A safety device that facilitates the application of force when tightening bolts with a torque wrench

Abstract

This utility model relates to the technical field of tower ring splicing and installation tools, and in particular to a safety device that facilitates the application of force by a torque wrench to tighten bolts. It includes a torque wrench and a wrench sleeve, with the sleeve fitted onto the tail end of the torque wrench and fixedly connected to it. A chain is attached to one side of the sleeve, and a hand strap is attached to the other end of the chain. This utility model, by fitting a sleeve onto a torque wrench, connecting the sleeve to a chain, and attaching a hand strap to the other end of the chain, allows the operator to adjust the sleeve's position. On the ground where the rings are spliced, the operator pulls the hand strap, transmitting force through the chain to the sleeve. The sleeve twists, causing the torque wrench to twist, thus tightening the bolt. This solves the problem of inconvenience and the risk of fall when tightening bolts from a height.

Description

Technical Field

[0001] This utility model relates to the technical field of tower ring splicing and installation tools, and in particular to a safety device that facilitates the application of force by a torque wrench to tighten bolts. Background Technology

[0002] Wind turbine towers are tall structures that support wind turbine generators, enabling them to reach higher altitudes and capture stronger, more stable high-altitude wind energy. Traditionally, wind turbine towers are mostly made of all-steel structures. However, with the continuous development of wind power technology, especially the increasing trend towards taller towers, all-steel towers face many challenges in terms of material costs, transportation difficulties, and stability. Therefore, hybrid wind turbine tower technology has emerged.

[0003] A precast concrete tower refers to a steel-concrete tower used in wind power generation. The tower of a wind turbine consists of two parts: an upper section made of conventional steel and a lower section made of concrete, connected by a transition section. In a precast concrete tower, the concrete tower section is assembled from precast concrete components, and after hoisting, a prestressed system is used to enhance its overall bending resistance.

[0004] The concrete tower is composed of precast concrete rings. Three special rubber sealing strips are affixed to the vertical seams of each ring, protruding above and below the ring's horizontal plane. Epoxy adhesive is applied to the vertical seams as needed. Double-ended bolts are inserted into the bolt holes. When the second ring is positioned, the ring is slightly adjusted according to its diameter, and the double-ended bolt is fully screwed into (or inserted into) the second ring (or into the pre-embedded sleeve). One square washer, one single-disc self-locking washer, and one nut are installed at each hole. The remaining rings are assembled in the same order. After assembly, all bolts are tightened symmetrically with a torque wrench. However, the bolts at the top of the rings are relatively high. When tightening with a torque wrench, there is no standing position, and when using a ladder, the distance to the wrench handle is far, making it inconvenient to apply force and posing a risk of falling from a height. Utility Model Content

[0005] To address the technical problem of inconvenience in applying force and the risk of falling when tightening bolts during the splicing and installation of mixed tower rings in the prior art, this utility model provides a safety device that facilitates the application of force with a torque wrench when tightening bolts.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A safety device for facilitating the application of force by a torque wrench to tighten bolts includes a torque wrench and a wrench sleeve, wherein the wrench sleeve is sleeved on the tail end of the torque wrench and the wrench sleeve is fixedly connected to the torque wrench.

[0008] A chain is provided on one side of the wrench sleeve, and a force-applying hand strap is provided on the other end of the chain.

[0009] Furthermore, the force-applying hand strap is circular.

[0010] Furthermore, a semi-circular ring is provided on one side of the wrench sleeve, and the iron chain is connected to the semi-circular ring.

[0011] Furthermore, the semicircular ring is welded to the wrench sleeve, and the end ring of the chain is fitted onto the semicircular ring.

[0012] Furthermore, a fastening hole is provided on one side of the wrench sleeve, and a fastening bolt is installed in the fastening hole.

[0013] Furthermore, the number of fastening holes is two, with the two fastening holes located on the same side of the wrench sleeve and spaced apart along the axial direction of the wrench sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model provides a safety device for facilitating the application of force with a torque wrench to tighten bolts. A wrench sleeve is fitted onto the torque wrench, and the sleeve is connected to a chain. A hand strap is attached to the other end of the chain. In use, the operator adjusts the position of the wrench sleeve, and on a surface with interlocking rings, pulls the hand strap. The force is transmitted to the wrench sleeve through the chain, causing it to twist, which in turn causes the torque wrench to twist, thus tightening the bolt. This solves the problem of inconvenience and the risk of fall when tightening bolts from a height. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the present invention.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Torque wrench, 2. Wrench socket, 3. Fastening bolt, 4. Fastening hole, 5. Semicircular ring, 6. Iron chain, 7. Hand strap for applying force. Detailed Implementation

[0020] The technical solution of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are not all embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that, unless otherwise specifically stated, the relative arrangement and numerical expressions of the components and steps described in these embodiments should not be construed as limiting the scope of this utility model.

[0022] The following description of exemplary embodiments is merely illustrative and is not intended to limit the present invention or its application or use in any way. Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail herein, but where applicable, such techniques, methods, and apparatus should be considered part of this specification.

[0023] This embodiment provides a safety device that facilitates the application of force when tightening bolts with a torque wrench, such as... Figure 1 The device includes a torque wrench 1 and a wrench sleeve 2. The wrench sleeve 2 is fitted onto the tail end of the torque wrench 1 and is fixedly connected to the torque wrench 1. Specifically, the fixed connection is achieved by providing two fastening holes 4 on one side of the wrench sleeve 2, with the two fastening holes 4 located on the same side of the wrench sleeve 2 and spaced apart along the axial direction of the wrench sleeve 2. Fastening bolts 3 are installed in the fastening holes 4. Tightening the fastening bolts 3 causes the fastening bolts 3 to press against the torque wrench 1, thereby fixing the torque wrench 1 and the wrench sleeve 2 together.

[0024] The number of fastening holes 4 can also be set to 1, 3, 4 or other numbers, depending on the requirements.

[0025] The connection between the torque wrench 1 and the wrench sleeve 2 can also be replaced by interference fit, snap-fit, or other connection methods, as long as a fixed connection can be achieved. In this embodiment, a fastening bolt connection method is used, which can achieve both connection and disassembly, making it convenient to use.

[0026] A chain 6 is provided on one side of the wrench sleeve 2, and a force-applying hand strap 7 is provided on the other end of the chain 6. The force-applying hand strap 7 is circular. The circular force-applying hand strap 7 is convenient for gripping and applying force.

[0027] A semi-circular ring 5 is provided on one side of the wrench sleeve 2, and the iron chain 6 is connected to the semi-circular ring 5. Specifically, the semi-circular ring 5 is welded to the wrench sleeve 2, and the iron ring at the end of the iron chain 6 is fitted onto the semi-circular ring 5.

[0028] In use, insert the torque wrench 1 into the wrench sleeve 2, and use the fastening bolt 3 to fix the wrench sleeve 2 and torque wrench 1 in place, ensuring that the torque wrench 1 will not slip off. Place the chain 6 onto the semi-circular ring 5, and then weld the semi-circular ring 5 to the wrench sleeve 2. Install the force-applying strap 7 onto the end of the chain 6. Then, place the torque wrench 1 on the bolt to be tightened. The operator standing on the ground holds the force-applying strap 7 and applies force by pulling the strap 7. The force is transmitted sequentially through the chain 6, the wrench sleeve 2, and the torque wrench 1 to the bolt to be tightened, thus completing the bolt tightening remotely.

[0029] The above specific embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A safety device that facilitates the application of force by a torque wrench to tighten bolts, characterized in that, It includes a torque wrench and a wrench sleeve, wherein the wrench sleeve is fitted onto the tail end of the torque wrench and the wrench sleeve is fixedly connected to the torque wrench; A chain is provided on one side of the wrench sleeve, and a force-applying hand strap is provided on the other end of the chain.

2. The safety device for facilitating the application of force by a torque wrench to tighten bolts according to claim 1, characterized in that, The force-applying hand strap is circular.

3. The safety device for facilitating the application of force by a torque wrench to tighten bolts according to claim 1, characterized in that, A semi-circular ring is provided on one side of the wrench sleeve, and the iron chain is connected to the semi-circular ring.

4. The safety device for facilitating the application of force by a torque wrench to tighten bolts according to claim 3, characterized in that, The semicircular ring is welded to the wrench sleeve, and the end ring of the iron chain is fitted onto the semicircular ring.

5. The safety device for facilitating the application of force by a torque wrench to tighten bolts according to claim 1, characterized in that, A fastening hole is provided on one side of the wrench sleeve, and a fastening bolt is installed in the fastening hole.

6. The safety device for facilitating the application of force by a torque wrench to tighten bolts according to claim 5, characterized in that, The number of fastening holes is 2, and the two fastening holes are located on the same side of the wrench sleeve and are spaced apart along the axial direction of the wrench sleeve.

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