CN217732316U - Cable reel lifting device - Google Patents

Abstract

The utility model discloses a cable drum hoisting device, include: a traveling system; the locking system is arranged on the walking system to limit the movement of the walking system; the lifting system comprises a central short shaft and a lifting mechanism, wherein the lifting mechanism is installed on the traveling system, the lifting mechanism is connected with the central short shaft to drive the central short shaft to move up and down, the central short shaft is horizontally arranged and comprises an insertion section and a limiting section, the insertion section can be inserted into a shaft hole of the cable reel, and the shaft diameter of the limiting section is larger than that of the insertion section. Can promote the cable drum, it is convenient to have the removal, characteristics simple to use.

Description

Cable reel lifting device

Technical Field

The utility model relates to a cable erection equipment technical field, in particular to cable drum hoisting device.

Background

Under the condition that cable lines need to be used in cable line construction, rush repair, cable test and the like, the cable is collected and released as an indispensable process. In the process of cable reeling and unreeling construction, the hoister is not only inconvenient to move, but also needs to manually adjust a bearing platform of the hoister to a proper height according to the central height of the cable reel before hoisting due to the limited hoisting range, and the step of hoisting the cable reel is complicated; when the bearing platform is adjusted manually, the left bearing platform and the right bearing platform are easy to ascend/descend asynchronously, so that the cable reel is inclined, and potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a cable drum hoisting device has and removes convenience, characteristics simple to use.

According to the utility model discloses cable drum hoisting device, include:

a traveling system;

the locking system is arranged on the walking system to limit the movement of the walking system;

the lifting system comprises a central short shaft and a lifting mechanism, wherein the lifting mechanism is installed on the traveling system, the lifting mechanism is connected with the central short shaft to drive the central short shaft to move up and down, the central short shaft is horizontally arranged and comprises an insertion section and a limiting section, the insertion section can be inserted into a shaft hole of the cable reel, and the shaft diameter of the limiting section is larger than that of the insertion section.

According to the utility model discloses cable drum hoisting device has following beneficial effect at least:

1. through setting up traveling system, change and remove along with the cable laying point, when the cable drum hoisting device of being convenient for removed to the cable laying position, through locking system locking, restriction traveling system's removal to carry out the action of lift cable drum.

2. Before the cable drum is lifted, the two cable drum lifting devices are pushed to the two ends of the cable drum, the central short shafts of the two cable drum lifting devices are aligned with the shaft holes at the two ends of the cable drum, and then the insertion section is inserted into the shaft hole of the cable drum by pushing the cable drum lifting devices or other modes, so that the lifting preparation of the cable drum is completed. Then, the central short shaft is driven to rise through the lifting mechanism, and the cable reel is lifted so as to perform cable laying action. The lifting of the cable reel is simple and rapid, the height of the central short shaft can be adjusted at will, and the cable reel can meet the requirements of cable reels with different outer diameters.

3. Because the shaft diameter of the insertion section is different from that of the limiting section, the steps formed between the insertion section and the limiting section can limit the cable reel to move in the axial direction, and the limiting section can also be inserted into the shaft hole of the cable reel with a larger diameter, so that the requirements of cable reels with different central inner diameters can be met.

According to the utility model discloses a some embodiments still include axial adjustment mechanism, axial adjustment mechanism installs lifting mechanism is last, the central minor axis passes through axial adjustment mechanism installs lifting mechanism is last, axial adjustment mechanism can drive the axial motion of central minor axis along self.

According to some embodiments of the utility model, axial adjustment mechanism includes drive arrangement, transmission and propulsion slip table, it sets up to impel the slip table on the hoist mechanism, it is equipped with the direction track to impel the slip table, the direction track with the axial direction parallel of center minor axis, the center minor axis is installed on the direction track, can along the direction orbital motion, drive arrangement passes through transmission with the center minor axis is connected, can control the center minor axis along the direction orbital motion.

According to some embodiments of the invention, the drive arrangement is a manual wheel, the transmission is a gear set, the manual wheel passes through the gear set with the central stub shaft transmission is connected.

According to some embodiments of the utility model, hoist mechanism includes lift rail, bears lift platform and lift power device, the lift rail is installed on the traveling system, it installs to bear lift platform on the lift rail, can along the lift rail carries out elevating movement, lift power device with it connects to bear the drive of lift platform, with the drive bear the lift platform up-and-down motion, the center minor axis is installed bear on the lift platform.

According to some embodiments of the utility model, still include locking system, locking system can with it is fixed to bear lifting platform locking.

According to some embodiments of the utility model, locking system includes locking subassembly and control, it is equipped with a plurality of locking holes on the lift platform to bear, the locking hole is arranged along vertical direction and is set up, be equipped with the locking tooth on the locking subassembly, the locking subassembly has locking position and free position locking position, the locking tooth inserts at least one the locking is downthehole, with will it is fixed to bear lift platform locking free position, the locking tooth with the locking hole breaks away from, it is right to withdraw bear lift platform locking.

According to some embodiments of the utility model, the locking subassembly includes mount pad, rotatory piece, axis of rotation and elastic component, the mount pad is installed on the lift rail, rotatory piece passes through the axis of rotation with the mount pad rotates to be connected, be equipped with on the rotatory piece locking tooth, locking tooth is one-way latch, one-way latch can prevent bear lift platform downstream, the elastic component with rotatory piece is connected, in order to promote rotatory piece winds the axis of rotation rotates, when the elastic component is in the release state, one-way latch card is gone into in the locking hole, when the elastic component is in compression state, one-way latch is followed deviate from in the locking hole, the control with rotatory piece is connected, can drive rotatory piece winds the axis of rotation rotates.

According to some embodiments of the utility model, the control includes connecting portion and pedal portion, the vertical setting of control, the upper end of control is passed through connecting portion with rotatory piece is connected, the lower extreme of control is equipped with pedal portion.

According to some embodiments of the present invention, the elevator system further comprises a controller, the controller and the hoisting system electric connection.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

fig. 1 is a schematic structural view of a cable drum lifting device according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a cable drum lifting device according to a second embodiment of the present invention;

FIG. 3 is a schematic view of the axial adjustment mechanism;

FIG. 4 is a schematic structural view of a locking system;

fig. 5 is a schematic use view of a cable drum lifting device according to a first embodiment of the present invention;

fig. 6 is a schematic use view of a cable reel lifting device according to a second embodiment of the present invention.

Reference numerals:

a traveling system 100;

the locking system 200;

a central minor axis 310; an insertion section 311; a limiting section 312;

a lifting mechanism 320; a lifting rail 321; a load bearing lift platform 322; a locking hole 3221; a lifting power device 323;

an axial adjustment mechanism 400; a driving device 410; a transmission 420; a push slide table 430;

a locking system 500; a locking assembly 510; a mount 511; a rotation block 512; the locking teeth 5121; a rotating shaft 513; an elastic member 514; a control 520;

a controller 600;

a cable drum 700.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, it can be understood that the cable drum lifting device according to an embodiment of the present invention includes:

a traveling system 100;

a locking system 200 provided on the traveling system 100 to restrict movement of the traveling system 100;

the lifting system comprises a central short shaft 310 and a lifting mechanism 320, the lifting mechanism 320 is installed on the traveling system 100, the lifting mechanism 320 is connected with the central short shaft 310 to drive the central short shaft 310 to move up and down, the central short shaft 310 is horizontally arranged, the central short shaft 310 comprises an insertion section 311 and a limiting section 312, the insertion section 311 can be inserted into a shaft hole of the cable reel 700, and the shaft diameter of the limiting section 312 is larger than that of the insertion section 311.

As shown in connection with fig. 5, before the cable drum 700 is lifted, two cable drum lifting devices are pushed to both ends of the cable drum 700. It will be appreciated that due to the arrangement of the walking system 100, the cable drum lifting device may move as the payout point changes.

After the two cable drum lifters are pushed to the ends of the cable drum 700, the central stub shafts 310 of the two cable drum lifters are aligned with the shaft holes at the ends of the cable drum 700. In this embodiment, the insertion section 311 is inserted into the shaft hole of the cable drum 700 by pushing the two cable drum lifting devices, and after the insertion section 311 is inserted into the shaft hole of the cable drum 700, the locking system 200 locks to restrict the movement of the traveling system 100, so that the traveling system 100 cannot move during subsequent operations, and the preparation for lifting the cable drum 700 is completed. Subsequently, the central stub shaft 310 is lifted by the lifting mechanism 320, and the cable drum 700 is lifted for the cable laying action.

Wherein, highly different with external diameter cable drum 700, the shaft hole high position of cable drum 700 is also different, and the utility model discloses a central minor axis 310's height can be adjusted at will, can adapt to different external diameter cable drum 700's demand. In addition, because the shaft diameters of the insertion section 311 and the limiting section 312 are different, a step can be formed between the insertion section 311 and the limiting section 312, firstly, the movement of the cable reel 700 in the axial direction can be limited, and secondly, the limiting section 312 can also be inserted into the shaft hole of the cable reel 700 with a larger shaft diameter, so that the requirements of the cable reels 700 with different center inner diameters can be met.

It is understood that the central stub shaft 310 of the present invention may be in a rotational or non-rotational configuration. By adopting the rotating arrangement mode, the cable reel 700 can rotate together with the cable reel 700 when being released. If the central stub shaft 310 is non-rotatably disposed, the cable drum 700 may be rotated to take up and pay off the cable by disposing a bearing member between the central stub shaft 310 and the axial hole of the cable drum 700.

As shown in fig. 2, the device further includes an axial adjustment mechanism 400, the axial adjustment mechanism 400 is mounted on the lifting mechanism 320, the central stub shaft 310 is mounted on the lifting mechanism 320 through the axial adjustment mechanism 400, and the axial adjustment mechanism 400 can drive the central stub shaft 310 to move along its own axial direction.

As shown in fig. 6, it can be understood that, in the present embodiment, the axial adjustment mechanism 400 is mounted on the lifting mechanism 320 and can move up and down along with the lifting mechanism 320, and the central short shaft 310 is mounted on the lifting mechanism 320 through the axial adjustment mechanism 400, and the axial adjustment mechanism 400 can drive the central short shaft 310 to move along its own axial direction, that is, the central short shaft 310 can move left or right in fig. 2 under the action of the axial adjustment mechanism 400.

The above arrangement is intended to provide a first embodiment in which the cable drum lifting device is pushed in its entirety, and the central stub shaft 310 is directly aligned with the axial hole of the cable drum 700 and inserted. However, the cable drum lifting device as a whole is a bulky and heavy device, and it is not so easy to push the cable drum lifting device as a whole. The central stub shaft 310 and the axial bore of the cable drum 700 are relatively small and it is not easy to push the drum lifting device to insert the central stub shaft 310 into the axial bore of the cable drum 700, sometimes requiring several iterations to insert the cable drum. That is, the convenience of operation and the one-time success rate are not so desirable.

Instead of pushing the drum lifting device as a whole, the central stub shaft 310 is inserted into the axial bore of the drum 700 in this embodiment. Instead, the axial adjustment mechanism 400 can move the central stub shaft 310 so that the central stub shaft 310 is inserted into the axial hole of the cable drum 700, as long as the central stub shaft 310 and the axial hole of the cable drum 700 are aligned and close to each other. In the process that the axial adjusting mechanism 400 drives the central stub shaft 310 to move, the cable drum lifting device cannot be moved integrally, that is, the situation that the central stub shaft 310 and the shaft hole of the cable drum 700 are dislocated cannot be caused, and the situation that repeated attempts are required cannot be caused.

Referring to fig. 3, the axial adjustment mechanism 400 includes a driving device 410, a transmission device 420, and a push slide 430, the push slide 430 is disposed on the lifting mechanism 320, the push slide 430 is provided with a guide track, the guide track is parallel to the axial direction of the central stub shaft 310, the central stub shaft 310 is mounted on the guide track and can move along the guide track, and the driving device 410 is connected to the central stub shaft 310 through the transmission device 420 and can control the central stub shaft 310 to move along the guide track.

It can be understood that, when the central short shaft 310 is adjusted, the central short shaft 310 slides along the guide track of the pushing slide table 430 under the action of the driving device of the central short shaft 310, and the central short shaft 310 moves along the axial direction of the central short shaft 310 by moving back and forth on the central short shaft 310. The driving device 410 may be powered or driven by human power.

Further, the driving device 410 is a manual rotating wheel, the transmission device 420 is a gear set, and the manual rotating wheel is in transmission connection with the central short shaft 310 through the gear set.

It will be appreciated that a manual wheel is an operating wheel that can be manually rotated by an operator. In the rotating process, the manual rotating wheel drives the driving gear connected with the manual rotating wheel to rotate, the driving gear drives the rack to slide along the track of the guide track, and the central short shaft 310 is connected with the rack and moves along with the rack. It will be appreciated that the outward extension or retraction of the central stub shaft 310 may be achieved by positive and negative rotation of the hand wheel.

In the process that the central short shaft 310 is inserted into the shaft hole of the cable drum 800, the movement of the central short shaft 310 can be more finely controlled by adopting a control mode of manually rotating the operating wheel, and when the central short shaft 310 is not aligned with the shaft hole, the central short shaft 310 can be started or stopped in time, so that the situation that the central short shaft 310 is damaged due to the fact that the central short shaft 310 is not aligned is prevented.

Referring to fig. 1, it can be understood that the lifting mechanism 320 includes a lifting rail 321, a bearing lifting platform 322 and a lifting power device 323, the lifting rail 321 is installed on the traveling system 100, the bearing lifting platform 322 is installed on the lifting rail 321 and can perform lifting motion along the lifting rail 321, the lifting power device 323 is in transmission connection with the bearing lifting platform 322 to drive the bearing lifting platform 322 to move up and down, and the central short shaft 310 is installed on the bearing lifting platform 322.

In this embodiment, by mounting the central short shaft 310 on the bearing lifting platform 322, when the height position of the central short shaft 310 needs to be adjusted, the bearing lifting platform 322 is driven by the lifting power device 323 to move up and down on the lifting rail 321, so as to change the position of the central short shaft 310. It can be understood that the track height stroke of the lifting rail 321 can be set, so that the central short shaft 310 can move to any height in the track, and the requirements of cable drums with various outer diameters can be met.

Referring to fig. 1 and 2, it will be appreciated that the lifting power device 323 is a hydraulic lifting system. It will be appreciated that the hydraulic lift system includes hydraulic pumps, hydraulic cylinders, and the like. The hydraulic lifting system can provide stable power for lifting. It will be appreciated that the lifting power device 323 may also be other power devices, such as an electric drive device.

Referring to fig. 4, it will be appreciated that a locking system 500 is also included, and the locking system 500 is capable of locking the load bearing lift platform 322 in place. The hydraulic lifting system has the function of being static at a certain position, but from the safety perspective, when the equipment works, workers work nearby the periphery of the equipment, the hydraulic lifting system has the possibility of leakage, pressure relief or other possible hydraulic failure, and potential safety hazards exist, the locking system 500 is further arranged, so that the bearing lifting platform 322 is locked and fixed through the locking system 500 after rising to the preset position, and even when the hydraulic system breaks down, the bearing lifting platform 322 can be still prevented from falling. Can carry out double locking protection, guarantee the security.

Referring to fig. 4, it can be understood that the locking system 500 includes a locking assembly 510 and a control member 520, a plurality of locking holes 3221 are disposed on the load-bearing lifting platform 322, the locking holes 3221 are arranged in a vertical direction, a locking tooth 5121 is disposed on the locking assembly 510, the locking assembly 510 has a locking position in which the locking tooth 5121 is inserted into at least one of the locking holes 3221 to lock and fix the load-bearing lifting platform 322, and a free position in which the locking tooth 5121 is disengaged from the locking hole 3221 to unlock the load-bearing lifting platform 322.

In this embodiment, when the lifting platform 322 rises to a certain position, after the height of the cable reel 700 for taking up and paying off cables is satisfied, the locking assembly 510 moves to the locking position, so that at least one locking tooth 5121 is inserted into one locking hole 3221, and the lifting platform 322 is locked and fixed through the limiting function of the locking tooth 5121, even when the hydraulic system fails, the locking tooth 5121 can prevent the lifting platform 322 from sliding downwards, which causes the situation that the cable reel 700 drops, and thereby the safety of peripheral workers is prevented from being threatened.

When the cable reel 700 needs to be put down after the cable is taken up and paid off, the locking assembly 510 is regulated to the free position from the locking position, so that the locking teeth 5121 are separated from the locking holes 3221, the locking teeth 5121 are unlocked to lock the bearing lifting platform 322, the bearing lifting platform 322 can move downwards under the control of the lifting power device 323, and the cable reel 700 is put down.

Referring to fig. 4, it can be understood that the locking assembly 510 includes a mounting base 511, a rotating block 512, a rotating shaft 513 and an elastic member 514, the mounting base 511 is mounted on the lifting rail 321, the rotating block 512 is rotatably connected to the mounting base 511 via the rotating shaft 513, a locking tooth 5121 is provided on the rotating block 512, the locking tooth 5121 is a one-way tooth, the one-way tooth can prevent the bearing lifting platform 322 from moving downward, the elastic member 514 is connected to the rotating block 512 to push the rotating block 512 to rotate around the rotating shaft 513, when the elastic member 514 is in a release state, the one-way tooth is engaged in the locking hole 3221, when the elastic member 514 is in a compression state, the one-way tooth is disengaged from the locking hole 3221, and the control member 520 is connected to the rotating block 512 to drive the rotating block 512 to rotate around the rotating shaft 513.

In this embodiment, in the ascending process of the bearing lifting platform 322, the rotating block 512, under the action of the elastic element 514, may push the one-way latch to be latched into a corresponding one of the locking holes 3221, and when the one-way latch is latched in the locking hole 3221, the one-way latch only may limit the bearing lifting platform 322 to move downward, and may not prevent the bearing lifting platform 322 from moving upward, so that the bearing lifting platform 322 may move upward normally, and the one-way latch may be latched in the next locking hole 3221.

When the bearing lifting platform 322 needs to move downwards, the control member 520 drives the rotating block 512 to rotate around the rotating shaft 513, so that the one-way latch is disengaged from the locking hole 3221, and the one-way latch cancels the limiting effect on the bearing lifting platform 322, so that the bearing lifting platform 322 can normally descend. At this time, when the elastic member 514 is in the compressed state, as long as the control member 520 removes the force applied to the rotation block 512 again, the elastic member 514 can be restored to the release state again from the compressed state, so that the one-way latch presses the locking hole 3221.

In this embodiment, the elastic member 514 includes a compression spring and a guide post, the guide post is vertically slidably mounted on the mounting base 511, the upper end of the guide post is connected with the rotating block 512, the compression spring is sleeved on the guide post, the upper end of the compression spring abuts against the rotating block 512, and the lower end abuts against the mounting base 511. When the compression spring is expanded, the rotation block 512 is pushed to rotate, so that the one-way latch presses against the locking hole 3221. When the control member 520 applies force to the rotating block 512, the rotating block 512 rotates in the opposite direction, the one-way latch is disengaged from the locking hole 3221, and the compression spring is compressed to store energy. The control member 520 removes the force applied to the rotary block 512 and the compression spring is again restored to the release state such that the one-way latch is pressed toward the locking hole 3221.

Referring to fig. 4, it can be understood that the control member 520 includes a connection part and a step part, the control member 520 is vertically disposed, an upper end of the control member 520 is connected to the rotation block 512 through the connection part, and a lower end of the control member 520 is provided with the step part.

In this embodiment, the control member 520 is a rod-shaped member, the upper end of the control member 520 is connected to the rotating block 512, and the lower end is bent to form a pedal portion for pedaling. An operator steps on the pedal part and presses down to drive the rotating block 512 to rotate, so that the one-way latch is disengaged from the locking hole 3221, and the compression spring is compressed to store energy. When the pedal effort is removed, the compression spring returns to the released state again, causing the one-way latch to press against the locking aperture 3221. The control mode of the control piece has the characteristics of simple structure and convenience in operation.

Referring to fig. 1 and 2, it can be understood that a controller 600 is further included, and the controller 600 is electrically connected to the lifting system. The utility model discloses a set up the aim at of controller, be the in-process of lifting cable drum 700, need make cable drum 700 both ends promote in step, otherwise easy both ends height differs, has the risk of slope, if adopt artifical the regulation, appears both ends asynchronous easily, causes the slope of cable drum 700, has the potential safety hazard. This application is through setting up the controller, as long as set up corresponding control program, through controller and lift system electric connection, can be so that the risk of cable drum both ends with the lift through the controller, reduce the slope. When can understand, through setting up the remote controller, through setting up control parameter such as rise, decline on the remote controller, the portable cable drum automatic lifting equipment at remote control cable drum 700 both ends rises with descending, avoids near operation to appear the risk.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A cable drum lifting device, comprising:

a traveling system;

the locking system is arranged on the walking system to limit the movement of the walking system;

the lifting system comprises a central short shaft and a lifting mechanism, wherein the lifting mechanism is installed on the traveling system, the lifting mechanism is connected with the central short shaft to drive the central short shaft to move up and down, the central short shaft is horizontally arranged, the central short shaft comprises an insertion section and a limiting section, the insertion section can be inserted into a shaft hole of a cable reel, and the shaft diameter of the limiting section is larger than that of the insertion section.

2. The cable drum lifting device of claim 1, wherein: the axial adjusting mechanism is installed on the lifting mechanism, the central short shaft passes through the axial adjusting mechanism and is installed on the lifting mechanism, and the axial adjusting mechanism can drive the central short shaft to move along the axial direction of the central short shaft.

3. The cable drum lifting device of claim 2, wherein: axial adjustment mechanism includes drive arrangement, transmission and propulsion slip table, it sets up to impel the slip table lifting mechanism is last, it is equipped with the guide rail to impel the slip table, the guide rail with the axial direction parallel of central minor axis, the central minor axis is installed on the guide rail, can along guide rail motion, drive arrangement passes through transmission with the connection of central minor axis can control the central minor axis along guide rail motion.

4. A cable drum lifting device according to claim 3, characterized in that: the driving device is a manual rotating wheel, the transmission device is a gear set, and the manual rotating wheel is in transmission connection with the central short shaft through the gear set.

5. Cable drum lifting device according to claim 1, characterized in that: the lifting mechanism comprises a lifting rail, a bearing lifting platform and a lifting power device, the lifting rail is installed on the walking system, the bearing lifting platform is installed on the lifting rail and can move up and down along the lifting rail, the lifting power device is in transmission connection with the bearing lifting platform to drive the bearing lifting platform to move up and down, and the central short shaft is installed on the bearing lifting platform.

6. A cable drum lifting device according to claim 5, characterized in that: the locking system can lock and fix the bearing lifting platform.

7. The cable drum lifting device of claim 6, wherein: the locking system comprises a locking assembly and a control piece, a plurality of locking holes are formed in the bearing lifting platform, the locking holes are arranged in the vertical direction, locking teeth are arranged on the locking assembly, the locking assembly is provided with a locking position and a free position, the locking position is used for inserting at least one locking tooth into at least one locking hole, the bearing lifting platform is locked and fixed, and in the free position, the locking teeth are separated from the locking holes so as to cancel locking of the bearing lifting platform.

8. The cable drum lifting device of claim 7, wherein: the locking subassembly includes mount pad, rotatory piece, axis of rotation and elastic component, the mount pad is installed on the lift rail, rotatory piece passes through the axis of rotation with the mount pad rotates to be connected, be equipped with on the rotatory piece locking tooth, locking tooth is one-way latch, one-way latch can prevent bear lift platform downstream, the elastic component with rotatory piece is connected, in order to promote rotatory piece winds the axis of rotation rotates, when the elastic component is in the release state, one-way latch card is gone into in the locking hole, when the elastic component is in compression state, one-way latch is followed deviate from in the locking hole, the control with rotatory piece is connected, can drive rotatory piece winds the axis of rotation rotates.

9. The cable drum lifting device of claim 8, wherein: the control piece includes connecting portion and pedal portion, the vertical setting of control piece, the upper end of control piece passes through connecting portion with rotatory piece is connected, the lower extreme of control piece is equipped with pedal portion.

10. Cable drum lifting device according to claim 1, characterized in that: the lifting system is characterized by further comprising a controller, and the controller is electrically connected with the lifting system.

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