Crane signal transmission terminal

Abstract

The utility model relates to a crane signal transmission terminal which comprises a signal receiver, the signal receiver comprises a receiver body, a main cable arranged on the receiver body and a plurality of electric wires penetrating out of the main cable, and the signal transmission terminal further comprises a fixing mechanism used for fixedly connecting the main cable into a wire inlet hole of a crane control box. Due to the adoption of the technical scheme, after the crane signal transmission terminal disclosed by the utility model is arranged on a control box, the possibility that the wiring position of the wire of the signal receiver and the control box is loosened can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of signal transmission equipment technology, specifically to a crane signal transmission terminal. Background Technology

[0002] Cranes are important tools and equipment for improving production efficiency in industrial, transportation, and construction enterprises. There are many types of cranes available today, including truck cranes, tower cranes, and gantry cranes.

[0003] With the development of crane technology, crane remote control technology has become relatively mature. The principle of crane remote control is to control the crane's movements by transmitting and receiving wireless signals, allowing operators to remotely perform high-altitude operations from a comfortable location. The transmission and reception of wireless signals requires signal transmission terminal equipment, and the signal receiver installed on the crane's control box is a common type of signal transmission terminal equipment used for receiving signals.

[0004] When installing a signal receiver on a control box, to ensure better reception of remote control signals, the receiver is typically positioned outside the control box. The main cable and wires of the receiver are then threaded into the control box through the inlet hole on the bottom plate. However, existing signal receivers lack a dedicated structure for securing the main cable to the control box. During use, the portion of the main cable outside the control box may be pulled, potentially causing the wiring between the receiver and the control box to loosen. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a crane signal transmission terminal to solve the technical problem that the main cable of the existing signal receiver located outside the control box may be pulled, which may easily cause the wiring of the signal receiver to become loose from the connection point of the control box.

[0006] This utility model is achieved through the following technical solution:

[0007] A crane signal transmission terminal includes a signal receiver, the signal receiver including a receiver body, a main cable disposed on the receiver body and multiple wires extending from the main cable, and a fixing mechanism for fixing the main cable to the inlet hole of the crane control box.

[0008] Furthermore, the fixing mechanism includes a first fixing part for fixing to the bottom plate of the control box at a position corresponding to the inlet hole of the control box, and a second fixing part for fixing the main cable to the first fixing part.

[0009] Furthermore, the first fixing part includes a ring, a round tube, and a nut. One end of the round tube is fixedly connected to the ring and is coaxial with the ring. An external thread is formed on the outer circumferential surface of the round tube, and the nut is threadedly connected to the round tube.

[0010] Furthermore, a first screw hole is formed on the circular tube; the second fixing part includes a first bolt, which is screwed into the first screw hole, and the screw-in end of the first bolt is used to hold the main cable.

[0011] Furthermore, the first fixing part includes a ring, a round tube, and a nut. The round tube is disposed inside the ring in a manner that allows it to move along the axis of the ring. An external thread is formed on the outer circumferential surface of the round tube, and the nut is threaded onto the round tube. The second fixing part is also used to fix the round tube inside the ring.

[0012] Furthermore, the circular tube has multiple through holes, which are evenly spaced along the circumference of the circular tube.

[0013] The inner circumferential surface of the ring at the end away from the nut is recessed to form multiple grooves. The multiple grooves are evenly spaced along the circumferential direction. Each of the multiple grooves corresponds to a multiple of the through holes. The grooves penetrate the end face of the ring opposite to the nut. The bottom wall of the groove slopes towards the middle of the ring from the end away from the nut to the end closer to the nut.

[0014] The second fixing part includes a plurality of sliding blocks, which are located in a plurality of through holes in a corresponding manner. The sliding blocks cooperate with the through holes. The inner end face of the sliding block is used to abut against the main cable, and the outer end of the sliding block is used to abut against the bottom wall of the corresponding groove.

[0015] Furthermore, it also includes a connecting part for fixing the receiver body to the nut so that the receiver body cannot swing relative to the control box.

[0016] Furthermore, the connecting part includes a fixing plate, two connecting plates, and two abutting components. The fixing plate is fixedly connected to the nut. Both connecting plates are fixed on the fixing plate and are parallel to each other. The two abutting components are respectively disposed on the two connecting plates and are used to abut against the receiver body in opposite directions.

[0017] Furthermore, a second screw hole is formed on the connecting plate; the supporting assembly includes a second bolt and a rotating plate, the rotating plate being rotatably connected to the screw-in end of the second bolt, and the rotating plate being located between the two connecting plates.

[0018] Furthermore, the screw-in end of the second bolt has an inwardly recessed circular slot, and the circumferential surface of the slot has an annular limiting groove. A plug rod is rotatably fitted inside the slot, and the outer circumferential surface of the plug rod protrudes outward to form a limiting ring. The limiting ring is located inside the limiting groove and cooperates with the limiting groove. The rotating plate is fixedly connected to the plug rod.

[0019] The beneficial effects of this utility model are as follows:

[0020] After the crane signal transmission terminal of this utility model is installed on the control box, the main cable is fixedly connected to the inlet hole of the crane control box, which can reduce the possibility of the signal receiver wire being pulled and the connection position of the control box being loosened.

[0021] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a preferred embodiment of the crane signal transmission terminal of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of 'a' in the middle;

[0024] Figure 3 This is a schematic diagram of a supporting component in a preferred embodiment of the crane signal transmission terminal of this utility model.

[0025] Figure 4 This is a front view of a supporting component in a preferred embodiment of the crane signal transmission terminal of this utility model.

[0026] Figure 5 for Figure 4 AA section view;

[0027] Figure 6 This is a schematic diagram of another preferred embodiment of the crane signal transmission terminal of this utility model;

[0028] Figure 7 This is a structural diagram of the fixing mechanism of the crane signal transmission terminal of this utility model when the nut is omitted;

[0029] Figure 8 This is a front view of the fixing mechanism of the crane signal transmission terminal of this utility model when the nut is omitted;

[0030] Figure 9 for Figure 8 BB cross-sectional view;

[0031] Figure 10 for Figure 9 A magnified view of b in the middle.

[0032] In the diagram: receiver body-1; main cable-2; wire-3; ring-4; round tube-5; nut-6; first bolt-7; fixing plate-8; connecting plate-9; second bolt-10; rotating plate-11; insertion rod-12; limiting ring-13; through hole-14; groove-15; sliding block-16. Detailed Implementation

[0033] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0038] Example 1

[0039] Please see Figure 1-5 This utility model provides a technical solution: a crane signal transmission terminal, including a signal receiver. The signal receiver can be a signal receiver of model F21-E1B. The signal receiver includes a receiver body 1, a main cable 2 disposed on the receiver body 1, and multiple wires 3 passing through the main cable 2. Specifically, there are eleven wires. It also includes a fixing mechanism for fixing the main cable 2 to the inlet hole of the crane control box.

[0040] When installing the crane signal transmission terminal of this utility model on the control box, a portion of the main cable 2 and multiple wires 3 are passed through an inlet hole in the control box and then the signal receiver can be wired to the crane control box. As for the wiring position and method between the signal receiver and the crane control box, these are mature existing technologies, so the wiring position and method between the signal receiver and the crane control box will not be described in detail here.

[0041] After completing the wiring between the signal receiver and the crane control box, the main cable 2 is fixedly connected to the inlet hole of the crane control box using the fixing mechanism. Then, the signal receiver can receive remote control signals; that is, the crane signal transmission terminal of this invention can receive remote control signals. The signal receiver is mature existing technology, therefore its specific structure and the specific principle of receiving remote control signals will not be described in detail here.

[0042] After the crane signal transmission terminal of this utility model is installed on the control box, the main cable 2 is fixedly connected to the inlet hole of the crane control box, which can reduce the possibility that the wiring position of the signal receiver wire 3 and the control box is pulled, and reduce the possibility that the wiring position of the signal receiver wire 3 and the control box is loosened.

[0043] In this embodiment, the fixing mechanism includes a first fixing part for fixing to the bottom plate of the control box at a position corresponding to the inlet hole of the control box, and a second fixing part for fixing the main cable 2 to the first fixing part.

[0044] After completing the wiring between the signal receiver and the crane control box, the first fixing part is fixed on the bottom plate of the control box at the position corresponding to the inlet hole of the control box, and the main cable 2 is fixed on the first fixing part through the second fixing part. At this time, the main cable 2 can be fixedly connected to the inlet hole of the crane control box, and the fixing mechanism can fix the main cable 2 to the inlet hole of the crane control box.

[0045] In this embodiment, the first fixing part includes a ring 4, a round tube 5 and a nut 6. One end of the round tube 5 is fixedly connected to the ring 4 and is arranged coaxially with the ring 4. An external thread is formed on the outer circumferential surface of the round tube 5, and the nut 6 is threadedly connected to the round tube 5.

[0046] Before inserting a portion of the main cable 2 and multiple wires 3 into the crane control box through an inlet hole, position the ring 4 inside the control box, with the lower end of the ring 4 abutting against the bottom wall of the control box, and aligning the ring hole of the ring 4 with the inlet hole of the control box. Insert the other end of the round tube 5 downwards through the inlet hole on the control box to the lower side of the control box. Then, thread the nut 6 onto the round tube 5 from its lower end. Next, insert a portion of the main cable 2 and multiple wires 3 upwards through the inner cavity of the round tube 5 and the inner cavity of the ring 4 into the control box. At this point, the portion of the main cable 2 and multiple wires 3 can be inserted into the crane control box through an inlet hole.

[0047] After completing the wiring between the signal receiver and the crane control box, rotate the nut 6 on the round tube 5 to move the nut 6 upward until the nut 6 and the ring 4 clamp the bottom plate of the control box. At this time, the first fixing part can be fixed on the bottom plate of the control box at the position corresponding to the inlet hole of the control box.

[0048] In this embodiment, a first screw hole is formed on the circular tube 5; the second fixing part includes a first bolt 7, which is screwed into the first screw hole, and the screw-in end of the first bolt 7 is used to hold the main cable 2.

[0049] After fixing the first fixing part to the bottom plate of the control box at the position corresponding to the inlet hole of the control box, screw the first bolt 7 into the first screw hole so that the screw-in end of the first bolt 7 abuts against and presses against the main cable 2 of the signal receiver. At this time, the main cable 2 can be fixed in the round tube 5, and the second fixing part can fix the main cable 2 to the first fixing part.

[0050] In this embodiment, the crane signal transmission terminal of the present invention further includes a connecting part, which is used to fix the receiver body 1 to the nut 6 so that the receiver body 1 cannot swing relative to the control box.

[0051] After the first fixing part is fixed to the bottom plate of the control box at the position corresponding to the inlet hole of the control box, the ring 4, the tube 5 and the nut 6 are all fixed on the control box. The receiver body 1 is fixedly connected to the nut 6 through the connecting part, so that the receiver body 1 cannot swing relative to the control box. During the movement of the crane, the possibility of the receiver body 1 swinging relative to the control box can be reduced, the possibility of the receiver body 1 being hit can be reduced, and the possibility of the receiver body 1 being damaged can be reduced.

[0052] In this embodiment, the connecting part includes a fixing plate 8, two connecting plates 9, and two abutting components. The fixing plate 8 is fixedly connected to the nut 6. The two connecting plates 9 are both fixed on the fixing plate 8 and are parallel to each other. The two abutting components are respectively disposed on the two connecting plates 9 and are used to abut against the receiver body 1 from opposite directions.

[0053] After the ring 4, the tube 5, and the nut 6 are fixed to the control box, the fixing plate 8 and the two connecting plates 9 are also fixedly connected to the control box. The receiver body 1 is placed between the two connecting plates 9, and then the receiver body 1 is held in place by the two abutting components. At this time, the receiver body 1 can be fixed between the two connecting plates 9. With this structure, the connecting part can fix the receiver body 1 to the nut 6, so that the receiver body 1 cannot swing relative to the control box. It is also more convenient to fix the receiver body 1 to the nut 6.

[0054] In this embodiment, the fixing plate 8 has a hole in its middle that mates with the nut 6. The nut 6 is located inside the hole, and its outer surface is fixedly connected to the wall of the hole. With this structure, the fixing plate 8 can securely connect the nut 6.

[0055] In this embodiment, a second screw hole is formed on the connecting plate 9; the supporting assembly includes a second bolt 10 and a rotating plate 11, the rotating plate 11 is rotatably connected to the screw-in end of the second bolt 10, and the rotating plate 11 is located between the two connecting plates 9.

[0056] After placing the receiver body 1 between the two connecting plates 9, the corresponding second bolts 10 are rotated in the second screw holes on the two connecting plates 9, causing the two second bolts 10 to move towards each other. The two second bolts 10 drive the two rotating plates 11 to move towards each other. After the two rotating plates 11 have moved a certain distance towards each other, they can abut against the receiver body 1. With this structure, the two abutting components can abut against the receiver body 1.

[0057] After both rotating plates 11 abut against the receiver body 1, the two second bolts 10 can be rotated slightly to make the rotating plates 11 press against the receiver body 1, so that the receiver body 1 is more stably fixed between the two connecting plates 9.

[0058] After the rotating plate 11 abuts against the receiver body 1 and continues to rotate the second bolt 10, since the rotating plate 11 is rotatably connected to the screw-in end of the second bolt 10, the second bolt 10 can rotate relative to the rotating plate 11. Under the action of the friction between the rotating plate 11 and the receiver body 1, the relative rotation between the rotating plate 11 and the receiver body 1 can be reduced, and the wear on the outer surface of the receiver body 1 can be reduced.

[0059] In this embodiment, the screw-in end of the second bolt 10 has a recessed circular slot, and the circumferential surface of the slot has a recessed annular groove. A rod 12 is rotatably fitted within the slot. The outer circumferential surface of the rod 12 protrudes outward to form a limiting ring 13, which is located within and engages with the limiting groove. The rotating plate 11 is fixedly connected to the rod 12. With this structure, the rotating plate 11 can be rotatably connected to the screw-in end of the second bolt 10. The limiting groove and limiting ring 13 can limit the movement of the rod 12, preventing it from dislodging from the slot.

[0060] Example 2

[0061] The difference between this embodiment and Embodiment 1 is that the structure of the fixing mechanism is different, while the rest are the same as in Embodiment 1.

[0062] Please see Figure 6-10 The first fixing part includes a ring 4, a round tube 5 and a nut 6. The round tube 5 is disposed inside the ring 4 in a manner that allows it to move along the axis of the ring 4. An external thread is formed on the outer circumferential surface of the round tube 5. The nut 6 is threaded onto the round tube 5. The second fixing part is also used to fix the round tube 5 inside the ring 4.

[0063] Before inserting a portion of the main cable 2 and multiple wires 3 into the crane control box through an inlet hole, position the ring 4 inside the control box, with its lower end abutting the bottom wall of the control box and its annular hole aligned with the inlet hole. Thread the nut 6 onto one end of the circular tube 5. Then, insert a portion of the main cable 2 and multiple wires 3 from one end of the circular tube 5 and exit from the other end. Next, insert the other end of the circular tube 5, the portion of the main cable 2 outside the other end of the circular tube 5, and multiple wires 3 sequentially through the inlet hole of the control box and the annular hole of the ring 4 to the upper side of the ring 4. At this point, a portion of the main cable 2 and multiple wires 3 can then be inserted into the crane control box through an inlet hole.

[0064] After completing the wiring between the signal receiver and the crane control box, the round tube 5 is fixed inside the ring 4 by the second fixing part. The nut 6 is rotated on the round tube 5 to move the nut 6 upward until the nut 6 and the ring 4 clamp the bottom plate of the control box. At this time, the first fixing part can also be fixed on the bottom plate of the control box at the position corresponding to the inlet hole of the control box.

[0065] In this embodiment, a plurality of through holes 14 are formed on the circular tube 5, and the through holes 14 are evenly spaced along the circumference of the circular tube 5.

[0066] The inner circumferential surface of the ring 4, away from the nut 6, is recessed to form a plurality of grooves 15. The plurality of grooves 15 are evenly spaced along the circumferential direction, and each of the plurality of grooves 15 corresponds one-to-one with a plurality of through holes 14. The grooves 15 penetrate the end face of the ring 4 opposite to the nut 6. The bottom wall of the groove 15 slopes towards the center of the ring 4 from the end away from the nut 6 to the end closer to the nut 6. Here, the bottom wall of the groove 15 refers to the side wall of the groove 15 facing the axis of the ring 4. In the following description, the bottom wall of the groove 15 will have this meaning.

[0067] The second fixing part includes a plurality of sliding blocks 16, which are located in a plurality of through holes 14 in a one-to-one correspondence. The sliding blocks 16 cooperate with the through holes 14. The inner end face of the sliding block 16 is used to abut against the main cable 2, and the outer end of the sliding block 16 is used to abut against the bottom wall of the corresponding groove 15.

[0068] At the other end of the circular tube 5, the portion of the main cable 2 located outside the other end of the circular tube 5, and the multiple wires 3 sequentially pass through the inlet hole of the control box and the annular hole of the circular ring 4 to the upper side of the circular ring 4. Then, the circular tube 5 is moved upward so that the multiple through holes 14 are all located above the circular ring 4. Then, the multiple sliding blocks 16 are placed into the multiple through holes 14 one by one. Then, the circular tube 5 and the multiple sliding blocks 16 are moved downward so that the multiple through holes 14 enter the circular ring 4, so that each sliding block 16 enters the corresponding groove 15, so that the inner end face of each sliding block 16 abuts against the main cable 2, and so that the outer end of each sliding block 16 abuts against the bottom wall of the corresponding groove 15.

[0069] After completing the wiring between the signal receiver and the crane control box, rotate the nut 6 on the circular tube 5 to move the nut 6 upwards until the nut 6 and the ring 4 clamp the bottom plate of the control box. At this time, the sliding block 16 is subjected to a force in the direction of the nut 6. The inner end face of the sliding block 16 can press against the main cable 2, and the outer end of the sliding block 16 can press against the bottom wall of the corresponding groove 15. At this time, the first fixing part can be fixed on the bottom plate of the control box at the position corresponding to the inlet hole of the control box. At the same time, the second fixing part can fix the circular tube 5 in the ring 4 and fix the main cable 2 in the tube 5. While fixing the first fixing part on the bottom plate of the control box at the position corresponding to the inlet hole of the control box, the second fixing part can fix the main cable 2 on the first fixing part, so that the fixing mechanism can more conveniently fix the main cable 2 to the inlet hole of the crane control box.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A crane signal transmission terminal, comprising a signal receiver, the signal receiver including a receiver body, a main cable disposed on the receiver body, and multiple wires extending from the main cable, characterized in that: It also includes a fixing mechanism for fixing the main cable to the inlet hole of the crane control box.

2. The crane signal transmission terminal according to claim 1, characterized in that: The fixing mechanism includes a first fixing part for fixing to the bottom plate of the control box at a position corresponding to the inlet hole of the control box, and a second fixing part for fixing the main cable to the first fixing part.

3. The crane signal transmission terminal according to claim 2, characterized in that: The first fixing part includes a ring, a round tube and a nut. One end of the round tube is fixedly connected to the ring and is arranged coaxially with the ring. An external thread is formed on the outer circumferential surface of the round tube, and the nut is threadedly connected to the round tube.

4. The crane signal transmission terminal according to claim 3, characterized in that: A first screw hole is formed on the circular tube; the second fixing part includes a first bolt, which is screwed into the first screw hole, and the screw-in end of the first bolt is used to hold the main cable.

5. The crane signal transmission terminal according to claim 2, characterized in that: The first fixing part includes a ring, a tube, and a nut. The tube is disposed inside the ring in a manner that allows it to move along the axis of the ring. An external thread is formed on the outer circumferential surface of the tube, and the nut is threaded onto the tube. The second fixing part is also used to fix the tube inside the ring.

6. The crane signal transmission terminal according to claim 5, characterized in that: The circular tube has multiple through holes, which are evenly spaced along the circumference of the circular tube. The inner circumferential surface of the ring at the end away from the nut is recessed to form multiple grooves. The multiple grooves are evenly spaced along the circumferential direction. Each of the multiple grooves corresponds to a multiple of the through holes. The grooves penetrate the end face of the ring opposite to the nut. The bottom wall of the groove slopes towards the middle of the ring from the end away from the nut to the end closer to the nut. The second fixing part includes a plurality of sliding blocks, which are located in a plurality of through holes in a corresponding manner. The sliding blocks cooperate with the through holes. The inner end face of the sliding block is used to abut against the main cable, and the outer end of the sliding block is used to abut against the bottom wall of the corresponding groove.

7. The crane signal transmission terminal according to claim 3, characterized in that: It also includes a connecting part for fixing the receiver body to the nut so that the receiver body cannot swing relative to the control box.

8. The crane signal transmission terminal according to claim 7, characterized in that: The connecting part includes a fixed plate, two connecting plates, and two abutting components. The fixed plate is fixedly connected to the nut. Both connecting plates are fixed on the fixed plate and are parallel to each other. The two abutting components are respectively disposed on the two connecting plates and are used to abut against the receiver body in opposite directions.

9. The crane signal transmission terminal according to claim 8, characterized in that: A second screw hole is formed on the connecting plate; the supporting assembly includes a second bolt and a rotating plate, the rotating plate being rotatably connected to the screw-in end of the second bolt, and the rotating plate being located between the two connecting plates.

10. The crane signal transmission terminal according to claim 9, characterized in that: The screw-in end of the second bolt is recessed inward to form a circular slot, and the circumferential surface of the slot is recessed to form an annular limiting groove. A plug rod is rotatably fitted inside the slot, and the outer circumferential surface of the plug rod protrudes outward to form a limiting ring. The limiting ring is located inside the limiting groove and cooperates with the limiting groove. The rotating plate is fixedly connected to the plug rod.

Images