阅读说明：本技术 一种配电自动化改造装置 (Distribution automation reforms transform device ) 是由 黄映风 劳嘉雯 于 2020-05-15 设计创作，主要内容包括：本发明公开了一种配电自动化改造装置,包括：固定板,其两侧对称设置有侧向连接位,其下端设置有底部连接位；所述固定板上还设置有横向沿伸的旋转铰接位,所述侧向连接位位于所述旋转铰接位的上部,所述底部连接位位于所述旋转铰接位的下部；承托件,其一端与所述固定板上的旋转铰接位进行铰接且另一端能够绕着所述旋转铰接位发生相对旋转；以及,支撑件,其一端可拆卸连接在所述承托件的外端上,另一端可拆卸连接在所述固定板的侧向连接位或者底部连接位上,并能够与所述固定板以及承托件之间共同形成三角稳定结构。本发明通过外挂装配的方式将DTU智能终端安装在输配电气单元上,不受现场的场地限制,且安装过程灵活快捷。(The invention discloses a power distribution automation transformation device, which comprises: the two sides of the fixed plate are symmetrically provided with lateral connecting positions, and the lower end of the fixed plate is provided with a bottom connecting position; the fixed plate is also provided with a rotary hinge position extending transversely, the lateral connecting position is positioned at the upper part of the rotary hinge position, and the bottom connecting position is positioned at the lower part of the rotary hinge position; one end of the supporting piece is hinged with the rotary hinge joint on the fixed plate, and the other end of the supporting piece can rotate around the rotary hinge joint; and one end of the supporting piece is detachably connected to the outer end of the bearing piece, the other end of the supporting piece is detachably connected to the lateral connecting position or the bottom connecting position of the fixing plate, and a triangular stable structure can be formed between the supporting piece and the fixing plate. The DTU intelligent terminal is installed on the transmission and distribution electrical unit in a plug-in assembly mode, is not limited by a field, and is flexible and rapid in installation process.)

1. The utility model provides a distribution automation reforms transform device which characterized in that: the distribution automation transformation device (100) comprises,

the two sides of the fixed plate (101) are symmetrically provided with lateral connecting positions, and the lower end of the fixed plate is provided with a bottom connecting position; the fixed plate (101) is also provided with a rotary hinge position extending transversely, the lateral connecting position is positioned at the upper part of the rotary hinge position, and the bottom connecting position is positioned at the lower part of the rotary hinge position;

a supporting piece (102), one end of which is hinged with the rotary hinge position on the fixed plate (101) and the other end of which can rotate relatively around the rotary hinge position; and the number of the first and second groups,

and one end of the supporting piece (103) is detachably connected to the outer end of the supporting piece (102), the other end of the supporting piece is detachably connected to the lateral connecting position or the bottom connecting position of the fixing plate (101), and a triangular stable structure can be formed between the supporting piece (103) and the fixing plate (101) and between the supporting piece (102).

2. The distribution automation retrofit device of claim 1 wherein: the supporting piece (102) comprises a plurality of supporting rods (102a) which are hinged with the rotary hinge positions on the fixing plate (101) one by one and connecting rods (102b) which are uniformly connected with the outer ends of the supporting rods (102 a);

one end of the supporting piece (103) is detachably connected with the lateral connecting position or the bottom connecting position of the fixing plate (101), and the other end of the supporting piece is detachably connected with the connecting rod (102b) and can form a triangular stable structure.

3. The distribution automation retrofit device of claim 2 wherein: the cross section of the connecting rod (102b) is circular, the outer diameter of any cross section of the connecting rod (102b) is the same, and the outer diameter of the connecting rod is larger than the thickness of the bearing rod (102 a).

4. The distribution automation transformation apparatus of claim 2 or 3, characterized in that: the supporting piece (103) comprises a rod body (103a), a clamping ring (103b) fixed at one end of the rod body (103a) and a connector (103c) fixed at the other end of the rod body (103 a);

the inner part of the clamping ring (103b) is provided with a first bayonet (103b-1) matched with the outer diameter of the joint rod (102b), the outer edge of the clamping ring (103b) is provided with a first notch (103b-2), and the minimum distance of the first notch (103b-2) is smaller than the outer diameter of the joint rod (102b) and larger than the thickness of the bearing rod (102 a); the clamping ring (103b) can be sleeved on the connecting rod (102b) through a first bayonet (103 b-1);

the connecting head (103c) comprises an accommodating ring (103c-1) and a rotating disc (103 c-2);

the accommodating ring (103c-1) is positioned at the end part of the rod body (103a), a second bayonet (103c-11) is arranged in the accommodating ring, a second notch (103c-12) is formed in the outer edge of the accommodating ring, the minimum distance of the second notch (103c-12) is smaller than the inner diameter of the second bayonet (103c-11), and an annular groove (103c-13) cut off by the second notch (103c-12) is formed in the inner side wall of the second bayonet (103 c-11);

the peripheral profile of the rotating disk (103c-2) is matched with the inner profile of the annular groove (103c-13), the rotating disk (103c-2) is embedded in the annular groove (103c-13) and can rotate in the annular groove (103 c-13); the outer edge of the rotating disc (103c-2) is provided with an inwards concave U-shaped opening (103 c-21);

a hooking shaft (101b) with the outer diameter matched with the width of the U-shaped opening (103c-21) is arranged on the lateral connecting position, and a pressed shaft (101c) which extends along the width direction of the fixing plate (101) and has the outer diameter matched with the width of the U-shaped opening (103c-21) is arranged on the bottom connecting position;

the rotating disc (103c-2) can enable the opening direction of the U-shaped opening (103c-21) to be consistent with that of the second bayonet (103c-11) through rotation to form a locking opening (K), and can be clamped on the pressed shaft (101c) through the locking opening (K);

the rotating disc (103c-2) can rotate to enable the opening direction of the U-shaped opening (103c-21) to be opposite to that of the second bayonet (103c-11), so that the opening direction and the second bayonet (103c-11) jointly enclose a closed locking hole (S), and the locking hole (S) can be sleeved on the hook hanging shaft (101 b).

5. The distribution automation retrofit device of claim 4 wherein: the outer end of the hook shaft (101b) is provided with a thread section (101 b-1);

when the connecting head (103c) is sleeved on the hook hanging shaft (101b) through the locking hole (S), the threaded section (101b-1) can be connected with a limiting nut (101 b-2).

6. The distribution automation transformation apparatus of any of claims 2, 3 or 5, wherein: screw holes (102b-1) are further formed in two ends of the connecting rod (102b), and limiting bolts (102b-2) can be further connected into the screw holes (102 b-1).

7. The distribution automation retrofit device of claim 4 wherein: the rotating disc (103c-2) comprises a disc body (103c-22) which is cut off by a U-shaped opening (103c-21) and a limiting ring (103c-23) which is arranged on the periphery of the disc body (103c-22), and the thickness of the limiting ring (103c-23) is larger than that of the disc body (103 c-22);

the annular groove (103c-13) comprises a first annular area (A) matched with the limiting ring (103c-23) and a first annular area (B) matched with the outer edge of the disc body (103 c-22).

8. The distribution automation retrofit device of claim 7 wherein: the supporting body is formed by the rod body (103a), the clamping ring (103b) and the accommodating ring (103c-1) together, the supporting body is of a two-piece type and comprises a pair of supporting half bodies (Z) with symmetrical structures, and concave annular half grooves (Z-1) are formed in opposite surfaces of the two supporting half bodies (Z) corresponding to the accommodating ring (103 c-1);

when the two support half bodies (Z) are spliced together to form the support body, two annular half grooves (Z-1) which are opposite to each other can jointly enclose an annular groove (103 c-13).

9. The distribution automation retrofit device of claim 8 wherein: the two support half bodies (Z) are fixedly connected through a transverse screw (103d) after being jointly spliced to form a support main body.

10. The distribution automation transformation device of any one of claims 2, 3, 5 or 7 to 9, wherein: the fixing plate (101) is internally concave-formed with a receiving groove (101a) corresponding to each supporting rod (102a), so that the fixing plate (101) forms a periodic concave-convex structure;

the rotary hinge positions are transversely arranged at the bottom of each accommodating groove (101a), and one end of each bearing rod (102a) is hinged with the bottom of the corresponding accommodating groove (101a) and can be embedded into the accommodating groove (101a) in a rotary mode.

Technical Field

The invention relates to the technical field of distribution automation, in particular to a distribution automation transformation device.

Background

The existing ring main unit has different installation positions according to the distribution condition of the load; according to the operational life, the kind of looped netowrk cabinet also has great difference, and some looped netowrk cabinet switches own possess electrical operation mechanism and CT, need not reform transform and can directly carry out automatic transformation, nevertheless often because the looped netowrk cabinet peripheral space is not enough, can't directly at the outdoor vertical DTU terminal of the other extension foundation installation of looped netowrk cabinet, cause some looped netowrk cabinets because the restriction in peripheral space can't carry out automatic transformation. The existing reconstruction process is generally to install a DTU terminal on a new extension foundation, the reconstruction time is long, the manufacturing cost is high, and the economical efficiency of reconstruction is not satisfied. Considering that the sizes of outdoor vertical DTU terminals of different manufacturers are not very different, a suspension type installation mode can be adopted, the installation space of the DTU terminal is saved, the transformation time is shortened, and the automatic access requirement of the ring main unit is met by the mode of transforming the comprehensive difficulty and the lowest manufacturing cost.

The traditional installation method of the DTU terminal meets the national network typical setting requirements, the installation program is standardized, and the DTU terminal is firmer on the basis of the DTU terminal. However, due to the fact that the DTU terminal foundation is newly built, the periphery of the ring main unit can be installed only by needing larger space, the foundation extension cost is high, the construction period is long, the foundation extension is difficult to complete within the automatic modification construction period, and the modification project investment is increased.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the problems occurring in the prior art.

Therefore, one of the objects of the present invention is to provide a distribution automation transformation device, which can solve the defects of difficult automation transformation and high cost in the prior art.

In order to solve the technical problems, the invention provides the following technical scheme: a distribution automation retrofit device, comprising: the two sides of the fixed plate are symmetrically provided with lateral connecting positions, and the lower end of the fixed plate is provided with a bottom connecting position; the fixed plate is also provided with a rotary hinge position extending transversely, the lateral connecting position is positioned at the upper part of the rotary hinge position, and the bottom connecting position is positioned at the lower part of the rotary hinge position; one end of the supporting piece is hinged with the rotary hinge joint on the fixed plate, and the other end of the supporting piece can rotate around the rotary hinge joint; and one end of the supporting piece is detachably connected to the outer end of the bearing piece, the other end of the supporting piece is detachably connected to the lateral connecting position or the bottom connecting position of the fixing plate, and a triangular stable structure can be formed between the supporting piece and the fixing plate.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the supporting piece comprises a plurality of supporting rods which are hinged with the rotary hinge positions on the fixing plate one by one and connecting rods which are uniformly connected with the outer ends of the supporting rods; one end of the supporting piece is detachably connected with the lateral connecting position or the bottom connecting position of the fixing plate, and the other end of the supporting piece is detachably connected with the connecting rod and can form a triangular stable structure.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the cross section of the connecting rod is circular, the outer diameter of any cross section of the connecting rod is the same, and the outer diameter of the connecting rod is larger than the thickness of the bearing rod.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the supporting piece comprises a rod body, a clamping ring fixed at one end of the rod body and a connector fixed at the other end of the rod body; the inner part of the clamping ring is provided with a first bayonet matched with the outer diameter of the connecting rod, the outer edge of the clamping ring is provided with a first notch, and the minimum distance of the first notch is smaller than the outer diameter of the connecting rod and larger than the thickness of the bearing rod; the clamping ring can be sleeved on the connecting rod through a first bayonet; the connector comprises an accommodating ring and a rotating disc; the accommodating ring is positioned at the end part of the rod body, a second bayonet is arranged in the accommodating ring, a second notch is arranged at the outer edge of the accommodating ring, the minimum distance of the second notch is smaller than the inner diameter of the second bayonet, and an annular groove cut off by the second notch is arranged on the inner side wall of the second bayonet; the peripheral contour of the rotating disc is matched with the inner contour of the annular groove, and the rotating disc is embedded in the annular groove and can rotate in the annular groove; the outer edge of the rotating disc is provided with an inwards concave U-shaped opening; the lateral connecting position is provided with a hook shaft with the outer diameter matched with the width of the U-shaped opening, and the bottom connecting position is provided with a pressed shaft which extends along the width direction of the fixing plate and has the outer diameter matched with the width of the U-shaped opening; the rotating disc can enable the opening direction of the U-shaped opening to be consistent with that of the second bayonet through rotation so as to form a locking opening (K), and the rotating disc can be clamped on the pressed shaft through the locking opening (K); the rotating disc can enable the opening direction of the U-shaped opening to be opposite to that of the second bayonet through rotation, so that the U-shaped opening and the second bayonet are jointly enclosed to form a closed locking hole, and the U-shaped opening and the second bayonet can be sleeved on the hook hanging shaft through the locking hole.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the outer end of the hook hanging shaft is provided with a thread section; when the connector passes through the locking hole is sleeved on the hook hanging shaft, the thread section can be also connected with a limiting nut.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: screw holes are further formed in the two ends of the connecting rod, and limiting bolts can be further connected into the screw holes.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the rotating disc comprises a disc body cut off by a U-shaped opening and a limiting ring arranged on the periphery of the disc body, and the thickness of the limiting ring is greater than that of the disc body; the annular groove comprises a first annular area matched with the limiting ring and a first annular area matched with the outer edge of the disc body.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the supporting body is of a two-piece type and comprises a pair of supporting half bodies with symmetrical structures, and concave annular half grooves are formed in opposite surfaces, corresponding to the accommodating ring, of the two supporting half bodies; when the two support half bodies are spliced together to form the support main body, the two annular half grooves which are opposite to each other can jointly enclose the annular groove.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the two support half bodies are fixedly connected through transverse screws after being jointly spliced to form a support main body.

As a preferable aspect of the distribution automation transformation apparatus of the present invention, wherein: the fixing plate is internally concave-formed with accommodating grooves corresponding to the bearing rods, so that the fixing plate forms a periodic concave-convex structure; the rotary hinge positions are transversely arranged at the bottoms of the storage grooves, one end of each bearing rod is hinged with the bottom of the corresponding storage groove, and the bearing rods can be embedded into the storage grooves in a rotating mode.

The invention has the beneficial effects that: the DTU intelligent terminal is installed on the transmission and distribution electrical unit in a plug-in assembly mode, is not limited by the site, and is flexible and quick in installation process, so that automatic transformation of equipment is convenient and simple, and transformation time and operation period are shortened.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a use scenario diagram of a distribution automation transformation device.

Fig. 2 is an installation cross-sectional view of a distribution automation transformation apparatus and a partial detailed view thereof.

Fig. 3 is an overall structural view of the distribution automation transformation device and a partial detailed view thereof.

Fig. 4 is a structural view of the first embodiment.

Fig. 5 is a structural view of the second embodiment.

Fig. 6 is a structural view of the third embodiment.

Fig. 7 is a structural view of a housing state of the mounting unit and a partial detailed view thereof.

Fig. 8 is an exploded view of a support member and its partial detail.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Referring to fig. 1 and 5, an embodiment of the present invention provides a distribution automation transformation apparatus 100, which can be used for field automation transformation of an existing ring main unit, that is, a DTU intelligent terminal 300 is assembled on an opening and closing station 200 where the ring main unit is located through the distribution automation transformation apparatus 100, so that equipment transformation is convenient and simple, and an installation process is flexible and fast.

The distribution automation transformation device 100 includes a fixing plate 101, a support member 102 having one end hinged to the fixing plate 101 and the other end capable of rotating relatively, and a support member 103 detachably connected between the fixing plate 101 and the support member 102.

The fixing plate 101 is used for connecting and fixing the side wall of the DTU intelligent terminal 300 and the side wall of the switching station 200 where the ring main unit to be connected is located; lateral connecting positions are symmetrically arranged on two sides of the fixing plate 101, and a bottom connecting position is arranged at the lower end of the fixing plate 101; the fixed plate 101 is further provided with a horizontally extending rotary hinge position, the lateral connection position is located at the upper part of the rotary hinge position, and the bottom connection position is located at the lower part of the rotary hinge position.

The support member 102 is used for supporting the bottom of the DTU intelligent terminal 300, and may be a plate-shaped structure or a plurality of rod-shaped structures arranged at intervals. One end of the supporting member 102 is hinged to the rotary hinge position of the fixing plate 101 and the other end can rotate relatively around the rotary hinge position.

The supporting member 103 is used for keeping the structure of the supporting member 102 stable, one end of the supporting member is detachably connected to the outer end of the supporting member 102, the other end of the supporting member can be selectively detachably connected to the lateral connecting position or the bottom connecting position of the fixing plate 101, and can form a triangular stable structure together with the fixing plate 101 and the supporting member 102, and when the triangular stable structure is formed, the supporting member 102 extends outwards along the horizontal direction.

Based on the above, DTU intelligent terminal 300 can install fast on the switching station 200 outer wall of treating the installation, installation transformation process convenient and fast.

Further, as shown in fig. 3, the supporting member 102 is a plurality of rod-shaped structures arranged at intervals, and specifically, the supporting member 102 includes a plurality of supporting rods 102a hinged to the rotary hinge positions on the fixing plate 101 one by one, and an engaging rod 102b engaging with an outer end of each supporting rod 102a in a transverse direction.

One end of the supporting member 103 is detachably connected to the lateral connection position or the bottom connection position of the fixing plate 101, and the other end is detachably connected to the coupling rod 102b, and a triangular stable structure can be formed. That is, the outer end of the supporting member 103 can be connected to the joint rod 102b, and the inner end thereof can be fixed to both the upper portion (lateral connection position) and the lower portion (bottom connection position) of the rotation hinge position, and both fixing methods can form a triangular stable structure:

first, as shown in fig. 5, when the inner end of the supporting member 103 is fixed to the lateral connecting position, the supporting member 103 has a function of pulling in a diagonal direction, and is subjected to a pulling force, and can be prevented from falling down by pulling the overhanging supporting member 102. In this embodiment, the supporting members 103 are preferably connected to both sides of the fixing plate 101 to prevent the collision and influence on the shelf installation stroke structure of the DTU smart terminal 300.

Secondly, as shown in fig. 4, when the inner end of the supporting member 103 is fixed on the bottom connecting position, the supporting member 103 has a function of pressing and propping, and is pressed and can prevent the overhanging supporting member 102 from turning downwards and falling. In this embodiment, the supporting member 103 may be arranged in a plurality of numbers in a lower portion of the supporting member 103 to improve structural stability and pressure resistance.

Further, as shown in fig. 3, the fixing plate 101 is formed with receiving grooves 101a corresponding to the respective support rods 102a, and the receiving grooves 101a are arranged at intervals, so that the fixing plate 101 forms a periodic concave-convex structure.

The rotation hinge portions are transversely provided at the bottom of each receiving groove 101a, and one end of each support rod 102a is hinged to the bottom of the corresponding receiving groove 101a and can be rotatably inserted into the receiving groove 101 a. Therefore, the housing groove 101a of the present invention has two functions: firstly, the fixing plate 101 forms a periodic concave-convex structure, so that the structural strength and the disturbance resistance of the fixing plate 101 can be enhanced; and each accommodating groove 101a can accommodate a corresponding bearing rod 102a, so that the space can be saved when the mounting unit 100 is transported or carried, and the bearing rods can be directly stacked layer by layer when being stocked.

Preferably, the upper end of the receiving groove 101a is through, and the length of the receiving groove 101a is not greater than the length of the supporting rod 102a, so that after the supporting rod 102a is rotatably inserted into the receiving groove 101a, the transverse engaging rod 102b can be just fastened on the top of the fixing plate 101, thereby ensuring the complete insertion and receiving of the supporting rod 102 a.

Further, the cross section of the joint rod 102b is circular, and the outer diameter of any cross section of the joint rod 102b is the same and is larger than the thickness of the bearing rod 102 a.

Referring to fig. 7 and 8, the supporting members 103 may be provided with a plurality of supporting members having the same size, and each supporting member 103 includes a rod 103a, a snap ring 103b fixed to one end of the rod 103a, and a connector 103c fixed to the other end of the rod 103 a.

As shown in fig. 7, the inner part of the snap ring 103b has a first bayonet 103b-1 matched with the outer diameter of the adapter rod 102b, and the outer edge of the snap ring 103b is provided with a first notch 103b-2 communicated with the first bayonet 103b-1, the minimum distance between the first notches 103b-2 is smaller than the outer diameter of the adapter rod 102b and larger than the thickness of the bearing rod 102 a; the snap ring 103b can be sleeved on the connecting rod 102b through the first bayonet 103 b-1. When the first notch 103b-2 faces the length direction of the bearing rod 102a inwards, the snap ring 103b sleeved on the connecting rod 102b can slide along the length direction of the connecting rod 102b to adjust the transverse position (the arrangement of the first notch 103b-2 can avoid the influence of the stroke of the bearing rod 102a on the snap ring 103b in the sliding process, and cannot cause the snap ring 103b to be separated from the connecting rod 102 b.

The connecting head 103c comprises a receiving ring 103c-1 at the end of the rod 103a and a rotating disc 103c-2 rotatably disposed inside the receiving ring 103 c-1.

As shown in fig. 8, the receiving ring 103c-1 has a second notch 103c-11 therein, the inner sidewall of the second notch 103c-11 is a major arc path, and the outer edge of the receiving ring 103c-1 is provided with a second notch 103 c-12; the minimum distance between the second notches 103c-12 is smaller than the inner diameter of the second bayonet 103c-11, and the inner side wall of the second bayonet 103c-11 is provided with the annular groove 103c-13 which is cut off by the second notches 103c-12, so the path trend of the annular groove 103c-13 is also a major arc.

The peripheral profile of the rotating disk 103c-2 fits within the inner profile of the annular groove 103 c-13; the rotating disk 103c-2 is embedded in the annular groove 103c-13 and can rotate around the axis of the rotating disk 103c-2 in the annular groove 103 c-13; the outer edge of the rotating disc 103c-2 is provided with an inward U-shaped opening 103 c-21. The U-shaped opening 103c-21 is a U-shaped notch structure, and the notch width of the U-shaped opening 103c-21 is not larger than the minimum distance of the second notch 103 c-12.

The lateral connection positions (i.e., both sides of the fixing plate 101) are provided with hooking shafts 101b having an outer diameter fitted to the width of the U-shaped openings 103c-21 and extending laterally outward, and the bottom connection position (i.e., the lower end of the fixing plate 101) is provided with a pressing shaft 101c extending in the width direction (lateral direction) of the fixing plate 101 and having an outer diameter fitted to the width of the U-shaped openings 103c-21 (the pressing shaft 101c may be fixed to the bottom of the fixing plate 101 by a connection post 101 d).

As shown in FIG. 7, the rotary plate 103c-2 can rotate by itself to make the opening direction of the U-shaped opening 103c-21 coincide with that of the second bayonet 103c-11 to form a locking opening K which is opened outwards, and can be clamped on the pressed shaft 101c through the locking opening K to form a pressing fixation. Preferably, the pressure shaft 101c may also be provided with an annular groove corresponding to the locking opening K, and the rotary disk 103c-2 can be engaged in the annular groove through the locking opening K thereof to prevent lateral sliding.

The rotating disc 103c-2 can make the opening direction of the U-shaped opening 103c-21 opposite to that of the second bayonet 103c-11 through the rotation of the rotating disc, so that the U-shaped opening 103c-21 and the second bayonet 103c-11 can jointly enclose a closed locking hole S, and can be sleeved on the hook shaft 101b through the locking hole S to form a pulling fixation.

Further, as shown in fig. 3, the outer end of the hooking shaft 101b is provided with a thread section 101 b-1. When the connector 103c is sleeved on the hooking shaft 101b through the locking hole S, the threaded section 101b-1 at the outer end of the hooking shaft 101b can be further connected with the limit nut 101b-2, and the connector 103c can be prevented from being laterally separated through the lateral limit of the limit nut 101 b-2.

The two ends of the connecting rod 102b can be further provided with screw holes 102b-1, and limit bolts 102b-2 can be further connected in the screw holes 102b-1 to form lateral limit to the snap ring 103 b.

Further, as shown in FIG. 8, the rotary plate 103c-2 comprises a plate body 103c-22 cut by the U-shaped opening 103c-21 and a limiting ring 103c-23 arranged on the periphery of the plate body 103c-22, wherein the thickness of the limiting ring 103c-23 is greater than that of the plate body 103 c-22; the annular groove 103c-13 includes a first annular region a that mates with the retaining ring 103c-23 and a first annular region B that mates with the outer edge of the disk 103 c-22.

Further, as shown in fig. 8, the rod body 103a, the snap ring 103b and the accommodating ring 103c-1 together form a supporting main body, the supporting main body is set to be of a two-piece type, and includes a pair of supporting half bodies Z with symmetrical structures, and the opposite surfaces of the two supporting half bodies Z corresponding to the accommodating ring 103c-1 are both provided with concave annular half grooves Z-1; when the two support halves Z are spliced together to form the support body, two mutually opposite annular half grooves Z-1 can jointly enclose the annular groove 103 c-13.

The two support half bodies Z are fixedly connected through a plurality of transverse screws 103d after being jointly spliced to form a support main body, and the support half bodies Z are provided with corresponding screw holes.

Based on the above, as shown in fig. 5, when the volume of the DTU smart terminal 300 is small, the support members 103 may be disposed on both sides of the fixing plate 101 to be used as diagonal members, that is: the snap ring 103b is sleeved on the connecting rod 102b, and the rotating disk 103c-2 rotates by itself to make the opening direction of the U-shaped opening 103c-21 opposite to the second bayonet 103c-11, so that the U-shaped opening 103c-21 and the second bayonet 103c-11 together enclose a closed locking hole S and are sleeved on the hook hanging shaft 101b through the formed locking hole S.

As shown in fig. 4, when the volume of the DTU intelligent terminal 300 is large (when the width of the DTU intelligent terminal is larger than the lateral width of the support 102), if the support member 103 is still disposed on both sides of the fixing plate 101, the DTU intelligent terminal 300 will be prevented from resting on the support 102, and therefore, the support member 103 can be disposed at the bottom of the support 102 to be used as a compression bar, that is: the snap ring 103b is fitted over the joint rod 102b, and the rotary disk 103c-2 makes the opening direction of the U-shaped port 103c-21 coincide with the opening direction of the second bayonet 103c-11 by its own rotation to form a locking opening K which is opened outward and is snapped onto the pressure-receiving shaft 101c through the formed locking opening K.

Of course, as shown in fig. 6, the present invention may also be configured with supporting members 103 on both sides of the fixing plate 101 and at the bottom of the supporting member 102, and the supporting members are combined with diagonal tension rods and compression rods to enhance the strength of the structure.

Further, as shown in fig. 2, a reinforcing plate 104 is provided on an inner side wall of the opening/closing station 200 to be installed. The reinforcing plate 104, the side wall of the switching station 200, the fixing plate 101, and the side wall of the DTU smart terminal 300 are sequentially adhered to each other, and are fixed by fastening bolts 105. In the invention, threading holes C corresponding to each other are respectively arranged on the side wall of the DTU intelligent terminal 300, the side wall of the switching station 200 and the fixing plate 101, and are used for threading wires between the DTU intelligent terminal 300 and a ring main unit in the switching station 200.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.