Adjustable digital bridge clamp for cable positioning detection

Abstract

The utility model discloses an adjustable digital bridge clamp for cable positioning detection, which comprises a bottom plate, the top of the bottom plate is provided with a movable chute, and the left end of the bottom plate is provided with a distance adjusting turntable. When the adjustable digital bridge clamp for cable positioning detection is used, the end part of a conductor is inserted into a threading groove and a fixed pressing groove, and then the end part of the conductor is clamped and fixed through the cooperation of a conductive pile, a fixed pressing ball, the fixed pressing groove and a fastening groove, so that the clamping stability is improved, the end part of the conductor is prevented from slipping, and the service life of the conductor is prolonged. According to the cable detection device, the detection accuracy is improved, the cable detection device can adapt to cables of different sizes for use, the application range is widened, the end of the conductor is clamped in the shell, the shell is used for protecting the clamping power-on position, therefore, workers can be prevented from mistakenly touching the power-on position at the joint of the end of the conductor, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable detection, in particular to a digital bridge fixture for adjustable cable positioning detection. Background Art

[0002] Conductors, as the main component of cables, carry current. The DC resistance of conductors is a key parameter reflecting the electrical performance of wire and cable products and a necessary indicator for testing the basic data of all wires and cables. Therefore, DC resistance testing of conductors is necessary during the cable manufacturing process. Instruments for measuring the DC resistance of cables generally use digital bridges, which clamp the conductors at both ends with two clamps. However, existing clamps are mostly exposed, posing safety risks. Furthermore, the clamps cannot accommodate conductors of varying sizes, resulting in poor fixing. This can cause slippage during testing, leading to measurement errors and inconvenience. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the utility model provides an adjustable digital bridge clamp for cable positioning detection, which has a reasonable structure, flexibility, safety and easy operation, and solves the problem of poor performance of existing digital bridge clamps.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a digital bridge fixture for adjustable cable positioning detection, comprising a base plate, a movable slide groove is provided on the top of the base plate, a distance adjustment dial is installed on the left end of the base plate, an adjusting screw is provided inside the movable slide groove, the left end of the adjusting screw passes through the card seat and extends to the left side of the card seat, the position where the adjusting screw contacts the card seat is rotatably connected through a bearing, the distance adjustment dial is installed on the left end of the adjusting screw, a movable slide is slidably engaged inside the movable slide groove, the adjusting screw passes through the movable slide, the front side of the movable slide is inlaid with steel balls, and a clamping device is provided on the top of the movable slide.

[0005] Preferably, the clamping device includes a shell, a threading hole, a positioning slot, a support spring, a clamping base, a conductive pile, a connecting wire, a pressing rod, a rotating pressing handle, a fixed pressure ball, a threading slot, a fixed pressure slot and a fastening groove. The shell is installed on the top of the movable slide, the threading hole is opened on the right side wall of the shell, the positioning slot is opened on the bottom inner wall of the shell, the support spring is installed on the bottom inner wall of the positioning slot, the clamping base is movably connected to the inside of the positioning slot, the top of the support spring is installed on the bottom of the clamping base, the conductive pile is installed at the bottom of the positioning slot and is located in the middle, and the connecting The connecting wire is installed with the bottom end of the conductive pile, and the end of the connecting wire away from the conductive pile passes through the shell backward and extends to the outside of the shell. The bottom of the clamping base is provided with an opening adapted to the conductive pile, and the top of the clamping base is provided with a wire threading groove laterally, and a fixed pressing groove is provided at the top and in the middle of the clamping base. A rotating pressing handle is rotatably installed on the top of the shell through a bearing, and a pressing rod is connected to the bottom of the rotating pressing handle by a threaded connection, and the bottom end of the pressing rod passes through the shell and extends to the inside of the shell, and the fixed pressure ball is installed with the bottom end of the pressing rod, and the fastening groove is provided at the bottom of the fixed pressure ball.

[0006] Preferably, the cross-sectional shape of the movable chute is convex, and the front inner wall and the rear inner wall of the movable chute are provided with arc-shaped grooves adapted to the steel balls.

[0007] Preferably, the housing and the rotating and pressing handle are both made of transparent plastic.

[0008] Preferably, a threaded groove is provided on the outer wall of the pressing rod, and a corresponding threaded ring is provided at the position where the rotating pressing handle contacts the pressing rod. A vertical card groove is provided on the outer wall of the pressing rod, and a corresponding vertical card block is provided at the position where the outer shell contacts the pressing rod.

[0009] Preferably, the curvature of the fixed pressure ball matches that of the fixed pressure groove, the top of the conductive pile is spherical, and the curvature of the fastening groove is the same as that of the spherical top of the conductive pile.

[0010] Compared with the existing technology, the utility model provides an adjustable digital bridge fixture for cable positioning detection, which has the following beneficial effects:

[0011] 1. When using this adjustable digital bridge fixture for cable positioning detection, the conductor end is inserted into the wire groove and the fixed pressure groove, and then the conductor end is clamped and fixed through the cooperation of the conductive pile, fixed pressure ball, fixed pressure groove and fastening groove, thereby improving the clamping stability, preventing the conductor end from slipping, and improving the accuracy of detection. It can also be adapted to cables of different sizes for use, increasing the scope of application.

[0012] 2. The adjustable digital bridge fixture for cable positioning detection has the conductor end clamped inside the housing, and the housing protects the clamped energized position, thereby preventing workers from accidentally touching the energized position of the conductor end connection, thereby improving safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of an adjustable digital bridge fixture for cable positioning detection according to the present invention;

[0014] Figure 2 This is a schematic structural diagram of a clamping device of a digital bridge clamp for adjustable cable positioning detection according to the present invention;

[0015] Figure 3 The figure is a schematic diagram of the internal cross-sectional structure of an adjustable digital bridge fixture for cable positioning detection described in the present invention.

[0016] The symbols in the accompanying drawings are described as follows:

[0017] 1. Base plate; 2. Clamping seat; 3. Movable slide; 4. Distance adjustment dial; 5. Control screw; 6. Movable slide; 7. Steel ball; 8. Clamping device; 81. Housing; 82. Threading hole; 83. Positioning slot; 84. Support spring; 85. Clamping base; 86. Conductive pile; 87. Connecting wire; 88. Pressing rod; 89. Rotating pressing handle; 90. Fixed pressure ball; 91. Threading slot; 92. Fixed pressure slot; 93. Fastening groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3The utility model provides an adjustable cable positioning detection digital bridge fixture, including a base plate 1, a movable slide 3 is opened on the top of the base plate 1, a distance adjustment dial 4 is installed at the left end of the base plate 1, an adjusting screw 5 is arranged inside the movable slide 3, the left end of the adjusting screw 5 passes through the card seat 2 and extends to the left side of the card seat 2, the position where the adjusting screw 5 contacts the card seat 2 is rotatably connected through a bearing, the distance adjustment dial 4 is installed with the left end of the adjusting screw 5, the interior of the movable slide 3 is slidingly connected with a movable slide 6, the adjusting screw 5 passes through the movable slide 6, the front side of the movable slide 6 is inlaid with steel balls 7, and the top of the movable slide 6 is provided with a clamping device 8, and a scale is engraved on the top of the base plate 1. The scale can be used to adjust the distance between the left and right clamping devices 8 according to the length of the detection cable.

[0020] Furthermore, the clamping device 8 includes a shell 81, a threading hole 82, a positioning slot 83, a support spring 84, a clamping base 85, a conductive pile 86, a connecting wire 87, a pressing rod 88, a rotating pressing handle 89, a fixed pressure ball 90, a threading groove 91, a fixed pressure groove 92 and a fastening groove 93. The shell 81 is installed on the top of the movable slide 6, the threading hole 82 is opened on the right side wall of the shell 81, the positioning slot 83 is opened on the bottom inner wall of the shell 81, the support spring 84 is installed on the bottom inner wall of the positioning slot 83, the clamping base 85 is movably connected to the inside of the positioning slot 83, the top of the support spring 84 is installed on the bottom of the clamping base 85, the conductive pile 86 is installed at the middle position of the bottom of the positioning slot 83, and the connecting wire 87 is installed on the bottom end of the conductive pile 86.

[0021] Furthermore, one end of the connecting wire 87 away from the conductive post 86 passes through the shell 81 backward and extends to the outside of the shell 81. The bottom of the clamping base 85 is provided with an opening that is compatible with the conductive post 86. The top of the clamping base 85 is provided with a wire threading groove 91 laterally. A fixed pressing groove 92 is provided at the top and in the middle of the clamping base 85. A rotating pressing handle 89 is rotatably installed on the top of the shell 81 through a bearing. The bottom of the rotating pressing handle 89 is connected to a pressing rod 88 through a threaded connection. The bottom end of the pressing rod 88 passes through the shell 81 and extends to the inside of the shell 81.

[0022] Furthermore, the fixed pressure ball 90 is installed at the bottom end of the pressing rod 88 , and the fastening groove 93 is opened at the bottom of the fixed pressure ball 90 .

[0023] Furthermore, the cross-sectional shape of the movable chute 3 is convex, and the front inner wall and the rear inner wall of the movable chute 3 are provided with arc-shaped grooves adapted to the steel balls 7. The movable slide 6 is stuck inside the movable chute 3 with the support of the steel balls 7, and the steel balls 7 reduce the resistance between the movable slide 6 and the movable chute 3 when it moves.

[0024] Furthermore, the housing 81 and the rotating and pressing handle 89 are both made of transparent plastic. The housing 81 is made of plastic to facilitate observation of the cable ends inside, thereby facilitating clamping work, and the rotating and pressing handle 89 is made of plastic to prevent conductivity.

[0025] Furthermore, a threaded groove is provided on the outer wall of the pressing rod 88, and a corresponding threaded ring is provided at the position where the pressing handle 89 contacts the pressing rod 88. A vertical card slot is provided on the outer wall of the pressing rod 88, and a corresponding vertical card block is provided at the position where the outer shell 81 contacts the pressing rod 88. When the pressing handle 89 is rotated, the pressing handle 89 drives the pressing rod 88 to move downward through the thread to perform clamping work under the restriction of the vertical card slot.

[0026] Furthermore, the curvature of the fixed pressure ball 90 is adapted to the curvature of the fixed pressure groove 92, the top of the conductive pile 86 is spherical, and the curvature of the fastening groove 93 is the same as the curvature of the spherical top of the conductive pile 86. When clamping, the fixed pressure ball 90 is used to bend the cable end to fit the inner wall of the fixed pressure groove 92. At the same time, the conductive pile 86 bends the cable end downward and upward to press the cable into the fastening groove 93, thereby forming a "W"-shaped clamping shape, which improves the stability of the clamping.

[0027] When in use, connect the connecting wire 87 to the digital bridge, drive the regulating screw 5 to rotate by turning the distance adjustment dial 4, drive the movable slide 6 to move along the movable slide groove 3 by the cooperation of the thread on the outer side of the regulating screw 5 and the thread groove inside the movable slide 6, and adjust the distance between the left and right clamping devices 8 according to the length of the detection cable as needed. After the adjustment is completed, insert the end of the conductor into the inside of the threading hole 82, and the end of the conductor extends into the threading groove 91 along the threading hole 82. Control the end of the conductor to pass through the fixed pressure groove 92 and extend to the inside of the threading groove 91 on the left side, and then rotate the pressing handle 89. The pressing handle 89 drives the pressing rod 88 downward through the thread, and the pressing rod 88 drives the fixed pressure ball 90 to move downward. The pressure ball 90 presses the end of the conductor downward, and at the same time presses the clamping base 85 downward through the conductor. After the clamping base 85 compresses the support spring 84 and moves downward, the conductive post 86 extends into the interior of the fixed pressure groove 92. Finally, the fixed pressure ball 90 moves into the interior of the fixed pressure groove 92 to press the end of the conductor. At the same time, the conductive post 86 extends into the interior of the fixed pressure groove 92 and presses the internal conductor into the fastening groove 93, thereby fixing the end of the conductor. Then, the right end of the conductor is fixed to the inside of the clamping device 8 on the right in the same operating manner. Finally, the DC resistance of the cable is detected by the digital bridge. During the power-on detection process, the wiring fixing position is inside the shell 81, thereby preventing workers from accidentally touching it and causing danger.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital bridge fixture for adjustable cable positioning detection, comprising a base plate (1), characterized in that: A movable slide (3) is provided on the top of the base plate (1), a distance adjustment dial (4) is installed on the left end of the base plate (1), a regulating screw (5) is provided inside the movable slide (3), the left end of the regulating screw (5) passes through the card seat (2) and extends to the left side of the card seat (2), the position where the regulating screw (5) contacts the card seat (2) is rotatably connected through a bearing, the distance adjustment dial (4) is installed on the left end of the regulating screw (5), the inside of the movable slide (3) is slidably connected with a movable slide (6), the regulating screw (5) passes through the movable slide (6), the front side of the movable slide (6) is inlaid with a steel ball (7), and the top of the movable slide (6) is provided with a clamping device (8).

2. The adjustable digital bridge fixture for cable positioning detection according to claim 1, characterized in that: The clamping device (8) comprises a housing (81), a threading hole (82), a positioning slot (83), a support spring (84), a clamping base (85), a conductive pile (86), a connecting wire (87), a pressing rod (88), a rotating pressing handle (89), a fixed pressure ball (90), a threading slot (91), a fixed pressure slot (92) and a fastening groove (93). The housing (81) is mounted on the top of the movable slide (6). The threading hole (82) is provided on the right side of the housing (81). The side wall, the positioning slot (83) is opened on the bottom inner wall of the housing (81), the support spring (84) is installed with the bottom inner wall of the positioning slot (83), the clamping base (85) is movably connected to the inside of the positioning slot (83), the top of the support spring (84) is installed with the bottom of the clamping base (85), the conductive pile (86) is installed at a position in the middle of the bottom of the positioning slot (83), and the connecting wire (87) is installed with the bottom end of the conductive pile (86).

3. The adjustable digital bridge fixture for cable positioning detection according to claim 2, characterized in that: One end of the connecting wire (87) away from the conductive pile (86) passes through the housing (81) backward and extends to the outside of the housing (81). The bottom of the clamping base (85) is provided with an opening adapted to the conductive pile (86). The top of the clamping base (85) is provided with a wire threading groove (91) in the horizontal direction. A fixed pressing groove (92) is provided at the top and in the middle of the clamping base (85).

4. The adjustable digital bridge fixture for cable positioning detection according to claim 3, characterized in that: A rotating pressing handle (89) is rotatably mounted on the top of the housing (81) via a bearing, and a pressing rod (88) is connected to the bottom of the rotating pressing handle (89) via a thread, and the bottom end of the pressing rod (88) passes through the housing (81) and extends into the interior of the housing (81).

5. The adjustable digital bridge fixture for cable positioning detection according to claim 4, characterized in that: The fixed pressure ball (90) is installed at the bottom end of the pressing rod (88), and the fastening groove (93) is opened at the bottom of the fixed pressure ball (90).

6. The adjustable digital bridge fixture for cable positioning detection according to claim 1, characterized in that: The cross-sectional shape of the movable chute (3) is convex, and the front inner wall and the rear inner wall of the movable chute (3) are provided with arc-shaped grooves adapted to the steel balls (7).

7. The adjustable digital bridge fixture for cable positioning detection according to claim 2, characterized in that: The housing (81) and the rotating and pressing handle (89) are both made of transparent plastic.

8. The adjustable digital bridge fixture for cable positioning detection according to claim 2, characterized in that: The outer wall of the pressing rod (88) is provided with a threaded groove, and the position where the rotating pressing handle (89) contacts the pressing rod (88) is provided with a matching threaded ring. The outer wall of the pressing rod (88) is provided with a vertical card groove, and the position where the housing (81) contacts the pressing rod (88) is provided with a matching vertical card block.

9. The adjustable digital bridge fixture for cable positioning detection according to claim 2, characterized in that: The fixed pressure ball (90) is adapted to the curvature of the fixed pressure groove (92), the top of the conductive pile (86) is spherical, and the curvature of the fastening groove (93) is the same as the curvature of the spherical top of the conductive pile (86).

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