Labor-saving wrench for fastening grouting sleeve

Abstract

The utility model relates to the field of mechanical tools, and particularly discloses a labor-saving wrench for fastening a grouting sleeve, which comprises a wrench head, a wrench handle and a wrench handle, the handle is connected with the wrench head and used for operating the wrench; a protruding column is further arranged at the end, away from the handle, of the wrench head. By means of the labor-saving wrench, a worker can screw the grouting sleeve with less force, and the efficiency of the installation process is improved; by using the labor-saving wrench, a worker can be prevented from directly touching a thread of the grouting sleeve in the fastening process, the grouting sleeve cannot be polluted by oil stains on gloves of the worker, and meanwhile, the labor-saving wrench can be used for ensuring that the grouting sleeve is completely mounted in place and cannot roll laterally; due to the design of anti-skid textures on the handle, the holding stability of an operator is improved, and installation errors and possible safety accidents caused by hand slipping are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical tools, and particularly relates to a labor-saving wrench for fastening a grouting sleeve. Background Art

[0002] During the production process of segment linings, the installation of auxiliary materials and accessories mainly relies on manual labor. As the main load-bearing component during the assembly process, the grouting sleeve often fails to meet the design requirements for the actual tensile force it can withstand due to reasons such as improper installation by operators or surface contamination by demolding machines, grease, etc. During the assembly process, the grouting pipe may be pulled out, resulting in irreparable losses.

[0003] When existing workers manually install the grouting sleeve, the oil stains on the workers' gloves are likely to adhere to the grouting sleeve, resulting in the subsequent inability of the grouting sleeve to meet the design requirements for the actual tensile force it can withstand. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a labor-saving wrench for fastening a grouting sleeve to solve problems such as the oil stains on the workers' gloves being likely to adhere to the grouting sleeve during the manual installation of the grouting sleeve by existing workers, resulting in the subsequent inability of the grouting sleeve to meet the design requirements for the actual tensile force it can withstand.

[0005] A labor-saving wrench for fastening a grouting sleeve includes:

[0006] A wrench head for tightening the grouting sleeve;

[0007] A handle connected to the wrench head for operating the wrench;

[0008] A convex column is further provided at one end of the wrench head away from the handle.

[0009] Preferably, the wrench head is made of steel plate as the raw material, and the handle is made of steel pipe as the raw material.

[0010] Preferably, the wrench head and the handle are connected by welding, and the handle is welded and fixed on the outer arc surface of the wrench head and at a position away from the convex column.

[0011] Preferably, the wrench head can be sleeved on the outside of the grouting sleeve, and the convex column on the wrench head can be embedded in the longitudinally arranged reinforcing ribs on the outside of the grouting sleeve.

[0012] Preferably, the handle is designed with anti-slip texture to increase the holding stability of the worker when tightening the grouting sleeve and prevent installation errors caused by hand slipping.

[0013] Compared with the prior art, the utility model has the following beneficial effects: By using the labor-saving wrench, the staff can tighten the grouting sleeve with less force, improving the efficiency of the installation process;

[0014] By using this labor-saving wrench, it can avoid the staff directly touching the threads of the grouting sleeve during the tightening process. The grouting sleeve will not be contaminated by the oil stains on the staff's gloves. At the same time, using the labor-saving wrench can ensure that the grouting sleeve is completely installed in place without tilting;

[0015] The anti-slip texture design on the handle increases the stability when the operator holds it, reducing installation errors and possible safety accidents caused by slippery hands;

[0016] The wrench head is made of high-strength steel plate, ensuring durability and reliability during the tightening process; the handle is made of a lightweight and high-strength steel pipe, making the whole wrench lightweight and convenient for the operator to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a schematic diagram of the working state of the utility model.

[0019] In the figure: 1, wrench head; 2, handle; 3, convex column; 4, grouting sleeve body; 5, reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1 to 2 shown:

[0022] Embodiment 1: The present utility model provides a labor-saving wrench for tightening a grouting sleeve, including:

[0023] A wrench head 1 for tightening the grouting sleeve;

[0024] A handle 2 connected to the wrench head 1 for operating the wrench;

[0025] One end of the wrench head 1 far from the handle 2 is also provided with a convex column 3;

[0026] Among them, when installing the grouting sleeve body 4, hold the handle 2, half-enclose the wrench head 1 outside the grouting sleeve body 4, and at the same time make the convex column 3 snap onto the reinforcing rib 5. By applying force to the handle 2, the wrench head 1 can drive the grouting sleeve body 4 to rotate and screw into the fixed base through the convex column 3. When the grouting sleeve body 4 is about to be completely rotated into the fixed base, use a labor-saving wrench to fasten the root of the grouting sleeve and then pull the wrench to install the grouting sleeve in place completely. By using this labor-saving wrench, it can be avoided that the staff directly touches the thread of the grouting sleeve during the fastening process, the grouting sleeve will not be contaminated by the oil stain on the staff's gloves, and at the same time, using the labor-saving wrench can ensure that the grouting sleeve is installed in place completely and will not tilt.

[0027] Specifically, the wrench head 1 is made of steel plate as the raw material, and the handle 2 is made of steel pipe as the raw material. Among them, the wrench head 1 is the part where the wrench directly contacts the grouting sleeve and applies torque, so it needs to have sufficient strength and hardness to withstand the force generated during the tightening process. The steel plate is a material with high strength and good toughness, which can provide the required mechanical properties to ensure that the wrench head is not easily deformed or damaged under long-term use and repeated loading. The wrench head made of steel plate can better resist wear and pressure, ensuring the durability and reliability of the wrench. The handle 2 is the part where the operator holds and applies torque, and it needs to be light and have sufficient strength. The steel pipe has the characteristics of light weight and high strength, which is suitable as the material of the handle. The hollow structure of the steel pipe can keep the weight light while providing good strength and rigidity, enabling the operator to save more effort when tightening the grouting sleeve, and at the same time ensuring the stability and durability of the handle under long-term use.

[0028] Specifically, the wrench head 1 and the handle 2 are connected by welding. The handle 2 is welded and fixed on the outer arc surface of the wrench head 1 and at a position far from the convex column 3. Among them, using welding in the connection of the wrench head and the handle can ensure that a whole is formed between the two components, with high structural stability and load-bearing capacity. The welded connection can also effectively transmit torque, reducing the possible loosening or slipping during the tightening process. The fixed position of the handle has an important impact on the overall performance and operation comfort of the wrench. Welding the handle on the outer arc surface of the wrench head can make the position of the handle match the curve shape of the wrench head, providing better torque transmission efficiency and operation feel. At the same time, the position of the handle far from the convex column can avoid interference with the sleeve or other structures when tightening the grouting sleeve, ensuring the smoothness of the operation. In addition, this layout can also reduce the stress concentration on the welding point when the wrench is subjected to torque, thereby improving the durability and service life of the wrench.

[0029] As can be seen from the above, the wrench head 1 is the main working part of the wrench, which is used to directly tighten the grouting casing. The wrench head 1 is made of steel plate as the raw material, so it has sufficient strength and hardness to withstand the force generated during the tightening process. The convex column 3 is arranged at one end of the wrench head away from the handle, which is used to provide additional support. The design of the convex column enables the wrench to be stuck on the longitudinally arranged reinforcing ribs on the outside of the grouting casing, improving the stability and efficiency of tightening. The handle is the operating part of the wrench, and the operator applies torque through it. The handle is made of steel pipe as the raw material. The steel pipe is light and has high strength, which is suitable as a component for transmitting torque.

[0030] As Figure 2 shown:

[0031] Embodiment 2: This embodiment is basically the same as the previous one, except that the wrench head 1 can be sleeved on the outside of the grouting casing, and the convex column 3 on the wrench head 1 can be stuck on the longitudinally arranged reinforcing ribs on the outside of the grouting casing. Among them, the wrench head 1 can be sleeved on the outside of the grouting casing, so that the wrench head can closely fit the grouting casing, providing a better tightening effect, which helps to protect the threaded part of the grouting casing and avoid being damaged during the tightening process, ensuring the accuracy and reliability of the tightening operation. The convex column arranged on the wrench head can be stuck with the reinforcing ribs on the outside of the grouting casing. This structure provides a stable support point, ensuring that the wrench will not slide or fall off during the tightening process, improving the stability and efficiency of the tightening operation, and also ensuring the installation quality of the grouting casing.

[0032] Specifically, the handle 2 is designed with anti-slip texture to increase the holding stability of the operator when tightening the grouting casing and prevent installation errors caused by hand slipping. Among them, designing anti-slip texture on the handle can increase the holding stability of the operator when tightening the grouting casing, reduce installation errors caused by hand slipping, improve the safety and efficiency of operation. The anti-slip texture enables the operator to firmly hold the handle even when there is sweat or oil on the hand, and effectively apply force for the tightening operation.

[0033] As can be seen from the above, the wrench head 1 can be sleeved on the outside of the grouting casing, so that the wrench head 1 can closely fit the grouting casing, providing a better tightening effect, and also helping to protect the threaded part of the grouting casing and avoid being damaged during the tightening process. The convex column on the wrench head 1 can be stuck on the longitudinally arranged reinforcing ribs on the outside of the grouting casing. While providing a support point, it increases the connection stability between the wrench and the grouting casing, ensuring that the wrench will not slide or fall off during the tightening process, improving the accuracy and reliability of tightening. Designing anti-slip texture on the handle strengthens the holding stability of the operator when tightening the grouting casing. The anti-slip texture can reduce installation errors caused by hand slipping and improve the safety and efficiency of operation.

[0034] Embodiment 3:

[0035] The specific operation steps are as follows:

[0036] Preparation stage: First, place the grouting sleeve body 4 at the predetermined position to ensure its alignment with the fixed base.

[0037] Install the wrench: Hold the handle 2 and semi-surround the wrench head 1 outside the grouting sleeve body 4 to ensure that the convex column 3 can be stuck on the reinforcing rib 5 longitudinally arranged outside the grouting sleeve.

[0038] Tightening operation: By applying force to the handle 2, the wrench head 1 drives the grouting sleeve body 4 to rotate and screw into the fixed base through the convex column 3.

[0039] Final fixation: When the grouting sleeve body 4 is about to be completely rotated into the fixed base, use a labor-saving wrench to fasten the root of the grouting sleeve and then pull the wrench to install the grouting sleeve in place completely.

[0040] All standard parts used in the present utility model can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0041] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more unless otherwise specifically defined.

[0042] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "examples", "specific examples" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0046] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A labor-saving wrench for fastening a grouting casing, characterized in that, Comprising: A wrench head (1) for tightening the grouting sleeve; A handle (2) connected to the wrench head (1) for operating the wrench; One end of the wrench head (1) far from the handle (2) is further provided with a convex column (3).

2. The labor-saving wrench for fastening the grouting casing according to claim 1, wherein, The wrench head (1) uses a steel plate as the raw material, and the handle (2) uses a steel pipe as the raw material.

3. The labor-saving wrench for fastening a grouting casing according to claim 2, wherein, The wrench head (1) and the handle (2) are connected by welding, and the handle (2) is welded and fixed at a position on the outer arc surface of the wrench head (1) and far from the convex column (3).

4. The labor-saving wrench for fastening a grouting casing according to claim 1, wherein, The wrench head (1) can be sleeved on the outer side of the grouting sleeve, and the convex column (3) on the wrench head (1) can be clamped on the longitudinally arranged reinforcing ribs outside the grouting sleeve.

5. The labor-saving wrench for fastening a grouting casing according to claim 1, wherein, The handle (2) is designed with anti-slip texture to increase the holding stability of the staff when tightening the grouting sleeve and prevent installation errors caused by hand slipping.

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