Crane protection device and crane equipment

Abstract

The embodiment of the utility model provides a crane protection device and crane equipment, the crane protection device comprises a crane main body, the crane main body is provided with a plurality of inlet and outlet chain ports, at least one inlet and outlet chain port is provided with a chain resistance detection plate, and the chain resistance detection plate surrounds the inlet and outlet chain port; and the microswitch is arranged on the inner side of the crane main body, the microswitch and the chain resistance detection plate are oppositely arranged, and when the pressure borne by the chain resistance detection plate is larger than a preset value, the chain resistance detection plate triggers the microswitch. According to the embodiment of the invention, the safety and reliability of crane operation are improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of crane technology, and specifically to a crane protection device and crane equipment. Background Art

[0002] With the wide application of cranes in industrial production, logistics and transportation, construction and other fields, their safety and reliability are directly related to operating efficiency, personnel safety and equipment maintenance costs. However, in the prior art, cranes often face some safety hazards during operation.

[0003] In this context, how to improve the safety and reliability of crane operations has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In view of this, an embodiment of the present application provides a crane protection device and a crane equipment to improve the safety and reliability of crane operations.

[0005] To achieve the above objectives, the embodiments of the present application provide the following technical solutions.

[0006] In a first aspect, an embodiment of the present application provides a crane protection device, comprising:

[0007] A crane body, wherein the crane body is provided with a plurality of chain inlet and outlet ports, wherein at least one chain inlet and outlet port is provided with a chain resistance detection plate, and the chain resistance detection plate surrounds the chain inlet and outlet port;

[0008] A micro switch is arranged on the inner side of the crane body, and the micro switch is arranged opposite to the chain resistance detection plate. When the pressure applied to the chain resistance detection plate is greater than a preset value, the chain resistance detection plate triggers the micro switch.

[0009] Optionally, also include:

[0010] A baffle fixedly arranged on the inner side of the crane body, the baffle being arranged opposite to the edge of the chain resistance detection plate and exposing the chain inlet and outlet; wherein the micro switch is arranged on the baffle;

[0011] The pressure spring disposed between the baffle plate and the chain resistance detection plate is used to provide a preset resistance for the chain resistance detection plate. When the pressure applied to the chain resistance detection plate is greater than the preset resistance, the chain resistance detection plate triggers the micro switch.

[0012] Optionally, a rotating shaft is provided on one side of the chain resistance detection plate, and when the chain resistance detection plate is pressed, the side of the chain resistance detection plate away from the rotating shaft rotates inwards;

[0013] The pressure spring is arranged on a side of the chain resistance detection plate away from the rotating shaft.

[0014] Optionally, it further includes: a chain block detection plate frame for fixing the chain block detection plate to the crane body.

[0015] Optionally, both ends of the rotating shaft are fixed to the inner side of the chain block detection plate frame.

[0016] Optionally, the crane body is provided with two chain inlet / outlet ports, namely a first chain inlet / outlet port and a second chain inlet / outlet port;

[0017] The first chain inlet / outlet port is located at the bottom surface of the crane body;

[0018] The second chain inlet / outlet port is located at the side surface of the crane body.

[0019] Optionally, it further includes:

[0020] A chain;

[0021] A rubber block surrounding one end of the chain;

[0022] Another rubber block surrounding the other end of the chain, and a chain hook located on the side of the rubber block close to the end of the chain;

[0023] Wherein, the outer diameter of the rubber block is greater than the outer diameter of the chain inlet / outlet port, so as to provide pressure for the chain block detection plate when the chain moves to the end; the chain hook is used to provide a suspension point.

[0024] Optionally, it further includes:

[0025] A driving gear set arranged in the crane body, and the driving gear set is used to drive the chain to move through the chain inlet / outlet port.

[0026] Optionally, it further includes:

[0027] A crane hook arranged on the top surface of the crane body, and the crane hook is used to provide a suspension point.

[0028] In a second aspect, an embodiment of the present application provides a crane device, including the crane protection device as described in the first aspect above.

[0029] Compared with the prior art, the technical solution of the embodiment of the present application has the following advantages:

[0030] The embodiment of the present application provides a crane protection device and a crane equipment. Among them, the crane protection device includes: a crane main body, the crane main body is provided with a plurality of chain inlet and outlet ports, and at least one of the chain inlet and outlet ports is provided with a chain resistance detection plate, and the chain resistance detection plate surrounds the chain inlet and outlet port; a micro switch arranged inside the crane main body, and the micro switch is arranged opposite to the chain resistance detection plate. When the pressure received by the chain resistance detection plate is greater than a preset value, the chain resistance detection plate touches the micro switch.

[0031] It can be seen that for the crane protection device provided by the embodiment of the present application, by arranging a chain resistance detection plate at at least one chain inlet and outlet port, the chain resistance detection plate surrounds the chain inlet and outlet port. Once the pressure received by the chain resistance detection plate is greater than a preset value, the chain resistance detection plate will touch the micro switch, so that the crane stops working, thereby avoiding the problem that the crane is damaged due to the inability to stop working in time, and significantly improving the safety and reliability of the crane operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0033] Figure 1 is a schematic structural diagram of the crane protection device provided by the embodiment of the present application;

[0034] Figure 2 is provided by the embodiment of the present application Figure 1 an enlarged schematic diagram of the second chain inlet and outlet port in;

[0035] Figure 3 is provided by the embodiment of the present application Figure 2 a schematic structural diagram after removing the chain resistance detection plate in.

[0036] In the drawings:

[0037] 1 - crane main body; 2 - chain resistance detection plate; 3 - second chain inlet and outlet port; 4 - chain; 41 - rubber block; 42 - chain hook; 5 - chain resistance detection plate frame; 6 - crane hook; 10 - micro switch; 11 - baffle; 12 - pressure spring; 13 - rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0039] As described in the background art, with the wide application of cranes in industrial production, logistics transportation, construction and other fields, their safety and reliability are directly related to operation efficiency, personnel safety and equipment maintenance costs. However, in the prior art, cranes often face some safety hazards during operation. In this context, how to improve the safety and reliability of crane operation has become a technical problem that needs to be solved urgently by those skilled in the art.

[0040] When the inventor deeply analyzed the safety problems during the operation of the crane, it was found that when the chain became knotted, these abnormal situations hindered the smooth flow of the chain, resulting in its inability to pass through the inlet and outlet chain ports normally. Existing cranes cannot respond in time when facing such sudden situations, resulting in the crane being unable to stop working in time, and ultimately causing damage to the crane, thus posing a major safety hazard to the operation of the crane.

[0041] In view of this, the embodiments of the present application provide a crane protection device and a crane equipment. Among them, the crane protection device includes: a crane main body, the crane main body is provided with a plurality of inlet and outlet chain ports, and at least one of the inlet and outlet chain ports is provided with a chain resistance detection plate, and the chain resistance detection plate surrounds the inlet and outlet chain port; a micro switch disposed inside the crane main body, and the micro switch is disposed opposite to the chain resistance detection plate. When the pressure received by the chain resistance detection plate is greater than a preset value, the chain resistance detection plate touches the micro switch.

[0042] It can be seen that the crane protection device provided by the embodiments of the present application, by providing a chain resistance detection plate at at least one inlet and outlet chain port, and the chain resistance detection plate surrounds the inlet and outlet chain port. Once the pressure received by the chain resistance detection plate is greater than a preset value, the chain resistance detection plate will touch the micro switch, so that the crane stops working, thereby avoiding the problem of crane damage caused by the crane being unable to stop working in time, and significantly improving the safety and reliability of crane operation.

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0044] It should be noted that in the embodiments of the present application, the side of the crane main body with the crane hook is defined as the top surface, the side opposite to the top surface of the crane main body is defined as the bottom surface, and the other surfaces except the top surface and the bottom surface are defined as the side surfaces for description.

[0045] Reference Figures 1 - 3 , Figure 1 is a schematic structural diagram of the crane protection device provided by the embodiments of the present application. Figure 2 is provided by the embodiments of the present application Figure 1 An enlarged schematic diagram of the second chain inlet / outlet in Figure 3 is provided by the embodiments of the present application Figure 2 A schematic structural diagram after removing the chain resistance detection board in Figures 1 - 3 As shown in

[0046] The crane main body 1 is provided with a plurality of chain inlet / outlets, and at least one of the chain inlet / outlets is provided with a chain resistance detection board 2, and the chain resistance detection board surrounds the chain inlet / outlet.

[0047] The chain inlet / outlet refers to an opening specially designed on the crane main body for the chain to enter and leave the crane main body. It allows the chain to be smoothly transmitted between the inside and outside of the crane, so as to realize the lifting, lowering or translation of heavy objects.

[0048] In an optional implementation, the crane main body may be provided with 2 chain inlet / outlets, which are respectively a first chain inlet / outlet (not shown in the figure) and a second chain inlet / outlet 3; the first chain inlet / outlet is located on the bottom surface of the crane main body; the second chain inlet / outlet 3 is located on the side surface of the crane main body. Among them, the number of chain inlet / outlets can be set according to actual situations, and the embodiments of the present application do not limit this.

[0049] It should be noted that in different application scenarios, the chain resistance detection board can be selectively installed according to factors such as the specific configuration of the crane, the working environment, and safety requirements. For example, in occasions where high reliability and safety are required, the chain resistance detection board can be installed at all chain inlet / outlets; while in some relatively simple application scenarios, the chain resistance detection board can be installed at some chain inlet / outlets. The chain resistance detection board can be set according to actual needs, and the embodiments of the present application do not limit this.

[0050] A micro switch 10 is arranged inside the crane main body 1, and the micro switch 10 is arranged opposite to the chain resistance detection board 2. When the pressure received by the chain resistance detection board 2 is greater than a preset value, the chain resistance detection board 2 touches the micro switch 10.

[0051] The microswitch is a small mechanical switch that controls the on / off of a circuit through a tiny mechanical movement. In the crane protection device, the microswitch is used as a key component for safety protection. When the pressure received by the chain resistance detection plate is greater than the preset value, the microswitch will be triggered, thereby activating the corresponding protection mechanism to prevent the crane from continuing to operate under abnormal chain conditions, thus protecting the safety of the crane and the operator.

[0052] It can be seen that for the crane protection device provided by the embodiments of the present application, by arranging a chain resistance detection plate at at least one chain inlet and outlet, the chain resistance detection plate surrounds the chain inlet and outlet. Once the pressure received by the chain resistance detection plate is greater than the preset value, the chain resistance detection plate will trigger the microswitch, thereby stopping the crane from working, and further avoiding the problem of crane damage caused by the crane being unable to stop working in time, significantly improving the safety and reliability of crane operation.

[0053] Reference Figure 1 , in an optional implementation, the crane protection device may further include: a chain 4; a rubber block 41 surrounding one end of the chain 4; another rubber block 41 surrounding the other end of the chain, and a chain hook 42 located on the side of the rubber block close to the end of the chain; wherein, the outer diameter of the rubber block is greater than the outer diameter of the chain inlet and outlet to provide pressure for the chain resistance detection plate when the chain moves to the end; the chain hook is used to provide a hanging point.

[0054] When the chain runs to the end, the rubber block will squeeze the chain resistance detection plate, so that when the pressure received by the chain resistance detection plate 2 is greater than the preset value, the chain resistance detection plate triggers the microswitch to stop the crane from working. During crane operation, the chain hook 42 will be connected to the heavy object to be lifted, so that the weight of the heavy object is transmitted to the crane through the chain. In this way, the crane can lift, move or lower the heavy object by lifting or moving the chain.

[0055] The chain resistance detection plate triggers the microswitch to stop the crane from working. For example, when the microswitch is triggered, the microswitch will transmit a signal to the control board, and then the control board will send a signal to cut off the power supply of the motor to stop working.

[0056] Reference Figures 1 - 2 , in an optional implementation, the crane protection device may further include: a chain resistance detection plate frame 5, and the chain resistance detection plate frame 5 is used to fix the chain resistance detection plate 2 to the crane body 1. In a specific implementation, the chain resistance detection plate frame 5 can be made of strong and durable materials, such as metals or alloys. These materials not only have high strength and stiffness, but also can resist corrosion and wear, thereby extending the service life of the chain resistance detection plate.

[0057] Reference Figure 1, in an alternative implementation, the crane protection device may further include: a crane hook 6 disposed on the top surface of the crane body 1, and the crane hook 6 is used to provide a suspension point. When hoisting a heavy object is required, the crane hook can be hung at a preset position to facilitate the hoisting of the heavy object.

[0058] In an alternative implementation, the crane protection device may further include: a driving gear set (not shown in the figure) disposed in the crane body 1, and the driving gear set is used to drive the chain 4 to move through the chain inlet / outlet.

[0059] Reference Figure 3 , in a specific implementation, the crane protection device may further include: a baffle 11 fixedly disposed inside the crane body 1, the baffle 11 is disposed opposite to the edge of the chain resistance detection plate 2 and exposes the chain inlet / outlet; wherein, the microswitch 10 is disposed on the baffle 11; a compression spring 12 disposed between the baffle 11 and the chain resistance detection plate 2 is used to provide a preset resistance for the chain resistance detection plate 2, and when the pressure received by the chain resistance detection plate 2 is greater than the preset resistance, the chain resistance detection plate 2 touches the microswitch 10.

[0060] The compression spring refers to a mechanical part that works by using compression to generate elasticity. It is made of an elastic material, usually spring steel or other materials with good elasticity. Under the action of an external force, the compression spring will undergo compression deformation, and when the external force is removed, it can quickly return to its original state. In the crane protection device, the compression spring is used in combination with the chain resistance detection plate. When the chain passes smoothly, the compression force of the chain resistance detection plate on the compression spring is small and does not touch the microswitch. However, when the chain has an abnormality, the pressure received by the chain resistance detection plate increases, thereby compressing the compression spring. When the pressure exceeds the preset value, the microswitch will be touched, thereby triggering the corresponding protection mechanism.

[0061] It can be understood that the chain resistance detection plate will move downward under the thrust of the knotted chain, thereby compressing the compression spring until the pressure received by the chain resistance detection plate is greater than the preset value, and the chain resistance detection plate will touch the microswitch. After the microswitch is touched, the microswitch will transmit a signal to the control board, and then the control board will send a signal to cut off the power supply of the motor and stop working.

[0062] It can be seen that the crane protection device provided by the embodiment of the present application, by setting a chain resistance detection plate at at least one chain inlet / outlet, the chain resistance detection plate surrounds the chain inlet / outlet. Once the pressure received by the chain resistance detection plate is greater than the preset value, the chain resistance detection plate will touch the microswitch, thereby stopping the crane from working, and further avoiding the problem that the crane cannot stop working in time and causing damage to the crane, significantly improving the safety and reliability of the crane operation.

[0063] Combination Figure 2 ,refer to Figure 3 In a specific implementation, a rotating shaft 13 is provided on one side of the chain resistance detection plate 2. When the chain resistance detection plate 2 is pressed, the side of the chain resistance detection plate 2 away from the rotating shaft 13 rotates inward; the pressure spring 12 is provided on the side of the chain resistance detection plate 2 away from the rotating shaft 13. In an optional implementation, both ends of the rotating shaft 13 are fixed on the inner side of the chain resistance detection plate frame 5.

[0064] When the chain resistance detection plate 2 is under pressure, the chain resistance detection plate 2 rotates inward away from the side of the rotating shaft 13. Once the pressure applied to the chain resistance detection plate is greater than a preset value, the chain resistance detection plate will trigger a micro switch, thereby stopping the crane from working, thereby avoiding the problem of damage to the crane due to the inability to stop working in time, and significantly improving the safety and reliability of the crane operation.

[0065] An embodiment of the present application also provides a crane device, which includes the crane protection device as described above.

[0066] The above describes multiple implementation schemes provided by the embodiments of the present application. The various optional methods introduced in each implementation scheme can be combined and cross-referenced with each other without conflict, thereby extending a variety of possible implementation schemes, which can all be considered as implementation schemes disclosed and open in the embodiments of the present application.

[0067] Although the embodiments of the present application are disclosed above, the present application is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be subject to the scope defined by the claims.

Claims

1. A crane protection device, characterized in that: include: A crane body, wherein the crane body is provided with a plurality of chain inlet and outlet ports, wherein at least one chain inlet and outlet port is provided with a chain resistance detection plate, and the chain resistance detection plate surrounds the chain inlet and outlet port; A micro switch is arranged on the inner side of the crane body, and the micro switch is arranged opposite to the chain resistance detection plate. When the pressure applied to the chain resistance detection plate is greater than a preset value, the chain resistance detection plate triggers the micro switch.

2. The crane protection device according to claim 1, characterized in that: Also includes: A baffle fixedly arranged on the inner side of the crane body, the baffle being arranged opposite to the edge of the chain resistance detection plate and exposing the chain inlet and outlet; wherein the micro switch is arranged on the baffle; The pressure spring disposed between the baffle plate and the chain resistance detection plate is used to provide a preset resistance for the chain resistance detection plate. When the pressure applied to the chain resistance detection plate is greater than the preset resistance, the chain resistance detection plate triggers the micro switch.

3. The crane protection device according to claim 2, characterized in that: A rotating shaft is provided on one side of the chain resistance detection plate, and when the chain resistance detection plate is pressed, the side of the chain resistance detection plate away from the rotating shaft rotates inward; The pressure spring is arranged on a side of the chain resistance detection plate away from the rotating shaft.

4. The crane protection device according to claim 3, characterized in that: Also includes: A chain resistance detection plate frame, wherein the chain resistance detection plate frame is used to fix the chain resistance detection plate to the crane body.

5. The crane protection device according to claim 4, characterized in that: Both ends of the rotating shaft are fixed on the inner side of the chain resistance detection plate frame.

6. The crane protection device according to claim 1, characterized in that: The crane body is provided with two chain inlet and outlet ports, which are respectively a first chain inlet and outlet port and a second chain inlet and outlet port; The first chain inlet and outlet is located on the bottom surface of the crane body; The second chain inlet and outlet is located on the side of the crane body.

7. The crane protection device according to claim 1, characterized in that: Also includes: Chain; a rubber block surrounding one end of the chain; Another rubber block surrounding the other end of the chain, and a chain hook located on the side of the rubber block close to the end of the chain; The outer diameter of the rubber block is larger than the outer diameter of the chain inlet and outlet, so as to provide pressure for the chain resistance detection plate when the chain moves to the end; and the chain hook is used to provide a hanging point.

8. The crane protection device according to claim 1, characterized in that: Also includes: A driving gear set is arranged in the crane body, and the driving gear set is used to drive the chain to move through the chain inlet and outlet.

9. The crane protection device according to claim 1, characterized in that: Also includes: A crane hook is arranged on the top surface of the crane body, and the crane hook is used to provide a hanging point.

10. A crane device, characterized in that: It comprises a crane protection device as described in any one of claims 1 to 9.

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