Folding tensioner

Abstract

A folding tensioner comprises a main body seat, a fixing shaft and a tensioning handle, the main body seat and the tensioning handle are connected and assembled through the fixing shaft, and the tensioning handle can rotate with the fixing shaft as the axis. A ratchet wheel is assembled on the fixing shaft, a first limiting sliding groove is formed in the tensioning handle, and a stop plate capable of being clamped into gear teeth of the ratchet wheel is assembled in the first limiting sliding groove. A second limiting sliding groove is formed in the main body base, and a limiting piece capable of being clamped into gear teeth of the ratchet wheel is assembled in the second limiting sliding groove. A connecting end column is arranged on the end face of the fixing shaft and used for being externally connected with an electric tool. Compared with the prior art, the tensioner has the advantages that convenience is provided for an external electric tool due to the arrangement of the connecting column, the tensioner can be supported by an extra power source when necessary, and more diversified power solutions are provided for field operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of tensioners, and in particular relates to a foldable tensioner. Background Art

[0002] In the field of logistics transportation and cargo storage, the stability and safe fixation of cargo is of vital importance. This is not only related to the safety during transportation, but also directly affects the efficiency of warehouse management. As a commonly used cargo binding tool, the tensioner is used to stabilize the cargo by tightening the straps or chains to prevent displacement or collapse during transportation. Traditional tensioner designs mostly rely on manual operation. The operator needs to manually rotate the crank or handle to generate tension to achieve the purpose of tightening the straps. Although this operation method is simple and intuitive, its limitations are obvious when facing heavy cargo or needing to be used in complex and high-altitude working environments.

[0003] Especially when workers have to operate in an inconvenient position, such as climbing to the top of a cargo pile or tying on the side of a high cargo pile, it becomes particularly laborious and inefficient to operate the tensioner solely by manpower. The workers' physical exertion is large and the working time is prolonged, which not only affects the work efficiency, but also may cause safety hazards due to improper operation. In addition, long-term manual labor intensity may also lead to occupational health problems, such as muscle strain and bone and joint injuries.

[0004] Therefore, based on some of the above prior art situations, the present application has been further designed and improved. Utility Model Content

[0005] In order to solve the above technical problems, the utility model solves them through the following technical solutions.

[0006] A foldable tensioner includes a main body, a fixed shaft and a tensioning handle, wherein the main body and the tensioning handle are connected and assembled via the fixed shaft, and the tensioning handle can rotate with the fixed shaft as the axis. A ratchet is assembled on the fixed shaft, and a first limiting slide is provided on the tensioning handle, in which a stop plate capable of snapping into the teeth of the ratchet is provided. A second limiting slide is provided on the main body, in which a limiting plate capable of snapping into the teeth of the ratchet is provided. A connecting end column is provided on the end face of the fixed shaft, and the connecting end column is used for externally connecting an electric tool.

[0007] Preferably, the fixed shaft is in a U-shaped structure with two half shafts, an empty slot for the pull belt to pass through is formed in the middle of the U-shaped structure, and two half slots for the half shafts to pass through are arranged on the ratchet wheel.

[0008] Preferably, the ends of the two half shafts are fixedly connected by a bolt.

[0009] Preferably, the main body seat is provided with an oil storage seat at the fixed shaft, and an oil storage tank is provided in the oil storage seat, and the oil storage tank is used to place lubricating grease to lubricate the connection between the main body seat and the fixed shaft.

[0010] Preferably, the oil storage tank is an annular groove open to the axis, the ratchet is provided with a convex portion, the convex portion cooperates with two half shafts to form a rotating portion, and the rotating portion is located in the oil storage seat and seals the opening of the oil storage tank.

[0011] Preferably, an oil filling port is arranged on the outer peripheral surface of the oil storage seat, and a plugging cover is mounted on the oil filling port.

[0012] Preferably, a guide slot is provided on the main body seat, and a guide column cooperating with the guide slot is provided at the tail of the limiting plate.

[0013] Preferably, a first card slot is provided on the main body seat, and the first card slot cooperates with the stop plate to lock the tensioning handle.

[0014] Preferably, the tightening handle is provided with a second slot capable of cooperating with the limiting sheet.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the setting of the connecting column provides convenience for external electric tools, allowing the tensioner to obtain support from additional power sources when necessary, providing a more diversified power solution for on-site operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a foldable tensioner.

[0017] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0018] Figure 3 It is a three-dimensional schematic diagram of the foldable tensioner when it is unfolded.

[0019] Figure 4 This is the structural explosion diagram of the foldable tensioner.

[0020] Figure 5 It is a plan view of a foldable tensioner.

[0021] Figure 6 for Figure 5 Cross-sectional view at AA in the middle.

[0022] Figure 7 It is the assembly diagram of the main seat, the fixed shaft and the limiting plate.

[0023] The following is a description of the markings in the accompanying drawings of the specification:

[0024] 10. Main body seat; 11. Connecting shaft; 12. Guide slide groove; 13. Second limit slide groove; 14. First clamping groove; 15. Oil storage seat; 16. Oil storage tank; 17. Blocking cover;

[0025] 20, fixed shaft; 21, half shaft; 22, latch; 23, ratchet; 24, connecting end column; 25, convex part; 26, half groove;

[0026] 30. Tighten the handle; 31. First limit slide groove; 32. Second slot;

[0027] 40. Limiting piece; 41. Guide column;

[0028] 50. Stop plate. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] In the following embodiments, the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limitations on the present invention.

[0031] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Reference Figures 1 to 7A foldable tensioner includes a main body 10, a fixed shaft 20 and a tensioning handle 30. The main body 10 and the tensioning handle 30 are connected and assembled by the fixed shaft 20. The tensioning handle 30 can rotate with the fixed shaft 20 as the axis. The fixed shaft 20 is equipped with a ratchet 23. The fixed shaft 20 is a U-shaped structure with two half shafts 21. The middle of the U-shaped structure forms an empty groove for the tension belt to pass through. The ratchet 23 is provided with two half grooves 26 for the half shafts 21 to pass through. The ends of the two half shafts 21 are fixedly connected by a latch 22. The tensioning handle 30 is provided with a first limiting slide groove 31, and a stop plate 50 capable of being clamped into the gear teeth of the ratchet 23 is installed in the first limiting slide groove 31. The main body 10 is provided with a second limiting slide groove 13, and a limiting plate 40 capable of being clamped into the gear teeth of the ratchet 23 is installed in the second limiting slide groove 13. A connecting shaft 11 is provided on one side of the main base 10, a guide slot 12 is provided on the main base 10, a guide column 41 cooperating with the guide slot 12 is provided at the tail of the limiting plate 40, and the setting of the guide column 41 can prevent the limiting plate 40 from deviating to both sides.

[0033] The working principle of the foldable tensioner is as follows: before starting to tighten, first connect one drawstring set to the connecting shaft 11, and fix the other drawstring to the fixed shaft 20. When starting to tighten, first ensure that the limiting plate 40 is stuck on the ratchet 23 and the stop plate 50 is disengaged from the ratchet 23, and then open the tensioning handle 30. At this time, since the stop plate 50 is disengaged from the ratchet 23, the movement of the tensioning handle 30 and the fixed shaft 20 are independent of each other. Then, the stop plate 50 is stuck into the ratchet 23 to disengage the limiting plate 40 from the ratchet 23, and then the tensioning handle 30 is pressed down. At this time, the rotation of the tensioning handle 30 will drive the fixed shaft 20 to rotate, and the rotation of the fixed shaft 20 will drive the drawstring to tighten. Repeat the above tightening steps until it is fully tightened.

[0034] To facilitate the use of the foldable tensioner, a connecting end column 24 is provided on the end face of the fixed shaft 20. The connecting end column 24 is of standardized design and is dedicated to external power tools, so that the tensioner can be compatible with various specifications of power tools on the market, increasing the versatility and interchangeability of the equipment. This design breaks through the limitation of pure manual operation of traditional tensioners. By connecting power tools easily and quickly, users can flexibly choose the power source according to the operation requirements, and can easily cope with the bundling of light or heavy goods, greatly improving the operation efficiency, especially in logistics scenarios that require rapid response and efficient processing. The advantages are particularly obvious.

[0035] Furthermore, in order to improve the stability and durability of the foldable tensioner, the main body 10 is provided with an oil storage seat 15 at the fixed shaft 20, and an oil storage tank 16 is provided in the oil storage seat 15. The oil storage tank 16 is used to place lubricating grease to lubricate the connection between the main body 10 and the fixed shaft 20. This ingenious design not only simplifies the maintenance process, but also significantly enhances the lubrication effect of the connection between the main body 10 and the fixed shaft 20, effectively reducing wear under long-term use and extending the service life of the equipment. The oil storage tank 16 is an annular groove open to the axis, and the ratchet 23 is provided with a convex portion 25. The convex portion 25 cooperates with the two half shafts 21 to form a rotating portion, and the rotating portion is located in the oil storage seat 15 and seals the open portion of the oil storage tank 16. This design ensures that the grease can fully cover the key rotating parts. At the same time, the protrusion 25 on the ratchet 23 and the rotating part formed by the two half shafts 21 cleverly seal the opening of the oil storage tank 16, which not only ensures the effective retention of grease, but also prevents the intrusion of external impurities.

[0036] In order to facilitate regular grease replenishment and replacement, the outer surface of the oil storage seat 15 is specially provided with an oil filling port and is sealed with a plug cover 17, which not only maintains the overall aesthetics, but also ensures convenience and sealing of use, prevents grease leakage and is easy for daily inspection and maintenance.

[0037] The utility model also has a storage locking design, and the main body 10 is provided with a first card slot 14, and the first card slot 14 cooperates with the stop plate 50 to lock the tensioning handle 30. The tensioning handle 30 is provided with a second card slot 32 that can cooperate with the limiting plate 40, and the second card slot 32 is used to push the limiting plate 40 forward when the tensioning handle 30 is pressed down, so that the limiting plate 40 is clamped into the ratchet 23 to lock the ratchet 23.

[0038] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A foldable tensioner, comprising a main body seat (10), a fixed shaft (20) and a tensioning handle (30), wherein the main body seat (10) and the tensioning handle (30) are connected and assembled via the fixed shaft (20), and the tensioning handle (30) can rotate around the fixed shaft (20); a ratchet (23) is assembled on the fixed shaft (20), and a first limiting slide groove (31) is provided on the tensioning handle (30), and a stop plate (50) capable of being engaged with the gear teeth of the ratchet (23) is assembled in the first limiting slide groove (31); a second limiting slide groove (13) is provided on the main body seat (10), and a limiting plate (40) capable of being engaged with the gear teeth of the ratchet (23) is assembled in the second limiting slide groove (13); characterized in that: A connecting end column (24) is provided on the end surface of the fixed shaft (20), and the connecting end column (24) is used for connecting an external electric tool.

2. A foldable tensioner according to claim 1, characterized in that: The fixed shaft (20) is in a U-shaped structure with two half shafts (21), an empty slot for the pull belt to pass through is formed in the middle of the U-shaped structure, and two half slots (26) for the half shafts (21) to pass through are arranged on the ratchet wheel (23).

3. A foldable tensioner according to claim 2, characterized in that: The ends of the two half shafts (21) are fixedly connected via a latch (22).

4. A foldable tensioner according to claim 2, characterized in that: The main body seat (10) is provided with an oil storage seat (15) at the fixed shaft (20), and an oil storage tank (16) is provided in the oil storage seat (15). The oil storage tank (16) is used to store lubricating grease to lubricate the connection between the main body seat (10) and the fixed shaft (20).

5. A foldable tensioner according to claim 4, characterized in that: The oil storage groove (16) is an annular groove open to the axis. The ratchet wheel (23) is provided with a convex portion (25). The convex portion (25) cooperates with the two half shafts (21) to form a rotating portion. The rotating portion is located in the oil storage seat (15) and seals the open portion of the oil storage groove (16).

6. A foldable tensioner according to claim 4, characterized in that: An oil filling port is arranged on the outer peripheral surface of the oil storage seat (15), and a plugging cover (17) is mounted on the oil filling port.

7. A foldable tensioner according to claim 1, characterized in that: The main body seat (10) is provided with a guide slot (12), and the tail of the limiting piece (40) is provided with a guide column (41) that cooperates with the guide slot (12).

8. The foldable tensioner according to claim 1, characterized in that: The main body seat (10) is provided with a first clamping groove (14), and the first clamping groove (14) cooperates with the stop plate (50) to lock the tensioning handle (30).

9. The foldable tensioner according to claim 1, characterized in that: The tightening handle (30) is provided with a second slot (32) capable of cooperating with the limiting sheet (40).

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