WO2018000178A1

WO2018000178A1 - Pressure resistance testing apparatus for electricity meters

Info

Publication number: WO2018000178A1
Application number: PCT/CN2016/087412
Authority: WO
Inventors: 郑坚江; 张峰峰; 张欢; 梁文晖
Original assignee: 宁波三星电力发展有限公司
Priority date: 2016-06-28
Filing date: 2016-06-28
Publication date: 2018-01-04

Abstract

A pressure resistance testing apparatus for electricity meters, comprising a protective housing (1) and, provided within the protective housing (1), a positioning push-pull mechanism (2), an electric control part, and several testing parts (3), and characterized in that: an input/output opening (4) for electricity meters is provided on the protective housing (1), the positioning push-pull mechanism (2) comprises positioning tooling (5) and push-pull apparatus (6) used for fixing several electricity meters, the testing parts (3) each comprise a lifting/lowering apparatus (9), a test probe (10), and a test probe mount base (11) provided above the corresponding positioning tooling (5), also comprising a test starting apparatus (15), and the push-pull apparatus (6), the lifting/lowering apparatus (9), the test probes (10), and the test starting apparatus (15) being electrically connected to the electric control part. The pressure resistance testing apparatus for electricity meters employs the combination of manual meter mounting and automated testing, is structurally simple, and takes costs and efficiency into consideration at the same time.

Description

Withstand voltage test device for electric energy meter

Technical field

The invention relates to the technical field of an electric energy meter detecting device, and particularly relates to a withstand voltage testing device for an electric energy meter.

Background technique

The traditional voltage test of the electric energy meter is basically manual debugging. Since the electric energy meter for the withstand voltage test needs to work under high pressure, in order to prevent the accident from occurring, the operator must wear high-voltage protective equipment when working on the job. At the same time, the ground is also subjected to high-voltage isolation treatment, which makes the test process cumbersome, safe and efficient.

In response to the above problems, the Chinese utility model patent with the authorization bulletin number CN203630352U discloses an automatic withstand voltage test device for the electric energy meter. Since the device adopts a pipeline operation mode, it is not only required to detect whether the electric energy meter is in place or not, but also When the electric energy meter on the assembly line is transferred to the test part, a more complicated positioning push-pull mechanism is required, which results in high design cost and difficulty in balancing cost and efficiency at the same time.

Summary of the invention

The technical problem to be solved by the present invention is to provide a pressure test device for a power meter that combines manual loading and automatic testing, has a simple structure, and can simultaneously consider cost and efficiency.

The technical solution of the present invention is: a pressure test device for an electric energy meter, comprising a protective casing, a positioning push-pull mechanism disposed in the protective casing, an electric control portion and a plurality of test portions, wherein: the protection The housing is provided with an input and output port of the electric energy meter, and the positioning push-pull mechanism includes a positioning tool and a push-pull device for fixing a plurality of electric energy meters, and the push-pull device is disposed in the protective housing and is connected with the positioning tool for driving and positioning The tooling performs a front-rear displacement movement through an input and output port on the protective casing, each of the test portions including a lifting device, a test probe and a test probe mount disposed above the positioning tool, the test probe being vertical Mounted down on one side of the test probe mount, the lift device is connected to the other side of the test probe mount for driving the test probe to be vertically inserted into each test terminal of the electric energy meter mounted on the positioning tool Also included is a test activation device that is electrically coupled to the electrical control unit.

The working principle of the withstand voltage test device of the electric energy meter of the invention is as follows:

In the natural state, the positioning tool protrudes outside the input and output port of the electric energy meter, and the operator manually installs a plurality of electric energy meters on the positioning tool. After the electric energy meter is installed, the test starting device is triggered to start the automatic testing process, and the electric device is started. The control unit automatically controls the rearward displacement of the push-pull device and the downward displacement of the lifting device. When the push-pull device drives the positioning tool to be displaced backward and the lifting device drives the test probe mount to be displaced downward, the test probe is inserted vertically into the installation. On the test terminals of the electric energy meter on the positioning tool, the withstand voltage test can be automatically completed. After the test is completed, the positioning tool will be self-aligned. Pop up and wait for the next test.

With the above structure, the present invention has the following advantages:

The pressure test device of the electric energy meter of the invention adopts a combination of manual loading and automatic testing, and the manual loading table makes the device not need to detect the detecting device in which the electric energy meter is in place, and only needs to move the electric energy meter to the testing part when the electric energy meter is moved to the testing part A positioning tool for fixing the electric energy meter and a push-pull device for driving the positioning tool to move backward, so that the structure of the positioning push-pull mechanism is very simple, the design cost is greatly reduced, and the electric energy meter is not electrically connected with the electric control unit when manually loading the meter. Connection, there is no safety problem of high voltage electric shock; at the same time, the use of fully automated test process can greatly improve the test efficiency, so that the device is simple in structure, cost and efficiency can be well balanced.

Preferably, the positioning tool comprises a carrier plate, and the upper surface of the carrier plate fixes a plurality of pairs of positioning clips by fasteners along a longitudinal direction, and each pair of positioning clips forms a station for placing an electric energy meter The fixing plate and the fixing portion of the fastener are arranged as a first waist hole for adjusting the spacing of each pair of positioning plates. The positioning tooling structure is simple and the spacing between the positioning clamps of each station is adjustable, which can be applied to the testing requirements of different types of electric energy meters.

Preferably, the front baffle and the tailgate are disposed at each station for limiting the displacement of the electric energy meter, and the front baffle and the rear baffle are fixed to the carrier by a fastener, The front baffle and the rear baffle are fixed to the fastener as a second waist hole for adjusting the spacing between the front baffle and the tailgate. The setting structure is simple and the spacing between the front and rear baffles of each station is adjustable, which can be applied to the testing requirements of different types of electric energy meters.

Preferably, the front surface of the tailgate of each station is further provided with a buffering device. This setting can form a certain buffering force when the electric energy meter is placed, which can prevent the damage of the electric energy meter.

Preferably, the push-pull device is a first cylinder horizontally mounted in the protective casing, the free end of the first cylinder is connected to the bottom of the positioning tool, and the fixed end is fixed in the protective casing. This setting makes the overall structure more compact.

Preferably, the two sides of the first cylinder are respectively symmetrically provided with guiding means. This arrangement makes the front and rear movement of the first cylinder smoother, thus ensuring that the test probe can be accurately aligned with the test terminals of the energy meter.

Preferably, the lifting device is a second cylinder of a three-axis belt guide rod vertically mounted in the protective housing, the free end of the second cylinder is connected to the test probe mounting seat, and the fixed end is fixed in the protective housing. This setting makes the up and down movement of the second cylinder smoother and the position is less likely to be offset, thereby ensuring that the test test probe can be accurately aligned with the test terminal of the electric energy meter.

Preferably, the test probe mount is detachably coupled to the free end of the second cylinder. This setting allows the pressure test of different types of energy meters to be performed by replacing the test probe mounts by setting different test probes on the test probe mount.

Preferably, a first adjustment plate and a second adjustment plate are further disposed between the test probe mount and the free end of the second cylinder, and the lower surface of the first adjustment plate is detachably mounted on the test probe. On the upper surface of the seat, the second adjustment plate The upper surface is fixed on the lower surface of the free end of the second cylinder, and the upper surface of the first adjusting plate and the lower surface of the second adjusting plate are detachably connected by a fastener, the first adjusting plate and the first The connection of one of the two adjustment plates to the fastener is provided as a third waist hole. This setting can be used to adjust the front and rear position of the test probe mount, making the test probe's mounting position more flexible and better able to adapt to the testing needs of a variety of energy meters.

Preferably, the method further includes a connecting plate disposed at a fixed end of each of the second cylinders, and a sliding rail disposed laterally in the protective casing, wherein the connecting plates of the second cylinders are detachably mounted on the sliding by the fasteners Inside the track. This setting can be used to adjust the left and right position of the second cylinder, which is equivalent to adjusting the left and right positions of the test probe mount, so that the mounting position of the test probe is more flexible, and can better adapt to the testing requirements of various electric energy meters.

Preferably, the test activation device is a test button disposed outside the protective housing. Trigger by button, the structure is simple, the trigger mode is reliable, and the cost is low.

BRIEF DESCRIPTION OF THE DRAWINGS:

1 is a front view of a withstand voltage test apparatus of an electric energy meter of the present invention;

2 is a rear view of the pressure test device of the electric energy meter of the present invention with the protective casing removed;

3 is a schematic view showing the structure of the back side of the positioning push-pull mechanism and the test portion according to the present invention;

4 is a schematic front view of the positioning push-pull mechanism and the test portion of the present invention;

Figure 5 is a schematic structural view of a positioning push-pull mechanism of the present invention;

Figure 6 is a schematic structural view of a test portion of the present invention;

In the figure: 1-protective housing, 2-position push-pull mechanism, 3-test part, 4-input and output port, 5-position tooling, 6-pull-pull device, 9-lifting device, 10-test probe, 11-test Probe Mount, 14-Electrical Meter, 15-Test Starter, 16-Loader, 18-Positioning Plate, 19-First Waist Hole, 20-Front, 21-Back, 23-Second Waist hole, 24-buffer, 25-first adjustment plate, 26-second adjustment plate, 28-third waist hole, 29-joint plate, 30-slide, 31-guide.

detailed description

The present invention will be further described below in conjunction with the drawings in conjunction with the embodiments.

Example:

As shown in FIG. 1 to FIG. 6 , a pressure test device for an electric energy meter includes a shield case 1 , a positioning push-pull mechanism 2 disposed in the shield case 1 , an electric control unit, and a plurality of test portions 3 . The utility model is characterized in that: the protective casing 1 is provided with an input and output port 4 of the electric energy meter 14, and the positioning push-pull mechanism 2 comprises a positioning tool 5 and a push-pull device 6 for fixing a plurality of electric energy meters 14, the push-pull device 6 It is disposed in the protective casing 1 and connected to the positioning tool 5 for driving the positioning tool 5 to perform front-rear displacement movement through the input and output port 4 on the protective casing 1, and each of the test portions 3 includes a positioning tool 5 Upper lift The device 9, the test probe 10 and the test probe mount 11, the test probe 10 being mounted vertically on one side of the test probe mount 11, the lift device 9 and the test probe mount 11 The other side is connected for driving the test probe 10 vertically inserted into each test terminal of the electric energy meter 14 mounted on the positioning tool 5, and further comprising a test starting device 15, the push-pull device 6, the lifting device 9, and the test probe Both the 10 and the test activation device 15 are electrically connected to the electrical control unit.

The pressure test device of the electric energy meter of the present invention adopts a combination of manual loading and automatic testing, and the manual loading table makes the device unnecessary to detect whether the electric energy meter 14 is in place, and when the electric energy meter 14 is moved to the testing unit 3 Only one positioning tool 5 for fixing the electric energy meter 14 and the push-pull device 6 for driving the positioning tool 5 to be moved backward are needed, so that the structure of the positioning push-pull mechanism 2 is very simple, the design cost is greatly reduced, and since the manual loading is performed The electric energy meter 14 is not electrically connected to the electric control unit, and there is no safety problem of high-voltage electric shock; at the same time, the fully automated test process can greatly improve the test efficiency, so that the device has a simple structure, cost and efficiency can be well taken care of.

Preferably, the positioning tool 5 comprises a carrier plate 16, the upper surface of the carrier plate 16 is fixed with a plurality of pairs of positioning clips 18 by fasteners in the longitudinal direction, and each pair of positioning clips 18 is formed to be placed one for each other. At the station of the electric energy meter 14, the fixing portion of the positioning cleat 18 and the fastener is disposed as a first waist hole 19 for adjusting the spacing D1 of each pair of positioning splints 18. The arrangement is simple and the spacing D1 between the positioning clamps 18 of each station is adjustable, and the testing requirements of different types of electric energy meters 14 can be applied.

Preferably, a front baffle 20 and a tailgate 21 for restricting the front and rear displacement of the electric energy meter 14 disposed at each station, the front baffle 20 and the rear baffle 21 passing the fastener and the carrier plate are further included The 16-phase is fixed, and the fixing portion of the front baffle 20 and the tailgate 21 and the fastener is disposed as a second waist-shaped hole 23 for adjusting the distance D2 between the front baffle 20 and the tailgate 21. The setting structure is simple and the spacing D2 between the front and

rear baffles

20, 21 of each station is adjustable, and the testing requirements of different types of electric energy meters 14 can be applied.

Preferably, a buffering device 24 is further disposed on the front surface of the tailgate 21 of each station. The setting can form a certain buffering force when the electric energy meter 14 is placed, thereby preventing damage of the electric energy meter.

Preferably, the push-pull device 6 is a first cylinder horizontally mounted in the protective casing 1 in front and rear. The free end of the first cylinder is connected to the bottom of the positioning tool 5, and the fixed end is fixed in the protective casing 1. This setting makes the overall structure more compact.

Preferably, the two sides of the first cylinder are respectively symmetrically provided with guiding means 31, and the guiding means 31 can be used in the prior art. This arrangement makes the front and rear movement of the first cylinder smoother, thereby ensuring that the test test probe 10 can accurately align with the test terminals of the electric energy meter 14.

Preferably, the lifting device 9 is a second cylinder of a three-axis belt guide rod vertically installed in the protective casing 1, the free end of the second cylinder is connected to the test probe mounting seat 11, and the fixed end is fixed at Inside the protective housing 1. This setting makes the up and down movement of the second cylinder smoother and the position is less likely to be offset, thereby ensuring that the test probe 10 can accurately align the test of the electric energy meter 14. Terminal.

Preferably, the test probe mount 11 is detachably coupled to the free end of the second cylinder. This arrangement makes it possible to perform the withstand voltage test of different kinds of the electric energy meters 14 by replacing the test probe mounts 11 as long as different test probes 10 are provided on the test probe mount 11.

Preferably, a first adjusting plate 25 and a second adjusting plate 26 are further disposed between the test probe mounting seat 11 and the free end of the second cylinder, and the lower surface of the first adjusting plate 25 is detachably mounted on On the upper surface of the test probe mount 11, the upper surface of the second adjustment plate 26 is fixed on the lower surface of the free end of the second cylinder, the upper surface of the first adjustment plate 25 and the second adjustment plate 26 The lower surfaces are detachably connected by fasteners, and a connection between one of the first adjustment plate 25 and the second adjustment plate 26 and the fastener is provided as a third waist hole 28. This setting can be used to adjust the front and rear positions of the test probe mount 11, so that the mounting position of the test probe 10 is more flexible and can better adapt to the testing requirements of various electric energy meters 14.

Preferably, further comprising a connecting plate 29 disposed at a fixed end of each of the second cylinders, and a sliding rail 30 disposed laterally in the protective casing 1, the connecting plates 29 of the second cylinders being fastened by fasteners The detachable type is installed in the slide rail 30. The setting can be used to adjust the left and right positions of the second cylinder, that is, to adjust the left and right positions of the test probe mount 11, so that the mounting position of the test probe 10 is more flexible, and can better adapt to the test requirements of various electric energy meters 14. .

Preferably, the test activation device 15 is a test button disposed outside the protective housing 1. Trigger by button, the structure is simple, the trigger mode is reliable, and the cost is low.

The electrical control unit includes a control module that controls the operation of the push-pull device 6 and the lifting device 9, a high-voltage output module and a test module that are electrically connected to the test probe 10. Since the high-voltage output module and the test module are prior art, and the push-pull device 6 and The control of the lifting device 9 is also a prior art, so the electrical control unit is not the invention of the present invention and will not be described again here.

In the natural state, the positioning tool 5 protrudes outside the input and output port 4 of the electric energy meter 14, and the operator manually installs a plurality of electric energy meters 14 on the positioning tool 5. After the electric energy meter 14 is installed, the test starting device 15 is triggered. The automatic test process is started, the electric control unit automatically controls the rearward displacement of the push-pull device 6, and the lifting device 9 is displaced downward. When the push-pull device 6 drives the positioning tool 5 to be displaced backwards and the lifting device 9 drives the test probe mount 11 downward. When the displacement is in place, the test probe 10 is just inserted vertically into each test terminal of the electric energy meter 14 mounted on the positioning tool 5, so that the withstand voltage test can be automatically completed, and the positioning tool 5 automatically pops up, waiting for the next test.

Claims

A pressure test device for an electric energy meter, comprising a protective casing (1), a positioning push-pull mechanism (2) disposed in the protective casing (1), an electric control portion and a plurality of test portions (3), the characteristics thereof The utility model is characterized in that: the protective casing (1) is provided with an input and output port (4) of an electric energy meter (14), and the positioning push-pull mechanism (2) comprises a positioning tool for fixing a plurality of electric energy meters (14) (5) And a push-pull device (6), the push-pull device (6) being disposed in the protective casing (1) and connected to the positioning tool (5) for driving the positioning tool (5) through the input on the protective casing (1) The output port (4) performs a front-rear displacement movement, and each of the test portions (3) includes a lifting device (9), a test probe (10) and a test probe mount disposed above the positioning tool (5) ( 11), the test probe (10) is mounted vertically on one side of the test probe mount (11), and the lifting device (9) is connected to the other side of the test probe mount (11) The driving test probe (10) is vertically inserted into each test terminal of the electric energy meter (14) mounted on the positioning tool (5), and further includes a test starting device (15), the push-pull device (6), lifting Device (9), measurement Both the test probe (10) and the test activation device (15) are electrically connected to the electrical control unit.
A pressure test apparatus for an electric energy meter according to claim 1, wherein said positioning tool (5) comprises a carrier plate (16), and an upper surface of said carrier plate (16) passes in a longitudinal direction The fastener secures a plurality of pairs of positioning splints (18), between each pair of positioning splints (18) forming a station for placing an electric energy meter (14), the positioning splint (18) and the fastener The fixing portion is provided as a first waist hole (19) for adjusting the spacing D1 of each pair of positioning jaws (18).
A withstand voltage testing device for an electric energy meter according to claim 2, further comprising: a front baffle (20) and a rear portion for limiting the displacement of the electric energy meter (14) at each station a baffle (21), the front baffle (20) and the tailgate (21) are fixed to the carrier plate (16) by fasteners, the front baffle (20) and the tailgate (21) and The fixing portion of the fastener is provided as a second waist hole (23) for adjusting the distance D2 between the front baffle (20) and the tailgate (21).
A pressure test apparatus for an electric energy meter according to claim 3, characterized in that the front surface of the tailgate (21) of each station is further provided with a buffering device (24).
The pressure test apparatus for an electric energy meter according to claim 1, wherein the push-pull device (6) is a first cylinder horizontally mounted in the protective casing (1), the first cylinder The free end is connected to the bottom of the positioning tool (5), and the fixed end is fixed in the protective casing (1).
The pressure test apparatus for an electric energy meter according to claim 5, characterized in that: the two sides of the first cylinder are also symmetrically provided with guiding means (31).
A pressure test apparatus for an electric energy meter according to claim 1, wherein said lifting device (9) is a second cylinder of a three-axis guide rod vertically installed in the shield case (1) The free end of the second cylinder is connected to the test probe mounting seat (11), and the fixed end is fixed in the protective housing (1).
A withstand voltage test apparatus for an electric energy meter according to claim 7, wherein said test probe mount (11) is detachably connected to a free end of said second cylinder.
A withstand voltage testing device for an electric energy meter according to claim 8, wherein a first adjusting plate (25) is further disposed between the test probe mounting seat (11) and the free end of the second cylinder. And a second adjustment plate (26), the lower surface of the first adjustment plate (25) is detachably mounted on the upper surface of the test probe mount (11), the second adjustment plate (26) The surface is fixed on the lower surface of the free end of the second cylinder, and the upper surface of the first adjusting plate (25) and the lower surface of the second adjusting plate (26) are detachably connected by a fastener, the A connection between one of the adjustment plate (25) and the second adjustment plate (26) and the fastener is provided as a third waist hole (28).
A withstand voltage testing device for an electric energy meter according to claim 7, further comprising a connecting plate (29) disposed at a fixed end of each of the second cylinders, and a laterally disposed shielding housing (1) A slide rail (30) inside, the connecting plate (29) of each of the second cylinders is detachably mounted in the slide rail (30) by a fastener.