Safety hook for power cable

Abstract

The invention provides a power cable safety hook, and relates to the technical field of power cable hooks, the power cable safety hook comprises a first chuck, a second chuck, a telescopic assembly and a hanging ring, the first chuck and the second chuck are arranged in a spaced mode in the first direction and each provided with a mounting end and a free end; the free end of the first clamping head and the free end of the second clamping head are suitable for being clamped on the peripheral wall of the same power cable, and the first direction is consistent with the extension direction of the power cable; the first clamping head, the telescopic assembly and the second clamping head are sequentially connected, and the telescopic assembly can push and pull the first clamping head and the second clamping head to stretch out and draw back in the first direction so as to adjust the distance between the first clamping head and the second clamping head; the hanging ring is installed on the telescopic assembly, and the hanging ring is suitable for being connected with a bearing object so that the power cable can be hung on the bearing object. According to the invention, the clamping requirements of power cables with various length specifications can be met, the erection quality of the power cables is ensured, the arrangement number of hooks is reduced, and the construction efficiency of erecting the power cables is improved to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of power cable hooks, and in particular to a power cable safety hook. Background Art

[0002] Power cables are used to transmit and distribute electrical energy. They are widely used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. The basic structure of power cables includes four parts: core, insulation layer, shielding layer, and protective layer. Because of its advantages of small footprint, high reliability, and low maintenance workload, it has become a key component for power transmission in the power system.

[0003] The power cable safety hook is an important component of assisting the installation of power cables. It can suspend power cables to avoid tangling of power cables. However, the hook in the related art cannot adapt to the clamping requirements of power cables of various lengths and specifications, and the clamping stability of the power cables is insufficient. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a power cable safety hook, which can meet the clamping requirements of power cables of various length specifications, ensure the quality of power cable installation, reduce the number of hooks installed, and improve the construction efficiency of power cable installation to a certain extent.

[0006] According to an embodiment of the present invention, a power cable safety hook comprises a first clamp, a second clamp, a retractable component and a lifting ring, wherein the first clamp and the second clamp are arranged at intervals along a first direction and each has a mounting end and a free end, the free end of the first clamp and the free end of the second clamp are both suitable for clamping on the outer peripheral wall of the same power cable, and the first direction is consistent with the extension direction of the power cable; the first clamp, the retractable component and the second clamp are connected in sequence, and the retractable component can push and pull the first clamp and the second clamp to retract along the first direction to adjust the distance between the first clamp and the second clamp; the lifting ring is installed on the retractable component, and the lifting ring is suitable for being connected to a load-bearing object so that the power cable is suspended on the load-bearing object.

[0007] The power cable safety hook according to the embodiment of the present invention can clamp the power cable along the length direction of the power cable by cooperating with the first clamp and the second clamp, thereby forming two supporting points on the installed power cable. At the same time, the telescopic component pushes and pulls the first clamp and the second clamp towards or away from each other along the length direction of the power cable, and can change the distance between the two, so that the first clamp and the second clamp are suitable for clamping power cables of different length specifications, which not only reduces the number of hooks required for hanging the same power cable, simplifies construction operations, and improves construction efficiency, but also can adjust the distance between the first clamp and the second clamp only through the telescopic component, which is conducive to the maintenance of the horizontality of the suspended power cable in the later stage, so as to effectively avoid the problem of chaotic entanglement between multiple suspended power cables. Therefore, compared with the related art, the present invention can meet the clamping requirements for power cables of various length specifications, ensure the installation quality of power cables, reduce the number of hooks, and improve the construction efficiency of installing power cables to a certain extent.

[0008] In some embodiments, the first clamp and the second clamp each include a first hook clamp, a second hook clamp, a first rod, a second rod, and a locking member.

[0009] Wherein, the first hook clip and the second hook clip both have a connecting portion and a clamping body portion connected to each other, the clamping body portion of the first hook clip and the clamping body portion of the second hook clip are arranged along a second direction and define a clamping channel for accommodating the power cable therebetween, and the second direction is perpendicular to the first direction;

[0010] Wherein, the first rod, the connecting portion of the first hook clip, the connecting portion of the second hook clip and the second rod are pivotally connected in sequence to form a four-bar linkage, the telescopic component is connected to the four-bar linkage of each of the first clamp and the second clamp, the four-bar linkage has a first pivot axis, a second pivot axis, a third pivot axis and a fourth pivot axis which are sequentially distributed in a quadrilateral, and the first rod is pivotally connected to the connecting portion of the first hook clip around the first pivot axis;

[0011] Wherein, the locking member can lock the connecting portion of the first hook clip and the connecting portion of the second hook clip when the connecting portion of the first hook clip is pivoted to any position relative to the connecting portion of the second hook clip.

[0012] In some embodiments, the distance from the first pivot axis to the second pivot axis is equal to the distance from the third pivot axis to the second pivot axis, and the distance from the first pivot axis to the fourth pivot axis is equal to the distance from the third pivot axis to the fourth pivot axis.

[0013] In some embodiments, the clamping body of the first hook clamp and the clamping body of the second hook clamp both have clamping surfaces, the clamping channel is defined between the clamping surfaces of the first hook clamp and the second hook clamp, and the clamping surfaces are in contact with the outer peripheral wall of the power cable.

[0014] In some embodiments, the locking member includes a limit column and a limit hook, the limit column is installed on any one of the first hook clip and the second hook clip, the limit hook is pivotally connected to any one of the first rod and the second rod, the limit hook is provided with a slot and has a locking position and an unlocking position, the limit column is engaged in the slot when the limit hook is in the locking position, and the limit column is disengaged from the slot when the limit hook is in the unlocking position.

[0015] In some embodiments, the telescopic component includes a first telescopic member, a second telescopic member, a third telescopic member and a fourth telescopic member, the first telescopic member is pivotally connected to the first rod of each of the first clamp and the second clamp around the fourth pivot axis, the second telescopic member is pivotally connected to the connecting portion of the first hook clamp of each of the first clamp and the second clamp around the first pivot axis, the third telescopic member is pivotally connected to the connecting portion of the second hook clamp of each of the first clamp and the second clamp around the second pivot axis, and the fourth telescopic member is pivotally connected to the second rod of each of the first clamp and the second clamp around the third pivot axis.

[0016] In some embodiments, the first telescopic member, the second telescopic member, the third telescopic member and the fourth telescopic member all have a threaded rod and a sleeve, the threaded rod and the sleeve both extend along the first direction, at least part of the threaded rod is threadedly engaged in the sleeve, the part of the threaded rod facing away from the sleeve is pivotally connected to the mounting end of the first chuck, and the part of the sleeve facing away from the threaded rod is connected to the mounting end of the second chuck.

[0017] In some embodiments, the threaded rod comprises a mounting section, a first transition section, a threaded section, and a second transition section which are sequentially connected along the first direction, a shoulder is formed at the connection between the mounting section and the first transition section, the mounting section is pivotally connected to the mounting end of the first chuck, an operating portion is provided on the first transition section so that the threaded rod can be screwed by the operating portion, at least a portion of the threaded section is threadedly connected to the sleeve, and the second transition section is pivotally connected to the sleeve;

[0018] The telescopic component also includes a stopper, which is detachably connected to the mounting section. The stopper, the outer peripheral wall of the mounting section and the shaft shoulder jointly define a mounting area, and the mounting end of the first clamp is located in the mounting area.

[0019] In some embodiments, the power cable safety hook also includes a sliding sleeve and a limiting bolt, the sliding sleeve is connected to the lifting ring and is movably connected to the sleeve of the first telescopic member along the first direction so as to adjust the position of the lifting ring on the sleeve of the first telescopic member, and the limiting bolt can lock the two when the sliding sleeve moves to any position relative to the sleeve of the first telescopic member.

[0020] In some embodiments, the sleeve of the first telescopic member is provided with a slide groove, which extends in a direction from the outer circumferential wall of the sleeve of the first telescopic member toward the inner circumferential wall and extends to the inner circumferential wall of the sleeve of the first telescopic member, the sleeve is slidably connected to the slide groove, the limit bolt is threadedly connected to the sleeve, and at least a portion of the limit bolt is suitable for passing through the sleeve and the slide groove in sequence and pressing against the outer circumferential wall of the threaded rod of the first telescopic member.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 2 is a schematic diagram of the main structure of a power cable safety hook according to an embodiment of the present invention.

[0023] Figure 2 1 is a schematic side structural diagram of a power cable safety hook according to an embodiment of the present invention.

[0024] Figure 3 Schematic diagram of the structure of a threaded rod in a power cable safety hook according to an embodiment of the present invention.

[0025] Reference numerals: 1, first clamp, 11, first hook clamp, 111, connecting portion, 112, clamp body portion, 113, clamping channel, 114, clamping surface, 12, second hook clamp, 13, first rod, 14, second rod, 15, locking member, 151, limiting column, 152, limiting hook, 1521, slot, 16, first pivot axis, 17, second pivot axis, 18, third pivot axis, 19, fourth pivot axis , 2. second chuck, 3. telescopic component, 31. first telescopic member, 311. threaded rod, 3111. mounting section, 3112. first transition section, 3113. threaded section, 3114. second transition section, 3115. operating part, 312. sleeve, 3121. slide groove, 32. second telescopic member, 33. third telescopic member, 34. fourth telescopic member, 35. stopper, 4. lifting ring, 5. sliding sleeve, 6. limiting bolt. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] like Figure 1 As shown, a power cable safety hook according to an embodiment of the present invention comprises a first clamp 1, a second clamp 2, a retractable component 3 and a lifting ring 4, wherein the first clamp 1 and the second clamp 2 are arranged at intervals along a first direction and both have a mounting end and a free end, the free end of the first clamp 1 and the free end of the second clamp 2 are both suitable for clamping on the outer peripheral wall of the same power cable, and the first direction is consistent with the extension direction of the power cable; the first clamp 1, the retractable component 3 and the second clamp 2 are connected in sequence, and the retractable component 3 can push and pull the first clamp 1 and the second clamp 2 to retract and retract along the first direction to adjust the distance between the first clamp 1 and the second clamp 2; the lifting ring 4 is installed on the retractable component 3, and the lifting ring 4 is suitable for being connected to a load-bearing object so that the power cable is suspended on the load-bearing object.

[0028] The first clamp 1 and the second clamp 2 are used to clamp the power cable of the embodiment of the present invention, and the first clamp 1 and the second clamp 2 are used to clamp the power cable of the embodiment of the present invention. The first clamp 1 and the second clamp 2 are used to clamp the power cable of the embodiment of the present invention. The first clamp 1 and the second clamp 2 are used to clamp the power cable of the embodiment of the present invention. The first clamp 1 and the second clamp 2 are used to clamp the power cable of the embodiment of the present invention. The first clamp 1 and the second clamp 2 are used to clamp the power cable of the embodiment of the present invention.

[0029] Specifically, the first direction may be the left-right direction in the figure. The first clamp 1 may be located at the left end of the second clamp 2. The lifting ring 4 may be located above the first clamp 1, the second clamp 2 and the retractable component 3. The load-bearing object is also the foundation for erecting power cables.

[0030] It should be noted that, since the distance between the first clamp 1 and the second clamp 2 is adjustable through the telescopic component 3, the safety hook can meet the hanging requirements for power cables of different lengths and specifications, and has high flexibility in use.

[0031] like Figure 2 As shown, in some embodiments, the first clamp 1 and the second clamp 2 each include a first hook clamp 11 , a second hook clamp 12 , a first rod 13 , a second rod 14 and a locking member 15 .

[0032] Among them, the first hook clip 11 and the second hook clip 12 both have a connected connecting portion 111 and a clamping body portion 112, the clamping body portion 112 of the first hook clip 11 and the clamping body portion 112 of the second hook clip 12 are arranged along the second direction and define a clamping channel 113 for accommodating the power cable therebetween, and the second direction is perpendicular to the first direction.

[0033] Among them, the first rod 13, the connecting portion 111 of the first hook clamp 11, the connecting portion 111 of the second hook clamp 12 and the second rod 14 are pivotally connected in sequence to form a four-bar linkage, and the telescopic component 3 is connected to the four-bar linkage of each of the first chuck 1 and the second chuck 2, that is, the telescopic component 3 is connected between the four-bar linkage of the first chuck 1 and the four-bar linkage of the second chuck 2, and the four-bar linkage has a first pivot axis 16, a second pivot axis 17, a third pivot axis 18 and a fourth pivot axis 19 distributed in a quadrilateral in sequence, and the first rod 13 is pivotally connected to the connecting portion 111 of the first hook clamp 11 around the first pivot axis 16.

[0034] Among them, the locking member 15 can lock the connecting portion 111 of the first hook clip 11 and the connecting portion 111 of the second hook clip 12 when the connecting portion 111 of the first hook clip 11 is pivoted to any position relative to the connecting portion 111 of the second hook clip 12, that is, when the angle between the clamp body portion 112 of the first hook clip 11 and the clamp body portion 112 of the second hook clip 12 is adjusted to any position, the first hook clip 11 and the second hook clip 12 are locked.

[0035] It can be understood that, through the four-bar linkage formed by the first rod 13, the first hook clamp 11, the second hook clamp 12 and the second rod 14, the distance between the clamp body 112 of the first hook clamp 11 and the clamp body 112 of the second hook clamp 12 in the second direction can be conveniently adjusted to change the width of the clamping channel 113, thereby achieving the clamping or loosening of the power cable, and after being adjusted into place, the first hook clamp 11 and the second hook clamp 12 are locked by the locking member 15 to ensure reliable clamping of the power cable.

[0036] Specifically, the second direction may be the front-to-back direction in the figure. The first hook clip 11 and the second hook clip 12 are arranged in a scissor-like manner, wherein the connecting portion 111 of the first hook clip 11 is located above the clamping body portion 112 of the second hook clip 12, the clamping body portion 112 of the first hook clip 11 is located below the connecting portion 111 of the second hook clip 12, and the clamping body portion 112 of the first hook clip 11 is located at the right end of the frame portion of the second hook clip 12. The first rod 13 and the second rod 14 are both located above each of the first hook clip 11 and the second hook clip 12. The four-bar linkage of the first chuck 1 forms the mounting end of the first chuck 1. The clamping body portion 112 of the first hook clip 11 and the clamping body portion 112 of the second hook clip 12 in the first chuck 1 together form the free end of the first chuck 1. The four-bar linkage of the second chuck 2 forms the mounting end of the second chuck 2. The clamping body portion 112 of the first hook clamp 11 in the second clamping head 2 and the clamping body portion 112 of the second hook clamp 12 together form a free end of the second clamping head 2 .

[0037] like Figure 2As shown, in some embodiments, the distance from the first pivot axis 16 to the second pivot axis 17 is equal to the distance from the third pivot axis 18 to the second pivot axis 17, and the distance from the first pivot axis 16 to the fourth pivot axis 19 is equal to the distance from the third pivot axis 18 to the fourth pivot axis 19, so as to ensure the clamping stability of the first hook clamp 11 and the second hook clamp 12 on the power cable.

[0038] Specifically, the lengths of the first rod 13 and the second rod 14 may be equal. The lengths of the first hook clip 11 and the second hook clip 12 may be equal.

[0039] like Figure 2 As shown, in some embodiments, the clamping body 112 of the first hook clip 11 and the clamping body 112 of the second hook clip 12 both have a clamping surface 114, and a clamping channel 113 is defined between the clamping surface 114 of the first hook clip 11 and the clamping surface 114 of the second hook clip 12, and the clamping surface 114 contacts the outer peripheral wall surface of the power cable. For example, an arc-shaped clamping plate is provided on the clamping body 112 of the first hook clip 11 and the clamping body 112 of the second hook clip 12, and the arc-shaped clamping plate can extend along the first direction, and the arc-shaped clamping plate is suitable for contacting the outer peripheral wall surface of the power cable.

[0040] It can be understood that the clamping surface 114 is designed to contact the outer peripheral wall surface of the power cable, thereby increasing the contact area between the two and ensuring reliable clamping of the power cable.

[0041] like Figure 2 As shown, in some embodiments, the locking member 15 includes a limiting column 151 and a limiting hook 152, the limiting column 151 is installed on any one of the first hook clip 11 and the second hook clip 12, the limiting hook 152 is pivotally connected to any one of the first rod 13 and the second rod 14, the limiting hook 152 is provided with a slot 1521 and has a locking position and an unlocking position, the limiting column 151 is engaged in the slot 1521 when the limiting hook 152 is in the locking position, and the limiting column 151 is disengaged from the slot 1521 when the limiting hook 152 is in the unlocking position.

[0042] It can be understood that when the clamping surface 114 of each of the clamping body portion 112 of the first hook clamp 11 and the clamping body portion 112 of the second hook clamp 12 are pressed against the outer wall of the power cable, the limiting hook 152 can be rotated so that the slot 1521 in the limiting hook 152 is tightly clamped on the limiting column 151, thereby realizing the rapid locking of the relative positions of the first hook clamp 11 and the second hook clamp 12, which has a simple structure and is easy to operate.

[0043] Specifically, the upper end of the limiting hook 152 can be pivotally connected to the second rod 14, and the direction of the pivot axis of the upper end of the limiting hook 152 at the second rod 14 can be consistent with the first direction. The clamping groove 1521 can be provided on the left side wall of the lower end of the limiting hook 152, that is, the clamping groove 1521 is a notch on the left side wall of the lower end of the limiting hook 152. The limiting column 151 can be installed on the clamping body 112 of the first hook clip 11 and extend along the first direction, so that when the limiting hook 152 rotates downward on the second rod 14 to the limiting column 151, its clamping groove 1521 can be tightly held on the outer peripheral wall of the limiting column 151, thereby limiting the relative position of the first hook clip 11 and the second hook clip 12.

[0044] like Figure 1 and Figure 2 As shown, in some embodiments, the telescopic component 3 includes a first telescopic member 31, a second telescopic member 32, a third telescopic member 33 and a fourth telescopic member 34, the first telescopic member 31 is pivotally connected to the first rod 13 of each of the first chuck 1 and the second chuck 2 around a fourth pivot axis 19, the second telescopic member 32 is pivotally connected to the connecting portion 111 of the first hook clamp 11 of each of the first chuck 1 and the second chuck 2 around the first pivot axis 16, the third telescopic member 33 is pivotally connected to the connecting portion 111 of the second hook clamp 12 of each of the first chuck 1 and the second chuck 2 around the second pivot axis 17, and the fourth telescopic member 34 is pivotally connected to the second rod 14 of each of the first chuck 1 and the second chuck 2 around the third pivot axis 18.

[0045] It can be understood that the telescopic component 3 structure is formed by using the first telescopic member 31, the second telescopic member 32, the third telescopic member 33 and the fourth telescopic member 34, and each telescopic member is respectively arranged at the pivot point of the four-bar mechanism of each of the first clamp 1 and the second clamp 2, which can not only ensure the connection strength between the first clamp 1 and the second clamp 2, but also enable the first clamp 1 and the second clamp 2 to be linked to clamp on the outer wall of the power cable or release the clamping of the power cable, further improving the construction efficiency during the installation of the power cable.

[0046] like Figure 1 and Figure 2As shown, in some embodiments, the first telescopic member 31, the second telescopic member 32, the third telescopic member 33 and the fourth telescopic member 34 all have a threaded rod 311 and a sleeve 312, the threaded rod 311 and the sleeve 312 both extend in the first direction, at least part of the threaded rod 311 is threadedly engaged in the sleeve 312, the part of the threaded rod 311 away from the sleeve 312 is pivotally connected to the mounting end of the first chuck 1, that is, the part of the threaded rod 311 away from the sleeve 312 is pivotally installed at any pivot point of the four-bar linkage in the first chuck 1, and the part of the sleeve 312 away from the threaded rod 311 is connected to the mounting end of the second chuck 2, that is, the part of the sleeve 312 away from the threaded rod 311 is fixedly installed at any pivot point of the four-bar linkage in the second chuck 2.

[0047] It can be understood that the telescopic member (including the first telescopic member 31, the second telescopic member 32, the third telescopic member 33 and the fourth telescopic member 34) formed by the cooperation of the threaded rod 311 and the sleeve 312 can be changed by screwing the threaded rod 311 to change the length of the threaded rod 311 in the sleeve 312, that is, to adjust the overall length of the telescopic member, thereby adjusting the distance between the first chuck 1 and the second chuck 2.

[0048] like Figure 1 and Figure 3 As shown, in some embodiments, the threaded rod 311 includes a mounting section 3111, a first transition section 3112, a threaded section 3113 and a second transition section 3114 which are sequentially connected along a first direction, a shoulder is formed at the connection between the mounting section 3111 and the first transition section 3112, the mounting section 3111 is pivotally connected to the mounting end of the first chuck 1, an operating portion 3115 is provided on the first transition section 3112 so that the threaded rod 311 can be screwed by the operating portion 3115, at least a portion of the threaded section 3113 is threadedly connected to the sleeve 312, and the second transition section 3114 is pivotally connected to the sleeve 312.

[0049] The telescopic component 3 also includes a stop block 35, which is detachably connected to the mounting section 3111. The stop block 35, the outer peripheral wall of the mounting section 3111 and the shoulder together define a mounting area. The mounting end of the first chuck 1 is located in the mounting area, wherein the stop block 35 and the shoulder can limit the freedom of the first chuck 1 in the first direction.

[0050] It can be understood that the above-mentioned threaded rod 311 and stopper 35 structure can realize convenient and reliable disassembly and assembly of the first clamp 1 on the threaded rod 311, and the overall structure is simple and the cost is low.

[0051] Specifically, the installation section 3111, the first transition section 3112, the threaded section 3113 and the second transition section 3114 may be coaxial. The operating portion 3115 may be a nut coaxially formed on the first transition section 3112, so that the operator can use a wrench or manually screw the threaded rod 311 through the nut. An internal threaded hole may be coaxially provided on the installation section 3111, and a threaded column may be formed on the stopper 35, and the threaded column is threadedly matched in the internal threaded hole to achieve quick disassembly and assembly between the stopper 35 and the installation section 3111.

[0052] like Figure 1 As shown, in some embodiments, the power cable safety hook also includes a sliding sleeve 5 and a limiting bolt 6. The sliding sleeve 5 is connected to the lifting ring 4 and is movably connected to the sleeve 312 of the first telescopic member 31 along a first direction so as to adjust the position of the lifting ring 4 on the sleeve 312 of the first telescopic member 31. The limiting bolt 6 can lock the two when the sliding sleeve 5 moves to any position relative to the sleeve 312 of the first telescopic member 31.

[0053] It can be understood that by sliding the sleeve 5 on the sleeve 312 to change the position of the lifting ring 4 on the sleeve 312, the lifting ring 4 can be located in the middle of the telescopic part, and after being adjusted into place, the sleeve 5 is limited on the sleeve 312 by the limiting bolt 6 to ensure that the hook can stably suspend the power cable.

[0054] It should be noted that, since the lifting ring 4 is installed on the sleeve 312, after adjusting the length of the threaded rod 311 to fit in the sleeve 312, the position of the lifting ring 4 in the entire telescopic member will be affected. Therefore, in order to ensure the stable suspension of the power cable in the later stage, the lifting ring 4 must be located in the middle position of the entire telescopic member to avoid inconsistent spacing between the first clamp 1 and the second clamp 2 and the lifting ring 4, which may easily lead to an unbalanced suspension of the power cable.

[0055] like Figure 1 As shown, in some embodiments, the sleeve 312 of the first telescopic member 31 is provided with a slide groove 3121, and the slide groove 3121 extends from the outer peripheral wall of the sleeve 312 of the first telescopic member 31 toward the inner peripheral wall, and extends to the inner peripheral wall of the sleeve 312 of the first telescopic member 31, that is, the slide groove 3121 is through and opened on the peripheral wall of the sleeve 312. The length direction of the slide groove 3121 can be the first direction. The sliding sleeve 5 is slidably connected to the slide groove 3121, and the limiting bolt 6 is threadedly connected to the sliding sleeve 5. At least part of the limiting bolt 6 is suitable for sequentially passing through the sliding sleeve 5 and the slide groove 3121 and pressing against the outer peripheral wall of the threaded rod 311 of the first telescopic member 31. The structure in which the sliding sleeve 5, the slide groove 3121 and the limiting bolt 6 cooperate can realize the quick adjustment of the position of the sliding sleeve 5 on the sleeve 312, and the operation is simple.

[0056] Now, combined with the specific structure of the power cable safety hook, its use process is explained, specifically:

[0057] 1) The threaded rod 311 is screwed through the operating part 3115 to adjust the length of the threaded rod 311 in the sleeve 312, and the overall lengths of the first telescopic member 31, the second telescopic member 32, the third telescopic member 33 and the fourth telescopic member 34 are changed in sequence to ensure that the overall lengths of the aforementioned telescopic members are consistent, and the distance between the first clamp 1 and the second clamp 2 is adjusted to match the clamping requirements of power cables of corresponding length specifications;

[0058] 2) Make the sliding sleeve 5 slide along the sleeve 312 of the first telescopic member 31 to adjust the position of the lifting ring 4 on the first telescopic member 31. When the lifting ring 4 is basically located in the middle of the first telescopic member 31, screw the limiting bolt 6 on the sliding sleeve 5 and make it at least partially pass through the sliding sleeve 5 and the sliding groove 3121 in sequence until it is pressed against the threaded rod 311 of the first telescopic member 31, thereby completing the locking operation of the lifting ring 4 on the first telescopic member 31;

[0059] 3) Place the power cable between the first clamp 1 and the second clamp 2, change the distance between the first hook clamp 11 and the second hook clamp 12 until the clamping surfaces 114 of the two are in contact with the outer peripheral wall of the power cable, and rotate the limiting hook 152 so that the slot 1521 of the limiting hook 152 is tightly attached to the limiting column 151, so that the hook clamps the power cable;

[0060] 4) Connect the lifting ring 4 to the load-bearing object to complete the installation of the power cable.

[0061] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention 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 limiting the present invention.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0065] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A power cable safety hook, characterized in that: include: A first clamp and a second clamp, the first clamp and the second clamp are arranged at intervals along a first direction and each has a mounting end and a free end, the free end of the first clamp and the free end of the second clamp are both suitable for clamping on the outer peripheral wall of the same power cable, and the first direction is consistent with the extension direction of the power cable; A telescopic component, wherein the first clamp, the telescopic component and the second clamp are connected in sequence, and the telescopic component can push and pull the first clamp and the second clamp to extend and retract along the first direction to adjust the distance between the first clamp and the second clamp; as well as A lifting ring is installed on the retractable component, and the lifting ring is suitable for being connected to a load-bearing object so that the power cable is suspended on the load-bearing object.

2. The power cable safety hook according to claim 1, characterized in that: The first chuck and the second chuck both include: A first hook clip and a second hook clip, wherein the first hook clip and the second hook clip both have a connecting portion and a clamping body portion connected to each other, the clamping body portion of the first hook clip and the clamping body portion of the second hook clip are arranged along a second direction and define a clamping channel for accommodating the power cable therebetween, and the second direction is perpendicular to the first direction; a first rod and a second rod, the first rod, the connecting portion of the first hook clip, the connecting portion of the second hook clip and the second rod are pivotally connected in sequence to form a four-bar linkage, the telescopic component is connected to the four-bar linkage of each of the first clamp and the second clamp, the four-bar linkage has a first pivot axis, a second pivot axis, a third pivot axis and a fourth pivot axis distributed in sequence in a quadrilateral, the first rod is pivotally connected to the connecting portion of the first hook clip around the first pivot axis; and A locking member capable of locking the connecting portion of the first hook clip and the connecting portion of the second hook clip when the connecting portion of the first hook clip is pivoted to any position relative to the connecting portion of the second hook clip.

3. The power cable safety hook according to claim 2, characterized in that: The distance from the first pivot axis to the second pivot axis is equal to the distance from the third pivot axis to the second pivot axis, and the distance from the first pivot axis to the fourth pivot axis is equal to the distance from the third pivot axis to the fourth pivot axis.

4. The power cable safety hook according to claim 2, characterized in that: The clamping body of the first hook clamp and the clamping body of the second hook clamp both have clamping surfaces, the clamping channel is defined between the clamping surfaces of the first hook clamp and the second hook clamp, and the clamping surfaces are in contact with the outer peripheral wall surface of the power cable.

5. The power cable safety hook according to any one of claims 2 to 4, characterized in that: The locking member includes a limiting column and a limiting hook, the limiting column is installed on any one of the first hook clip and the second hook clip, the limiting hook is pivotally connected to any one of the first rod and the second rod, the limiting hook is provided with a slot and has a locking position and an unlocking position, the limiting column is engaged in the slot when the limiting hook is in the locking position, and the limiting column is disengaged from the slot when the limiting hook is in the unlocking position.

6. The power cable safety hook according to claim 5, characterized in that: The telescopic component includes a first telescopic member, a second telescopic member, a third telescopic member and a fourth telescopic member, the first telescopic member being pivotally connected to the first rod of each of the first clamp and the second clamp around the fourth pivot axis, the second telescopic member being pivotally connected to the connecting portion of the first hook clamp of each of the first clamp and the second clamp around the first pivot axis, the third telescopic member being pivotally connected to the connecting portion of the second hook clamp of each of the first clamp and the second clamp around the second pivot axis, and the fourth telescopic member being pivotally connected to the second rod of each of the first clamp and the second clamp around the third pivot axis.

7. The power cable safety hook according to claim 6, characterized in that: The first telescopic member, the second telescopic member, the third telescopic member and the fourth telescopic member all have a threaded rod and a sleeve, the threaded rod and the sleeve both extend along the first direction, at least part of the threaded rod is threadedly engaged in the sleeve, the part of the threaded rod facing away from the sleeve is pivotally connected to the mounting end of the first chuck, and the part of the sleeve facing away from the threaded rod is connected to the mounting end of the second chuck.

8. The power cable safety hook according to claim 7, characterized in that: The threaded rod comprises a mounting section, a first transition section, a threaded section and a second transition section which are sequentially connected along the first direction, a shoulder is formed at the connection between the mounting section and the first transition section, the mounting section is pivotally connected to the mounting end of the first chuck, an operating portion is provided on the first transition section so that the threaded rod can be screwed by the operating portion, at least a portion of the threaded section is threadedly connected to the sleeve, and the second transition section is pivotally connected to the sleeve; The telescopic component also includes a stopper, which is detachably connected to the mounting section. The stopper, the outer peripheral wall of the mounting section and the shaft shoulder jointly define a mounting area, and the mounting end of the first clamp is located in the mounting area.

9. The power cable safety hook according to claim 6, characterized in that: It also includes a sliding sleeve and a limiting bolt, wherein the sliding sleeve is connected to the lifting ring and is movably connected to the sleeve of the first telescopic member along the first direction so as to adjust the position of the lifting ring on the sleeve of the first telescopic member, and the limiting bolt can lock the two when the sliding sleeve moves to any position relative to the sleeve of the first telescopic member.

10. The power cable safety hook according to claim 9, characterized in that: The sleeve of the first telescopic member is provided with a sliding groove, which extends from the outer circumferential wall of the sleeve of the first telescopic member toward the inner circumferential wall and extends to the inner circumferential wall of the sleeve of the first telescopic member, the sliding sleeve is slidably connected to the sliding groove, the limiting bolt is threadedly connected to the sliding sleeve, and at least a portion of the limiting bolt is suitable for passing through the sliding sleeve and the sliding groove in sequence and pressing against the outer circumferential wall of the threaded rod of the first telescopic member.

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