Dustproof device for carriage and tarpaulin folding and unfolding method of dustproof device

Abstract

The invention provides a dustproof device for a carriage and a tarpaulin folding and unfolding method of the dustproof device, and relates to the field of carriage dust prevention, according to the scheme, the dustproof device comprises tarpaulin and further comprises two supporting plates and two driven sliding block assemblies, the supporting plates are used for being arranged on the upper portions of the two sides of the carriage, and each driven sliding block assembly comprises a plurality of driven sliding blocks moving along sliding grooves; the driving sliding block is connected with a driving assembly, the driving sliding block can move in the sliding groove in a reciprocating mode, and the storage box is used for storing the driven sliding block; and the jacking mechanism can lift the driven sliding blocks into the storage box, and the jacked driven sliding blocks are separated from the driving sliding blocks and the adjacent driven sliding blocks. The tarpaulin can be prevented from being stuck in folding and unfolding, and the service life is long.

Description

Technical Field

[0001] The invention relates to the field of dust prevention for carriages, and in particular to a dust prevention device for carriages and a tarpaulin folding and unfolding method thereof. Background Art

[0002] In the prior art, commercial oil and gas vehicles that transport powders and slags must be covered with a tarpaulin after the cargo box is filled, and the tarpaulin must be fixed around the sides of the cargo box to prevent scattering, loss or environmental pollution. Usually, powder transport vehicles are relatively long and have a large loading capacity. Operators manually pull the cargo and fix it around, which is unsafe, time-consuming and labor-intensive.

[0003] Prior art: A Chinese utility model patent with authorization announcement number CN 216783367 U provides an electric tarpaulin machine for trucks, comprising a bracket and a driving assembly for providing power for the movement of the tarpaulin, wherein the driving assembly is arranged on the bracket, and a transmission member is arranged on the bracket, and the transmission member is connected to the driving assembly, and the transmission member is used to be connected to the tarpaulin; the driving assembly comprises a first motor, and the first motor is a double-axis motor, and the first motor is arranged on one side of the bracket, and both ends of the first motor are connected to a connecting rod through a universal joint, and the connecting rod is rotatably arranged on the bracket, and a driving wheel is arranged on the connecting rod, and a rope is arranged on the driving wheel, and a driven wheel is rotatably arranged on a side of the bracket away from the driving wheel, and the rope is wound around the driven wheel.

[0004] With the above solution, on the one hand, the steel wires are disordered in the smaller cavity, causing the wires to bulge locally, which creates resistance when in contact with the drive wheel, making the connecting rod unable to turn or creating a lot of resistance, causing the tarpaulin to get stuck; on the other hand, during the use of the steel wire rope, if lubrication and maintenance are not timely, small knots and other objects generated by long-term friction will affect the movement, causing the tarpaulin to be unsmoothly retracted and released, affecting its use. Summary of the invention

[0005] In order to solve the technical problem of jamming of tarpaulin in the above-mentioned prior art, the present invention provides a dustproof device for a carriage and a tarpaulin folding and unfolding method thereof, which can avoid jamming of tarpaulin folding and unfolding and prolong the service life of the tarpaulin.

[0006] In a first aspect, the present invention provides a dustproof device for a carriage to solve the above technical problems, comprising a tarpaulin and further comprising: Two support plates, the support plates are used to be arranged at the upper part of both sides of the carriage, the top of the support plates are provided with slide grooves, along the moving direction of the tarpaulin when the tarpaulin is folded, the front interlayer of the support plates is provided with mounting grooves, along the moving direction of the tarpaulin when the tarpaulin is folded, the front ends of the tarpaulin are connected to the support plates on the corresponding sides; Two sets of driven slider assemblies, each of which includes a plurality of driven sliders moving along the slide groove, wherein the plurality of driven sliders are detachably connected to each other, and along the moving direction of the tarpaulin when the tarpaulin is folded, the last driven slider is connected to the end of the tarpaulin; An active slider, the active slider is connected to a driving assembly, the active slider can reciprocate in the slide slot, and the rear end of the active slider is detachably connected to the corresponding driven slider along the moving direction when the tarpaulin is folded; A storage box, the storage box is arranged at the front end of the support plate and is opposite to the mounting groove, the active slider can move through the lower part of the storage box, and the storage box is used to store the driven slider; A lifting mechanism is arranged in the installation groove, and the lifting mechanism can lift the driven slider into the storage box, and the lifted driven slider is separated from the active slider and the adjacent driven slider.

[0007] Through the cooperation of the lifting mechanism, the driven slider assembly and the active slider, the present invention can pull back the driven slider assembly and store it in the storage box when the tarpaulin is folded up. When the tarpaulin needs to be released, the driven slider assembly is pushed to move along the slide groove to drive the tarpaulin to unfold. Compared with the prior art, there is no disorder of the wire rope and mutual friction between multiple driven sliding rings. It is smooth to use without jamming and has a long service life.

[0008] Furthermore, along the moving direction when the tarpaulin is folded, a connecting part 1 is provided at the upper front end of the driven slider, a connecting part 2 is provided at the lower rear end of the driven slider, a connecting pin is provided on the connecting part 1, a connecting hole is provided on the lower surface of the connecting part 2, and the connecting pin can be inserted into the connecting hole; a connecting plate is swingably provided at the upper rear end of the active slider, a reset spring is provided between the connecting plate and the active slider, and a groove is provided on the lower surface of the connecting plate, and the connecting pin can be inserted into the groove.

[0009] Furthermore, the connecting portion is provided with a pin hole, the pin hole is provided with the connecting pin, a lifting spring is provided between the connecting pin and the bottom of the pin hole, and a guide surface is provided at the front of the connecting pin, and the upper part of the guide surface is inclined backward.

[0010] The present invention provides a lifting spring and a guide surface, so that the connecting pin can be easily inserted into the connecting hole and the groove, thereby ensuring reliable automatic connection between the active slider and the driven slider and between two adjacent driven sliders.

[0011] Furthermore, the connecting pin is made of rubber material.

[0012] The present invention uses a connecting pin made of rubber material so that the connecting pin can be bent and deformed under the push-pull action of the connecting plate and the connecting part 2 to be more easily connected or disconnected, thereby further ensuring reliable automatic connection.

[0013] Furthermore, a magnetic block 1 is arranged at the rear end of the active slider, and a magnetic block 2 and a magnetic block 3 are arranged at the front and rear ends of the driven slider respectively. The magnetic properties of magnetic block 2 and magnetic block 3 are opposite, and the magnetic properties of magnetic block 1 and magnetic block 2 are opposite.

[0014] Furthermore, entrances are respectively provided at both ends of the lower portion of the storage box, the width of the storage box is greater than the length of the driven slider, and when the driven slider is located in the slide groove at the bottom of the storage box, adjacent parts of the driven slider are located outside the storage box.

[0015] The present invention limits the width of the storage box, which ensures, on the one hand, that the driven slider reduces the lifting resistance, and, on the other hand, ensures that when the driven slider is separated, the storage box plays a limiting role to avoid being dragged along.

[0016] Furthermore, the driving assembly includes a driving motor, which drives a driving shaft. The driving shaft is rotatably arranged between the two support plates. Driving gears are respectively arranged at both ends of the driving shaft. The driving gear is meshed with a driven gear. A connecting rod is arranged on the driven gear. The end of the connecting rod is rotatably connected to a swing arm, and the swing arm is rotatably connected to the front end of the active slider on the corresponding side.

[0017] The present invention realizes the reciprocating movement of the active sliding block through a connecting rod mechanism, and has a simple and compact structure.

[0018] Furthermore, the lifting mechanism includes a gear shaft, which is rotatably disposed on the inner wall of the support plate, a transmission belt is disposed between one end of the gear shaft and the driven gear, a cam is coaxially and rotatably disposed on the other end of the gear shaft, the cam is disposed in the mounting groove, a transmission key is disposed between the cam and the gear shaft, the transmission key is connected to a driving member, and the driving member can drive the transmission key to move axially.

[0019] The present invention realizes intermittent operation of the lifting mechanism by arranging a driving member to drive the transmission key to move back and forth, thereby avoiding interference and jamming when the driven sliding block moves.

[0020] Furthermore, the driving member includes an electromagnet, which is arranged in the mounting cavity of the cam. The electromagnet and the transmission key are connected by a telescopic spring. When the driving member is energized, the transmission key retracts into the mounting cavity, and the gear shaft can rotate relative to the cam.

[0021] In a second aspect, the present invention further provides a method for retracting and releasing a tarpaulin of a vehicle compartment dustproof device, using the above vehicle compartment dustproof device, comprising the following steps: S01: When the tarpaulin is folded, the active slider moves forward by a set distance, driving the driven slider assembly to move forward; S02: When the driven slider connected to the active slider completely enters the lower part of the storage box, the cam of the lifting mechanism starts to rotate from the initial position, gradually lifting the driven slider located above it upward, so that its two ends are separated from the active slider and the adjacent driven slider and enter the storage box; S03: The active slider moves to the end point and then moves backward into the storage box, and generates sliding friction with the driven slider that has just entered the storage box. The cam rotates to the initial position and stops rotating; S04: the active slider moves backwards by a set distance and then automatically connects with the driven slider outside the storage box; S05: The active slider moves forward, driving the driven slider assembly to move forward; S06: repeating steps S02 to S04 until the second to last driven slider in the driven slider group enters the storage box, the active slider is located at the front of the storage box and is still connected to the second to last driven slider, and the cam rotates to a position contacting the lower surface of the second driven slider and no longer rotates; S07: When releasing the tarpaulin, the active slider moves backward, pushing the second-to-last driven slider to move to the outside of the storage box, and the cam remains stationary; S08: The active slider moves forward in the reverse direction by a set distance to the front of the storage box, and the third to last driven slider falls on the upper part of the cam under the action of gravity; S09: the active slider moves backward, pushing the third-to-last driven slider to move to the outside of the storage box and connect with the second-to-last driven slider; S10: Repeat steps S08 to S09 until all corresponding driven sliders are pushed out of the storage box, the active slider remains connected to the first driven slider, and the cam rotates to the initial position.

[0022] It can be seen from the above technical solutions that the present invention has the following advantages: The present invention provides a dustproof device for a carriage and a tarpaulin folding and unfolding method thereof. Through the cooperation of a lifting mechanism, a driven slider assembly and an active slider, when the tarpaulin is folded, the driven slider assembly can be pulled back and the driven slider can be disconnected and stored in a storage box. When the tarpaulin needs to be released, the driven slider assembly is pushed to move along the slide groove to drive the tarpaulin to unfold and realize the restoration of the connection of each driven slider. Compared with the prior art, there is no disorder of the wire rope and the mutual friction between multiple driven sliding rings. The use is smooth and has no jamming, and the service life is long. By arranging a lifting spring and a guide surface, it is convenient for the connecting pin to extend into the connecting hole and the groove to ensure that the active slider is connected to the driven slider and Reliable automatic connection between two adjacent driven sliders; by using connecting pins made of rubber material, the connecting pins can be bent and deformed under the push-pull action of the connecting plate and the connecting part 2, making it easier to connect or detach, further ensuring reliable automatic connection; by limiting the width of the storage box, on the one hand, the driven slider is guaranteed to reduce the lifting resistance, and on the other hand, the storage box plays a limiting role when the driven slider is separated to avoid linkage; the reciprocating movement of the active slider is achieved through a connecting rod mechanism, and the structure is simple and compact; by setting a driving member to drive the transmission key to move back and forth, the jacking mechanism can work intermittently, avoiding interference when the driven slider moves and causing jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 The structure of the first embodiment of the present invention is shown in FIG. Figure 1 .

[0025] Figure 2 The structure of the first embodiment of the present invention is shown in FIG. Figure 2 (The cam is in the initial position).

[0026] Figure 3 for Figure 2 Center A is an enlarged view.

[0027] Figure 4 The structure of the first embodiment of the present invention is shown in FIG. Figure 3 (Status diagram of the driven slider when the tarpaulin is recovered and lifted).

[0028] Figure 5 The structure of the first embodiment of the present invention is shown in FIG. Figure 4 (Status diagram of tarpaulin being released or tarpaulin being retracted).

[0029] Figure 6It is a schematic diagram of the assembly structure of the driving assembly, the active slider, the lifting mechanism and the driven slider assembly in the first specific implementation mode of the present invention.

[0030] Figure 7 It is a schematic structural diagram of an active slider in a first specific implementation mode of the present invention.

[0031] Figure 8 It is a schematic structural diagram of a driven slider in a first specific implementation mode of the present invention.

[0032] In the figure, 1. tarpaulin; 2. support plate; 201. slide groove; 3. active slider; 301. connecting plate; 302. groove; 4. driving assembly; 401. connecting rod; 402. swing arm; 403. driven gear; 404. driving shaft; 405. driving motor; 5. storage box; 6. driven slider; 601. connecting pin; 602. lifting spring; 603. connecting hole; 7. lifting mechanism; 701. cam; 702. transmission key; 703. gear shaft. DETAILED DESCRIPTION

[0033] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent. Specific implementation method 1 like Figures 1 to 5As shown, this specific embodiment provides a dust-proof device for a carriage, including a tarpaulin 1, two support plates 2, two groups of driven slider assemblies, two active sliders 3, a driving assembly 4 and a lifting mechanism 7; the support plate 2 is used to be arranged on the upper part of both sides of the carriage, a slide groove 201 is arranged on the top of the support plate 2, and a slide rail is arranged on the slide groove 201, along the moving direction of the tarpaulin 1 when the tarpaulin 1 is folded, a mounting groove is arranged in the front interlayer of the support plate 2, along the moving direction of the tarpaulin when the tarpaulin is folded, the front two ends of the tarpaulin 1 are connected to the support plates 2 on the corresponding sides, and an inverted U-shaped support frame is arranged inside the tarpaulin 1, and the two ends of the support frame can move respectively along the guide groove on the inner side of the support plate 2, and the guide groove is arranged in parallel on the upper part of the slide groove 201; the driven slider assembly includes a plurality of driven sliders 6, and the driven slider assembly moves along the slide rail of the slide groove 201, The driven sliders 6 are detachably connected to each other, and along the moving direction of the tarpaulin 1 when the tarpaulin 1 is folded, the last driven slider 6 is connected to the tarpaulin 1 by a wire rope or a chain, and a dust-proof brush is provided on the slide groove 201 to prevent dust and other debris from entering; the active slider 3 is connected to the driving component 4, and the active slider 3 can reciprocate in the slide groove 201, and along the moving direction of the tarpaulin 1 when the tarpaulin 1 is folded, the rear end of the active slider 3 is detachably connected to the corresponding driven slider 6; the storage box 5 is arranged at the front end of the support plate 2 and is opposite to the mounting groove. The active slider 3 can move through the lower part of the storage box 5, and the storage box 5 is used to store the driven slider 6; the lifting mechanism 7 is arranged in the mounting groove, and the lifting mechanism 7 can lift the driven slider 6 into the storage box 5, and the lifted driven slider 6 is separated from the active slider 3 and the adjacent driven slider 6.

[0035] In this specific embodiment, the jacking mechanism 7, the driven slider assembly and the active slider 3 cooperate with each other, and the active slider 3 is used to push and pull the driven slider assembly to realize the deployment and recovery of the tarpaulin 1, and each driven slider 6 enters the storage box 5 for storage under the action of the jacking mechanism 7. Compared with the prior art of using wire ropes for retraction and release, there is no problem of wire rope disorder and jamming caused by mutual friction between multiple driven slip rings. It is smooth to use and has a long service life.

[0036] like Figures 6 to 8As shown, in order to realize the automatic connection between the driven sliders 6 and between the driven slider 6 and the active slider 3, in this specific embodiment, along the moving direction of the tarpaulin 1 when the folded tarpaulin is folded, the upper front end of the driven slider 6 is provided with a connecting portion 1, and the lower rear end of the driven slider 6 is provided with a connecting portion 2, the connecting portion 1 is provided with a connecting pin 601, and the lower surface of the connecting portion 2 is provided with a connecting hole 603, and the connecting pin 601 can be inserted into the connecting hole 603. The upper rear end of the active slider 3 is swingably provided with a connecting plate 301. Specifically, the rear end of the active slider 3 is provided with a groove, and the connecting plate 301 is provided with a connecting plate 301. Specifically, the rear end of the active slider 3 is provided with a groove, and the connecting plate 301 is provided with a connecting plate 301. One end of the plate 301 is rotatably connected to the groove through a pin shaft, and the other end of the connecting plate 301 extends out of the groove. A return spring is arranged between the connecting plate 301 and the active slider 3, and a groove 302 is arranged on the lower surface of the connecting plate 301, and the connecting pin 601 can extend into the groove 302; preferably, in order to ensure reliable automatic connection, a pin hole is arranged on the connecting portion, and a connecting pin 601 is arranged on the pin hole, and a lifting spring 602 is arranged between the connecting pin 601 and the bottom of the pin hole, and a guide surface is arranged on the front of the connecting pin 601, and the upper part of the guide surface is inclined backward, and the connecting pin 601 The active slider 3 is made of rubber material; when the active slider 3 moves toward the driven slider 6 to connect with the driven slider 6, the connecting plate 301 is lifted up by the connecting pin 601, and the connecting pin 601 is pressed down by the lifting spring 602. As the two are getting closer, the connecting pin 601 is stuck on the top of the connecting pin 601 under the action of the reset spring and the lifting spring 602, so as to realize the connection between the active slider 3 and the driven slider 6; when the driven slider 6 is pushed and moved by the active slider 3, the connecting part 2 is constantly close to the adjacent connecting part 1, and the connecting pin 601 is pressed down by the connecting part ... As the connecting hole 603 moves to the upper part of the connecting pin 601, it bounces up into the connecting hole 603 under the action of the lifting spring 602, thereby realizing the connection between the driven sliders 6; when the active slider 3 is separated from the driven slider 6, the driven slider 6 is vertically lifted up and drives the connecting plate 301 to rotate. When the driven slider 6 is raised to a certain height, the connecting plate 301 has a greater force on the connecting pin 601. As the connecting pin 601 continues to rise, the force increases, elastic deformation occurs, and it pops out of the groove 302 of the connecting plate 301 to realize separation.

[0037] like Figures 1 to 5 As shown, in order to enable the driven slider 6 in the storage box 5 to avoid friction with the storage box 5 when lifting or lowering, in the present specific embodiment, entrances are respectively provided at both ends of the lower part of the storage box 5, and the storage box 5 straddles the support plate 2. The width of the storage box 5 is greater than the length of the driven slider 6 to avoid friction with the end of the driven slider 6; preferably, the width of the storage box 5 is greater than the length of the driven slider 6 by 5mm~10mm, which can ensure that when the driven slider 6 is located in the slide groove 201 at the bottom of the storage box 5, the adjacent driven slider 6 is partially located outside the storage box 5, ensuring that when the driven slider 6 is separated, the storage box 5 plays a limiting role to avoid being dragged along and causing falling off.

[0038] like Figure 6 As shown, in order to realize the reciprocating movement of the active slider 3, in this specific embodiment, the driving component 4 includes a driving motor 405, and the driving motor 405 drives a driving shaft 404. The driving shaft 404 is rotatably arranged between the two support plates 2 through a bearing, and driving gears are respectively arranged at both ends of the driving shaft 404. The driving gear is meshed with a driven gear 403, and the driven gear 403 is rotatably arranged on the corresponding support plate 2 through a bearing. A connecting rod 401 is arranged on the end surface of the driven gear 403, and the end of the connecting rod 401 is rotatably connected to a swing arm 402, and the swing arm 402 is rotatably connected to the front end of the active slider 3 on the corresponding side. Specifically, a groove is opened at the front end of the active slider 3, and a pin shaft is rotatably arranged in the groove. The end of the swing arm 402 is connected to the pin shaft, and the circular motion is converted into a linear reciprocating motion through the crank-connecting rod 401 mechanism, and the structure is compact; in this specific embodiment, the driving motor 405 adopts a servo motor, which can accurately control the reciprocating distance of the active slider 3 to avoid interference during jacking.

[0039] like Figures 2 to 5As shown, in order to avoid interference between the lifting mechanism 7 and the movement of the driven slider 6, the lifting mechanism 7 needs to be rotated after the driven slider 6 is in place. To this end, in this specific embodiment, the lifting mechanism 7 can adopt the following specific structure: the lifting mechanism 7 includes a gear shaft 703, which is rotatably arranged on the inner wall of the support plate 2 through a bearing, and a transmission belt is arranged between one end of the gear shaft 703 and the driven gear 403 to realize sharing of power components with the active slider 3, and a cam 701 is coaxially and rotatably arranged on the other end of the gear shaft 703, and the cam 701 is arranged in the installation groove, and the cam 701 and A transmission key 702 is arranged between the gear shafts 703, and the transmission key 702 is connected to a driving member, which can drive the transmission key 702 to move axially; further, the driving member includes an electromagnet, and the driving member is arranged in the installation cavity of the cam 701. The electromagnet and the transmission key 702 are connected by a telescopic spring. When the driving member is energized, the transmission key 702 retracts into the installation cavity, and the gear shaft 703 can rotate relative to the cam 701; after the tarpaulin 1 is released, the cam 701 rotates to the initial position, at which time the highest point of the cam 701 is flush with the bottom surface of the slide groove 201, and the eccentric part is located on one side, which can support the storage box 5, and does not interfere with the movement of the active slider 3. When the tarpaulin 1 needs to be recovered, after the driven slider 6 completely enters the storage box 5 (that is, at this moment, when the active slider 3 moves the set distance, there is a vacant time when the driving motor 405 changes direction, and the active slider 3 has not moved in the reverse direction), the electromagnet is powered off, the telescopic spring releases the potential energy, the transmission key 702 enters the groove of the gear shaft 703 and the cam 701, and connects the two. The gear shaft 703 drives the cam 701 to rotate from the initial position, and gradually lifts the driven slider 6; when the active slider 3 starts to move backward, the cam 701 continues to rotate, and gradually The driven slider 6 gradually separates from the lifted driven slider 6, and the driven slider 6 falls on the active slider 3 entering the storage box 5 to generate sliding friction. When the cam 701 rotates to the initial position, the electromagnet is energized, and the transmission key 702 retracts into the cam 701 and no longer rotates with the gear shaft 703. The working frequency and speed of the electromagnet (that is, the transmission ratio of the belt drive) are adjusted through experiments to match the movement of the active slider 3. When the tarpaulin 1 needs to be unfolded, the driven sliders 6 need to be pushed out one by one. In order to avoid the driven slider 6 being unable to connect with the active slider 3, during this process, the cam 701 needs to be rotated to the initial position for support. Specific implementation method 2 This specific embodiment provides a dust-proof device for a carriage, which has a structure basically the same as that of the specific embodiment 1, except that: a magnet 1 is provided at the rear end of the active slider 3, and a magnet 2 and a magnet 3 are provided at the front and rear ends of the driven slider 6, respectively. The magnetic properties of magnet 2 and magnet 3 are opposite, and the magnetic properties of magnet 1 and magnet 2 are opposite; the suction force of magnet 1 and magnet 2, and the suction force of magnet 2 and magnet 3, on the one hand, can overcome the friction force of the slide groove 201, and the slider assembly can slide under the pull of the active slider 3, and on the other hand, can be adsorbed and disconnected under the action of the lifting mechanism 7.

[0041] Preferably, in order to better play the role of limiting the storage box 5 to prevent the chain reaction, the entrance of the storage box 5 is only within 1 mm higher than the height of the driven slider 6, which effectively prevents the adjacent driven slider 6 from being lifted up.

[0042] When the tarpaulin 1 is folded, the active slider 3 adsorbs the driven slider assembly and moves toward the front end. When the active slider 3 moves a set distance, the driven slider 6 enters under the storage box 5, and the lifting mechanism 7 rises to disconnect the magnetic adsorption. The active slider 3 approaches the driven slider 6 outside the storage box 5 and is connected by magnetic adsorption.

[0043] In this specific implementation, magnetic block 1, magnetic block 2 and magnetic block 3 are installed in an embedded manner. Specific implementation method three This specific embodiment provides a method for retracting and unfolding a tarpaulin 1 of a vehicle compartment dustproof device, using the vehicle compartment dustproof device of specific embodiment 1 or specific embodiment 2, comprising the following steps: S01: When the tarpaulin 1 is folded, the active slider 3 moves forward by a set distance, driving the driven slider assembly to move forward; S02: When the driven slider 6 connected to the active slider 3 completely enters the lower part of the storage box 5, the cam 701 of the lifting mechanism 7 starts to rotate from the initial position, gradually lifting the driven slider 6 located above it upward, so that both ends of the driven slider 6 are separated from the active slider 3 and the adjacent driven slider 6 and enter the storage box 5; S03: the active slider 3 moves to the end point and then moves backward into the storage box 5, and generates sliding friction with the driven slider 6 that has just entered the storage box 5, and the cam 701 rotates to the initial position and then stops rotating; S04: the active slider 3 moves backwards by a set distance and then automatically connects with the driven slider 6 outside the storage box 5; S05: The active slider 3 moves forward, driving the driven slider assembly to move forward; S06: repeating steps S02 to S04 until the penultimate driven slider 6 in the group of driven sliders 6 enters the storage box 5, the active slider 3 is located at the front of the storage box 5 and is still connected to the penultimate driven slider 6, and the cam 701 rotates to a position in contact with the lower surface of the second driven slider 6 and stops rotating; S07: When the tarpaulin 1 is released, the active slider 3 moves backward, pushing the penultimate driven slider 6 to move to the outside of the storage box 5, and the cam 701 remains stationary; S08: The active slider 3 moves forward in the reverse direction by a set distance to the front of the storage box 5, and the third to last driven slider 6 falls on the upper part of the cam 701 under the action of gravity; S09: the active slider 3 moves backward, pushing the third-to-last driven slider 6 to move to the outside of the storage box 5 and connect with the second-to-last driven slider; S10: Repeat steps S08 to S09 until all corresponding driven sliders 6 are pushed out of the storage box 5, the active slider 3 remains connected to the first driven slider 6, and the cam 701 rotates to the initial position.

[0045] In the initial position, the highest point of the outer circumference of the cam 701 is flush with the bottom surface of the slide groove 201, and the cam 701 is in an inclined state, which can support the driven slider 6 in the storage box 5 and does not interfere with the movement of the active slider 3.

[0046] From the above specific implementations, it can be seen that the present invention has the following beneficial effects: 1. Through the cooperation of the lifting mechanism 7, the driven slider assembly and the active slider 3, when the tarpaulin 1 is put away, the driven slider assembly can be pulled back and the driven slider 6 can be disconnected and stored in the storage box 5. When the tarpaulin 1 needs to be released, the driven slider assembly is pushed to move along the slide groove 201 to drive the tarpaulin 1 to unfold and realize the restoration of the connection of each driven slider 6. Compared with the prior art, there is no disorder of the wire rope and the friction between multiple driven sliding rings. It is smooth to use without jamming and has a long service life; 2. By providing the lifting spring 602 and the guide surface, it is convenient for the connecting pin 601 to extend into the connecting hole 603 and the groove 302, thereby ensuring reliable automatic connection between the active slider 3 and the driven slider 6 and between two adjacent driven sliders 6; 3. By using the connecting pin 601 made of rubber, the connecting pin 601 can be bent and deformed under the push and pull action of the connecting plate 301 and the connecting part 2, making it easier to connect or disconnect, further ensuring reliable automatic connection; 4. By limiting the width of the storage box 5, on the one hand, it is ensured that the driven slider 6 reduces the lifting resistance, and on the other hand, it is ensured that when the driven slider 6 is separated, the storage box 5 plays a limiting role to avoid being dragged; 5. The reciprocating movement of the active slider 3 is realized by the connecting rod 401 mechanism, and the structure is simple and compact; 6. By providing a driving member to drive the transmission key 702 to move back and forth, the lifting mechanism 7 can work intermittently, avoiding interference and jamming when the driven slider 6 moves.

[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dustproof device for a vehicle compartment, comprising a tarpaulin (1), characterized in that: Also includes: Two support plates (2), the support plates (2) being arranged at the upper part of both sides of the vehicle compartment, the top of the support plates (2) being provided with a slide groove (201), along the moving direction of the tarpaulin (1) when the tarpaulin (1) is folded, a mounting groove being provided in the front interlayer of the support plates (2), along the moving direction of the tarpaulin (1) when the tarpaulin is folded, the front ends of the tarpaulin (1) being connected to the support plates (2) on the corresponding sides; Two groups of driven slider assemblies, each of which comprises a plurality of driven sliders (6) that move along the slide groove (201), wherein the plurality of driven sliders (6) are detachably connected to each other, and along the moving direction of the tarpaulin (1) when the tarpaulin (1) is folded, the last driven slider (6) is connected to the end of the tarpaulin (1); An active slider (3), the active slider (3) being connected to a driving assembly (4), the active slider (3) being capable of reciprocating in the slide groove (201), and the rear end of the active slider (3) being detachably connected to the corresponding driven slider (6) along the moving direction when the tarpaulin (1) is folded; A storage box (5), the storage box (5) being arranged at the front end of the support plate (2) and opposite to the mounting groove, the active slider (3) being able to move through the lower part of the storage box (5), and the storage box (5) being used to store the driven slider (6); A lifting mechanism (7), wherein the lifting mechanism (7) is arranged in the installation groove, and the lifting mechanism (7) can lift the driven slider (6) into the storage box (5), and the lifted driven slider (6) is separated from the active slider (3) and the adjacent driven slider (6).

2. The vehicle compartment dust prevention device according to claim 1, characterized in that: Along the moving direction when the tarpaulin (1) is folded, a connecting portion 1 is provided at the upper front end of the driven slider (6), and a connecting portion 2 is provided at the lower rear end of the driven slider (6). A connecting pin (601) is provided on the connecting portion 1, and a connecting hole (603) is provided on the lower surface of the connecting portion 2. The connecting pin (601) can extend into the connecting hole (603). A connecting plate (301) is swingably provided at the upper rear end of the active slider (3), and a return spring is provided between the connecting plate (301) and the active slider (3). A groove (302) is provided on the lower surface of the connecting plate (301), and the connecting pin (601) can extend into the groove (302).

3. The dust-proof device for a vehicle compartment according to claim 2, characterized in that: The connecting portion is provided with a pin hole, the pin hole is provided with the connecting pin (601), a lifting spring (602) is provided between the connecting pin (601) and the bottom of the pin hole, and a guide surface is provided at the front of the connecting pin (601), the upper part of the guide surface is inclined backwards.

4. The vehicle compartment dust prevention device according to claim 3, characterized in that: The connecting pin (601) is made of rubber material.

5. The vehicle compartment dust prevention device according to claim 1, characterized in that: A magnetic block 1 is arranged at the rear end of the active slider (3), and a magnetic block 2 and a magnetic block 3 are arranged at the front and rear ends of the driven slider (6), respectively; the magnetic properties of the magnetic block 2 and the magnetic block 3 are opposite, and the magnetic properties of the magnetic block 1 and the magnetic block 2 are opposite.

6. The dustproof device for a vehicle compartment according to any one of claims 1 to 5, characterized in that: The storage box (5) is provided with entrances at both ends of the lower part, the width of the storage box (5) is greater than the length of the driven slider (6), and when the driven slider (6) is located in the slide groove (201) at the bottom of the storage box (5), adjacent parts of the driven slider (6) are located outside the storage box (5).

7. The vehicle compartment dust prevention device according to claim 6, characterized in that: The driving assembly (4) comprises a driving motor (405), wherein the driving motor (405) drives a driving shaft (404), wherein the driving shaft (404) is rotatably arranged between the two supporting plates (2), wherein driving gears are respectively arranged at both ends of the driving shaft (404), wherein the driving gears mesh with driven gears (403), wherein a connecting rod (401) is arranged on the driven gear (403), wherein an end of the connecting rod (401) is rotatably connected to a swing arm (402), and wherein the swing arm (402) is rotatably connected to a front end of the active slider (3) on the corresponding side.

8. The vehicle compartment dust prevention device according to claim 7, characterized in that: The lifting mechanism (7) comprises a gear shaft (703), the gear shaft (703) being rotatably arranged on the inner wall of the support plate (2), a transmission belt being arranged between one end of the gear shaft (703) and the driven gear (403), a cam (701) being coaxially and rotatably arranged at the other end of the gear shaft (703), the cam (701) being arranged in the mounting groove, a transmission key (702) being arranged between the cam (701) and the gear shaft (703), the transmission key (702) being connected to a driving member, and the driving member being capable of driving the transmission key (702) to move axially.

9. The vehicle compartment dust prevention device according to claim 8, characterized in that: The driving member comprises an electromagnet, and the driving member is arranged in a mounting cavity of the cam (701). The electromagnet and the transmission key (702) are connected via a telescopic spring. When the driving member is energized, the transmission key (702) retracts into the mounting cavity, and the gear shaft (703) can rotate relative to the cam (701).

10. A method for retracting and releasing a tarpaulin of a dustproof device for a carriage, characterized in that: The vehicle compartment dust prevention device according to claim 9 comprises the following steps: S01: When the tarpaulin is folded, the active slider moves forward by a set distance, driving the driven slider assembly to move forward; S02: When the driven slider connected to the active slider completely enters the lower part of the storage box, the cam of the lifting mechanism starts to rotate from the initial position, gradually lifting the driven slider located above it upward, so that its two ends are separated from the active slider and the adjacent driven slider and enter the storage box; S03: The active slider moves to the end point and then moves backward into the storage box, and generates sliding friction with the driven slider that has just entered the storage box. The cam rotates to the initial position and stops rotating; S04: the active slider moves backwards by a set distance and then automatically connects with the driven slider outside the storage box; S05: The active slider moves forward, driving the driven slider assembly to move forward; S06: repeating steps S02 to S04 until the second to last driven slider in the driven slider group enters the storage box, the active slider is located at the front of the storage box and is still connected to the second to last driven slider, and the cam rotates to a position contacting the lower surface of the second driven slider and no longer rotates; S07: When releasing the tarpaulin, the active slider moves backward, pushing the second-to-last driven slider to move to the outside of the storage box, and the cam remains stationary; S08: The active slider moves forward in the reverse direction by a set distance to the front of the storage box, and the third to last driven slider falls on the upper part of the cam under the action of gravity; S09: the active slider moves backward, pushing the third-to-last driven slider to move to the outside of the storage box and connect with the second-to-last driven slider; S10: Repeat steps S08 to S09 until all corresponding driven sliders are pushed out of the storage box, the active slider remains connected to the first driven slider, and the cam rotates to the initial position.

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