Angle measuring device

Abstract

The utility model provides an angle measuring device. The angle measuring device comprises a base, a first connecting piece and a second connecting piece, the base is used for being connected with a first end of a joint assembly, and an angle graduated scale is arranged on the base; the first end of the first connecting piece is rotatably mounted on the base, an angle pointer is arranged at the first end of the first connecting piece, and the angle pointer and the angle graduated scale are oppositely arranged; the second connecting piece is movably installed at the second end of the first connecting piece in the length direction of the first connecting piece. According to the utility model, the first end of the first connecting piece is rotatably mounted on the base, and the joint angle of the first joint in the joint assembly can be measured by measuring the angle between the first connecting piece and the base; the second connecting piece is adjustable, the position of the first end of the first connecting piece is adjustable, the device is suitable for joint assemblies of different sizes, the structure is simple, reliability is high, and adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of angle measuring devices, in particular to an angle measuring device. Background Art

[0002] An angle measuring device is a device for measuring the joint angle of a joint assembly. For example, it is used to test the ankle joint angle of a simulation dummy. However, the existing angle measuring devices for joint angle measurement have fixed sizes, so that they can only measure the angles of joint assemblies of specific models or specific sizes, resulting in poor applicability and inability to meet the angle measurement requirements of joint assemblies of different models and different sizes. Summary of the Utility Model

[0003] The utility model provides an angle measuring device to solve the problem that the existing angle measuring device has poor applicability and cannot meet the angle measurement requirements of joint assemblies of different models and different sizes.

[0004] An angle measuring device includes a base, a first connecting member and a second connecting member;

[0005] The base is used to connect the first end of the joint assembly, and an angle scale is provided on the base;

[0006] The first end of the first connecting member is rotatably installed on the base, and an angle pointer is provided on the first end of the first connecting member, and the angle pointer is disposed opposite to the angle scale;

[0007] The second connecting member is movably installed along the length direction of the first connecting member at the second end of the first connecting member.

[0008] Preferably, an adjustment slideway is provided at the second end of the first connecting member along the length direction of the first connecting member; the second connecting member is movably installed in the adjustment slideway.

[0009] Preferably, the angle measuring device further includes a length scale, and the length scale is provided on the first connecting member or the second connecting member at the intersection position of the first connecting member and the second connecting member.

[0010] Preferably, a locking hole is provided on the first connecting member; the angle measuring device further includes a locking member, and the locking member is inserted into the locking hole for locking the first connecting member and the second connecting member.

[0011] Preferably, the angle measuring device further includes a first limiting member; the first limiting member is provided on the second connecting member for connecting with the second end of the joint assembly.

[0012] Preferably, a mounting surface is provided on the first limiting member, and the mounting surface is an arc-shaped surface connected to the second end of the joint assembly.

[0013] Preferably, a first positioning hole is provided on the base, and a second positioning hole is provided on the first end of the first connecting member;

[0014] The angle measuring device further includes a positioning member, which is inserted into the first positioning hole and the second positioning hole.

[0015] Preferably, the base comprises a pedal and a base plate;

[0016] The base plate is arranged on one side edge of the pedal, and the first end of the first connecting member is rotatably mounted on the base plate.

[0017] Preferably, the angle measuring device further includes a second limiting member; the second limiting member is provided on the pedal and is located on one side of the base plate.

[0018] Preferably, the first connecting member includes a transition portion and a connecting portion extending outwardly from one side of the transition portion along the radial direction of the transition portion;

[0019] The adapter is rotatably mounted on the base;

[0020] The second connecting member is movably mounted on the connecting portion.

[0021] The angle measuring device provided by the present invention includes a base, a first connector, and a second connector. During measurement, the base serves as a fixed reference. The first connector is parallel to the joint link of a joint assembly. The first end of the joint assembly (i.e., the first joint) is mounted on the base. The second end of the joint assembly (i.e., the second joint) is mounted on the second connector. The first end of the first connector is rotatably mounted on the base. When the joint assembly moves, the first end of the first connector can rotate about its connection with the base. By measuring the angle between the first connector and the base, the joint angle of the first joint in the joint assembly can be measured. An angle scale is provided on the base, and an angle pointer is provided on the first end of the first connector. The angle pointer and the angle scale are arranged opposite each other. The angle pointer indicates the degree of the angle pointer, thereby confirming the joint angle, thereby improving measurement accuracy. The second connector is movable along the length of the first connector, allowing the combined length of the second connector and the first connector to be adjusted to match the length of the joint link of the joint assembly. This facilitates the mounting of the first end of the first connector on the base, making the angle measuring device suitable for joint assemblies of different sizes. In this example, the second connecting member is adjustable, and the position of the first end of the first connecting member is adjustable, which is suitable for joint assemblies of different sizes, has a simple structure, high reliability, and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 It is an isometric view of an angle measuring device in one embodiment of the present invention.

[0024] Among them, 1. base; 11. pedal; 12. base plate; 2. first connecting part; 21. adapter; 22. connecting part; 3. second connecting part; 4. angle scale; 5. adjustment slide; 6. length scale; 7. locking part; 8. first limit part; 9. positioning part; 10. second limit part. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] The present invention provides an angle measurement device for measuring the angles of joint assemblies of different models and sizes. The joint assembly generally includes a first joint, a second joint, and a joint connecting rod, wherein the joint connecting rod connects the first joint and the second joint. For example, in a leg joint assembly, the first joint is an ankle joint, and the second joint is a knee joint. The angle measurement device is used to measure the angle of a first joint or a second joint in the joint assembly, such as the ankle joint angle in a subject's leg joint or the wrist joint angle in an elbow joint assembly.

[0029] Reference Figure 1 The angle measuring device includes a base 1, a first connecting member 2 and a second connecting member 3; an angle scale 4 is provided on the base 1 at the first end of the joint assembly; the first end of the first connecting member 2 is rotatably mounted on the base 1, and an angle pointer is provided on the first end of the first connecting member 2, and the angle pointer is arranged opposite to the angle scale 4; the second connecting member 3 is movably mounted on the second end of the first connecting member 2 along the length direction of the first connecting member 2.

[0030] As an example, the angle measuring device includes a base 1, a first connecting member 2, and a second connecting member 3. During measurement, the base 1 serves as a fixed reference, the first connecting member 2 is parallel to the joint link in the joint assembly, and the first end of the joint assembly (i.e., the first joint) is mounted on the base 1. The second end of the joint assembly (i.e., the second joint) is mounted on the second connecting member 3. The first end of the first connecting member 2 is rotatably mounted on the base 1. When the joint assembly moves, the first end of the first connecting member 2 can be rotated around the connection between it and the base 1. By measuring the angle between the first connecting member 2 and the base 1, the joint angle of the first joint in the joint assembly can be measured. An angle scale 4 is provided on the base 1, and an angle pointer is provided on the first end of the first connecting member 2. The angle pointer and the angle scale 4 are arranged relative to each other. In this way, the joint angle is confirmed by the degree pointed by the angle pointer, thereby improving the measurement accuracy. The second connecting member 3 is movable along the length of the first connecting member 2, allowing the combined length of the second connecting member 3 and the first connecting member 2 to be adjusted to match the length of the joint link of the joint assembly. This facilitates mounting the first end of the first connecting member 2 on the base 1, making the angle measuring device suitable for joint assemblies of varying sizes. In this example, the adjustable second connecting member 3 and the adjustable position of the first end of the first connecting member 2 allow for adaptability to joint assemblies of varying sizes, resulting in a simple structure, high reliability, and strong adaptability.

[0031] The angle measuring device in this example can measure the joint angles of any joint components of the subject, and can be used in many fields such as automobile design, seat design, orthopedics, rehabilitation, etc., with a wide range of applications; the material cost is low, and the subsequent maintenance cost is low; the measurement is completed using this device, and the result is immediate, the operation is convenient, and it can complete rapid on-site measurements.

[0032] For example, the joint assembly is a leg joint, and the first joint is an ankle joint. In the field of automotive ergonomics, the ankle joint angle can express the comfort of the driver's pedal operation posture and the comfort of the passenger's sitting posture. In design, the ankle joint angle of a simulation dummy is often used for design or the leg model of an HPM (H-point measurement device) is used for measurement. Both the simulation dummy and the HPM (H-point measurement device) are of international standard dummy sizes, with fixed sizes and virtuality, and cannot measure the ankle joint angle of an actual subject. In this example, the subject wears the base 1, with the heel against the rear end of the base 1. The measurer places one end of the second connecting member 3 on the subject's knee, and then the measurer visually observes and adjusts the position of the other end of the second connecting member 3 within the first connecting member 2 so that the total length of the second connecting member 3 and the first connecting member 2 matches the leg length of the subject, and the joint axis of the first end of the first connecting member 2 connected to the base 1 is aligned with the ankle joint of the subject. The position of the first end of the first connecting member 2 is finely adjusted and aligned with the hole position on the base 1 to complete the connection. Finally, the ankle joint angle is confirmed by reading the scale of the angle scale 4.

[0033] In one embodiment, referring to Figure 1 , an adjustment slideway 5 is provided at the second end of the first connecting member 2 along the length direction of the first connecting member 2; the second connecting member 3 is movably installed within the adjustment slideway 5.

[0034] As an example, an adjustment slideway 5 is provided at the second end of the first connecting member 2 along the length direction of the first connecting member 2; the second connecting member 3 is movably installed within the adjustment slideway 5. In this way, the total length of the second connecting member 3 and the first connecting member 2 can be adjusted according to the length of the joint assembly, so as to facilitate the adjustment of the installation position of the first end of the first connecting member 2 to align it with the joint axis of the first joint in the joint assembly, providing convenience for measuring the joint angle.

[0035] In one embodiment, referring to Figure 1 , the angle measuring device further includes a length scale 6, and the length scale 6 is provided on the first connecting member 2 or the second connecting member 3, at the intersection position of the first connecting member 2 and the second connecting member 3.

[0036] As an example, the angle measuring device further includes a length scale 6. During installation, the length scale 6 is disposed on the first connecting member 2 or the second connecting member 3, specifically at the intersection position of the first connecting member 2 and the second connecting member 3. By observing the reading of the length scale 6, the total length of the second connecting member 3 and the first connecting member 2 can be quickly confirmed. Among them, the length scale 6 can be disposed on the first connecting member 2 and intersect with the second connecting member 3. When the second connecting member 3 moves, the second connecting member 3 will intersect with different scales of the length scale 6, and the elongation of the second connecting member 3 can be read, thereby obtaining the total length of the first connecting member 2 and the second connecting member 3. The length scale 6 can also be disposed on the second connecting member 3 and intersect with the first connecting member 2. When the second connecting member 3 moves, different scales of the length scale 6 will intersect with the second connecting member 3, and the elongation of the second connecting member 3 can be read, thereby obtaining the total length of the first connecting member 2 and the second connecting member 3.

[0037] In one embodiment, referring to Figure 1 , a locking hole is provided on the first connecting member 2; the angle measuring device further includes a locking member 7, and the locking member 7 is inserted into the locking hole for locking the first connecting member 2 and the second connecting member 3.

[0038] As an example, a locking hole is provided on the first connecting member 2; the angle measuring device further includes a locking member 7. During installation, the locking member 7 is inserted into the locking hole, which can be used to lock the first connecting member 2 and the second connecting member 3, facilitating the adjustment of the total length of the second connecting member 3 and the first connecting member 2. Among them, there are two layout structures for locking the first connecting member 2 and the second connecting member 3; the first layout structure is that only the first connecting member 2 is provided with a locking hole, the locking hole is a threaded hole, and the locking member 7 is a bolt or a screw; the locking member 7 is threadedly installed in the threaded hole. By screwing the locking member 7, it moves along the axial direction of the threaded hole. When the locking member 7 moves towards the second connecting member 3 and abuts against the second connecting member 3 to lock, the first connecting member 2 and the second connecting member 3 can be locked. The second layout structure is that a locking hole is provided on the first connecting member 2 and a locking hole is also provided on the second connecting member 3. The locking member 7 is inserted into the two locking holes, and the first connecting member 2 and the second connecting member 3 can be locked.

[0039] In one embodiment, referring to Figure 1 , the angle measuring device further includes a first limiting member 8, and the first limiting member 8 is disposed on the second connecting member 3 for connecting with the second end of the joint assembly.

[0040] As an example, the angle measuring device also includes a first limit member 8. During installation, the first limit member 8 is set on the second connecting member 3. The first limit member 8 is used to connect with the second end of the joint assembly, that is, to connect with the second joint (such as the knee joint). It can play a positioning role, make the measurement stability better, improve the measurement accuracy, and be suitable for human-machine parameter measurement.

[0041] In one embodiment, referring to Figure 1 The first limiting member 8 is provided with a mounting surface, which is an arc-shaped surface that matches the shape of the second end of the joint assembly.

[0042] As an example, a mounting surface is provided on the first limit member 8, and the mounting surface is an arc-shaped surface that matches the shape of the second end of the joint assembly, and has better matching with the second end of the joint assembly of the subject, thereby improving the stability of the equipment installation and the comfort of the subject wearing it.

[0043] In one embodiment, referring to Figure 1 A first positioning hole is provided on the base 1, and a second positioning hole is provided on the first end of the first connecting member 2; the angle measuring device also includes a positioning member 9, which is inserted into the first positioning hole and the second positioning hole.

[0044] As an example, the angle measuring device further includes a positioning member 9. During installation, a first positioning hole is provided on the base 1, and a second positioning hole is provided on the first end of the first connecting member 2. The positioning member 9 is inserted into the first and second positioning holes to facilitate connection of the first end of the first connecting member 2 to the base 1. There are multiple first positioning holes, which are spaced apart to align the connection between the first end of the first connecting member 2 and the base 1 with the joint axis of the first joint of the subject's joint assembly, facilitating real-time measurement of the joint angle.

[0045] In one embodiment, referring to Figure 1 The base 1 includes a pedal 11 and a base plate 12 ; the base plate 12 is arranged on a side edge of the pedal 11 , and the first end of the first connecting member 2 is rotatably mounted on the base plate 12 .

[0046] As an example, the base 1 includes a pedal 11 and a base plate 12; the pedal 11 is a wearable sole or glove, which is convenient for installing the first end of the joint assembly of the subject, that is, the first joint (such as the ankle joint); the base plate 12 is arranged on one side edge of the pedal 11, and the first end of the first connecting member 2 can be rotatably mounted on the base plate 12. The first end of the first connecting member 2 can be rotatably mounted on the base plate 12. When the joint assembly moves, the first end of the first connecting member 2 can be rotated around the connection between it and the base plate 12. By measuring the angle between the first connecting member 2 and the base plate 12, the first joint angle in the joint assembly can be measured.

[0047] In one embodiment, referring to Figure 1The angle measuring device further includes a second limiter 10 , which is disposed on the pedal 11 and located on one side of the base plate 12 .

[0048] As an example, the angle measuring device also includes a second limiter 10. During installation, the second limiter 10 is set on the pedal 11, located on one side of the substrate 12, and can limit the first end of the joint assembly to improve the measurement stability and measurement accuracy.

[0049] In one embodiment, referring to Figure 1 The first connecting member 2 includes a transition portion 21 and a connecting portion 22 extending radially outward from one side of the transition portion 21; the transition portion 21 is rotatably mounted on the base 1; and the second connecting member 3 is movably mounted on the connecting portion 22.

[0050] As an example, the first connecting member 2 includes an adapter portion 21 and a connecting portion 22; when installed, the connecting portion 22 extends outward from one side of the adapter portion 21 along the radial direction of the adapter portion 21; the adapter portion 21 can be rotatably mounted on the base 1, so that the adapter portion 21 of the first connecting member 2 can be rotated around the connection between it and the base 1, and the first joint angle in the joint assembly can be measured by measuring the angle between the adapter portion 21 and the base 1. An angle pointer is provided on the first end of the first connecting member 2, i.e., the adapter portion 21, and the angle pointer is arranged relative to the angle scale 4. In this way, the joint angle is confirmed by the degree pointed by the angle pointer, thereby improving the measurement accuracy. The second connecting member 3 can be movably mounted on the connecting portion 22, and the total length of the second connecting member 3 and the first connecting member 2 can be adjusted to match the length of the joint connecting rod of the joint assembly, so as to facilitate the installation of the first end of the first connecting member 2 on the base 1, so that the angle measuring device is suitable for joint assemblies of different sizes.

[0051] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. An angle measuring device, characterized in that, comprising a base, a first connecting member and a second connecting member; The base is used to connect to the first end of the joint assembly, and an angle scale is provided on the base; The first end of the first connecting member is rotatably mounted on the base, and an angle pointer is provided on the first end of the first connecting member, and the angle pointer is arranged opposite to the angle scale; The second connecting member is movably installed at the second end of the first connecting member along the length direction of the first connecting member.

2. The angle measuring device according to claim 1, characterized in that, An adjustment slideway is provided at the second end of the first connecting member along the length direction of the first connecting member; and the second connecting member is movably installed in the adjustment slideway.

3. The angle measuring device according to claim 1, characterized in that, The angle measuring device further includes a length scale, which is provided on the first connecting member or the second connecting member and is located at the intersection of the first connecting member and the second connecting member.

4. The angle measuring device according to claim 1, characterized in that, The first connecting member is provided with a locking hole; the angle measuring device further comprises a locking member, which is passed through the locking hole and is used to lock the first connecting member and the second connecting member.

5. The angle measuring device according to claim 1, characterized in that, The angle measuring device further includes a first limiting member; the first limiting member is arranged on the second connecting member and is used to connect with the second end of the joint assembly.

6. The angle measuring device according to claim 5, characterized in that, The first limiting member is provided with a mounting surface, and the mounting surface is an arc-shaped surface connected to the second end of the joint assembly.

7. The angle measuring device according to claim 1, characterized in that The base is provided with a first positioning hole, and the first end of the first connecting member is provided with a second positioning hole; The angle measuring device further includes a positioning member, which is inserted into the first positioning hole and the second positioning hole.

8. The angle measuring device according to claim 1, characterized in that, The base includes a pedal and a base plate; The base plate is arranged on one side edge of the pedal, and the first end of the first connecting member is rotatably mounted on the base plate.

9. The angle measuring device according to claim 8, wherein, The angle measuring device further includes a second limiting member; the second limiting member is arranged on the pedal and located on one side of the base plate.

10. The angle measuring device according to claim 1, characterized in that, The first connecting member includes a transition portion and a connecting portion extending outwardly from one side of the transition portion along the radial direction of the transition portion; The adapter is rotatably mounted on the base; The second connecting member is movably mounted on the connecting portion.

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