Coaxial cable test fixture

Abstract

The utility model discloses a coaxial cable test clamp, which relates to the technical field of cable test auxiliary equipment and comprises a support plate, a mounting rack movably mounted on one side of the support plate, a pawl arranged on one side of the mounting rack and movably mounted on one side of the mounting rack through a second mounting bolt, a winding roller movably mounted in the mounting rack, and a pressing plate arranged in the winding roller. And the pressing plate is movably mounted in the winding roller through the two first mounting bolts. The mounting frame is arranged on one side of the supporting plate, the rotatable winding roller is arranged in the mounting frame, and one end of the coaxial cable can be clamped and tightened by matching with the ratchet wheel, the pawl, the slot and the pressing plate, so that a stable fixing function can be provided for one end of the coaxial cable, and the one end of the coaxial cable is effectively prevented from being separated during a test; and the mounting rack can rotate and be limited and fixed through a fixed wheel and a fixed shaft on one side, and can be connected with external torsion equipment in cooperation with the fixed shaft, so that a torsion test can be conveniently carried out on the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cable test auxiliary equipment, in particular to a coaxial cable test fixture. Background Art

[0002] Coaxial cable testing is an important part of ensuring the quality of coaxial cables, installation process and cabling system performance;

[0003] The tensile strength test of the coaxial cable is to apply a certain pulling force, stretch the cable horizontally, and measure the deformation of the cable during the stretching process. It can detect the performance of the cable when subjected to tension and whether the cable can withstand the expected load and stress. Therefore, when testing the tensile strength of the coaxial cable, it is necessary to use a clamp to clamp and fix the two ends of the coaxial cable under test. For example, the Chinese utility model patent disclosed by publication number CN217801272U: A 90° angle radio frequency coaxial cable test fixture, this application uses the cooperation of the first clamp mechanism, the second clamp mechanism and the adjustment clamp mechanism to achieve mechanized fixation of the 90° angle radio frequency coaxial cable, and cooperate with the test The equipment replaces manual handheld testing and improves testing efficiency. However, in this application, the cable is first clamped by the pushing block and the second fixed block, and the L-shaped groove of the rotating plate is used to further bend and clamp one end of the coaxial cable. Although it can provide a certain clamping and fixing ability for one end of the coaxial cable, when the coaxial cable is subjected to a tensile test, if a certain tensile force is reached during the test, the coaxial cable has not broken, and the pushing block and the second fixed block in this application cannot provide a strong clamping ability for the cable, which makes it easy for one end of the cable to be pulled out from the pushing block and the second fixed block, thereby affecting the test effect. In addition, this application cannot realize the synchronous torsional test of the coaxial cable after fixing one end of the coaxial cable. Utility Model Content

[0004] The purpose of the utility model is to provide a coaxial cable test fixture, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A coaxial cable testing fixture includes a support plate, a mounting frame movably mounted on one side of the support plate, a pawl provided on one side of the mounting frame, the pawl movably mounted on one side of the mounting frame via a second mounting bolt, a winding roller movably mounted in the mounting frame, a pressure plate provided in the winding roller, and the pressure plate movably mounted in the winding roller via two first mounting bolts.

[0007] Preferably, a base plate is fixedly installed at the bottom of the support plate, and a plurality of reinforcing plates are fixedly connected between the support plate and the base plate. The base plate is arranged at the bottom of the support plate, and the reinforcing plate can be fixedly installed on an external workbench or translation mechanism through the base plate.

[0008] Preferably, two connecting plates are fixedly installed on one side of the support plate, and rotation grooves are respectively opened on opposite sides of the two connecting plates, and a fixing screw is inserted into one of the connecting plates.

[0009] Preferably, a limit block is fixedly installed at the upper position of one side of the mounting frame, a fixed wheel is fixedly installed on one side of the mounting frame relative to the support plate, a first screw groove is opened on the outer side of the fixed wheel, and a fixed shaft is fixedly installed at the center position of one side of the fixed wheel.

[0010] Preferably, the second mounting bolt is inserted into the through hole on one side of the pawl and the mounting frame, and the second mounting bolt located on the inner side of the mounting frame is threadedly connected to a nut, the second mounting bolt located between the nut and the mounting frame is sleeved with a first compression spring, and the limit block limits the pawl in one direction.

[0011] Preferably, a rotating handle is movably installed at one end of the winding roller, and a ratchet is fixedly installed at the other end of the winding roller, and the winding roller located between the rotating handle and the ratchet is rotatably installed in the through holes on both sides of the mounting frame, and the winding roller located in the mounting frame is provided with a slot, and the pressure plate is inserted and installed at the bottom of the slot, and second screw grooves are provided on both sides of the top of the pressure plate, and the lower end of the first mounting bolt passes through the through hole on the top of the winding roller and is threaded into the corresponding second screw groove, and the two first mounting bolts located above the winding roller are also inserted and connected with the pull rod, and the first mounting bolt located between the pressure plate and the bottom of the slot is also equipped with a second compression spring. With the help of the force of the pressure plate and the second compression spring, one end of the cable of different diameters can be fixed in the slot, and one end of the cable can be wound and fixed by the rotatable winding roller, which is convenient for later testing.

[0012] Preferably, the fixing wheel is inserted into the rotating groove on the opposite side of the two connecting plates, and the fixing shaft extends through the through hole in the support plate to the other side of the support plate and is clamped with a retaining spring. The mounting frame is rotatably mounted on one side of the support plate with the help of the fixing wheel and the fixing shaft to realize the cable torsion test, and is threadedly connected to the first screw groove by a fixing screw to limit the rotation of the mounting frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The coaxial cable test fixture described in the present invention has a mounting frame provided on one side of a support plate, and a rotatable winding roller is provided inside the mounting frame, which can clamp and tighten one end of the coaxial cable in conjunction with a ratchet and pawl as well as a slot and a pressure plate, thereby providing a stable fixing function for one end of the coaxial cable, effectively preventing one end of the coaxial cable from detaching during the test; the mounting frame can also realize the rotation and limited fixation of the mounting frame through a fixed wheel and a fixed shaft on one side, and can be connected to an external torsion device in conjunction with the fixed shaft, thereby facilitating torsion testing of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the mounting frame structure of the utility model;

[0018] Figure 4 This is a cross-sectional view of the mounting bracket of the present utility model;

[0019] Figure 5 This is a schematic diagram of the disassembled structure of the winding roller of the present invention.

[0020] In the figure: 1. Support plate; 2. Mounting frame; 3. Ratchet; 4. Winding roller; 5. Pressing plate; 6. First mounting bolt; 7. Bottom plate; 8. Reinforcing plate; 9. Connecting plate; 10. Rotating groove; 11. Fixing screw; 12. Fixing wheel; 13. First screw groove; 14. Fixing shaft; 15. Limiting block; 16. Second mounting bolt; 17. Nut; 18. First compression spring; 19. Rotating handle; 20. Slot; 21. Ratchet; 22. Second screw groove; 23. Second compression spring; 24. Pull rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 5 As shown, the utility model provides a coaxial cable test fixture, including a support plate 1, a mounting frame 2 is movably mounted on one side of the support plate 1, a pawl 3 is provided on one side of the mounting frame 2, the pawl 3 is movably mounted on one side of the mounting frame 2 through a second mounting bolt 16, a winding roller 4 is movably mounted in the mounting frame 2, a pressure plate 5 is provided in the winding roller 4, and the pressure plate 5 is movably mounted in the winding roller 4 through two first mounting bolts 6.

[0023] like Figure 2As shown, a bottom plate 7 is fixedly installed at the bottom of the support plate 1, and a plurality of reinforcing plates 8 are fixedly connected between the support plate 1 and the bottom plate 7. The bottom plate 7 is arranged at the bottom of the support plate 1, and the reinforcing plate 8 can be fixedly installed on an external workbench or translation mechanism through the bottom plate 7. Two connecting plates 9 are fixedly installed on one side of the support plate 1, and a rotation groove 10 is respectively opened on the opposite side of the two connecting plates 9, and a fixing screw 11 is inserted into one of the connecting plates 9;

[0024] like Figure 2-Figure 5 As shown, a limit block 15 is fixedly installed at the upper position of one side of the mounting frame 2, and a fixed wheel 12 is fixedly installed on the mounting frame 2 relative to one side of the support plate 1. A first screw groove 13 is opened on the outside of the fixed wheel 12, and a fixed shaft 14 is fixedly installed at the center position of one side of the fixed wheel 12. A second mounting bolt 16 is inserted into the through hole on the pawl 3 and one side of the mounting frame 2, and the second mounting bolt 16 located on the inner side of the mounting frame 2 is threadedly connected with a nut 17. The second mounting bolt 16 located between the nut 17 and the mounting frame 2 is sleeved with a first compression spring 18, and the limit block 15 limits the pawl 3 in one direction. A rotating handle 19 is movably installed at one end of the winding roller 4, and a ratchet 21 is fixedly installed at the other end of the winding roller 4. The winding roller 4 is located between the rotating handle 19 and the ratchet 21. The roller 4 is rotatably mounted in the through holes on both sides of the mounting frame 2. A slot 20 is provided in the winding roller 4 located in the mounting frame 2. The pressure plate 5 is inserted and installed in the bottom of the slot 20. Second screw grooves 22 are provided on both sides of the top of the pressure plate 5. The lower end of the first mounting bolt 6 passes through the through hole on the top of the winding roller 4 and is threadedly connected to the corresponding second screw groove 22. The two first mounting bolts 6 located above the winding roller 4 are also inserted and connected with a pull rod 24. The first mounting bolt 6 located between the pressure plate 5 and the bottom of the slot 20 is also equipped with a second compression spring 23. With the help of the force of the pressure plate 5 and the second compression spring 23, one end of the cable with different diameters can be fixed in the slot 20, and one end of the cable can be wound and fixed by the rotatable winding roller 4, which is convenient for later testing.

[0025] like Figure 1 As shown, the fixing wheel 12 is inserted into the rotating groove 10 on the opposite side of the two connecting plates 9, and the fixing shaft 14 extends through the through hole in the support plate 1 to the other side of the support plate 1 and is clamped with a retaining spring. The mounting frame 2 is rotatably mounted on one side of the support plate 1 with the help of the fixing wheel 12 and the fixing shaft 14 to realize the cable torsion test, and is threadedly connected to the first screw groove 13 by the fixing screw 11 to limit the rotation of the mounting frame 2.

[0026] It should be noted that the present invention is a coaxial cable test fixture. Before use, the base plate 7 can be first fixed on an external workbench or a translation mechanism on the workbench. When performing a tensile test on the coaxial cable, the two first mounting bolts 6 can be lifted up by the pull rod 24. Then, the two first mounting bolts 6 drive the pressure plate 5 to move upward in the slot 20 and compress the second compression spring 23 toward the top of the slot 20. Subsequently, one end of the coaxial cable is inserted and installed between the bottom of the slot 20 and the pressure plate 5. Subsequently, the pull rod 24 is released, and the extension and rebound force of the two second compression springs 23 can be used to apply pressure to the pressure plate 5, so that the pressure plate 5 temporarily fixes one end of the coaxial cable in the slot 20. After that, the winding roller 4 is rotated by the turning handle 19, so that the winding roller 4 cooperates with the pressure plate 5 and the slot 20 to gradually wind one end of the cable around the outside of the winding roller 4. At the same time, the winding roller 4 drives the ratchet 21 to continuously rotate on the pawl 3, and the pawl 3 realizes unidirectional restriction of the ratchet 21 through the setting of the limit block 15, thereby preventing the winding roller 4 from loosening after winding one end of the coaxial cable. Subsequently, one end of the coaxial cable can be fixed in the slot 20 of the other winding roller 4 as described above, and then the coaxial cable can be subjected to a tensile test with the external tensile equipment. The greater the tensile force, the greater the force that tightens the two ends of the coaxial cable on the outside of the corresponding winding roller 4, which can provide a stable fixing ability for the coaxial cable tensile test.

[0027] When performing a torsion test on the coaxial cable, first fix the two ends of the coaxial cable to the outer sides of the corresponding winding roller 4 as described above, and unscrew the lower end of the fixing screw 11 from the first screw groove 13 on the outer side of the fixing wheel 12, so that the mounting frame 2 can rotate with the fixing wheel 12 and the fixing shaft 14 as the axis, and cooperate with the external torsion device to drive the fixing shaft 14, thereby driving the mounting frame 2 and the winding roller 4 to rotate, and the cable can be subjected to a torsion test. When removing one end of the coaxial cable, it is only necessary to push the pawl 3 to one side so that the pawl 3 pushes the second mounting bolt 16 to one side, and the second mounting bolt 16 compresses the first compression spring 18 to one side of the mounting frame 2 through the nut 17, thereby disengaging the other end of the pawl 3 from the ratchet 21, and the winding roller 4 can be rotated in the opposite direction, thereby loosening one end of the coaxial cable from the outside of the winding roller 4.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A coaxial cable test fixture, characterized by: The invention comprises a support plate (1), a mounting frame (2) is movably mounted on one side of the support plate (1), a pawl (3) is provided on one side of the mounting frame (2), the pawl (3) is movably mounted on one side of the mounting frame (2) via a second mounting bolt (16), a winding roller (4) is movably mounted in the mounting frame (2), a pressure plate (5) is provided in the winding roller (4), and the pressure plate (5) is movably mounted in the winding roller (4) via two first mounting bolts (6).

2. The coaxial cable test fixture according to claim 1, characterized in that: A bottom plate (7) is fixedly mounted on the bottom of the support plate (1), and a plurality of reinforcing plates (8) are fixedly connected between the support plate (1) and the bottom plate (7).

3. The coaxial cable test fixture according to claim 2, wherein: Two connecting plates (9) are fixedly mounted on one side of the support plate (1), and rotation grooves (10) are respectively provided on opposite sides of the two connecting plates (9), wherein a fixing screw (11) is inserted into one of the connecting plates (9).

4. The coaxial cable test fixture according to claim 3, characterized in that: A limit block (15) is fixedly installed at an upper position on one side of the mounting frame (2), and a fixed wheel (12) is fixedly installed on one side of the mounting frame (2) relative to the support plate (1). A first screw groove (13) is provided on the outer side of the fixed wheel (12), and a fixed shaft (14) is fixedly installed at a central position on one side of the fixed wheel (12).

5. The coaxial cable test fixture according to claim 4, characterized in that: The second mounting bolt (16) is inserted into a through hole on one side of the pawl (3) and the mounting frame (2), and the second mounting bolt (16) located on the inner side of the mounting frame (2) is threadedly connected to a nut (17), and the second mounting bolt (16) located between the nut (17) and the mounting frame (2) is sleeved with a first compression spring (18), and the limit block (15) performs one-way limiting on the pawl (3).

6. The coaxial cable test fixture according to claim 5, characterized in that: A handle (19) is movably mounted on one end of the winding roller (4), and a ratchet (21) is fixedly mounted on the other end of the winding roller (4). The winding roller (4) located between the handle (19) and the ratchet (21) is rotatably mounted in the through holes on both sides of the mounting frame (2). The winding roller (4) located in the mounting frame (2) is provided with a slot (20). The pressure plate (5) is inserted and installed at the bottom of the slot (20). Second screw grooves (22) are provided on both sides of the top of the pressure plate (5). The lower end of the first mounting bolt (6) passes through the through hole on the top of the winding roller (4) and is threadedly connected to the corresponding second screw groove (22). The two first mounting bolts (6) located above the winding roller (4) are also inserted and connected with a pull rod (24). The first mounting bolt (6) located between the pressure plate (5) and the bottom of the slot (20) is also provided with a second compression spring (23).

7. The coaxial cable test fixture according to claim 4, characterized in that: The fixed wheel (12) is inserted into the rotating groove (10) on the opposite side of the two connecting plates (9), and the fixed shaft (14) passes through the through hole in the support plate (1) and extends to the other side of the support plate (1) and is clamped with a retaining spring.

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