CN111175546A - Portable cable test support frame - Google Patents
Portable cable test support frame Download PDFInfo
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- CN111175546A CN111175546A CN202010015075.2A CN202010015075A CN111175546A CN 111175546 A CN111175546 A CN 111175546A CN 202010015075 A CN202010015075 A CN 202010015075A CN 111175546 A CN111175546 A CN 111175546A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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Abstract
The invention discloses a portable cable test support frame which comprises a support and a cable frame, wherein the cable frame is arranged on the support. The support is a rapidly foldable tripod which can be tightened or spread by rocking a rocker to drive a telescoping device and a linkage. The bottom of the tripod is a triangle sharp foot or a caster composed of universal wheels. The invention can make the power cable meet the test requirement in the test, can guarantee the test interphase of the cable with different voltage grades and the requirement of safe distance to the ground, has the grounding point, can connect the grounding wire to reliably ground, has the characteristics of convenient carrying, simple operation and rapidness, can improve the efficiency of the power cable test, and increases the reliability of the power cable support in the test.
Description
Technical Field
The invention relates to an auxiliary tool for high-voltage and ultrahigh-voltage tests, in particular to a portable cable test support frame.
Background
The power cable is a main carrier of power transmission, has incomparable advantages of overhead lines in the aspects of ensuring safety performance, saving occupied space, connecting special areas (including crossing roads, railways and the like), and is increasingly common along with the application of the power cable, and necessary detection and test are necessary for ensuring normal, safe and efficient operation of the power cable.
With the increase of electric loads and the environmental and human influence on power cables, the use and damage of the power cables are increasing, and the proportion of the test workload of the power cables in the power test work is rapidly increased.
The cable head needs to be supported for ensuring a sufficient safety distance during a power cable test. When a power cable is tested, conditions are sometimes very rough, and effective tools are often not available on the site for supporting, so that an insulation height stool and the like are often used for supporting the tested cable temporarily. These temporary tools do not allow for reliable fixing of the cable, do not provide for standardized safety measures, are not compliant with testing procedures, and are not easily handled.
Disclosure of Invention
The invention aims to solve the technical problem of providing a portable cable test support frame which is used for solving the problems of unreliable fixation and irregular support of a power cable in a test.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a portable cable test support frame comprises a support and a cable frame arranged on the support and used for quickly fixing a power cable.
Furthermore, the support is a foldable tripod and comprises a base, three tubular supporting legs which are uniformly distributed along the circumference are arranged below the base, a folding system is arranged below the base, and the supporting legs and the base are respectively connected with the folding system; the upper part of the supporting leg is hinged with the bottom of the base, and the cable frame is connected to the top of the base and/or the supporting leg.
Further, the folding system comprises a telescopic device and a link mechanism; the top of the telescopic device is fixed at the center of the bottom of the base, one end of the connecting rod mechanism is connected with the telescopic device, and the other end of the connecting rod mechanism is connected with the supporting leg.
Furthermore, the telescopic device comprises a gear box, a push rod, a gear shaft, a crank, a rocker, a guide cylinder, a gear, a gasket and a split pin; the top of the gear box is fixedly connected with the base, and the top of the guide cylinder is fixedly connected with the bottom of the gear box; the guide cylinder is cylindrical, the interior of the guide cylinder is communicated with the interior of the gear box, and the bottom of the guide cylinder is connected with the link mechanism; a cylindrical push rod is arranged in the guide cylinder, and the push rod is in sliding fit with the guide cylinder; the upper part of the push rod is provided with a rack, and the lower part of the push rod is connected with a connecting rod mechanism; the gear shaft is arranged at the lower part of the gear box in a penetrating way, and the gear shaft is in sliding fit with the gear box; the gear shaft is axially positioned through a shaft shoulder on the gear shaft and a split pin at the other end of the gear shaft, and the gasket is sleeved on the gear shaft and is positioned between the split pin and the gear box; the gear is positioned in the gear box and is fixedly connected with the gear shaft; one end of the gear shaft, which is far away from the cotter pin, is hinged with one end of a crank, and the other end of the crank is connected with a rocker; when the rocker is shaken, the gear is driven to rotate, so that the rack meshed with the gear and the push rod fixedly connected with the rack are driven to do vertical linear motion in the guide cylinder.
Further, the connecting rod mechanism comprises a cross rod A, a cross rod B and an inclined rod; the first cross rod, the second cross rod and one end of the inclined rod are hinged together, and the other end of the first cross rod is hinged with the bottom of the guide cylinder; the other end of the cross rod B is hinged with the middle part of the supporting leg, and the other end of the inclined rod is hinged with the bottom of the push rod; when the push rod moves linearly up and down in the guide cylinder, the supporting legs are driven to be tightened or opened through the connecting rod mechanism.
Furthermore, a telescopic rod is arranged at the lower part inside the supporting leg, and the telescopic rod is in sliding connection with the supporting leg; a lock nut for locking the telescopic rod is arranged at the bottom of the supporting leg; scales are arranged on the telescopic rod; the lower part of the telescopic rod is provided with a grounding terminal.
Furthermore, the bottom of the telescopic rod is provided with a triangular sharp foot.
Furthermore, the bottom of the telescopic rod is provided with casters, and the casters are universal wheels with brakes.
Furthermore, the number of the cable racks is four, the top of the base is provided with one cable rack, and three support legs are provided with one cable rack; the cable rack comprises a semicircular fixed seat with an upward opening, and the lower part of the fixed seat is connected with the base or the supporting leg; one end of the fixed seat is provided with a flexible binding belt fixedly connected with the fixed seat, the other end of the fixed seat is provided with a locking block, and the locking block is provided with a hole matched with the binding belt; one end of the binding belt is fixedly connected with the fixing seat, the other end of the binding belt penetrates through a hole in the locking block and is locked by the locking block, and an unlocking button used for loosening the binding belt is arranged on the locking block.
Furthermore, the cable frame on the top of the base is rotatably connected with the base.
The invention has the positive effects that:
the invention can make the power cable meet the test requirements during the test, can ensure the test interphase and grounding safety distance requirements of cables with different voltage classes, has a grounding point, and can be connected with a ground wire for reliable grounding.
Meanwhile, the tripod, the matched telescopic device and the link mechanism adopted by the invention can ensure that the invention is very convenient to tighten and expand, and the tripod is convenient to carry and simple and rapid to operate. The cable frame can reliably fix the cable, and prevent the cable from sliding down to cause unnecessary trouble. The invention can use sharp feet or casters with brakes, and is suitable for hard and flat supporting surfaces indoors and outdoors and uneven soil supporting surfaces outdoors.
The invention adopts a specific special tool, can improve the efficiency of the power cable test and increase the reliability of the power cable in the test.
In practical use, the invention is simple in folding and unfolding, convenient in adjustment and free from bending over. In addition, the invention is convenient to carry, can obviously shorten the preliminary preparation time of the test, needs to search for the support temporarily in the previous test, shortens the preparation time from fifteen minutes to two minutes after applying the invention, greatly improves the working efficiency, and does not have the phenomenon that the cable falls off from the supporting frame in the test. After the invention is used, the site is more standard and tidy, and the requirement of site-customized 5S management is met.
However, some problems and improvement suggestions are provided for users, for example, due to the fact that the nylon cable ties are used for fixing the cables, the nylon cable ties are abraded to a certain extent after being used for multiple times, the nylon cable ties sometimes have problems in locking, need to be replaced after being used for a certain number of times, and in addition, the nylon cable ties need to be stooped down to adjust the lengths of the three telescopic rods respectively when the tripod is lifted. In view of the above problems, further improvements are needed in the present invention.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the construction of the telescopic device of the present invention;
FIG. 3 is a schematic structural view of example 2 of the present invention;
FIG. 4 is a schematic structural view of the cable holder of the present invention;
FIG. 5 is a top view of the present invention;
in the attached drawings, 1, a power cable; 2. a base; 3. supporting legs; 4. a cable rack; 5. a toe; 6. a telescopic rod; 7. calibration; 8. locking a nut; 9. a telescoping device; 10. a first cross bar; 11. a diagonal bar; 12. a cross bar B; 13. a caster; 14. a ground terminal; 401. an unlock button; 402. a locking block; 403. binding a belt; 404. a fixed seat; 405. a screw; 901. a gear case; 902. a push rod; 903. a gear shaft; 904. a crank; 905. a rocker; 906. a guide cylinder; 907. a gear; 908. a gasket; 909. a cotter pin; 910. a rack.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The technical solution and structure of the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 2, 4 and 5, the portable cable test support frame comprises a base 2, a support leg 3, a cable frame 4, a sharp foot 5, a telescopic rod 6, a lock nut 8, a telescopic device 9, a link mechanism and a grounding terminal 14. The supporting legs 3 are three in number, the tops of the three supporting legs are respectively hinged with the lower part of the base 2 and distributed at intervals of 120 degrees in the center of the base 2, so that the supporting legs 3 and the base 2 form a stable tripod to support the cable rack 4 arranged in the middle of the supporting legs 3 and at the top of the base 2. The number of the cable racks 4 is four, one is arranged on each of the three supporting legs 3, one is arranged at the top of the base 2, and the tested power cable is fixed on the cable racks 4.
The supporting leg 3 is a hollow round tube, a cylindrical telescopic rod 6 is arranged in the supporting leg, and the telescopic rod 6 is in sliding fit with the supporting leg 3. The bottom of the telescopic rod 6 is provided with a triangular sharp foot 5 with a downward pointed end, and the lower part of the telescopic rod 6 is provided with scales 7 and a grounding terminal 14. The telescopic rod 6 can freely extend and contract in the supporting leg 3 and is locked by a nut 8 arranged at the bottom of the supporting leg 3. The height of the length adjusting tripod for extending the supporting legs 3 through the adjusting telescopic rod 6 can be adjusted according to the field and the test requirements, the ground clearance of the cable rack 4 can be adjusted, the length of the telescopic rod 6 extending the supporting legs 3 can be kept consistent according to the scales 7 on the telescopic rod 6, and the tripod can be stably supported. When the present invention is used in the field, the prongs 5 penetrate into the soil, thereby stably fixing the present invention to the ground, and the ground terminal 14 provides reliable grounding of the present invention and the tested power cable.
The telescoping device 9 comprises a gear box 901, a push rod 902, a gear shaft 903, a crank 904, a rocker 905, a guide cylinder 906, a gear 907, a spacer 908 and a split pin 909. The top of the gear box 901 is fixedly connected with the bottom of the base 2, and the top of the guide cylinder 906 is fixedly connected with the bottom of the gear box 901; the guide cylinder 906 is cylindrical, the interior of the guide cylinder 906 is communicated with the interior of the gear box 901, and the bottom of the guide cylinder 906 is connected with a link mechanism; a cylindrical push rod 902 is arranged in the guide cylinder 906, and the push rod 902 is in sliding fit with the guide cylinder 906; the upper part of the push rod 902 is provided with a rack 910, and the bottom of the push rod 902 is connected with a link mechanism. The gear shaft 903 penetrates through the lower part of the gear box 901 and is in running fit with the gear box 901. The gear shaft 903 is divided into three sections of cylinders with diameters decreasing from right to left, and the gear shaft 903 is axially positioned through a shaft shoulder on the gear shaft 903 and a gasket 908 and a split pin 909 at the other end of the gear shaft; the gear 907 is fixed on a section of cylinder in the middle of the gear shaft 903; the right end of the gear shaft 903 is provided with a groove, the lower end of the crank 904 is positioned in the groove and hinged with the gear shaft 903, and the upper end of the crank 904 is connected with a rocker 905; when the rocker 905 is shaken, the crank 904 is driven to rotate along the center of the gear shaft 903, so that the gear 907 is driven to rotate, the rack 910 meshed with the gear 907 and the push rod 902 connected with the rack 910 are driven to do vertical linear motion in the guide cylinder 906, the vertical linear motion of the push rod 902 drives the connecting rod mechanism to drive the three support legs 3 to do adduction or abduction motion, and the opening angle of the support legs 3 can be conveniently adjusted. When the telescopic device is not used, the rocker 905 and the crank 904 can be folded down along the hinge axis at the right end of the gear shaft 903, preventing the rocker 905 from being accidentally damaged.
The link mechanism has three sets, and each supporting leg 3 has one set. The connecting rod mechanism comprises a cross rod A10, a cross rod B12 and an inclined rod 11; one end of the cross rod A10, one end of the cross rod B12 and one end of the inclined rod 11 are hinged together, and the other end of the cross rod A10 is hinged with a lug arranged at the bottom of the guide cylinder 906. The other end of the cross rod B12 is hinged with a lug in the middle of the supporting leg 3, and the other end of the inclined rod 11 is hinged with another lug arranged at the bottom of the push rod 902. When the push rod 902 moves linearly up and down in the guide cylinder 906, the inclined rod 11 can push and pull the hinged position of the cross rod A10 and the cross rod B12 so as to drive the supporting leg 3 to tighten or open. The linkage mechanism can more rapidly tighten or loosen the support legs 3 by using three links than a common method using a single link.
The number of the cable racks 4 is four, the center of the top of the base 2 is provided with one, and the middle parts of the three support legs 3 are respectively provided with one. The cable holder 4 comprises a fixing seat 404, a locking block 402 and a cable tie 403. The fixing base 404 is a semicircle with an upward opening, and the lower part of the fixing base is connected with the base 2 or the supporting leg 3. One end of the fixed seat 404 is connected with the locking block 402, and the other end is connected with the flexible bandage 403. The cable tie 403 passes through a hole arranged in the middle of the locking block 402 and is locked by the locking block 402, an unlocking button 401 is arranged on the locking block 402, and the cable tie 403 can be loosened by pressing the unlocking button 401 on the locking block 402. The power cable is located on the arc surface of the fixed seat 404 and is tied by the tie 403, so that the power cable can be reliably fixed on the invention.
The cable frame 4 positioned at the top of the base 2 is rotatably connected with the base 2. The fixing base 404 in the cable holder 4 is connected to the base 2 by means of screws 405. The screw 405 is fixed on the base 2, and the fixed seat 404 and the screw 405 are in clearance fit, so that the fixed seat 404 can rotate on the top of the base 2, and the cable rack 4 on the top of the base 2 can adjust the direction of the power cable to be tested according to the trend of the power cable to be tested without rotating a tripod.
The main parts of the base 2, the supporting legs 3, the cable rack 4, the telescopic rod 6, the sharp feet 5, the telescopic device 9 and the link mechanism are made of insulating material epoxy resin, so that the requirements on mechanical strength and electrical insulation can be met.
Example 2
As shown in fig. 2 to 5, a portable cable test support frame comprises a base 2, a support leg 3, a cable frame 4, a sharp foot 5, a telescopic rod 6, a locking nut 8, a telescopic device 9, a link mechanism and a grounding terminal 14. The supporting legs 3 have three, and its top is articulated respectively with 2 lower parts of base and distributes with 2 central intervals 120 degrees in base to supporting legs 3 and 2 constitutions stable tripods of base support the cable frame of installing at supporting legs 3 middle part and 2 tops of base, cable frame 4 has four, respectively has one on three supporting legs 3, and there is one at 2 tops of base, and the power cable who is tested is fixed on cable frame 4.
The supporting leg 3 is a hollow round tube, a cylindrical telescopic rod 6 is arranged in the supporting leg, and the telescopic rod 6 is in sliding fit with the supporting leg 3. The bottom of the telescopic rod 6 is provided with a caster 13, the caster 13 is a universal wheel with a brake, and the telescopic rod 6 is provided with scales 7 and a grounding terminal 14. The telescopic rod 6 is freely telescopic in the supporting leg 3 and locked by a nut 8 arranged at the bottom of the supporting leg 3. The height of the tripod can be adjusted by adjusting the length of the telescopic rod 6 extending out of the supporting leg 3, so that the ground clearance of the cable rack 4 can be adjusted according to the field and test requirements, the length of the telescopic rod 6 extending out of the supporting leg 3 can be kept consistent according to the scales 7 on the telescopic rod 6, and the tripod can be stably supported. When the invention is used indoors or when a hard supporting surface is flat, the caster 3 can be conveniently moved and adjusted in direction, after the position is determined, the invention can be stably fixed on the ground by using a brake, and the grounding terminal 14 provides reliable grounding for the invention and a tested power cable.
The telescoping device 9 comprises a gear box 901, a push rod 902, a gear shaft 903, a crank 904, a rocker 905, a guide cylinder 906, a gear 907, a spacer 908 and a split pin 909. The top of the gear box 901 is fixedly connected with the bottom of the base 2, and the top of the guide cylinder 906 is fixedly connected with the bottom of the gear box 901; the guide cylinder 906 is cylindrical, the interior of the guide cylinder 906 is communicated with the interior of the gear box 901, and the bottom of the guide cylinder 906 is connected with a link mechanism; a cylindrical push rod 902 is arranged in the guide cylinder 906, and the push rod 902 is in sliding fit with the guide cylinder 906; the upper part of the push rod 902 is provided with a rack 910, and the bottom of the push rod 902 is connected with a link mechanism. The gear shaft 903 penetrates through the lower part of the gear box 901 and is in running fit with the gear box 901. The gear shaft 903 is divided into three sections of cylinders with diameters decreasing from right to left, and the gear shaft 903 is axially positioned through a shaft shoulder on the gear shaft 903 and a gasket 908 and a split pin 909 at the other end of the gear shaft; the gear 907 is fixed on a section of cylinder in the middle of the gear shaft 903; the right end of the gear shaft 903 is provided with a groove, the lower end of the crank 904 is positioned in the groove and hinged with the gear shaft 903, and the upper end of the crank 904 is connected with a rocker 905; when the rocker 905 is shaken, the crank 904 is driven to rotate along the center of the gear shaft 903, so that the gear 907 is driven to rotate, the rack 910 meshed with the gear 907 and the push rod 902 connected with the rack 910 are driven to do vertical linear motion in the guide cylinder 906, the vertical linear motion of the push rod 902 drives the connecting rod mechanism to drive the three support legs 3 to do adduction or abduction motion, and the opening angle of the support legs 3 can be conveniently adjusted. When the telescopic device is not used, the rocker 905 and the crank 904 can be folded down along the hinge axis at the right end of the gear shaft 903, preventing the rocker 905 from being accidentally damaged.
The link mechanism has three sets, and each supporting leg 3 has one set. The connecting rod mechanism comprises a cross rod A10, a cross rod B12 and an inclined rod 11; one end of the cross rod A10, one end of the cross rod B12 and one end of the inclined rod 11 are hinged together, and the other end of the cross rod A10 is hinged with a lug arranged at the bottom of the guide cylinder 906. The other end of the cross rod B12 is hinged with a lug in the middle of the supporting leg 3, and the other end of the inclined rod 11 is hinged with another lug arranged at the bottom of the push rod 902. When the push rod 902 moves linearly up and down in the guide cylinder 906, the inclined rod 11 can push and pull the hinged position of the cross rod A10 and the cross rod B12 so as to drive the supporting leg 3 to tighten or open. The linkage mechanism can more rapidly tighten or loosen the support legs 3 by using three links than a common method using a single link.
The number of the cable racks 4 is four, the center of the top of the base 2 is provided with one, and the middle parts of the three support legs 3 are respectively provided with one. The cable holder 4 comprises a fixing seat 404, a locking block 402 and a cable tie 403. The fixing base 404 is a semicircle with an upward opening, and the lower part of the fixing base is connected with the base 2 or the supporting leg 3. One end of the fixed seat 404 is connected with the locking block 402, and the other end is connected with the flexible bandage 403. The cable tie 403 passes through a hole arranged in the middle of the locking block 402 and is locked by the locking block 402, an unlocking button 401 is arranged on the locking block 402, and the cable tie 403 can be loosened by pressing the unlocking button 401 on the locking block 402. The power cable is located on the arc surface of the fixed seat 404 and is tied by the tie 403, so that the power cable can be reliably fixed on the invention.
The cable frame 4 positioned at the top of the base 2 is rotatably connected with the base 2. The fixing base 404 in the cable holder 4 is connected to the base 2 by means of screws 405. The screw 405 is fixed on the base 2, and the fixed seat 404 and the screw 405 are in clearance fit, so that the fixed seat 404 can rotate on the top of the base 2, and the cable rack 4 on the top of the base 2 can adjust the direction of the power cable to be tested according to the trend of the power cable to be tested without rotating a tripod.
The main parts of the base 2, the supporting legs 3, the cable rack 4, the telescopic rod 6, the sharp feet 5, the telescopic device 9 and the link mechanism are made of insulating material epoxy resin, so that the requirements on mechanical strength and electrical insulation can be met.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a experimental support frame of portable cable which characterized in that, it includes the support and establishes cable frame (4) that is used for quick fixed power cable (1) on the support.
2. A portable cable test stand according to claim 1, wherein the stand is a foldable tripod, and comprises a base (2), three tubular supporting legs (3) uniformly distributed along the circumference are arranged under the base (2), a folding system is arranged under the base (2), and the supporting legs (3) and the base (2) are respectively connected with the folding system; the upper part of the supporting leg (3) is hinged with the bottom of the base (2), and the cable rack (4) is connected to the top of the base (2) and/or the supporting leg (3).
3. A portable cable test stand according to claim 2, wherein the folding system comprises a telescopic device (9) and a linkage mechanism; the top of the telescopic device (9) is fixed at the center of the bottom of the base (2), one end of the connecting rod mechanism is connected with the telescopic device (9), and the other end of the connecting rod mechanism is connected with the supporting leg (3).
4. A portable cable testing support frame according to claim 3, characterized in that the telescoping device (9) comprises a gear box (901), a push rod (902), a gear shaft (903), a crank (904), a rocker (905), a guide cylinder (906), a gear (907), a washer (908) and a split pin (909); the top of the gear box (901) is fixedly connected with the base (2), and the top of the guide cylinder (906) is fixedly connected with the bottom of the gear box (901); the guide cylinder (906) is cylindrical, the interior of the guide cylinder is communicated with the interior of the gear box (901), and the bottom of the guide cylinder (906) is connected with the link mechanism; a cylindrical push rod (902) is arranged in the guide cylinder (906), and the push rod (902) is in sliding fit with the guide cylinder (906); the upper part of the push rod (902) is provided with a rack (910), and the lower part of the push rod (902) is connected with a link mechanism; the gear shaft (903) is installed at the lower part of the gear box (901) in a penetrating mode, and the gear shaft (903) is in sliding fit with the gear box (901); the gear shaft (903) is axially positioned through a shaft shoulder on the gear shaft (903) and a split pin (909) at the other end of the gear shaft (903), and the gasket (908) is sleeved on the gear shaft (903) and is positioned between the split pin and the gear box; the gear (907) is positioned inside the gear box (901) and is fixedly connected with the gear shaft (903); one end of the gear shaft (903) far away from the cotter pin (909) is hinged with one end of a crank (904), and the other end of the crank (904) is connected with a rocker (905); when the rocker (905) is shaken, the gear (907) is driven to rotate, so that the rack (910) meshed with the gear (907) and the push rod (902) fixedly connected with the rack (910) are driven to do vertical linear motion in the guide cylinder (906).
5. A portable cable test stand according to claim 4, wherein the linkage comprises a first cross bar (10), a second cross bar (12) and a diagonal bar (11); the cross bar A (10), the cross bar B (12) and one end of the inclined rod (11) are hinged together, and the other end of the cross bar A (10) is hinged with the bottom of the guide cylinder (906); the other end of the cross rod B (12) is hinged with the middle part of the supporting leg (3), and the other end of the inclined rod (11) is hinged with the bottom of the push rod (902); when the push rod (902) does up-and-down linear motion in the guide cylinder (906), the supporting legs (3) are driven to be tightened or opened through the connecting rod mechanism.
6. The portable cable test support frame according to claim 2, wherein a telescopic rod (6) is arranged at the lower part inside the supporting leg (3), and the telescopic rod (6) is in sliding connection with the supporting leg (3); a lock nut (8) for locking the telescopic rod (6) is arranged at the bottom of the supporting leg (3); scales (7) are arranged on the telescopic rod (6); the lower part of the telescopic rod (6) is provided with a grounding terminal (14).
7. A portable cable test support according to claim 6, characterised in that the bottom of the telescopic rod (6) is provided with a triangular prong (5).
8. The portable cable test support frame according to claim 6, wherein casters (13) are arranged at the bottom of the telescopic rod (6), and the casters (13) are universal wheels with brakes.
9. A portable cable testing support according to claim 2, wherein there are four of the cable holders (4), one on top of the base (2) and one on each of the three support legs (3); the cable rack (4) comprises a semicircular fixed seat (404) with an upward opening, and the lower part of the fixed seat (404) is connected with the base (2) or the supporting leg (3); one end of the fixed seat (404) is provided with a flexible bandage (403) fixedly connected with the fixed seat, the other end of the fixed seat is provided with a locking block (402), and the locking block (402) is provided with a hole matched with the bandage (403); one end of the tie (403) is fixedly connected with the fixing seat (404), the other end of the tie passes through a hole in the locking block (402) and is locked by the locking block (402), and an unlocking button (401) used for loosening the tie (403) is arranged on the locking block (402).
10. A portable cable test support according to claim 9, wherein the cable holder (4) at the top of the base (2) is rotatably connected to the base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015075.2A CN111175546A (en) | 2020-01-07 | 2020-01-07 | Portable cable test support frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015075.2A CN111175546A (en) | 2020-01-07 | 2020-01-07 | Portable cable test support frame |
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| Publication Number | Publication Date |
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| CN111175546A true CN111175546A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010015075.2A Pending CN111175546A (en) | 2020-01-07 | 2020-01-07 | Portable cable test support frame |
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| CN (1) | CN111175546A (en) |
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Application publication date: 20200519 |
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