CN106151819B

CN106151819B - Electric pole meter box expansion frame

Info

Publication number: CN106151819B
Application number: CN201510260028.3A
Authority: CN
Inventors: 马金东; 李恺; 陈文佼; 方磊; 张勇; 付健; 罗冉冉; 张一豪; 任雪梅; 杨建胜; 张磊
Original assignee: State Grid Corp of China SGCC; Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2015-05-21
Filing date: 2015-05-21
Publication date: 2020-04-17
Anticipated expiration: 2035-05-21
Also published as: CN106151819A

Abstract

The invention discloses an electric pole meter box expansion frame which comprises a main frame body, wherein a main mounting hole which is penetrated through from front to back and is used for mounting an electric meter box is formed in the main frame body, a main mounting bolt is inserted into the main mounting hole, a fixing device for fixing the main frame body on an electric pole is mounted on a rear panel of the main frame body, a left sliding cavity with a left opening and a right sliding cavity with a right opening are formed in the main frame body in a stacking and spacing mode, a left sliding frame is inserted into the left sliding cavity in a sliding mode, a left mounting hole corresponding to the main mounting hole is formed in the left sliding frame, a right sliding frame is inserted into the right sliding cavity in a sliding mode, and a. One, two or three ammeter casees are installed according to the extension needs at any time, need not to add other auxiliary assembly, and it is firm, the extension is convenient with the pole, easy operation, alone just can operate, and the ammeter case is arranged neatly after the extension, pleasing to the eye, the convenience of checking meter, directly perceived, once ascends a height and can copy all ammeter casees, helps improving work efficiency.

Description

Electric pole meter box expansion frame

Technical Field

The invention relates to an electric pole meter box expansion frame.

Background

China has become a big country for electric energy production and electric energy meter production. According to the statistics of 'fast report of Chinese electric power industry statistics in 2007', in 2007, the national electricity generation amount reaches 32559 hundred million kilowatt hours, the electricity consumption of the whole society reaches 32458 million kilowatt hours, and the world is listed as the second.

The electric energy meter closely related to production and life, commonly called an electric meter, is one of key metering apparatuses for government metering supervision due to fair trade. How to ensure the delivery of accurate electric energy values to the end user then requires not only the establishment of metering base (standard) devices with accurate and reliable values, consistent with international standards, but also the establishment of reliable electric meter mounting or housing devices.

At present, an electric meter is generally installed at a wire inlet end of a user circuit through an electric meter box, and the electric meter box is generally divided into a pole hanging type and a wall hanging type according to different installation positions. With the acceleration of urbanization speed, wall-mounted electricity meter boxes are more and more popular in application. However, in urban and rural junctions, particularly in rural areas, there are not a few users who hang electric meters on electric poles. The traditional pole-hung type meter box is generally fixed on the electric pole through a U-shaped bolt, and is simple in structure and convenient to operate. But has the disadvantages that: 1. if the electric meter box needs to be additionally arranged, the electric meter boxes can be hung at different heights in the same direction of the electric pole, so that the numerical value of the electric meter at the highest position is difficult to see during meter reading; 2. if a plurality of electric meter boxes are hung on the electric pole in different directions at different heights, the ascending ladder needs to be replaced by a placing angle when one electric meter is checked, which is very troublesome; 3. because the electric pole is generally cylindrical or conical, and the U-shaped bolt can only apply a directional clamping force to the electric pole along the axial direction of the screw rod, the U-shaped bolt has weaker fixing force to the circumferential direction of the electric pole, the phenomenon that the electric meter box rotates around the electric pole is easily caused when slight external force is applied, the electric meter box vibrates when being blown by wind and rain, the stable operation of the electric meter is influenced, and the connection toughness and the safety of the connected electric wire are also seriously influenced; 4. the number of the electric meter boxes is expanded according to the method, so that the electric meter boxes are not convenient to meet the installation specification of the electric meter boxes and are not attractive; 5. when installing the ammeter case through the U-shaped bolt, need alone to control ammeter box holder and alone twist the bolt in addition, two people's cooperations just can be accomplished, are unfavorable for improving work efficiency.

Disclosure of Invention

The invention aims to solve the technical problem of providing the electric pole meter box expansion frame which is reasonable in structure, can be used for installing one, two or three electric meter boxes at any time according to expansion requirements, does not need to be additionally provided with other auxiliary equipment, is firmly fixed with an electric pole, is convenient to expand, is simple to operate, can be operated by one person, is orderly and attractive in arrangement of the electric meter boxes after expansion, is convenient and visual to read the electric meter boxes, can finish reading all the electric meter boxes by ascending at one time, and is beneficial to improving the working efficiency.

In order to solve the technical problem, the electric pole meter box expansion frame comprises a main frame body, wherein a main mounting hole which is penetrated through from front to back and used for mounting an electric meter box is arranged on the main frame body, a main mounting bolt is inserted in the main mounting hole, a fixing device used for fixing the main frame body on an electric pole is arranged on a rear panel of the main frame body, the right side of the main frame body is hinged with a right swing frame through a right hinge shaft, the right swing frame can enable an inner side plate of the main frame body to horizontally swing 180 degrees from the position which is tightly attached to a front panel of the main frame body in parallel, a right mounting hole corresponding to the main mounting hole is arranged on the right swing frame, the left side of the main frame body is hinged with a left side frame through a left hinge shaft, the left side frame can enable the inner side plate of the main frame body to horizontally swing 90 degrees from the position which is perpendicular to the front panel of the main frame body in front, the length of the left side frame is the same as the thickness of the right, the left swing frame is provided with a left mounting hole corresponding to the main mounting hole, and the left swing frame and the right swing frame are both provided with auxiliary fixing devices in locking fit with the fixing devices.

This electric pole table case extension frame realizes through swing extension structure that can install one, two or three ammeter casees according to the extension needs at any time, need not to add other auxiliary assembly, and is fixed firm, the extension is convenient with the pole, easy operation, alone just can operate, and the ammeter case is arranged neatly after the extension, pleasing to the eye, the convenience of checking meter, directly perceived, once ascends a height and can copy all ammeter casees, helps improving work efficiency.

The swing expansion structure mainly comprises a main frame body and a fixing device arranged on the main frame body. For convenience of description, the direction in which the main frame is close to the pole is referred to as rear, the corresponding direction is referred to as front, and the two sides are referred to as left and right, respectively. The main frame body rear portion passes through fixing device and installs on the pole, and the main frame body front portion installation ammeter case, right side pendulum frame, left side frame and left pendulum frame are installed respectively to the main frame body left and right sides. The main frame body is provided with a main mounting hole which is through from front to back, a main mounting bolt is inserted into the main mounting hole, and the electric meter box can be mounted on the main frame body through the main mounting hole and the main mounting bolt. The main frame body right side is through the articulated cooperation in right hinge axle and right swing frame left side, because the vertical setting of right hinge axle, consequently right swing frame can be around the relative main frame body horizontal hunting of right hinge axle. For convenience of description, the side surface of the right swing frame that swings toward the main frame when swinging forward is referred to as an inner side surface or an inner side plate, and the other side surface of the right swing frame, that is, the side surface facing away from the main frame is referred to as an outer side surface or an outer side plate. The maximum angle that the right swinging frame can swing forwards and leftwards is that the inner side surface of the right swinging frame is arranged in parallel with the front panel of the main frame body. For convenience of description, the swing angle is referred to as a starting angle, i.e. 0 degree, and the state of the right swing frame at the starting angle is referred to as a right retracted state or a right idle state. The maximum angle at which the right swing frame swings forward and rightward is such that the inner side plate of the right swing frame is flush with the front panel of the main frame, and for convenience, this swing angle is referred to as a cut-off angle. At this time, since the inner panel of the right swing frame is flush with the front panel of the main frame, the cut-off angle is 180 degrees with respect to the start angle. At this time, the right swing frame is fixed and locked with the fixing device through the auxiliary fixing device, and for convenience of description, the state is called as a right stretching state or a right working state. When the right side extends the state, not only can fix first ammeter case on the body frame body through main construction bolt, can also pass right mounting hole with the second ammeter case through the bolt alone and install on having the left rocker. Similarly, the left side of the main frame body is hinged and matched with the right side of the left swing frame through the left hinge shaft, the left frame and the left hinge shaft, and the left swing frame can swing left and right around the left hinge shaft relative to the main frame body because the left hinge shaft is vertically arranged. For convenience of description, a side surface of the left swing frame and the left side frame which swings toward the main frame when swinging forward is referred to as an inner side surface or an inner side plate, and the other side surface of the left swing frame and the left side frame, that is, a side surface facing away from the main frame is referred to as an outer side surface or an outer side plate. In this application, the left side frame sets up between left side pendulum frame right side and main frame body left side, and the left side frame left side is through the articulated cooperation of right hinge axle and left pendulum frame right side, and the left side frame right side is through left side hinge axle and main frame body left side swing cooperation. Therefore, the main frame body, the left side frame and the left swinging frame form a chain structure, and the chain structure is mainly arranged to increase the swinging range and flexibility of the left swinging frame. When the left side frame swings forwards and rightwards, the inner side plate of the left side frame can reach a position where the inner side plate is perpendicular to the front panel of the main frame body, and the maximum position of the left side plate swinging leftwards is that the inner side plate is flush with the front panel of the main frame body, so that the swinging range of the left side plate is 90 degrees. In the right retracted state, when the left swing frame swings forward and rightward, the left side plate will swing to a state where the inner side plate of the left side plate is perpendicular to the front panel of the main frame body, and for convenience of description, this state of the left side plate will be referred to as a left retracted state or a left idle state. In this application, the length of left side board equals with the thickness of right rocker, also under right contraction state and left side contraction state, the position of left hinge axle just in time with the outer panel parallel and level of right rocker, and at this moment, the biggest angle that left rocker can swing makes its medial surface and the parallel setting of hugging closely of right rocker outer panel. For convenience of description, the swing angle is referred to as a starting angle, i.e., 0 degree, and the state of the left swing frame at the starting angle is referred to as a left retracted state or a left idle state. The maximum angle of the left swing frame swinging forwards and leftwards is that the inner side plate of the left swing frame is flush with the front panel of the main frame body and the inner side plate of the left side plate, and for convenience of description, the swinging angle is called as a cut-off angle. Since the inner side plate of the left swing frame is flush with both the front plate of the main frame body and the inner side plate of the left side plate, the cut-off angle is 180 degrees with respect to the start angle. At this time, the left swing frame is fixedly locked with the fixing device through the auxiliary fixing device, and for convenience of description, the state is called a left stretching state or a left working state. When the left stretching state, not only can fix first ammeter case on the body frame body through main construction bolt, can also install on the left rocker after passing left mounting hole alone with third ammeter case through the bolt.

In summary, when only one electric meter box is provided, the electric meter box can be switched to the left contraction state and the right contraction state, and the electric meter box can be independently installed on the main frame body at the moment. When needs installation second ammeter case, stretch the state with this application switching into a left side, can install the second ammeter case on the left rocker this moment, have two ammeter casees altogether on this application this moment. When needs installation third ammeter case, with this application switching right extension state again, can install the right rocker with third ammeter case this moment on, installed three ammeter cases on this application altogether this moment, and level was arranged in proper order about these three ammeter cases, not only conveniently checks meter, and is very pleasing to the eye moreover.

The left swing frame comprises a left middle frame, a left mounting hole is formed in the left middle frame, a left upper swing arm sliding cylinder with a rightward opening is hinged to the left portion of the upper wall of the left middle frame through a vertical hinge shaft, an upper left sliding rod is slidably inserted in the upper left swing arm sliding cylinder, upper left positioning holes are correspondingly formed in the right portion of the upper left swing arm sliding cylinder, the right portion of the upper left sliding rod and the right portion of the upper wall of the left middle frame, an upper left positioning bolt is inserted in the upper left positioning holes, an upper left positioning bolt is arranged on the inner section of the upper left sliding rod, auxiliary upper left positioning holes which can be in plug-fit with the upper left positioning bolt when the inner section of the upper left sliding rod slides out to the position corresponding to the upper left positioning bolt are formed in the inner section of the upper left sliding rod, an upper left supporting hole corresponding to the upper left positioning.

The left swing frame mainly comprises two main structures, namely a left middle frame and a left upper swing arm sliding cylinder. The left middle frame is a main body structure of the left swinging frame, and one of the main functions of the left middle frame is in sliding fit with the main frame body. Because the left mounting hole of the left swing frame is arranged on the left middle frame, the left middle frame can be fixed on the main frame body through a bolt penetrating through the left mounting hole, so that the left middle frame and the main frame are integrated, and the left middle frame also plays a role in the left middle frame. The left mounting hole of the left swing frame is also arranged on the left middle frame, so that the electricity meter box can be mounted on the left middle frame through a bolt penetrating through the left mounting hole, and the effect of the left middle frame is three. The left part of the upper wall of the left middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the left upper swing arm sliding cylinder is hinged above the left middle frame through the hinge shaft, so that the left upper swing arm sliding cylinder can swing in the horizontal plane above the left middle frame. The mouth of the upper left swing arm sliding barrel is arranged at the right end and faces the main frame body. And a left upper slide bar is inserted in the left upper swing arm slide cylinder in a sliding manner, and the left upper slide bar can slide back and forth along the inner cavity of the left upper swing arm slide cylinder. The left upper swing arm sliding cylinder is provided with a left upper positioning hole at the right part, the left upper sliding rod is also provided with a left upper positioning hole at the right part, the left middle frame upper wall is also provided with a left upper positioning hole at the right part, and when the left upper sliding rod is retracted into the left upper swing arm sliding cylinder and swings to the upper part of the left middle frame, the three left upper positioning holes are aligned up and down. And a left upper positioning bolt is inserted into the left upper positioning hole, and the left upper swing arm sliding cylinder, the left upper sliding rod and the left middle frame can be fixed together through the left upper positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the left swinging frame can freely slide into the left sliding cavity or slide out of the left sliding cavity. In the left swing frame, an auxiliary left upper positioning hole is arranged on the inner section of the left upper slide bar. When the right part of the upper left slide bar slides out of the upper left swing arm sliding cylinder, the upper left positioning hole of the auxiliary upper left positioning hole is aligned with the upper left positioning hole at the end part of the upper left swing arm sliding cylinder, and the upper left slide bar can be locked in the upper left swing arm sliding cylinder through the bolt, so that the upper left slide bar and the upper left swing arm sliding cylinder are fixedly connected. In this application, be equipped with upper left supporting hole on the fixing device at body frame rear portion, upper left supporting hole interpolation is equipped with upper left supporting bolt. After the upper left swing arm sliding cylinder swings a corresponding angle towards the upper left supporting hole, the upper left supporting hole is aligned with the upper left positioning hole at the right part of the upper left sliding rod, and therefore the upper left sliding rod can be fixed on the fixing device through the upper left supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the upper left swing arm sliding cylinder and the upper left sliding rod, a left middle frame and a fixing device, wherein the left middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through a main frame body, and the connecting body formed by the upper left swing arm sliding cylinder and the upper left sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the left swing frame. For convenience of description, this triangular structure is referred to as the upper left triangular structure.

As an improvement, the left swing frame further comprises a left lower swing arm sliding barrel which is hinged to the left part of the lower wall of the left middle frame through a vertical hinge shaft and has a rightward opening, a left lower sliding rod is inserted in the left lower swing arm sliding barrel in a sliding mode, a left lower positioning hole is correspondingly formed in the right part of the left lower swing arm sliding barrel, the right part of the left lower sliding rod and the right part of the lower wall of the left middle frame, a left lower positioning bolt is inserted in the left lower positioning hole, a left lower positioning hole which can be matched with the left lower positioning bolt in an inserting mode when the inner section of the left lower sliding rod slides out to the position corresponding to the left lower positioning bolt is formed in the inner section of the left lower sliding rod, a left lower supporting hole corresponding to the left lower positioning hole in the tail end of the left lower sliding.

The left swing frame mainly comprises three main structures, wherein the first structure is a left middle frame, the second structure is a left upper swing arm sliding cylinder, and the third structure is a left lower swing arm sliding cylinder. The left part of the lower wall of the left middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the left lower swing arm sliding cylinder is hinged below the left middle frame through the hinge shaft, so that the left lower swing arm sliding cylinder can swing in the horizontal plane below the left middle frame. The opening part of the left lower swing arm sliding barrel is arranged at the right end and faces the main frame body. A left lower sliding rod is inserted in the left lower swing arm sliding cylinder in a sliding manner and can slide back and forth along the inner cavity of the left lower swing arm sliding cylinder. The left lower swing arm sliding cylinder is provided with a left lower positioning hole at the right part, the left lower sliding rod is also provided with a left lower positioning hole at the right part, the left middle frame lower wall is also provided with a left lower positioning hole at the right part, and when the left lower sliding rod retracts into the left lower swing arm sliding cylinder and swings to the lower part of the left middle frame, the three left lower positioning holes are aligned up and down. And a left lower positioning bolt is inserted into the left lower positioning hole, and the left lower swing arm sliding cylinder, the left lower sliding rod and the left middle frame can be fixed together through the left lower positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the left swinging frame can freely slide into the left sliding cavity or slide out of the left sliding cavity. In the left swing frame, an auxiliary left lower positioning hole is arranged on the inner section of the left lower sliding rod. When the right part of the left lower sliding rod slides out of the left lower swing arm sliding cylinder, the auxiliary left lower positioning hole is aligned with the left lower positioning hole at the end part of the left lower swing arm sliding cylinder, and the left lower sliding rod can be locked in the left lower swing arm sliding cylinder through a bolt, so that the left lower sliding rod and the left lower swing arm sliding cylinder are fixedly connected. In this application, be equipped with left lower support hole on the fixing device at body frame rear portion, the downthehole cartridge of left lower support has left lower support bolt. After the left lower swing arm sliding cylinder swings to a corresponding angle towards the left lower supporting hole, the left lower supporting hole is aligned with the left lower positioning hole at the right part of the left lower sliding rod, so that the left lower sliding rod can be fixed on the fixing device through the left lower supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the left lower swing arm sliding cylinder and the left lower sliding rod, the left middle frame and the fixing device, wherein the left middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through the main frame body, and the connecting body formed by the left lower swing arm sliding cylinder and the left lower sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the left swing frame. For convenience of description, the triangle structure is referred to as a lower left triangle structure. Therefore, two triangular structures, namely an upper left triangular structure and a lower left triangular structure, are formed among the main frame body, the left swing frame and the fixing device, and the structural stability of the left swing frame in the stretching state is greatly enhanced.

As an implementation mode, the right swing frame comprises a right middle frame, a right mounting hole is formed in the right middle frame, a right upper swing arm sliding cylinder with an opening facing left is hinged to the right portion of the upper wall of the right middle frame through a vertical hinge shaft, an upper right sliding rod is slidably inserted in the upper right swing arm sliding cylinder, an upper right positioning hole is correspondingly formed in the left portion of the upper right swing arm sliding cylinder, the left portion of the upper right sliding rod and the left portion of the upper wall of the right middle frame, an upper right positioning bolt is inserted in the upper right positioning hole, an upper right positioning hole capable of being in insertion fit with the upper right positioning bolt when the inner section of the upper right sliding rod slides out to a position corresponding to the upper right positioning bolt is formed in the inner section of the upper right sliding rod, an upper right supporting hole corresponding to the upper right positioning hole in the tail end of the upper right sliding rod is formed in the.

The right swing frame mainly comprises two main structures, one is a left middle frame, and the other is a right upper swing arm sliding cylinder. Wherein, the left middle frame is the main structure of the right swing frame, and one of the main functions is to be in sliding fit with the main frame body. Because the right mounting hole of the right swing frame is arranged on the left middle frame, the right middle frame can be fixed on the main frame body through a bolt penetrating through the right mounting hole, so that the right middle frame and the main frame are integrated, and the right middle frame also plays a role in the right middle frame. The right mounting hole of the right swing frame is also arranged on the left middle frame, so that the electricity meter box can be mounted on the right middle frame through a bolt penetrating through the right mounting hole, and the right middle frame also plays a third role. The right part of the upper wall of the right middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the right upper swing arm sliding cylinder is hinged above the right middle frame through the hinge shaft, so that the right upper swing arm sliding cylinder can swing in a horizontal plane above the right middle frame. The mouth of the upper right swing arm sliding barrel is arranged at the left end and faces the main frame body. And a right upper slide bar is inserted in the right upper swing arm slide cylinder in a sliding manner, and the right upper slide bar can slide back and forth along the inner cavity of the right upper swing arm slide cylinder. The left part of the right upper swing arm sliding cylinder is provided with a right upper positioning hole, the left part of the right upper sliding rod is also provided with a right upper positioning hole, the left part of the upper wall of the right middle frame is also provided with a right upper positioning hole, and when the right upper sliding rod is retracted into the right upper swing arm sliding cylinder and swings to the upper part of the right middle frame, the three right upper positioning holes are aligned up and down. And a right upper positioning bolt is inserted into the right upper positioning hole, and the right upper swing arm sliding cylinder, the right upper sliding rod and the right middle frame can be fixed together through the right upper positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the right swinging frame can freely slide into the right sliding cavity or slide out of the right sliding cavity. In the left swing frame, an auxiliary upper right positioning hole is arranged on the inner section of the upper right slide bar. When the left part of the right upper slide bar slides out of the right upper swing arm sliding barrel, the auxiliary right upper positioning hole is aligned with the right upper positioning hole at the end part of the right upper swing arm sliding barrel, and the right upper slide bar can be locked in the right upper swing arm sliding barrel through a bolt, so that the right upper slide bar and the right upper swing arm sliding barrel are fixedly connected. In this application, be equipped with upper right supporting hole on the fixing device at body frame rear portion, upper right supporting hole interpolation is equipped with upper right supporting bolt. After the upper right swing arm sliding cylinder swings to the upper right supporting hole by a corresponding angle, the upper right supporting hole is aligned with the upper right positioning hole in the left part of the upper right sliding rod, and therefore the upper right sliding rod can be fixed on the fixing device through the upper right supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the upper right swing arm sliding cylinder and the upper right sliding rod, a right middle frame and a fixing device, wherein the right middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through the main frame body, and the connecting body formed by the upper right swing arm sliding cylinder and the upper right sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the right swing frame. For convenience of description, this triangular structure is referred to as the upper right triangular structure.

As an improvement, the right swing frame further comprises a right lower swing arm sliding cylinder, the right portion of the lower wall of the right middle frame faces to the left through an opening portion hinged to the right portion of the lower wall of the right middle frame through a vertical hinge shaft, a right lower sliding rod is inserted in the right lower swing arm sliding cylinder in a sliding mode, a right lower positioning hole is correspondingly formed in the left portion of the right lower swing arm sliding cylinder, the left portion of the right lower sliding rod and the left portion of the lower wall of the right middle frame, a right lower positioning bolt is inserted in the right lower positioning hole, an auxiliary right lower positioning hole capable of being matched with the right lower positioning bolt in an inserting mode when the inner section of the right lower sliding rod slides out to the position corresponding to the right lower positioning bolt is formed in the inner section of the right lower sliding rod, a right lower supporting hole corresponding.

The right swing frame mainly comprises three main structures, wherein the first structure is a right middle frame, the second structure is a right upper swing arm sliding cylinder, and the third structure is a right lower swing arm sliding cylinder. The right part of the lower wall of the right middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the right lower swing arm sliding cylinder is hinged below the right middle frame through the hinge shaft, so that the right lower swing arm sliding cylinder can swing in a horizontal plane below the right middle frame. The opening part of the right lower swing arm sliding barrel is arranged at the right end and faces the main frame body. And a right lower sliding rod is inserted in the right lower swing arm sliding cylinder in a sliding manner and can slide back and forth along the inner cavity of the right lower swing arm sliding cylinder. The left part of the right lower swing arm sliding cylinder is provided with a right lower positioning hole, the left part of the right lower sliding rod is also provided with a right lower positioning hole, the left part of the lower wall of the right middle frame is also provided with a right lower positioning hole, and when the right lower sliding rod retracts into the right lower swing arm sliding cylinder and swings to the lower part of the right middle frame, the three right lower positioning holes are aligned up and down. And a right lower positioning bolt is inserted into the right lower positioning hole, and the right lower swing arm sliding cylinder, the right lower sliding rod and the right middle frame can be fixed together through the right lower positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the right swinging frame can freely slide into the right sliding cavity or slide out of the right sliding cavity. In the right swing frame, an auxiliary right lower positioning hole is arranged on the inner section of the right lower sliding rod. When the left part of the right lower sliding rod slides out of the right lower swing arm sliding cylinder, the auxiliary right lower positioning hole is aligned with the right lower positioning hole at the end part of the right lower swing arm sliding cylinder, and the right lower sliding rod can be locked in the right lower swing arm sliding cylinder through a bolt, so that the right lower sliding rod and the right lower swing arm sliding cylinder are fixedly connected. In this application, be equipped with right lower support hole on the fixing device at body frame rear portion, the downthehole cartridge of right lower support has right lower support bolt. After the right lower swing arm sliding cylinder swings to the right lower supporting hole by a corresponding angle, the right lower supporting hole is aligned with the right lower positioning hole in the left part of the right lower sliding rod, and therefore the right lower sliding rod can be fixed on the fixing device through the right lower supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the right lower swing arm sliding cylinder and the right lower sliding rod, the right middle frame and the fixing device, wherein the right middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through the main frame body, and the connecting body formed by the right lower swing arm sliding cylinder and the right lower sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the right swing frame. For convenience of description, the triangle structure is referred to as a lower right triangle structure. Therefore, two triangular structures, namely an upper right triangular structure and a lower right triangular structure, are formed among the main frame body, the right swing frame and the fixing device, and the structural stability of the right swing frame in the stretching state is greatly enhanced.

As an implementation mode, the fixing device comprises a middle arc plate which is fixedly arranged on a rear panel of the main frame body and provided with a concave arc surface, the two ends of the middle arc plate are respectively hinged with a left clamping arm and a right clamping arm which are provided with the concave arc surface through a vertical hinge shaft, the tail ends of the left clamping arm and the right clamping arm are provided with clamping arm connecting plates, clamping arm connecting holes are formed in the clamping arm connecting plates, the fixing device further comprises a hinge which is arranged between the two clamping arm connecting plates, and the two ends of the hinge are respectively fixedly connected with the two clamping arm connecting plates through a left connecting bolt.

The fixing device mainly comprises a middle arc plate, a left clamping arm, a right clamping arm and a hinge arranged between the left clamping arm and the right clamping arm. Wherein, the middle arc plate is fixedly arranged in the middle of the rear panel of the main frame body and forms an integrated structure with the main frame body. The middle arc plate is a flat plate extending in the horizontal plane, the side wall of the middle arc plate is a concave arc surface, and the concave arc surface is adapted to the circular outer surface of the electric pole. Two ends of the middle arc plate are respectively hinged with a clamping arm, namely a left clamping arm and a right clamping arm. Because the left clamping arm and the right clamping arm are hinged on the middle arc plate through the vertical hinge shaft, the left clamping arm and the right clamping arm can swing left and right in the horizontal plane. When the left clamping arm and the right clamping arm swing outwards, namely swing towards the direction far away from the middle arc plate, the distance between the middle parts of the left clamping arm and the right clamping arm is lengthened, and the left clamping arm and the right clamping arm can clamp a thick electric pole. When the left arm lock and the right arm lock swing inwards, namely swing towards the direction close to the middle arc plate, the distance between the middle parts of the left arm lock and the right arm lock is shortened, and the left arm lock and the right arm lock can clamp a thick electric pole. Also be equipped with a concave cambered surface on left arm lock and the right arm lock to the realization is with the better laminating of pole periphery and press from both sides tightly. Thus, the fixing device is provided with three concave arc surfaces which define a circle corresponding to the three concave arc surfaces, and the thickness of the mounted electric pole is determined. Because the concave cambered surface of middle arc board is fixed unchangeable, and the concave cambered surface of left arm lock and right arm lock can be adjusted, consequently, just can confirm the different circles that correspond through the swing position of adjusting left arm lock and right arm lock, just also confirm to install in different poles or the different positions of pole, strengthened the commonality of this application greatly. The tail ends of the left clamping arm and the right clamping arm are provided with clamping arm connecting plates, and clamping arm connecting holes are formed in the clamping arm connecting plates and used for being connected to the outside. This application is still including setting up the hinge between two arm lock connecting plates, and the hinge both ends correspond the rigid coupling through left connecting bolt and right connecting bolt and two arm lock connecting plates respectively. The hinge is a chain which can freely turn, can perfectly adapt to the circular outer wall of the electric pole, and can be reliably attached to the outer wall of the electric pole. Because the hinge both ends link together through left connecting bolt and right connecting bolt and two arm lock connecting plates, consequently, when left connecting bolt and right connecting bolt tighten up, middle arc board, half circumference of left arm lock and right arm lock chucking pole, the chucking function of the fixed appearance that has embodied similar traditional ammeter case when fixed, and half circumference then is tightly wrapped up by the hinge in addition, embodied the flexible tight commentaries on classics of preventing of pasting of hinge, anti-skidding function, the fixed reliability of ammeter case has been improved greatly. When using, only need earlier be connected hinge one end with the arm lock connecting plate on left arm lock with left connecting bolt, then with the hinge parcel pole after half another circumference, reuse right connecting bolt lock to the arm lock connecting plate of right arm lock can, easy operation is convenient, alone can operate, helps improving installation maintenance efficiency.

As an implementation mode, the hinge comprises a plurality of connecting buckles, the connecting buckles comprise buckles and hooks which are fixedly connected together, buckles of adjacent connecting buckles and hooks are matched with each other in an end-to-end hooking mode to form a connecting buckle chain, a left hook is hooked on a buckle at the head end of the connecting buckle chain, the tail end of the left hook is fixedly provided with a left plate, a left hole is formed in the left plate, a left connecting bolt is inserted into a clamping arm connecting hole of the left hole and a clamping arm connecting hole of the left clamping arm, the hinge further comprises an end buckle matched with the hook in a hooking mode, an end plate matched with the end buckle is fixedly arranged on the end buckle, an end connecting hole is formed in the end plate, and a right connecting bolt is.

The hinge mainly comprises a plurality of connecting retaining rings which are hooked together in a head-tail buckling manner, so that when the hinge is used, the number of the connecting retaining rings can be adjusted according to field requirements, namely the actual thickness of an electric pole, the length of a screwed thread section screwed in when a left connecting bolt and a right connecting bolt are screwed down is shortest, and the installation and maintenance time can be greatly shortened. Structurally, the connecting buckle mainly comprises a buckle and a hook fixedly connected with the buckle. The hook of one connecting buckle ring can be hooked and matched with the buckle ring of the other connecting buckle ring to form a section of connecting buckle ring or a connecting buckle ring chain, so that the number of the connecting buckle rings and the length of the connecting buckle ring chain can be adjusted at will, and the connecting buckle ring chain is very convenient. The buckle of connector link chain head end is gone up the hook and is hung left couple, and left couple end has set firmly the left board, is equipped with left hole on the left board, and the downthehole cartridge of arm lock connecting of left hole and left arm lock has left connecting bolt, screws up connecting bolt and can fix connector link chain head end on left arm lock. The clamping arm connecting structure is characterized by further comprising an end retaining ring matched with the hook in a hanging mode, an end plate matched with the end retaining ring is fixedly arranged on the end retaining ring, an end connecting hole is formed in the end plate, and a right connecting bolt is inserted into the end connecting hole and the clamping arm connecting hole of the right clamping arm. Therefore, the connecting buckle ring chain can be locked on the right clamping arm by screwing the right connecting bolt, and the operation is very simple.

As an improvement, two ends of the concave cambered surface of the middle arc plate are respectively and fixedly provided with a convex end conical nail, the middle parts of the concave cambered surfaces of the left clamping arm and the right clamping arm are respectively and fixedly provided with a convex middle conical nail, and the connecting parts of the retaining ring and the hook are respectively and fixedly provided with a chain conical nail which protrudes towards the electric pole.

After the end conical nails are arranged at the two ends of the concave cambered surface of the middle arc plate, the middle arc plate has two protruding supporting points which are tightly clamped with the periphery of the electric pole. Because two end awl nails can cooperate for the pole of diameter with two awl nail intervals of arbitrary more than or equal to, again because the pole diameter of in-service use all exceeds both ends awl nail interval, consequently in this application, middle arc board can with arbitrary pole looks snap fit. The concave cambered surface middle part of left arm lock and right arm lock has set firmly a convex middle part awl nail, is connected the back by hinge lock at left arm lock and right arm lock, and left arm lock and right arm lock can be supported down through middle arc board and press the pole to middle part awl nail brute force to the pole. Because prefabricated pole surface of traditional cement all has some tiny recesses or holes, the middle part awl nail can be embedded into these recesses or holes deeply, can effectively avoid the upper and lower drunkenness that appears in traditional ammeter case connects or around pole pivoted drawback. In this application, the connecting portion of buckle and couple set firmly to the convex chain awl nail of pole, and the chain awl nail can be when connecting the buckle and press from both sides tight pole deeply imbed pole surface recess or hole in, can effectively avoid the upper and lower drunkenness that appears in traditional ammeter case connects or around pole pivoted drawback, has strengthened the reliability when fixing device is fixed greatly.

To sum up, the electric pole meter box expansion frame adopting the structure is reasonable in structure, one, two or three electric meter boxes can be installed at any time according to expansion needs, other auxiliary equipment does not need to be added, the electric pole expansion frame is firm in fixation and convenient to expand, the electric pole expansion frame is easy to operate by one person, the electric meter boxes are arranged neatly and attractively after expansion, the meter reading is convenient and visual, all the electric meter boxes can be read by ascending at one time, and the work efficiency is improved.

Drawings

The invention is described in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of the structure of the present application in an extended state;

FIG. 2 is a schematic diagram of the left-side extended state of the present application;

FIG. 3 is a schematic structural view of the left swing frame of the present application;

FIG. 4 is a schematic structural view of a right swing frame of the present application;

FIG. 5 is a schematic view of the structure of the fastening device of the present application;

FIG. 6 is a schematic structural view of the present application in a contracted state;

fig. 7 is a bottom view of fig. 6.

Detailed Description

As shown in the figure, the electric pole meter box expansion frame comprises a main frame body 2, a main mounting hole 8 which is used for mounting an electric meter box 1 and is penetrated through from front to back is formed in the main frame body, a main mounting bolt 58 is inserted into the main mounting hole, a fixing device 20 which is used for fixing the main frame body on an electric pole 4 is mounted on a rear panel 3 of the main frame body, a right swing frame 11 is hinged to the right side of the main frame body through a right hinge shaft 01, the right swing frame can enable an inner side plate of the main frame body to horizontally swing 180 degrees to the right from a position which is close to the front panel of the main frame body in parallel, a right mounting hole 10 corresponding to the main mounting hole is formed in the right swing frame, a left side frame 5 is hinged to the left side of the main frame body through a left hinge shaft 02, the left side frame can enable the inner side plate to horizontally swing 90 degrees to the left from a position which is perpendicular to the front panel of the main frame body in front of the main frame body, the length of the left side frame And in the angle, a left mounting hole 9 corresponding to the main mounting hole is formed in the left swing frame, and auxiliary fixing devices 12 matched with the fixing devices in a locking mode are arranged on the left swing frame and the right swing frame.

This electric pole meter box expansion frame mainly includes the body frame body and sets up the fixing device on the body frame body. For convenience of description, the direction in which the main frame is close to the pole is referred to as rear, the corresponding direction is referred to as front, and the two sides are referred to as left and right, respectively. The main frame body rear portion passes through fixing device and installs on the pole, and the main frame body front portion installation ammeter case, right side pendulum frame, left side frame and left pendulum frame are installed respectively to the main frame body left and right sides. The main frame body is provided with a main mounting hole which is through from front to back, a main mounting bolt is inserted into the main mounting hole, and the electric meter box can be mounted on the main frame body through the main mounting hole and the main mounting bolt. The main frame body right side is through the articulated cooperation in right hinge axle and right swing frame left side, because the vertical setting of right hinge axle, consequently right swing frame can be around the relative main frame body horizontal hunting of right hinge axle. For convenience of description, the side surface of the right swing frame that swings toward the main frame when swinging forward is referred to as an inner side surface or an inner side plate, and the other side surface of the right swing frame, that is, the side surface facing away from the main frame is referred to as an outer side surface or an outer side plate. The maximum angle that the right swinging frame can swing forwards and leftwards is that the inner side surface of the right swinging frame is arranged in parallel with the front panel of the main frame body. For convenience of description, the swing angle is referred to as a starting angle, i.e. 0 degree, and the state of the right swing frame at the starting angle is referred to as a right retracted state or a right idle state. The maximum angle at which the right swing frame swings forward and rightward is such that the inner side plate of the right swing frame is flush with the front panel of the main frame, and for convenience, this swing angle is referred to as a cut-off angle. At this time, since the inner panel of the right swing frame is flush with the front panel of the main frame, the cut-off angle is 180 degrees with respect to the start angle. At this time, the right swing frame is fixed and locked with the fixing device through the auxiliary fixing device, and for convenience of description, the state is called as a right stretching state or a right working state. When the right side extends the state, not only can fix first ammeter case on the body frame body through main construction bolt, can also pass right mounting hole with the second ammeter case through the bolt alone and install on having the left rocker. Similarly, the left side of the main frame body is hinged and matched with the right side of the left swing frame through the left hinge shaft, the left frame and the left hinge shaft, and the left swing frame can swing left and right around the left hinge shaft relative to the main frame body because the left hinge shaft is vertically arranged. For convenience of description, a side surface of the left swing frame and the left side frame which swings toward the main frame when swinging forward is referred to as an inner side surface or an inner side plate, and the other side surface of the left swing frame and the left side frame, that is, a side surface facing away from the main frame is referred to as an outer side surface or an outer side plate. In this application, the left side frame sets up between left side pendulum frame right side and main frame body left side, and the left side frame left side is through the articulated cooperation of right hinge axle and left pendulum frame right side, and the left side frame right side is through left side hinge axle and main frame body left side swing cooperation. Therefore, the main frame body, the left side frame and the left swinging frame form a chain structure, and the chain structure is mainly arranged to increase the swinging range and flexibility of the left swinging frame. When the left side frame swings forwards and rightwards, the inner side plate of the left side frame can reach a position where the inner side plate is perpendicular to the front panel of the main frame body, and the maximum position of the left side plate swinging leftwards is that the inner side plate is flush with the front panel of the main frame body, so that the swinging range of the left side plate is 90 degrees. In the right retracted state, when the left swing frame swings forward and rightward, the left side plate will swing to a state where the inner side plate of the left side plate is perpendicular to the front panel of the main frame body, and for convenience of description, this state of the left side plate will be referred to as a left retracted state or a left idle state. In this application, the length of left side board equals with the thickness of right rocker, also under right contraction state and left side contraction state, the position of left hinge axle just in time with the outer panel parallel and level of right rocker, and at this moment, the biggest angle that left rocker can swing makes its medial surface and the parallel setting of hugging closely of right rocker outer panel. For convenience of description, the swing angle is referred to as a starting angle, i.e., 0 degree, and the state of the left swing frame at the starting angle is referred to as a left retracted state or a left idle state. The maximum angle of the left swing frame swinging forwards and leftwards is that the inner side plate of the left swing frame is flush with the front panel of the main frame body and the inner side plate of the left side plate, and for convenience of description, the swinging angle is called as a cut-off angle. Since the inner side plate of the left swing frame is flush with both the front plate of the main frame body and the inner side plate of the left side plate, the cut-off angle is 180 degrees with respect to the start angle. At this time, the left swing frame is fixedly locked with the fixing device through the auxiliary fixing device, and for convenience of description, the state is called a left stretching state or a left working state. When the left stretching state, not only can fix first ammeter case on the body frame body through main construction bolt, can also install on the left rocker after passing left mounting hole alone with third ammeter case through the bolt.

In this application, left side rocker includes left side intermediate frame 13, and left side mounting hole sets up on left intermediate frame, and left side intermediate frame upper wall left part articulates through vertical hinge has the upper left swing arm slide cartridge 14 that the oral area is right, and sliding cartridge has upper left slide bar 15 in the upper left swing arm slide cartridge, and the upper left swing arm slide cartridge right part, upper left slide bar right part and left intermediate frame upper wall right part correspond and are equipped with upper left locating hole 16, and upper left locating hole cartridge has upper left positioning bolt 17, is equipped with on the upper left slide bar inner segment with upper left positioning bolt cartridge complex vice upper left locating hole 18, be equipped with the upper left supporting hole 19 that corresponds with the upper left locating hole on the fixing device, upper left supporting hole cartridge is equipped with upper left supporting bolt 21. The left swing frame mainly comprises two main structures, namely a left middle frame and a left upper swing arm sliding cylinder. The left middle frame is a main body structure of the left swinging frame, and one of the main functions of the left middle frame is in sliding fit with the main frame body. Because the left mounting hole of the left swing frame is arranged on the left middle frame, the left middle frame can be fixed on the main frame body through a bolt penetrating through the left mounting hole, so that the left middle frame and the main frame are integrated, and the left middle frame also plays a role in the left middle frame. The left mounting hole of the left swing frame is also arranged on the left middle frame, so that the electricity meter box can be mounted on the left middle frame through a bolt penetrating through the left mounting hole, and the effect of the left middle frame is three. The left part of the upper wall of the left middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the left upper swing arm sliding cylinder is hinged above the left middle frame through the hinge shaft, so that the left upper swing arm sliding cylinder can swing in the horizontal plane above the left middle frame. The mouth of the upper left swing arm sliding barrel is arranged at the right end and faces the main frame body. And a left upper slide bar is inserted in the left upper swing arm slide cylinder in a sliding manner, and the left upper slide bar can slide back and forth along the inner cavity of the left upper swing arm slide cylinder. The left upper swing arm sliding cylinder is provided with a left upper positioning hole at the right part, the left upper sliding rod is also provided with a left upper positioning hole at the right part, the left middle frame upper wall is also provided with a left upper positioning hole at the right part, and when the left upper sliding rod is retracted into the left upper swing arm sliding cylinder and swings to the upper part of the left middle frame, the three left upper positioning holes are aligned up and down. And a left upper positioning bolt is inserted into the left upper positioning hole, and the left upper swing arm sliding cylinder, the left upper sliding rod and the left middle frame can be fixed together through the left upper positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the left swinging frame can freely slide into the left sliding cavity or slide out of the left sliding cavity. In the left swing frame, an auxiliary left upper positioning hole is arranged on the inner section of the left upper slide bar. When the right part of the upper left slide bar slides out of the upper left swing arm sliding cylinder, the upper left positioning hole of the auxiliary upper left positioning hole is aligned with the upper left positioning hole at the end part of the upper left swing arm sliding cylinder, and the upper left slide bar can be locked in the upper left swing arm sliding cylinder through the bolt, so that the upper left slide bar and the upper left swing arm sliding cylinder are fixedly connected. In this application, be equipped with upper left supporting hole on the fixing device at body frame rear portion, upper left supporting hole interpolation is equipped with upper left supporting bolt. After the upper left swing arm sliding cylinder swings a corresponding angle towards the upper left supporting hole, the upper left supporting hole is aligned with the upper left positioning hole at the right part of the upper left sliding rod, and therefore the upper left sliding rod can be fixed on the fixing device through the upper left supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the upper left swing arm sliding cylinder and the upper left sliding rod, a left middle frame and a fixing device, wherein the left middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through a main frame body, and the connecting body formed by the upper left swing arm sliding cylinder and the upper left sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the left swing frame. For convenience of description, this triangular structure is referred to as the upper left triangular structure.

The left swing frame further comprises a left lower swing arm sliding cylinder 22 which is arranged at the left part of the lower wall of the left middle frame and is hinged to the right through a vertical hinge shaft, a left lower sliding rod 23 is inserted in the left lower swing arm sliding cylinder in a sliding mode, a left lower positioning hole 24 is correspondingly formed in the right part of the left lower swing arm sliding cylinder, the right part of the left lower sliding rod and the right part of the lower wall of the left middle frame, a left lower positioning bolt 25 is inserted in the left lower positioning hole, an auxiliary left lower positioning hole 26 matched with the left lower positioning bolt in an inserting mode is formed in the inner section of the left lower sliding rod, a left lower supporting hole 27 corresponding to the left lower positioning hole is formed in the fixing device, and a left lower supporting. The left swing frame mainly comprises three main structures, wherein the first structure is a left middle frame, the second structure is a left upper swing arm sliding cylinder, and the third structure is a left lower swing arm sliding cylinder. The left part of the lower wall of the left middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the left lower swing arm sliding cylinder is hinged below the left middle frame through the hinge shaft, so that the left lower swing arm sliding cylinder can swing in the horizontal plane below the left middle frame. The opening part of the left lower swing arm sliding barrel is arranged at the right end and faces the main frame body. A left lower sliding rod is inserted in the left lower swing arm sliding cylinder in a sliding manner and can slide back and forth along the inner cavity of the left lower swing arm sliding cylinder. The left lower swing arm sliding cylinder is provided with a left lower positioning hole at the right part, the left lower sliding rod is also provided with a left lower positioning hole at the right part, the left middle frame lower wall is also provided with a left lower positioning hole at the right part, and when the left lower sliding rod retracts into the left lower swing arm sliding cylinder and swings to the lower part of the left middle frame, the three left lower positioning holes are aligned up and down. And a left lower positioning bolt is inserted into the left lower positioning hole, and the left lower swing arm sliding cylinder, the left lower sliding rod and the left middle frame can be fixed together through the left lower positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the left swinging frame can freely slide into the left sliding cavity or slide out of the left sliding cavity. In the left swing frame, an auxiliary left lower positioning hole is arranged on the inner section of the left lower sliding rod. When the right part of the left lower sliding rod slides out of the left lower swing arm sliding cylinder, the auxiliary left lower positioning hole is aligned with the left lower positioning hole at the end part of the left lower swing arm sliding cylinder, and the left lower sliding rod can be locked in the left lower swing arm sliding cylinder through a bolt, so that the left lower sliding rod and the left lower swing arm sliding cylinder are fixedly connected. In this application, be equipped with left lower support hole on the fixing device at body frame rear portion, the downthehole cartridge of left lower support has left lower support bolt. After the left lower swing arm sliding cylinder swings to a corresponding angle towards the left lower supporting hole, the left lower supporting hole is aligned with the left lower positioning hole at the right part of the left lower sliding rod, so that the left lower sliding rod can be fixed on the fixing device through the left lower supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the left lower swing arm sliding cylinder and the left lower sliding rod, the left middle frame and the fixing device, wherein the left middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through the main frame body, and the connecting body formed by the left lower swing arm sliding cylinder and the left lower sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the left swing frame. For convenience of description, the triangle structure is referred to as a lower left triangle structure. Therefore, two triangular structures, namely an upper left triangular structure and a lower left triangular structure, are formed among the main frame body, the left swing frame and the fixing device, and the structural stability of the left swing frame in the stretching state is greatly enhanced.

The right swing frame comprises a right middle frame 29, a right mounting hole is formed in the right middle frame, the right portion of the upper wall of the right middle frame is hinged to a right upper swing arm sliding cylinder 30 with a leftward opening, a right upper sliding rod 31 is slidably inserted in the right upper swing arm sliding cylinder, a right upper positioning hole 32 is correspondingly formed in the left portion of the right upper swing arm sliding cylinder, the left portion of the right upper sliding rod and the left portion of the upper wall of the right middle frame, an upper right positioning bolt 33 is inserted in the upper right positioning hole, an auxiliary upper right positioning hole 34 matched with the upper right positioning bolt in an inserted mode is formed in the inner section of the upper right sliding rod, an upper right supporting hole 35 corresponding to the upper right positioning hole is formed in the fixing device, and an upper right supporting bolt 36 is inserted in the upper right supporting. The right swing frame mainly comprises two main structures, one is a left middle frame, and the other is a right upper swing arm sliding cylinder. Wherein, the left middle frame is the main structure of the right swing frame, and one of the main functions is to be in sliding fit with the main frame body. Because the right mounting hole of the right swing frame is arranged on the right middle frame, the right middle frame can be fixed on the main frame body through a bolt penetrating through the right mounting hole, so that the right middle frame and the main frame are in an integral structure, and the integral structure also plays a role of the right middle frame. The right mounting hole of the right swing frame is also arranged on the left middle frame, so that the electricity meter box can be mounted on the left middle frame through a bolt penetrating through the right mounting hole, and the effect of the right middle frame is three. The right part of the upper wall of the right middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the right upper swing arm sliding cylinder is hinged above the right middle frame through the hinge shaft, so that the right upper swing arm sliding cylinder can swing in a horizontal plane above the right middle frame. The mouth of the upper right swing arm sliding barrel is arranged at the left end and faces the main frame body. And a right upper slide bar is inserted in the right upper swing arm slide cylinder in a sliding manner, and the right upper slide bar can slide back and forth along the inner cavity of the right upper swing arm slide cylinder. The left part of the right upper swing arm sliding cylinder is provided with a right upper positioning hole, the left part of the right upper sliding rod is also provided with a right upper positioning hole, the left part of the upper wall of the right middle frame is also provided with a right upper positioning hole, and when the right upper sliding rod is retracted into the right upper swing arm sliding cylinder and swings to the upper part of the right middle frame, the three right upper positioning holes are aligned up and down. And a right upper positioning bolt is inserted into the right upper positioning hole, and the right upper swing arm sliding cylinder, the right upper sliding rod and the right middle frame can be fixed together through the right upper positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the right swinging frame can freely slide into the right sliding cavity or slide out of the right sliding cavity. In the left swing frame, an auxiliary upper right positioning hole is arranged on the inner section of the upper right slide bar. When the left part of the right upper slide bar slides out of the right upper swing arm sliding barrel, the auxiliary right upper positioning hole is aligned with the right upper positioning hole at the end part of the right upper swing arm sliding barrel, and the right upper slide bar can be locked in the right upper swing arm sliding barrel through a bolt, so that the right upper slide bar and the right upper swing arm sliding barrel are fixedly connected. In this application, be equipped with upper right supporting hole on the fixing device at body frame rear portion, upper right supporting hole interpolation is equipped with upper right supporting bolt. After the upper right swing arm sliding cylinder swings to the upper right supporting hole by a corresponding angle, the upper right supporting hole is aligned with the upper right positioning hole in the left part of the upper right sliding rod, and therefore the upper right sliding rod can be fixed on the fixing device through the upper right supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the upper right swing arm sliding cylinder and the upper right sliding rod, a right middle frame and a fixing device, wherein the right middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through the main frame body, and the connecting body formed by the upper right swing arm sliding cylinder and the upper right sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the right swing frame. For convenience of description, this triangular structure is referred to as the upper right triangular structure.

The right swing frame further comprises a right lower swing arm sliding barrel 37, the right portion of the lower wall of the right middle frame faces to the left through an opening portion hinged to the vertical hinge shaft, a right lower sliding rod 38 is inserted in the right lower swing arm sliding barrel in a sliding mode, a right lower positioning hole 39 is correspondingly formed in the left portion of the right lower swing arm sliding barrel, the left portion of the right lower sliding rod and the left portion of the lower wall of the right middle frame, a right lower positioning bolt 40 is inserted in the right lower positioning hole, an auxiliary right lower positioning hole 41 in insertion fit with the right lower positioning bolt is formed in the inner section of the right lower sliding rod, a right lower supporting hole 42 corresponding to the right lower positioning hole is formed in the. The right swing frame mainly comprises three main structures, wherein the first structure is a right middle frame, the second structure is a right upper swing arm sliding cylinder, and the third structure is a right lower swing arm sliding cylinder. The right part of the lower wall of the right middle frame is provided with a hinge shaft which is vertically arranged in the axial direction, and the right lower swing arm sliding cylinder is hinged below the right middle frame through the hinge shaft, so that the right lower swing arm sliding cylinder can swing in a horizontal plane below the right middle frame. The opening part of the right lower swing arm sliding barrel is arranged at the right end and faces the main frame body. And a right lower sliding rod is inserted in the right lower swing arm sliding cylinder in a sliding manner and can slide back and forth along the inner cavity of the right lower swing arm sliding cylinder. The left part of the right lower swing arm sliding cylinder is provided with a right lower positioning hole, the left part of the right lower sliding rod is also provided with a right lower positioning hole, the left part of the lower wall of the right middle frame is also provided with a right lower positioning hole, and when the right lower sliding rod retracts into the right lower swing arm sliding cylinder and swings to the lower part of the right middle frame, the three right lower positioning holes are aligned up and down. And a right lower positioning bolt is inserted into the right lower positioning hole, and the right lower swing arm sliding cylinder, the right lower sliding rod and the right middle frame can be fixed together through the right lower positioning bolt. For convenience of description, this state is referred to as a bundled state. In the binding state, the right swinging frame can freely slide into the right sliding cavity or slide out of the right sliding cavity. In the right swing frame, an auxiliary right lower positioning hole is arranged on the inner section of the right lower sliding rod. When the left part of the right lower sliding rod slides out of the right lower swing arm sliding cylinder, the auxiliary right lower positioning hole is aligned with the right lower positioning hole at the end part of the right lower swing arm sliding cylinder, and the right lower sliding rod can be locked in the right lower swing arm sliding cylinder through a bolt, so that the right lower sliding rod and the right lower swing arm sliding cylinder are fixedly connected. In this application, be equipped with right lower support hole on the fixing device at body frame rear portion, the downthehole cartridge of right lower support has right lower support bolt. After the right lower swing arm sliding cylinder swings to the right lower supporting hole by a corresponding angle, the right lower supporting hole is aligned with the right lower positioning hole in the left part of the right lower sliding rod, and therefore the right lower sliding rod can be fixed on the fixing device through the right lower supporting bolt. For convenience of description, this state is referred to as the deployed state. At the moment, a right-angled triangle structure relationship is formed by a connecting body formed by the right lower swing arm sliding cylinder and the right lower sliding rod, the right middle frame and the fixing device, wherein the right middle frame and the fixing device are two right-angled sides in a triangle fixedly connected together through the main frame body, and the connecting body formed by the right lower swing arm sliding cylinder and the right lower sliding rod is a hypotenuse of the triangle. According to the triangle stability principle, the structure can ensure the structural stability of the ammeter box on the right swing frame. For convenience of description, the triangle structure is referred to as a lower right triangle structure. Therefore, two triangular structures, namely an upper right triangular structure and a lower right triangular structure, are formed among the main frame body, the right swing frame and the fixing device, and the structural stability of the right swing frame in the stretching state is greatly enhanced.

The fixing device 20 comprises a middle arc plate 54 which is fixedly arranged on the rear panel of the main frame body and provided with a concave arc surface, the two ends of the middle arc plate are respectively hinged with a left clamping arm 45 and a right clamping arm 46 which are provided with a concave arc surface through a vertical hinge shaft 44, the tail ends of the left clamping arm and the right clamping arm are provided with clamping arm connecting plates 55, the clamping arm connecting plates are provided with clamping arm connecting holes 56, the fixing device further comprises a hinge which is arranged between the two clamping arm connecting plates, and the two ends of the hinge are respectively and correspondingly fixedly connected with the two clamping arm connecting plates through a left.

The hinge comprises a plurality of connecting buckles 48, each connecting buckle 48 comprises a buckle 49 and a hook 50 which are fixedly connected together, the buckles 49 and the hooks (50) of the adjacent connecting buckles 48 are matched with each other in an end-to-end hooking mode to form a connecting buckle chain, a left hook 61 is hooked on the buckle 49 at the head end of the connecting buckle chain, the tail end of the left hook 61 is fixedly provided with a left plate 62, a left hole is formed in the left plate 62, a left connecting bolt is inserted into the clamping arm connecting holes of the left hole and the left clamping arm, the hinge further comprises an end buckle 51 matched with the hook in a hooking mode, an end plate 52 matched with the end buckle is fixedly arranged on the end buckle, an end connecting hole 53 is formed in the end plate, and a right connecting bolt is inserted.

Two ends of the concave arc surface of the middle arc plate are respectively and fixedly provided with a convex end conical nail 58, the middle parts of the concave arc surfaces of the left clamping arm and the right clamping arm are respectively and fixedly provided with a convex middle conical nail 59, and the connecting parts of the retaining ring and the hook are respectively and fixedly provided with a chain conical nail 60 which protrudes towards the electric pole.

Claims

1. The utility model provides a pole table case extension frame, characterized by: comprises a main frame body (2), a main mounting hole (8) which is arranged on the main frame body (2) and is penetrated through from front to back and used for mounting an electric meter box (1), a main mounting bolt (58) is inserted in the main mounting hole (8), a fixing device (20) which is used for fixing the main frame body (2) on an electric pole (4) is arranged on a rear panel (3) of the main frame body (2), a right swing frame (11) is hinged on the right side of the main frame body (2) through a right hinge shaft (01), the right swing frame (11) can enable an inner side plate to horizontally swing 180 degrees from the position which is tightly attached to a front panel of the main frame body (2) in parallel, a right mounting hole (10) corresponding to the main mounting hole (8) is arranged on the right swing frame (11), a left side frame (5) is hinged on the left side of the main frame body (2) through a left hinge shaft (02), the left side frame (5) can enable the inner side plate to horizontally swing 90, the length of the left side frame (5) is the same as the thickness of the right swing frame (11), the left side of the left side frame (5) is hinged with a left swing frame (7) through a left hinge shaft (03), the left swing frame (7) can enable an inner side plate to horizontally swing leftwards from a position which is parallel to and close to a front panel of the main frame body (2) to an angle which is parallel to the inner side plate of the left side frame (5), a left mounting hole (9) corresponding to the main mounting hole (8) is formed in the left swing frame (7), and the left swing frame and the right swing frame are both provided with auxiliary fixing devices (12) which are locked and matched with the fixing devices; the left swing frame (7) comprises a left middle frame (13), a left mounting hole (9) is arranged on the left middle frame (13), the left part of the upper wall of the left middle frame (13) is hinged with a left upper swing arm sliding cylinder (14) with an opening part facing right through a vertical hinge shaft, a left upper sliding rod (15) is inserted in the left upper swing arm sliding cylinder (14) in a sliding manner, the right part of the left upper swing arm sliding cylinder (14), the right part of the left upper sliding rod (15) and the right part of the upper wall of the left middle frame (13) are correspondingly provided with a left upper positioning hole (16), an upper left positioning bolt (17) is inserted in the left upper positioning hole (16), an upper left positioning hole (18) which can be matched with the upper left positioning bolt (17) in an inserting manner when the inner section of the upper left sliding rod slides out to the position corresponding to the upper left positioning bolt (17) is arranged on the inner section of the upper left sliding rod (15), and an upper left supporting hole (19) corresponding to the upper left positioning hole (16), a left upper supporting bolt (21) is inserted in the left upper supporting hole (19); the left swing frame (7) further comprises a left lower swing arm sliding cylinder (22) which is hinged to the left part of the lower wall of the left middle frame (13) through a vertical hinge shaft and has a mouth part facing right, a left lower sliding rod (23) is inserted in the left lower swing arm sliding cylinder (22), a left lower positioning hole (24) is correspondingly arranged on the right part of the left lower swing arm sliding cylinder (22), the right part of the left lower sliding rod (23) and the right part of the lower wall of the left middle frame (13), a left lower positioning bolt (25) is inserted in the left lower positioning hole (24), an auxiliary left lower positioning hole (26) which can be inserted and matched with the left lower positioning bolt (25) when the inner section of the left lower sliding rod slides out to the position corresponding to the left lower positioning bolt (25) is arranged on the inner section of the left lower sliding rod, and a left lower supporting hole (27) corresponding to a left lower positioning hole (24) at the tail end of the left lower sliding rod (23) is formed in the fixing device (20), and a left lower supporting bolt (28) is inserted into the left lower supporting hole (27).

2. The pole box expansion frame as recited in claim 1, further comprising: the right swing frame (11) comprises a right middle frame (29), a right mounting hole (10) is arranged on the right middle frame (29), the right part of the upper wall of the right middle frame (29) is hinged with a right upper swing arm sliding cylinder (30) with an opening facing to the left through a vertical hinge shaft, a right upper sliding rod (31) is inserted in the right upper swing arm sliding cylinder (30) in a sliding manner, the left part of the right upper swing arm sliding cylinder (30), the left part of the right upper sliding rod (31) and the left part of the upper wall of the right middle frame (29) are correspondingly provided with a right upper positioning hole (32), an upper right positioning bolt (33) is inserted in the right upper positioning hole (32), an upper right supporting hole (35) corresponding to the upper right positioning hole (32) at the tail end of the right upper sliding rod (31) is arranged on the inner section of the right upper sliding rod (31) and can be matched with the upper right positioning bolt (33) in an inserting manner when the inner section of the right upper sliding rod slides out to the position corresponding to the upper, a right upper supporting bolt (36) is inserted in the right upper supporting hole (35).

3. The pole box expansion frame as recited in claim 2, further comprising: the right swing frame (11) also comprises a right lower swing arm sliding barrel (37) which is hinged at the right part of the lower wall of the right middle frame (29) through a vertical hinge shaft and has an opening facing to the left, a right lower sliding rod (38) is inserted in the right lower swing arm sliding barrel (37), a right lower positioning hole (39) is correspondingly arranged at the left part of the right lower swing arm sliding barrel (37), the left part of the right lower sliding rod (38) and the left part of the lower wall of the right middle frame (29), a right lower positioning bolt (40) is inserted in the right lower positioning hole (39), an auxiliary right lower positioning hole (41) which can be inserted and matched with the right lower positioning bolt (40) when the inner section of the right lower sliding rod slides out to the position corresponding to the right lower positioning bolt (40) is arranged on the inner section of the right lower, the fixing device (20) is provided with a right lower supporting hole (42) corresponding to a right lower positioning hole (39) at the tail end of the right lower sliding rod (38), and a right lower supporting bolt (43) is inserted in the right lower supporting hole (42).