Hoisting equipment self-checking module

Abstract

The utility model discloses a hoisting equipment self-checking module which comprises a detachable shell, the detachable shell comprises an outer shell and a shell cover, and the shell cover is installed on the top of the outer shell through a first countersunk head screw; the telescopic assembly is installed in the shell and comprises a first U-shaped frame, a first positioning block, a second positioning block, a sliding block, a second U-shaped frame and a first bolt, the first U-shaped frame is fixedly installed in the shell, the first positioning block and the second positioning block are both fixedly installed above the first U-shaped frame, the sliding block is fixedly installed above the second U-shaped frame, and the second U-shaped frame is fixedly installed above the first bolt. The end of the first bolt penetrates through the sliding block to be screwed into the side face of the first positioning block. And the rotating assembly is rotationally connected with the second U-shaped frame, and the rotating assembly comprises a rotating rod, an L-shaped seat, a fan, a first air outlet head, a second air outlet head, a plug, a second bolt and an auxiliary block. And when an internal circuit fails, the failed circuit can be conveniently maintained or replaced.

Description

Technical Field

[0001] This utility model relates to the field of self-testing modules, specifically to a self-testing module for lifting equipment. Background Technology

[0002] With the rapid development of industry, lifting equipment such as electric hoists, overhead cranes, and gantry cranes are being used more and more widely. To improve the safety of lifting equipment during operation, devices are used to perform safety self-checks on its electrical control components. For example, Chinese Patent 200920097819.9 discloses a dedicated safety monitoring device for lifting equipment, including a housing and a circuit installed inside the housing. This circuit consists of a CPU, a data acquisition module, a drive module, a relay switch, and a regulated power supply module. The CPU is connected to the output port of the data acquisition module via an I / O port, and the CPU is connected to the input port of the drive module via an output port. The output port of the drive module is connected to the relay switch, and the CPU's power input port is connected to the output port of the regulated power supply module. This device has the following advantages: it can effectively monitor the operating status of the lifting equipment, improve the safety of the lifting equipment operation, reduce maintenance costs, and increase the service life of the lifting equipment. It is a highly reliable dedicated safety monitoring device for lifting equipment.

[0003] However, the patent still has the following drawbacks: since there is no component that can be easily separated between the housing and the circuit, and the housing does not have a detachable structure, it is difficult to repair or replace the internal circuit when it fails. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a self-test module for lifting equipment, which facilitates the repair or replacement of faulty circuits when internal circuits malfunction.

[0005] According to the technical solution provided by the present utility model embodiment, a self-testing module for lifting equipment includes a detachable housing. The detachable housing includes an outer shell and a cover. The cover is installed on the top of the outer shell by a first countersunk screw. The surface of the cover is provided with an air outlet and a countersunk hole that matches the first countersunk screw.

[0006] A telescopic assembly is installed inside the housing. The telescopic assembly includes a first U-shaped frame, a first positioning block, a second positioning block, a slider, a second U-shaped frame, and a first bolt. The first U-shaped frame is fixedly installed inside the housing. The first positioning block and the second positioning block are both fixedly installed above the first U-shaped frame. The slider is fixedly installed above the second U-shaped frame. The end of the first bolt passes through the slider and screws into the side of the first positioning block. The second U-shaped frame slides in contact with the first U-shaped frame. The top of the first U-shaped frame is provided with a sliding opening. The slider passes through the sliding opening. The side of the slider is provided with a first through hole. The sides of the first positioning block and the second positioning block are both provided with a first threaded groove that matches the first bolt.

[0007] A rotating assembly, rotatably connected to the second U-shaped frame, includes a rotating rod, an L-shaped base, a fan, a first air outlet, a second air outlet, a plug, a second bolt, and an auxiliary block. The rotating rod is rotatably connected to the second U-shaped frame via a pin. The L-shaped base includes a base body and a cover plate. The cover plate is fixedly connected to the rotating rod. The fan is mounted on the side of the cover plate with screws. The first air outlet, the second air outlet, and the plug are fixedly connected to the base body. The end of the second bolt passes through the second U-shaped frame and screws into the side of the rotating rod. The cover plate is installed on the side of the base body by a second countersunk screw. Both the cover plate and the side of the outer shell are provided with air inlets corresponding to the fan. The first air outlet is located on the left and right sides of the circuit, and the second air outlet is located above the circuit. The auxiliary block is fixedly connected to the side of the second U-shaped frame. Both the side of the second U-shaped frame and the auxiliary block are provided with second through holes. The side of the rotating rod is provided with a second threaded groove that matches the second bolt. There are two second threaded grooves, which are located on the left and right sides of the pin.

[0008] The fixing blocks are respectively fixedly installed on the left and right sides of the circuit. The side of the fixing block is provided with a slot that matches the plug, and the plug is inserted into the slot.

[0009] A dust removal assembly is installed on the left and right sides of the housing. The dust removal assembly includes a filter screen, a connecting frame, an electric push rod, a right-angle bracket, and a brush. The filter screen is installed on the left and right sides of the housing by a third countersunk screw, and the filter screen covers the air inlet of the housing. The connecting frame is fixedly installed on the left and right sides of the housing. One end of the electric push rod is fixedly connected to the connecting frame, and the other end of the electric push rod is fixedly connected to the right-angle bracket. The brush is installed on the side of the right-angle bracket by a fourth countersunk screw, and the brush bristles are in contact with the filter screen. The filter screen has a flat structure.

[0010] In summary, the beneficial effects of this utility model are as follows:

[0011] 1. The design with a detachable shell, telescopic components, and rotating components facilitates the repair or replacement of faulty circuits when they malfunction.

[0012] 2. The arrangement of the rotating component fan, the first air outlet, and the second air outlet can also blow air onto the circuit, which is beneficial for the heat dissipation of the circuit. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the second U-shaped frame, rotating rod, rotating assembly, fixing block, and circuit connection of this utility model;

[0016] Figure 3 This is a top view of the connection between the telescopic component, rotating rod, second bolt, and auxiliary block of this utility model.

[0017] Figure 4 This is a schematic diagram of the connection between the outer shell and the dust removal component of this utility model;

[0018] Figure 5 This is a top view of the shell cover of this utility model;

[0019] Figure 6 This is a top view of the connection between the circuit and the fixing block of this utility model.

[0020] The diagram is labeled as follows: 2. Circuit; 11. Outer casing; 12. Shell cover; 13. First U-shaped frame; 14. First positioning block; 15. Second positioning block; 16. Slider; 17. Second U-shaped frame; 18. First bolt; 19. Rotating rod; 20. L-shaped seat; 21. Fan; 22. First air outlet; 23. Second air outlet; 24. Plug; 25. Second bolt; 26. Auxiliary block; 27. Fixing block; 28. Filter screen; 29. ​​Connecting frame; 30. Electric push rod; 31. Right angle frame; 32. Brush. Detailed Implementation

[0021] The present invention will now be described in further detail 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 not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A self-testing module for lifting equipment includes a detachable housing, the detachable housing comprising an outer shell 11 and a cover 12, the cover 12 being mounted on the top of the outer shell 11 by a first countersunk screw; a telescopic assembly, the telescopic assembly being mounted inside the outer shell 11, the telescopic assembly comprising a first U-shaped frame 13, a first positioning block 14, a second positioning block 15, a slider 16, a second U-shaped frame 17, and a first bolt 18, the first U-shaped frame 13 being fixedly mounted inside the outer shell 11, the first positioning block 14 and the second positioning block 15 being fixedly mounted above the first U-shaped frame 13, the slider 16 being fixedly mounted above the second U-shaped frame 17, and the end of the first bolt 18 passing through the slider 16 and screwed into the side of the first positioning block 14; and a rotating assembly, the rotating assembly being connected to the first U-shaped frame 11. The two U-shaped frames 17 are rotatably connected. The rotating assembly includes a rotating rod 19, an L-shaped seat 20, a fan 21, a first air outlet 22, a second air outlet 23, a plug 24, a second bolt 25, and an auxiliary block 26. The rotating rod 19 is rotatably connected to the second U-shaped frame 17 via a pin. The L-shaped seat 20 includes a seat body and a cover plate. The cover plate is fixedly connected to the rotating rod 19. The fan 21 is mounted on the side of the cover plate with screws. The first air outlet 22, the second air outlet 23, and the plug 24 are fixedly connected to the seat body. The end of the second bolt 25 passes through the second U-shaped frame 17 and is screwed into the side of the rotating rod 19. A fixing block 27 is fixedly installed on the left and right sides of the circuit 2. A dust removal assembly is installed on the left and right sides of the outer casing 11.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the surface of the cover 12 is provided with an air outlet for convenient airflow. The surface of the cover 12 is also provided with a countersunk hole that matches the first countersunk screw, facilitating its installation. The second U-shaped bracket 17 slides in contact with the first U-shaped bracket 13. A control switch is installed above the cover 12. The fan 21 and the electric push rod 30 are electrically connected to the control switch for convenient control. The top of the first U-shaped bracket 13 has a sliding opening, and the slider 16 slides in contact with this opening, passing through it. The side of the slider 16 has a first through hole. The sides of both the first positioning block 14 and the second positioning block 15 have first threaded grooves that mate with the first bolt 18, facilitating its installation.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the cover plate is installed on the side of the base body by a second countersunk screw. Both the cover plate and the outer casing 11 have air inlets corresponding to the fan 21 on their sides. The base body has an internal ventilation cavity. The side of the base body has a first connecting hole corresponding to the first air outlet 22. The first air outlet 22 is located on the left and right sides of the circuit 2, respectively. The second air outlet 23 is located above the circuit 2. The side of the base body has a second connecting hole corresponding to the second air outlet 23. The side of the fixing block 27 has a slot matching the plug 24, facilitating the insertion of the plug 24. The plug 24 is inserted into the slot. The auxiliary block 26 is fixedly connected to the side of the second U-shaped frame 17. Both the second U-shaped frame 17 and the auxiliary block 26 have second through holes on their sides. The side of the rotating rod 19 has a second threaded groove that matches the second bolt 25. There are two second threaded grooves, located on the left and right sides of the pin shaft, facilitating the installation of the second bolt 25.

[0026] like Figure 1 and Figure 4As shown, the dust removal assembly includes a filter screen 28, a connecting frame 29, an electric push rod 30, a right-angle bracket 31, and a brush 32. The filter screen 28 is installed on the left and right sides of the outer casing 11 respectively using third countersunk screws. The filter screen 28 covers the air inlet of the outer casing 11, preventing dust from entering the interior of the outer casing 11 through the air inlet. The connecting frame 29 is fixedly installed on the left and right sides of the outer casing 11 respectively. One end of the electric push rod 30 is fixedly connected to the connecting frame 29, and the other end of the electric push rod 30 is fixedly connected to the right-angle bracket 31. The brush 32 is installed on the side of the right-angle bracket 31 using fourth countersunk screws. The bristles of the brush 32 contact the filter screen 28, allowing the brush 32 to clean the dust on the filter screen 28. The filter screen 28 has a flat structure.

[0027] It should be noted that circuit 2 in this product consists of a CPU, a data acquisition module, a drive module, a relay switch, and a voltage regulator module. The above components are derived from existing technology, and their specific structure and working principle can be referred to the Chinese utility model patent disclosed in patent application number: 200920097819.9.

[0028] In use: First, electrically connect Circuit 2 of this product to the electrical control box of the lifting equipment. The three-phase input voltage sensor of the data acquisition module of Circuit 2 acquires the U, V, W voltage signals output from the lower port of the main contactor of the lifting equipment electrical control box; the hoisting motor current sensor acquires the two current signals U and V of the hoisting motor; the left and right running motor current sensor acquires one current signal of the left and right running motors; the front and rear running motor current sensor acquires one current signal of the front and rear running motors; the temperature sensor acquires the internal temperature of the hoisting motor; the running direction signal sensor acquires the control signal of the running direction of the lifting equipment inside the lifting equipment electrical control box; the hoisting motor speed sensor acquires the speed signal of the hoisting motor; the crane drum speed sensor acquires the speed signal of the crane drum. After the above signals are acquired, they are transmitted to the AD sampling port in the CPU input port at a voltage of 0~5V. After processing by the CPU, the corresponding signals are output to the drive module and the alarm module through the CPU I / O port. The drive module will drive the corresponding relay switch to control the lifting equipment electrical control box, and the alarm module will control the corresponding audible and visual alarm. When an alarm sounds and the internal circuit 2 malfunctions, first remove the first countersunk screw to separate the cover 12 and the outer casing 11. Then remove the first bolt 18 of the telescopic assembly and slide the second U-shaped bracket 17 so that the end of the first bolt 18 passes through the slider 16 and screws into the side of the second positioning block 15. At this time, the plug 24 of the rotating assembly will move out of the slot of the fixing block 27. Then remove the second bolt 25, rotate the rotating rod 19, and screw the end of the second bolt 25 through the auxiliary block 26 into the side of the rotating rod 19. The L-shaped seat 20 will be completely misaligned with the circuit 2. Circuit 2 can then be removed, making it easier to repair or replace faulty circuit 2. At the same time, while circuit 2 is working, the fan 21 is started. The air blown by the fan 21 will be blown towards circuit 2 through the first air outlet 22 and the second air outlet 23, which is also beneficial to the heat dissipation of circuit 2. While the fan 21 is working, the filter screen 28 of the dust removal component can prevent dust from entering the interior of the housing 11. At the same time, the electric push rod 30 is started, which can drive the right angle bracket 31 and brush 32 to move up and down to clean the dust on the filter screen 28, thereby maintaining the filtration effect of the filter screen 28.

[0029] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles and solutions employed. Furthermore, the scope of this invention is not limited to the specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. A self-test module for lifting equipment, characterized in that: It includes a detachable housing, which includes an outer shell (11) and a cover (12), the cover (12) being mounted on top of the outer shell (11) by a first countersunk screw; A telescopic assembly is installed inside the housing (11). The telescopic assembly includes a first U-shaped frame (13), a first positioning block (14), a second positioning block (15), a slider (16), a second U-shaped frame (17), and a first bolt (18). The first U-shaped frame (13) is fixedly installed inside the housing (11). The first positioning block (14) and the second positioning block (15) are both fixedly installed above the first U-shaped frame (13). The slider (16) is fixedly installed above the second U-shaped frame (17). The end of the first bolt (18) passes through the slider (16) and is screwed into the side of the first positioning block (14). A rotating assembly is rotatably connected to the second U-shaped frame (17). The rotating assembly includes a rotating rod (19), an L-shaped seat (20), a fan (21), a first air outlet (22), a second air outlet (23), a plug (24), a second bolt (25), and an auxiliary block (26). The rotating rod (19) is rotatably connected to the second U-shaped frame (17) via a pin. The L-shaped seat (20) includes a seat body and a cover plate. The cover plate is fixedly connected to the rotating rod (19). The fan (21) is installed on the side of the cover plate by screws. The first air outlet (22), the second air outlet (23), and the plug (24) are fixedly connected to the seat body. The end of the second bolt (25) passes through the second U-shaped frame (17) and is screwed into the side of the rotating rod (19). Fixing blocks (27) are fixedly installed on the left and right sides of the circuit (2); Dust removal components are respectively installed on the left and right sides of the outer casing (11).

2. The self-test module for lifting equipment according to claim 1, characterized in that: The surface of the cover (12) is provided with an air outlet, and the surface of the cover (12) is provided with a countersunk hole that matches the first countersunk screw. The second U-shaped bracket (17) slides in contact with the first U-shaped bracket (13).

3. The self-test module for lifting equipment according to claim 1, characterized in that: The top of the first U-shaped frame (13) is provided with a sliding opening, the slider (16) passes through the sliding opening, the side of the slider (16) is provided with a first through hole, and the sides of the first positioning block (14) and the second positioning block (15) are both provided with a first threaded groove that matches the first bolt (18).

4. The self-test module for lifting equipment according to claim 1, characterized in that: The cover plate is installed on the side of the base body by a second countersunk screw. Both the cover plate and the side of the outer shell (11) are provided with air inlets corresponding to the fan (21). The first air outlet (22) is located on the left and right sides of the circuit (2), and the second air outlet (23) is located above the circuit (2).

5. A self-test module for lifting equipment according to claim 1, characterized in that: The side of the fixing block (27) is provided with a slot that matches the plug (24). The plug (24) is inserted into the slot. The auxiliary block (26) is fixedly connected to the side of the second U-shaped frame (17). The side of the second U-shaped frame (17) and the auxiliary block (26) are both provided with a second through hole. The side of the rotating rod (19) is provided with a second threaded groove that matches the second bolt (25). There are two second threaded grooves, which are located on the left and right sides of the pin respectively.

6. A self-test module for lifting equipment according to claim 4, characterized in that: The dust removal assembly includes a filter screen (28), a connecting frame (29), an electric push rod (30), a right-angle bracket (31), and a brush (32). The filter screen (28) is installed on the left and right sides of the housing (11) respectively by a third countersunk screw. The filter screen (28) covers the air inlet of the housing (11). The connecting frame (29) is fixedly installed on the left and right sides of the housing (11).

7. A self-test module for lifting equipment according to claim 6, characterized in that: One end of the electric push rod (30) is fixedly connected to the connecting frame (29), and the other end of the electric push rod (30) is fixedly connected to the right angle frame (31). The brush (32) is installed on the side of the right angle frame (31) by a fourth countersunk screw. The bristles of the brush (32) are in contact with the filter screen (28), and the filter screen (28) has a flat structure.

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