Torque testing wrench

Abstract

The utility model relates to test tool technical field, concretely relates to a torque test wrench. Torque test wrench includes: torque wrench, and the prying lever subassembly of setting in torque wrench one end, torque wrench includes handle, torque lever and connecting head connected in proper order, digital display module is provided with on torque lever to show the torque that torque lever bears, prying lever subassembly includes connecting sleeve and the extension arm connected with connecting sleeve, connecting sleeve with connecting head fixed connection, and the extension arm is used for prying to the thing that waits to pry. Adopt above -mentioned mode, can be more intuitive reliable when detecting aluminium row welding strength, can also avoid damaging the aluminium row of good welding.

Description

Technical Field

[0001] This utility model relates to the field of testing tools, and in particular to a torque testing wrench. Background Technology

[0002] To facilitate series and parallel connections between batteries, aluminum busbars are welded to the battery terminals. After welding, it is necessary to check whether the weld is firm. If any problems are found, they need to be repaired or reworked in time to ensure stability during use.

[0003] Existing methods for testing the strength of welds typically involve tapping or prying. However, these methods are difficult to control the force applied, affecting the reliability of the test and potentially damaging well-welded aluminum bars. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide a torque testing wrench that can be more intuitive and reliable in testing the welding strength of aluminum busbars, and can also avoid damaging well-welded aluminum busbars.

[0005] This utility model discloses a torque testing wrench, comprising: a torque wrench and a pry bar assembly disposed at one end of the torque wrench. The torque wrench includes a handle, a torque bar, and a connector connected in sequence. The torque bar is provided with a digital display module to display the torque borne by the torque bar. The pry bar assembly includes a connecting sleeve and an extension arm connected to the connecting sleeve. The connecting sleeve is fixedly connected to the connector, and the extension arm is used to pry up the object to be pried.

[0006] Optionally, the connecting sleeve includes a first half and a second half, the first half being provided with a first clearance groove and the second half being provided with a second clearance groove. When the first half and the second half are fastened together, they can wrap around the connecting head, and the first half and the second half are connected by fasteners.

[0007] Optionally, the first half is provided with a first clearance hole, and the second half is provided with a second clearance hole. The first clearance hole and the second clearance hole are used to avoid the twist joint on the connector head.

[0008] Optionally, the first half is further provided with a third clearance hole, which is used to avoid the adjustment knob on the connector.

[0009] Optionally, a connecting portion is provided on the first half or the second half, and one end of the extension arm is detachably connected to the connecting portion.

[0010] Optionally, the connecting part is provided with a receiving groove, one end of the extending arm is received in the receiving groove, and is connected to the connecting part by a connector.

[0011] Optionally, a wedge-shaped head is provided at the end of the extension arm away from the connecting portion.

[0012] Optionally, the inclined surface of the wedge head faces the width direction of the connector.

[0013] Optionally, the width of the connecting portion is smaller than the width of the first half.

[0014] Optionally, the first half is provided with a first clearance opening, and the second half is provided with a second clearance opening, the first clearance opening and the second clearance opening being used to avoid the torsion bar.

[0015] Compared with existing technologies, the torque testing wrench provided in this embodiment offers the following advantages: by combining the functions of a traditional torque wrench and a pry bar, it solves the problem of difficulty in controlling the force in existing testing methods. Furthermore, by connecting the torque wrench to the pry bar assembly, the connecting sleeve and the connecting head are fixedly connected during connection, serving as a transition and making the torque wrench and the extension arm a single unit. The main function of the extension arm is to pry open the object to be pried (such as aluminum bars welded to battery terminals), applying external force to test the strength of the weld. This transforms the traditional torque wrench's use from tightening screws by connecting to a sleeve to a prying method. Combined with the torque wrench's own digital display module, users can precisely control the applied torque, making the testing process more standardized and scientific. This approach improves the reliability of the test, avoids damage to well-welded aluminum bars due to improper force, ensures the accuracy of the test results, reduces the risk of damage to the aluminum bars, and improves testing efficiency and quality. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the torque testing wrench provided in this embodiment of the utility model;

[0018] Figure 2 This is an exploded view of the torque testing wrench provided in this embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the torque wrench provided in this embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first half of the embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second half provided in an embodiment of the present invention.

[0022] The labels for the attached figures are as follows:

[0023] 100. Torque test wrench; 110. Torque wrench; 112. Handle; 114. Torque bar; 1142. Digital display module; 116. Connector; 1162. Torque joint; 1164. Adjustment knob; 120. Pry bar assembly; 122. Connecting sleeve; 1222. First half; 1222a. First clearance groove; 1222b. First clearance hole; 1222c. Third clearance hole; 1222d. First clearance opening; 1224. Second half; 1224a. Second clearance groove; 1224b. Second clearance hole; 1224c. Second clearance opening; 1226. Connecting part; 1226a. Receiving groove; 124. Extension arm; 1242. Wedge head; 1242a. Inclined surface. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a torque testing wrench 100, including: a torque wrench 110, and a pry bar assembly 120 disposed at one end of the torque wrench 110. The torque wrench 110 includes a handle 112, a torque bar 114, and a connector 116 connected in sequence. The torque bar 114 is provided with a digital display module 1142 to display the torque borne by the torque bar 114. The pry bar assembly 120 includes a connecting sleeve 122 and an extension arm 124 connected to the connecting sleeve 122. The connecting sleeve 122 is fixedly connected to the connector 116, and the extension arm 124 is used to pry up the object to be pried.

[0026] Specifically, the torque wrench 110 can be a commonly used torque wrench 110. Simply connect the connecting sleeve 122 to the connector 116 of the torque wrench 110 to achieve connection. At this time, the extension arm 124 connected to the connecting sleeve 122 can pry up aluminum bars or other objects. Furthermore, the connecting sleeve 122 can also serve as a support point for prying, improving ease of use. The torque bar 114 is the key force-bearing component of the entire torque wrench 110. It transmits the force applied by the handle 112 to the connector 116 and undergoes corresponding deformation when subjected to torque. This deformation is converted into an electrical signal by an internal torque sensor and processed and displayed by a digital display module 1142 mounted on the torque bar 114.

[0027] The torque testing wrench 100 provided in this application combines the traditional torque wrench 110 with a pry bar function, solving the problem of difficulty in controlling the force in existing testing methods. Furthermore, by connecting the torque wrench 110 to the pry bar assembly 120, the connecting sleeve 122 is fixedly connected to the connecting head 116 during connection, serving as a transition and making the torque wrench 110 and the extension arm 124 form a whole. The main function of the extension arm 124 is to pry open the object to be pried (such as aluminum bars welded to battery terminals), applying external force to test the firmness of the weld. This transforms the traditional torque wrench 110, which involves tightening screws by connecting to a sleeve, into a prying method. Combined with the digital display module 1142 of the torque wrench 110 itself, the user can precisely control the applied torque, making the testing process more standardized and scientific. Using the above method helps to improve the reliability of the test, avoid damage to the well-welded aluminum busbar due to improper force, ensure the accuracy of the test results, reduce the risk of damage to the aluminum busbar, and improve the efficiency and quality of the test.

[0028] like Figure 2 , Figure 4 and Figure 5 As shown, the connecting sleeve 122 includes a first half 1222 and a second half 1224. The first half 1222 is provided with a first clearance groove 1222a, and the second half 1224 is provided with a second clearance groove 1224a. When the first half 1222 and the second half 1224 are fastened together, they can wrap around the connector head 116, and the first half 1222 and the second half 1224 are connected by fasteners.

[0029] Specifically, when the first half 1222 and the second half 1224 are engaged, the first clearance groove 1222a and the second clearance groove 1224a can combine to form a space that encloses the connector 116, thereby achieving a stable connection to the connector 116. Furthermore, the first half 1222 and the second half 1224 are connected by fasteners (such as bolts, nuts, etc.) to ensure the tightness and stability of the connection between the connecting sleeve 122 and the connector 116, preventing loosening during use. This split design facilitates installation and disassembly. During installation, the connecting sleeve 122 can be quickly fitted onto the connector 116 and secured; disassembly requires no complicated operations, saving time and labor costs.

[0030] like Figure 3 , Figure 4 and Figure 5 As shown, a first clearance hole 1222b is provided on the first half 1222, and a second clearance hole 1224b is provided on the second half 1224. The first clearance hole 1222b and the second clearance hole 1224b are used to avoid the twist joint 1162 on the connector 116.

[0031] Specifically, the first clearance hole 1222b and the second clearance hole 1224b provide space for the torque connector 1162 on the connector 116, preventing obstruction or damage to the torque connector 1162 during the installation of the connecting sleeve 122. When a prying operation is required, it can be performed directly using the pry bar assembly 120. When using the torque wrench 110 to tighten the bolt, it will not affect the rotation of the socket on the torque connector 1162; the socket can be installed and the bolt tightened without disassembling the pry bar assembly 120.

[0032] like Figure 3 , Figure 4 and Figure 5 As shown, the first half 1222 is also provided with a third clearance hole 1222c, which is used to avoid the adjustment knob 1164 on the connector 116.

[0033] Specifically, the presence of the third clearance hole 1222c ensures that the adjusting knob 1164 can rotate and be adjusted freely without interference from the connecting sleeve 122, allowing the torque wrench 110 to flexibly adjust the rotation direction of torque measurement according to actual testing needs. This enables the torque wrench 110 to perform its adjustment function normally, enhancing the tool's flexibility and adaptability.

[0034] like Figure 2 and Figure 4 As shown, a connecting part 1226 is provided on the first half 1222 or the second half 1224, and one end of the extension arm 124 is detachably connected to the connecting part 1226.

[0035] Specifically, a connecting part 1226 is provided on the first half 1222 or the second half 1224, and one end of the extension arm 124 is detachably connected to the connecting part 1226. This detachable connection method can take various forms, such as bolt connection, snap-fit ​​connection, etc. In this way, the extension arm 124 and the connecting sleeve 122 can be assembled and disassembled according to actual use needs, which facilitates the replacement of extension arms 124 of different specifications or damage, and also facilitates the storage and carrying of tools.

[0036] like Figure 4 As shown, the connecting part 1226 is provided with a receiving groove 1226a, one end of the extension arm 124 is received in the receiving groove 1226a and connected to the connecting part 1226 by a connector.

[0037] Specifically, one end of the extension arm 124 is housed within the receiving groove 1226a and connected to the connecting part 1226 via a connector (such as a bolt), effectively improving the robustness and stability of the connection between the extension arm 124 and the connecting part 1226. During testing, the extension arm 124 needs to withstand significant external forces. The positioning and supporting function of the receiving groove 1226a ensures that the extension arm 124 maintains an accurate position under stress, preventing swaying from affecting the accuracy of the test results. Simultaneously, the fixing via the connector further enhances the reliability of the connection, preventing the extension arm 124 from falling off during use and ensuring user safety. Furthermore, this structural design facilitates installation and disassembly, making operation simple and convenient, and improving the efficiency of tool use.

[0038] like Figure 2 As shown, a wedge-shaped head 1242 is provided at the end of the extension arm 124 away from the connecting part 1226.

[0039] Specifically, a wedge-shaped head 1242 is provided at the end of the extension arm 124 away from the connecting part 1226. The shape of the wedge-shaped head 1242 makes it easier to insert into the gap when prying the object to be pried. The force is transmitted to the object to be pried through the wedge-shaped inclined surface, thereby realizing the detection of the firmness of the weld.

[0040] like Figure 1 and Figure 2 As shown, the inclined surface 1242a of the wedge head 1242 faces the width direction of the connector 116.

[0041] Specifically, when the torque test wrench 100 is used for testing, the inclined surface 1242a of the wedge head 1242 contacts the object to be pried, so that the direction of force transmission is towards the location of the inclined surface 1242a. In this way, it can be matched with the force direction of the torque sensor in the torque bar 114 on the torque wrench 110, so as to ensure stable detection of the prying torque.

[0042] like Figure 4 As shown, the width of the connecting part 1226 is smaller than the width of the first half 1222.

[0043] By adopting the above method, the connection between the connecting part 1226 and the extension arm 124 can be made more compact and reasonable, while avoiding interference between the connecting part 1226 and other components during use. Moreover, during use, one side of the first half 1222 in the width direction can be used as a fulcrum for prying, which helps to improve the convenience of use.

[0044] like Figure 4 and Figure 5As shown, a first clearance opening 1222d is provided on the first half 1222, and a second clearance opening 1224c is provided on the second half 1224. The first clearance opening 1222d and the second clearance opening 1224c are used to avoid the torsion bar 114.

[0045] Specifically, the first clearance opening 1222d and the second clearance opening 1224c serve to provide clearance space for the torsion bar 114. When the first half 1222 and the second half 1224 are engaged, the first clearance opening 1222d and the second clearance opening 1224c can combine to form a suitable space, ensuring that the torsion bar 114 is not squeezed or obstructed after the connecting sleeve 122 is installed, thus ensuring that the torsion bar 114 can work normally and achieve accurate torque transmission and display.

[0046] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A torque testing wrench, characterized in that, include: A torque wrench and a pry bar assembly disposed at one end of the torque wrench. The torque wrench includes a handle, a torque bar, and a connector connected in sequence. The torque bar is provided with a digital display module to display the torque borne by the torque bar. The pry bar assembly includes a connecting sleeve and an extension arm connected to the connecting sleeve. The connecting sleeve is fixedly connected to the connector, and the extension arm is used to pry up the object to be pried.

2. The torque testing wrench according to claim 1, characterized in that, The connecting sleeve includes a first half and a second half. The first half is provided with a first clearance groove, and the second half is provided with a second clearance groove. When the first half and the second half are fastened together, they can wrap around the connecting head, and the first half and the second half are connected by fasteners.

3. The torque testing wrench according to claim 2, characterized in that, The first half is provided with a first clearance hole, and the second half is provided with a second clearance hole. The first clearance hole and the second clearance hole are used to avoid the twist joint on the connector head.

4. The torque testing wrench according to claim 3, characterized in that, The first half is also provided with a third clearance hole, which is used to avoid the adjustment knob on the connector.

5. The torque testing wrench according to any one of claims 2-4, characterized in that, A connecting portion is provided on the first half or the second half, and one end of the extension arm is detachably connected to the connecting portion.

6. The torque testing wrench according to claim 5, characterized in that, The connecting part is provided with a receiving groove, one end of the extension arm is received in the receiving groove, and is connected to the connecting part through a connector.

7. The torque testing wrench according to claim 6, characterized in that, The end of the extension arm away from the connecting part is provided with a wedge-shaped head.

8. The torque testing wrench according to claim 7, characterized in that, The inclined surface of the wedge-shaped head faces the width direction of the connector.

9. The torque testing wrench according to claim 5, characterized in that, The width of the connecting part is smaller than the width of the first half.

10. The torque testing wrench according to any one of claims 2-4, characterized in that, The first half is provided with a first clearance opening, and the second half is provided with a second clearance opening. The first clearance opening and the second clearance opening are used to avoid the torsion bar.

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