阅读说明：本技术 新建电力线路裸杆悬挂安全后备绳装置 (Newly-built power line bare rod suspension safety backup rope device ) 是由 郝猛 曹建辉 高海明 齐龙飞 于 2020-04-29 设计创作，主要内容包括：本发明提供一种新建电力线路裸杆悬挂安全后备绳装置,其特征在于：包括锁紧装置和具有弹性的环带,所述锁紧装置设置在所述环带的一端,在所述环带另一端的两个侧边缘设置有齿牙,所述锁紧装置包括套筒和与所述齿牙相配合的手拧螺母,所述套筒的内径大于环带设置有齿牙一端的宽度,所述手拧螺母与套筒转动连接且两者的轴线重合,在所述环带上固定连接有用于悬挂安全后备绳的扣环。该装置可使作业人员在电力线路裸杆上悬挂安全后备绳,使作业人员得到更好的保护,防止出现工伤事故。(The invention provides a device for hanging a safety backup rope on a newly-built power line bare rod, which is characterized in that: including locking device with have elastic clitellum, locking device sets up the one end of clitellum two side edges at the clitellum other end are provided with the tooth, locking device include the sleeve and with tooth matched with hand is twisted the nut, telescopic internal diameter is greater than the width that the clitellum was provided with tooth one end, hand is twisted the nut and is rotated with the sleeve and be connected and axis coincidence between them fixedly connected with is used for hanging the buckle of safe reserve rope on the clitellum. The device can make the operation personnel hang the safe reserve rope on the bare pole of power line, makes the operation personnel obtain better protection, prevents the industrial accident.)

1. The utility model provides a newly-built bare pole of power line hangs safe reserve rope device, includes locking device (16) and has elastic clitellum, locking device (16) set up the one end of clitellum two side edges of clitellum other end are provided with tooth (8), locking device (16) include the sleeve and with tooth (8) matched with hand is twisted nut (10), telescopic internal diameter is greater than the width that the clitellum is provided with tooth (8) one end, hand is twisted nut (10) and sleeve and is rotated and be connected and axis coincidence between them the fixedly connected with is used for hanging buckle (5) of safe reserve rope on the clitellum.

2. The newly-built power line bare rod hanging safety backup rope device according to claim 1, characterized in that: the inner side surface of the ring belt is provided with a rubber plate (2).

3. The newly-built power line bare rod hanging safety backup rope device according to claim 2, characterized in that: the number of the rubber plates (2) is more than 4 and the rubber plates are arranged at intervals along the length direction of the annular belt.

4. The newly-built power line bare rod hanging safety backup rope device according to claim 1, characterized in that: the clitellum includes hoop board (4) and picture peg (1), the one end of picture peg (1) is provided with tooth (8) and its other end and hoop board (4) the one end form the length direction who rotates to be connected and axis of rotation perpendicular to clitellum, the other end of hoop board (4) with sleeve fixed connection.

5. The newly-built power line bare rod hanging safety backup rope device according to claim 4, characterized in that: the length ratio of the hoop plate (4) to the inserting plate (1) is 1: 1.2.

6. The newly-built power line bare rod hanging safety backup rope device according to claim 4, characterized in that: the hand-screwed nut (10) is arranged at one end of the sleeve, and the other end of the sleeve is fixedly connected with the hoop plate (4).

7. The newly-built electric power line bare rod hanging safety backup rope device according to claim 6, characterized in that: the inner diameter of the sleeve is 1.05 times of the width of one end of the ring belt provided with the teeth (8).

8. The newly-built electric power line bare rod hanging safety backup rope device according to claim 6, characterized in that: telescopic one end is provided with and rotates necking down section (11) of being connected with hand screw nut (10), and the end of necking down section (11) is provided with baffle (9), is provided with straight groove (15) that are used for passing picture peg (1) along the axis direction of necking down section (11).

9. The newly-built electric power line bare rod hanging safety backup rope device according to claim 6, characterized in that: the sleeve comprises an outer sliding sleeve (14) and an inner sliding sleeve (12), the inner diameter of the outer sliding sleeve (14) is slightly larger than the outer diameter of the inner sliding sleeve (12), the outer sliding sleeve (14) and the inner sliding sleeve (12) are in sliding connection along the axes of the outer sliding sleeve and the inner sliding sleeve, and a fixing device for fixing the relative positions of the outer sliding sleeve (14) and the inner sliding sleeve (12) is arranged between the outer sliding sleeve and the inner sliding sleeve.

10. The newly-built electric power line bare rod hanging safety backup rope device according to claim 9, characterized in that: the fixing device comprises an adjusting hole (6) formed in the side wall of the outer sliding sleeve (14) and a telescopic pin arranged on the side wall of the inner sliding sleeve (12), and the axis of the telescopic pin is perpendicular to the outer side face of the inserting plate (1).

Technical Field

The invention relates to the field of electric power facility safety protection equipment, in particular to a device for hanging a safety backup rope on a bare rod of a newly-built electric power circuit.

Background

When a power line is newly built in a power construction unit, a plurality of telegraph poles are inserted.

The utility pole is a pole for erecting electric wires as the name implies. It appears in every countryside-field-road-street, and is one of the important infrastructures in the early China. Early utility poles were all started from wooden poles, even including high voltage poles that were not too high in voltage rating.

Early utility poles were all started from wooden poles, even including high voltage poles that were not too high in voltage rating. Later, due to the development of steel bars and concrete, the concrete pole is manufactured by combining the technical research and applying the principle of centrifugal force, most of wood poles are replaced by the reinforced concrete conical cement pole and the equal-diameter cement pole, and the cement pole is firm, durable, corrosion-resistant, temperature difference-resistant, high in strength and crack-resistant. Moreover, applicable wood is gradually scarce, the appearance of the cement telegraph pole is smooth and beautiful, the urban beautification is more convenient, and the wood pole is basically difficult to see in the city. However, the telephone line is erected in some less developed places and a wood pole is also used because the wood pole is light in weight and convenient to erect, the bearing and the tension of the telephone line are small, the wood pole can be competent, and the pole can be conveniently moved if the telephone line is changed. Therefore, there are also parts of wooden telephone poles.

The newly inserted telegraph pole only needs a smooth bare pole, and needs workers to perform various later-stage operations on the bare pole subsequently, and at the moment, the operators can only use a pole climbing device (also called a foot hook) to climb the pole, but the bare pole of the power line is integrally smooth, so that the operators cannot be protected better, and industrial accidents are easy to occur.

Disclosure of Invention

The invention aims to solve the technical problem of providing a device for hanging a safety backup rope on a bare pole of a newly-built power line, which can enable an operator to hang the safety backup rope on the bare pole of the power line.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a newly-built naked pole of power line hangs safe reserve rope device, includes locking device and has elastic clitellum, locking device sets up the one end of clitellum two side edges of the clitellum other end are provided with tooth, locking device include the sleeve and with tooth matched with hand is twisted the nut, telescopic internal diameter is greater than the width that the clitellum is provided with tooth one end, hand is twisted the nut and is rotated with the sleeve and be connected and axis coincidence between them fixedly connected with is used for hanging the buckle of safe reserve rope on the clitellum.

Further: the inner side surface of the ring belt is provided with a rubber plate.

Further: the number of the rubber plates is more than 4, and the rubber plates are arranged at intervals along the length direction of the annular belt.

Further: the clitellum includes hoop board and picture peg, the one end of picture peg is provided with tooth and its other end and hoop board's one end and forms the length direction who rotates the connection and axis of rotation perpendicular to clitellum, hoop board's the other end with sleeve fixed connection.

Further: the length ratio of the hoop plate to the insert plate is 1: 1.2.

Further: the hand-screwed nut is arranged at one end of the sleeve, and the other end of the sleeve is fixedly connected with the hoop plate.

Further: the inner diameter of the sleeve is 1.05 times of the width of one end, provided with teeth, of the annular belt.

Further: telescopic one end is provided with the necking down section of being connected with hand nut screwing rotation, and the end of necking down section is provided with the baffle to be provided with the straight groove that is used for passing the picture peg along the axis direction of necking down section.

Further: the sleeve comprises an outer sliding sleeve and an inner sliding sleeve, the inner diameter of the outer sliding sleeve is slightly larger than the outer diameter of the inner sliding sleeve, the outer sliding sleeve and the inner sliding sleeve are in sliding connection along the axes of the outer sliding sleeve and the inner sliding sleeve, and a fixing device for fixing the relative positions of the outer sliding sleeve and the inner sliding sleeve is arranged between the outer sliding sleeve and the inner sliding sleeve.

Further: the fixing device comprises an adjusting hole formed in the side wall of the outer sliding sleeve and a telescopic pin arranged on the side wall of the inner sliding sleeve, and the axis of the telescopic pin is perpendicular to the outer side face of the inserting plate.

By adopting the technical scheme, the invention has the following beneficial effects:

1. the inventor of the invention sensitively discovers the potential safety hazard of construction on a newly-built power line bare rod in the existing power construction, the former operating personnel can only use a pole climbing device (foot hook) to be fixed on the newly-built power line bare rod, but during the actual construction operation, the operating personnel can have involuntary body shaking, so that the two legs are driven to perform subconscious gravity center adjustment action, the foot hook is driven to move, the potential safety hazard with unstable grasping force is generated, and the reliable hanging point of a safety backup rope can be arranged on the newly-built power line bare rod after the operating personnel climbs to the operation height, so that the risk of accidental falling in the construction of the operating personnel is avoided.

2. According to the technical scheme, the locking device and the elastic girdle band are arranged, the locking device is arranged at one end of the girdle band, the teeth are arranged on two side edges of the other end of the girdle band, the locking device comprises the sleeve and the hand-screwed nut matched with the teeth, the inner diameter of the sleeve is larger than the width of the end, provided with the teeth, of the girdle band, the hand-screwed nut is rotatably connected with the sleeve, and the axes of the hand-screwed nut and the sleeve are overlapped, so that an operator can sleeve the girdle band on a newly-built power circuit bare rod in a manual mode, and then the girdle band can be firmly locked on the newly-built power circuit bare rod only by manual operation, and the operation does not need a practical special tool, and is simple, rapid, safe, reliable and very convenient.

3. According to the technical scheme, the rubber plate is arranged on the inner side surface of the ring belt, so that the device can be more firmly fixed on a smooth newly-built power circuit bare rod through the rubber plate for increasing the friction force.

4. According to the technical scheme that the number of the rubber plates is more than 4 and the rubber plates are arranged at intervals along the length direction of the girdle band, the phenomenon that the rubber plates are easy to delaminate or even separate from the girdle band after long-term use, especially after long-term frequent change of locking diameter, due to the fact that the turning radius of the rubber plates is different from the turning radius of the girdle band, is avoided, the reliability of the device is improved, and the safety of personnel operation is guaranteed.

5. The invention divides the girdle of the device into two sections which can be opened and closed by the technical proposal that the girdle comprises a hoop plate and an insert plate, one end of the insert plate is provided with teeth, the other end of the insert plate is in rotary connection with one end of the hoop plate, the rotary axis is vertical to the length direction of the girdle, and the other end of the hoop plate is fixedly connected with the sleeve, because the ring belt is usually made of elastic metal sheets, the metal sheets are not easy to bend on one hand, and fatigue fracture is easy to occur after repeated large-scale bending on the other hand, so that potential safety hazards are generated, therefore, after the girdle band is divided into two sections which can be opened and closed, the girdle band can be opened to a great extent to remove the girdle to hoop a newly-built power line bare pole with a larger diameter, and then the girdle band can be closed to carry out locking operation conveniently, so that the operation efficiency of installation is improved, and the potential safety hazard of repeated and large-scale opening and closing is avoided.

6. According to the technical scheme, the length ratio of the hoop plate to the plug plate is set to be 1:1.2, so that the opening and closing range of the device is increased as much as possible, the annular belt is divided into two sections of belt plates with equal length in a normal state, the opening and closing range can be maximized, and the device is suitable for newly-built bare poles of power lines with different diameters, but the plug plate also has the length of the inserted locking device, so that through repeated design and research, when the length ratio of the hoop plate to the plug plate is set to be 1:1.2, the sufficient opening and closing range is ensured, and the plug plate is ensured to have sufficient adjustment allowance.

7. According to the technical scheme, the hand-screwed nut is arranged at one end of the sleeve, and the other end of the sleeve is fixedly connected with the hoop plate, so that the hand-screwed nut of the device is positioned far away from the girdle after the girdle is closed, operators can conveniently perform screwing and unscrewing operations on the hand-screwed nut, the operation time for installing the device can be prolonged, sufficient hand-screwing force can be guaranteed, and the locking firmness is guaranteed.

8. According to the technical scheme, the inner diameter of the sleeve is 1.05 times of the width of one end, provided with the teeth, of the ring belt, so that the inserting plate of the device is relatively less prone to shaking after being inserted into the sleeve, the sleeve with the inner diameter ensures that the inserting plate can be quickly and conveniently inserted into the sleeve, and compared with a loose sleeve, the inserted inserting plate is more stable and cannot shake greatly in the sleeve.

9. According to the technical scheme, the necking section which is rotatably connected with the hand-screwed nut is arranged at one end of the sleeve, the baffle is arranged at the tail end of the necking section, and the straight groove which is used for penetrating through the inserting plate is arranged along the axial direction of the necking section, so that the device is more compact and reasonable in structure.

10. The sleeve of the device has an adjusting function through the technical proposal that the sleeve comprises an outer sliding sleeve and an inner sliding sleeve, the inner diameter of the outer sliding sleeve is slightly larger than the outer diameter of the inner sliding sleeve, the outer sliding sleeve and the inner sliding sleeve are connected in a sliding way along the axes of the outer sliding sleeve and the inner sliding sleeve, and a fixing device for fixing the relative positions of the outer sliding sleeve and the inner sliding sleeve is arranged between the outer sliding sleeve and the inner sliding sleeve, since locking the board by hand-threading the nut is a relatively slow process, in order to increase the speed of the locking operation, the distance of movement of the board in the hand-threaded nut should be minimized, the moving distance of the inserting plate in the hand-screwed nut does not have a fixed value aiming at the bare rod of a newly-built power line with different diameters, therefore, the length of the sleeve is adjusted, so that the moving distance of the inserting plate in the hand-screwed nut can be reduced as much as possible by quickly adjusting the length of the sleeve when the bare rod of a newly-built power line with different diameters is used.

11. According to the invention, the fixing device comprises the adjusting hole arranged on the side wall of the outer sliding sleeve and the telescopic pin arranged on the side wall of the inner sliding sleeve, and the axis of the telescopic pin is perpendicular to the outer side surface of the inserting plate, so that the structure of the fixing device is more compact.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front cross-sectional view of the locking device of the present invention;

FIG. 3 is a left side cross-sectional view of the locking device of the present invention;

FIG. 4 is a bottom cross-sectional view of the locking device of the present invention;

the locking device comprises a plug board 1, a rubber board 2, a rotating shaft 3, a hoop board 4, a retaining ring 5, an adjusting hole 6, a bolt 7, teeth 8, a baffle 9, a nut 10, a neck section 11, an inner sliding sleeve 12, an elastic sheet 13, an outer sliding sleeve 14, a straight groove 15 and a locking device 16.

Detailed Description

It should be noted at the outset that the discussion of any embodiment of the present invention is illustrative only and is not intended to suggest that the scope of the present disclosure (including the claims) is limited to these examples; there are many other variations of the different aspects of the invention as described above which are not provided in detail for the sake of brevity. Accordingly, other embodiments are within the scope of the following claims.

In addition, the drawings in the following description are only preferred embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on the drawings without inventive efforts. In addition, the present invention is not limited to these embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. is generally the orientation or positional relationship based on the coordinate system shown in fig. 1 (i.e., the front view), and the set of coordinate systems will not rotate with it when discussing other directional views. Rather, the foregoing directional terms are used merely to facilitate describing the present application and to simplify the description, and they do not indicate or imply that the apparatus or component being referred to must have a particular orientation or be constructed and operated in a particular orientation without having been stated to the contrary or otherwise specified, and therefore should not be considered limiting of the scope of the present application; further, the terms "inner and outer" with respect to orientation refer to the inner and outer relative to the profile of the respective component itself.

Furthermore, spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", etc. are used to define the components, and are only used to facilitate distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, especially, have no special meaning in "main, secondary" or arrangement order, and therefore, should not be construed as limiting the scope of the present application.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 4, the structure of the invention is generally circular in shape, the basic part of which comprises a ring-shaped band body and locking means 16, the band body having elasticity, generally suggested to be made of spring steel. Locking device 16 sets up the one end of clitellum two side edges at the clitellum other end are provided with tooth 8, locking device 16 include the sleeve and with tooth 8 matched with hand is twisted nut 10, the telescopic internal diameter is greater than the clitellum and is provided with the width of tooth 8 one end (because the clitellum has thickness and width, the clitellum is provided with the width of tooth 8 one end and is the biggest distance between the both sides tooth 8 shown in figure 3), hand is twisted nut 10 and sleeve and is rotated and be connected and the coincidence of axis between them fixedly connected with is used for hanging the buckle 5 of safe reserve rope on the clitellum.

Make the operation personnel can be through manual mode with the clitellum cover on newly-built electric power circuit bare pole after setting up like this, later only with manual alright firmly lock the clitellum on newly-built electric power circuit bare pole, the operation is got up and is need not practical specialized tool, simple quick, safe and reliable, the dismouting is all very convenient.

In addition, the buckle ring 5 used for hanging the safety backup rope is fixedly connected to the ring belt, so that the operation condition that the previous operator can only fix the pole climbing device (foot hook) on the bare pole of the newly-built power line is improved. The safety device has the advantages that the working personnel can have unconscious body shaking during actual construction operation, so that the two legs are driven to do subconscious gravity center adjustment action, the foot hooks are driven to move, the potential safety hazard of unstable grasping force is generated, and after the working personnel climb to the operation height, reliable hanging points of the safety backup rope can be arranged on the bare rod of the newly-built power line, so that the risk of accidents during construction of the working personnel is avoided.

In addition, the invention can be further provided with a rubber plate 2 on the inner side surface of the annular belt. The arrangement is such that the device of the invention can be more firmly fixed on the smooth bare pole of a newly-built power line through the rubber plate 2 which increases the friction force.

In addition, as shown in fig. 1, the number of the rubber plates 2 may be set to 4 or more and the rubber plates may be arranged at intervals in the longitudinal direction of the endless belt.

Due to the arrangement, the phenomenon that the rubber plate 2 is easily layered or even separated from the girdle after long-term use, especially after long-term frequent change of the locking diameter, caused by the fact that the turning radius of the rubber plate 2 is different from the turning radius of the girdle, can not occur in the device, so that the reliability of the device is improved, and the safety of personnel operation is ensured.

In addition, as shown in fig. 1, the girdle can further comprise a hoop plate 4 and an insert plate 1, wherein one end of the insert plate 1 is provided with teeth 8, the other end of the insert plate is in rotary connection with one end of the hoop plate 4, the rotary axis is vertical to the length direction of the girdle, and the other end of the hoop plate 4 is fixedly connected with the sleeve. Specifically, the hoop plate 4 and the inserting plate 1 are connected through the rotating shaft 3.

The ring belt of the device is divided into two sections which can be opened and closed, because the ring belt is usually made of an elastic metal sheet which is not easy to bend on one hand, and fatigue fracture is easy to occur after the ring belt is repeatedly bent to a large extent so as to generate potential safety hazards, after the ring belt is divided into the two sections which can be opened and closed, the ring belt can be opened to a large extent to hoop a newly-built power line bare rod with a larger diameter, and then the ring belt can be conveniently closed to perform locking operation, so that the operation efficiency of installation is improved, and the potential safety hazards of repeated and large-scale opening and closing can be avoided.

In addition, the invention can further ensure that the length ratio of the hoop plate 4 to the inserting plate 1 is 1: 1.2.

The arrangement of the device enables the opening and closing range of the device to be increased as much as possible, the annular belt is divided into two sections of belt plates with equal length under a normal state, the opening and closing range can be maximized, and therefore the device is suitable for newly-built bare poles of power lines with different diameters, but due to repeated design and research, when the length ratio of the hoop plate 4 to the insertion plate 1 is set to be 1:1.2, the sufficient opening and closing range is ensured, the insertion plate 1 is ensured to have sufficient adjustment allowance, and the structure is more reasonable.

As shown in fig. 1, the present invention may further include a hand nut 10 disposed at one end of the sleeve, and the other end of the sleeve is fixedly connected to the band 4.

Due to the arrangement, the hand-screwed nut 10 of the device is positioned far away from the girdle after the girdle is closed, so that an operator can more conveniently perform screwing and unscrewing operations on the hand-screwed nut 10, the operation time for installing the device can be prolonged, the sufficient hand-screwing force can be ensured, and the locking firmness is ensured.

In addition, the invention can further make the inner diameter of the sleeve be 1.05 times of the width of the end of the ring belt provided with the teeth 8.

The arrangement ensures that the inserting plate 1 of the device is relatively less prone to shaking after being inserted into the sleeve, the sleeve with the inner diameter ensures that the inserting plate 1 can be quickly and conveniently inserted into the sleeve, and compared with an excessively loose sleeve, the inserted inserting plate 1 is more stable and cannot largely shake in the sleeve, particularly, after the annular belt is locked, the inserting plate 1 is necessarily inclined towards the inner ring direction, at the moment, if the inclination is too large, the matching acting force between the teeth 8 and the hand-screwed nut 10 is unbalanced, the teeth 8 and the hand-screwed nut 10 are abraded too much on one side in a long time, the service life of the device is shortened, and on the other hand, the teeth 8 are prone to being cracked due to unbalanced stress.

As shown in fig. 2 to 4, the present invention may further provide that one end of the sleeve is provided with a neck section 11 rotatably connected to the hand nut 10, the end of the neck section 11 is provided with a baffle 9, and a straight groove 15 for passing through the insert plate 1 is provided along the axial direction of the neck section 11.

The arrangement makes the structure of the device of the invention more compact and reasonable, the structure only needs to turn the necking section 11 which can be sleeved with the hand-screwed nut 10 in the machining process, and then the flaring tool is used to expand the necking section 11 into the baffle 9 which can prevent the hand-screwed nut from falling off after the hand-screwed nut 10 is sleeved in the assembly operation, so that the device has simple integral manufacturing process, less parts to be manufactured, low cost, compact and reasonable structure, high working reliability, contribution to the popularization of the range and higher economic and practical value.

In addition, as shown in fig. 2 to 4, the present invention can further make the sleeve include an outer sliding sleeve 14 and an inner sliding sleeve 12, the inner diameter of the outer sliding sleeve 14 is slightly larger than the outer diameter of the inner sliding sleeve 12, the outer sliding sleeve 14 and the inner sliding sleeve 12 are connected in a sliding manner along the axes of the two, and a fixing device for fixing the relative position between the outer sliding sleeve 14 and the inner sliding sleeve 12 is arranged between the two.

The arrangement is characterized in that the sleeve of the device has an adjusting function, because the process of locking the plugboard 1 by the hand-screwed nut 10 is a relatively slow process, in order to improve the speed of the locking operation, the moving distance of the plugboard 1 in the hand-screwed nut 10 is reduced as much as possible, and the moving distance of the plugboard 1 in the hand-screwed nut 10 is not a fixed value due to the fact that the plugboard 1 can move in the hand-screwed nut 10 for newly-built power line bare rods with different diameters, so that the length of the sleeve is adjusted, and the moving distance of the plugboard 1 in the hand-screwed nut 10 can be reduced as much as possible by quickly adjusting the length of the sleeve when the newly-built.

Finally, as shown in fig. 2, the invention can further make the fixing device comprise an adjusting hole 6 arranged on the side wall of the outer sliding sleeve 14 and a telescopic pin arranged on the side wall of the inner sliding sleeve 12, wherein the axis of the telescopic pin is perpendicular to the outer side surface of the flashboard 1.

Specifically, the telescopic pin of this embodiment is the bolt 7 disposed on the inner sliding sleeve 12, the bolt 7 passes through the corresponding hole on the inner sliding sleeve 12, and the bottom of the bolt 7 is disposed with the elastic sheet 13 fixed on the inner wall of the inner sliding sleeve 12, so that the bolt 7 can be stretched on the surface of the side wall of the inner sliding sleeve 12, and the relative position between the outer sliding sleeve 14 and the inner sliding sleeve 12 can be adjusted and fixed by matching with the adjusting hole 6 having the same diameter as the bolt 7. In addition, other securing means such as snaps may be applied thereto.

The arrangement makes the structure of the device of the invention more compact, because the inserting plate 1 is in a flat and long shape, and compared with the inner space of the cylindrical sleeve, the inner side and the outer side of the inserting plate have larger redundant space, and the redundant space can be just provided with a fixing device which can be quickly adjusted, such as a telescopic pin, and finally the structure of the device is more compact and reasonable.

Finally, it is emphasized that the embodiments described above are merely some, but not all embodiments of the invention, and that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention as defined by the claims. Any changes obvious to those skilled in the art from the embodiments of the present invention, which are made under the design idea of the present invention, are within the protection scope of the present invention.