Anti-collision and anti-pinch devices

Abstract

The anti-collision and anti-clamping device provided by the present invention comprises: a conveyor frame, a conveyor belt, an anti-collision protection device, and an anti-clamping device; a reel and an anti-collision bracket are provided at the first end of the conveyor frame; the conveyor belt is sleeved over the reel, and the rotation of the reel drives the conveyor belt; the anti-collision protection device is mounted on the anti-collision bracket; the anti-clamping device is mounted on the anti-collision bracket, and the anti-clamping device includes a shielding plate positioned between the conveyor belt and the anti-collision protection device, with a first gap between the shielding plate and the conveyor belt and a second gap between the shielding plate and the anti-collision protection device. Thus, the gap between the anti-collision protection device and the conveyor belt is effectively and suspended, preventing goods from falling, getting stuck, and being clamped, while also not limiting the safety function of the anti-collision protection device.

Description

Technical Field

[0001] The present invention relates to the field of airport special equipment, and in particular to an anti-collision and anti-pinch device. Background Art

[0002] A bulk loader is a device used to load and unload bulk cargo, such as baggage and parcels, on aircraft. Bulk loaders are mobile and primarily comprise a travel system and specialized equipment. To minimize unnecessary impacts with aircraft and prevent minor cracks that could endanger aircraft safety, anti-collision protection devices should be installed at all points where the bulk loader could potentially contact the aircraft. These devices prioritize contact with the aircraft, controlling the devices' ability to sense contact forces with the aircraft and providing flexible buffering to ensure that other structural components of the bulk loader do not exert excessive impact forces on the aircraft. Therefore, the anti-collision protection devices must be positioned at a buffer distance from the bulk loader's main structure. Furthermore, the end of the bulk loader where the cargo is transported and lifted to the aircraft is a potential point of contact. This means there is a buffer distance between the conveyor system at the aircraft end and the anti-collision protection device. Since conveyors are circular conveying equipment, this buffer distance can cause cargo to become stuck, slip, or become trapped by belts during transport, potentially leading to safety incidents.

[0003] The existing technology has the following technical problems: there is a gap between the conveying device and the anti-collision protection device, which makes it easy for items to fall; and if a component is set that cannot follow the suspension, the conveying device and the anti-collision protection device will become a "hard connection", thereby rendering the anti-collision protection device ineffective and possibly causing damage to the aircraft. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an anti-collision and anti-clamping device, the purpose of which is to adapt to the gap between the conveying device and the anti-collision protection device to prevent the goods from falling, getting stuck, or being clamped.

[0005] In order to solve the above technical problems, the present invention provides an anti-collision and anti-pinch device, the purpose of which is that the additional components provided can be suspended and can be well maintained without forming a hard connection with the anti-collision protection device according to slight changes in the anti-collision protection device, thereby ensuring that the function of the anti-collision device is effective.

[0006] In order to achieve the above-mentioned object, the present invention provides an anti-collision and anti-pinch device, comprising:

[0007] A conveying frame, wherein a first end of the conveying frame is provided with a reel and an anti-collision bracket;

[0008] A conveyor belt, wherein the conveyor belt is sleeved outside the reel, and the rotation of the reel drives the conveyor belt to move;

[0009] an anti-collision protection device, the anti-collision protection device being mounted on the anti-collision bracket;

[0010] An anti-clamping device is installed on the anti-collision bracket, and the anti-clamping device includes a shielding plate, which is located between the conveyor belt and the anti-collision protection device. There is a first gap between the shielding plate and the conveyor belt, and there is a second gap between the shielding plate and the anti-collision protection device.

[0011] Preferably, the anti-collision bracket includes an extended support plate, a fixed cross frame and a suspended cross frame; the extended support plate is fixedly connected to the first end of the conveying frame; the fixed cross frame is connected to the extended support plate; the suspended cross frame is rotatably connected to the fixed cross frame.

[0012] Preferably, a suspension block is provided between the protruding support plate and the fixed cross frame, and the suspension block is a rubber pad or a laminated spring;

[0013] The fixed horizontal frame is provided with a first guide rod and a first spring. The first spring is sleeved in the first guide rod and the first spring is against the suspension horizontal frame.

[0014] Preferably, the anti-collision protection device includes an anti-collision pressure-sensitive tube, and the anti-collision pressure-sensitive tube is installed on the suspended cross frame.

[0015] Preferably, the anti-pinch device further comprises an anti-pinch bracket seat, a first connecting rod, a supporting portion, a second spring and a guide device;

[0016] The shielding plate is provided with a first mounting hole;

[0017] The guide device comprises a first guide post and a second guide post;

[0018] The anti-pinch bracket seat includes a second mounting hole and a third mounting hole;

[0019] Two ends of the first connecting rod are rotatably connected to the first mounting hole and the second mounting hole respectively;

[0020] The first guide post is rotatably connected around the axis of the first mounting hole, the second guide post is rotatably connected around the axis of the third mounting hole, and both ends of the second spring are respectively sleeved on the first guide post and the second guide post;

[0021] The supporting portion is connected to the shielding plate, and the supporting portion is against the conveyor belt.

[0022] Preferably, the anti-pinch device further comprises a second connecting rod; the shielding plate is further provided with a fourth mounting hole;

[0023] The axes of the first mounting hole, the fourth mounting hole, the second mounting hole, and the third mounting hole are projected orthographically to form a parallelogram;

[0024] Two ends of the second connecting rod are rotatably connected to the third mounting hole and the fourth mounting hole respectively;

[0025] The support portion includes a roller and a roller bracket, the roller bracket includes a roller hole, the roller rotates around a roller shaft, the roller bracket is fixedly connected to the shielding plate, and the roller shaft is rotatably connected to the roller hole;

[0026] The roller abuts against the conveyor belt.

[0027] Preferably, the anti-collision bracket includes a protruding support plate and a fixed cross frame, a suspension block is provided between the protruding support plate and the fixed cross frame, the protruding support plate is fixedly connected to the first end of the conveying frame, and the fixed cross frame, the suspension block and the protruding support plate are sequentially superimposed and connected;

[0028] The anti-pinch bracket seat is fixedly connected to the fixed horizontal frame.

[0029] Preferably, the first gap is less than or equal to 4 mm; and the second gap is less than or equal to 4 mm.

[0030] Preferably, the anti-collision protection device is lower than the conveying plane of the conveyor belt, and the baffle includes a first surface and a second surface, the first surface is parallel to the conveying plane of the conveyor belt, the first surface is lower than the conveying plane of the conveyor belt, the second surface forms an obtuse angle with the first surface, and the second surface is bent toward the anti-collision protection device; the first surface and the second surface are integrally formed.

[0031] Preferably, the shielding plate is made of a hard material, such as stainless steel or polyvinyl chloride plastic.

[0032] Preferably, the anti-collision and anti-pinch device further comprises an anti-pinch sensing device;

[0033] The anti-collision bracket includes a protruding support plate, a fixed cross frame and a suspended cross frame, the protruding support plate is fixedly connected to the first end of the conveying frame, the fixed cross frame is connected to the protruding support plate, and the suspended cross frame is rotatably connected to the fixed cross frame;

[0034] The anti-pinch sensing device is installed on the fixed horizontal frame and is located between the fixed horizontal frame and the shielding plate.

[0035] Preferably, the anti-pinch sensing device includes a first sensing switch, which is a normally closed switch;

[0036] The conveyor belt is driven by a belt motor and has a belt drive power supply;

[0037] The anti-pinch sensing device also includes an anti-pinch circuit;

[0038] The anti-pinch circuit includes the belt motor, the belt drive power supply, and the first induction switch connected in series, or the anti-pinch circuit includes the coil of the control switch of the belt motor and the first induction switch connected in series and the contacts of the control switch, the belt motor, and the belt drive power supply connected in series.

[0039] Preferably, the anti-collision and anti-pinch device further comprises an anti-collision sensing device;

[0040] The anti-collision bracket includes a protruding support plate, a fixed cross frame and a suspended cross frame, the protruding support plate is fixedly connected to the first end of the conveying frame, the fixed cross frame is connected to the protruding support plate, and the suspended cross frame is rotatably connected to the fixed cross frame;

[0041] The anti-collision sensing device is installed on the fixed horizontal frame and is located between the fixed horizontal frame and the anti-collision protection device.

[0042] Preferably, the anti-collision sensing device includes a second sensing switch;

[0043] The conveyor frame is driven by a traveling mechanism, and the traveling mechanism is provided with a traveling mechanism start-stop device;

[0044] The anti-collision sensing device further includes an anti-collision circuit, and the anti-collision circuit includes the walking mechanism start-stop device and the second sensing switch connected in series.

[0045] Preferably, the travel mechanism comprises a travel drive motor and a braking device, the braking device comprises a braking device actuator, the braking device is an electronically controlled hydraulic braking system, and the braking device actuator is a solenoid valve or an electric pump;

[0046] The second induction switch includes a normally closed contact and a normally open contact;

[0047] The walking mechanism start-stop device comprises a starting circuit branch and a braking circuit branch;

[0048] The starting circuit branch, the travel drive motor and the normally closed contact are connected in series;

[0049] The brake circuit branch, the brake device actuator and the normally open contact are connected in series.

[0050] Preferably, the travel mechanism comprises a travel drive engine and a braking device;

[0051] The travel drive engine also includes a start-stop control switch and a start-stop control coil;

[0052] The braking device includes a braking device actuator, the braking device is an electronically controlled hydraulic braking system, and the braking device actuator is a solenoid valve or an electric pump;

[0053] The second induction switch includes a normally closed contact and a normally open contact;

[0054] The walking mechanism start-stop device comprises a start-stop circuit branch and a brake circuit branch;

[0055] The start-stop circuit branch, the start-stop control coil and the normally closed contact are connected in series;

[0056] The brake circuit branch, the brake device actuator and the normally open contact are connected in series.

[0057] Compared with the prior art, the present invention provides an anti-collision and anti-clamping device, comprising: a conveyor frame, wherein the first end of the conveyor frame is provided with a reel and an anti-collision bracket; a conveyor belt, wherein the conveyor belt is sleeved outside the reel, and the rotation of the reel drives the conveyor belt to move; an anti-collision protection device, wherein the anti-collision protection device is mounted on the anti-collision bracket; an anti-clamping device, wherein the anti-clamping device is mounted on the anti-collision bracket, and wherein the anti-clamping device includes a shielding plate, wherein the shielding plate is located between the conveyor belt and the anti-collision protection device, wherein the shielding plate has a first gap with the conveyor belt, and wherein the shielding plate has a second gap with the anti-collision protection device. Accordingly, the gap between the anti-collision protection device and the transmission belt can be effectively and suspended to prevent the goods from falling, getting stuck, and being clamped, without limiting the safety function of the anti-collision protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a structural schematic diagram of an embodiment of the anti-collision and anti-pinch device of the present invention.

[0059] Figure 2 This is an exploded view of parts of an anti-collision and anti-pinch device according to an embodiment of the present invention.

[0060] Figure 3 This is a partial enlarged view of part A in the exploded view of parts of an anti-collision and anti-pinch device of an embodiment of the present invention.

[0061] Figure 4 This is a partial enlarged view of part B in the exploded view of components of an anti-collision and anti-pinch device of an embodiment of the present invention.

[0062] Figure 5 This is a partial enlarged view of part C in the exploded view of parts of an anti-collision and anti-pinch device according to an embodiment of the present invention.

[0063] Figure 6This is a partial enlarged view of part D in the exploded view of parts of an anti-collision and anti-pinch device of an embodiment of the present invention, that is, a component view of the floating installation device of the anti-pinch device.

[0064] Figure 7 This is an exploded view of parts of another embodiment of the anti-collision and anti-pinch device of the present invention.

[0065] Figure 8 This is a partial enlarged view of part E in the exploded view of parts of another embodiment of the anti-collision and anti-pinch device of the present invention, that is, a partial enlarged view of the anti-pinch sensing device.

[0066] Figure 9 This is a partial enlarged view of part F in the exploded view of parts of another embodiment of the anti-collision and anti-pinch device of the present invention, that is, a partial enlarged view of the anti-collision sensing device.

[0067] Description of the accompanying drawings.

[0068] 1 Conveyor rack 11 First end of conveyor rack

[0069] 12 Roll 13 Anti-collision bracket

[0070] 131 Extended support plate 132 Fixed cross frame

[0071] 1321 First guide rod 1322 First spring

[0072] 133 Suspended cross frame 134 Suspension block

[0073] 2 Conveyor belt 21 Conveyor plane

[0074] 3 Anti-collision protection device 31 Anti-collision pressure sensitive tube

[0075] 4 Anti-pinch device 41 shield

[0076] 411 first mounting hole 412 fourth mounting hole

[0077] 413 First side 414 Second side

[0078] 415 obtuse angle 42 anti-pinch bracket seat

[0079] 421 Second mounting hole 422 Third mounting hole

[0080] 43 first connecting rod 431 first end of the first connecting rod

[0081] 432 Second end of the first connecting rod 44 Support portion

[0082] 441 Roller 442 Roller Bracket

[0083] 443 roller hole 444 roller shaft

[0084] 45 second spring 451 first end of the second spring

[0085] 452 second end of the second spring 46 guide device

[0086] 461 First guide post 462 Second guide post

[0087] 47 Second connecting rod 471 First end of the second connecting rod

[0088] 472 Second end of the second connecting rod 5 Anti-pinch sensing device

[0089] 51 First sensor switch 6 Anti-collision sensor device

[0090] 61 Second induction switch δ1 First gap

[0091] δ2 Second gap DETAILED DESCRIPTION

[0092] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0093] See Figure 1 and Figure 2 As shown, the present invention provides an anti-collision and anti-pinch device, comprising: a conveyor frame 1, wherein a first end 11 of the conveyor frame is provided with a reel 12 and an anti-collision bracket 13; a conveyor belt 2, wherein the conveyor belt 2 is sleeved over the reel 12, and the rotation of the reel 12 drives the conveyor belt 2. Accordingly, the conveyor belt 2 and the reel 12 constitute a belt drive for transporting bulk cargo. The first end 11 of the conveyor frame is the end where the cargo reaches the aircraft, the end at a certain height; an anti-collision protection device 3, wherein the anti-collision protection device 3 is mounted on the anti-collision bracket 13 to prevent the bulk cargo loader from colliding with the aircraft; and an anti-pinch device 4, wherein the anti-pinch device 4 is mounted on the anti-collision bracket 13 and includes a shielding plate 41, which is located between the conveyor belt 2 and the anti-collision protection device 3. The shielding plate 41 has a first gap δ1 with the conveyor belt 2 and a second gap δ2 with the shielding plate 41. Accordingly, the baffle 41 is not in contact with the conveyor belt 2 and the anti-collision protection device 3, and is suspended between the two components, which can effectively prevent the falling of bulk goods. Moreover, the setting of the first gap δ1 can prevent objects larger than the first gap δ1 from being clamped in the conveyor belt 2, and the setting of the second gap δ2 can ensure that the anti-collision protection device 3 is not "hard-connected" and can not destroy and limit the "function of avoiding collision with the aircraft".

[0094] See Figure 2 and Figure 3 As shown, the anti-collision floating connection structure of the anti-collision protection device 3 is further described. The anti-collision bracket 13 includes a protruding support plate 131, a fixed cross frame 132 and a suspended cross frame 133. The protruding support plate 131 is fixedly connected to the first end 11 ( Figure 2 The "first end 11" of the conveyor frame is not shown, but the extended support plate 131 and the first end 11 of the conveyor frame are threadedly connected and fixedly connected by bolts. The fixed cross frame 132 is connected to the extended support plate 131. The suspended cross frame 133 is rotatably connected to the fixed cross frame 132; as shown in the figure, the suspended cross frame 133 and the fixed cross frame 132 are rotatably connected via a hinge. Accordingly, when the suspended cross frame 133 is subjected to external force, it can rotate about its axis relative to the fixed cross frame 132, primarily achieving a safety and collision avoidance function. Corresponding additional features do not limit the realization of this function.

[0095] See Figure 2 and Figure 4 The figure further illustrates the connection between the extended support plate 131 and the fixed cross frame 132. A suspension block 134 is provided between the extended support plate 131 and the fixed cross frame 132. The suspension block 134 is a rubber gasket or a laminated spring. Thus, the extended support plate 131 and the fixed cross frame 132 are fixedly connected overall, but slight movement between the two components is possible. Because the rubber gasket has a certain degree of damping and the laminated spring has a certain degree of elasticity, the suspension block 134 can also dissipate energy (reducing impact energy or force) or buffer energy (reducing impact force peaks and increasing force frequency).

[0096] See Figure 2 and Figure 4 As shown, the energy-absorbing and buffering structural features of the floating connection structure are further explained. The fixed cross frame 132 is provided with a first guide rod 1321 and a first spring 1322. The first spring 1322 is sleeved within the first guide rod 1321 and abuts against the floating cross frame 133. When the first spring 1322 is in its natural state, it can be defined as the free state of the floating cross frame 133. When the floating cross frame 133 is subjected to an external inward thrust, the floating cross frame 133 can rotate about an axis relative to the fixed cross frame 132 and compress the first spring 1322, converting the impact energy into elastic potential energy for storage. This allows the anti-collision protection device 3 to function effectively.

[0097] See Figure 2As shown, the anti-collision protection device 3 includes an anti-collision pressure-sensitive tube 31, and the anti-collision pressure-sensitive tube 31 is installed on the suspended cross frame 133. As shown in the figure, it is fixedly connected to the suspended cross frame 133 by a pressure strip (pressed inside the anti-collision pressure-sensitive tube 31) and bolts. The function of the anti-collision pressure-sensitive tube 31 is that pressure sensitivity means that it can detect the pressure (generated when the aircraft and the anti-collision pressure-sensitive tube 31 are in contact) and transmit it to the controller, thereby preventing the bulk cargo loader from colliding with the aircraft. At the same time, combined with the aforementioned technical solution, since the anti-collision pressure-sensitive tube 31 is floatingly connected to the main structure of the bulk cargo loader (connected to the suspended cross frame 133), the anti-collision protection device 3 can exert its effectiveness.

[0098] See Figure 2 and Figure 5 and Figure 6 As shown, the structural features of the shielding plate 41 in the anti-pinch device 4 that maintain the first gap δ1 and the second gap δ2 are further shown. The anti-pinch device 4 also includes an anti-pinch bracket seat 42, a first connecting rod 43, a support portion 44, a second spring 45 and a guide device 46. A first mounting hole 411 is provided on the shielding plate 41. The guide device 46 includes a first guide column 461 and a second guide column 462. The anti-pinch bracket seat 42 includes a second mounting hole 421 and a third mounting hole 422. The two ends 431 and 432 of the first connecting rod 43 are rotatably connected to the first mounting hole 411 and the second mounting hole 421 respectively. The first guide column 461 is rotatably connected around the axis of the first mounting hole 411, and the second guide column 462 is rotatably connected around the axis of the third mounting hole 422. The two ends 451 and 452 of the second spring 45 are respectively sleeved on the first guide column 461 and the second guide column 462. The support portion 44 is connected to the shielding plate 41; see Figure 1 As shown, the support portion 44 abuts against the conveyor belt 2. Accordingly, the shielding plate 41 is floatingly connected to the main structure of the bulk cargo loader and can abut against the conveyor belt 2.

[0099] See Figure 2 and Figure 5 and Figure 6As shown, the anti-pinch device 4 further includes a second connecting rod 47; the shielding plate 41 is also provided with a fourth mounting hole 412. The axes of the first mounting hole 411, the fourth mounting hole 412, the second mounting hole 421, and the third mounting hole 422 are projected orthographically to form a parallelogram. In other words, the spacing between the first mounting hole 411 and the fourth mounting hole 412 is equal to the spacing between the second mounting holes 421 and the third mounting holes 422. The spacing between the two mounting holes on the second connecting rod 47 is equal to the spacing between the two mounting holes on the first connecting rod 43. The ends 471 and 472 of the second connecting rod 47 are rotatably connected to the third mounting hole 422 and the fourth mounting hole 412, respectively. The support portion 44 includes a roller 441 and a roller bracket 442. The roller bracket 442 includes a roller hole 443. The roller 441 rotates about a roller shaft 444. The roller bracket 442 is fixedly connected to the shielding plate 41, and the roller shaft 444 is rotatably connected to the roller hole 443. The roller 441 abuts against the conveyor belt 2. Accordingly, the floating connection structure between the shielding plate 41 and the main structure of the bulk cargo loader is further refined.

[0100] See Figures 2 to 6 As shown, the anti-collision bracket 13 includes a protruding support plate 131 and a fixed cross frame 132, a suspension block 134 is provided between the protruding support plate 131 and the fixed cross frame 132, the protruding support plate 131 is fixedly connected to the first end 11 of the conveying frame, the fixed cross frame 132 and the suspension block 134 and the protruding support plate 131 are stacked and connected in sequence; the anti-pinch bracket seat 42 is fixedly connected to the fixed cross frame 132.

[0101] The first gap δ1 is less than or equal to 4 mm. Therefore, typical bulk cargo accessories such as backpack straps will not fall into this first gap δ1, effectively preventing pinching. Of course, larger objects are also prevented from falling or getting stuck. The second gap δ2 is less than or equal to 4 mm. Therefore, when the bulk cargo loader approaches the aircraft, the anti-collision pressure-sensitive tube remains floating, without losing its anti-collision function. In other words, the first spring still functions, and the fixed cross frame and the floating cross frame can also rotate relative to each other. According to aircraft anti-collision requirements, this relative rotation is also minimal.

[0102] See Figure 1 As shown, the anti-collision protection device 3 is lower than the conveying plane 21 of the conveyor belt 2, and the baffle 41 includes a first surface 413 and a second surface 414, the first surface 413 is parallel to the conveying plane 21 of the conveyor belt, the first surface 413 is lower than the conveying plane 21 of the conveyor belt, the second surface 414 and the first surface 413 form an obtuse angle 415, and the second surface 414 bends toward the anti-collision protection device 3; the first surface 413 and the second surface 414 are integrally formed.

[0103] In terms of material selection, the shielding plate 41 is made of hard materials such as stainless steel or polyvinyl chloride plastics. These materials have certain strength, wear resistance, corrosion resistance, and will not scratch bulk luggage.

[0104] See Figure 7 and Figure 8 As shown, the anti-collision and anti-pinch device further includes an anti-pinch sensing device 5. The anti-collision bracket 13 includes an extended support plate 131, a fixed horizontal frame 132, and a suspended horizontal frame 133. The extended support plate 131 is fixedly connected to the first end 11 of the conveyor frame, the fixed horizontal frame 132 is connected to the extended support plate 131, and the suspended horizontal frame 133 is rotatably connected to the fixed horizontal frame 132. The anti-pinch sensing device 5 is mounted on the fixed horizontal frame 132 and is located between the fixed horizontal frame 132 and the shielding plate 41.

[0105] The anti-pinch sensing device 5 includes a first sensing switch 51, which is a normally closed switch. The conveyor belt 2 is driven by a belt motor and has a belt drive power supply. The anti-pinch sensing device 5 also includes an anti-pinch circuit, which includes the belt motor, the belt drive power supply, and the first sensing switch 51 connected in series. Alternatively, a second embodiment of the anti-pinch circuit is provided, which mainly realizes the separation of the power circuit and the control circuit. The control circuit includes a control relay, and the control relay includes a coil of the control switch and contacts of the control switch. The anti-pinch circuit includes the coil of the control switch of the belt motor and the first sensing switch 51 in series, thereby realizing part of the function of the control circuit, and the contacts of the control switch, the belt motor and the belt drive power supply are connected in series, thereby realizing part of the function of the power circuit.

[0106] Accordingly, when an object is trapped in the first gap δ, the shielding plate 41 slightly moves, triggering the first sensor switch 51. This disconnects the first sensor switch 51 in the anti-pinch circuit, causing the belt drive motor to stop. The belt then stops conveying the object. A worker removes the trapped object from the gap, and the first sensor switch 51 returns to its closed state. The belt drive motor resumes conveying the object.

[0107] See Figure 7 and Figure 9 As shown, the anti-collision and anti-pinch device further includes an anti-collision sensing device 6. The anti-collision bracket 13 includes an extended support plate 131, a fixed cross frame 132, and a suspended cross frame 133. The extended support plate 131 is fixedly connected to the first end 11 of the conveyor frame, the fixed cross frame 132 is connected to the extended support plate 131, and the suspended cross frame 133 is rotatably connected to the fixed cross frame 132. The anti-collision sensing device 6 is mounted on the fixed cross frame 132 and is located between the fixed cross frame 132 and the anti-collision protection device 3.

[0108] The anti-collision sensing device 6 includes a second induction switch 61. The conveyor frame is driven by a traveling mechanism having a traveling mechanism start-stop device. The anti-collision sensing device 6 also includes an anti-collision circuit, which includes the traveling mechanism start-stop device and the second induction switch connected in series.

[0109] The traveling mechanism includes a traveling drive motor and a braking device. Accordingly, the bulk cargo loader can be an electric bulk cargo loader or a towed bulk cargo loader (with an electric trailer). The braking device includes a braking device actuator. The braking device is an electronically controlled hydraulic braking system, and the braking device actuator is a solenoid valve or an electric pump. The second inductive switch 61 includes a normally closed contact and a normally open contact. The traveling mechanism start-stop device includes a starting circuit branch and a braking circuit branch. The starting circuit branch, the traveling drive motor, and the normally closed contact are connected in series. The braking circuit branch, the braking device actuator, and the normally open contact are connected in series.

[0110] Accordingly, the second induction switch 61 is used to sense the distance between it and the anti-collision protection device 3. When the distance becomes smaller, the second induction switch 61 is actuated. The second induction switch 61 includes a normally closed contact and a normally open contact. When the second induction switch 61 is actuated, the normally closed contact is disconnected and the normally open contact is opened, thereby simultaneously controlling the start branch to be cut off and the brake branch to be turned on.

[0111] The traveling mechanism includes a traveling drive engine and a braking device. Accordingly, the bulk cargo loader can be an internal combustion bulk cargo loader or a towed bulk cargo loader (the trailer is internal combustion). The traveling drive engine also includes a start-stop control switch and a start-stop control coil. The braking device includes a braking device actuator. The braking device is an electronically controlled hydraulic braking system. The braking device actuator is a solenoid valve or an electric pump. The second induction switch 61 includes a normally closed contact and a normally open contact. The traveling mechanism start-stop device includes a start-stop circuit branch and a brake circuit branch. The start-stop circuit branch and the start-stop control coil are connected in series with the normally closed contact. The brake circuit branch and the brake device actuator are connected in series with the normally open contact.

[0112] Accordingly, when the anti-collision protection device 3 contacts the aircraft, the distance between the protection device 3 and the second induction switch 61 changes, triggering the movement of the second induction switch 61, thereby controlling the engine or motor of the bulk cargo loader's traveling mechanism to stop rotating, and simultaneously triggering the braking device to brake, so that the bulk cargo loader stops, thereby achieving the purpose of anti-collision.

[0113] The above is the main technical solution of the embodiment provided by the present invention, which shows the connection relationship and position relationship between components, as well as the main technical parameter characteristics. The technical effect that can be achieved by the present invention is that: through a series of floating support mechanisms, the baffle 41 is floatingly set on the conveyor belt 2 and the anti-collision protection device 3, and by setting the first gap δ1 and the second gap δ2, the following effects can be achieved: when transporting goods, it prevents bulk goods (including backpacks, suitcases, wrapping cartons, etc.) from falling into the gap, getting stuck in the gap, or being clamped on the moving parts; when moving close to the aircraft, it prevents the main structure of the equipment from colliding with the aircraft. In addition, the floating follow-up system can fit the main structure of the equipment well through the force control device, and can ensure that the first gap δ1 changes within the permitted range during small movements, and can also ensure that the first gap δ2 exists, thereby preventing the anti-collision function of the anti-collision protection device 3 from failing.

[0114] The above specific embodiments and accompanying drawings are merely illustrative of the technical solutions and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art may modify or alter the above embodiments within the scope of the claims without violating the technical principles and spirit of the present invention, and all such modifications and variations shall fall within the scope of protection of the present invention.

Claims

1. An anti-collision and anti-pinch device, characterized in that: include: A conveying frame, wherein a first end of the conveying frame is provided with a reel and an anti-collision bracket; A conveyor belt, wherein the conveyor belt is sleeved outside the reel, and the rotation of the reel drives the conveyor belt to move; an anti-collision protection device, the anti-collision protection device being mounted on the anti-collision bracket; an anti-clamping device, the anti-clamping device being mounted on the anti-collision bracket, the anti-clamping device comprising a shielding plate, the shielding plate being located between the conveyor belt and the anti-collision protection device, the shielding plate having a first gap with the conveyor belt, and a second gap with the shielding plate and the anti-collision protection device; The anti-collision bracket includes an extended support plate, a fixed cross frame and a suspended cross frame; the extended support plate is fixedly connected to the first end of the conveying frame; the fixed cross frame is connected to the extended support plate; the suspended cross frame is rotatably connected to the fixed cross frame; A suspension block is provided between the protruding support plate and the fixed cross frame, and the suspension block is a rubber pad or a laminated spring; The fixed horizontal frame is provided with a first guide rod and a first spring. The first spring is sleeved in the first guide rod, and the first spring is against the suspension horizontal frame.

2. The anti-collision and anti-pinch device according to claim 1, characterized in that: The anti-collision protection device includes an anti-collision pressure-sensitive tube, which is installed on the suspended cross frame.

3. The anti-collision and anti-pinch device according to claim 1, characterized in that: The anti-pinch device further includes an anti-pinch bracket seat, a first connecting rod, a support portion, a second spring and a guide device; The shielding plate is provided with a first mounting hole; The guide device comprises a first guide post and a second guide post; The anti-pinch bracket seat includes a second mounting hole and a third mounting hole; Two ends of the first connecting rod are rotatably connected to the first mounting hole and the second mounting hole respectively; The first guide post is rotatably connected around the axis of the first mounting hole, the second guide post is rotatably connected around the axis of the third mounting hole, and both ends of the second spring are respectively sleeved on the first guide post and the second guide post; The supporting portion is connected to the shielding plate, and the supporting portion is against the conveyor belt.

4. The anti-collision and anti-pinch device according to claim 3, characterized in that: The anti-pinch device further comprises a second connecting rod; the shielding plate is further provided with a fourth mounting hole; The axes of the first mounting hole, the fourth mounting hole, the second mounting hole, and the third mounting hole are projected orthographically to form a parallelogram; Two ends of the second connecting rod are rotatably connected to the third mounting hole and the fourth mounting hole respectively; The support portion includes a roller and a roller bracket, the roller bracket includes a roller hole, the roller rotates around a roller shaft, the roller bracket is fixedly connected to the shielding plate, and the roller shaft is rotatably connected to the roller hole; The roller abuts against the conveyor belt.

5. The anti-collision and anti-pinch device according to claim 3 or 4, characterized in that: The anti-collision bracket includes an extended support plate and a fixed cross frame, a suspension block is provided between the extended support plate and the fixed cross frame, the extended support plate is fixedly connected to the first end of the conveying frame, and the fixed cross frame, the suspension block and the extended support plate are sequentially stacked and connected; The anti-pinch bracket seat is fixedly connected to the fixed horizontal frame.

6. The anti-collision and anti-pinch device according to claim 1, characterized in that: The first gap is less than or equal to 4 mm; the second gap is less than or equal to 4 mm.

7. The anti-collision and anti-pinch device according to claim 1, characterized in that: The anti-collision protection device is lower than the conveying plane of the conveyor belt, and the baffle includes a first surface and a second surface, the first surface is parallel to the conveying plane of the conveyor belt, the first surface is lower than the conveying plane of the conveyor belt, the second surface forms an obtuse angle with the first surface, and the second surface is bent toward the anti-collision protection device; the first surface and the second surface are integrally formed.

8. The anti-collision and anti-pinch device according to claim 1, characterized in that: The shielding plate is made of a hard material, and the hard material is stainless steel or polyvinyl chloride plastic.

9. The anti-collision and anti-pinch device according to claim 1, characterized in that: It also includes an anti-pinch sensing device; The anti-collision bracket includes a protruding support plate, a fixed cross frame and a suspended cross frame, the protruding support plate is fixedly connected to the first end of the conveying frame, the fixed cross frame is connected to the protruding support plate, and the suspended cross frame is rotatably connected to the fixed cross frame; The anti-pinch sensing device is installed on the fixed horizontal frame and is located between the fixed horizontal frame and the shielding plate.

10. The anti-collision and anti-pinch device according to claim 9, characterized in that: The anti-pinch sensing device includes a first sensing switch, which is a normally closed switch; The conveyor belt is driven by a belt motor and has a belt drive power supply; The anti-pinch sensing device also includes an anti-pinch circuit; The anti-pinch circuit includes the belt motor, the belt drive power supply, and the first induction switch connected in series, or the anti-pinch circuit includes the coil of the control switch of the belt motor and the first induction switch connected in series and the contacts of the control switch, the belt motor and the belt drive power supply connected in series.

11. The anti-collision and anti-pinch device according to claim 1, characterized in that: It also includes anti-collision sensing devices; The anti-collision bracket includes a protruding support plate, a fixed cross frame and a suspended cross frame, the protruding support plate is fixedly connected to the first end of the conveying frame, the fixed cross frame is connected to the protruding support plate, and the suspended cross frame is rotatably connected to the fixed cross frame; The anti-collision sensing device is installed on the fixed horizontal frame and is located between the fixed horizontal frame and the anti-collision protection device.

12. The anti-collision and anti-pinch device according to claim 11, characterized in that: The anti-collision sensing device includes a second sensing switch; The conveyor frame is driven by a traveling mechanism, and the traveling mechanism is provided with a traveling mechanism start-stop device; The anti-collision sensing device further includes an anti-collision circuit, and the anti-collision circuit includes the walking mechanism start-stop device and the second sensing switch connected in series.

13. The anti-collision and anti-pinch device according to claim 12, characterized in that: The travel mechanism includes a travel drive motor and a brake device, the brake device includes a brake device actuator, the brake device is an electronically controlled hydraulic brake system, and the brake device actuator is a solenoid valve or an electric pump; The second induction switch includes a normally closed contact and a normally open contact; The walking mechanism start-stop device comprises a starting circuit branch and a braking circuit branch; The starting circuit branch, the travel drive motor and the normally closed contact are connected in series; The brake circuit branch, the brake device actuator and the normally open contact are connected in series.

14. The anti-collision and anti-pinch device according to claim 12, characterized in that: The traveling mechanism comprises a traveling drive engine and a braking device; The travel drive engine also includes a start-stop control switch and a start-stop control coil; The braking device includes a braking device actuator, the braking device is an electronically controlled hydraulic braking system, and the braking device actuator is a solenoid valve or an electric pump; The second induction switch includes a normally closed contact and a normally open contact; The walking mechanism start-stop device comprises a start-stop circuit branch and a brake circuit branch; The start-stop circuit branch, the start-stop control coil and the normally closed contact are connected in series; The brake circuit branch, the brake device actuator and the normally open contact are connected in series.

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