Portable cable take-up and pay-off device

Abstract

The invention provides a portable cable take-up and pay-off device. The portable cable take-up and pay-off device comprises an adjustable winding frame and a movable supporting base. The adjustable winding frame is rotationally mounted on the movable supporting seat; the adjustable winding frame comprises an upper supporting base, an upper supporting pipe, an adjusting pipe, a pipe hoop and a clamping ring. An upper supporting pipe is rotatably mounted on the upper supporting seat, a pipe hoop is mounted on the upper supporting pipe, the clamping ring is rotatably mounted on the pipe hoop, and the adjusting pipe is mounted on the clamping ring; the movable supporting seat comprises a lower supporting seat, a lower supporting pipe and universal wheels; the lower supporting pipe is rotationally mounted on the lower supporting seat, and the universal wheel is mounted on the lower supporting pipe; and the upper supporting seat is rotationally mounted on the lower supporting seat. When the folding chair is unfolded for use, operation can be completed by a single person, the folding chair can be carried by a single person after being folded, and operability and portability are high.

Description

Technical Field

[0001] The invention relates to the technical field of cable unwinding, and in particular to a portable cable retracting device. Background Art

[0002] During field tests and operations, it is often necessary to retract and release the cables of the equipment. In this process, a cable retracting device is used. The winding frame part of the cable retracting device is rotated by electric or manual drive to place the cable reel on the winding frame or release it from the winding frame.

[0003] The existing cable retracting and releasing devices are mainly divided into two types: electric drive and manual drive. The electric drive retracting and releasing device drives the winding frame to rotate by a driving motor to realize cable retracting and releasing. According to the increase in the diameter and weight of the retracted and released cable, the torque of the driving motor should also be increased accordingly, and the size and weight of the motor should be increased accordingly. This retracting and releasing device has the problems of large size, inconvenient to carry, and cannot be used in scenes without power supply; the manual drive retracting and releasing device realizes cable retracting and releasing by rotating the winding frame by manpower, has a simple structure, does not require electricity, and can be carried and operated by one person, which is more suitable for field tests and operation scenarios. The existing manual drive retracting and releasing device has the problems of poor compatibility with cables of different diameters, and insufficient single-person operability and portability. Therefore, there is an urgent need for a retracting and releasing device that is easy for one person to operate and carry and can be used for various types of cables. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a portable cable retracting device.

[0005] A portable cable retracting device according to the present invention comprises: an adjustable winding frame and a movable support seat;

[0006] The adjustable winding frame is rotatably mounted on the movable support seat;

[0007] The adjustable winding frame comprises: an upper support seat, an upper support tube, an adjustment tube, a tube clamp and a clamp ring;

[0008] An upper support tube is rotatably mounted on the upper support seat, a pipe clamp is mounted on the upper support tube, the clamp is rotatably mounted on the pipe clamp, and the adjusting tube is mounted on the clamp;

[0009] The mobile support seat comprises: a lower support seat, a lower support tube and a universal wheel;

[0010] The lower support tube is rotatably mounted on the lower support seat, and the universal wheel is mounted on the lower support tube;

[0011] The upper support seat is rotatably mounted on the lower support seat.

[0012] Preferably, the upper support seat and the lower support seat are rotatably mounted with one or more pipe joints through reaming holes, bolts and nuts;

[0013] The pipe joint of the upper support seat is connected to the upper support tube, and the pipe joint of the lower support seat is connected to the lower support tube.

[0014] Preferably, one end of the pipe clamp is set as an arc end, and the other end is set as a circular step. The arc end of the pipe clamp is sleeved on the upper support tube, and the clamping ring is sleeved on the circumferential side of the circular step. A clamping ring cover is installed on the side of the clamping ring facing away from the arc end, and the clamping ring cover is sleeved on the circumferential side of the circular step.

[0015] Preferably, a threaded through hole is provided on the arc end of the pipe clamp, and the adjusting hand wheel is installed at the threaded through hole. After the adjusting hand wheel is rotated, the adjusting hand wheel is allowed to move along the threaded through hole and press against the upper support pipe;

[0016] The circular step of the pipe clamp is provided with a circular groove in the radial direction, a spring pin and a spring are installed in the circular groove, and the spring pin is ejected toward the center direction away from the circular step through the spring.

[0017] Preferably, one end of the snap ring is set as a circular ring end, and the other end is set as a threaded end;

[0018] The circular ring end is rotatably sleeved on the circumferential side of the circular step, and the circular ring end is provided with a through hole for the spring pin to pass through after being ejected;

[0019] The threaded end is connected to the adjusting tube.

[0020] Preferably, a threaded hole for mounting a handle is provided on the upper support tube, and an upper support tube cover is mounted on the end of the upper support tube.

[0021] Preferably, magnet sheets are provided on the upper support tube and the adjustment tube, and when the adjustment tube is rotated to be parallel to the upper support tube through a clamping ring, the magnet sheet of the adjustment tube is adsorbed on the magnet sheet of the upper support tube.

[0022] Preferably, a linear bearing is installed at the central circular hole of the upper support seat, and a pipe shaft is installed at the central mounting hole of the lower support seat. When the upper support seat is installed on the lower support seat, the pipe shaft is inserted into the linear bearing;

[0023] An angular contact ball bearing is installed on the lower support seat, and the end surface of the angular contact ball bearing is in contact with the bottom surface of the upper support seat.

[0024] Preferably, the lower support tube is composed of a long side tube and a short side tube connected by bending, the long side tube is connected to the pipe joint of the lower support seat, and the universal wheel is installed on the short side tube.

[0025] Preferably, the upper support seat and the lower support seat are both provided with a mounting plate having a cross-shaped groove, and the pipe joint is rotatably mounted on four branches of the mounting plate having the cross-shaped groove.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present application adjusts the position of the adjusting tube by means of a tube clamp, so that the diameter of the winding part can be adjusted arbitrarily within a certain range to meet the needs of retracting and releasing cables with various bending radii.

[0028] 2. Compared with the prior art, the lower support seat of the present application can move in all directions, has strong supporting force and load-bearing capacity.

[0029] 3. Compared with the prior art, the present application can be operated by a single person when unfolded and can be carried by a single person after being folded and folded, and has strong operability and portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the cable retracting and releasing device;

[0032] Figure 2 This is a schematic diagram of the structure of the pipe clamp and the clamp ring;

[0033] Figure 3 This is a schematic diagram of the structure of the upper support seat cooperating with the lower support seat;

[0034] Figure 4 It is a schematic diagram of the structure in folded state;

[0035] As shown in the figure:

[0036] DETAILED DESCRIPTION

[0037] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0038] Example 1

[0039] like Figure 1As shown, this embodiment includes: an adjustable winding frame and a movable support seat, the adjustable winding frame is rotatably installed on the movable support seat; the adjustable winding frame includes: an upper support seat 1, an upper support tube 2, a pipe joint 3, a hinged hole bolt 4, an adjustment tube 5, a pipe clamp 6, a retaining ring 7, a spring pin 8, a spring 9, a retaining ring cover 10, an adjustment hand wheel 11, an upper support tube cover 12, a handle 13, a magnet sheet 14 and a linear bearing 15; the movable support seat includes: a lower support seat 16, a lower support tube 17, an angular contact ball bearing 18, a pipe shaft 19, a universal wheel 20 and a nut 21.

[0040] The adjustable winding frame can adjust the position of each pipe clamp 6 on the upper support tube 2 by turning the adjusting hand wheel 11 to adapt to the requirements of retracting and releasing cables with different bending radii; the upper support tube 2 and the adjustment tube 5 can be folded, and the handle 13 can be retracted inside the upper support tube 2.

[0041] The movable support seat is composed of a lower support seat 16, a lower support tube 17, an angular contact ball bearing 18, a tube shaft 19, a universal wheel 20 and a nut 21. Four lower support tubes 17 are connected to one side of the lower support seat 16, which can be unfolded and folded. Each lower support tube 17 is equipped with a universal wheel 20. In order to ensure that the base support is stable and the sliding is not hindered, the number of lower support tubes 17 and universal wheels 20 can be selected as three, four or six according to the size of the cable retracting device. The lower support tube 17 can be folded and the universal wheel 20 can be removed.

[0042] The upper support tube 2 is rotatably mounted on the upper support seat 1, a tube clamp 6 is mounted on the upper support tube 2, a clamp 7 is rotatably mounted on the tube clamp 6, and an adjusting tube 5 is mounted on the clamp 7; a threaded hole for mounting a handle 13 is provided on the upper support tube 2, and an upper support tube cover 12 is installed at the end of the upper support tube 2. Magnet pieces 14 are provided on the upper support tube 2 and the adjusting tube 5, and when the adjusting tube 5 is rotated to be parallel to the upper support tube 2 through the clamp 7, the magnet piece 14 of the adjusting tube 5 is adsorbed on the magnet piece 14 of the upper support tube 2.

[0043] The lower support tube 17 is rotatably mounted on the lower support seat 16, and the universal wheel 20 is mounted on the lower support tube 17; the lower support tube 17 is composed of a long side tube and a short side tube connected by bending, the long side tube is connected to the pipe joint 3 of the lower support seat 16, and the universal wheel 20 is mounted on the short side tube.

[0044] like Figure 2As shown, one end of the pipe clamp 6 is set as an arc end, and the other end is set as a circular step. The arc end of the pipe clamp 6 is sleeved on the upper support tube 2, and the clamping ring 7 is sleeved on the circumference of the circular step. The clamping ring cover 10 is installed on the side of the clamping ring 7 facing away from the arc end, and the clamping ring cover 10 is sleeved on the circumference of the circular step. A threaded through hole is set on the arc end of the pipe clamp 6, and an adjustment hand wheel 11 is installed at the threaded through hole. After rotating the adjustment hand wheel 11, the adjustment hand wheel 11 is allowed to move along the threaded through hole and press against the upper support tube 2; the circular step of the pipe clamp 6 is provided with a circular groove in the radial direction, and a spring pin 8 and a spring 9 are installed in the circular groove. The spring pin 8 is ejected toward the center of the circle away from the circular step by the spring 9. One end of the clamping ring 7 is set as a circular ring end, and the other end is set as a threaded end; the circular ring end is rotatably sleeved on the circumference of the circular step, and a through hole for the spring pin 8 to pass through after being ejected is set on the circular ring end; the threaded end is connected to the adjustment tube 5.

[0045] like Figure 3 As shown, the upper support seat 1 is rotatably mounted on the lower support seat 16. A linear bearing 15 is mounted at the center circular hole of the upper support seat 1, and a pipe shaft 19 is mounted at the center mounting hole of the lower support seat 16. When the upper support seat 1 is mounted on the lower support seat 16, the pipe shaft 19 is inserted into the linear bearing 15; an angular contact ball bearing 18 is mounted on the lower support seat 16, and the end face of the angular contact ball bearing 18 contacts the bottom face of the upper support seat 1.

[0046] The upper support seat 1 and the lower support seat 16 are both provided with a mounting plate with a cross-shaped groove, and the four branches of the cross-shaped groove mounting plate are all rotatably mounted with pipe joints 3. The upper support seat 1 and the lower support seat 16 are rotatably mounted with one or more pipe joints 3 through the hinged hole bolts 4 and the nuts 21; the pipe joints 3 of the upper support seat 1 are connected to the upper support tube 2, and the pipe joints 3 of the lower support seat 16 are connected to the lower support tube 17.

[0047] like Figure 4 As shown, when working, the movable support seat is unfolded and placed on a plane, the adjustable winding frame unfolding buckle is placed on the movable support seat, and the handle 13 can be turned to retract and release the cable. The position of the movable adjustment tube 5 can adapt to the retracting and releasing requirements of different cables, and the stop switch of the switch universal wheel 20 can move the device or fix the position; when the retracting and releasing device needs to be carried, the movable support seat and the adjustable winding frame are folded and placed relative to each other, and the two can be carried together.

[0048] In one embodiment, the materials of the components of the adjustable winding frame and the movable support seat are provided with an oxide layer or an anti-rust coating to meet the needs of field use.

[0049] In one embodiment, the adjustable winding frame and the movable support seat are made of metal materials with low density and high specific strength, such as aluminum alloy, magnesium alloy, etc.

[0050] Example 2

[0051] Example 2 is a preferred example of Example 1.

[0052] like Figure 1 As shown, this embodiment consists of two parts: an adjustable winding frame and a movable supporting seat.

[0053] The adjustable winding frame includes: an upper support seat 1, a linear bearing 15 installed in the center of the upper support seat 1, a hinged hole bolt and a nut 21 that pass through the mounting hole of the upper support seat 1 to fix the pipe joint 3 to the upper support seat 1, an upper support tube 2 installed on the other side of the pipe joint 3, a pipe clamp 6 sleeved on the outer wall of the upper support tube 2, a spring 9 placed in the circular groove on the side of the circular step at one end of the pipe clamp 6, a spring pin 8 placed on the spring 9, a clamping ring 7 sleeved on the outer circle of the circular step, an adjusting tube 5 installed on the threaded end of the clamping ring 7, a clamping ring cover 10 installed at the threaded part of the outer end of the circular step, an adjusting handwheel 11 installed on the threaded through hole at the arc end of the pipe clamp 6, an upper support tube cover 12 installed on the outer end of the upper support tube 2, a handle 13 installed on the threaded hole near the outer end of the upper support tube 2, and a magnet sheet 14 embedded in the groove on the outer wall of the upper support tube 2 and the adjusting tube 5.

[0054] The movable support seat includes: a lower support seat 16, a pipe shaft 19 installed in the center of the lower support seat 16, a hinged hole bolt 4 and a nut 21 that pass through the mounting hole of the lower support seat 16 to fix the pipe joint 3 to the lower support seat 16, a lower support tube 17 installed at the other end of the pipe joint 3, a universal wheel installed in the mounting hole at the outer end of the lower support tube 17, and an angular contact ball bearing 18 installed at the circular boss of the lower support seat 16.

[0055] Specifically, different pipe threads are provided at both ends of the upper support tube 2, a circular groove is provided on the outer wall of the upper support tube 2, and a mounting hole is provided near the pipe thread at one end; the threaded end of the pipe joint 3 is installed on the upper support tube 2, and one end of the through hole of the pipe joint 3 is placed between the cross-shaped mounting plates of the upper support seat 1 and aligned with the mounting hole of the cross-shaped mounting plate. The hole-making bolt 4 passes through the mounting hole of the cross-shaped mounting plate of the upper support seat 1 and the through hole at the end of the pipe joint 3 to fix the relative position of the two except for rotation, and the nut 20 is installed at the thread at the end of the hole-making bolt 4. Figure 2As shown, the pipe clamp 6 is sleeved on the outer wall of the upper support tube 2, and a threaded through hole is provided at the center of the arc end of the pipe clamp 6, and the adjusting hand wheel 11 is installed in the threaded through hole. A circular step is provided at the other end of the pipe clamp 6, and a threaded section is provided on the circumferential side of the circular step. A circular groove is provided on the circular step, and the spring 9 is placed inside the circular groove, and the spring pin 8 is placed on the spring 9. The spring pin 8 is pressed until it is placed in the circular groove. At this time, the circular end of the clamp ring 7 is sleeved on the outer circle of the circular step, and then the clamp ring cover 10 is installed on the threaded section at the outer end of the circular step. One end of the adjusting tube 5 is provided with a pipe thread, and the outer tube wall is provided with a circular groove. One end of the pipe thread of the adjusting tube 5 is installed on the threaded end of the clamp ring 7. The upper support tube cover 12 is provided with mounting holes on both end faces, and is provided with threads corresponding to the pipe threads at the end of the upper support tube 2 in the circumferential direction, and is installed at the pipe threads at the end of the upper support tube 2. The handle 13 is installed at the threaded through hole of the upper support tube 2; the magnet sheet 14 is respectively embedded in the circular grooves of the outer tube walls of the upper support tube 2 and the adjustment tube 5; and the linear bearing 15 is installed at the central circular hole of the upper support seat 1.

[0056] One end of the long side of the lower support tube 17 is provided with a pipe thread, and the short side is provided with a through hole; one end of the pipe joint 3 is installed at one end of the pipe thread at the end of the lower support tube 17, and one end of the through hole of the pipe joint 3 is placed between the cross-shaped mounting plates of the lower support seat 16 and aligned with the mounting holes of the cross-shaped mounting plates. The hole-making bolt 4 passes through the mounting holes of the cross-shaped mounting plates of the lower support seat 16 and the through holes of the end of the pipe joint 3 to fix the relative positions of the two positions except for rotation; the nut 21 is installed at the thread of the end of the hole-making bolt 4. The angular contact ball bearing 18 is installed at the annular boss of the lower support seat 16; the pipe shaft 19 is installed at the central mounting hole of the lower support seat 16, and after the mounting stud on the universal wheel 20 passes through the through hole on the short side of the lower support tube 17, the nut 21 is installed on the stud of the universal wheel 20 to rigidly connect the universal wheel 20 to the lower support tube 17.

[0057] When the cable retracting device is unfolded, the mobile support seat stands on a plane with four universal wheels 20, and can move in all directions. The universal wheels 20 can also be locked to fix the device in one place. The adjustable winding frame buckle is placed on the mobile support seat, and the pipe shaft 19 is inserted into the linear bearing 15. Figure 3 As shown, the bottom surface of the upper support seat 1 fits with the end surface of the angular contact ball bearing 18, so that the adjustable winding frame can rotate and be fixed in the circumferential position with the movable support seat, and the adjusting tube 5 is rotated to make it perpendicular to the upper support tube 2. At this time, the spring pin 8 located in the circular groove of the pipe clamp 6 pops out and slides into the through hole of the clamp 7, so that the position of the adjusting tube 5 is fixed, and then the adjusting hand wheel 11 is loosened, and the position of the pipe clamp 6 on the upper support tube 2 is adjusted according to the bending radius of the cable. After the adjustment, the adjusting hand wheel 11 is locked, and the cable is coiled or the whole bundle of cables is put into the outer ring of the four adjusting tubes 5 according to the needs of winding or releasing the wire, and the handle 13 is turned to wind or release the wire.

[0058] like Figure 4As shown, when the cable retracting and releasing device is in the folded state, remove the four handles 13 on the upper support tube 2 and the four universal wheels 20 on the lower support tube 17, respectively install the handles 13 and the universal wheels 20 at the mounting holes on the two end surfaces of the upper support tube cover 12, insert the handles 13 into the upper support tube 2 and screw the upper support tube cover 12 into the thread at one end of the upper support tube 2; press the spring pin 8 to return it to the circular groove, and at the same time rotate the adjusting tube 5 to make it parallel to the upper support tube 2, then loosen the adjusting hand wheel 11, adjust the position of the pipe clamp 6 on the upper support tube 2, so that the adjusting tube 5 and the magnet sheet 14 on the tube wall of the upper support tube 2 attract and fit each other; rotate the four upper support tubes 2 to close them; rotate the four lower support tubes 17 to close them, and place the folded and movable support seat and the adjustable winding frame relative to each other.

[0059] The assembly process of this embodiment is as follows:

[0060] Step 1. Install one end of the four pipe joints 3 on the end of the upper support tube 2, align the through holes at the other end with the mounting holes on the cross mounting plate on one side of the upper support seat 1, insert the reamed hole bolts 4, and install the nut 21 on the other end of the reamed hole bolts 4, embed the magnet sheet 14 into the outer wall of the upper support tube 2, and install the linear bearing 15 in the center mounting hole of the upper support seat 1.

[0061] Step 2, place the spring 9 in the circular groove on the side of the circular step at one end of the pipe clamp 6, place the spring pin 8 on the spring 9, press the spring pin 8 until it is placed in the circular groove, then put the circular end of the clamp 7 on the outer circle of the circular step, and then install the clamp cover 10 on the outer threaded section of the circular step, install the threaded end of the adjusting tube 5 on the threaded end of the clamp 7, embed the magnet sheet 14 into the outer wall of the adjusting tube 5, and install the adjusting hand wheel 11 on the threaded hole on the other end face of the pipe clamp 6.

[0062] Step 3: respectively put the four pipe clamps 6 on the four upper support tubes 2, respectively install the handles 13 on the threaded through holes near the outer ends of the upper support tubes 2, and install the upper support tube cover 12 on the pipe threads on the outer end surfaces of the upper support tubes 2.

[0063] Step 4. Install the threaded ends of the four pipe joints 3 on the ends of the lower support tube 17, align the through-hole ends with the mounting holes on the cross mounting plate on one side of the lower support seat 16, insert the hole-making bolts 4 and install the nuts 21 on the other ends of the hole-making bolts 4, install the universal wheels 20 on the threaded through-holes near the outer ends of the lower support tube 17, put a pair of angular contact ball bearings 18 on the annular boss on the other side of the lower support seat 16, and install the pipe shaft 19 at the center mounting hole of the lower support seat 16.

[0064] Step 5: Open the four lower support tubes 17 to make the movable support stand on the ground, align the tube shaft 19 with the linear bearing 15 and insert it so that the lower end surface of the upper support seat 1 falls on the angular contact ball bearing 18, and the installation is completed.

[0065] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0066] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A portable cable retracting device, characterized in that: include: Adjustable winding rack and movable support base; The adjustable winding frame is rotatably mounted on the movable support seat; The adjustable winding frame comprises: an upper support seat (1), an upper support tube (2), an adjustment tube (5), a tube clamp (6) and a clamping ring (7); An upper support tube (2) is rotatably mounted on the upper support seat (1), a tube clamp (6) is mounted on the upper support tube (2), the clamping ring (7) is rotatably mounted on the tube clamp (6), and the adjusting tube (5) is mounted on the clamping ring (7); The movable support seat comprises: a lower support seat (16), a lower support tube (17) and a universal wheel (20); The lower support seat (16) is rotatably mounted on the lower support tube (17), and the universal wheel (20) is mounted on the lower support tube (17); The upper support seat (1) is rotatably mounted on the lower support seat (16).

2. The portable cable retracting device according to claim 1, characterized in that: The upper support seat (1) and the lower support seat (16) are rotatably mounted with one or more pipe joints (3) through the use of reaming hole bolts (4) and nuts (21); The pipe joint (3) of the upper support seat (1) is connected to the upper support tube (2), and the pipe joint (3) of the lower support seat (16) is connected to the lower support tube (17).

3. The portable cable retracting device according to claim 1, characterized in that: One end of the pipe clamp (6) is configured as an arc end, and the other end is configured as a circular step. The arc end of the pipe clamp (6) is sleeved on the upper support pipe (2), and the clamping ring (7) is sleeved on the circumference of the circular step. A clamping ring cover (10) is installed on the side of the clamping ring (7) facing away from the arc end, and the clamping ring cover (10) is sleeved on the circumference of the circular step.

4. The portable cable retracting device according to claim 3, characterized in that: A threaded through hole is provided on the arc end of the pipe clamp (6), and the adjusting hand wheel (11) is installed at the threaded through hole. After the adjusting hand wheel (11) is rotated, the adjusting hand wheel (11) is allowed to move along the threaded through hole and press against the upper support pipe (2); The circular step of the pipe clamp (6) is provided with a circular groove along the radial direction, a spring pin (8) and a spring (9) are installed in the circular groove, and the spring pin (8) is ejected toward a direction away from the center of the circular step through the spring (9).

5. The portable cable retracting device according to claim 4, characterized in that: One end of the snap ring (7) is configured as a circular ring end, and the other end is configured as a threaded end; The circular ring end is rotatably sleeved on the circumferential side of the circular step, and the circular ring end is provided with a through hole for the spring pin (8) to pass through after being ejected; The threaded end is connected to the regulating tube (5).

6. The portable cable retracting device according to claim 1, characterized in that: The upper support tube (2) is provided with a threaded hole for mounting a handle (13), and an upper support tube cover (12) is mounted on the end of the upper support tube (2).

7. The portable cable retracting device according to claim 1, characterized in that: The upper support tube (2) and the adjusting tube (5) are provided with magnet pieces (14); when the adjusting tube (5) is rotated to be parallel to the upper support tube (2) through a clamping ring (7), the magnet piece (14) of the adjusting tube (5) is adsorbed on the magnet piece (14) of the upper support tube (2).

8. The portable cable retracting device according to claim 1, characterized in that: A linear bearing (15) is installed at the central circular hole of the upper support seat (1), and a pipe shaft (19) is installed at the central mounting hole of the lower support seat (16); when the upper support seat (1) is installed on the lower support seat (16), the pipe shaft (19) is inserted into the linear bearing (15); An angular contact ball bearing (18) is installed on the lower support seat (16), and the end surface of the angular contact ball bearing (18) is in contact with the bottom surface of the upper support seat (1).

9. The portable cable retracting device according to claim 2, characterized in that: The lower support tube (17) is composed of a long side tube and a short side tube connected by bending, the long side tube is connected to the pipe joint (3) of the lower support seat (16), and the universal wheel (20) is installed on the short side tube.

10. The portable cable retracting device according to claim 2, characterized in that: The upper support seat (1) and the lower support seat (16) are both provided with a mounting plate having a cross-shaped groove, and the pipe joint (3) is rotatably mounted on four branches of the mounting plate having the cross-shaped groove.

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