Cable length measuring device

Abstract

The application relates to a cable length measuring device in the field of electric wire and cable length measurement, which comprises a base, a sliding frame, a winding assembly, an abutting mechanism and a collecting assembly; the base is a cuboid, the sliding frame is arranged along the length direction of the base, the winding assembly comprises a fixing rod and wire columns, a plurality of wire columns form a first wire column group and a second wire column group, the first wire column group and the second wire column group are respectively arranged at the two ends of the length direction of the base, the fixing rod is arranged on the base on the side of the first wire column group, the abutting mechanism is slidingly connected to the sliding frame, and the collecting assembly comprises a displacement sensor and an optical fiber sensor. The cable length measuring device provided by the application can accurately measure the length of a to-be-measured cable, improves the measurement accuracy, can realize semi-automatic measurement and automatic measurement with automatic equipment, greatly improves the measurement efficiency, and effectively avoids the problems of low efficiency, poor accuracy and easy errors caused by manual measurement.

Description

Technical Field

[0001] This invention relates to the field of wire and cable length measurement, and more specifically, to a cable length measuring device. Background Technology

[0002] Measuring the length of wires and cables is crucial for rapid inspection, and accurate length determination is also essential during installation and maintenance to ensure safety and reliability. Currently, methods for measuring wire and cable length are often relatively simple, relying heavily on direct measurement methods using tools like tape measures and rulers. This approach is not only inefficient and inaccurate, but manual marking is also prone to errors.

[0003] A search of existing technologies revealed CN216717276U, which discloses a rapid wire and cable length detection system. This system includes a processor, a power supply, two dark chambers, and an energized light-emitting device and a photosensitive sensor in each chamber. The photosensitive sensors in both dark chambers are connected to the processor. The positive terminal of the energized light-emitting device in one chamber is connected to the positive terminal of the power supply via a connecting wire, and the negative terminal of the energized light-emitting device in the other chamber is connected to the negative terminal of the power supply via a connecting wire. The remaining terminals of both energized light-emitting devices are used to connect the wire or cable to be tested. This device can solve some of the problems associated with manual marking, but it is only suitable for measuring the length of relatively short cables, thus having a significant limitation on cable length. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the purpose of this invention is to provide a cable length measuring device.

[0005] A cable length measuring device according to the present invention includes a base, a carriage, a winding assembly, an abutment mechanism, and a data acquisition assembly;

[0006] The base is a cuboid, the carriage is arranged along the length of the base, the winding assembly includes a fixing rod and a wire post, and multiple wire posts form a first wire post group and a second wire post group. The first wire post group and the second wire post group are respectively arranged at both ends of the base in the length direction. The fixing rod is arranged on the base on one side of the first wire post group. The abutment mechanism is slidably connected to the carriage. The acquisition assembly includes a displacement sensor and an optical fiber sensor.

[0007] One end of the cable under test is connected to the fixed rod, and the other end of the cable under test is wound in an S-shape around the posts of the second post group and / or the first post group. The fiber optic sensor is used to detect whether the cable under test is wrapped around each post. After the abutting mechanism slides a preset distance in a straight line, the other end of the cable under test comes into contact with the abutting mechanism. The displacement sensor is used to collect the displacement distance of the abutting mechanism. The length of the cable under test is obtained through the data collected by the displacement sensor and the fiber optic sensor.

[0008] In some embodiments, the probe is cylindrical or semi-cylindrical, with a smooth cylindrical surface, and the cable under test is connected to the arc surface of the probe.

[0009] In some embodiments, the number of wires in the first wire group and the second wire group is the same, and the first wire group has multiple wires.

[0010] In some embodiments, the base is provided with a transmission hole located outside the wire post, the light sensor is mounted on the lower surface of the base, and the fiber optic sensor detects whether the wire post is wrapped with the cable to be tested through the transmission hole.

[0011] In some embodiments, the contact mechanism includes a slide block and a contact rod, the slide block being slidably connected to the carriage, and the contact rod being connected to the side of the slide block, the contact rod being used to contact the other end of the cable to be tested.

[0012] In some embodiments, there are multiple abutment rods arranged side by side.

[0013] In some embodiments, the carriage includes support seats and sliding rods, with two sets of support seats fixed at both ends of the base along its length, and two sliding rods connected between the two sets of support seats in a parallel manner, and the carriage slidably connected to the two sliding rods.

[0014] In some embodiments, the displacement sensor is located on a base on one side of one of the sets of supports, and a position detection plate is provided on the side of the slide to reflect the signal emitted by the displacement sensor.

[0015] In some implementations, the sensor uses the RS485 open protocol for communication.

[0016] In some embodiments, a constant force reset device is also included, which is connected to the carriage and has an elastic connector connected to the abutment mechanism. The constant force reset device is used to reset the abutment mechanism.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The cable length measuring device provided by the present invention can accurately measure the length of the cable to be measured, improve the measurement accuracy, and realize semi-automation and automatic detection in conjunction with automatic equipment, which greatly improves the measurement efficiency and effectively avoids the problems of low efficiency, poor accuracy and easy error caused by manual measurement.

[0019] 2. The cable length measuring device provided by the present invention further improves the measurement accuracy and automation level and increases the measurement efficiency by setting a constant force reset device. Attached Figure Description

[0020] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a frontal perspective three-dimensional schematic diagram of one embodiment of the cable length measuring device of the present invention;

[0022] Figure 2 This is a rear-view perspective three-dimensional schematic diagram of one embodiment of the cable length measuring device of the present invention.

[0023] Figure 3 This is a bottom view of one embodiment of the cable length measuring device of the present invention. Detailed Implementation

[0024] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0025] Example 1

[0026] This embodiment provides a cable length measuring device, such as... Figure 1-3As shown, the system includes a base 1, a carriage 2, a winding assembly 3, a contact mechanism 4, and a collection assembly 5. The base 1, serving as the platform for mounting the carriage 2, winding assembly 3, contact mechanism 4, and collection assembly 5, has a cuboid shape. The carriage 2 supports the contact mechanism 4, which slides linearly on the carriage 2. In some embodiments, the carriage 2 mainly includes support seats 21 and sliding rods 22. Two sets of support seats 21 are fixed side-by-side at intervals along the length of the base 1, with each set located near a corner on the same side of the base 1. The two ends of the sliding rods 22 are fixed to the two sets of support seats 21. There are two sliding rods 22, connected vertically between the two sets of support seats 21 to improve the stability of the contact mechanism 4 sliding on the sliding rods 22 during its sliding process.

[0027] The winding assembly 3 mainly includes a fixing rod 31 and wire posts 32. There are multiple wire posts 32, forming two sets of wire post groups, respectively denoted as the first wire post group 321 and the second wire post group 322. In some embodiments, both the first wire post group 321 and the second wire post group 322 contain multiple wire posts 32 to increase the length range of the cable under test. In some embodiments, the first wire post group 321 and the second wire post group 322 contain the same number of wire posts 32, for example, as... Figure 1 As shown, each of the first and second wire post groups 321 and 322 contains three wire posts 32. The multiple wire posts 32 in the first and second wire post groups 321 and 322 are fixed to the surface of the base 1 in an array along the width direction of the base 1, with the first and second wire post groups 321 and 322 located near the two ends of the base 1 along its length direction, respectively. A fixing rod 31 is fixed to the base 1 and located on one side of the first wire post group 321. In some embodiments, the wire post 32 is cylindrical or semi-cylindrical, with a smooth surface, and the cable to be measured is in close contact with the arc surface of the wire post 32 when wound around it, thereby improving the accuracy of the calculated cable length.

[0028] The abutting mechanism 4 mainly includes a slide block 41 and an abutting rod 42. One end of the slide block 41 is provided with sliding holes, the number of which matches the number of slide rods 22. For example, when there are two slide rods 22 arranged vertically, there are two sliding holes arranged vertically. The slide block 41 is slidably connected to the two slide rods 22 through the two sliding holes, and slides linearly along the slide rods 22. The other end of the slide block 41 extends a predetermined distance along the width direction of the base 1. The upper end of the abutting rod 42 is connected to the side of the slide block 41, and the lower end of the abutting rod 42 is located above the surface of the base 1. In some embodiments, the slide block 41 is a split structure, including a slider 411 and a connecting block 412. The slider 411 is slidably connected to the slide rods 22. The connecting block 412 is an L-shaped block, with its short side fitting against the surface of the slider 411 and fastened with bolts. The upper end of the abutting rod 42 is fixed to the side of the connecting block 412. In some implementations, a handle 6 is installed at the other end of the slide block 41, and the abutment mechanism 4 is manually operated by the handle 6 to move linearly along the slide rod 22.

[0029] The acquisition component 5 mainly includes a displacement sensor 51 and an optical fiber sensor 52. The displacement sensor 5 is mounted on the base 1 and located on one side of the second post group 322. The displacement sensor 5 is mainly used to detect the displacement distance of the slide 41. Based on the initial position of the slide 41, the length of the free portion of the cable under test located between the first post group 321 and the second post group 322 can be calculated. The free portion of the cable under test is relative to the length of the fixed portion wound between the posts 32 of the fixed rod 31 and the second post group 322, or between the posts 32 of the second post group 322 and the first post group 321. In some embodiments, a position detection plate 413 is provided on the slide 41. The position detection plate 413 is used to receive and reflect the signal from the displacement sensor 51, so that the displacement sensor 5 can accurately acquire the displacement information of the slide 41. In some embodiments, the displacement sensor 51 uses the RS485 open protocol for communication and has an integrated layout, which effectively reduces wiring work and labor costs.

[0030] Fiber optic sensor 52 is used to detect whether the cable under test is wrapped around the post 32, so as to calculate the data of the entire segment of the cable under test. In some embodiments, the number of fiber optic sensors 52 is the same as the number of posts 32, and each fiber optic sensor 52 is disposed on one side of the post 32 to facilitate detection of whether the cable under test is wrapped around the post 32. In some embodiments, a transmission hole 11 is provided on the base 1 outside the post 32; the transmission hole 11 is a through hole. The fiber optic sensor 52 is fixed to the lower surface of the base 1 by a tooling component, and the fiber optic sensor 52 detects whether the cable under test is wrapped around the corresponding post 32 located on the upper surface of the base 1 through the transmission hole 11. Since the fiber optic sensor 52 detects whether the cable under test is located on the outer side of the post 32 from the bottom up, the detection accuracy can be improved by avoiding other influencing factors.

[0031] The working principle of the cable length measuring device provided in this embodiment is illustrated by taking the cable under test wrapped around the first and second post groups as an example: One end of the cable under test is connected to the fixing rod 31, for example, by clamping. The other end of the cable under test first passes around the outermost post 32 in the direction of the second post group 322, then passes around the outermost post 32 in the direction of the first post group 321, and then moves towards and wraps around the post 32 adjacent to the outermost post 32 in the second post group 322, and so on. That is, after one end of the cable under test is connected to the fixing rod 31, its other end is wrapped around the posts 32 of the second post group 321 and the first post group 321 in an S-shaped winding manner until the other end of the cable under test is located between the first post group 321 and the second post group 322. At this time, the drive slide 41 moves a predetermined distance in a straight line along the slide rod 22 from the initial position, so that the other end of the cable under test comes into contact with the abutment rod 42. The displacement sensor 51 emits a signal, which is reflected back to the displacement sensor by the position detection plate 413 to obtain the moving distance information of the slide 41. The background program calculates the length of the free portion of the cable under test located between the first post group 321 and the second post group 322. The fiber optic sensor 52 detects the number of posts 32 wound around the cable under test, and then calculates the length of the fixed portion of the cable under test based on the number of posts 32 wound around. Therefore, the sum of the length of the free portion and the length of the fixed portion of the cable under test is the overall length. The cable length measuring device provided by this invention can accurately measure the length of the cable under test, improve measurement accuracy, and achieve semi-automation and automated detection in conjunction with automated equipment, greatly improving measurement efficiency and effectively avoiding the problems of low efficiency, poor accuracy, and easy error caused by manual measurement.

[0032] Example 2

[0033] This embodiment 2 is based on embodiment 1. By incorporating a constant force reset device, it further improves measurement accuracy and automation, thereby enhancing measurement efficiency. Specifically:

[0034] like Figure 1-3 As shown, a constant force resetter 7 is mounted on the slide 2, and the constant force resetter 7 and the displacement sensor 51 are located at the same end of the slide 2. In some embodiments, the constant force resetter 7 is a spring-type constant force resetter. The elastic connector 71 of the constant force resetter 7 is connected to the slide 41. Because the position of the elastic connector 71 of the constant force resetter 7 can remain stably in the same position, the slide 41 can be reset to the initial position after movement, which not only improves automation efficiency, but also improves measurement accuracy by keeping the position of the slide 41 relatively fixed.

[0035] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0036] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A cable length measuring device, characterized in that, It includes a base (1), a carriage (2), a winding assembly (3), a contacting mechanism (4), and a data acquisition assembly (5); The base (1) is a cuboid, the carriage (2) is arranged along the length of the base (1), the winding assembly (3) includes a fixing rod (31) and a wire post (32), and multiple wire posts (32) form a first wire post group (321) and a second wire post group (322). The first wire post group (321) and the second wire post group (322) are respectively arranged at both ends of the base (1) along its length. The fixing rod (31) is arranged on the base (1) on one side of the first wire post group (321). The abutment mechanism (4) is slidably connected to the carriage (2). The acquisition assembly (5) includes a displacement sensor (51) and an optical fiber sensor (52). One end of the cable to be tested is connected to the fixed rod (31), and the other end of the cable to be tested is wound in an S-shape around the second post group (322) and / or the post (32) of the first post group (321). The fiber optic sensor (52) is used to detect whether each post (32) is wrapped around the cable to be tested. After the abutting mechanism (4) slides a preset distance in a straight line, the other end of the cable to be tested comes into contact with the abutting mechanism (4). The displacement sensor (51) is used to collect the displacement distance of the abutting mechanism (4). The length of the cable to be tested is obtained by the data collected by the displacement sensor (51) and the fiber optic sensor (52). The contact mechanism (4) includes a slide (41) and a contact rod (42). The slide (41) is slidably connected to the slide frame (2), and the contact rod (42) is connected to the side of the slide (41). The contact rod (42) is used to contact the other end of the cable to be tested. The slide (2) includes a support base (21) and a slide rod (22). Two sets of support bases (21) are fixed at both ends of the base (1) along its length. Two slide rods (22) are connected between the two sets of support bases (21) in a parallel manner. The slide (41) is slidably connected to the two slide rods (22).

2. The cable length measuring device according to claim 1, characterized in that, The wire post (32) is cylindrical or semi-cylindrical, and the cylindrical surface of the wire post (32) is smoothly arranged. The cable to be tested is connected to the arc surface of the wire post (32).

3. The cable length measuring device according to claim 2, characterized in that, The first group of wire posts (321) and the second group of wire posts (322) have the same number of wire posts (32), and the first group of wire posts (321) has multiple wire posts (32).

4. The cable length measuring device according to claim 1, characterized in that, The base (1) is provided with a transmission hole (11), which is located outside the post (32). The fiber optic sensor (52) is installed on the lower surface of the base (1). The fiber optic sensor (52) detects whether the post (32) is wrapped with the cable to be tested through the transmission hole (11).

5. The cable length measuring device according to claim 1, characterized in that, The abutment rod (42) consists of multiple rods arranged side by side.

6. The cable length measuring device according to claim 1, characterized in that, The displacement sensor (51) is located on the base (1) on one side of one of the support seats (21). The side of the slide (41) is provided with a position detection plate (413), which is used to reflect the signal emitted by the displacement sensor (51).

7. The cable length measuring device according to claim 6, characterized in that, The communication mode of the sensor (51) is RS485 open protocol.

8. The cable length measuring device according to any one of claims 1-7, characterized in that, It also includes a constant force resetter (7), which is connected to the slide (2). The elastic connector (71) of the constant force resetter (7) is connected to the abutment mechanism (4). The constant force resetter (7) is used to reset the abutment mechanism (4).

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