Tail opening and closing control mechanism of awning system
By introducing upper rollers, lower rollers, and swing arm assemblies into the canopy system, combined with enclosed tension springs and external springs, automated tail opening and closing control of the tarpaulin is achieved, solving the problems of poor automation and stability in existing technologies, and improving operational reliability and environmental protection.
Patent Information
- Application Number
- CN202520066781.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The existing vehicle canopy system's rear opening and closing control mechanism is difficult to automate, has poor stability and a high failure rate, and cannot effectively prevent environmental pollution caused by flying construction waste.
The system uses a base plate with upper and lower rollers, combined with straight and curved swing arms. Through a combination of closed tension springs and external springs, the automatic opening and closing control of the tarpaulin is achieved. The cooperation of the stop block and the closed tension spring ensures that the tarpaulin automatically closes or opens when the base plate moves.
It achieves automated tail opening and closing control of the tarpaulin, with a compact structure, stable operation, reduced failure rate, and effectively prevents soil slag from flying, thus reducing environmental pollution.
Smart Images
Figure CN223574308U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to vehicle canopy equipment technical field, especially relate to a tail opening and closing control mechanism of canopy system. BACKGROUND
[0002] The canopy system is an environmental protection facility for the muck truck, if the muck in the car hopper is not covered when driving, the muck in the car hopper will fly up and suspend everywhere under the action of airflow, resulting in environmental pollution and increasing the dust degree on the construction area and driving route. In order to solve the foregoing pollution problem of the muck truck, the prior art sets tarpaulin or canopy system on the car hopper to close the car hopper, avoiding the muck flying up under the airflow.
[0003] The canopy system is spread on the top of the car hopper in the use state, and needs to be folded and stored in the non-use state, so that the volume is fully reduced and the occupation of the car hopper space is reduced. Under normal circumstances, in order to meet the space requirement of loading goods into the car hopper, the height of the canopy system should be greater than the height of the car hopper, that is, the tarpaulin translation support device supports the tarpaulin to a certain height position, so that the lower part has enough space for loading goods. In this way, the tail part needs to be provided with an opening and closing control mechanism to control the tarpaulin moved to the tail part of the car hopper to be turned down to completely cover and close the car hopper. The tail opening and closing control mechanism should be automatically closed when moving to the tail part of the car hopper and automatically opened when leaving the tail part of the car hopper, that is, without human intervention, and the structure is stable and the failure rate is low during the opening and closing control process. The tail opening and closing control mechanism configured by the existing vehicle canopy system is difficult to meet the foregoing requirements, so it needs to be developed and designed. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a tail opening and closing control mechanism of canopy system, which is compact in structure, stable in operation and low in failure rate.
[0005] The utility model adopts the technical scheme: a tail opening and closing control mechanism of canopy system, including base plate, the inner side lower part of base plate is installed with upper roller and lower roller, the track installed and fixed on the side of car hopper is located between upper roller and lower roller;It also includes the swing arm composed of straight type upper swing arm and arc type lower swing arm, the middle part of swing arm is connected with the front part of base plate by hinged shaft, the connecting plate is installed on the rear of the middle part of straight type upper swing arm, the outer spring is installed between the connecting plate and the top of the front part of base plate, the closed type tension spring is installed between the middle part of arc type lower swing arm and the bottom of the front part of base plate;The cylindrical push block that cooperates with the lower arc edge of arc type lower swing arm is also installed on the side of car hopper, when base plate moves back, push block makes swing arm swing down, when base plate moves forward, closed type tension spring makes swing arm swing up.
[0006] Preferably, the enclosed tension spring comprises a sleeve with an upper end cap at the upper end and a lower end cap at the lower end, an inner sliding block is arranged in the sleeve, a lower connecting rod is arranged at the bottom of the inner sliding block and passes through a hole in the middle of the lower end cap, an inner spring is arranged between the inner sliding block and the lower end cap, and an upper connecting rod is arranged on the upper end cap.
[0007] Preferably, an upper sleeve ring is arranged at the upper end of the upper connecting rod, and a lower sleeve ring is arranged at the lower end of the lower connecting rod.
[0008] Preferably, a plurality of adjusting holes are arranged at the rear edge of the straight upper swing arm, the connecting plate is triangular in shape, and the front edge of the connecting plate is fixedly connected to the straight upper swing arm by bolts arranged in the adjusting holes; a plurality of connecting holes are arranged at the middle of the lower arc-shaped edge of the arc-shaped lower swing arm, and the lower end of the enclosed tension spring is connected to the arc-shaped lower swing arm by a bolt arranged in one of the connecting holes.
[0009] Preferably, a wheel support is arranged at the inner lower part of the base plate, the upper rollers comprise front and rear rollers which are arranged at the upper part of the wheel support, and the lower rollers comprise front and rear rollers which are arranged at the lower part of the wheel support.
[0010] Preferably, a mounting hole is arranged at the upper end of the straight upper swing arm, a support beam is arranged between the straight upper swing arms of the tail opening and closing control mechanism, end portions of the support beam are fixedly connected to the straight upper swing arms by bolts arranged in the mounting holes, and the tarpaulin of the canopy system is fixedly connected to the support beam by a pressing plate.
[0011] The utility model discloses a tail opening and closing control mechanism of canopy system, through setting up the base plate with upper roller and lower roller, the stable translation of swing arm and other components is realized.
[0012] The utility model discloses a tail opening and closing control mechanism of canopy system, through setting up the base plate with upper roller and lower roller, the stable translation of swing arm and other components is realized.
[0013] On the other hand, the elastic element in the utility model is selected as an ordinary spring arranged above and an enclosed tension spring arranged below, the outer spring provides a damping effect, and the enclosed tension spring provides a pulling force, and since the structure is enclosed, the slag and dust are not easy to enter, and the enclosed tension spring does not have the failure problem caused by overpulling, which further improves the stability of operation and reduces the failure rate. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is the front view structure schematic diagram of the utility model;
[0015] Figure 2 is Figure 1 the section structure schematic diagram of the closed tension spring.
[0016] In the figure:
[0017] 1, track; 2, hinged shaft; 3, straight upper swing arm; 4, mounting hole; 5, connecting plate; 6, adjusting hole; 7, outer spring; 8, base plate; 9, wheel support; 10, upper roller; 11, lower roller; 12, closed tension spring; 12-1, upper collar; 12-2, upper connecting rod; 12-3, upper end cover; 12-4, inner sliding block; 12-5, sleeve; 12-6, inner spring; 12-7, lower connecting rod; 12-8, lower end cover; 12-9, lower collar; 13, push block; 14, connecting hole; 15, arc lower swing arm; 16, support beam; 17, tarpaulin; 18, pressing plate. DETAILED DESCRIPTION
[0018] In order to further understand the invention content, characteristics and effects of the utility model, the following examples are used for detailed description.
[0019] Please see Figure 1 The tail opening and closing control mechanism of the tarpaulin system comprises a base plate 8, upper rollers 10 and lower rollers 11 are installed on the inner lower part of the base plate 8, and the track 1 fixedly installed on the side of the vehicle hopper is located between the upper rollers 10 and the lower rollers 11, so that the tail opening and closing control mechanism can move forward or backward along the length direction of the track 1.
[0020] In the embodiment, a wheel support 9 is installed on the inner lower part of the base plate 8, the upper rollers 10 comprise two rollers in front and back and the two rollers are installed on the upper part of the wheel support 9, the lower rollers 11 comprise two rollers in front and back and the two rollers are installed on the lower part of the wheel support 9, so that the track 1 is clamped between the two rollers above and the two rollers below, and the stability of the translational movement is improved.
[0021] The swing arm is composed of the straight upper swing arm 3 and the arc lower swing arm 15, the swing arm can be integrally cut from thick metal plate, or the straight upper swing arm 3 and the arc lower swing arm 15 are separately formed and then welded and spliced, the middle part of the swing arm (that is, the position where the straight upper swing arm 3 and the arc lower swing arm 15 meet) is hingedly connected with the front part of the base plate 8 through the hinged shaft 2, so that the swing arm can tilt and rotate around the hinged shaft 2 as the center.
[0022] A connecting plate 5 is installed at the middle rear of the straight upper swing arm 3, an outer spring 7 is installed between the connecting plate 5 and the top front of the base plate 8, and a closed tension spring 12 is installed between the middle of the arc lower swing arm 15 and the bottom front of the base plate 8. The outer spring 7 functions as a damper, with its upper end connected to the connecting plate 5 and its lower end connected to the top front of the base plate 8. The closed tension spring 12 provides a restoring force, with its upper end connected to the bottom front of the base plate 8 and its lower end connected to the middle of the arc lower swing arm 15. The closed tension spring 12 is of a closed structure, which prevents the entry of dirt and dust and thus avoids the problem of jamming.
[0023] In this embodiment, a plurality of adjustment holes 6 are provided at the rear edge of the straight upper swing arm 3, and the connecting plate 5 is triangular in shape, with its front edge fixedly connected to the straight upper swing arm 3 by means of bolts located in the adjustment holes 6. Thus, the position of the connecting plate 5 can be adjusted up and down. In this embodiment, a plurality of connecting holes 14 are provided at the middle of the lower arc edge of the arc lower swing arm 15, and the lower end of the closed tension spring 12 is connected to the arc lower swing arm 15 by means of a bolt located in one of the connecting holes 14. Thus, the position of the lower end of the closed tension spring 12 relative to the arc lower swing arm 15 can be adjusted, so as to adjust the tension of the closed tension spring 12.
[0024] A cylindrical push block 13 is also installed on the side of the car hopper, which cooperates with the lower arc edge of the arc lower swing arm 15. When the base plate 8 moves rearward, the push block 13 causes the swing arm to swing downward (i.e., clockwise as shown in Figure 1 ), and the tail of the tarpaulin system is closed. When the base plate 8 moves forward, the closed tension spring 12 causes the swing arm to swing upward (i.e., counterclockwise as shown in Figure 1 ), and the tail of the tarpaulin system is opened.
[0025] Please refer to Figure 2 , and it can be seen that the structure of the closed tension spring 12 is as follows:
[0026] The closed tension spring 12 includes a sleeve 12-5 with an upper end cap 12-3 at the upper end and a lower end cap 12-8 at the lower end. An inner sliding block 12-4 is provided in the sleeve 12-5. A lower connecting rod 12-7 is installed at the bottom of the inner sliding block 12-4 and passes through a hole in the middle of the lower end cap 12-8. An inner spring 12-6 is also provided between the inner sliding block 12-4 and the lower end cap 12-8, and is in a compressed state. An upper connecting rod 12-2 is installed on the upper end cap 12-3. Specifically, the upper end cap 12-3 is fixedly welded to the upper end of the sleeve 12-5, the lower end cap 12-8 is fixedly welded to the lower end of the sleeve 12-5, the upper end of the lower connecting rod 12-7 is fixedly welded to the inner sliding block 12-4, and the lower end of the upper connecting rod 12-2 is fixedly welded to the upper end cap 12-3.
[0027] In this embodiment, an upper collar 12-1 is arranged at the upper end of the upper connecting rod 12-2, and a lower collar 12-9 is arranged at the lower end of the lower connecting rod 12-7. The upper collar 12-1 and the lower collar 12-9 are arranged to facilitate the installation and connection.
[0028] In this embodiment, a mounting hole 4 is arranged at the upper end of the straight upper swing arm 3. A support beam 16 is arranged between a pair of straight upper swing arms 3 of the tail opening and closing control mechanism. The ends of the support beam 16 are fixedly connected to the straight upper swing arms 3 by bolts arranged in the mounting holes 4. The tarpaulin 17 of the canopy system is fixedly connected to the support beam 16 by a pressing plate 18. The pressing plate 18 is fixedly connected to the support beam 16 by bolts. The tarpaulin 17 is clamped between the pressing plate 18 and the support beam 16. In this way, when the swing arm rotates clockwise, the rear part of the tarpaulin 17 is pulled downward to reach a closed state. When the base plate 8 moves forward, the swing arm rotates counterclockwise under the pulling force provided by the closed spring 12, and the rear part of the tarpaulin 17 is lifted upward to reach an open state.
Claims
1. A tail opening and closing control mechanism of a tonneau cover system, characterized by: The utility model provides a kind of tailgate opening and closing control mechanism, including base plate (8), upper roller (10) and lower roller (11) are installed in the inner side lower part of base plate (8), and track (1) fixedly installed on the side of car hopper is located between upper roller (10) and lower roller (11);Further include the swing arm of straight type upper swing arm (3) and arc type lower swing arm (15) are constituted, and the middle part of swing arm is hinged with the front of base plate (8) using hinged shaft (2) hinged connection, connecting plate (5) is installed in the middle part rear of straight type upper swing arm (3), outer spring (7) is installed between connecting plate (5) and the top of the front of base plate (8), closed extension spring (12) is installed between the middle part of arc type lower swing arm (15) and the bottom of the front of base plate (8);Cylindrical, and cooperate with the lower arc edge of arc type lower swing arm (15) and be installed on the side of car hopper and be pushed and blocked block (13), when base plate (8) moves back, pushed and blocked block (13) makes swing arm swing down, when base plate (8) moves forward, closed extension spring (12) makes swing arm swing up.
2. The tonneau system opening and closing control mechanism of claim 1, wherein: Closed extension spring (12) includes sleeve (12-5) with upper end cap (12-3) on upper end and lower end cap (12-8) on lower end, inner sliding block (12-4) is arranged in sleeve (12-5), lower connecting rod (12-7) is installed on the bottom of inner sliding block (12-4) and passes through the hole in the middle of lower end cap (12-8), inner spring (12-6) is further arranged between inner sliding block (12-4) and lower end cap (12-8), upper connecting rod (12-2) is installed on upper end cap (12-3).
3. The tonneau system opening and closing control mechanism of claim 2, wherein the The upper end of upper connecting rod (12-2) is provided with upper sleeve ring (12-1), and the lower end of lower connecting rod (12-7) is provided with lower sleeve ring (12-9).
4. The tonneau system opening and closing control mechanism according to claim 3, wherein the second link member is pivotally connected to the first link member at a point on the first link member that is located between the first and second pivot points. The rear edge of straight type upper swing arm (3) is provided with a plurality of adjusting holes (6), the connecting plate (5) is triangular in shape, and the front edge thereof is fixedly connected with the straight type upper swing arm (3) by means of bolts arranged in the adjusting holes (6); a plurality of connecting holes (14) are arranged in the middle of the lower arc edge of the arc type lower swing arm (15), and the lower end of the closed extension spring (12) is connected with the arc type lower swing arm (15) by means of a bolt arranged in one of the connecting holes (14).
5. The tonneau system opening and closing control mechanism of claim 4, wherein: A wheel support (9) is installed on the inner side lower part of the base plate (8), the upper roller (10) includes two rollers arranged in front and back, and the two rollers are installed on the upper part of the wheel support (9), and the lower roller (11) includes two rollers arranged in front and back, and the two rollers are installed on the lower part of the wheel support (9).
6. The tonneau system opening and closing control mechanism of claim 5, wherein the The upper end of the straight type upper swing arm (3) is provided with a mounting hole (4), a support beam (16) is installed between the straight type upper swing arms (3) of a set of oppositely arranged tail gate opening and closing control mechanisms, and the ends of the support beam (16) are fixedly connected with the straight type upper swing arms (3) by means of bolts arranged in the mounting holes (4), and the tarpaulin (17) of the tarpaulin system is fixedly connected with the support beam (16) by means of a pressing plate (18).