Binding device with improved structure

Abstract

The utility model provides a binding device with an improved structure, which relates to the technical field of binding devices and comprises a connecting cylinder, two ratchet wheels are connected to the outer surface of the connecting cylinder, four bearings are connected to the outer surface of the connecting cylinder, threaded rods are connected to the inner rings of every two bearings, and the threaded rods are connected to the inner rings of every two bearings. The outer surfaces of the two threaded rods are jointly in threaded connection with two extrusion blocks, the outer surfaces of the two threaded rods are jointly connected with a synchronizing mechanism, and the outer surfaces of the two threaded rods are both connected with rotary knobs. According to the binding device with the improved structure, a binding belt penetrates through two extrusion blocks, then a rotary knob is rotated, two threaded rods rotate synchronously under transmission of a synchronizing mechanism, the two extrusion blocks get close to each other under rotation of the threaded rods to extrude and fix the binding belt, the binding belt is prevented from sliding, and the rotary knob is rotated reversely, so that the binding belt is prevented from sliding. And the distance between the two extrusion blocks can be increased, so that the distance between the extrusion blocks can be adjusted according to the thickness of a binding belt, and the application range of the binding device is widened.

Description

Technical Field

[0001] This utility model relates to a structurally improved binding device, belonging to the technical field of binding devices. Background Technology

[0002] In logistics and transportation, a binding device is also known as a binding strap or tethering device. The binding device works by wrapping the binding strap around its own ratchet structure and then rotating it in one direction, thereby adjusting the length and tightening force of the strap to securely bind the goods. Binding devices have advantages such as locking, not easy to fall off, safety and reliability, lightweight and portable, and simple operation.

[0003] Currently, the binding strap is usually wrapped directly around the ratchet structure and tightened through friction. However, this method lacks a fixing device, making the binding strap prone to slippage. Furthermore, the gap size within the ratchet structure is fixed and cannot be adjusted according to the binding strap, resulting in the binding device being unable to tighten binding straps with significant thickness variations. To address these issues, we have provided a structurally improved binding device. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a structurally improved binding device. The specific technical solution is as follows:

[0005] An improved binding device includes a connecting cylinder with two ratchet wheels connected to its outer surface, four bearings connected to its outer surface, a threaded rod connected to the inner ring of every two bearings, two pressing blocks connected to the outer surfaces of the two threaded rods, a synchronization mechanism connected to the outer surfaces of the two threaded rods, and a knob connected to the outer surfaces of the two threaded rods. A first connecting shell is movably connected to the outer surface of the connecting cylinder, a limit mechanism is connected to the outer surface of the first connecting shell, a second connecting shell is movably connected to the outer surface of the connecting cylinder, two transmission mechanisms are connected to the outer surface of the second connecting shell, and a handle is connected to the outer surface of the second connecting shell.

[0006] Preferably, the synchronization mechanism includes two synchronization wheels, and a synchronization belt is fitted onto the outer surfaces of the two synchronization wheels.

[0007] Preferably, the first connecting shell includes a connecting bottom shell, and a tethering rod is connected to the outer surface of the connecting bottom shell.

[0008] Preferably, the limiting mechanism includes two limiting grooves, the inner sidewalls of the two limiting grooves are slidably connected to a limiting plate, the outer surface of the limiting plate is connected to a baffle, the outer surface of the baffle is connected to the outer surface of the limiting plate, and the outer surface of the limiting plate and the outer surface of the baffle are connected to a first elastic element.

[0009] Preferably, each of the transmission mechanisms includes a connecting block, and a limit rod is slidably connected inside each of the two connecting blocks. A second elastic element is connected to the outer surface of each limit rod and the outer surface of each connecting block.

[0010] Preferably, the outer surface of the connecting cylinder is connected to a plurality of limiting blocks.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This improved binding device works by passing one end of the binding strap through two compression blocks. Turning a knob causes two threaded rods to rotate synchronously under the transmission of a synchronizing mechanism. As the threaded rods rotate, the two compression blocks move closer together to compress and fix the binding strap, preventing it from slipping. Turning the knob in the opposite direction increases the distance between the two compression blocks, allowing the spacing to be adjusted according to the thickness of the binding strap. This enables the device to tighten binding straps of different thicknesses, increasing the range of applications for the binding device. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 This is a front view structural diagram of the connecting cylinder in this utility model;

[0016] Figure 4 This is a top-view cross-sectional structural diagram of the connecting cylinder in this utility model.

[0017] Figure Descriptions: 1. Connecting cylinder; 2. Ratchet; 3. Bearing; 4. Threaded rod; 5. Synchronizing mechanism; 501. Synchronizing pulley; 502. Synchronizing belt; 6. Knob; 7. First connecting shell; 701. Connecting bottom shell; 702. Tie rod; 8. Limiting mechanism; 801. Limiting groove; 802. Limiting plate; 803. Baffle; 804. First elastic element; 9. Second connecting shell; 10. Transmission mechanism; 101. Connecting block; 102. Limiting rod; 103. Second elastic element; 104. Limiting block; 11. Handle; 12. Pressing block. Detailed Implementation

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 In this utility model, an improved binding device includes a connecting cylinder 1. Two ratchet wheels 2 are connected to the outer surface of the connecting cylinder 1. Four bearings 3 are connected to the outer surface of the connecting cylinder 1. A threaded rod 4 is connected to the inner ring of each pair of bearings 3. Two pressing blocks 12 are threadedly connected to the outer surfaces of the two threaded rods 4. A synchronization mechanism 5 is connected to the outer surfaces of the two threaded rods 4. A knob 6 is connected to the outer surface of each threaded rod 4. A first connecting shell 7 is movably connected to the outer surface of the connecting cylinder 1. A limit mechanism 8 is connected to the outer surface of the first connecting shell 7. A second connecting shell 9 is movably connected to the outer surface of the connecting cylinder 1. Two transmission mechanisms 1 are connected to the outer surface of the second connecting shell 9. 0. A handle 11 is attached to the outer surface of the second connecting shell 9. By passing one end of the binding strap through the two compression blocks 12 and then turning the knob 6, the two threaded rods 4 rotate synchronously under the transmission of the synchronizing mechanism 5. The two threaded rods 4 can move closer to each other to clamp the binding strap and prevent it from slipping. Turning the knob 6 in the opposite direction can increase the spacing of the compression blocks 12, which can tighten binding straps of different thicknesses. When the second connecting shell 9 is rotated in a cycle, the transmission mechanism 10 will drive the connecting cylinder 1 and the ratchet 2 to rotate. Under the restriction of the limiting mechanism 8, the connecting cylinder 1 and the ratchet 2 rotate in one direction, thereby wrapping the binding strap around the connecting cylinder 1 and completing the tightening of the binding strap.

[0021] The synchronization mechanism 5 includes two synchronization wheels 501, and a synchronization belt 502 is sleeved on the outer surface of the two synchronization wheels 501. The first connecting shell 7 includes a connecting bottom shell 701, and a tie rod 702 is connected to the outer surface of the connecting bottom shell 701. The limiting mechanism 8 includes two limiting grooves 801, and a limiting plate 802 is slidably connected to the inner sidewalls of the two limiting grooves 801. A baffle 803 is connected to the outer surface of the limiting plate 802, and the outer surface of the baffle 803 is connected to the outer surface of the limiting plate 802. A first elastic element 804 is connected to the outer surface of the limiting plate 802 and the outer surface of the baffle 803. When the ratchet 2 rotates, it pushes the limiting plate 802 to move in the limiting groove 801. The first elastic element 804 pushes the limiting plate 802 out. When the ratchet 2 reverses, it is blocked by the limiting plate 802, so that the connecting cylinder 1 can only rotate in one direction.

[0022] Each transmission mechanism 10 includes a connecting block 101. A limit rod 102 is slidably connected inside each of the two connecting blocks 101. A second elastic element 103 is connected to the outer surface of each limit rod 102 and the outer surface of each connecting block 101. Multiple limit blocks 104 are connected to the outer surface of the connecting cylinder 1. When the second connecting shell 9 rotates clockwise, the limit rod 102 will drive the limit block 104 to rotate. When the second connecting shell 9 rotates counterclockwise, the limit rod 102 will rotate around the limit block 104.

[0023] The working principle of this utility model is as follows:

[0024] In use, one end of the binding strap is wrapped around the binding rod 702, and the other end of the binding strap is passed through the two compression blocks 12. The knob 6 is turned, and the two threaded rods 4 are rotated synchronously under the transmission of the synchronous wheel 501 and the synchronous belt 502. Under the rotation of the threaded rods 4, the two compression blocks 12 move closer to each other and clamp the binding strap. The second connecting shell 9 is rotated in a cycle, and the limiting rod 102 will drive the limiting block 104 and the connecting cylinder 1 to rotate. The limiting plate 802 will restrict the ratchet 2 from rotating in one direction, so that the binding strap is wrapped around the connecting cylinder 1, thereby achieving the tightening of the binding strap.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A structurally improved binding device comprising a connecting tube (1), characterized in that: Two ratchet wheels (2) are connected to the outer surface of the connecting cylinder (1). Four bearings (3) are connected to the outer surface of the connecting cylinder (1). A threaded rod (4) is connected to the inner ring of each pair of bearings (3). Two pressing blocks (12) are threadedly connected to the outer surfaces of the two threaded rods (4). A synchronization mechanism (5) is connected to the outer surfaces of the two threaded rods (4). A knob (6) is connected to the outer surface of the connecting cylinder (1). A first connecting shell (7) is movably connected to the outer surface of the connecting cylinder (1). A limit mechanism (8) is connected to the outer surface of the first connecting shell (7). A second connecting shell (9) is movably connected to the outer surface of the connecting cylinder (1). Two transmission mechanisms (10) are connected to the outer surface of the second connecting shell (9). A handle (11) is connected to the outer surface of the second connecting shell (9).

2. A structurally improved binder as claimed in claim 1, wherein: The synchronization mechanism (5) includes two synchronization pulleys (501), and the outer surfaces of the two synchronization pulleys (501) are fitted with a synchronization belt (502).

3. The improved binding device as claimed in claim 1, wherein: The first connecting shell (7) includes a connecting bottom shell (701), and a tethering rod (702) is connected to the outer surface of the connecting bottom shell (701).

4. The structurally improved binding device according to claim 1, characterized in that: The limiting mechanism (8) includes two limiting grooves (801), and the inner sidewalls of the two limiting grooves (801) are slidably connected to a limiting plate (802). A baffle (803) is connected to the outer surface of the limiting plate (802), and the outer surface of the baffle (803) is connected to the outer surface of the limiting plate (802). A first elastic element (804) is connected to the outer surface of the limiting plate (802) and the outer surface of the baffle (803).

5. The improved binder of claim 1 wherein: Each of the transmission mechanisms (10) includes a connecting block (101), and a limit rod (102) is slidably connected inside both connecting blocks (101). The outer surface of each limit rod (102) is connected to the outer surface of each connecting block (101) by a second elastic element (103).

6. The improved binder of claim 1 wherein: The outer surface of the connecting cylinder (1) is connected to a plurality of limiting blocks (104).

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