Pull rope displacement sensor facilitating installation and debugging

Abstract

This utility model relates to the field of displacement sensor technology and discloses a pull-rope displacement sensor that is easy to install and debug. It includes a main cylinder assembly, an end cap assembly, and a sensing assembly. The main cylinder assembly includes a main cylinder with two symmetrical mounting slots at the top of its wall. Quick-release buckles are fixedly installed on the inner walls of both ends of the main cylinder. A mounting base is fixedly connected to the middle of the bottom of the main cylinder, and the mounting base has a slotted hole. This utility model achieves quick-release structure for rapid installation and removal of the end cap through the cooperation of the quick-release buckles and quick-release slots, the slotted hole, and the multi-screw hole design of the connecting plate. This facilitates maintenance by allowing for quick installation and removal of the end cap; the slotted hole adjusts the installation position, improving installation adaptability; and the multi-screw hole of the connecting plate ensures the coaxiality of the connecting shaft and the pull-rope drum, thus solving the problems of difficulty in ensuring coaxiality during installation and inconvenient disassembly and maintenance, and improving the efficiency of installation and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of displacement sensor technology, specifically to a pull-rope displacement sensor that is easy to install and debug. Background Technology

[0002] Due to their long measurement stroke and good accuracy, draw-wire displacement sensors are widely used in industrial automation, engineering machinery, and other fields. However, existing draw-wire displacement sensors still have the following problems in use: First, during installation, it is difficult to quickly and accurately ensure the coaxiality of the draw-wire drum and the sensor connecting shaft, which can easily lead to measurement errors; second, parameter calibration during debugging is cumbersome and lacks an intuitive and convenient debugging interface; third, the sensor's end caps and other components are inconvenient to disassemble and assemble, and maintaining the internal structure is time-consuming, affecting efficiency. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a pull rope displacement sensor that is easy to install and debug. It is equipped with a quick-release end cap assembly, a precise installation and positioning structure, and a sensor component that is easy to debug, thus solving the problems mentioned in the background technology, such as difficulty in ensuring the coaxiality of the pull rope drum and the connecting shaft, cumbersome debugging, and inconvenient disassembly and maintenance.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pull-rope displacement sensor that is easy to install and debug, including a main cylinder assembly, an end cap assembly, and a sensing assembly.

[0007] The main body assembly includes a main body, and two mounting slots are symmetrically opened at the top of the main body wall. Quick-release buckles are fixedly installed on the inner side walls of the front and rear sides of the openings at both ends of the main body. A mounting base is fixedly connected to the middle position of the bottom of the main body, and the mounting base has a waist-shaped hole.

[0008] The end cap assembly includes two side end caps, which are respectively fitted onto the two end openings of the main body cylinder. A bearing assembly hole is provided in the center of each side end cap, and quick-release slots that are adapted to and engage with the quick-release buckle are provided on the front and rear sides of the edge of each side end cap. A double ball bearing is installed in the bearing assembly hole.

[0009] The sensing component includes a connecting shaft, with its two ends respectively passing through two double ball bearings. Two light-shielding plates are symmetrically fixedly connected to the shaft. A photoelectric gate is provided inside the main body corresponding to the position of the light-shielding plate. The photoelectric gate is fixedly installed in the mounting slot on its corresponding side. A connecting screw is fixedly connected to one end of the connecting shaft, and a connecting plate is fixedly connected to the other end. A data processing unit is fixedly installed on the top of the two photoelectric gates. A debugging display screen and debugging buttons are provided at the front end of the data processing unit. A data cable is fixedly connected to the data port on the side of the data processing unit, which can be connected to external devices through the data cable.

[0010] The connecting screw or connecting disc is used to connect the drum for winding the pull rope, and the connecting shaft is kept coaxial with the drum when connected. When the drum winds up and unwinds the pull rope, it drives the connecting shaft to rotate. The photoelectric gate, in conjunction with the light-shielding plate, records the number of rotations. The number of rotations is multiplied by the inner diameter circumference of the drum to obtain the displacement.

[0011] As a further improvement of this utility model: the quick-release buckle is an elastic hook structure, and the quick-release slot is a slot that is adapted to engage with the elastic hook structure. Pressing the quick-release buckle can realize the quick disassembly and assembly of the side end cover and the main body cylinder, which facilitates the maintenance and adjustment of the internal structure.

[0012] As a further improvement of this utility model: the length direction of the waist-shaped hole is arranged along the radial direction of the main body cylinder, and there are two waist-shaped holes which are symmetrically distributed along the axial direction of the main body cylinder. The horizontal position of the mounting base can be adjusted through the waist-shaped holes to adapt to the position requirements of different installation scenarios.

[0013] As a further improvement of this utility model: the light-shielding plate is a strip-shaped plate, and the light-shielding plate is located within the light-transmitting notch of the photoelectric gate. When the connecting shaft rotates, the light-shielding plate can accurately block the light from the photoelectric gate, so that the photoelectric gate can accurately record the number of rotations and ensure the accuracy of displacement measurement.

[0014] As a further improvement of this utility model: the data processing unit integrates a microprocessor, which is electrically connected to the photoelectric gate, the debugging display screen, the debugging button, and the data line. By operating the debugging button, the microprocessor can quickly process the signal of the photoelectric gate and display the displacement value and calibration parameters on the debugging display screen, thus simplifying the debugging process.

[0015] As a further improvement of this utility model: the connecting disc has multiple connecting screw holes on its outer periphery. The multiple connecting screw holes are evenly distributed along the circumference of the connecting disc. When fixed with the rope drum by bolts, the coaxiality of the connecting shaft and the drum can be more accurately guaranteed, and the measurement error caused by coaxiality deviation can be reduced.

[0016] As a further improvement of this utility model: the main body cylinder is made of aluminum alloy, and the outer surface of the main body cylinder is provided with an anti-rust coating. The aluminum alloy material is lightweight and has high strength, and the anti-rust coating extends the service life of the main body cylinder and adapts to various working environments.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the quick-release structure enables rapid disassembly and assembly of the end cap through the cooperation of the quick-release buckle and quick-release slot, the waist-shaped hole and the multi-screw hole design of the connecting plate, which facilitates maintenance; the waist-shaped hole adjusts the installation position and improves the installation adaptability; the multi-screw hole of the connecting plate ensures the coaxiality of the connecting shaft and the pull rope drum, thereby solving the problems of difficulty in ensuring installation coaxiality and inconvenience in disassembly and maintenance, and improving the efficiency of installation and maintenance.

[0019] 2. In this utility model, by installing a photoelectric gate, a debugging display screen and debugging buttons in the through slot, the through slot provides space for the installation and fine adjustment of the photoelectric gate, ensuring the positional accuracy of the measuring components; the debugging display screen intuitively displays parameters, and the debugging buttons simplify operation, making the sensor debugging process more efficient, solving the problem of cumbersome debugging, and improving the convenience of debugging and measurement accuracy. Attached Figure Description

[0020] Figure 1 This is a perspective view of the entire utility model;

[0021] Figure 2 This is a partial sectional perspective view of the present invention.

[0022] Figure 3 This is an exploded perspective view of the external structure of this utility model;

[0023] Figure 4 This is a perspective view of the sensing component of this utility model.

[0024] In the diagram: 1. Main cylinder assembly; 2. End cap assembly; 3. Sensor assembly; 11. Main cylinder; 12. Mounting slot; 13. Quick-release buckle; 14. Mounting base; 15. Waist-shaped hole; 21. Side end cap; 22. Bearing assembly hole; 23. Quick-release slot; 24. Double ball bearing; 31. Photoelectric gate; 32. Connecting shaft; 33. Light shield; 34. Connecting screw; 35. Connecting plate; 36. Data processing body; 37. Debugging display screen; 38. Debugging button; 39. Data cable. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figures 1-4 In this embodiment of the utility model, the pull rope displacement sensor, which is easy to install and debug, includes a main tube assembly 1, an end cap assembly 2, and a sensing assembly 3.

[0029] The main body cylinder assembly 1 includes a main body cylinder 11. The top of the main body cylinder 11 has two symmetrically arranged mounting slots 12, providing an operating space for the installation and debugging of the photoelectric door 31. Quick-release buckles 13 are fixedly installed on the inner side walls of the front and rear sides of the openings at both ends of the main body cylinder 11. The elastic hook structure enables quick engagement and disassembly of the end cap. A mounting base 14 is fixedly connected to the middle position of the bottom of the main body cylinder 11. The mounting base 14 has a waist-shaped hole 15, which is arranged radially along the length direction of the main body cylinder 11. The two waist-shaped holes 15 are symmetrically distributed along the axial direction, which facilitates the adjustment of the horizontal position of the mounting base 14 and improves the installation adaptability.

[0030] The end cap assembly 2 includes two side end caps 21, which respectively cover the openings at both ends of the main body cylinder 11. A bearing assembly hole 22 is provided in the center of the side end cap 21. Quick release slots 23 are provided on the front and rear sides of the edge of the side end cap 21 to be adapted to and engaged with the quick release buckle 13. The quick release slots 23 are slots adapted to the elastic hook structure and work with the quick release buckle 13 to realize the quick disassembly and assembly of the end cap. A double ball bearing 24 is installed in the bearing assembly hole 22 to ensure the smoothness and stability of the rotation of the connecting shaft 32.

[0031] The sensing component 3 includes a connecting shaft 32, with both ends of the connecting shaft 32 respectively passing through two double ball bearings 24. Two light-shielding plates 33 are symmetrically fixedly connected to the shaft of the connecting shaft 32. The light-shielding plates 33 are strip-shaped plates located within the light-transmitting notch of the photoelectric gate 31. When the connecting shaft 32 rotates, they can precisely block the light from the photoelectric gate 31. The photoelectric gate 31 is installed inside the main body cylinder 11 at the position corresponding to the light-shielding plates 33. The photoelectric gate 31 is fixedly installed in the mounting slot 12 on its corresponding side. The mounting slot 12 provides installation space for the photoelectric gate 31 and facilitates fine-tuning of the position of the photoelectric gate 31 during debugging. A connecting screw 34 is fixedly connected to one end of the connecting shaft 32, and the other end of the connecting shaft 32... A connecting plate 35 is fixedly connected. Multiple connecting screw holes are evenly distributed around the end face of the connecting plate 35 to facilitate fixing to the rope drum with bolts, ensuring the coaxiality of the connecting shaft 32 and the drum. A data processing unit 36 ​​is fixedly installed on the top of the two photoelectric gates 31. The front end of the data processing unit 36 ​​is equipped with a debugging display screen 37 and a debugging button 38. The data processing unit 36 ​​integrates a microprocessor and is electrically connected to the photoelectric gates 31, the debugging display screen 37, the debugging button 38, and the data cable 39. It can quickly complete operations such as zero-point calibration and parameter setting. A data cable 39 is fixedly connected to the data port on the side of the data processing unit 36, which can be connected to external devices.

[0032] The connecting screw 34 or connecting disc 35 is used to connect the drum for winding the pull rope. When connecting, the connecting shaft 32 is kept coaxial with the drum. When the drum winds up and unwinds the pull rope, it drives the connecting shaft 32 to rotate. The photoelectric gate 31, together with the light shield 33, records the number of rotations. The number of rotations is multiplied by the inner diameter circumference of the drum to obtain the displacement.

[0033] The quick-release buckle 13 is an elastic hook structure, and the quick-release slot 23 is a slot that is adapted to engage with the elastic hook structure. Pressing the quick-release buckle 13 can quickly detach and assemble the side end cover 21 and the main body cylinder 11, which facilitates the maintenance and adjustment of the internal structure.

[0034] The length direction of the waist-shaped hole 15 is arranged along the radial direction of the main body cylinder 11, and there are two waist-shaped holes 15 which are symmetrically distributed along the axial direction of the main body cylinder 11. The horizontal position of the mounting base 14 can be adjusted through the waist-shaped hole 15 to adapt to the position requirements of different installation scenarios.

[0035] The light-shielding plate 33 is a strip-shaped plate, and the light-shielding plate 33 is located in the light-transmitting notch of the photoelectric gate 31. When the connecting shaft 32 rotates, the light-shielding plate 33 can accurately block the light of the photoelectric gate 31, so that the photoelectric gate 31 can accurately record the number of rotations and ensure the accuracy of displacement measurement.

[0036] The data processing unit 36 ​​integrates a microprocessor, which is electrically connected to the photoelectric gate 31, the debugging display screen 37, the debugging button 38, and the data cable 39. By operating the debugging button 38, the microprocessor can quickly process the signal of the photoelectric gate 31 and display the displacement value and calibration parameters on the debugging display screen 37, simplifying the debugging process.

[0037] Multiple connecting screw holes are provided on the outer periphery of the end face of the connecting disc 35. The multiple connecting screw holes are evenly distributed along the circumference of the connecting disc 35. When fixed with the rope drum by bolts, the coaxiality of the connecting shaft 32 and the drum can be more accurately guaranteed, reducing the measurement error caused by coaxiality deviation.

[0038] The main body cylinder 11 is made of aluminum alloy and has an anti-rust coating on its outer surface. The aluminum alloy material is lightweight and has high strength, and the anti-rust coating extends the service life of the main body cylinder 11 and adapts to various working conditions.

[0039] The working principle of this utility model is as follows: The sensor is initially fixed to the equipment or bracket using the oblong hole 15 on the mounting base 14. The oblong hole 15 allows for radial adjustment of the mounting base 14 along the main body cylinder 11 to accommodate different installation spacings. A rope drum is connected via a connecting screw 34 or a connecting disc 35. The multi-hole design of the connecting disc 35, combined with bolt fixing, accurately ensures the coaxiality of the connecting shaft 32 and the drum, avoiding measurement errors due to coaxiality deviation. Pressing the quick-release buckle 13 quickly opens the side end cover 21, allowing for fine-tuning of the position of the internal photoelectric door 31. The mounting slot 12 provides operating space for the photoelectric door 31. After closing the side end cover 21, zero-point calibration and parameter settings are performed using the debugging button 38 on the data processing unit 36. The debugging display screen 37 displays the displacement value and calibration parameters in real time. The system simplifies the debugging process. When the rope moves with the object being measured, it drives the drum to rotate, and the drum synchronously drives the connecting shaft 32 to rotate. The light shield 33 on the connecting shaft 32 rotates with the shaft, periodically blocking the light from the photoelectric gate 31. The photoelectric gate 31 converts the light signal into an electrical signal and transmits it to the data processing unit 36. The microprocessor in the data processing unit 36 ​​processes the signal, combines the inner diameter circumference of the drum with the number of rotations, calculates the displacement, and displays it on the debugging display screen 37. At the same time, the data can be transmitted to external devices via the data cable 39. When it is necessary to maintain the internal structure, press the quick-release buckle 13 to separate the quick-release buckle 13 from the quick-release slot 23 of the side end cover 21, and the side end cover 21 can be quickly removed to inspect or replace components such as the connecting shaft 32 and the double ball bearing 24, thus improving maintenance efficiency.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pull-rope displacement sensor that is easy to install and debug, comprising a main tube assembly (1), wherein the main tube assembly (1) is configured with an end cap assembly (2) and a sensing assembly (3). Its features are: The main body cylinder assembly (1) includes a main body cylinder (11). The top of the main body cylinder (11) has two symmetrical mounting slots (12). The inner walls of the front and rear sides of the openings at both ends of the main body cylinder (11) are fixedly installed with quick-release buckles (13). The bottom middle position of the main body cylinder (11) is fixedly connected with a mounting base (14). The mounting base (14) has a waist-shaped hole (15). The end cap assembly (2) includes two side end caps (21), which are respectively fitted onto the openings at both ends of the main body cylinder (11). The center of each side end cap (21) is provided with a bearing assembly hole (22). The front and rear sides of the edge of each side end cap (21) are provided with quick-release slots (23) that are adapted to and engage with the quick-release buckle (13). A double ball bearing (24) is installed in the bearing assembly hole (22). The sensing component (3) includes a connecting shaft (32), with both ends of the connecting shaft (32) passing through two double ball bearings (24). Two light-shielding plates (33) are symmetrically fixedly connected to the shaft of the connecting shaft (32). A photoelectric gate (31) is provided in the main body (11) at the position corresponding to the light-shielding plate (33). The photoelectric gate (31) is fixedly installed in the mounting slot (12) on its corresponding side. A connecting screw (34) is fixedly connected to one end of the connecting shaft (32), and a connecting plate (35) is fixedly connected to the other end of the connecting shaft (32). A data processing body (36) is fixedly installed on the top of the two photoelectric gates (31). A debugging display screen (37) and a debugging button (38) are provided at the front end of the data processing body (36). A data cable (39) is fixedly connected to the data port on the side of the data processing body (36).

2. The pull-string displacement sensor that is easy to install and debug according to claim 1, characterized in that: The quick-release buckle (13) is an elastic hook structure, and the quick-release slot (23) is a slot that is adapted to engage with the elastic hook structure.

3. The draw-wire displacement sensor that is easy to install and debug according to claim 1, characterized in that: The length direction of the waist-shaped hole (15) is arranged radially along the main body cylinder (11), and there are two waist-shaped holes (15) which are symmetrically distributed along the axial direction of the main body cylinder (11).

4. The draw-wire displacement sensor that is easy to install and debug according to claim 1, characterized in that: The light-shielding plate (33) is a strip-shaped plate, and the light-shielding plate (33) is located in the light-transmitting notch of the photoelectric gate (31).

5. The drawstring displacement sensor that is easy to install and debug according to claim 1, characterized in that: The data processing unit (36) integrates a microprocessor, which is electrically connected to the photoelectric gate (31), the debugging display screen (37), the debugging button (38), and the data line (39).

6. The drawstring displacement sensor that is easy to install and debug according to claim 1, characterized in that: The connecting disk (35) has multiple connecting screw holes on its outer periphery, and the multiple connecting screw holes are evenly distributed along the circumference of the connecting disk (35).

7. The draw-wire displacement sensor that is easy to install and debug according to claim 1, characterized in that: The main body cylinder (11) is made of aluminum alloy, and the outer surface of the main body cylinder (11) is provided with an anti-rust coating.

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