A displacement meter positioning device

Abstract

The present invention provides a displacement meter positioning device, comprising a displacement meter fixedly mounted on a component, a light receiving terminal mounted on the displacement meter, a light-transmitting hole defined in the light-receiving terminal, the axis of the light-transmitting hole being arranged parallel to the axis of the displacement meter, and a light-emitting mechanism mounted on the component for emitting linear light, the position of the light-emitting mechanism corresponding to the position of the light-transmitting hole. The light of the present invention is always kept horizontal or vertical. Before installing the displacement meter, the light-receiving terminal is temporarily mounted on the displacement meter using a clip. The displacement meter's mounting position and angle are then adjusted using light passing through the light-transmitting hole. The device has a simple structure and is convenient to use.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a displacement meter positioning device. Background Art

[0002] Rod-type displacement meters are widely used in civil engineering field testing and laboratory experiments to measure vertical and horizontal displacements. However, due to the lack of dedicated positioning devices, rod-type displacement meters rely solely on visual positioning during installation. This results in low installation accuracy, affecting the accuracy of displacement measurements. Summary of the Invention

[0003] In order to solve the problem of low installation accuracy of displacement meters for measuring vertical and horizontal positions, the present invention provides a displacement meter positioning device, comprising a displacement meter fixedly mounted on a component, a light receiving terminal mounted on the displacement meter, a light transmitting hole being provided on the light receiving terminal, the axis of the light transmitting hole being arranged parallel to the axis of the displacement meter, and a light emitting mechanism for emitting linear light being further mounted on the component, the position of the light emitting mechanism corresponding to the position of the light transmitting hole.

[0004] Preferably, the light receiving terminal includes a light-transmitting tube and a clamping mechanism for securing the displacement meter, the clamping mechanism being secured to the sidewall of the light-transmitting tube, and the light-transmitting hole being arranged in the axial direction of the light-transmitting tube. The light-transmitting tube is cylindrical, and a light-transmitting hole is provided in the axial direction of the light-transmitting tube. The light-emitting mechanism emits light. Utilizing the principle of linear propagation of light, if the light emitted by the light-emitting mechanism passes through the light-transmitting hole of the light-transmitting tube, it indicates that the displacement meter has been properly installed, i.e., the displacement meter is set horizontally or vertically; if the light emitted by the light-emitting mechanism does not pass through the light-transmitting hole of the light-transmitting tube, it indicates that the displacement meter is not properly installed, i.e., the displacement meter is not set horizontally or vertically.

[0005] Furthermore, the axis of the light-transmitting hole is collinear with the axis of the light-transmitting tube. When the light-receiving terminal is mounted on the displacement meter, it is necessary to ensure that the axis of the light-transmitting hole on the light-receiving terminal remains parallel to the axis of the displacement meter. To facilitate the parallel arrangement of the axis of the light-transmitting hole on the light-receiving terminal and the axis of the displacement meter, the axis of the light-transmitting hole is collinear with the axis of the light-transmitting tube. The light-transmitting tube is a circular tube, and the side wall of the circular tube is parallel to the axis of the light-transmitting tube. The axis of the light-transmitting hole is collinear with the axis of the light-transmitting tube, so the side wall of the light-transmitting tube is parallel to the axis of the light-transmitting hole. At this time, it is only necessary to ensure that the side wall of the light-transmitting tube is parallel to the axis of the displacement meter, which greatly facilitates the installation of the light-receiving terminal.

[0006] Preferably, the clamping mechanism is a buckle, and the opening of the buckle is arranged away from the light-transmitting tube. The clamping mechanism can be a Velcro, a clamp, a buckle, etc. The present application adopts a buckle structure, the back of the buckle is fixed to the light-transmitting tube, and the opening of the buckle is used to fix to the housing of the displacement meter.

[0007] Furthermore, the light-emitting mechanism includes a magnetic base, a bracket, a light source ball, a light source and a gravity block arranged in the light source ball, the bracket is fixed on the magnetic base, the light source ball is rotatably arranged on the bracket, the light source is located at the center of the light source ball, and 4 light holes connected to the light source are evenly distributed on the light source ball. The light holes are located at the diameter of the circle with the largest cross-sectional area of ​​the light source ball, and the surface where the 4 light holes are located is perpendicular to the rotation center of the light source ball. The center of gravity of the gravity block is located on the central axis of one of the light holes, and the gravity block is arranged close to the light hole, and the center of gravity of the gravity block is set away from the center of the light source ball. The light-emitting mechanism can be fixed by means of glue bonding, screws and bolts, etc. The present invention uses magnetism to fix the light-emitting mechanism. The general component is a metal part (which can be attracted by magnetism). The light-emitting mechanism is fixed to the component through a magnetic base. The light source ball can rotate on the bracket. The center of gravity of the gravity block is located on the central axis of one of the light holes and is set close to the light hole. The center of gravity is also deviated from the center of the light source ball, so that the light hole is always vertically downward. Since the four light holes are evenly distributed on the central cross-section of the rotation direction of the light source ball, the distance between two adjacent light holes is 90°, so that the light emitted by the other three holes is vertical or horizontal. The principle of self-weight is used to make the light emitted by the light source ball always horizontal or vertical. In actual use, the magnetic base and the displacement meter may not necessarily be installed on the same surface. The use of the gravity block and the four light holes allows the magnetic base to be installed at will. It is only necessary to ensure that the light can be irradiated on the light receiving terminal.

[0008] Preferably, the light source ball is rotatably mounted on the bracket via a latch. The bracket is arc-shaped, and its diameter is larger than that of the light source ball. Latch pins are inserted into both ends of the bracket, which are then inserted into the light source ball, allowing the light source ball to rotate around the latch pins, which are perpendicular to the plane of the four light holes.

[0009] Furthermore, the displacement meter is a rod-type displacement meter.

[0010] Beneficial effects: The light of the present invention always remains horizontal or vertical. Before installing the displacement meter, the light receiving terminal is temporarily installed on the displacement meter with a buckle, and then the installation position and angle of the displacement meter are adjusted by using light passing through the light hole. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a schematic diagram of the overall structure (component level) of the present invention;

[0012] Figure 2 It is a schematic diagram of the overall structure of the present invention (with components vertical);

[0013] Figure 3 This is a schematic structural diagram of a light receiving terminal according to the present invention;

[0014] Figure 4 Schematic diagram of the light-emitting mechanism of the present invention;

[0015] Figure 5 This is a schematic diagram of the internal structure of the light source ball of the present invention;

[0016] 1. Component; 2. Light-emitting mechanism; 3. Displacement meter; 4. Light receiving terminal; 21. Light source ball; 22. Bracket; 23. Pin; 24. Magnetic base; 25. Gravity block; 26. Light hole; 41. Light tube; 42. Light hole; 43. Buckle. DETAILED DESCRIPTION

[0017] Example 1

[0018] like Figure 1 As shown, a displacement meter positioning device includes a displacement meter 3 fixedly set on a component 1, the component 1 is placed horizontally, the displacement meter 3 is a rod-type displacement meter 3, a light receiving terminal 4 is installed on the displacement meter 3, a light receiving terminal 4 is provided with a light-transmitting hole 42, the axis of the light-transmitting hole 42 is arranged parallel to the axis of the displacement meter 3, and a light-emitting mechanism 2 for emitting linear light is also installed on the component 1, and the position of the light-emitting mechanism 2 corresponds to the position of the light-transmitting hole 42.

[0019] like Figure 3As shown, the light receiving terminal 4 includes a light-transmitting tube 41 and a buckle 43. The buckle 43 fixes the light receiving terminal 4 to the displacement meter 3. The back of the buckle 43 is fixed to the side wall of the light-transmitting tube 41. Buckles 43 are provided on the upper and lower sides of the side wall of the light-transmitting tube 41. The opening of the buckle 43 faces the displacement meter 3, thereby fixing the light receiving terminal 4 to the displacement meter 3. The light-transmitting hole 42 is provided on the light-transmitting tube 41, and the axis of the light-transmitting hole 42 is collinear with the axis of the light-transmitting tube 41. When the light receiving terminal 4 is mounted on the displacement meter 3, it is necessary to ensure that the axis of the light-transmitting hole 42 on the light-receiving terminal 4 remains parallel to the axis of the displacement meter 3. To facilitate the parallel arrangement of the axis of the light-transmitting hole 42 on the light-receiving terminal 4 and the axis of the displacement meter 3, the axis of the light-transmitting hole 42 is collinear with the axis of the light-transmitting tube 41. In this case, it is only necessary to ensure that the side wall of the light-transmitting tube 41 is parallel to the axis of the displacement meter 3, thereby facilitating the mounting of the light receiving terminal 4 on the displacement meter 3. The two clips 43 on the side wall of the light-transmitting tube 41 are in the same vertical direction. When the two clips 43 are clipped onto the housing of the displacement meter 3, the clipping positions of the two clips 43 also need to be kept in the same vertical direction to prevent the light receiving terminal 4 from being offset during installation, thereby affecting the accuracy.

[0020] like Figure 4 and 5 As shown, the light-emitting mechanism 2 includes a magnetic base 24, a bracket 22, a light source ball 21, a light source and a gravity block 25 arranged in the light source ball 21, the bracket 22 is fixed on the magnetic base 24, the light source ball 21 is rotatably set on the bracket 22 by a pin 23, the light source is located at the center of the light source ball 21, and 4 light holes 26 connected to the light source are evenly distributed on the light source ball 21. The light holes 26 are located at the diameter of the circle with the largest cross-sectional area of ​​the light source ball 21, and the surface where the 4 light holes 26 are located is perpendicular to the rotation center of the light source ball 21, the center of gravity of the gravity block 25 is located on the central axis of one of the light holes 26, and the gravity block 25 is set close to the light hole 26, and the center of gravity of the gravity block 25 deviates from the center of the light source ball 21. Generally, component 1 is a metal part that can be attracted by magnetism. The light-emitting mechanism 2 is fixed to component 1 through a magnetic base 24. The light source ball 21 rotates on the bracket 22 through a pin 23. The center of gravity of the gravity block 25 is located on the central axis of one of the light holes 26 and is arranged close to the light hole 26, so that the light hole 26 is always vertically downward. The principle of self-weight is used to make the light emitted from the light hole 26 on the light source ball 21 always vertically downward and shine into the light-transmitting hole 42. If it can pass through the light-transmitting hole 42, it means that the displacement meter 3 has been installed in place, that is, the displacement meter 3 is perpendicular to the ground. If it cannot pass through the light-transmitting hole 42, it means that the displacement meter 3 has not been installed in place, that is, the displacement meter 3 is not perpendicular to the ground. The position of the displacement meter 3 needs to be adjusted until the light emitted by the light source ball 21 can pass through the light-transmitting hole 42.

[0021] Working Principle: First, secure the displacement meter 3 to the component 1. Then, snap the clip 43 of the light-receiving terminal 4 onto the displacement meter 3. Since the axis of the light-transmitting hole 42 on the light-receiving terminal 4 is collinear with the axis of the light-receiving terminal 4, it is only necessary to ensure that the edge of the light-receiving terminal 4 is parallel to the axis of the displacement meter 3. The magnetic base 24 of the light-emitting mechanism 2 is then magnetically secured to the component 1. During installation, hold the base. Due to the action of the gravity block 25, a light hole 26 will emit light vertically downward. Align this light hole 26 with the light-transmitting hole 42 and install it. After fixing the light-emitting mechanism 2 on the component 1 and keeping it stationary, check whether the light emitted by the light source ball 21 passes through the light-transmitting hole 42. Put your hand on the bottom of the light-transmitting hole 42 to check whether the light passes through the light-transmitting hole 42 and shines on your hand. If the light passes through the light-transmitting hole 42 and reaches your hand, it means that the displacement meter 3 has been installed in place. If the light does not pass through the light-transmitting hole 42 and the hand is not illuminated by the light, it means that the displacement meter 3 is not installed in place. You need to adjust the position of the displacement meter 3 until the light emitted by the light source ball 21 passes through the light-transmitting hole 42.

[0022] Example 2

[0023] The only difference from the first embodiment is that: Figure 2 As shown, a displacement meter positioning device is provided, wherein the component 1 is placed vertically and the displacement meter 3 is placed horizontally on the component 1 .

[0024] Working principle: First fix the displacement meter 3 horizontally on the component 1, and then clamp the buckle 43 of the light receiving terminal 4 on the displacement meter 3. Since the axis of the light-transmitting hole 42 on the light receiving terminal 4 is collinear with the axis of the light receiving terminal 4, it is only necessary to ensure that the edge of the light receiving terminal 4 is parallel to the axis of the displacement meter 3. Then fix the magnetic base 24 of the light-emitting mechanism 2 on the component 1 through magnetic installation. When installing, hold the base first. Due to the action of the gravity block 25, a light hole 26 will emit light vertically downward. At this time, the light hole 26 on the left side of the vertically downward light hole 26 emits horizontal light to the left. Then align the light hole 26 with the light-transmitting hole 42 for installation. After fixing the light-emitting mechanism 2 on the component 1 and keeping it still, see whether the light emitted by the light source ball 21 passes through the light-transmitting hole 42. Put your hand on the bottom of the light-transmitting hole 42 to see whether the light passes through the light-transmitting hole 42 to your hand. If the light passes through the light-transmitting hole 42 to your hand, it means that the displacement meter 3 has been installed in place. If the light does not pass through the light-transmitting hole 42 and the hand is not exposed to light, it means that the displacement meter 3 is not installed in place. You need to adjust the position of the displacement meter 3 until the light emitted by the light source ball 21 passes through the light-transmitting hole 42.

Claims

1. A displacement meter positioning device, characterized in that: The present invention comprises a displacement meter (3) fixedly mounted on a component (1), a light receiving terminal (4) being mounted on the displacement meter (3), a light transmission hole (42) being provided on the light receiving terminal (4), the axis of the light transmission hole (42) being arranged parallel to the axis of the displacement meter (3), and a light emitting mechanism (2) for emitting linear light being mounted on the component (1), the position of the light emitting mechanism (2) corresponding to the position of the light transmission hole (42); the displacement meter (3) is a rod-type displacement meter (3); The light-emitting mechanism (2) comprises a magnetic base (24), a bracket (22), a light source ball (21), a light source, and a gravity block (25) arranged in the light source ball (21); the bracket (22) is fixed on the magnetic base (24); the light source ball (21) is rotatably arranged on the bracket (22); the light source is located at the center of the light source ball (21); and four light holes (26) connected to the light source are evenly distributed on the light source ball (21); the light holes (26) are located at the center of the light source ball (21). The diameter of the circle with the largest cross-sectional area of ​​the light source ball (21), and the surface where the four light holes (26) are located is perpendicular to the rotation center of the light source ball (21), the center of gravity of the gravity block (25) is located on the central axis of one of the light holes (26), and the gravity block (25) is set close to the light hole (26), and the center of gravity of the gravity block (25) is set away from the center of the light source ball (21); the light source ball (21) is rotatably set on the bracket (22) through the pin (23).

2. A displacement meter positioning device according to claim 1, characterized in that: The light receiving terminal (4) comprises a light-transmitting tube (41) and a clamping mechanism for fixing to the displacement meter (3); the clamping mechanism is fixed to the side wall of the light-transmitting tube (41); and the light-transmitting hole (42) is arranged in the axial direction of the light-transmitting tube (41).

3. A displacement meter positioning device according to claim 2, characterized in that: The axis of the light-transmitting hole (42) is collinear with the axis of the light-transmitting tube (41).

4. The displacement meter positioning device according to claim 2, characterized in that: The clamping mechanism is a buckle (43), and an opening of the buckle (43) is arranged away from the light-transmitting tube (41).

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