the second screw rod 43 from being separated from the outer frame 201, thereby ensuring the normal operation.

[0043] When this embodiment is in use, when it is necessary to adjust the overall height of the limit weight, the two knobs 42 in the height adjustment device 4 are rotated at the same time, thereby driving the two second screws 43 to rotate, and the second screws 43 are threadedly connected to the outer frame 201, so the two second screws 43 rotate and move, and the two second screws 43 are bearing-connected to the movable plate 45, so the movable plate 45 will not be affected by the rotation of the two second screws 43. When the movable plate 45 moves with the two second screws 43, the movable plate 45 drives the two hanging platforms 3 to move through the connecting block 41, thereby adjusting the overall height of the limit weight, and the limit plate 44 plays a role in limiting the second screw 43.

[0044] The structure and principle of the shell assembly 1 composed of a shell, a positioning groove and a counterweight block, the hanging platform 3, the swing door 5, and the connecting assembly 6 composed of a locking column, a locking shell, a locking block, a locking groove, a spring, a cover plate and a strip groove in the present invention have been disclosed in a limit weight of an anti-overwinding switch disclosed in Chinese patent application No. 202122046209.X. Its working principle is to adjust the overall weight of the limit weight by cooperating with the swing door and the shell, and the positioning groove and the counterweight block. At the same time, the locking assembly and the locking column can quickly drive the swing door and the shell to open and close quickly.

[0045] The first damper 206 and the second damper 210 in the present invention are the dampers of the reference case, and their structure and principle have been disclosed in a smart home washing machine shock absorbing device disclosed in Chinese Patent Application No. 201721446985.6. Its working principle consists of a piston and an oil tank, which is filled with oil. When an object moves, the piston moves in the oil, thereby consuming energy and slowing down the movement of the object.

[0046] The working principle and use process of the present invention are as follows: when the anti-over-rolling switch needs to use a heavy hammer, operate the connecting component 6 to open the swing door 5, adjust the weight of the shell component 1, and then operate the connecting component 6 to close the swing door 5, install the heavy hammer on the anti-over-rolling switch through the two hanging platforms 3, and then rotate the two rotating plates 203 in the buffer lighting device 2, so as to screw off the two first screws 204, so that the relative positions between the shell component 1, the outer frame 201 and the protective plate 205 lose their fixation, and the elastic rubber tube 209 and the second damper 210 between the shell component 1 and the outer frame 201, as well as the elastic rubber frame 202 and the first damper 206 between the outer frame 201 and the protective plate 205 can buffer the collision impact in all directions, thereby reducing the shell component 1 may be damaged. When necessary, the staff can start the lighting lamp 207 in the transparent shell 208 for auxiliary lighting; when it is necessary to adjust the overall height of the limit weight, the two knobs 42 in the height adjustment device 4 are turned at the same time, thereby driving the two second screws 43 to rotate. The second screws 43 are threadedly connected to the outer frame 201, so the two second screws 43 rotate and move. The two second screws 43 are bearing-connected to the moving plate 45, so the moving plate 45 will not be affected by the rotation of the two second screws 43. When the moving plate 45 moves with the two second screws 43, the moving plate 45 drives the two hanging platforms 3 to move through the connecting block 41, thereby adjusting the overall height of the limit weight, and the limiting plate 44 plays a role in limiting the second screws 43.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A limit weight for an overwinding prevention switch, comprising a housing assembly, characterized in that: A swing door is provided on one side of the shell assembly, and the shell assembly and the swing door are connected by a connecting assembly, two hanging platforms are provided above the shell assembly, and a buffer lighting device is provided on the outside of the shell assembly and below the two hanging platforms, and the two hanging platforms and the buffer lighting device are connected by a height adjustment device.

2. The limit weight of the anti-overwinding switch according to claim 1, characterized in that: The buffer lighting device includes an outer frame, an elastic rubber tube and a second damper. The outer frame is arranged on the outside of the shell assembly and below the two hanging platforms. Elastic rubber tubes are installed between the outer top surface of the shell assembly and the inner top surface of the outer frame and between the outer bottom surface of the shell assembly and the inner bottom surface of the outer frame. Second dampers are installed between the outer top surface of the shell assembly and the inner top surface of the outer frame and between the outer bottom surface of the shell assembly and the inner bottom surface of the outer frame and inside the elastic rubber tube.

3. The limit weight of the anti-overwinding switch according to claim 2, characterized in that: The buffer lighting device also includes an elastic rubber frame, a protective plate and a first damper. The elastic rubber frame is installed on both sides of the outer frame, the protective plate is installed on the side of the elastic rubber frame away from the outer frame, and two first dampers are installed between the protective plate and the outer frame and on the inner side of the elastic rubber frame.

4. The limit weight of the anti-overwinding switch according to claim 3, characterized in that: The buffer lighting device also includes a rotating plate and a first screw rod. The first screw rod is threadedly installed on the inner side of the protective plate and between the two first dampers. The rotating plate is installed on a side of the first screw rod away from the housing assembly.

5. The limit weight of the anti-overwinding switch according to claim 4, characterized in that: The buffer lighting device also includes lighting lamps, and a plurality of lighting lamps are installed on the protective plate and above the rotating plate.

6. The limit weight of the anti-overwinding switch according to claim 5, characterized in that: The buffer lighting device also includes a transparent shell, which is installed on the protective plate and located outside the plurality of lighting lamps.

7. The limit weight of the anti-overwinding switch according to claim 2, characterized in that: The height adjustment device includes a connecting block, a knob, a second screw and a movable plate. The movable plate is arranged between the two hanging platforms and the outer frame. The two hanging platforms and the movable plate are connected by a connecting block. Knobs are arranged on both sides of the connecting block. The second screw is installed on the side of the knob close to the movable plate.

8. The limit weight of the anti-overwinding switch according to claim 7, characterized in that: The height adjustment device also includes a limit plate, and the limit plate is installed below the second screw rod.

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