A wired control box for dump truck box lifting and wired winding method

Abstract

The present invention relates to the technical field of dump truck unloading control, and in particular to a wired control box for lifting and lowering the dump truck body, and a wired winding method. The wired control box of the present invention is provided with an expansion chamber, and is divided into a transmission chamber and a wire winding chamber by a partition. A rotatable wire winding shaft is provided in the wire winding chamber, which is used to retract and release the electric control wire connected to the operating end of the cab, and release it when in use and rewind it when not in use, which is quick and convenient. In addition, the wire winding chamber is provided with a driven shaft that rotates with the wire winding shaft, and a bidirectional thread is provided on the driven shaft, so that the rotation of the driven shaft can drive the screwed moving block to move back and forth, thereby adjusting the position where the electric control wire enters when winding, so that the electric control wire can be wound more evenly on the wire winding shaft. In addition, a brush is also provided in the wire winding chamber to connect the signal wire connected to the control box and the electric control wire, which can effectively avoid the situation where the signal wire is pulled due to the rotation of the wire winding shaft, thereby ensuring the normal use of the control box.

Description

Technical Field

[0001] The present invention relates to the technical field of dump truck unloading control, in particular to a dump truck box lifting wired control box and a winding method of an electric control wire of the dump truck box lifting wired control box. Background Art

[0002] When dump trucks are unloading materials during road repairs, they need to precisely unload materials at multiple locations. Currently, dump truck operators often sit in the cab, manually adjusting the lift lever and unloading materials based on experience, which can lead to over- or under-loading. Furthermore, unloading is a slow process, requiring the operator to remain in the driver's seat and control the lever. If the scenario is set on a battlefield, this would expose the operator for extended periods of time, making them vulnerable to enemy fire.

[0003] Therefore, the inventors considered designing a wired control box that could be used outside the cab, employing a wired connection for remote control. However, this presented several challenges: First, the electrical control cable would be very long. This made it difficult to store the cable when the box was not in use, and the cable would become tangled and occupy a large area. Second, using a take-up reel to wind the cable would easily cause it to become entangled in a fixed area, increasing the outer diameter of that area and wasting space elsewhere. Summary of the Invention

[0004] In order to solve the problems that the electric control wires of the existing wired control box are easily scattered when not in use, and the winding area of the electric control wires is fixed when winding, the present invention provides a wired control box for lifting the dump truck box, and a wired winding method.

[0005] The present invention is achieved by adopting the following technical solutions:

[0006] In a first aspect, the present invention discloses a wired control box for lifting the box body of a dump truck, comprising a main box, an expansion compartment, a main shaft, a brush, a collar, and a reciprocating assembly.

[0007] The main box houses a control circuit board. Control buttons connected to the circuit board are located on the outer surface of the main box. The expansion compartment is connected to one side of the main box. Signal cables extend from the circuit board and extend into the take-up chamber. A partition is installed within the expansion compartment, dividing it into a transmission chamber and a take-up chamber. The main shaft extends through and rotates to connect to the partition. The end of the main shaft that extends into the take-up chamber is coaxially connected to the take-up shaft. The take-up shaft is wound with an electrical control cable that connects to the cab's control panel. A drive element is located on the end of the main shaft away from the take-up chamber, driving the main shaft in forward and reverse rotation. Brushes are located within the take-up chamber and coaxially with the take-up shaft. The electrical control cable and signal cable are electrically connected via the brushes. One end of the brush is connected to the take-up shaft via connector bracket 1, and the other end is connected to the inner wall of the take-up chamber via connector bracket 2. A collar is located within the take-up chamber. The electrical control cable passes through the collar. A reciprocating assembly drives the collar in reciprocating motion along the axis of the take-up shaft. The reciprocating component is connected to the main shaft in a transmission manner.

[0008] As a further solution of the present invention: the reciprocating assembly includes a driven shaft, a moving block, a slide rail, and a slider. The driven shaft is arranged parallel to the take-up shaft. The driven shaft also passes through and rotates to connect the partition. The driven shaft is connected to the main shaft by transmission. A bidirectional thread is provided on the driven shaft, and the bidirectional thread section is located in the take-up cavity and corresponds to the length of the take-up shaft. The moving block is screwed to the bidirectional thread section on the driven shaft. The moving block is connected to the sliding sleeve through connecting rod 1. The slide rail is provided on the inner wall of the take-up cavity and is arranged parallel to the driven shaft. The slider is slidably connected to the slide rail and is connected to the moving block through connecting rod 2.

[0009] As a further solution of the present invention: a driven gear is provided at one end of the driven shaft away from the wire take-up chamber, a driving gear is correspondingly provided on the main shaft, and the driving gear is meshed with the driven gear.

[0010] As a further solution of the present invention, a wire clamp is further provided on the side of one end of the take-up shaft close to the brush, and the electric control wire passes through the wire clamp.

[0011] As a further solution of the present invention: a through opening for the electric control line to enter and exit is provided at the bottom of the wire take-up cavity.

[0012] A wheel frame is provided at the through opening, and two spaced wire wheels are provided on the wheel frame, and the electric control line passes through between the wire wheels.

[0013] As a further embodiment of the present invention, the control buttons include an on / off button, a brake button, an up button, and a down button. The on / off button is used to control power on and off. The brake button is used to control emergency braking. The up button is used to control the raising of the carriage. The down button is used to control the lowering of the carriage.

[0014] As a further solution of the present invention, an indicator light is provided in the control button for indicating the working status of the control button.

[0015] As a further solution of the present invention: the wired control box for lifting the dump truck box also includes a switching component for locking the driving gear to prevent rotation or unlocking the driving gear to rotate.

[0016] The switching assembly includes a clamping rod, a bracket, a lever, and a limit plate. The clamping rod is located above the driving gear. The bottom end of the clamping rod faces the driving gear, and the top end extends out of the transmission chamber and is provided with a top plate. The bracket is set on the top of the main box. The lever is hinged to the bracket. One end of the lever extends below the top plate and contacts the top plate. The limit plate is set on the clamping rod and located in the transmission chamber. It is used to limit the clamping rod to move to the highest position so that one end of the lever still contacts the top plate; a compression spring is also connected between the limit plate and the top of the transmission chamber.

[0017] As a further solution of the present invention, a handle is provided on the outer top of the main body box, and a lever is positioned on one side of the handle. When the handle is held by a hand of the user, the other end of the lever is within the range of action of the user's hand.

[0018] In a second aspect, a wired winding method is provided for winding the electric control wire of the wired control box for lifting the dump truck box disclosed in the first aspect.

[0019] Wired reeling methods include:

[0020] First, control the switching component to release the driving gear;

[0021] Then the main shaft is driven to rotate in one direction. The main shaft causes the reciprocating assembly to move back and forth along the axial direction of the take-up shaft with the collar through the transmission assembly, thereby evenly winding the electric control wire onto the take-up shaft.

[0022] After the electric control line is wound up, the switching component is controlled to lock the driving gear.

[0023] The present invention has the following beneficial effects:

[0024] 1. The wired control box of the present invention is provided with an expansion chamber, which is divided into a transmission chamber and a wire-receiving chamber by a partition. A rotatable wire-receiving shaft is provided in the wire-receiving chamber for retracting and releasing the electric control wire connected to the operating end of the cab. It can be released when in use and reeled in when not in use, which is quick and convenient. The wire-receiving chamber is also provided with a driven shaft that rotates with the wire-receiving shaft, and a bidirectional thread is provided on the driven shaft, so that the rotation of the driven shaft can drive the movable block screwed thereto to move back and forth, thereby adjusting the position where the electric control wire enters when reeling in the wire, so that the electric control wire can be reeled in more evenly on the wire-receiving shaft. In addition, a brush is also provided in the wire-receiving chamber to connect the signal wire connected to the control box and the electric control wire, which can effectively avoid the situation where the signal wire is pulled by the rotation of the wire-receiving shaft, thereby ensuring the normal use of the control box.

[0025] 2. The present invention also provides a switching component, which can lock the driving gear to prevent it from rotating or unlock the driving gear to rotate, so that switching can be performed according to specific circumstances, which is more flexible.

[0026] 3. The wired control box of the present invention is connected to the operating end of the cab by wired connection, so that the operator can get off the vehicle, control the unloading through the control box, and adjust the corresponding car lifting action in real time based on the visual unloading amount of the car, thereby ensuring the unloading effect; in addition, if unloading is carried out on the battlefield, the operator can also hide on the side of the dump truck and use the cover of the car body to prevent being shot by the enemy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A front view of a wired control box for lifting a dump truck box provided by an embodiment of the present invention;

[0029] Figure 2 This is a rear view of a wired control box for lifting the dump truck box provided by an embodiment of the present invention;

[0030] Figure 3 for Figure 1 The internal structure diagram of the expansion warehouse;

[0031] Figure 4 for Figure 2 The internal structure diagram of the expansion warehouse;

[0032] Figure 5 for Figure 1 The internal structure diagram of the middle expansion compartment from the side;

[0033] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0034] 1. Main box, 2. Handle, 3. Expansion compartment, 301. Through port, 302. Partition, 303. Wire pulley, 401. Signal line, 402. Electric control line, 403. Brush, 404. Take-up reel, 405. Connecting frame 1, 406. Connecting frame 2, 501. Spindle, 502. Crank handle, 601. Driving gear, 602. Clamping rod, 603. Limiting plate, 604. Compression spring, 605. Bracket, 606. Top plate, 607. Lever, 701. Driven gear, 702. Driven shaft, 703. Moving block, 704. Ring, 705. Slider, 706. Slide rail. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] Please see Figure 1 、 Figure 2 , are respectively the front view and the rear view of the wired control box for lifting the dump truck box provided in this embodiment, wherein the internal structure of the expansion compartment 3 is as shown in the front view. Figure 3 As shown. From the rear view angle, the internal structure of the expansion compartment 3 is as follows Figure 4 shown.

[0037] The wired control box for lifting the dump truck box in this embodiment includes a main box 1, an expansion compartment 3, a main shaft 501, a brush 403, a collar 704, and a reciprocating assembly.

[0038] The wired control box adopts a handheld design. A handle 2 can be installed on the top of the main box 1 to facilitate the taking of the entire wired control box. The main box 1 can also be designed to be handheld and can be taken with one hand.

[0039] A circuit board that performs a control function is provided inside the main box 1. The circuit board can be a PCB board with a control circuit printed on it, thereby achieving the control function. Control buttons connected to the circuit board are provided on the outer surface of the main box 1. Function control marks are printed on the corresponding control buttons: pressing the corresponding control button once will implement the corresponding control operation; pressing the corresponding control button again will reset the control button, and the corresponding control operation will stop. In this embodiment, the control buttons include an on / off button, a brake button, an up button, and a down button. The start button is used to control the power on. The off button is used to control the power off. The brake button is used to control the emergency brake. The up button is used to control the lifting of the car. The down button is used to control the lowering of the car.

[0040] In order to improve the recognition of button use, an indicator light can be installed in the control button to indicate the working status of the control button: after pressing the control button once, the indicator light in the control button will light up; pressing the control button again will reset the control button, and the indicator light in the control button will go out.

[0041] The expansion bin 3 is connected to one side of the main box 1. The circuit board leads out the signal line 401, and the signal line 401 extends into the wire-receiving cavity. A partition 302 is provided in the expansion bin 3, and the partition 302 divides the expansion bin 3 into a transmission cavity and a wire-receiving cavity. The main shaft 501 passes through and rotates to connect the partition 302. The end of the main shaft 501 extending into the wire-receiving cavity is coaxially connected to the wire-receiving shaft 404. The wire-receiving shaft 404 is wound with an electric control line 402 for connecting to the operating end of the cab. A driving member is provided at the end of the main shaft 501 away from the wire-receiving cavity, which is used to drive the main shaft 501 to rotate forward or reverse. The main shaft 501 can also drive the wire-receiving shaft 404 to rotate forward or reverse synchronously.

[0042] See Figure 3 Brush 403 is disposed within the take-up chamber and coaxially with take-up shaft 404. Control line 402 and signal line 401 are electrically connected via brush 403. One end of brush 403 is connected to take-up shaft 404 via connecting bracket 1 405, and the other end is connected to the inner wall of the take-up chamber via connecting bracket 2 406.

[0043] Specifically, one end of the brush 403 is connected to the take-up shaft 404 and can rotate with the take-up shaft 404. The other end of the brush 403 is connected to the take-up chamber and is therefore fixed. The electric control wire 402 and the signal wire 401 are electrically connected using the brush 403. The structure of the brush 403 itself allows its two ends to rotate relative to each other. Therefore, the electric control wire 402 can be wound or released around the take-up shaft 404 without moving the signal wire 401 with it, thereby avoiding pulling on the signal wire 401. A wire clamp can also be installed laterally on the end of the take-up shaft 404 near the brush 403, so that the electric control wire 402 passes through the wire clamp. In this way, the wire clamp clamps the electric control wire 402, thereby strengthening the restriction on the electric control wire 402.

[0044] Of course, the bottom of the cable take-up chamber should have an opening 301 for the electric control cable 402 to enter and exit, ensuring smooth movement of the electric control cable 402. The length of the electric control cable 402 can be adjusted according to the specific situation, and a thinner wire is recommended. The connection between the electric control cable 402 and the cab control terminal can be an integrated design, or a corresponding electrical plug design can be used: the electric control cable 402 is equipped with an electrical plug and the cab control terminal is equipped with an electrical socket.

[0045] In addition, a wheel frame can be installed at the through port 301, on which two spaced guide wheels 303 are installed, and the electric control line 402 passes between the guide wheels 303. In this way, the two guide wheels are used to guide the electric control line 402 to avoid wear and tear caused by friction between the electric control line 402 and the edge of the through port 301.

[0046] See Figure 3The collar 704 is disposed in the take-up chamber. The electric control line 402 passes through the collar 704. The reciprocating assembly is used to drive the collar 704 to reciprocate along the axial direction of the take-up shaft 404. The reciprocating assembly is in transmission connection with the main shaft 501.

[0047] See Figure 5 In this embodiment, the reciprocating assembly includes a driven shaft 702, a moving block 703, a slide rail 706, and a slider 705. The driven shaft 702 is arranged parallel to the take-up shaft 404. The driven shaft 702 also passes through and rotates to connect the partition 302. The driven shaft 702 is transmission-connected to the main shaft 501, wherein the transmission connection can be a gear set meshing method: a driven gear 701 is installed at the end of the driven shaft 702 away from the take-up chamber, and a driving gear 601 is correspondingly installed on the main shaft 501, and the driving gear 601 is meshed with the driven gear 701. A bidirectional thread is machined on the driven shaft 702, and the bidirectional thread section is located in the take-up chamber and corresponds to the length of the take-up shaft 404. The moving block 703 is screwed to the bidirectional thread section on the driven shaft 702. The moving block 703 is connected to the sliding sleeve through a connecting rod. The slide rail 706 is fixed to the inner wall of the take-up chamber and is arranged parallel to the driven shaft 702. The slider 705 is slidably connected to the slide rail 706 and is connected to the moving block 703 through the second connecting rod.

[0048] The driving member can be a manual design, such as a crank 502: the main shaft 501 extends out of the transmission cavity and is connected to the crank 502, so that the crank 502 can drive the take-up shaft 404 to rotate forward or reverse, thereby releasing or rewinding the electric control line 402.

[0049] In this way, the driving member drives the main shaft 501 to rotate, causing the take-up shaft 404 to reel in the electric control line 402, while also causing the driven gear 701 to rotate with the driven shaft 702 through the driving gear 601. Because the moving block 703 is screwed to the bidirectional threaded section, and the moving block 703 is also guided by the slider 705 and the slide rail 706, as the driven shaft 702 rotates, the moving block 703 will move back and forth along the axial direction of the driven shaft 702, thereby moving synchronously with the collar 704. The electric control line 402 passes through the collar 704, so that the electric control line 402 can be reeled on the take-up shaft 404 more evenly, and no longer reeled in a fixed area. The release of the electric control line 402 is similar, and the main shaft 501 drives the take-up shaft 404 to reverse.

[0050] In another embodiment, a switching assembly can be added to lock the driving gear 601 from rotating or unlock the driving gear 601 for rotation. When the switching assembly locks the driving gear 601 from rotating, the release amount of the electric control wire 402 does not change; when the switching assembly unlocks the driving gear 601 from rotating, the release amount of the electric control wire 402 can be adjusted according to the winding or release situation; this provides greater flexibility.

[0051] The switching assembly is designed based on the principle of lever 607, and includes a lever 602, a bracket 605, a lever 607, and a limit plate 603. The lever 602 is located above the driving gear 601. The bottom end of the lever 602 faces the driving gear 601, and the top end extends out of the transmission cavity and is provided with a top plate 606. The bracket 605 is set on the outer top of the main box 1. The lever 607 is hinged to the bracket 605. One end of the lever 607 extends below the top plate 606 and contacts the top plate 606. The limit plate 603 is set on the lever 602 and is located in the transmission cavity. It is used to limit the lever 607 so that one end is still in contact with the top plate 606 when the lever 602 moves up to the highest position. A compression spring 604 is also connected between the limit plate 603 and the top of the transmission cavity.

[0052] See Figure 4 Due to the action of compression spring 604, the latching rod 602 always tends to move closer to the driving gear 601. When there is no external force acting on lever 607, compression spring 604 will cause the latching rod 602 to engage the driving gear 601, thereby locking the driving gear 601 from rotating. Pressing down on the other end of lever 607 causes one end of lever 607 to tilt up, and the latching rod 602 is raised via the top plate 606, thereby separating the latching rod 602 from the driving gear 601 and unlocking the driving gear 601 from rotating.

[0053] This embodiment also discloses a wired winding method, which is used to wind up the electric control wire 402 of the wired control box for lifting the dump truck box disclosed above.

[0054] This wired winding method includes: first controlling the switching component to release the driving gear 601; then driving the main shaft 501 to rotate unidirectionally, and the main shaft 501 causes the reciprocating component to move back and forth along the axial direction of the take-up shaft 404 with the ring 704 through the transmission component, thereby evenly winding the electric control wire 402 onto the take-up shaft 404; after the electric control wire 402 is completely wound, the switching component is controlled to lock the driving gear 601.

[0055] Specifically, considering the usage scenario of this wired control box, the operation should be completed by one person. If a handle 2 is installed on the top of the main box 1, the lever 607 should be set on the side of the handle 2. When the electric control wire 402 needs to be reeled in, the user holds the handle 2 with one hand and lifts the wired control box. At this time, the handle 2 is wrapped by four fingers except the thumb; the other end of the lever 607 is within the range of the user's hand, so that the thumb of the hand can also press the other end of the lever 607. Of course, if the main box 1 is a handheld specification, the user directly holds the main box 1 with one hand and presses the other end of the lever 607 with the thumb of the hand. In this way, the active gear 601 can be unlocked and rotated by switching the assembly. The user's other hand acts on the drive member to achieve uniform reeling of the electric control wire 402.

[0056] After winding is completed, the other end of the lever 607 is released, and the clamping rod 602 re-locks the driving gear 601 under the action of the compression spring 604, so that the switching component locks the driving gear 601, so that the take-up shaft 404 can no longer rotate, ensuring the stability of the electric control line 402.

[0057] Similarly, when the electric control wire 402 needs to be released, the driving gear 601 must be unlocked and rotated first.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wired control box for dump truck body lifting, characterized in that: include: The main box has a circuit board inside which plays a control role; the outer surface of the main box is provided with control buttons connected to the circuit board; The expansion chamber is connected to one side of the main box; the circuit board leads out the signal line, and the signal line extends into the wire-receiving cavity; a partition is provided in the expansion chamber, which divides the expansion chamber into a transmission cavity and a wire-receiving cavity; A main shaft passes through and rotates to connect the partition; one end of the main shaft extending into the take-up cavity is coaxially connected to a take-up shaft; an electric control line for connecting to the operating end of the cab is wound around the take-up shaft; a driving member is provided at the end of the main shaft away from the take-up cavity for driving the main shaft to rotate forward or reverse; A brush is disposed in the take-up cavity and coaxially with the take-up shaft; the electric control line and the signal line are electrically connected via the brush; one end of the brush is connected to the take-up shaft via a first connecting frame, and the other end is connected to the inner wall of the take-up cavity via a second connecting frame; A collar is provided in the wire-receiving cavity; the electric control wire passes through the collar; as well as A reciprocating assembly is used to drive the collar to reciprocate along the axial direction of the take-up shaft; the reciprocating assembly is connected to the main shaft in a transmission manner; The reciprocating assembly comprises: A driven shaft is arranged parallel to the take-up shaft; a driven gear is provided at one end of the driven shaft away from the take-up chamber, and a driving gear is correspondingly provided on the main shaft, and the driving gear meshes with the driven gear; The dump truck box lifting wired control box also includes a switching component for locking the driving gear to prevent rotation or unlocking the driving gear to rotate; The switching component includes: A clamping rod is located above the driving gear; the bottom end of the clamping rod faces the driving gear, and the top end extends out of the transmission cavity and is provided with a top plate; A bracket is arranged on the outer top of the main box; a lever hinged to the bracket; one end of the lever extends below the top plate and contacts the top plate; and A limit plate is provided on the card rod and is located in the transmission cavity, and is used to limit the end of the lever from still contacting the top plate when the card rod moves up to the highest position; a compression spring is also connected between the limit plate and the top of the transmission cavity; The main box is provided with a handle on the top, and the lever is located on one side of the handle; When the handle is grasped by one hand of the user, the other end of the lever is within the reach of the user's hand.

2. The wired control box for dump truck box lifting according to claim 1, characterized in that: The driven shaft also passes through and is rotatably connected to the partition; the driven shaft is in transmission connection with the main shaft; a bidirectional thread is provided on the driven shaft, and the bidirectional thread section is located in the take-up cavity and corresponds to the length of the take-up shaft; The reciprocating assembly further comprises: A moving block is screwed to a bidirectional threaded section on the driven shaft; the moving block is connected to the sliding sleeve via a connecting rod; A slide rail is provided on the inner wall of the wire-receiving cavity and is arranged parallel to the driven shaft; and The slider is slidably connected to the slide rail and is connected to the moving block through a second connecting rod.

3. The wired control box for dump truck box lifting according to claim 1, characterized in that: A wire clamp is also provided on the side of one end of the take-up shaft close to the brush, and the electric control wire passes through the wire clamp.

4. The wired control box for dump truck box lifting according to claim 1, characterized in that: The bottom of the wire-receiving cavity is provided with a through opening for the electric control wire to enter and exit; A wheel frame is provided at the through opening, and two spaced wire wheels are provided on the wheel frame, and the electric control line passes through between the wire wheels.

5. The wired control box for dump truck box lifting according to claim 1, characterized in that: The control buttons include: A switch for controlling the power on and off; Brake button for controlling emergency braking; An up button for controlling the raising of the carriage; and A down button used to control the descent of the carriage.

6. The wired control box for lifting the dump truck body according to claim 5, characterized in that: An indicator light is provided inside the control button for indicating the working status of the control button.

7. A wired winding method, characterized in that: It is used to reel in the electric control wire of the dump truck box lifting wired control box according to any one of claims 1 to 6; The wired winding method comprises: First, control the switching component to release the driving gear; then drive the main shaft to rotate in one direction. The main shaft uses the transmission component to make the reciprocating component carry the ring to reciprocate along the axial direction of the take-up shaft, thereby evenly winding the electric control wire onto the take-up shaft; after the electric control wire is wound up, control the switching component to lock the driving gear.

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