Ratchet tensioner

Abstract

The utility model discloses a ratchet tensioner, relates to the technical field of pickup motor home equipment, and solves the problem in the prior art that the ratchet tensioner comprises a limiting elastic adjusting device and a base, the elastic adjusting device comprises an adjusting supporting plate, a ratchet wheel, a transverse penetrating shaft, a gear connecting rod and a spring device. The adjusting supporting plate is installed on the base and comprises a second bottom plate and second side plates arranged on the left side and the right side of the second bottom plate, the transverse penetrating shaft transversely penetrates through the two second side plates from left to right, the ratchet wheel is arranged on the transverse penetrating shaft located on the outer side of the second side plate on the left side in a sleeving mode, and a rope penetrating through hole is formed between the two second side plates; one end part of the gear connecting rod is hinged to the outer side of the left second side plate, and the other end part of the gear connecting rod is connected with the second side plate higher than the upper part through a spring device; a tooth-shaped structure meshed with the ratchet wheel is arranged at the upper end of the middle of the gear connecting rod. The ratchet tensioner provided by the utility model is convenient to operate, and the stability and comfort of the pickup motor home after installation are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pickup car equipment technical field, concretely is a ratchet tensioner. BACKGROUND

[0002] Most of the pickup car in the field of house car adopts integral structure at present, namely, the compartment is generally fixed and cannot be disassembled, the use is single, and installation and transportation are not convenient enough.CN202123204708.3 discloses a pickup car, specifically a detachable pickup car, which can drive the expansion of the supporting rod and the fixed rod by the meshing of the first gear, the second gear and the rack mechanism through the sliding of the box body when disassembled, and can realize the separate setting of the box body and the pickup car compartment.However, the detachable pickup car in the normal driving process, since the compartment and the car hopper are connected only through the connecting structure of the surrounding four directions, there is no fastening device between the pickup car compartment and the car hopper, which causes the shaking between the compartment and the car hopper during the driving of the pickup car house car, especially in dangerous environment, due to the uneven road, the connecting structure is loose, and serious accidents may occur. SUMMARY

[0003] The utility model discloses in view of the shortcoming and insufficient of prior art, the utility model provides a ratchet tensioner that device structure is simple, convenient to use, saves time and labor in use adjustment operation, can obviously improve the stability and comfort of pickup car after installation.

[0004] The utility model discloses the following technical scheme to realize:

[0005] The ratchet tensioner provided by the utility model comprises a limiting elastic adjusting device and a base.

[0006] The limiting elastic adjusting device comprises an adjusting support plate, a ratchet wheel, a transverse shaft, a gear connecting rod and a spring device.

[0007] The base comprises a first bottom plate, and a second limiting protection side wall is arranged at the right side of the first bottom plate.

[0008] The adjusting support plate is installed on the first bottom plate of the base, and the adjusting support plate comprises a second bottom plate and second side plates arranged at the left and right sides thereof.

[0009] The transverse shaft transversely penetrates through the two second side plates from left to right, and after penetrating through the outside of the right second side plate, the transverse shaft is integrally and rotatably connected to the second side plates on the left and right sides.

[0010] The ratchet wheel is sleeved on the transverse shaft outside the left second side plate, the ratchet wheel is fixedly connected with the transverse shaft and can rotate along the transverse shaft in the axial direction.

[0011] The transverse shaft between the left and right second side plates is provided with a rope penetrating hole.

[0012] Gear connecting rod is transversely arranged at the bottom of the ratchet wheel, one end of the gear connecting rod is hingedly connected to the outer side of the left second side plate, and the other end of the gear connecting rod is connected to the second side plate higher than the upper part thereof through a spring device;

[0013] The middle part of the gear connecting rod is provided with a toothed structure engaged with the ratchet wheel.

[0014] Preferably, one end of the gear connecting rod is rotatably connected to the outer wall of the left second side plate through a limiting shaft for circumferential limiting.

[0015] The other end of the gear connecting rod extends out of the edge of the left second side plate, and the end part extending out of the second side plate is connected to the upper edge of the left second side plate through a spring device.

[0016] Preferably, the adjusting support plate is a U-shaped bracket surrounded by the second bottom plate and the left and right second side plates.

[0017] The two second side plates are vertically and parallel arranged, and the two second side plates are provided with mounting holes on the opposite plate surfaces, and the transverse shaft can be transversely arranged through the two mounting holes and rotatably limited on the two second side plates.

[0018] Preferably, the width of the second bottom plate is smaller than the width of the first bottom plate.

[0019] Preferably, the base further comprises first limiting protection side walls arranged on the front and rear sides thereof, and the heights of the first limiting protection side walls and the second limiting protection side walls are higher than the height of the second side plate.

[0020] The right side of the first limiting protection side wall is fixedly connected to the front and rear edges of the second limiting protection side wall.

[0021] Preferably, the left limiting baffle matched with the limiting elastic adjusting device is arranged at the left edge of each of the two first limiting protection side walls, and the width between the two left limiting baffles is greater than or equal to the width of the limiting elastic adjusting device.

[0022] Preferably, the transverse shaft is circumferentially limited by a rotary limiting plate after penetrating through the outer side of the right second side plate, and the outer diameter of the rotary limiting plate is greater than the outer diameter of the mounting hole of the right second side plate.

[0023] Preferably, the outer end of the transverse shaft arranged at the outer side of the ratchet wheel is a hexagonal steel shaft, and the end of the hexagonal steel shaft extends out of the outer edge of the first bottom plate.

[0024] Preferably, the outer side of the second limiting protection side wall is further provided with a rubber pad.

[0025] The utility model provides a kind of ratchet tensioner. With the following beneficial effects:

[0026] (1) The utility model is a ratchet tensioner, which is installed in the RV by installing the cross shaft at the end of the hexagonal steel shaft inside the RV. When the pickup truck body and the truck bed need to be tightened, it is only necessary to use a wrench in the RV to twist the cross shaft at the end of the hexagonal steel shaft. The rotation of the cross shaft at the end of the hexagonal steel shaft drives the rotation of the ratchet. The rotation of the ratchet adjusts the engagement angle with the arc-shaped gear part of the gear connecting rod, and the rope passing through the rope through the middle hole of the cross shaft can be tightened, thereby achieving a tight connection between the car body and the pickup truck bed, making the pickup truck body more stable as a whole, and the body will not shake when driving on a bumpy road surface, which can significantly improve the stability and comfort of the RV.

[0027] To release the rope and separate the cars, simply manually bend the extended end of the gear link and the spring mechanism near the first base plate to separate the ratchet from the curved gear portion of the gear link. This releases the tension in the rope, allowing the ratchet and gear link to return to their original positions. This entire tensioning and separating process saves time and effort, significantly improving the convenience and comfort of pickup trucks and RVs.

[0028] (2) A ratchet tensioner of the present invention is also provided with a rubber pad on the outer side of the second limit protection side wall, which can further play a buffering role. When in use, the whole is installed on the inner side of the pickup truck bed to support the gap between the RV body and the pickup truck bed, which can effectively prevent the RV body from shaking due to the loose connection between the RV body and the pickup truck bed. The entire device is easy to install and operate, and significantly improves the stability and comfort of the pickup truck bed after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the ratchet tensioner of the utility model;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the middle limit elastic adjustment device;

[0031] Figure 3 for Figure 1 A schematic structural diagram of a stereogram;

[0032] Figure 4 for Figure 1 Schematic diagram of the structure of the main view.

[0033] In the figure: 1. cross shaft; 2. gear connecting rod; 3. ratchet; 4. adjustment support plate; 5. limit shaft; 6. first limit protection side wall; 7. second limit protection side wall; 8. rubber pad; 9. spring device; 10. first bottom plate; 101. hexagonal steel shaft; 102. rope threading hole; 103. rotation limit plate; 401. second bottom plate; 402. second side plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] like Figures 1-3 As shown, the ratchet tensioner provided by the present invention includes a position-limiting elastic adjustment device and a base. The position-limiting elastic adjustment device includes an adjustment support plate 4, a ratchet 3, a transverse shaft 1, a gear connecting rod 2, and a spring device 9. The base includes a first base plate 10 and a second position-limiting protective side wall 7 disposed on its right side. The adjustment support plate 4 is mounted on the first base plate 10 of the base. The adjustment support plate 4 includes a second base plate 401 and second side plates 402 disposed on its left and right sides. The transverse shaft 1 passes horizontally through the two second side plates 402 from left to right. After passing through the outside of the right second side plate 402, the entire body is rotatably connected to the left and right second side plates 402. The transverse shaft 1 is located between the left and right second side plates 402 and is provided with a rope threading hole 102 through which a rope can pass. The ratchet 3 is mounted on the transverse shaft 1 located outside the left second side plate 402. The ratchet 3 is fixed to the transverse shaft 1 and can rotate axially with the transverse shaft 1. By fixing the ratchet 3 on the transverse shaft 1 and using a wrench to adjust the rotation of the transverse shaft 1, the ratchet 3 is driven to rotate, and the angle of engagement between the ratchet 3 and the arc-shaped gear portion of the gear connecting rod is adjusted by the rotation of the ratchet, so that the rope passing through the rope through hole in the middle of the transverse shaft can be tightened.

[0037] The gear connecting rod 2 is disposed transversely at the bottom of the ratchet 3. One end of the gear connecting rod 2 is hinged to the outer side of the left second side plate 402. The gear connecting rod 2 is circumferentially limited by a limit shaft 5 and is rotatably hinged to the outer wall of the left second side plate 402. The other end of the gear connecting rod 2 is connected to the second side plate 402, which is higher than the upper portion thereof, via a spring device 9. The outer end of the other end of the gear connecting rod 2 extends beyond the edge of the left second side plate 402, and the end extending beyond the second side plate 402 is connected to the upper edge of the left second side plate 402 via a spring device 9. The upper middle end of the gear connecting rod 2 is provided with a toothed structure that meshes with the ratchet 3.

[0038] As Figure 4 shown, when the rope is tightened by adjusting the ratchet 3 and the gear connecting rod 2 through the rotation of the ratchet 3, because the gear connecting rod 2 is provided with a toothed structure engaged with the ratchet 3, as the ratchet 3 rotates, the end of the gear connecting rod 2 extending from the second side plate 402 will tilt with the rotation of the ratchet 3. Because the end of the gear connecting rod 2 extending from the second side plate 402 is connected to the upper edge of the left second side plate 402 by the spring device 9, the spring device 9 will deform with the tilt angle of the gear connecting rod 2, and at the same time, the spring device 9 will tighten the connection between the gear connecting rod 2 and the second side plate 402 by using the reverse force when deforming, maintaining the engagement angle of the ratchet 3 and the arc gear part of the gear connecting rod 2, thereby achieving the purpose of tightening the rope.

[0039] Specifically, the adjusting support plate 4 is a U-shaped bracket surrounded by the second bottom plate 401 and the left and right second side plates 402; the two second side plates 402 are vertically parallel and oppositely provided with mounting holes on the plate surfaces, which are used to provide space for the passing of the cross shaft 1, facilitating the passing of the cross shaft 1. After the cross shaft 1 passes through the two mounting holes, it can be circumferentially limited to rotate on the two second side plates 402, and the rotation of the adjusting ratchet 3 is driven by the axial limited movement of the cross shaft 1, thereby achieving the purpose of tightening the rope.

[0040] The width of the second bottom plate 401 is less than the width of the first bottom plate 10. The base further comprises first limiting protection side walls 6 provided on the front and rear sides thereof, and the heights of the first limiting protection side walls 6 and the second limiting protection side walls 7 are higher than the height of the second side plate 402; the right side of the first limiting protection side wall 6 is fixedly connected to the front and rear edges of the second limiting protection side wall 7. The base is a frame structure composed of three side surfaces and a ground surface, which is arranged outside the adjusting support plate 4 and is used to protect and support the adjusting support plate 4, and is also conducive to the stable placement of the adjusting support plate 4.

[0041] The left side edges of the two first limiting protection side walls 6 are provided with left limiting baffle plates matched with the limiting elastic adjusting devices, and the width between the two left limiting baffle plates is greater than or equal to the width of the limiting elastic adjusting device. In the embodiment, the cross shaft 1 is installed inside the house car, and the left limiting baffle plates are used to abut against the outside of the car body, so as to protect and support the gap between the elastic adjusting device and the house car body and the pickup truck bed, and avoid damage to the elastic adjusting device due to collision and friction.

[0042] After passing through the outer side of the right second side plate 402, the cross shaft 1 is circumferentially restrained by a rotational stop plate 103. The outer diameter of the rotational stop plate 103 is larger than the inner diameter of the mounting hole of the right second side plate 402. The rotational stop plate 103 is used to prevent the cross shaft 1 from rotating and separating from the first semicircular steel plate 4021 of the right second side plate 402, thereby preventing the tension from being loosened and causing the carriage to shake.

[0043] The outer end of the cross shaft 1, located outside the ratchet 3, is configured as a hexagonal steel shaft 101, and the end of the hexagonal steel shaft 101 extends beyond the outer edge of the first base plate 10. By adjusting the rotation of the hexagonal steel shaft with a wrench, the rotation angle of the ratchet can be adjusted, which ultimately allows the rope passing through the rope hole in the cross shaft to be pulled in, effectively adjusting the pull rope on the pickup truck.

[0044] The outer side of the second limit protection side wall 7 is further provided with a rubber pad 8. It can further play a buffering role to avoid the occurrence of the shaking of the RV body.

[0045] The utility model provides a ratchet tensioner, the specific working principle of which is:

[0046] When tightening the pickup truck body and the pickup truck bed, the ratchet tensioner is installed as a whole on the inside of the pickup truck bed to support the gap between the RV body and the pickup truck bed. The cross shaft at the end of the hexagonal steel shaft is installed inside the RV. A wrench is used inside the RV to adjust the rotation of the cross shaft 1 at the end of the hexagonal steel shaft, and a rotary limit plate 103 is used to limit the cross shaft 1 from being separated from the right second side plate 402 due to rotation. The rotation of the cross shaft 1 at the end of the hexagonal steel shaft drives the rotation of the ratchet 3 fixed on the cross shaft 1. Since the gear connecting rod 2 is provided with a tooth structure that meshes with the ratchet 3, the engagement angle between the tooth profile of the ratchet 3 and the arc-shaped gear portion of the gear connecting rod is adjusted by the rotation of the ratchet 3. The end of the gear connecting rod 2 extending out of the second side plate 402 will tilt as the ratchet 3 rotates. Since the end portion of the gear connecting rod 2 extending out of the second side plate 402 is connected to the upper edge of the left second side plate 402 via the spring device 9, the spring device 9 will deform along with the tilt angle of the gear connecting rod 2. At the same time, the spring device 9 is used to tighten the connection between the gear connecting rod 2 and the second side plate 402 by the reverse force when deformation occurs, thereby maintaining the engagement angle between the ratchet 3 and the arc-shaped gear portion of the gear connecting rod 2, thereby achieving the conditions for tightening the rope passing through the rope threading hole in the middle of the cross shaft. During the driving process of the RV, the hexagonal steel shaft end can be adjusted with a wrench at any time according to the actual situation of the RV car body shaking to drive the ratchet 3 to rotate. The engagement angle between the ratchet 3 and the arc-shaped gear portion of the gear connecting rod 2 can be adjusted by rotating the ratchet 3 to further tighten the rope, thereby achieving a tight connection between the pickup truck car body and the pickup truck bucket. It can effectively reduce the shaking of the RV body caused by the loose connection between the RV body and the pickup truck bed, so that the body will not shake during driving. The connection between the RV body and the bed will be more stable. The entire tightening process is easy to operate, saving time and effort, and significantly improving the comfort and convenience of RV use.

[0047] When the rope needs to be loosened, one only needs to manually bend one end of the spring device 9 near the extended end of the gear connecting rod 2 and the first bottom plate 10 outside the car to eliminate the tension between the gear connecting rod 2 and the left second side plate 402. At this time, the teeth on the ratchet 3 are separated from the arc-shaped gear part of the gear connecting rod 2, and the rope loses its tension and is loosened, and the ratchet 3 and the arc-shaped gear part of the gear connecting rod 2 return to their original positions.

[0048] In summary, the ratchet tensioner provided by the utility model has a simple and ingenious structure, low manufacturing cost, can effectively reduce the shaking of the RV body due to the loose connection between the supporting RV body and the pickup truck bed, is easy to operate, and significantly improves the stability and comfort of the pickup RV after installation.

[0049] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A ratchet tensioner, characterized in that: It includes a limit elastic adjustment device and a base; The position limiting elastic adjustment device comprises an adjustment support plate (4), a ratchet (3), a transverse shaft (1), a gear connecting rod (2) and a spring device (9); The base comprises a first bottom plate (10) and a second position limiting protection side wall (7) arranged on the right side thereof. The adjustment support plate (4) is mounted on the first bottom plate (10) of the base, and the adjustment support plate (4) comprises a second bottom plate (401) and second side plates (402) arranged on the left and right sides thereof. The transverse axis (1) passes through the two second side plates (402) from left to right, and after passing through the outer side of the second side plate (402) on the right side, the entire structure can be rotatably connected to the second side plates (402) on the left and right sides; The ratchet (3) is sleeved on the transverse shaft (1) located outside the second side plate (402) on the left side, and the ratchet (3) is fixedly connected to the transverse shaft (1) and can rotate axially with the transverse shaft (1); A rope threading hole (102) is provided on the transverse shaft (1) located between the left and right second side plates (402); The gear connecting rod (2) is laterally arranged at the bottom of the ratchet wheel (3), one end of the gear connecting rod (2) is hinged to the outer side of the second side plate (402) on the left side, and the other end of the gear connecting rod (2) is connected to the second side plate (402) above the upper portion thereof via the spring device (9); The middle upper end of the gear connecting rod (2) is provided with a toothed structure that meshes with the ratchet wheel (3).

2. A ratchet tensioner according to claim 1, characterized in that: One end of the gear connecting rod (2) is circumferentially limited by a limiting shaft (5) and is rotatably connected to the outer side wall of the second side plate (402); The outer end portion of the other end of the gear connecting rod (2) extends out of the edge of the second side plate (402), and the end portion extending out of the second side plate (402) is connected to the upper edge of the second side plate (402) on the left side via the spring device (9).

3. A ratchet tensioner according to claim 1, characterized in that: The adjustment support plate (4) is a U-shaped bracket formed by the second bottom plate (401) and two left and right second side plates (402); The two second side plates (402) are arranged vertically and in parallel, and mounting holes are provided on the surfaces of the two plates opposite to each other. After the transverse shaft (1) passes through the two mounting holes transversely, it can be rotated circumferentially on the two second side plates (402).

4. The ratchet tensioner according to claim 1, characterized in that: The width of the second bottom plate (401) is smaller than the width of the first bottom plate (10).

5. The ratchet tensioner according to claim 1, characterized in that: The base further comprises a first position-limiting protection side wall (6) provided on the front and rear sides thereof, wherein the height of the first position-limiting protection side wall (6) and the second position-limiting protection side wall (7) are both higher than the height of the second side plate (402); The right side of the first position limiting protection side wall (6) is fixedly connected to the front and rear edges of the second position limiting protection side wall (7).

6. A ratchet tensioner according to claim 5, characterized in that: The left edges of the two first limiting protection side walls (6) are both provided with left limiting baffles that match the limiting elastic adjustment device. The width between the two left-side limiting baffles is greater than or equal to the width of the limiting elastic adjustment device.

7. The ratchet tensioner according to claim 1, characterized in that: After the transverse shaft (1) passes through the outer side of the second side plate (402) on the right side, it is circumferentially limited by a rotation limiting plate (103), and the outer diameter of the rotation limiting plate (103) is larger than the outer diameter of the mounting hole of the second side plate (402) on the right side.

8. The ratchet tensioner according to claim 1, characterized in that: The outer end of the transverse shaft (1) located outside the ratchet (3) is configured as a hexagonal steel shaft (101); and the hexagonal steel shaft (101) extends beyond the outer edge of the first bottom plate (10).

9. The ratchet tensioner according to claim 1, characterized in that: A rubber pad (8) is also provided on the outer side of the second position-limiting protection side wall (7).

Images