Portable cable diameter measuring tool

Abstract

The invention discloses a portable cable diameter measuring tool, and relates to the field of diameter measuring tools, the portable cable diameter measuring tool comprises a digital display vernier caliper, a fixing seat, a connecting clamp, a driving unit and a handheld rod piece, the digital display vernier caliper is provided with a sliding piece, a main ruler, a movable clamping foot and a fixed clamping foot, and the fixed clamping foot is in contact with one side of a cable; a second bevel gear is driven by a driving part to rotate, the second bevel gear is meshed with a first bevel gear to drive a threaded rod to rotate, in the rotating process of the threaded rod, an inner threaded block, a sliding piece and a movable clamping foot synchronously move towards a cable, and when the movable clamping foot makes contact with the cable, the distance between the movable clamping foot and a fixed clamping foot is the diameter of the cable. The digital display vernier caliper is provided with a digital display screen, an electric power worker can directly read a measurement result and measure the diameter of the cable, and the tool is simple in structure, low in maintenance cost, capable of standing on the ground to carry out live line measurement on the diameter of the aerial cable and high in practicability.

Description

Technical Field

[0001] The invention belongs to the field of diameter measuring tools, and in particular relates to a portable cable diameter measuring tool. Background Art

[0002] Power emergency repair construction requires a lot of preliminary preparation work, among which on-site investigation is one of the preliminary preparation work for power emergency repair construction.

[0003] On-site investigation is one of the preliminary preparations for power emergency repair construction. During the on-site investigation, it is necessary to clarify the line conductor model, specifications, etc. Its purpose is to conduct a detailed investigation and understanding of the on-site conditions involved in the emergency repair construction, and provide accurate data and basis for the emergency repair construction to ensure the safety and effectiveness of the emergency repair construction.

[0004] For example, Chinese patent CN207850248U discloses a high-altitude wire diameter measuring device, including an insulating rod; a vernier caliper, the vernier caliper including a main scale, a vernier slide slidably arranged on the main scale and an outer diameter measuring structure, the main scale is fixed to the end of the insulating rod, the outer diameter measuring structure includes a fixed outer measuring claw arranged on the main scale and a dynamic outer measuring claw arranged on the vernier slide, the side of the fixed outer measuring claw facing the dynamic outer measuring claw is a fixed reference surface, the side of the dynamic outer measuring claw facing the fixed outer measuring claw includes a dynamic reference surface and a guide inclined surface, the dynamic reference surface is located between the guide inclined surface and the main scale, the dynamic reference surface is parallel to the fixed reference surface, and the spacing between the guide inclined surface and the fixed reference surface gradually increases from the root of the fixed outer measuring claw to the end of the fixed outer measuring claw; and a post-measurement vernier locking device.

[0005] However, the post-measurement cursor locking device designed in the device has a relatively complex structure. The complex design not only means higher manufacturing costs, but also increases maintenance costs. In addition, the complex structure means more parts and a higher failure rate, and the practicality is low.

[0006] Therefore, we propose a portable cable diameter measuring tool to solve the above problems. Summary of the invention

[0007] Aiming at the problem that the post-measurement cursor locking device designed in the device has a complex structure, the present invention provides a portable cable diameter measuring tool.

[0008] The solution adopted by the present invention to solve the technical problem is: a portable cable diameter measuring tool, including a digital display vernier caliper, a fixing seat, a connecting fixture, a driving unit and a handheld rod, the digital display vernier caliper has a sliding part, a main scale, a movable clamping foot and a fixed clamping foot, the driving unit includes a shell, a threaded rod, a driving component and a power shell, the bottom of the shell is open, the threaded rod is rotatably installed on the shell, the threaded rod is threadedly connected with an internal thread block, the internal thread block is adapted to the inner cavity of the shell, so that the internal thread block can slide along the inner cavity of the shell; The power shell is integrally connected to the right side of the housing, and a bevel gear 1 and a bevel gear 2 are arranged inside the power shell. The bevel gear 1 is mounted on the optical axis at the right end of the threaded rod and meshes with the bevel gear 2. The driving component is installed on the power shell and connected to the bevel gear 2 to drive the bevel gear 2 to rotate. The fixing seat is fixedly installed on the left side of the power housing, and a slot is provided inside the fixing seat, and the right end of the main ruler is inserted into the slot; The outer side of the connecting fixture set sliding member is detachably connected to the sliding member, and the top of the connecting fixture is fixedly connected to the internal thread block; The hand-held rod is fixedly installed at the bottom of the power shell.

[0009] Preferably, a threaded hole is provided on the front side of the fixing seat, a locking bolt is threadedly connected to the threaded hole, and the inner end of the locking bolt is in contact with the main scale.

[0010] Preferably, the handheld rod is a telescopic rod, the top of the telescopic rod is fixedly connected with a screw, the bottom of the power shell is fixedly connected with a nut, and the screw and the nut are threadedly connected.

[0011] Preferably, the hand-held rod is an insulating sleeve with a hollow interior.

[0012] Preferably, the driving component is a driving rod, the top end of which is connected to the second bevel gear, and the lower end of which passes through the bearing and the insulating sleeve in sequence and is fixedly installed with a rotating disk, and the bearing is installed at the bottom of the power shell.

[0013] Preferably, the driving component is a driving motor installed at the bottom of the power shell, and the driving motor is connected to the second bevel gear.

[0014] Preferably, it also includes a touch sensor, a protective shell and a wireless switch. The protective shell is fixedly installed between the shell, the power shell and the fixed seat, and a controller and a battery are arranged inside the protective shell. The touch sensor is fixedly installed on the movable clamping foot and can contact the outer surface of the cable. The wireless switch is installed on the handle of the telescopic rod. The battery is electrically connected to the touch sensor, the controller and the drive motor respectively. The touch sensor is connected to the controller, the controller is connected to the drive motor, and the wireless switch is connected to the drive motor through the controller.

[0015] Preferably, a charging port for charging the battery is provided on the front side of the protective shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention makes the fixed clamping foot contact with one side of the cable, drives the bevel gear 2 to rotate through the driving component, and the bevel gear 2 meshes with the transmission bevel gear 1 to rotate the threaded rod. During the rotation of the threaded rod, the internal thread block, the sliding part and the movable clamping foot are synchronously moved toward the cable. When the movable clamping foot contacts the cable, the distance between the movable clamping foot and the fixed clamping foot is the diameter of the cable. The digital display vernier caliper has a digital display screen, and the electrician can directly read the measurement result and measure the diameter of the cable. The tool has a simple structure and low maintenance cost. It can stand on the ground and perform live measurement of the diameter of the high-altitude cable, and is highly practical.

[0017] 2. The present invention fixes the main scale by a fixing seat and a locking bolt to ensure the stability of the digital display vernier caliper during use. The connecting fixture is connected to the sliding member, which, on the one hand, assists in pulling the digital display vernier caliper, and on the other hand, enables the sliding member to move synchronously with the internal thread block under the connecting action of the connecting fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a front cross-sectional structure of a first embodiment of the present invention; Figure 2 This is a schematic diagram of a front cross-sectional structure of a second embodiment of the present invention; Figure 3 It is a front view structural schematic diagram of the second embodiment of the present invention.

[0019] In the figure: 1 housing, 21 threaded rod, 22 internal thread block, 23 bevel gear 1, 24 bevel gear 2, 3 connecting fixture, 41 driving motor, 42 driving rod, 43 rotating disk, 51 nut, 52 screw, 61 insulating sleeve, 62 telescopic rod, 7 digital display vernier caliper, 71 sliding part, 72 main scale, 73 movable foot, 74 fixed foot, 81 fixing seat, 82 locking bolt, 9 protective shell, 10 battery, 11 controller, 12 touch sensor, 13 power shell, 14 wireless switch. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-3 , the present invention provides a technical solution of a portable cable diameter measuring tool: Embodiment 1: according to Figure 1 As shown, it includes a digital display vernier caliper 7, a fixed seat 81, a connecting fixture 3, a driving unit and a hand-held rod. The digital display vernier caliper 7 has a sliding part 71, a main scale 72, a movable clamping foot 73 and a fixed clamping foot 74. The digital display vernier caliper 7 is an existing product, and the specific structural connection relationship is not repeated in this embodiment.

[0022] The driving unit includes a shell 1, a threaded rod 21, a driving component and a power shell 13. The bottom of the shell 1 is open. Two bearings are respectively mounted on both ends of the threaded rod 21. The two bearings are respectively mounted on the left and right walls of the shell 1. An internal thread block 22 is threadedly connected to the threaded rod 21. The internal thread block 22 is adapted to the inner cavity of the shell 1. The internal thread block 22 slides along the inner cavity of the shell 1 by rotating the threaded rod 21.

[0023] The power shell 13 is integrally connected to the right side surface of the housing 1 , and a bevel gear 1 23 and a bevel gear 24 are arranged inside the power shell 13 . The bevel gear 1 23 is sleeved on the optical axis at the right end of the threaded rod 21 and meshes with the bevel gear 2 24 .

[0024] The fixing seat 81 is fixedly installed on the left side of the power housing 13 , and a slot is provided inside the fixing seat 81 . The right end of the main scale 72 is inserted into the slot to support the digital display vernier caliper 7 .

[0025] The connecting fixture 3 is mounted on the outer side of the sliding member 71 and is detachably connected to the sliding member 71. The top of the connecting fixture 3 is fixedly connected to the internal thread block 22. By connecting the connecting fixture 3 and the sliding member 71, on the one hand, the digital display vernier caliper 7 is assisted in pulling. On the other hand, under the connecting action of the connecting fixture 3, the sliding member can move synchronously with the internal thread block 22.

[0026] The hand-held rod is an insulating sleeve 61 with a hollow interior. The insulating sleeve 61 is fixedly mounted on the bottom of the power shell 13. The driving component is a driving rod 42. The top of the driving rod 42 is connected to the bevel gear 24. The lower end thereof passes through the bearing and the insulating sleeve 61 in sequence and is fixedly mounted with a rotating disk 43. The bearing is mounted on the bottom of the power shell 13. The driving rod 42 and the bevel gear 24 are driven to rotate by rotating the rotating disk 43. The bevel gear 24 engages with the transmission bevel gear 1 23 to rotate the threaded rod 21. During the rotation of the threaded rod 21, the internal thread block 22, the sliding member 71 and the movable foot 73 are synchronously moved toward the cable. When the movable foot 73 contacts the cable, the distance between the movable foot 73 and the fixed foot 74 is the diameter of the cable. The digital display vernier caliper 7 has a digital display screen. Electric workers can directly read the measurement results and measure the diameter of the cable. The device has a simple structure and low maintenance cost. It can stand on the ground to perform live measurement of the diameter of high-altitude cables, and is highly practical.

[0027] When used specifically, the present invention is a portable cable diameter measuring tool. By holding the insulating sleeve 61 and operating the tool, the fixed clamping foot 74 is in contact with one side of the cable. Then, the rotating disk 43 is rotated in the forward direction to drive the driving rod 42 and the bevel gear 24 to rotate. The bevel gear 24 engages with the transmission bevel gear 1 23 to rotate the threaded rod 21. During the rotation of the threaded rod 21, the internal thread block 22, the sliding member 71 and the movable clamping foot 73 are synchronously moved toward the cable. When the movable clamping foot 73 contacts the cable, the distance between the movable clamping foot 73 and the fixed clamping foot 74 is the diameter of the cable. Then, the movable clamping foot 73 and the fixed clamping foot 74 are separated from the cable, and the tool is removed. Finally, the electrician reads the measurement result to measure the diameter of the cable.

[0028] Embodiment 2: On the basis of the first embodiment, Figure 3 As shown, a threaded hole is opened on the front side of the fixing seat 81, and a locking bolt 82 is threadedly connected to the threaded hole. The inner end of the locking bolt 82 contacts the main scale 72. The main scale 72 is fixed by the fixing seat 81 and the locking bolt 82 to ensure the stability of the digital display vernier caliper 7 during use.

[0029] Embodiment three: Based on the first embodiment, the differences are as follows: Figure 2 and Figure 3 As shown, the handheld rod is a telescopic rod 62, which can be extended and retracted to facilitate the electrician to carry. The top of the telescopic rod 62 is fixedly connected with a screw 52, ​​and the bottom of the power shell 13 is fixedly connected with a nut 51. The screw 52 is threadedly connected to the nut 51, so that the telescopic rod 62 can be disassembled for separate carrying.

[0030] The driving component is a driving motor 41 installed at the bottom of the power shell 13. The driving motor 41 is connected to the bevel gear 24. The bevel gear 24 is driven to rotate by the driving motor 41. The bevel gear 24 meshes with the transmission bevel gear 1 23 to rotate the threaded rod 21.

[0031] It also includes a touch sensor 12, a protective shell 9 and a wireless switch 14. The protective shell 9 is fixedly installed between the shell 1, the power shell 13 and the fixed seat 81, and a controller 11 and a battery 10 are arranged inside the protective shell 9. The touch sensor 12 is fixedly installed on the movable clamping foot 73 and can contact the outer surface of the cable. The wireless switch 14 is installed on the handle of the telescopic rod 62. The battery 10 is electrically connected to the touch sensor 12, the controller 11 and the drive motor 41 respectively to supply power to the touch sensor 12, the controller 11 and the drive motor 41.

[0032] The touch sensor 12 is connected to the controller 11. The touch sensor 12 detects whether the active clamping pin 73 is in contact with the cable. When the active clamping pin 73 is in contact with the cable, the touch sensor 12 sends a signal to the controller 11, indicating that the active clamping pin 73 has contacted the cable. The controller 11 is connected to the drive motor 41. The function of the controller 11 is to immediately stop the operation of the drive motor 41 after receiving the signal from the touch sensor 12. The wireless switch 14 is connected to the drive motor 41 through the controller 11. The wireless switch 14 sends a signal to the controller 11, informing the controller 11 to start driving the motor 41, thereby starting the drive motor 41 to work.

[0033] A charging port for charging the battery 10 is provided on the front side of the protective case 9 .

Claims

1. A portable cable diameter measuring tool, comprising a digital display vernier caliper, a fixing seat, a connecting fixture, a driving unit and a handheld rod, wherein the digital display vernier caliper has a sliding member, a main scale, a movable foot and a fixed foot, and is characterized in that: The driving unit comprises a housing, a threaded rod, a driving component and a power housing. The bottom of the housing is open. The threaded rod is rotatably mounted on the housing. An internal thread block is threadedly connected to the threaded rod. The internal thread block is adapted to the inner cavity of the housing so that the internal thread block can slide along the inner cavity of the housing. The power shell is integrally connected to the right side of the housing, and a bevel gear 1 and a bevel gear 2 are arranged inside the power shell. The bevel gear 1 is mounted on the optical axis at the right end of the threaded rod and meshes with the bevel gear 2. The driving component is installed on the power shell and connected to the bevel gear 2 to drive the bevel gear 2 to rotate. The fixing seat is fixedly installed on the left side of the power housing, and a slot is provided inside the fixing seat, and the right end of the main ruler is inserted into the slot; The outer side of the connecting fixture set sliding member is detachably connected to the sliding member, and the top of the connecting fixture is fixedly connected to the internal thread block; The hand-held rod is fixedly installed at the bottom of the power shell.

2. The portable cable diameter measuring tool according to claim 1, characterized in that: A threaded hole is provided on the front side of the fixing seat, a locking bolt is threadedly connected to the threaded hole, and the inner end of the locking bolt is in contact with the main ruler.

3. The portable cable diameter measuring tool according to claim 1, characterized in that: The hand-held rod is a telescopic rod, the top of the telescopic rod is fixedly connected with a screw, the bottom of the power shell is fixedly connected with a nut, and the screw and the nut are threadedly connected.

4. The portable cable diameter measuring tool according to claim 1, characterized in that: The hand-held rod is an insulating sleeve with a hollow interior.

5. The portable cable diameter measuring tool according to claim 4, characterized in that: The driving component is a driving rod, the top end of which is connected to the second bevel gear, and the lower end of which passes through the bearing and the insulating sleeve in sequence and is fixedly installed with a rotating disk, and the bearing is installed at the bottom of the power shell.

6. The portable cable diameter measuring tool according to claim 3, characterized in that: The driving component is a driving motor installed at the bottom of the power shell, and the driving motor is connected to the second bevel gear.

7. The portable cable diameter measuring tool according to claim 6, characterized in that: It also includes a touch sensor, a protective shell and a wireless switch. The protective shell is fixedly installed between the shell, the power shell and the fixed seat, and a controller and a battery are arranged inside the protective shell. The touch sensor is fixedly installed on the movable clamping foot and can contact the outer surface of the cable. The wireless switch is installed on the handle of the telescopic rod. The battery is electrically connected to the touch sensor, the controller and the drive motor respectively. The touch sensor is connected to the controller, the controller is connected to the drive motor, and the wireless switch is connected to the drive motor through the controller.

8. The portable cable diameter measuring tool according to claim 7, characterized in that: The front side of the protective shell is provided with a charging port for charging the battery.

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