A new truck tightener wrench

Abstract

The utility model belongs to the technical field of tightener auxiliary instrument, provide a new type truck tightener wrench, including installation body, ratchet wheel shaft and working rod, be provided with the installation space for installing ratchet wheel shaft on the installation body, be provided with the gear on ratchet wheel shaft, ratchet wheel shaft with installation space rotatory connection, working rod with ratchet wheel shaft connects, still include pawl and stop component, pawl includes two clamping teeth and limit portion, two clamping teeth are mutually symmetrical, stop component is used for limiting the limit portion, makes one clamping tooth of pawl with gear meshing. The utility model can drive to the tight direction and the loose direction of the winding pipe, so as to adjust the tightness of the truck rope, improve the flexibility of use.

Description

Technical Field

[0001] This utility model belongs to the technical field of rope tensioner auxiliary equipment, and in particular relates to a new type of truck rope tensioner wrench. Background Technology

[0002] Truck rope tensioners are devices installed on the side beams of the truck bed, numbering in the hundreds, used to secure and fasten cargo. The rope is looped around the top of the cargo and then secured using the tensioner. Compared to traditional hand-knotting methods, using rope tensioners to secure cargo is simpler and more reliable. Figure 9 and Figure 10 The structure of the rope tensioner is shown.

[0003] In the prior art, utility model patent with publication number CN220783746U discloses a multi-functional truck rope tensioner wrench, including: a mounting body, a ratchet, a pawl, a ratchet shaft, a working rod, a handle, and a spring plate. However, this prior art has the following problems:

[0004] (1) Unidirectional drive: Existing rope tightening wrenches use a unidirectional ratchet design, which can only drive the rope tightening device's winding tube to rotate in one direction. After the rope is tightened, it is sometimes necessary to adjust the tightness of certain parts, which requires rotating the rope tightening device in the opposite direction. Existing wrenches cannot achieve reverse drive, which limits the flexibility of use.

[0005] (2) Slippage problem: Both the ratchet shaft and the winding tube are cylindrical in design. When driving the winding tube, slippage is likely to occur between the two, resulting in poor stability during operation.

[0006] (3) Poor adaptability: Due to the different distances between the insertion hole and the end face of the winding tube furthest from the main body of the tensioner for different specifications of the tensioner tube, there is a distance difference between the end face of the winding tube and the mounting body. When driving the winding tube, the range of motion of the mounting body is large, resulting in poor stability.

[0007] In addition, the working lever of the existing multi-functional truck rope tensioner wrench has a smooth body, which easily slips between itself and the insertion hole of the cable reel. Furthermore, the handle surface is also smooth, resulting in low friction between the handle and the user's hand, which may also lead to slippage during use. To ensure effective use, greater grip strength is required.

[0008] In view of the above problems, this application provides a new type of truck rope tensioner wrench. Utility Model Content

[0009] This invention provides a novel truck rope tensioner wrench, which aims to solve the problems mentioned in the background art.

[0010] This utility model is implemented as follows: a novel truck rope tensioner wrench includes a mounting body, a ratchet shaft, and a working rod; the mounting body is provided with a mounting space for mounting the ratchet shaft, and the ratchet shaft is provided with gear teeth; the ratchet shaft is rotatably connected to the mounting space, and the working rod is connected to the ratchet shaft;

[0011] It also includes a pawl and a stop assembly; the pawl includes two teeth and a limiting part, the two teeth are symmetrical to each other, and the stop assembly is used to limit the limiting part so that one of the teeth of the pawl engages with the wheel teeth.

[0012] Optionally, the stop assembly includes a spring and a stop member. The mounting body has a mounting groove, the spring is installed in the mounting groove, and the stop member is connected to the end of the spring near the pawl. The stop member is used to limit the limiting part.

[0013] Optionally, the stop can be a sphere or a wedge.

[0014] Optionally, the portion of the ratchet shaft extending out of the mounting space is provided with an arc-shaped recess.

[0015] Optionally, a threaded groove is provided on the arc-shaped recess, and the working rod is threadedly connected to the threaded groove.

[0016] Optionally, the new truck tensioner wrench further includes at least one washer and a retaining ring; the washer includes an annular portion and a filling portion, the annular portion and the filling portion being an integral structure; the ratchet shaft passes through the annular portion, and the filling portion is located at the arcuate recess of the ratchet shaft; the retaining ring is sleeved on the ratchet shaft for limiting the washer.

[0017] Optionally, the working lever gradually tapers from one end near the ratchet shaft to the end away from the ratchet shaft, and the surface of the working lever is provided with anti-slip ripples, which are spiral-shaped.

[0018] Optionally, the new truck tensioner wrench also includes a pin that passes through the mounting space and a pawl that is rotatably connected to the pin.

[0019] Optionally, the new truck tensioner wrench also includes a handle connected to the mounting body, wherein the end of the handle away from the mounting body is provided with an inclined cut surface, the angle between the cut surface and the cross-section of the handle is 10 degrees and not more than 10 degrees.

[0020] Optionally, the handle is provided with an anti-slip part, the handle has a tubular structure, and the handle is provided with a recessed part that is recessed into the inner wall; the mounting body is connected to an extension rod, the extension rod is provided with a groove, and the recessed part extends into the groove.

[0021] The beneficial effects achieved by this utility model are as follows: A novel truck rope tensioner wrench, by moving the pawl, causes one of its teeth to engage with the teeth on the ratchet shaft, while the other tooth remains unengaged. Rotating the mounting body causes the pawl to rotate, and one of the pawl's teeth drives the ratchet shaft to rotate in a first direction via the ratchet shaft's teeth. Conversely, moving the pawl causes the other tooth to engage with the ratchet shaft's teeth, allowing the mounting body to rotate, which in turn drives the ratchet shaft to rotate in a second direction. This achieves control over both tightening and loosening the rope on the cable, facilitating adjustment of the truck rope's tension and improving its usability.

[0022] The arc-shaped recess is designed to allow the ratchet shaft to contact the outer arc surface of the winding tube, resulting in a larger contact area between the ratchet shaft and the winding tube. This reduces or prevents slippage of the ratchet shaft relative to the winding tube during use, thereby improving the stability of this new truck rope tightener wrench during operation.

[0023] The number of shims can be appropriately added or reduced, and the retaining ring can be sleeved on the ratchet shaft. The retaining ring limits the ratchet shaft, so that the retaining ring contacts the end face of the winding tube away from the main body of the rope tensioner. This can effectively improve the stability of the new truck rope tensioner wrench during use. Since the retaining ring contacts the end face of the winding tube away from the main body of the rope tensioner, the rotation relative to the axis of the working rod can be reduced during the use of the new truck rope tensioner wrench.

[0024] The working lever tapers gradually from the end closest to the ratchet shaft to the end furthest from the ratchet shaft. This design facilitates insertion of the working lever into the socket. The surface of the working lever is provided with anti-slip corrugations, which are spiral-shaped and effectively reduce the slippage of the working lever relative to the socket.

[0025] The anti-slip parts on the handle can increase the friction between the handle and the user's hand. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the novel truck rope tightener wrench provided by this utility model.

[0028] Figure 2 This is an exploded view of the novel truck rope tightener wrench provided by this utility model.

[0029] Figure 3 This is a three-dimensional structural diagram of the novel truck rope tightener wrench provided by this utility model, excluding the handle.

[0030] Figure 4 This is a partial cross-sectional view of the novel truck rope tightener wrench provided by this utility model.

[0031] Figure 5 This is a three-dimensional structural diagram of the mounting body of the novel truck rope tightener wrench provided by this utility model.

[0032] Figure 6 This is a cross-sectional structural diagram of the mounting body of the novel truck rope tightener wrench provided by this utility model.

[0033] Figure 7 This is a three-dimensional structural diagram of the stop assembly of the novel truck rope tightener wrench embodiment one provided by this utility model.

[0034] Figure 8 This is a three-dimensional structural diagram of the stop assembly of the novel truck rope tightener wrench embodiment two provided by this utility model.

[0035] Figure 9 This is a three-dimensional structural diagram of an existing rope tensioner provided by this utility model.

[0036] Figure 10 This is a schematic diagram of the structure of the new truck rope tensioner wrench provided by this utility model in conjunction with an existing rope tensioner.

[0037] Figure 11 This is a partial structural diagram of the handle of the novel truck rope tightener wrench provided by this utility model.

[0038] Explanation of reference numerals in the attached figures

[0039] 1-Mounting body, 11-Mounting space, 12-Extension rod, 13-Groove, 14-Mounting slot, 2-Ratchet shaft, 21-Gear tooth, 22-Arc-shaped recess, 23-Threaded groove, 3-Working rod, 4-Pawl, 41-Clamping tooth, 42-Limiting part, 5-Stop assembly, 51-Spring, 52-Stop part, 6-Washer, 61-Circular part, 62-Filling part, 7-Snap ring, 8-Pin shaft, 9-Handle, 91-Cut surface, 92-Anti-slip part, 93-Recess, 10-Tightener, 101-Tightener body, 102-Winding tube, 103-Socket. Detailed Implementation

[0040] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] The terms "first" and "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps, operations, components, or modules is not limited to the listed steps, operations, components, or modules, but may optionally include steps, operations, components, or modules not listed, or may optionally include other steps, operations, components, or modules inherent to such processes, methods, products, or devices.

[0042] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] like Figure 9 and Figure 10 As shown, the existing rope tensioner 10 includes a rope tensioner body 101, a winding tube 102 rotatably connected to the rope tensioner body 101, and a ratchet assembly (not shown in the figure); the winding tube 102 is used to wind the rope, and the winding tube 102 is provided with a socket 103.

[0044] Example 1

[0045] like Figures 1 to 7 , Figure 9 , Figure 10 and Figure 11 As shown, an exemplary embodiment of a novel truck rope tensioner wrench includes a mounting body 1, a ratchet shaft 2, and a working lever 3. The mounting body 1 has a mounting space 11 for mounting the ratchet shaft 2, and the ratchet shaft 2 has teeth 21. The ratchet shaft 2 is rotatably connected to the mounting space 11, and the working lever 3 is connected to the ratchet shaft 2.

[0046] The new truck tensioner wrench also includes a pawl 4 and a stop assembly 5. The pawl 4 includes two teeth 41 and a limiting portion 42. The two teeth 41 are symmetrical to each other. The stop assembly 5 is used to limit the limiting portion 42, so that one of the teeth 41 of the pawl 4 engages with the wheel tooth 21.

[0047] The mounting body 1 has a notch 15 on its side for the pawl 4 to extend from, with both sides of the pawl 4 extending from the notch 15. During use, moving the pawl 4 causes one of its teeth 41 to engage with the tooth 21 on the ratchet shaft 2, while the other tooth 41 remains unengaged. (See also...) Figure 6 At this point, with the ratchet shaft 2 as the center, the mounting body 1 is rotated clockwise. The mounting body 1 will drive the pawl 4 to rotate. One of the teeth 41 of the pawl 4 drives the ratchet shaft 2 to rotate in the first direction through the gear tooth 21. The working rod 3 is inserted into the insertion hole 103 of the rope tensioner 10. The ratchet shaft 2 drives the working rod 3 to rotate. The working rod 3 rotates around the winding tube 102, thereby driving the winding tube 102 of the rope tensioner 10.

[0048] After rotating a certain angle, turning the mounting body 1 counterclockwise causes the mounting body 1 to rotate the pawl 4. The pawl 4 rotates a certain amount relative to the mounting body 1 itself. At the same time, the stop assembly 5 limits the pawl 4, preventing one of the teeth 41 from driving the ratchet shaft 2 to rotate via the gear tooth 21. Conversely, following the same principle, turning the pawl 4 causes the other tooth 41 of the pawl 4 to mesh with the gear tooth 21 of the ratchet shaft 2. This allows the rotation of the mounting body 1 to drive the pawl 4 to rotate, which in turn drives the ratchet shaft 2 to rotate in the second direction. The first and second directions are opposite.

[0049] This enables the winding tube 102 to be driven in both the tightening and loosening directions, facilitating the adjustment of the truck rope's tension and improving its flexibility of use.

[0050] Specifically, the new truck tensioner wrench also includes a pin 8 that passes through the mounting space 11 and the pawl 4, rotatably connecting the pawl 4 to the mounting body 1. Figure 6 As shown, when the mounting body 1 rotates counterclockwise, the first locking tooth 41 of the pawl 4 is subjected to the reaction force of the gear tooth 21, causing the pawl 4 to rotate clockwise around the pin 8, thereby enhancing the meshing strength between the first locking tooth 41 and the gear tooth 21. Through this design, the pawl 4 can more effectively drive the ratchet shaft 2 to rotate, further improving the working efficiency and reliability of the rope tightener wrench.

[0051] Specifically, such as Figure 4 and Figure 7As shown, the stop assembly 5 includes a spring 51 and a stop member 52. The stop member 52 is a sphere. The mounting body 1 has a mounting groove 14, and the spring 51 is installed in the mounting groove 14. The stop member 52 is connected to the end of the spring 51 near the pawl 4. The stop member 52 is used to limit the limiting part 42. The spring 51 provides elastic force to the stop member 52, causing the stop member 52 to contact the limiting part 42 of the pawl 4.

[0052] like Figure 6 As shown, the two sides of the limiting part 42 are inclined surfaces. When one of the teeth 41 of the pawl 4 engages with the gear tooth 21, the stop 52 contacts the inclined surface of the limiting part 42. When the mounting body 1 is rotated counterclockwise, the pawl 4 rotates slightly relative to the mounting body 1, and one of the teeth 41 slides out from the bottom of the gear tooth 21. At the same time, the stop 52 moves into the mounting groove 14, and the spring 51 is compressed. Subsequently, the tooth 41 passes over the top of the gear tooth 21, and the restoring force of the spring 51 drives the pawl 4 to move through the stop 52, so that one of the teeth 41 of the pawl 4 enters the bottom of the next gear tooth 21, thereby limiting the pawl 4.

[0053] When it is necessary for one of the locking teeth 41 to disengage from the gear tooth 21 and for the other locking tooth 41 to engage with the gear tooth 21, simply move the pawl 4 from the outside of the mounting body 1. Since the stop 52 is a sphere, the pawl 4 will press the stop 52 into the mounting groove 14 during its movement. After the pawl 4 passes the stop 52, the stop 52 is then pushed out by the spring. The spherical shape ensures that the pawl 4 moves smoothly under external force and passes the stop 52.

[0054] Specifically, the portion of the ratchet shaft 2 extending out of the mounting space 11 is provided with an arc-shaped recess 22. For example... Figure 2 and Figure 10 As shown, the arc-shaped recess 22 is designed to make the ratchet shaft 2 contact the outer arc surface of the winding tube 102, thereby increasing the contact area between the ratchet shaft 2 and the winding tube 102, thus reducing or avoiding slippage of the ratchet shaft 2 relative to the winding tube 102 during use, and improving the stability of the new truck rope tightener wrench during use.

[0055] Specifically, the arc-shaped recess 22 is provided with a threaded groove 23, and the working rod 3 is threadedly connected to the threaded groove 23. The threaded groove 23 facilitates the connection between the working rod 3 and the arc-shaped recess 22. When the working rod 3 is inserted into the insertion hole 103, it can be further inserted to make the arc-shaped recess 22 and the winding tube 102 in close contact.

[0056] Specifically, the new truck rope tightener wrench also includes at least one washer 6 and a retaining spring 7; the washer 6 includes an annular portion 61 and a filling portion 62, which are integrally formed; the ratchet shaft 2 passes through the annular portion 61, and the filling portion 62 is located at the arc-shaped recess 22 of the ratchet shaft 2; the retaining spring 7 is sleeved on the ratchet shaft 2 to limit the washer 6. In actual use, the number of washer 6 can be appropriately added or reduced according to the specific specifications of the rope tightener 10, and the retaining spring 7 is sleeved on the ratchet shaft 2. The retaining spring 7 limits the ratchet shaft 2, so that the retaining spring 7 contacts the end face of the winding tube 102 away from the rope tightener body. This can effectively improve the stability of the new truck rope tightener wrench during use. Since the end face of the retaining spring 7 contacts the end face of the winding tube 102 away from the rope tightener body, the rotation relative to the axis of the working rod 3 can be reduced during the use of the new truck rope tightener wrench.

[0057] Specifically, the working lever 3 gradually tapers from the end near the ratchet shaft 2 to the end away from the ratchet shaft 2. This structural design facilitates the insertion of the working lever 3 into the insertion hole 103. The surface of the working lever 3 is provided with anti-slip corrugations, which are spiral-shaped. The anti-slip corrugations effectively reduce the slippage of the working lever 3 relative to the insertion hole 103.

[0058] Specifically, the new truck tensioner wrench also includes a handle 9, which is connected to the mounting body 1. The end of the handle 9 away from the mounting body 1 has an inclined cut surface 91, the angle between the cut surface 91 and the cross-section of the handle 9 being 0 to 70 degrees, and not 0 degrees. For example... Figure 11 As shown, Figure 11 The median angle α is between 0 and 70 degrees, and α is not 0 degrees. In practical applications, the structure of the cross-section 91, as described by an operator in the art, is called a net skid. The winding tube 102 of the rope tensioner 10 is usually provided with a rope hook (not shown in the figure, please refer to the utility model patent CN220783746U in the prior art).

[0059] After the truck is loaded, to ensure the safety of the goods during transportation, it is necessary to tie and cover the goods with netting. The goods are tied with ropes and then covered with netting. When covering with netting, the net is usually pulled taut to ensure a close fit between the net and the hooks on the tensioner 10. This process is not only cumbersome but also physically demanding for the person pulling the net. To simplify the operation and reduce workload, when the net needs to be tightened, the user can position the net lever at the end of the handle 9 at the end of the hook, allowing the end of the hook to extend into the handle 9. Then, using leverage, the user can easily press the handle 9, pulling the net closer. Continue pressing until the axis of the handle 9 is aligned with or nearly aligned with the axis of the hook. At this point, the net can easily move along the surface of the handle 9 and then be attached to the hooks. It should be noted that for the net to be securely fixed, the end of the hook should point towards or near the ground to ensure that the hook can engage the net openings. During the operation of the novel rope tightening wrench in this embodiment, the rope tightener 10 is in a stationary state.

[0060] Specifically, the handle 9 is provided with an anti-slip part 92, which is knurled to increase the friction between the handle 9 and the user's hand. The handle 9 has a tubular structure and a recessed part 93 that is recessed into the inner wall, formed by external force. The mounting body 1 is connected to an extension rod 12, which has a groove 13, into which the recessed part 93 extends. This creates a snap-fit ​​connection between the extension rod 12 and the handle 9.

[0061] Example 2

[0062] like Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that the stop 52 is a wedge-shaped block. The working principle of the wedge-shaped stop 52 is the same as that of the spherical structure, and will not be described in detail here.

[0063] The exemplary embodiments of this application can be combined with each other, and the exemplary embodiments obtained by combination also fall within the scope of this application.

[0064] This application uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A novel truck rope tensioner wrench, comprising a mounting body (1), a ratchet shaft (2), and a working lever (3); the mounting body (1) is provided with a mounting space (11) for mounting the ratchet shaft (2), and the ratchet shaft (2) is provided with gear teeth (21); the ratchet shaft (2) is rotatably connected to the mounting space (11), and the working lever (3) is connected to the ratchet shaft (2); characterized in that: It also includes a pawl (4) and a stop assembly (5); the pawl (4) includes two teeth (41) and a limiting part (42), the two teeth (41) are symmetrical to each other, and the stop assembly (5) is used to limit the limiting part (42) so that one of the teeth (41) of the pawl (4) meshes with the wheel tooth (21).

2. The novel truck rope tensioner wrench according to claim 1, characterized in that, The stop assembly (5) includes a spring (51) and a stop member (52). The mounting body (1) has a mounting groove (14). The spring (51) is installed in the mounting groove (14). The stop member (52) is connected to the end of the spring (51) near the pawl (4). The stop member (52) is used to limit the limiting part (42).

3. The novel truck rope tensioner wrench according to claim 2, characterized in that, The stop (52) is a sphere or a wedge.

4. The novel truck rope tensioner wrench according to claim 1, characterized in that, The portion of the ratchet shaft (2) extending out of the mounting space (11) is provided with an arc-shaped recess (22).

5. The novel truck rope tensioner wrench according to claim 4, characterized in that, The arc-shaped recess (22) is provided with a threaded groove (23), and the working rod (3) is threadedly connected to the threaded groove (23).

6. The novel truck rope tensioner wrench according to claim 4, characterized in that, It also includes at least one gasket (6) and a retaining ring (7); the gasket (6) includes an annular portion (61) and a filling portion (62), the annular portion (61) and the filling portion (62) are integrally formed; the ratchet shaft (2) passes through the annular portion (61), and the filling portion (62) is located at the arcuate recess (22) of the ratchet shaft (2); the retaining ring (7) is sleeved on the ratchet shaft (2) for limiting the gasket (6).

7. The novel truck rope tensioner wrench according to claim 1, characterized in that, The working rod (3) gradually tapers from one end near the ratchet shaft (2) to the other end away from the ratchet shaft (2), and the surface of the working rod (3) is provided with anti-slip ripples, which are spiral-shaped.

8. The novel truck rope tensioner wrench according to claim 1, characterized in that, It also includes a pin (8) that passes through the mounting space (11) and a pawl (4) that is rotatably connected to the pin (8).

9. The novel truck rope tensioner wrench according to claim 1, characterized in that, It also includes a handle (9), which is connected to the mounting body (1). The end of the handle (9) away from the mounting body (1) is provided with an inclined cut surface (91). The angle between the cut surface (91) and the cross-section of the handle (9) is 0 to 70 degrees, and is not 0 degrees.

10. The novel truck rope tensioner wrench according to claim 9, characterized in that, The handle (9) is provided with an anti-slip part (92), the handle (9) is a tube structure, and the handle (9) is provided with a recessed part (93) that is recessed into the inner wall; the mounting body (1) is connected to an extension rod (12), the extension rod (12) is provided with a groove (13), and the recessed part (93) extends into the groove (13).

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