CN214842961U - Measuring device for power distribution network engineering - Google Patents

Abstract

The utility model discloses a measuring device for power distribution network engineering, place the shell including columnar structure, the bottom center department rigid coupling of placing the shell has the connection shell, the inside of placing the shell is provided with the chamber of placing that can place measuring instrument, the inside center department of placing the chamber is provided with the elevating platform that is used for placing the instrument, the stand pipe has been cup jointed on the outer wall of elevating platform, the stand pipe rigid coupling is on the bottom lateral wall of placing the shell, the bottom of elevating platform is connected with the lift threaded rod of rotation, bottom one side of lift threaded rod runs through places shell lateral wall and connection shell, and the bottom of lift threaded rod extends to the bottom of connection shell, the bottom rigid coupling of lift threaded rod has the hand wheel. The movable threaded rod drives the limiting arc plates to be close to the bottom of the shell of the measuring equipment in a self-rotating mode inside the second threaded sleeve, the fixing of the measuring equipment is completed, different measuring equipment can be fixed through the two limiting arc plates which are symmetrically arranged, the application range is wide, and the measurement under the field environment is facilitated.

Description

Measuring device for power distribution network engineering

Technical Field

The utility model belongs to the technical field of the distribution network technique and specifically relates to a measuring device for power distribution network engineering.

Background

The distribution network is an electric power network which receives electric energy from a transmission network or a regional power plant and distributes the electric energy to various users on site through distribution facilities or step by step according to voltage. The power distribution network consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators, accessory facilities and the like, and plays a role in distributing electric energy in a power network.

When a power distribution network is built, the positions of power distribution network components under different geographical environments need to be established, so that the measurement of the terrain and the topography needs to be carried out in an installation area, different measurement equipment is needed in the measurement process, most of the equipment cannot be installed and used by using a uniform installation frame, inconvenience is brought to field measurement, in the measurement process, the angles of three adjacent overhead line devices need to be measured sometimes to determine the route of a power distribution cable, but the traditional measurement equipment is complex in operation and inconvenient to use. Therefore, a measuring device for power distribution network engineering is provided to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a measuring device for power distribution network engineering is used for solving among the prior art at the measuring in-process needs different measuring equipment, and these equipment majority can not be installed and use with unified mounting bracket, the problem of inconvenient for field survey.

According to one aspect of the utility model, a measuring device for power distribution network engineering is provided, which comprises a placing shell with a columnar structure, wherein a connecting shell is fixedly connected at the center of the bottom of the placing shell, a placing cavity for placing a measuring instrument is arranged inside the placing shell, a lifting platform for placing the instrument is arranged at the center of the inside of the placing cavity, a guide pipe is sleeved on the outer wall of the lifting platform and fixedly connected on the side wall of the bottom of the placing shell, a lifting threaded rod capable of rotating is connected at the bottom of the lifting platform, one side of the bottom end of the lifting threaded rod penetrates through the side wall of the placing shell and the connecting shell, the bottom end of the lifting threaded rod extends to the bottom of the connecting shell, a hand wheel is fixedly connected at the bottom end of the lifting threaded rod, a first threaded sleeve is sleeved on the surface thread of the lifting threaded rod, the first threaded sleeve is fixedly connected on the side wall of the bottom of the placing shell, the bottom of connecting the shell is provided with the tripod, the bottom of connecting the shell is provided with the angle measurement subassembly.

Further, the top outer wall both sides of placing the shell all are provided with fixed unit, two the fixed unit symmetry sets up, fixed unit includes movable threaded rod, carriage release lever and spacing arc board, movable threaded rod prolongs the horizontal direction and runs through and places the shell lateral wall, but wherein one of movable threaded rod serves the carriage release lever that has cup jointed the rotation, the terminal rigid coupling of carriage release lever has spacing arc board, spacing arc board is located places the intracavity, the surface screw thread of movable threaded rod has cup jointed second thread sleeve pipe, second thread sleeve pipe rigid coupling is on placing the shell inner wall.

Further, the angle measurement subassembly is including middle positioning unit and two side positioning unit that mutually support and use, middle positioning unit includes the locating lever and marks the subassembly, side positioning unit includes locating lever and peg graft pole, the top rigid coupling of locating lever has the fixed block, the fixed block is pegged graft in the inner chamber of set casing, and the set casing fixes on the bottom lateral wall of placing the shell, it has the fixed pin to peg graft on the set casing, the fixed pin runs through the set casing lateral wall and pegs graft to the fixed block on.

Further, the calibration assembly comprises a containing shell, a measuring disc, a connecting rod and a rotating shell, the containing shell is embedded on the positioning rod, the measuring disc is fixedly connected to the bottom end of the containing shell, the containing shell is of a columnar structure, and two connecting assemblies which are arranged in a central symmetry mode are arranged inside the containing shell.

Further, coupling assembling includes the connecting rod, rotates shell, rolling disc, places dish and reference rope, the equal rigid coupling in both ends of connecting rod has the dish of placing, and one of them outer wall center department of placing the dish is connected with the rolling disc, the surface coating of rolling disc has the rotation shell, rotate the shell rigid coupling on the inner wall of accomodating the shell, another rigid coupling has driven pulleys on placing the outer wall of dish, driven pulleys is connected to on the driving pulley through drive belt transmission, the driving pulley sets up on accomodating the shell outer wall.

Further, the surface of connecting rod is twined and is had the reference rope, the terminal arc wall through accomodating the shell surface of reference rope runs through and accomodates the shell lateral wall, the terminal rigid coupling of reference rope has the grafting shell, the arc wall is seted up on accomodating the shell lateral wall along the horizontal direction, the central angle of arc wall is between 120 and 270, and two arc walls are centrosymmetric settings.

Furthermore, an inserting rod is fixedly connected to the positioning rod forming the side positioning unit, the inserting rod is of a square structure, a groove is formed in the surface of the inserting rod, and the groove in the inserting rod is connected with the inserting shell in a clamping mode.

Furthermore, a fixing rod is inserted into the insertion shell and penetrates through the side wall of the insertion shell, a limiting block capable of being clamped with the groove is fixedly connected to the bottom end of the fixing rod, a spring is sleeved on the surface of the fixing rod, and two ends of the spring are fixedly connected to the side wall of the fixing rod and the inner wall of the insertion shell respectively.

Further, be provided with the scale that is used for measuring the angle on the measurement disc, the scale is the loop configuration, and the scale setting is in the bottom edge of storage case, the annular spout of loop configuration has been seted up to the outside edge of measurement disc, sliding connection has two arc sliders on the annular spout, the top rigid coupling of arc slider has L type pole, the rigid coupling has the benchmark board on the tip of L type pole, the bottom and the scale surface laminating of benchmark board, the benchmark board is made by transparent material, the thickness of benchmark board and L type pole is unanimous, and the thickness of benchmark board and L type pole is below a millimeter, locating lever and connecting rod are on same vertical line.

Through the above embodiment of the utility model, movable threaded rod drives spacing arc board in the inside rotation of second thread bush and presses close to measuring equipment's casing bottom, accomplishes the fixed to measuring equipment, utilizes two spacing arc boards that the symmetry set up can fix different measuring equipment, and application scope is wider, the measurement under the field environment of being convenient for.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic plane internal structure diagram according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure of the plug shell and the plug rod according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a calibration assembly according to an embodiment of the present invention.

In the figure: 1. the device comprises a placing shell, 2, a connecting shell, 3, a tripod, 4, a guide pipe, 5, a lifting platform, 6, a lifting threaded rod, 7, a movable threaded rod, 8, a movable rod, 9, a limiting arc plate, 10, a fixed shell, 11, a fixed block, 12, a hand wheel, 13, a fixed pin, 14, a positioning rod, 15, a calibration component, 16, a containing shell, 17, a measuring disc, 18, a connecting rod, 19, a rotating shell, 20, a rotating disc, 21, a placing disc, 22, a reference rope, 23, a plug-in shell, 2301, a limiting block, 2302, a fixed rod, 2303, a spring, 24, a driven belt wheel, 25, a driving belt wheel, 26, a transmission belt, 27, an annular chute, 28, an arc-shaped sliding block, 29, an L-shaped rod, 30, a reference plate, 31 and a plug-in rod.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The measuring device for power distribution network engineering in this embodiment can be used for installing different measuring equipment, for example, the spirit level that this embodiment provided, the measuring device for power distribution network engineering in this embodiment can be applicable to following spirit level.

The utility model provides a level gauge, includes the casing, sets up the lens on the casing, lens outside cover is equipped with the sheath, be equipped with attemperator on the sheath, attemperator includes the temperature sensor who is used for converting ambient temperature into analog signal, is used for receiving analog signal and carries out the comparing element of comparison output level signal with threshold signal, is used for receiving level signal and controlled switching element, the heating element who connects on first power return circuit of opening and close first power return circuit.

Through the above scheme, the lens of casing plays the effect of protection through the sheath, avoid steam to condense through the dust, attemperator has been set up in addition, ensure that the ambient temperature that the lens of spirit level was located can detect, then confirm whether need adjust the temperature through carrying out the comparison with threshold value signal, compare through the comparing element when the temperature is low excessively, output level signal removes control switch element and switches on first power supply circuit, thereby make work behind heating element's the power supply circuit intercommunication, heat, ensure ventilative can not because temperature influence and fog, go on and ensured the precision that the spirit level detected, and the usability is improved.

As a specific aspect of the present invention, it may be preferable that: the distance range between the temperature sensor and the heating element is 7-11 cm.

Through the scheme, when the distance between the temperature sensor and the heating element is controlled within the range, the temperature can be detected more accurately and the environmental temperature of the lens can be controlled.

As a specific aspect of the present invention, it may be preferable that: the comparison unit comprises a reference unit which adopts a voltage division circuit to provide a threshold voltage signal, and a comparator which receives the threshold voltage signal at a non-inverting terminal and receives an analog signal at an inverting terminal to perform comparison judgment processing.

Through above-mentioned scheme, behind its power supply of reference cell, through the form of resistance partial pressure with this power supply step-down for required comparison threshold voltage signal to can compare with analog signal, the temperature is crossed lowly and is, analog signal's voltage also reduces thereupon, compares through the comparator, and the level signal of output can drive switching element, realizes carrying out intelligent control to whether heating element works, improves intelligent degree.

As a specific aspect of the present invention, it may be preferable that: the switching element is an NPN triode, and the base electrode of the NPN triode receives the level signal output by the comparator.

Through the scheme, when the base electrode of the NPN triode receives a high level, the base electrode of the NPN triode is conducted in a forward bias mode, so that the first power supply loop is switched on, the heating element works, the ambient temperature of the lens is improved, and the phenomenon of fog due to sudden temperature reduction is prevented.

As a specific aspect of the present invention, it may be preferable that: the switch element is an NMOS tube, and a grid electrode of the NMOS tube receives a level signal output by the comparator.

Through the scheme, similarly, the first power supply loop is conducted when the grid electrode of the NMOS tube receives a high level, so that the heating element works; when the low level is received, the current is cut off, the current supply on the first power supply loop is cut off, and the heating element stops working, so that the heating is only carried out when the temperature is low, and the environment temperature is increased.

As a specific aspect of the present invention, it may be preferable that: and the heating element is connected with an LED indicator lamp in parallel.

Through the scheme, due to the arrangement of the LED indicating lamp, the working condition of the heating element can be indicated, when the heating element works, the LED indicating lamp is lightened, and when the heating element does not work, the LED indicating lamp does not work.

As a specific aspect of the present invention, it may be preferable that: the jacket is also provided with a heat-insulating layer which is made of sponge.

Through the scheme, the heat-insulating layer made of the sponge material can ensure that the temperature can be uniformly supplied to the lens, so that the fogging phenomenon can be better eliminated.

As a specific aspect of the present invention, it may be preferable that: the sheath extends axially of the lens and is filled with a dust block which is removable and which serves to block the lens.

Through above-mentioned scheme, can shelter from lens through the dust proof block when not using the spirit level, avoid the entering of dust, improve the life of lens.

Of course, the measuring device for power distribution network engineering in this embodiment may be used for other different measuring apparatuses. Give unnecessary details here again one by one, it is following to the utility model discloses a measuring device for power distribution network engineering introduces.

Referring to fig. 1-4, a measuring device for power distribution network engineering comprises a placing shell 1 with a columnar structure, a connecting shell 2 is fixedly connected to the center of the bottom of the placing shell 1, a placing cavity capable of placing a measuring instrument is arranged inside the placing shell 1, a lifting table 5 for placing the instrument is arranged at the center of the inside of the placing cavity, a guide tube 4 is sleeved on the outer wall of the lifting table 5, the guide tube 4 is fixedly connected to the side wall of the bottom of the placing shell 1, a lifting threaded rod 6 capable of rotating is connected to the bottom of the lifting table 5, one side of the bottom end of the lifting threaded rod 6 penetrates through the side wall of the placing shell 1 and the connecting shell 2, the bottom end of the lifting threaded rod 6 extends to the bottom of the connecting shell 2, a hand wheel 12 is fixedly connected to the bottom end of the lifting threaded rod 6, a first threaded sleeve is sleeved on the surface of the lifting threaded rod 6, the first threaded sleeve is fixedly connected to the side wall of the bottom of the placing shell 1, the bottom of the connecting shell 2 is provided with a tripod 3, and the bottom of the connecting shell 2 is provided with an angle measuring assembly.

The top outer wall both sides of placing shell 1 all are provided with fixed unit, two the fixed unit symmetry sets up, fixed unit is including removal threaded rod 7, carriage release lever 8 and spacing arc board 9, removal threaded rod 7 extends the horizontal direction and runs through placing shell 1 lateral wall, but the carriage release lever 8 of rotation has been cup jointed on one of them end of removal threaded rod 7, the terminal rigid coupling of carriage release lever 8 has spacing arc board 9, spacing arc board 9 is located places the intracavity, the surface screw thread of removal threaded rod 7 has cup jointed the second thread bush, second thread bush rigid coupling is on placing shell 1 inner wall.

The angle measurement subassembly is including middle positioning unit and two side positioning unit that mutually support and use, middle positioning unit includes locating lever 14 and demarcation subassembly 15, side positioning unit includes locating lever 14 and peg graft pole 31, the top rigid coupling of locating lever 14 has fixed block 11, fixed block 11 is pegged graft in the inner chamber of set casing 10, and set casing 10 fixes on the bottom lateral wall of placing casing 1, it has fixed pin 13 to peg graft on the set casing 10, fixed pin 13 runs through set casing 10 lateral wall and pegs graft to fixed block 11 on.

The calibration assembly 15 comprises a storage shell 16, a measuring disc 17, a connecting rod 18 and a rotating shell 19, wherein the storage shell 16 is embedded on the positioning rod 14, the measuring disc 17 is fixedly connected to the bottom end of the storage shell 16, the storage shell 16 is of a columnar structure, and two connecting assemblies which are arranged in a central symmetry mode are arranged inside the storage shell 16.

Coupling assembling includes connecting rod 18, the shell that rotates 19, rolling disc 20, places dish 21 and benchmark rope 22, the equal rigid coupling in both ends of connecting rod 18 has the dish 21 of placing, and one of them places the outer wall center department of dish 21 and is connected with rolling disc 20, the surface coating of rolling disc 20 has the shell 19 that rotates, 19 rigid couplings of shell are on the inner wall of accomodating shell 16, and another rigid coupling has driven pulleys 24 on placing the outer wall of dish 21, driven pulleys 24 is connected to on the driving pulley 25 through the transmission of drive belt 26, driving pulley 25 sets up on accomodating shell 16 outer wall.

The surface of connecting rod 18 is around having twined reference rope 22, the terminal arc wall through accomodating 16 surfaces of reference rope 22 runs through accomodating 16 lateral walls, the terminal rigid coupling of reference rope 22 has plug-in shell 23, the arc wall is seted up on accomodating 16 lateral walls along the horizontal direction, the central angle of arc wall is between 120 and 270, and two arc walls are central symmetry and set up.

An inserting rod 31 is fixedly connected to the positioning rod 14 forming the side positioning unit, the inserting rod 31 is of a square structure, a groove is formed in the surface of the inserting rod 31, and the groove in the inserting rod 31 is connected with the inserting shell 23 in a clamping mode.

The inserting shell 23 is inserted with a fixing rod 2302, the fixing rod 2302 penetrates through the side wall of the inserting shell 23, the bottom end of the fixing rod 2302 is fixedly connected with a limiting block 2301 capable of being clamped with a groove, the surface of the fixing rod 2302 is sleeved with a spring 2303, and two ends of the spring 2303 are fixedly connected to the side wall of the fixing rod 2302 and the inner wall of the inserting shell 23 respectively.

Measure and be provided with the scale that is used for measuring angle on the disc 17, the scale is the loop configuration, and the scale setting is in the bottom edge of accomodating 16, measure the outside edge of disc 17 and offer the loop configuration's annular spout 27, sliding connection has two arc slider 28 on the annular spout 27, the top rigid coupling of arc slider 28 has L type pole 29, the rigid coupling has benchmark board 30 on the tip of L type pole 29, the bottom and the scale surface laminating of benchmark board 30, benchmark board 30 is made by transparent material, benchmark board 30 and L type pole 29's thickness is unanimous, and benchmark board 30 and L type pole 29's thickness is below a millimeter, locating lever 14 and connecting rod 18 are on same vertical line.

In the use, when the topography of circuit is built to the distribution network is built to needs measurement, place required measuring equipment casing on placing intracavity portion's elevating platform 5, when the height of elevating platform 5 is adjusted to needs, through hand wheel 12 rotation lifting threaded rod 6, lifting threaded rod 6 is at the inside rotation of first thread bush, thereby drive elevating platform 5 and move on vertical direction, be convenient for adjust measuring equipment's height, rotate two portable threaded rod 7 in proper order after the adjustment is accomplished, portable threaded rod 7 drives spacing arc board 9 at the inside rotation of second thread bush and presses close to measuring equipment's casing bottom, accomplish the fixing to measuring equipment, two spacing arc boards 9 that utilize the symmetry to set up can fix different measuring equipment, application scope is wider, be convenient for the measurement under the open-air environment.

When the angle between the position is built to adjacent three electricity tower or wire pole of needs measurement, extract fixed pin 13, take off fixed block 11, the locating lever 14 that will constitute middle positioning unit is pegged graft on the overlap joint point in the middle of being located in three position of building, then pull out reference rope 22 through pegging graft shell 23, insert two other locating levers 14 on the overlap joint position that is located the avris, to peg graft shell 23 on peg graft pole 31, stopper 2301 is the card in the groove under spring 2303's effect this moment, position on measuring disc 17 through two reference ropes 22, obtain the contained angle according to the scale, accomplish the measurement to the angle, whole measuring process is comparatively simple, the simultaneous measurement result is comparatively accurate, when reference rope 22 needs to be retrieved, it drives driven pulley 24 and rotates to rotate drive pulley 25, the rolling reference rope 22.

In the process of measuring the angle, the two reference plates 30 are respectively attached to the two reference ropes 22 through the sliding of the arc-shaped sliding block 28 in the annular sliding groove 27, and the reference plates 30 are used for pointing to the scales, so that the reading is assisted, and the data acquisition is facilitated.

The two arc-shaped grooves are arranged in a centrosymmetric manner, so that the reference rope 22 can move in the arc-shaped grooves conveniently, a structural foundation is provided for angle measurement, and the scales on the measuring disc 17 are formed by the scales of two protractors with the measuring range of 180 degrees.

The utility model discloses an useful part lies in:

1. the movable threaded rod 7 drives the limiting arc plates 9 to be close to the bottom of a shell of a measuring device in the self-rotation mode inside the second threaded sleeve, the measuring device is fixed, different measuring devices can be fixed through the two limiting arc plates 9 which are symmetrically arranged, the application range is wide, and the measurement under the field environment is facilitated.

2. To peg graft the shell 23 on the peg graft 31, stopper 2301 card is in the groove under spring 2303's effect this moment, position on measuring disc 17 through two reference ropes 22, obtain the contained angle according to the scale, accomplish the measurement to the angle, whole measurement process is comparatively simple, measuring result is comparatively accurate simultaneously, at the in-process of measuring angle, through the slip of arc slider 28 in annular chute 27, make two reference plates 30 laminate respectively on two reference ropes 22, utilize the directional scale of reference plate 30, thereby supplementary reading, be convenient for acquire data.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a measuring device for power distribution network engineering which characterized in that: the device comprises a placing shell (1) with a columnar structure, wherein a connecting shell (2) is fixedly connected at the center of the bottom of the placing shell (1), a placing cavity capable of placing a measuring instrument is arranged in the placing shell (1), a lifting platform (5) used for placing the instrument is arranged at the center of the inner part of the placing cavity, a guide pipe (4) is sleeved on the outer wall of the lifting platform (5), the guide pipe (4) is fixedly connected on the side wall of the bottom of the placing shell (1), a lifting threaded rod (6) capable of rotating is connected at the bottom of the lifting platform (5), one side of the bottom end of the lifting threaded rod (6) penetrates through the side wall of the placing shell (1) and the connecting shell (2), the bottom end of the lifting threaded rod (6) extends to the bottom of the connecting shell (2), a hand wheel (12) is fixedly connected at the bottom end of the lifting threaded rod (6), and a first thread sleeve is sleeved on the surface thread of the lifting threaded rod (6), the first threaded sleeve is fixedly connected to the side wall of the bottom of the placing shell (1), the bottom of the connecting shell (2) is provided with a tripod (3), and the bottom of the connecting shell (2) is provided with an angle measuring assembly.

2. The measuring device for power distribution network engineering according to claim 1, characterized in that: the top outer wall both sides of placing shell (1) all are provided with fixed unit, two the fixed unit symmetry sets up, fixed unit includes movable threaded rod (7), carriage release lever (8) and spacing arc board (9), movable threaded rod (7) prolong the horizontal direction and run through placing shell (1) lateral wall, but carriage release lever (8) of rotation have been cup jointed on one of them end of movable threaded rod (7), the terminal rigid coupling of carriage release lever (8) has spacing arc board (9), spacing arc board (9) are located places the intracavity, the second thread bushing has been cup jointed to the surface screw thread of movable threaded rod (7), second thread bushing rigid coupling is on placing shell (1) inner wall.

3. The measuring device for power distribution network engineering according to claim 1, characterized in that: the angle measuring assembly comprises a middle positioning unit and two side positioning units, wherein the middle positioning unit and the two side positioning units are matched with each other for use, the middle positioning unit comprises a positioning rod (14) and a calibration assembly (15), the side positioning unit comprises a positioning rod (14) and an insertion rod (31), a fixed block (11) is fixedly connected to the top of the positioning rod (14), the fixed block (11) is inserted into an inner cavity of a fixed shell (10), the fixed shell (10) is fixed on the side wall of the bottom of a placing shell (1), a fixed pin (13) is inserted into the fixed shell (10), and the fixed pin (13) penetrates through the side wall of the fixed shell (10) and is inserted into the fixed block (11).

4. The measuring device for power distribution network engineering according to claim 3, characterized in that: demarcate subassembly (15) including storage case (16), measuring disc (17), connecting rod (18) and rotation shell (19), storage case (16) gomphosis sets up on locating lever (14), the bottom rigid coupling of storage case (16) has measuring disc (17), storage case (16) are the columnar structure, the inside of storage case (16) is provided with two coupling assembling that are centrosymmetric setting.

5. The measuring device for power distribution network engineering according to claim 4, wherein: coupling assembling includes connecting rod (18), rotation shell (19), rolling disc (20), places dish (21) and reference rope (22), the equal rigid coupling in both ends of connecting rod (18) has place dish (21), and one of them places outer wall center department of dish (21) and is connected with rolling disc (20), the surface coating of rolling disc (20) has rotation shell (19), rotation shell (19) rigid coupling is on the inner wall of accomodating shell (16), and the rigid coupling has driven pulley (24) on another outer wall of placing dish (21), driven pulley (24) are connected to on drive pulley (25) through drive belt (26) transmission, drive pulley (25) set up on accomodating shell (16) outer wall.

6. The measuring device for power distribution network engineering according to claim 5, characterized in that: the surface of connecting rod (18) is around having benchmark rope (22), the arc wall that the end of benchmark rope (22) is through accomodating shell (16) surface runs through accomodating shell (16) lateral wall, the terminal rigid coupling of benchmark rope (22) has plug-in shell (23), the arc wall is seted up on accomodating shell (16) lateral wall along the horizontal direction, the central angle of arc wall is between 120 and 270, and two arc walls are central symmetry and set up.

7. The measuring device for power distribution network engineering according to claim 6, characterized in that: an inserting rod (31) is fixedly connected to a positioning rod (14) forming the side positioning unit, the inserting rod (31) is of a square structure, a groove is formed in the surface of the inserting rod (31), and the groove in the inserting rod (31) is connected with the inserting shell (23) in a clamping mode.

8. The measuring device for power distribution network engineering according to claim 7, characterized in that: insert grafting dead lever (2302) on grafting shell (23), dead lever (2302) are crossed and are pegged graft shell (23) lateral wall, the bottom rigid coupling of dead lever (2302) have can with stopper (2301) of recess block, spring (2303) have been cup jointed on the surface of dead lever (2302), the both ends rigid coupling respectively of spring (2303) are on dead lever (2302) lateral wall and grafting shell (23) inner wall.

9. The measuring device for power distribution network engineering according to claim 4, wherein: measure and be provided with the scale that is used for measuring the angle on disc (17), the scale is the loop configuration, and the scale setting is in the bottom edge of accomodating shell (16), the annular spout (27) of loop configuration are seted up to the outside edge of measuring disc (17), sliding connection has two arc slider (28) on annular spout (27), the top rigid coupling of arc slider (28) has L type pole (29), the rigid coupling has benchmark board (30) on the tip of L type pole (29), the bottom and the scale surface laminating of benchmark board (30), benchmark board (30) are made by transparent material, the thickness of benchmark board (30) and L type pole (29) is unanimous, and the thickness of benchmark board (30) and L type pole (29) is below a millimeter, locating lever (14) and connecting rod (18) are on same vertical line.

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