Forcing rod

Abstract

The utility model provides a force applying rod which comprises a structure body, and the structure body comprises a rod body, and a limiting part and a locking part which are arranged on the rod body. Wherein the rod body is provided with an operation section and an installation section used for installing the wrench, the limiting part and the locking part are both arranged on the installation section, the limiting part is used for limiting the torsion angle of the wrench relative to the installation section, and the locking part is used for locking the wrench on the installation section. According to the stress application rod, the rod body is provided with the operation section and the installation section used for installing the wrench, so that the length of a force arm of the wrench can be increased, the small-size wrench can also apply large torque, the number of types and types of the wrench can be reduced, and the purchasing cost is reduced; besides, due to the arrangement of the limiting part, a torsion fulcrum and a reverse force bearing point can be provided for the wrench, the wrench can better output torque, the wrench can be firmly locked on the installation section through the locking part, and the wrench can be effectively prevented from shifting and falling off in the operation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to operation tool technical field, especially a force adding rod. BACKGROUND

[0002] At the moment of the vigorous development of hydrogen energy industry, the safety problem of hydrogen filling station is undoubtedly the most core point. The maintenance work of hydrogen filling station equipment is very important, especially the pipeline fixing parts such as storage tank that need to smear sealing grease. When carrying out large torque dismounting and installation operation, how to efficiently and safely complete the task and reduce the labor intensity of maintenance personnel becomes a problem to be solved.

[0003] At present, in order to meet the operation demand of larger torque, generally, the torque is increased by selecting larger size model wrench, but for some narrow space, due to the too large size of the wrench, the rotation angle is limited during operation, which greatly affects the work efficiency. Especially for hydrogen filling station operation, there is the risk of explosion, and the environment needs to be emptied and replaced, which will cause gas waste and increase operating cost, so the maintenance tool needs to purchase multiple types of explosion-proof tools, increasing the cost. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a force adding rod, which can exert larger torque with small size wrench, and reduce the type requirement of wrench.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A force adding rod, comprising a structure body, the structure body comprising a rod body, a limiting part and a locking part arranged on the rod body;

[0007] The rod body has a connecting operation section and a mounting section, and the operation section is used for the operation of the wrench, and the mounting section is used for mounting the wrench;

[0008] The limiting part and the locking part are arranged on the mounting section, and the limiting part is used for limiting the torsion angle of the wrench relative to the mounting section, and the locking part is used for locking the wrench on the mounting section.

[0009] Further, the limiting part comprises a first limiting part and a second limiting part arranged on both sides of the mounting section in the width direction respectively;

[0010] The first limiting part and the second limiting part are arranged in the length direction of the mounting section, and can abut the two sides of the wrench respectively.

[0011] Further, the locking part comprises a first bolt arranged on the first limiting part and / or the second limiting part;

[0012] The first bolt can press against the wrench and lock the wrench on the rod.

[0013] Further, the first limiting member and / or the second limiting member comprises a main body part extending upwards of the mounting section, and an extension part extending to one side of the main body part.

[0014] The extension part is above the mounting section, and the first bolt is screwed on the extension part.

[0015] Further, a guide part is arranged on the mounting section, the guide part is detachably connected with the wrench and can guide the wrench to slide to a preset position.

[0016] The locking part locks the wrench in the preset position on the mounting section.

[0017] Further, the guide part comprises a guide block slidingly arranged on the mounting section, and a connecting member arranged on the guide block.

[0018] The connecting member is detachably connected with the wrench.

[0019] Further, the guide block has a through hole for the wrench to pass through, the connecting member comprises a second bolt screwed on the top of the through hole, and the second bolt extends into the through hole.

[0020] Further, the through hole is a rectangular hole, and two side walls of the through hole can abut against the wrench to limit the torsion angle of the wrench.

[0021] Further, the mounting section comprises a first part, a second part and an intermediate part arranged between the first part and the second part in the thickness direction of the rod.

[0022] The limiting part is arranged on the first part, the guide part is arranged on the second part, and the second part is connected with the operation section.

[0023] Further, the structural body is made of beryllium bronze; and / or,

[0024] The mounting section and the operation section are integrally formed.

[0025] Compared with the prior art, the utility model has the following advantages:

[0026] The force adding rod, by the rod body having an operation section and a mounting section for mounting a wrench, can increase the length of the force arm of the wrench, so that the small size wrench can also exert a large torque, thereby reducing the type of wrench required and reducing the procurement cost; in addition, the setting of the limiting part can provide a torque fulcrum and a reverse force point for the wrench, which is beneficial to better output torque of the wrench, and the locking part can lock the wrench on the mounting section, so that even if a large reaction force or vibration is encountered during operation, the wrench can be effectively prevented from shifting and falling off.

[0027] In addition, the limiting part includes first and second limiting members respectively arranged on both sides of the mounting section in the width direction, which is simple in structure and easy to design and implement, and the first and second limiting members abut against both sides of the wrench, so that the wrench is more stable on the mounting section, and during operation, especially when a large force is applied, the wrench will not easily shake or shift. The locking part includes a first bolt arranged on the first and / or second limiting member, which is simple in structure and only needs to rotate the first bolt to lock and unlock the wrench, without the need for complex operation steps or special tools, and is convenient to operate.

[0028] Secondly, the first and / or second limiting member includes a main body portion extending upwardly of the mounting section and an extension portion extending to one side of the main body portion, which can improve the structural strength of the first and / or second limiting member, and at the same time, the extension portion can more accurately determine the position of the first bolt abutting against the wrench, so that the first bolt can accurately abut against the wrench, thereby achieving more firm and stable locking of the wrench and reducing the possibility of displacement and shaking of the wrench during operation.

[0029] Furthermore, the guide part is arranged, which is beneficial to quickly sliding the wrench to a preset position, compared with manually aligning and adjusting the position of the wrench, which can improve work efficiency and prevent the wrench from falling off during adjustment; and the guide part is detachably connected with the wrench, which can be applicable to wrenches of different sizes and shapes, can widen the compatible range of the force adding rod for different tools, and improves the universality thereof.

[0030] The through hole for the wrench to pass through is arranged on the guide block, which can provide a clear and relatively fixed placement space for the wrench, can effectively avoid the left and right and up and down deviation of the wrench, and greatly improves the positioning accuracy; the connecting member includes a second bolt, and the wrench is fixed and loosened by tightening or loosening the second bolt at the top, which is intuitive and simple in operation mode, and can also provide a large connecting force, which is beneficial to improving the connection firmness between the wrench and the guide block.

[0031] In addition, the through hole is a rectangular hole, and the two side walls of the through hole can abut against the wrench to limit the torsion angle of the wrench, so that when the wrench is twisted by external force during operation, the two side walls of the rectangular through hole abut against the wrench to provide additional support and constraint for the wrench, share part of the torsion force, and enhance the torsion resistance of the whole structure, so that the wrench is not easily deformed or accidentally separated from the guide block even if a large torque is applied, thereby facilitating the safety and continuity of operation.

[0032] The mounting section comprises a first part, a second part and an intermediate part arranged in the thickness direction of the rod body, and the guide part is arranged on the second part, so that when the wrench is placed on the guide part, the two ends of the wrench can be in flush position, thereby better applying the torque.

[0033] In addition, the structural body is made of beryllium bronze, so that the structural body has high hardness, elastic limit, fatigue limit and wear resistance, and also has good corrosion resistance, thermal conductivity and electrical conductivity, and does not produce sparks when impacted, so that it can be normally used in an explosion-proof area; the mounting section and the operating section are integrally formed, so that the force bar has good structural strength, and there is no connecting gap or weak link between the mounting section and the operating section, so that the force applied by the operator on the operating section can be transmitted to the mounting section and the wrench without any obstruction when the force bar is used for operation, thereby effectively reducing the force loss caused by the connecting part, improving the force efficiency of the force bar, and making the operation more labor-saving and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. In the drawings:

[0035] Figure 1 A structural schematic view of the force bar according to the embodiments of the present application;

[0036] Figure 2 A structural schematic view of the force bar according to the embodiments of the present application from another perspective;

[0037] Figure 3 A structural schematic view of the force bar according to the embodiments of the present application from still another perspective.

[0038] Legend of reference signs:

[0039] 1, rod body; 2, first limiting part; 3, second limiting part; 4, first bolt; 5, guide block; 6, second bolt;

[0040] 1a, mounting section; 1b, operating section; 101, first part; 102, second part; 103, intermediate part;

[0041] 501, via hole. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0043] In the description of the utility model, it should be noted that the terms 'upper', 'lower', 'inner', 'outer' and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms 'first','second' are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0044] In addition, in the description of the utility model, unless otherwise explicitly limited, the terms'mounting', 'connecting', 'connection', 'connecting piece' should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood in combination with the specific circumstances.

[0045] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0046] In the prior art, in order to meet the operation demand of larger torque, a larger size model of spanner is usually selected to increase the torque. However, this method has obvious disadvantages. In some narrow space, due to the oversize of the spanner, the rotation angle is limited during operation. Therefore, it is usually necessary to purchase tools of multiple models, and the procurement cost is large.

[0047] Therefore, the embodiment particularly provides a force adding rod, which comprises a structural body, the structural body comprises a rod body 1, and a limiting portion and a locking portion arranged on the rod body 1. The rod body 1 has an operating section 1b and a mounting section 1a connected with each other, and the operating section 1b is used for the operation of the spanner, and the mounting section 1a is used for mounting the spanner. The limiting portion and the locking portion are both arranged on the mounting section 1a, and the limiting portion is used for limiting the torsion angle of the spanner relative to the mounting section 1a, and the locking portion is used for locking the spanner on the mounting section 1a.

[0048] The force amplification lever of the embodiment can increase the length of the force arm of the wrench, so that a small-sized wrench can also exert a large torque, thereby reducing the types of wrenches required and lowering the procurement cost. In addition, the setting of the limiting part can provide a torque fulcrum and a reverse force point for the wrench, which is beneficial to better output torque of the wrench. The locking part can firmly lock the wrench on the mounting section 1a, so that the wrench can be effectively prevented from displacement and falling even if a large reaction force or vibration is encountered during operation.

[0049] Based on the above overall introduction, an exemplary structure of the force amplification lever of the embodiment is shown in Figures 1 to 3 which is in the form of a long strip-shaped rod, so as to effectively increase the force arm of the wrench and enable the wrench to exert a large torque. In addition, the force amplification lever of the embodiment is particularly suitable for open-end wrenches and partial open-end wrenches. As a preferred embodiment, the structural body of the embodiment is made of beryllium bronze. This design can make the structural body have high hardness, elastic limit, fatigue limit and wear resistance, and also have good corrosion resistance, thermal conductivity and electrical conductivity, so that no sparks are generated when impacted, thereby enabling the force amplification lever to be normally used in an explosion-proof area, and further improving the versatility of the force amplification lever. It can be understood that when the force amplification lever does not need to be used in an explosion-proof area, it is also feasible to be made of ordinary metal materials.

[0050] In addition, as shown in Figures 1 to 3 the mounting section 1a and the operating section 1b of the embodiment are integrally formed. As a preferred embodiment, the widths of the mounting section 1a and the operating section 1b are the same, and of course, it is also feasible to set different values for the widths of the two sections during specific implementation. In the embodiment, the mounting section 1a and the operating section 1b are integrally formed, which can make the mounting section 1a and the operating section 1b have no connection gap or weak link therebetween. When the force amplification lever is used for operation, the force applied by the operator to the operating section 1b can be transmitted to the mounting section 1a and the wrench without any obstruction, which is beneficial to reduce the loss of force caused by the connection part, thereby improving the force amplification efficiency of the force amplification lever and making the operation more labor-saving and efficient.

[0051] On the other hand, the connection part between the mounting section 1a and the operating section 1b will not be loose due to long-term use or vibration, and the relative position between the mounting section 1a and the operating section 1b is always fixed, so that the entire force amplification lever has good structural strength and structural stability. It should be noted that in addition to integrally forming the mounting section 1a and the operating section 1b, it is also feasible to separately manufacture the two sections and then connect them by welding, riveting or screwing.

[0052] In addition, as shown in Figures 1 to 3As shown in the diagram, in a preferred embodiment, the mounting section 1a includes a first portion 101, a second portion 102, and an intermediate portion 103 arranged at intervals in the thickness direction of the rod body 1. Furthermore, the mounting section 1a and the limiting portion are provided on the first portion 101, the guiding portion is provided on the second portion 102, and the second portion 102 is connected to the operating section 1b. Additionally, in a preferred embodiment, as... Figure 1 As shown in the diagram, in this embodiment, the first part 101 and the second part 102 are parallel to each other, while the middle part 103 is sloped between the first part 101 and the second part 102, that is, the middle part 103 forms an obtuse angle with both the first part 101 and the second part 102. This allows the middle part 103 to connect the first part 101 and the second part 102 while also ensuring good structural strength of the rod 1. Here, the thickness direction of the rod 1 refers to... Figure 2 The vertical direction is shown in the diagram. This design allows the two ends of the wrench to be aligned when placed on the guide, thus enabling better torque application.

[0053] Furthermore, as a preferred embodiment, the limiting part of this embodiment includes a first limiting member 2 and a second limiting member 3 respectively disposed on both sides of the mounting section 1a in the width direction. The first limiting member 2 and the second limiting member 3 are spaced apart along the length direction of the mounting section 1a and can respectively abut against both sides of the wrench. This design simplifies the structure of the limiting part and facilitates its design and implementation. Moreover, the way the first limiting member 2 and the second limiting member 3 abut against both sides of the wrench makes the wrench more stable on the mounting section 1a. During operation, especially when a large force is applied, the wrench will not easily shake or shift.

[0054] Furthermore, when this lever is applied to different types of wrenches, its torsion angle can be limited by the first limiting member 2 and the second limiting member 3, thereby improving the stability of the wrench during operation and the versatility of the lever. It should be noted that when this lever is primarily used for one type of wrench, the first limiting member 2 and the second limiting member 3 can directly abut against both sides of the wrench, thus restricting the wrench's rotation.

[0055] In addition, as a preferred embodiment, the locking part of the present embodiment comprises a first bolt 4 arranged on the first limiting member 2 and / or the second limiting member 3, and the first bolt 4 can press against the wrench and lock the wrench on the rod body 1. Here, the locking part comprises the first bolt 4, which can press against the wrench and tightly lock the wrench on the rod body 1 by applying sufficient pressure. Thus, during operation, even if a larger external force is encountered, the wrench can be kept in a fixed position and will not easily loosen or fall off. Moreover, the bolt is a common mechanical part, and its operation is easy to understand and master. The operator only needs to rotate the bolt to lock and unlock the wrench, without the need for complex operation steps or special tools.

[0056] In combination with the above, Figures 1 to 3 As a specific embodiment, the first limiting member 2 is arranged at the end of the mounting section 1a away from the operating section 1b, and the first bolt 4 is specifically arranged on the second limiting member 3. Moreover, the first limiting member 2 and the second limiting member 3 each comprise a main body portion extending upwards of the mounting section 1a, and an extension portion extending to one side of the main body portion. The extension portion is located above the mounting section 1a, and the first bolt 4 is screwed onto the extension portion of the second limiting member 3.

[0057] The first limiting member 2 and the second limiting member 3 of the present embodiment each comprise a main body portion and an extension portion, and are both in the shape of a "7", which can improve the structural strength of the first limiting member 2 and the second limiting member 3. At the same time, the arrangement of the extension portion can more accurately determine the position of the first bolt 4 pressing against the wrench, so that the first bolt 4 can accurately press against the wrench, thereby achieving more firm and stable locking of the wrench and reducing the possibility of displacement and shaking of the wrench during operation.

[0058] It should be noted that, in addition to arranging the first bolt 4 only on the second limiting member 3, the first bolt 4 can also be arranged only on the first limiting member 2, or arranged on both the first limiting member 2 and the second limiting member 3. In addition, in addition to making the first limiting member 2 and the second limiting member 3 each comprise a main body portion and an extension portion, the second limiting member 3 can also only comprise a main body portion and an extension portion, and the first limiting member 2 can be arranged vertically upwards. In addition, the locking part can comprise a locking rod slidingly arranged on the extension portion, and a spring arranged between the locking rod and the extension portion, and under the action of the spring, the locking rod presses against the wrench. However, compared with the first bolt 4, this structure may reduce the stability of the wrench.

[0059] In addition, the force applying rod of the embodiment further comprises a guiding part arranged on the mounting segment 1a, the guiding part is detachably connected with the wrench and can guide the wrench to slide to a preset position, and the locking part locks the wrench in the preset position on the mounting segment 1a. In the embodiment, the guiding part is arranged, which is beneficial to quickly slide the wrench to the preset position, and compared with manually slowly aligning and adjusting the position of the wrench, the working efficiency can be improved. In addition, the guiding part is detachably connected with the wrench, so that the force applying rod can be applicable to wrenches of different sizes and shapes, the compatible range of the force applying rod to different tools can be widened, and the versatility of the force applying rod is improved.

[0060] In combination with the force applying rod shown in Figures 1 to 3 As a further embodiment, the guiding part comprises a guiding block 5 slidably arranged on the mounting segment 1a, and a connecting piece arranged on the guiding block 5, and the connecting piece is detachably connected with the wrench. In this way, when the wrench needs to be moved to the preset position, the guiding block 5 can be easily slid along the mounting segment 1a to provide a smooth movement path for the wrench, so that the position of the wrench can be quickly switched, and the wrench can be prevented from falling off during the switching process. In addition, the connecting piece is detachably connected with the wrench, so that the guiding part can be compatible with various wrenches.

[0061] As shown in Figure 1 and Figure 3 As a specific embodiment, the guiding block 5 of the embodiment is in a rectangular shape and has a sliding hole sleeved on the structural body, and the guiding block 5 can slide along the structural body by abutting the side wall of the sliding hole with the structural body. In addition, the guiding block 5 has a through hole 501 for the wrench to pass through, the connecting piece comprises a second bolt 6 screwed on the top of the through hole 501, and the second bolt 6 extends into the through hole 501. In addition, as a preferred embodiment, the bottom wall of the through hole 501 is arranged in a flush manner with the first part 101, so that the wrench can be in a horizontal state, and the torque can be better output.

[0062] Based on different types of wrenches, for the wrench with a hanging hole at the end, the second bolt 6 can be inserted into the hanging hole of the wrench to be connected with the wrench. For the wrench without a hanging hole, the second bolt 6 can be abutted on the wrench to be connected with the wrench.

[0063] In the embodiment, by setting the via hole 501, the left and right, up and down deviation of the wrench can be effectively avoided, and the positioning accuracy is greatly improved. The connecting piece is a second bolt 6 screwed on the top of the via hole 501. Thus, when the wrench is placed in the via hole 501, the second bolt 6 can tightly press the wrench and firmly fix it on the guide block 5 by tightening the second bolt 6, thereby realizing reliable fixing of the wrench in the preset position. During operation, even if subjected to external force impact or vibration, the wrench is not easy to separate from the preset position, and the operation mode is intuitive and simple, without complex operation steps or special tools, which can improve work efficiency.

[0064] In addition, as shown in Figure 1 and Figure 3 As a preferred embodiment, the via hole 501 of the embodiment is a rectangular hole, and the two side walls of the via hole 501 can abut against the wrench to limit the torsion angle of the wrench. In this way, during operation, when the wrench is twisted by external force, the two side walls of the rectangular via hole 501 abut against the wrench, which can provide additional support and constraint to the wrench, share part of the torsion force, and enhance the ability of the entire structure to resist torsion. Even in the case of applying a large torque, the wrench is not easy to deform excessively or accidentally fall out of the guide block 5, which is beneficial to ensure the safety and continuity of operation.

[0065] Based on the above overall description, in use, the wrench is first placed between the first limiting piece 2 and the second limiting piece 3, and then the tail of the wrench is made to pass through the via hole 501 of the guide block 5 by an appropriate distance. Then, after locking the second bolt 6, the guide block 5 and the wrench are moved forward to adjust to a suitable force arm and reach a preset position, which can be determined according to specific requirements. After adjusting to a suitable force arm, the wrench is locked by the first bolt 4, and the operation section 1b of the force lever can be used.

[0066] The force lever of the embodiment, by adopting the above structure, not only can increase the length of the force arm of the wrench, so that a small size wrench can also apply a large torque, thereby reducing the type of wrench required and reducing the procurement cost. Moreover, it can be used in an explosion-proof area, which can meet the explosion-proof requirements of hydrogenation stations and prevent sparks from the site equipment, which can effectively improve the safety of on-site maintenance and use.

[0067] The above only describes the preferred embodiment of the utility model, and does not limit the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A force applying rod characterized in that: it comprises a structural body, the structural body comprising a rod body (1), and a limiting part and a locking part provided on the rod body (1); the rod body (1) has an operation section (1b) and a mounting section (1a) connected with each other, the operation section (1b) being used for the operation of a wrench, and the mounting section (1a) being used for mounting the wrench; the limiting part and the locking part are both provided on the mounting section (1a), the limiting part being used for limiting the torsion angle of the wrench relative to the mounting section (1a), and the locking part being used for locking the wrench on the mounting section (1a).

2. The force applying rod according to claim 1, characterized in that: the limiting part comprises a first limiting piece (2) and a second limiting piece (3) provided on both sides of the mounting section (1a) in the width direction, respectively; the first limiting piece (2) and the second limiting piece (3) are arranged in the length direction of the mounting section (1a) and can abut against both sides of the wrench, respectively.

3. The force applying rod according to claim 2, characterized in that: the locking part comprises a first bolt (4) provided on the first limiting piece (2) and / or the second limiting piece (3); the first bolt (4) can abut against the wrench and lock the wrench on the rod body (1).

4. The force applying rod according to claim 3, characterized in that: the first limiting piece (2) and / or the second limiting piece (3) comprise a main body part extending upwards of the mounting section (1a), and an extension part extending to one side of the main body part; the extension part is located above the mounting section (1a), and the first bolt (4) is screwed on the extension part.

5. The force applying rod according to claim 1, characterized in that: it further comprises a guiding part provided on the mounting section (1a), the guiding part being detachably connected with the wrench and being capable of guiding the wrench to slide to a preset position; the locking part locks the wrench in the preset position on the mounting section (1a).

6. The force applying rod according to claim 5, characterized in that: the guiding part comprises a guiding block (5) slidingly provided on the mounting section (1a), and a connecting piece provided on the guiding block (5); the connecting piece is detachably connected with the wrench.

7. The force applying rod according to claim 6, characterized in that: the guiding block (5) has a through hole (501) for the wrench to pass through, the connecting piece comprises a second bolt (6) screwed on the top of the through hole (501), and the second bolt (6) extends into the through hole (501).

8. The force applying rod according to claim 7, characterized in that: the through hole (501) is a rectangular hole, and the two side walls of the through hole (501) can abut against the wrench to limit the torsion angle of the wrench.

9. The force applying rod according to claim 5, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The mounting section (1a) comprises a first part (101), a second part (102) arranged at intervals in the thickness direction of the rod body (1), and an intermediate part (103) arranged between the two; The limiting part is arranged on the first part (101), the guide part is arranged on the second part (102), and the second part (102) is connected with the operation section (1b).

10. The force rod according to any one of claims 1 to 9, characterized in that: The structural body is made of beryllium bronze; and / or, The mounting section (1a) and the operation section (1b) are integrally formed.

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