Measuring tool

Abstract

The utility model discloses a measuring tool. The measuring tool comprises a supporting module, a longitudinal measuring module and a transverse measuring module. The supporting module comprises a base, a base and a folding part, the base is in sliding connection with the base, the folding part is connected with the base and the base, and the base slides relative to the base so that the folding part can be unfolded or folded. And the longitudinal measurement module is connected with the base and is used for measuring the longitudinal size of the battery pack. And the transverse measurement module is connected with the base and is used for measuring the transverse size of the battery pack. Compared with the prior art, the position of the base is adjusted through unfolding and folding of the folding part, so that the positions of the transverse measurement module and the longitudinal measurement module are adjusted, interference between the transverse measurement module or the longitudinal measurement module and the battery pack is avoided, the device is suitable for battery packs with different lengths, and the measurement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measuring equipment, especially a kind of measuring tool. BACKGROUND

[0002] In modern various measuring equipment, the traditional measuring device is often complex in structure, bulky, difficult to meet the requirements of portability and stability.In addition, in some specific application occasions, for example, when measuring long material in limited space, the device needs to have flexible adjustment and operation ability, and the general rigid connection mode often cannot realize these functions.This limits the application range and operation convenience of the measuring device to some extent. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of measuring tool, can realize flexible measurement, the effect of increasing the range of measurement.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of measuring tool, including support module, longitudinal measurement module and transverse measurement module, support module includes base, pedestal and folding part, the pedestal and the base sliding connection, the folding part is connected with the pedestal and the base respectively, the pedestal is relative to the base sliding to make the folding part unfold or fold;Longitudinal measurement module and the pedestal are connected, and the longitudinal measurement module is used to measure the longitudinal size of battery pack;Transverse measurement module and the pedestal are connected, and the transverse measurement module is used to measure the transverse size of battery pack.

[0006] As one of the implementation ways, the base includes bottom plate and side plate, the bottom plate and the side plate are connected, the pedestal and the bottom plate are slidingly connected, one end of the folding part is connected with the pedestal, and the other end is connected with the side plate.

[0007] As one of the implementation ways, along longitudinal direction, the side plate extends to beyond the pedestal in the direction away from the bottom plate.

[0008] As one of the implementation ways, the longitudinal measurement module includes first fixed seat, first sliding seat and first top holding piece, the first fixed seat and the pedestal are connected, the first sliding seat is slidingly connected with the first fixed seat along longitudinal direction, the first top holding piece is connected with the first sliding seat, and the first top holding piece is used to abut battery pack along the longitudinal direction.

[0009] As one of the embodiments, the longitudinal measurement module comprises a first measuring member and a first scale, the first measuring member is connected with the first sliding base, and the first scale is connected with the first fixed base, and the first measuring member is used for reading the scale value of the first scale.

[0010] As one of the embodiments, the longitudinal measurement module comprises a rotating shaft, a rotating handle, a first bevel gear and a second bevel gear, the first fixed base is provided with a mounting space, a first end of the rotating shaft extends into the mounting space and is connected with the first bevel gear, and a second end of the rotating shaft is threadedly connected with the first sliding base; the rotating handle is rotationally connected with the first fixed base, the rotating handle partially extends into the mounting space and is connected with the second bevel gear, and the second bevel gear is engaged with the first bevel gear.

[0011] As one of the embodiments, the longitudinal measurement module comprises a locking block and a fixing member, the locking block is connected with the first fixed base, the locking block is provided with a through hole and a locking groove, the locking groove is communicated with the through hole, the rotating handle passes through the through hole and rotationally matches with the through hole, and the fixing member passes through the locking groove and is connected with the locking block and used for locking the through hole.

[0012] As one of the embodiments, the transverse measurement module comprises a second fixed base, a second sliding base and a second supporting member, the second fixed base is connected with the base, the second sliding base is slidably connected with the second fixed base in the transverse direction, and the second supporting member is connected with the second sliding base and used for supporting the battery pack in the transverse direction.

[0013] The transverse measurement module further comprises a second measuring member and a second scale, the second measuring member is connected with the second sliding base, and the second scale is connected with the base, and the second measuring member is used for reading the scale value of the second scale.

[0014] As one of the embodiments, the transverse measurement module comprises a blocking strip, the blocking strip is connected with the second fixed base, and in the transverse direction, the blocking strip extends away from the second fixed base to beyond the second fixed base.

[0015] As one of the embodiments, the measurement tooling comprises a driving member, the driving member is connected with the base, a driving end of the driving member is connected with the base, and the driving member is used for driving the base to slide.

[0016] The utility model discloses a beneficial effect lies in: the present application provides a kind of measuring tool, including support module, longitudinal measurement module and transverse measurement module.Support module includes base, pedestal and folding part, pedestal and base sliding connection, folding part is connected with pedestal and base respectively, pedestal is relative to the sliding of base to make folding part unfold or fold.Longitudinal measurement module and pedestal are connected, and longitudinal measurement module is used to measure battery pack longitudinal size.Transverse measurement module and pedestal are connected, and transverse measurement module is used to measure battery pack transverse size.Compared with prior art, the present application is unfolded and folded by folding part, adjusts the position of pedestal, and then adjusts the position of transverse measurement module and longitudinal measurement module, avoids that transverse measurement module or longitudinal measurement module and battery pack interfere, adapts different length battery pack, and improves measurement efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of the measuring tool of the utility model is shown;

[0018] Figure 2 The section schematic view of the measuring tool of the utility model is shown;

[0019] Figure 3 Another structure schematic view of the measuring tool of the utility model is shown;

[0020] Figure 4 The structure schematic view of the longitudinal measurement module of the utility model is shown;

[0021] Figure 5 The section schematic view of the longitudinal measurement module of the utility model is shown;

[0022] Figure 6 The structure schematic view of the longitudinal measurement module of the utility model is shown; Figure 4 The enlarged view of A in figure;

[0023] Reference signs: 1, support module;11, base;12, pedestal;13, folding part;111, bottom plate;112, side plate;

[0024] 2, longitudinal measurement module;21, first fixed seat;22, first sliding base;23, first top holding piece;24, first measuring piece;25, first scale;26, rotating shaft;27, rotating handle;28, first bevel gear;29, second bevel gear;210, locking block;211, fixed part;2101, through hole;2102, locking groove;

[0025] 3, transverse measurement module;31, second fixed seat;32, second sliding base;33, second top holding piece;34, second measuring piece;35, second scale;36, baffle;

[0026] 4, driving part. DETAILED DESCRIPTION

[0027] In the present application, the terms "provided", "provided with", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0030] Referring to Figure 1 The embodiment of the present application provides a measuring tool, which can be applied to the technical field of battery manufacturing, and can measure whether the size of the battery pack is qualified through the measuring tool. The measuring tool is convenient and efficient in measurement, and effectively improves the production efficiency of the battery production line.

[0031] Referring to Figure 1 The measuring tool comprises a supporting module 1, a longitudinal measurement module 2 and a transverse measurement module 3. The supporting module 1 comprises a base 11, a base 12 and a folding part 13. The base 12 and the base 11 are slidingly connected, and the folding part 13 is connected with the base 12 and the base 11 respectively. The base 12 slides relative to the base 11 to make the folding part 13 unfold or fold. The longitudinal measurement module 2 is connected with the base 12, and is used for measuring the longitudinal size of the battery pack. The transverse measurement module 3 is connected with the base 12, and is used for measuring the transverse size of the battery pack.

[0032] In order to clearly describe Figure 1 In the present application, the terms "provided", "provided with", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In practical application, the folding part 13 mainly comprises a plurality of connection plates connected in sequence, the first and last connection plates are fixedly connected with the base 12 and the base plate 11 respectively, and the remaining connection plates are connected through preset folding lines or hinge structures. When the base 12 slides towards the folding part 13 relative to the base plate 11, the plurality of connection plates are folded in sequence, so that the folding part 13 is in a folded state. When the base 12 slides away from the folding part 13 relative to the base plate 11, the plurality of connection plates are unfolded in sequence, so that the folding part 13 is in an unfolded state. In specific application, the opposite sides of the base 12 are usually connected with the folding parts 13. If a battery pack with a short length is measured, for example, the length of the battery pack is less than the length of the base 12, the base 12 can be slid to the middle of the base plate 11, so that the battery pack can be directly placed on the base 12, and then the longitudinal dimension of the battery pack is measured by the longitudinal measuring module 2 and the transverse dimension of the battery pack is measured by the transverse measuring module 3, and the measurement is completed.

[0034] If a battery pack with a length longer than the base 12 is measured, the base 12 is moved towards the folding part 13 on one side, so that the base 12 can be close to the side edge of the base plate 11. In this way, the transverse measuring module 3 and the longitudinal measuring module 2 are moved to the side edge of the base plate 11 along with the base 12, so that space is left for placing the battery pack. At this time, the other folding part 13 is partially unfolded to form an extension platform, the battery pack is placed on the base 12 and the extension platform, and then the longitudinal dimension of the battery pack is measured by the longitudinal measuring module 2 and the transverse dimension of the battery pack is measured by the transverse measuring module 3, and the measurement is completed. By unfolding and folding the folding part 13, the position of the base 12 is adjusted, and then the positions of the transverse measuring module 3 and the longitudinal measuring module 2 are adjusted, so that the transverse measuring module 3 or the longitudinal measuring module 2 does not interfere with the battery pack, different lengths of battery packs are adapted, and the measurement efficiency is improved.

[0035] It should be noted that the hinge structure refers to a connection structure that can enable two components to rotate relative to a fixed point.

[0036] Referring to Figure 2 , the base plate 11 comprises a bottom plate 111 and a side plate 112, the bottom plate 111 and the side plate 112 are connected, the base 12 and the bottom plate 111 are slidingly connected, one end of the folding part 13 and the base 12 are connected, and the other end of the folding part 13 and the side plate 112 are connected.

[0037] In practical application, the bottom plate 111 is connected with the side plate 112 on the opposite sides along the length direction of the bottom plate 111, so that the folding parts 13 on both sides of the base 12 are connected with the side plates 112, and the folding parts 13 on both sides of the base 12 can be unfolded or folded respectively during the sliding process of the base 12, so that the base 12 can slide in any direction, and the unfolded or folded state of the folding part 13 can stably support the battery pack, and the operation flexibility of the device is improved.

[0038] Specifically, the bottom plate 111 can be a flat rectangular plate, and the side plate 112 is vertically connected to the two side edges of the bottom plate 111, forming an L-shaped structure. The base 12 can be a flat plate with a size similar to that of the bottom plate 111, and is slidably connected to the bottom plate 111 through a sliding rail or a sliding groove. When the base 12 slides, the two side folding parts 13 are unfolded or folded, ensuring that the battery pack is always placed stably.

[0039] Referring again to Figure 2 , in the longitudinal direction, the side plate 112 extends away from the bottom plate 111 to beyond the base 12.

[0040] In actual application, when measuring the transverse size of the battery pack, the stability of the battery pack on the base 12 during the measurement is crucial, and movement of the battery pack will cause measurement error, so the extended part of the side plate 112 provides additional support, with one end of the battery pack abutting against the extended part of the side plate 112 and the other end abutting against the transverse measurement module 3, ensuring that the battery pack remains in a horizontal state during the measurement and does not displace to cause measurement error. The design of the extended part of the side plate 112 not only enhances the stability of the device, but also improves the accuracy of the measurement.

[0041] Referring to Figure 3 , the longitudinal measurement module 2 includes a first fixed seat 21, a first sliding seat 22, and a first top holding piece 23. The first fixed seat 21 is connected to the base 12, the first sliding seat 22 is slidably connected to the first fixed seat 21 in the longitudinal direction, and the first top holding piece 23 is connected to the first sliding seat 22. The first top holding piece 23 is used to abut against the battery pack in the longitudinal direction.

[0042] In actual application, the first fixed seat 21 can be a bracket structure fixed on the base 12, having a guide rail or a sliding groove for slidably connecting with the first sliding seat 22. The first sliding seat 22 can be a sliding block structure capable of sliding on the first fixed seat 21 in the longitudinal direction, cooperating with the guide rail or the sliding groove of the first fixed seat 21. The first top holding piece 23 can be an abutting component connected to the first sliding seat 22, used to contact one end surface of the battery pack to avoid movement of the battery pack during the measurement, facilitating the measurement of the longitudinal size.

[0043] The operator can move the first sliding seat 22 to drive the first top holding piece 23 to move in the longitudinal direction until the first top holding piece 23 abuts against the end surface of the battery pack, and then read the corresponding measurement value to obtain the longitudinal size of the battery pack. This design is simple to operate, accurate in measurement, and improves the measurement efficiency.

[0044] Referring again to Figure 3The longitudinal measurement module 2 includes a first measurement member 24 and a first scale 25. The first measurement member 24 is connected to the first sliding seat 22, and the first scale 25 is connected to the first fixed seat 21. The first measurement member 24 is used to read the scale value of the first scale 25.

[0045] In practical applications, the first measurement member 24 can be an infrared sensor fixed on the first sliding seat 22 and used in cooperation with the first scale 25. The first scale 25 can be a ruler or scale with scales fixed on the first fixed seat 21 and extending in the longitudinal direction. When the first sliding seat 22 moves in the longitudinal direction, the first measurement member 24 also moves, and the longitudinal size of the battery pack can be obtained by reading the position of the first measurement member 24 on the first scale 25. This design makes the measurement result intuitive and visible, and the operator can directly read the scale value without the need for additional measurement tools, thereby improving the convenience and accuracy of measurement.

[0046] Referring again to Figure 3 The lateral measurement module 3 includes a second fixed seat 31, a second sliding seat 32, and a second top-holding member 33. The second fixed seat 31 is connected to the base 12, the second sliding seat 32 is slidingly connected to the second fixed seat 31 in the lateral direction, and the second top-holding member 33 is connected to the second sliding seat 32. The second top-holding member 33 is used to top-hold the battery pack in the lateral direction.

[0047] The lateral measurement module 3 further includes a second measurement member 34 and a second scale 35. The second measurement member 34 is connected to the second sliding seat 32, and the second scale 35 is connected to the base 11. The second measurement member 34 is used to read the scale value of the second scale 35.

[0048] In practical applications, the second fixed seat 31 can be a bracket structure fixed on the base 12 and having a guide rail or sliding groove for sliding connection with the second sliding seat 32. The second sliding seat 32 can be a slider structure capable of sliding on the second fixed seat 31 in the lateral direction and cooperating with the guide rail or sliding groove of the second fixed seat 31. The second top-holding member 33 can be an abutting component connected to the second sliding seat 32 and used to contact the side surface of the battery pack for lateral size measurement. The second measurement member 34 can be an infrared sensor fixed on the second sliding seat 32. When the second sliding seat 32 slides to abut against the first top-holding member 23, the second measurement member 34 is used in cooperation with the second scale 35, the second measurement member 34 reads the scale of the second scale 35 at this position, and the lateral size measurement of the battery pack is completed.

[0049] And as Figure 3As shown, the transverse measurement module 3 and the longitudinal measurement module 2 can be staggered along the length direction of the base 12, that is, the transverse measurement module 3 is not arranged opposite to the longitudinal measurement module 2, which is conducive to placing a longer battery pack on the base 12, avoiding interference of one of the transverse measurement module 3 or the longitudinal measurement module 2 with the battery pack. If the transverse measurement module 3 and the longitudinal measurement module 2 are arranged opposite to each other, one of them needs to be disassembled to accommodate the battery pack when placing the battery pack, which is very cumbersome and wastes operation time.

[0050] It should be noted that the relative arrangement refers to that the connecting line of the transverse measurement module 3 and the longitudinal measurement module 2 is parallel or approximately parallel to the length direction of the base 12.

[0051] Referring again to Figure 3 , the transverse measurement module 3 includes a blocking strip 36, the blocking strip 36 is connected with the second fixed seat 31, and the blocking strip 36 extends to beyond the second fixed seat 31 in the transverse direction away from the second fixed seat 31.

[0052] In actual application, the blocking strip 36 can be a strip-shaped structure connected with the second fixed seat 31 and extending in the transverse direction, and the length of the blocking strip 36 exceeds the width of the second fixed seat 31. The blocking strip 36 can be used to limit the position of the battery pack to prevent the battery pack from moving during the measurement, and to enable the battery pack to be placed parallel in the transverse direction, avoiding the battery pack to be inclined to cause inaccurate transverse dimension measurement.

[0053] Referring again to Figure 3 , the measurement tool includes a driving member 4, the driving member 4 is connected with the base 11, and the driving end of the driving member 4 is connected with the base 12, and the driving member 4 is used to drive the base 12 to slide.

[0054] In actual application, the driving member 4 can be a driving device such as a hydraulic cylinder, a pneumatic cylinder or an electric push rod, one end of which is connected with the base 11, and the driving end is connected with the base 12. By controlling the extension and retraction of the driving member 4, the base 12 can be driven to slide relative to the base 11, so as to realize the unfolding or folding of the folding part 13. The operator can easily realize the unfolding or folding of the measurement tool by controlling the driving member 4, without manual operation, improving the convenience and efficiency of use. At the same time, the use of the driving member 4 also makes the unfolding and folding process more stable and controllable, avoiding damage caused by improper operation.

[0055] Referring to Figure 4 and Figure 5, the longitudinal measurement module 2 includes a rotating shaft 26, a rotating handle 27, a first bevel gear 28 and a second bevel gear 29, the first fixed seat 21 is provided with a mounting space, the first end of the rotating shaft 26 extends into the mounting space and is connected with the first bevel gear 28, and the second end of the rotating shaft 26 is threadedly connected with the first sliding seat 22; the rotating handle 27 is rotationally connected with the first fixed seat 21, part of the rotating handle 27 extends into the mounting space and is connected with the second bevel gear 29, and the second bevel gear 29 is engaged with the first bevel gear 28.

[0056] In actual application, the rotating shaft 26 can be a threaded shaft, the first end of which extends into the mounting space of the first fixed seat 21 and is connected with the first bevel gear 28, and the second end of which is threadedly connected with the first sliding seat 22. The rotating handle 27 can be a rod-shaped structure with a handle, which is rotationally connected with the first fixed seat 21, part of which extends into the mounting space and is connected with the second bevel gear 29. The first bevel gear 28 and the second bevel gear 29 are engaged to form a transmission mechanism.

[0057] The operator can drive the second bevel gear 29 to rotate by rotating the rotating handle 27, and the second bevel gear 29 drives the rotating shaft 26 to rotate through the engagement with the first bevel gear 28. Since the rotating shaft 26 is threadedly connected with the first sliding seat 22, the rotation of the rotating shaft 26 drives the first sliding seat 22 to move in the longitudinal direction, so as to realize the accurate positioning of the first supporting piece 23.

[0058] Again referring to Figure 5 and Figure 6 , the longitudinal measurement module 2 further includes a locking block 210 and a fixing piece 211, the locking block 210 is connected with the first fixed seat 21, the locking block 210 is provided with a through hole 2101 and a locking groove 2102, the locking groove 2102 is communicated with the through hole 2101, the rotating handle 27 penetrates through the through hole 2101 and rotationally matches with the through hole 2101, and the fixing piece 211 penetrates through the locking groove 2102 and is connected with the locking block 210 and used for locking the through hole 2101.

[0059] In actual application, the locking block 210 can be a block-shaped structure connected with the first fixed seat 21 and provided with a through hole 2101 and a locking groove 2102 communicated with the through hole 2101. The rotating handle 27 penetrates through the through hole 2101 and rotationally matches with the through hole 2101. The fixing piece 211 can be a bolt or screw, which penetrates through the locking groove 2102, is connected with the locking block 210 and used for locking the through hole 2101, so as to prevent the rotating handle 27 from being accidentally rotated. After the first supporting piece 23 is slid to abut against the battery pack, the operator can tighten the fixing piece 211 to make the locking groove 2102 shrink, so as to lock the through hole 2101, prevent the rotating handle 27 from rotating and keep the measurement state unchanged. This design increases the stability and reliability of the measurement and avoids the measurement error caused by accidental touching.

[0060] It should be noted that in the transverse measurement module 3, the connection mode and locking mode of the second sliding seat 32 and the second fixed seat 31 can be similar to those of the longitudinal measurement module 2, and the present application will not be repeated here.

[0061] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0062] And, in addition to being used to represent the orientation or positional relationship, the above-mentioned partial terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0063] The above is only a specific embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A measuring fixture, characterized in that, include: A support module includes a base, a pedestal, and a folding portion. The pedestal and the pedestal are slidably connected. The folding portion is connected to both the pedestal and the pedestal. The pedestal slides relative to the pedestal to allow the folding portion to unfold or fold. A longitudinal measurement module is connected to the base, and the longitudinal measurement module is used to measure the longitudinal dimensions of the battery pack; A lateral measurement module is connected to the base, and the lateral measurement module is used to measure the lateral dimensions of the battery pack.

2. The measuring fixture according to claim 1, characterized in that, The base includes a bottom plate and a side plate, the bottom plate and the side plate are connected, the base and the bottom plate are slidably connected, one end of the folding part is connected to the base, and the other end is connected to the side plate.

3. The measuring fixture according to claim 2, characterized in that, Along the longitudinal direction, the side plate extends away from the base plate beyond the base.

4. The measuring fixture according to claim 1, characterized in that, The longitudinal measurement module includes a first fixed base, a first sliding base, and a first top holding member. The first fixed base is connected to the base, the first sliding base is slidably connected to the first fixed base in the longitudinal direction, and the first top holding member is connected to the first sliding base. The first top holding member is used to abut against the battery pack in the longitudinal direction.

5. The measuring fixture according to claim 4, characterized in that, The longitudinal measurement module includes a first measuring element and a first scale. The first measuring element is connected to the first slide, and the first scale is connected to the first fixed base. The first measuring element is used to read the scale value of the first scale.

6. The measuring fixture according to claim 4, characterized in that, The longitudinal measurement module includes a rotating shaft, a rotating handle, a first bevel gear, and a second bevel gear. The first fixed base has an installation space. The first end of the rotating shaft extends into the installation space and is connected to the first bevel gear. The second end of the rotating shaft is threadedly connected to the first slide. The rotating handle is rotatably connected to the first fixed base. The rotating handle extends into the installation space and is connected to the second bevel gear. The second bevel gear meshes with the first bevel gear.

7. The measuring fixture according to claim 6, characterized in that, The longitudinal measuring module includes a locking block and a fixing member. The locking block is connected to the first fixing seat. The locking block has a through hole and a locking groove. The locking groove and the through hole are connected. The rotating handle passes through the through hole and rotates with the through hole. The fixing member passes through the locking groove and is connected to the locking block for locking the through hole.

8. The measuring fixture according to claim 1, characterized in that, The lateral measurement module includes a second fixed base, a second sliding base, and a second supporting member. The second fixed base is connected to the base, the second sliding base is slidably connected to the second fixed base in the lateral direction, and the second supporting member is connected to the second sliding base. The second supporting member is used to support the battery pack in the lateral direction. The lateral measurement module further includes a second measuring element and a second scale. The second measuring element is connected to the second slide, and the second scale is connected to the base. The second measuring element is used to read the scale value of the second scale.

9. The measuring fixture according to claim 8, characterized in that, The lateral measurement module includes a stop bar connected to the second fixed base. Along the lateral direction, the stop bar extends away from the second fixed base beyond it.

10. The measuring fixture according to claim 1, characterized in that, The measuring fixture includes a driving component, which is connected to the base. The driving end of the driving component is connected to the base, and the driving component is used to drive the base to slide.

Images