Vertical force measuring device

Abstract

The application provides a vertical force measuring device, which aims to solve the problems of large floor space, inconvenient operation and insufficient structural stability of a force measuring platform in the prior art. The vertical force measuring device comprises a support frame, a test plate, a test head and a sensor. The device as a whole has a vertical structure, and has a top portion and a bottom portion opposite in the longitudinal direction. The support frame extends in the longitudinal direction of the device. The test plate extends in the transverse direction of the device and is connected to the support frame. The test head is arranged in the longitudinal direction and below the test plate. The sensor is used to detect the longitudinal force applied by the object to be measured to the test head. By adopting the vertical structure, the floor space of the device is significantly reduced, and the operation convenience is improved. At the same time, the force measuring device has a more reasonable structure, and the measurement accuracy and safety of the object to be measured are improved.

Description

Technical Field

[0001] This application relates to the field of mechanical performance testing equipment, and in particular to a vertical force measuring device. Background Technology

[0002] For example, fire and rescue equipment such as sparring tools, spreaders, and shears in demolition tool kits are indispensable key equipment in rescue operations. To ensure that such equipment can perform according to its design specifications in emergency situations and protect the safety of rescuers and trapped persons, relevant technicians need to regularly test the mechanical properties of the rescue equipment in the demolition tool kit, such as clamping force and spreading force.

[0003] In related technologies, force measuring platforms used to measure the mechanical properties of such equipment typically employ a horizontal structure. These horizontal force measuring platforms generally include a base and frame extending horizontally, with force sensors and contact components housed within the frame. During testing, the rescue equipment to be tested is horizontally mounted between the sensor and the contact component to measure its mechanical properties.

[0004] However, the inventors discovered in practice that the aforementioned related technologies have at least the following shortcomings:

[0005] Firstly, because the horizontal structure is laid out in a horizontal direction, the entire force measuring platform occupies a large area, which will waste site resources in testing sites with limited space, that is, the deployment flexibility of the force measuring device is poor.

[0006] Secondly, there are shortcomings in terms of ease of operation. Because rescue equipment is usually quite heavy, when installing and positioning it on a horizontal platform, the operator needs to support the weight of the equipment horizontally throughout the process. This is not only labor-intensive, but also makes it difficult to aim accurately. It often requires the cooperation of multiple people to complete the task, resulting in low efficiency.

[0007] Third, the structural stability needs to be improved. When subjected to the enormous forces generated by rescue equipment, the long-stroke frame of the horizontal platform may undergo flexural deformation, and the force sensors will bear a large off-center load. This will not only affect the accuracy of the measurement, but also pose certain safety risks under extreme testing. Utility Model Content

[0008] The purpose of this application is to provide a vertical force measuring device, which aims to solve the technical problems of large footprint, inconvenient operation and insufficient structural stability of force measuring platforms in related technologies.

[0009] To achieve the above objectives, this application provides a vertical force measuring device, comprising: a support frame, a test plate, a test head, and a sensor.

[0010] The force measuring device has a vertical structure with a top and bottom facing away from each other along the longitudinal direction. A support frame extends along the longitudinal direction of the force measuring device. A test plate extends along the transverse direction of the force measuring device and is connected to the support frame. A test head is spaced apart from the test plate along the longitudinal direction, with the test head positioned on the side of the test plate furthest from the top along the longitudinal direction. A sensor is used to detect the force exerted by the object under test on the test head along the longitudinal direction.

[0011] Compared with related technologies, the vertical force measuring device provided in this application has the following advantages: By designing the force measuring device as a vertical structure, this application fundamentally changes the horizontal layout of the traditional horizontal platform, reducing the footprint of the entire device and improving the flexibility of site deployment; at the same time, the vertical structure is more in line with the standing operation habits of operators, reducing the labor intensity and alignment difficulty when installing the object to be measured; in addition, the vertical structure, combined with the longitudinally extended support frame, makes the force transmission path shorter and more direct when the device is subjected to huge test forces, and the overall structural rigidity is stronger, effectively avoiding bending deformation, thereby improving the accuracy and safety of measurement. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a vertical force measuring device provided in an embodiment of this application;

[0014] Figure 2 yes Figure 1 Another structural schematic diagram of the force measuring device shown;

[0015] Figure 3 yes Figure 1 A schematic diagram of the force measuring device at another angle;

[0016] Figure 4 yes Figure 1 A schematic diagram of the support frame structure of the force measuring device shown;

[0017] Figure 5 yes Figure 1 A schematic diagram of the test plate structure of the force measuring device shown;

[0018] Figure 6 yes Figure 1 A schematic diagram of the test head structure of the force measuring device shown;

[0019] Figure 7 yes Figure 6 A schematic diagram of the test head from another angle.

[0020] Figure label:

[0021] 1. Force measuring device; 11. Top; 12. Bottom;

[0022] 2. Support frame; 21. First support frame; 22. Second support frame; 23. Mounting hole; 24. Mating hole; 25. Fixing pin;

[0023] 3. Test plate; 31. Flat surface; 32. Wedge-shaped part; 33. Positioning hole;

[0024] 4. Test head; 41. First surface; 42. Second surface;

[0025] 5. Extension column;

[0026] 6. Sensors;

[0027] 7. Base; 71. Mounting plate; 72. Mounting bracket;

[0028] 8. Electronic instruments;

[0029] 9. Slide rail. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0031] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] This application provides a vertical force measuring device 1, which is mainly used to test the mechanical properties of fire rescue equipment. Specifically, the vertical force measuring device 1 can be used to accurately measure and calibrate the clamping and spreading forces of jacks, spreaders, shears, splitters, and other hydraulic demolition tools in fire rescue tool sets, to ensure that their performance parameters meet relevant safety and usage standards.

[0033] To make the technical solution of this application clearer, the following will be combined with Figures 1 to 7 The embodiments of this application are described in detail.

[0034] Please refer to the following: Figures 1 to 3 This is a schematic diagram of the structure of a vertical force measuring device 1 provided in this application embodiment from different perspectives. In this application embodiment, for ease of description, the following definitions are used: Figure 2 The vertical direction indicated by the middle arrow is the longitudinal direction, and the direction perpendicular to the longitudinal direction is the transverse direction.

[0035] For details, please refer to Figure 1 The force measuring device 1 has a vertical structure. It includes a top 11 and a bottom 12 extending longitudinally away from the top 11. The top 11 and bottom 12 together define the longitudinal range of the force measuring device 1. The main structure of the force measuring device 1 is a support frame 2, which extends longitudinally and provides mounting reference and structural support for other functional components of the force measuring device 1. To ensure sufficient structural rigidity to withstand the enormous test forces, the support frame 2 can be welded from structural steel or integrally formed. A base 7 is connected to the bottom of the support frame 2. The base 7 has a large bottom area, used to stably place the entire force measuring device 1 on the ground or workbench, ensuring the safety and stability of the testing process.

[0036] Please see Figure 2 and Figure 3 This is a schematic diagram of the structure of the vertical force measuring device 1 in the embodiment of this application, which specifically shows the distribution of the core force measuring components of the force measuring device 1 along the longitudinal direction.

[0037] Specifically, the base 7 includes a mounting base 72 and a mounting plate 71. The mounting base 72 serves as the foundation of the entire device, and the mounting plate 71 is disposed on the upper surface of the mounting base 72. The sensor 6 is fixedly mounted on the mounting plate 71. The sensor 6 is used to detect the longitudinal force exerted by the object under test on the test head 4 and converts the force signal into an electrical signal that can be recognized and processed by the electronic instrument 8. In this embodiment, the sensor 6 can be a high-precision pressure sensor or a tension-compression bidirectional sensor to ensure the accuracy and reliability of the measurement results.

[0038] On the side of sensor 6 facing the top 11, an extension column 5 and a test head 4 are arranged in sequence. The extension column 5 serves as a rigid force transmission component, with its two ends connected to sensor 6 and test head 4 respectively. On the one hand, it is used to accurately transmit the force on test head 4 to sensor 6, and on the other hand, its axial length also defines the reference working height of test head 4.

[0039] The test head 4 is the component that directly interacts with the object under test. Considering that this device needs to be compatible with two different test modes, clamping force and expansion force, the test head 4 in this embodiment is designed as a modular structure that can be detached and replaced. Specifically, when performing an expansion force test, a first type of test head suitable for withstanding external expansion force can be installed; while when performing a clamping force test, a second type of test head suitable for withstanding internal clamping force can be used. For example, the first type of test head may have a flat load-bearing upper surface, while the second type of test head may have a concave load-bearing cavity. This modular design allows a single device to flexibly meet various test requirements, significantly improving the versatility of the device. A test plate 3 and an electronic instrument 8 are also provided on the support frame 2. The test plate 3 extends in the lateral direction and is connected to the support frame 2. The test head 4 and the test plate 3 are spaced apart in the longitudinal direction, and the test head 4 is located on the side of the test plate 3 away from the top 11 (i.e., below the test plate 3). Together, they define a test space for placing the object under test. The electronic instrument 8 is electrically connected to the sensor 6 and has a display screen to display the force value detected by the sensor 6 in real time and visually, so that the operator can read and record it.

[0040] In this embodiment, the support frame 2 specifically includes a first support frame 21 and a second support frame 22 spaced apart in the transverse direction. The first support frame 21 and the second support frame 22 together constitute a gantry frame with high structural stability. The test head 4, extension column 5, and sensor 6, and other core force measuring components, are arranged transversely between the first support frame 21 and the second support frame 22. The test plate 3 is transversely inserted through and connected to the first support frame 21 and the second support frame 22.

[0041] Near the top 11 of the force measuring device 1, a slide rail 9 is also provided. This slide rail 9 is fixed laterally to the top of the support frame 2, providing an auxiliary suspension platform for the operator. Its main function is that when a relatively heavy object needs to be installed, the operator can first use a hoist to suspend the object on the slide rail 9, and then move it along the slide rail 9 to directly above the testing area, assisting in precise alignment and installation, thereby reducing the user's workload. Furthermore, during testing, the slide rail 9 can also serve as a convenient shelf for temporarily suspending tools or other auxiliary heavy objects, further enhancing the operational convenience of the force measuring device 1.

[0042] Please see Figure 4 and in conjunction with reference Figure 3 , Figure 4 This is a schematic diagram of the support frame 2 in the embodiment of this application.

[0043] Specifically, such as Figure 4As shown, taking the first support frame 21 as an example, the support frame 2 is a long strip-shaped plate structure. Multiple mounting holes 23 arranged in an array are provided on the plate of the first support frame 21 along its longitudinal direction. It is understood that the specific shape (e.g., rectangular, circular, or oblong), size, and spacing between adjacent mounting holes 23 can be adaptively designed and adjusted by those skilled in the art according to actual adjustment accuracy and structural strength requirements, and are not limited to the specific form shown in this embodiment. In a preferred embodiment, the mounting hole 23 is designed as a rectangular through hole. This structure can form a more stable surface contact with the end of the test plate 3, thereby effectively preventing the test plate 3 from rotating or shaking when subjected to huge forces.

[0044] Please refer to the following: Figure 3 and Figure 4 The installation and height adjustment of the test plate 3 are achieved through the cooperation of these mounting holes 23. During operation, the operator can insert both ends of the test plate 3 into a pair of corresponding mounting holes 23 at the same height on the first support frame 21 and the second support frame 22 to complete the positioning. When it is necessary to change the test space, the operator only needs to pull the test plate 3 out of the mounting hole 23 of the current position and reinsert it into the mounting hole 23 of another pair of target positions. This coarse adjustment method based on multi-hole insertion has the advantages of simple structure and convenient operation. The operator can adjust the size of the test space according to the force measurement method of the object to be tested.

[0045] like Figure 4 As shown in the embodiment of this application, the support frame 2 is also provided with mating holes 24 extending in the longitudinal direction. It is understood that the number and layout of the mating holes 24 are flexible and variable. For example, one or more pairs of mating holes 24 can be provided, which can be arranged at intervals in the longitudinal direction to provide multiple alternative mounting bases.

[0046] In this embodiment, the mating hole 24 provides a mounting position for the sensor 6 and the mounting plate 71 to accommodate objects of special sizes. For example, when the opening of the object is small or its structure makes it difficult to test from the bottom, the entire testing area can be adjusted to a more ergonomic height by moving the entire force-measuring assembly to a higher position defined by the mating hole 24. This allows operators to perform all installation and testing operations in a comfortable standing posture, greatly improving the convenience and safety of operation and further expanding the applicability of this device.

[0047] Specifically, such as Figure 3As shown, by using the fixing pin 25 or other fasteners, the sensor 6 and the mounting plate 71 can be disassembled and reinstalled and fixed onto a pair of suitable mating holes 24 on the support frame 2. It is understood that those skilled in the art can set the mating holes 24 according to actual needs.

[0048] Please continue reading. Figure 5 This is a schematic diagram of the structure of the test plate 3 in the embodiment of this application. The test plate 3 is the component in the force measuring device 1 that directly contacts the object to be measured.

[0049] In this embodiment, the test plate 3 is generally a long strip-shaped structure with an asymmetrical working surface. The cross-section of the main body of the test plate 3 can be rectangular or racetrack-shaped to ensure that it can stably penetrate and be installed in the mounting holes 23 of the first support frame 21 and the second support frame 22. In order to achieve reliable fixation of the test plate 3 in the mounting holes 23, positioning holes 33 can be provided at both ends of the test plate 3. By inserting single steel ball pins, quick-release pins or other types of fasteners into the positioning holes 33, the test plate 3 can be prevented from accidentally moving axially during the testing of the object under test.

[0050] In this embodiment, to enable the force measuring device 1 to test the clamping force and expansion force of the object under test, the test plate 3 is configured with two working surfaces with different functions. One working surface is a flat surface 31, which, after the test plate 3 is installed, is mainly used to abut against the inner wall of the mounting hole 23 for positioning and to provide stable support. The other working surface opposite to the flat surface 31 is designed as a special wedge-shaped part 32. This wedge-shaped part 32 extends along the length direction of the test plate 3, forming a protruding sharp edge, which is specifically used to abut against the object under test during the expansion force test, so as to achieve concentrated application of force and effectively prevent the object under test from slipping.

[0051] Understandably, operators can adjust the installation direction of the test plate 3 according to actual testing needs, thereby determining the specific orientation of the wedge-shaped part 32. For example, when performing an expansion force test, the test plate 3 is installed with the wedge-shaped part 32 facing the bottom 12; while when performing a clamping force test, it can be installed with the wedge-shaped part 32 facing the top 11, thus achieving the effect of adapting the same component to different test modes.

[0052] Those skilled in the art will understand that, in order to effectively prevent the object under test from slipping during testing, the cross-sectional shape of the wedge portion 32 is not limited to the simple V-shape shown in this embodiment. Without departing from the concept of this application, the wedge portion 32 can also be configured in various other ways to provide stable contact and increase friction. For example, it can be serrated, wavy, or have knurled patterns, pyramidal bump arrays, etc., processed on its surface. All these structures that can achieve concentrated force application and prevent relative slippage should fall within the protection scope of this application.

[0053] Please refer to the following: Figure 6 and Figure 7 This is a schematic diagram of the test head 4 at different angles in the embodiments of this application. The test head 4 is another component of the force measuring device 1 that directly contacts the object to be tested. The operator can change the test head 4 according to the test mode of the force measuring device 1. For example, when testing the clamping force of the object to be tested, the clamping force head is used, and when testing the expansion force of the object to be tested, the expansion force head can be used.

[0054] In this embodiment, the test head 4 is designed as a hollow, multifunctional structure to accommodate different test modes. For example... Figure 6 As shown, the test head 4 has a first surface 41 facing the top 11. This first surface 41 is designed as a flat or slightly curved load-bearing surface with a large surface area, specifically designed to withstand the huge expansion force from the object under test (such as an expander) during expansion force testing, in order to prevent stress concentration or unstable positioning due to insufficient contact area.

[0055] like Figure 7 As shown, the test head 4 has a through cavity inside, and the inner top wall of the cavity forms a second surface 42 facing the bottom 12. This second surface 42 is designed as a load-bearing surface with a certain curvature, specifically for clamping force testing. During testing, the object to be tested (such as one arm of a clamping clamp) can be inserted into the cavity and clamp the second surface 42 upwards, thereby applying clamping force to the test head 4. This embodiment of the application designs the inner and outer surfaces of the test head 4 as different functional working surfaces, achieving dual functions with a single component, and has advantages such as compact structure and convenient switching of test modes.

[0056] It is understood that the test head 4 shown in this embodiment is only a general-purpose design. In other embodiments, the test head 4 can also be designed as a replaceable module for specific testing needs. For example, clamping force test heads with cavities of different sizes and expansion force test heads with load-bearing surfaces of different shapes can be provided to further enhance the applicability and specialization of the force measuring device 1.

[0057] This application provides a vertical force measuring device 1, which is mainly used to measure the clamping force or expansion force of a specific object to be measured. The following will be combined with... Figures 1 to 7 This section provides a detailed explanation of these two typical testing procedures.

[0058] When testing the expansion force of an object, the operator selects and installs a suitable test head 4 according to the size of the object (such as a fire spreader) and the testing requirements. Then, the test plate 3 is installed on the support frame 2, with its wedge-shaped portion 32 facing the bottom 12, i.e., the side facing the test head 4. The testing space is coarsely adjusted by inserting the test plate 3 into the mounting holes 23 at different heights.

[0059] If the object to be tested is heavy, it can be first suspended on the top slide rail 9 to assist in moving it to the test area. Then, place the two working ends of the object to be tested between the wedge-shaped part 32 of the test plate 3 and the first surface 41 of the test head 4, respectively. At this time, the test distance can be finely adjusted by rotating the extension column 5 or the test head 4 using the threaded pair to ensure that the object to be tested is precisely positioned. At this time, the object to be tested is neither loose nor has any pressure been applied beforehand.

[0060] Once ready, activate the object under test (e.g., drive the expander to open). At this time, the expansion force applied by the object under test will be transmitted to the sensor 6 through the test head 4 and the extension column 5. The sensor 6 transmits the detected force signal to the electronic instrument 8, which will then display the measured expansion force value in real time.

[0061] When testing the clamping force of the object under test, the operator similarly selects and installs a test head 4 suitable for clamping force testing (e.g., a test head with a concave cavity). Then, the test plate 3 is installed on the support frame 2, but at this time it must be installed with the wedge-shaped part 32 facing the top 11, that is, away from the direction of the test head 4.

[0062] Next, one working end of the object to be tested (such as the clamping arm of a fire spreader) is placed on the wedge-shaped portion 32 of the test plate 3, while the other working end extends into the internal cavity of the test head 4, pressing upward against the second surface 42 of the test head 4. Similarly, the operator can precisely set the test distance by coarse adjustment (moving the test plate 3) and fine adjustment (rotating the extension column 5, etc.).

[0063] Once ready, activate the test object (e.g., drive the clamping arm to close). The clamping force applied by the test object acts simultaneously on the wedge 32 and the second surface 42 of the test head 4. The force acting on the test head 4 is transmitted to the sensor 6 via the extension post 5, and the force value is ultimately displayed by the electronic instrument 8.

[0064] Furthermore, to further enhance the adaptability of the force measuring device 1 to different types of test objects, this embodiment also provides a flexible position adjustment scheme. Specifically, in addition to changing the height of the test space by raising and lowering the test plate 3, the operator can also adjust the installation reference point of the core force measuring components to accommodate test objects with special structures. For example, using the fixing pin 25, the sensor 6 and mounting plate 71, originally fixed to the bottom 12, can be reinstalled and fixed to the mating hole 24 at a higher position on the support frame 2. This design allows for more flexible adjustment of the entire test area, greatly facilitating the installation and operation of equipment with small openings or requiring testing at a specific height.

[0065] In summary, the vertical force measuring device 1 provided in this application has the following advantages compared with related technologies:

[0066] First, this device adopts a vertical structure, which significantly reduces the footprint of the equipment and improves the utilization rate of the site, making it particularly suitable for testing environments with limited space. Furthermore, by equipping it with a test plate 3 featuring dual working surfaces (wedge-shaped part 32 and flat surface 31) with adjustable orientation, and a replaceable multi-functional test head 4, it achieves accurate measurement of both expansion force and clamping force in two different modes on a single device. This multi-functional design offers strong versatility and reduces the cost of purchasing multiple single-function devices.

[0067] Furthermore, this device exhibits excellent adjustment flexibility and wide adaptability. The force measuring device 1 can be coarsely adjusted in a wide range of steps between multiple mounting holes 23 by inserting and removing the test plate 3, or it can be precisely finely adjusted by rotating the extension column 5. Moreover, the entire force measuring assembly can even be moved upwards for flexible adaptation to objects of various sizes and structures.

[0068] Finally, significant improvements have been made in terms of ease of operation and safety. The top slide rail 9 auxiliary suspension system greatly reduces the labor intensity when installing heavy test objects, making single-person operation possible. At the same time, the anti-slip design of the wedge-shaped part 32 and the gantry-style stable support frame 2 structure effectively ensure the stability and safety of the testing process, avoiding measurement errors and safety risks caused by slippage or structural deformation.

[0069] It should be noted that the terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. A vertical force measuring device, characterized in that, include: The top and bottom of the force measuring device are opposite to each other along the longitudinal direction. A support frame is provided extending along the longitudinal direction of the force measuring device; A test plate is provided extending in the lateral direction of the force measuring device and connected to the support frame; The test head is spaced apart from the test plate along the longitudinal direction; the test head is located on the side of the test plate away from the top along the longitudinal direction. A sensor is used to detect the force exerted by the object under test on the test head in the longitudinal direction.

2. The force measuring device according to claim 1, characterized in that, The test plate has a wedge-shaped portion on at least one working surface; the test head includes a first surface facing the top. In the first force measurement state, the wedge-shaped portion faces the bottom, and the object to be measured abuts against the wedge-shaped portion and the first surface of the test head.

3. The force measuring device according to claim 1, characterized in that, The test plate has a wedge-shaped portion on at least one working surface; the test head includes a second surface facing the bottom. In the second force measurement state, the wedge-shaped portion faces the top, and the object to be measured abuts against the wedge-shaped portion and the second surface of the test head.

4. The force measuring device according to any one of claims 2 to 3, characterized in that, The support frame includes a first support frame and a second support frame spaced apart in the transverse direction; the first support frame and the second support frame are provided with a plurality of mounting holes distributed in the longitudinal direction; The test plate is detachably inserted into the corresponding mounting holes of the first support frame and the second support frame; the test head is disposed between the first support frame and the second support frame in the lateral direction.

5. The force measuring device according to claim 1, characterized in that, It also includes extension columns; The extension post is located between the test head and the sensor, and is used to transmit the force borne by the test head to the sensor, and to control the distance between the test plate and the test head.

6. The force measuring device according to claim 4, characterized in that, The side of the test plate facing away from the wedge-shaped part is a flat surface, which is used to abut and position itself against the wall of the mounting hole.

7. The force measuring device according to claim 1, characterized in that, It also includes a slide rail, which is located on the top of the force measuring device and is used to suspend the object to be measured to assist in the installation operation of the object to be measured.

8. The force measuring device according to claim 1, characterized in that, It also includes an electronic instrument, which is electrically connected to the sensor and is used to display the force exerted by the object under test on the test head in the longitudinal direction.

9. The force measuring device according to claim 1, characterized in that, It also includes a base, which is disposed at the bottom of the force measuring device. The support frame and the sensor abut against the base and are disposed on the side of the base facing the top.

10. The force measuring device according to claim 9, characterized in that, The base includes a mounting plate and a mounting seat, wherein the mounting plate is disposed on the side of the mounting seat facing the top.

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