CN112034217A - Electric energy quality testing device of traction power supply system - Google Patents
Electric energy quality testing device of traction power supply system Download PDFInfo
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- CN112034217A CN112034217A CN202010989720.0A CN202010989720A CN112034217A CN 112034217 A CN112034217 A CN 112034217A CN 202010989720 A CN202010989720 A CN 202010989720A CN 112034217 A CN112034217 A CN 112034217A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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Abstract
The invention provides a power quality testing device of a traction power supply system, wherein a first fixing frame and a second fixing frame are arranged outside a body of the testing device; the first fixing frame is provided with a first accommodating groove; a first hinge block and a second hinge block are arranged in the first accommodating groove, the first hinge block is connected with a first connecting rod through a rotating shaft, and the second hinge block is connected with a second connecting rod through a rotating shaft; a second holding tank is arranged on the second fixing frame; a third hinge block and a fourth hinge block are arranged in the second accommodating groove, the third hinge block is connected with a third connecting rod through a rotating shaft, and the fourth hinge block is connected with a fourth connecting rod through a rotating shaft; after the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod rotate around the rotating shaft to a limit angle, the free ends of the four connecting rods are on the same plane and are not on the same straight line to form a supporting structure for supporting the testing device. The device in the above scheme has a self-supporting function, provides convenience for a user, and can effectively ensure the test efficiency.
Description
Technical Field
The invention relates to the technical field of traction power supply systems, in particular to a device for testing the power quality of a traction power supply system.
Background
The traction power supply system is used for converting alternating-current voltage into direct-current 1500V or direct-current 750V voltage through voltage reduction and rectification, and provides traction power supply for the electric train.
The traction power supply system needs to detect electric energy frequently, so an electric energy quality testing device is used. However, most of the traction power supply systems are installed outdoors, so that a user needs to additionally carry tools such as a table board for placing a testing device when carrying the testing device outdoors, which not only brings a great burden to a tester, but also affects testing efficiency.
Disclosure of Invention
The invention aims to provide a power quality testing device of a traction power supply system, and aims to solve the problems of poor convenience and low testing efficiency of the conventional testing device.
To this end, some embodiments of the present invention provide an apparatus for testing power quality of a traction power supply system: a first fixing frame and a second fixing frame are arranged outside the body of the testing device;
a first holding groove is formed in the first fixing frame; a first hinge block and a second hinge block are arranged in the first accommodating groove, the first hinge block is connected with a first connecting rod through a rotating shaft, and the second hinge block is connected with a second connecting rod through a rotating shaft;
a second holding tank is arranged on the second fixing frame; a third hinge block and a fourth hinge block are arranged in the second accommodating groove, the third hinge block is connected with a third connecting rod through a rotating shaft, and the fourth hinge block is connected with a fourth connecting rod through a rotating shaft;
after the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod rotate to a limit angle around the rotating shaft, the free ends of the four connecting rods are on the same plane and are not on the same straight line so as to form a supporting structure for supporting the testing device.
In the device for testing power quality of a traction power supply system according to some embodiments of the present invention, the first fixing frame and the second fixing frame are respectively disposed on two opposite sides of the body, and both the first fixing frame and the second fixing frame include:
the fixing plate and the connecting plates vertically arranged at two ends of the fixing plate, the two connecting plates and the fixing plate define a groove which surrounds the outer side of the body, each connecting plate is provided with a threaded rod, and the threaded rods are in threaded connection with the body.
In the device for testing the power quality of the traction power supply system provided by some embodiments of the present invention, the first accommodating groove is formed in a surface of the first fixing frame facing away from the body; the second accommodating groove is formed in one surface, back to the body, of the second fixing frame.
According to the electric energy quality testing device for the traction power supply system provided by the embodiment of the invention, the first adjusting frame and the second adjusting frame are arranged on two sides in the first accommodating groove, and the tops of the first adjusting frame and the second adjusting frame are abutted to the first accommodating groove; one end, opposite to the second connecting rod, of the first connecting rod extends into the first adjusting frame and is in contact with the inner wall of the first adjusting frame, and a first threaded sleeve is sleeved at one end, close to the first hinge block, of the first connecting rod; one end, opposite to the first connecting rod, of the second connecting rod extends into the second adjusting frame and is in contact with the inner wall of the second adjusting frame, and a second threaded sleeve is sleeved at one end, close to the second hinge block, of the second connecting rod;
a third adjusting frame and a fourth adjusting frame are arranged on two sides in the second accommodating groove, and the tops of the third adjusting frame and the fourth adjusting frame are abutted to the second accommodating groove; one end, opposite to the fourth connecting rod, of the third connecting rod extends into the second adjusting frame and is in contact with the inner wall of the third adjusting frame, and a third threaded sleeve is sleeved at one end, close to the third hinge block, of the third connecting rod; the fourth connecting rod with the one end that the third connecting rod is relative extends to inside and with the contact of fourth alignment jig inner wall of fourth alignment jig, the fourth connecting rod is close to an pot head of the articulated piece of fourth is equipped with the fourth thread bush.
According to the device for testing the electric energy quality of the traction power supply system, provided by one part of embodiments of the invention, the first threaded sleeve is fixedly arranged on the inner wall of the first adjusting frame and is in threaded connection with the first connecting rod; the second threaded sleeve is fixedly arranged on the inner wall of the first adjusting frame and is in threaded connection with the second connecting rod;
the third threaded sleeve is fixedly arranged on the inner wall of the second adjusting frame and is in threaded connection with the third connecting rod; the fourth threaded sleeve is fixedly arranged on the inner wall of the second adjusting frame and is in threaded connection with the fourth connecting rod.
In the device for testing the electric energy quality of the traction power supply system according to some embodiments of the present invention, anti-slip pads are integrally formed on both sides of the first adjusting frame opposite to the second adjusting frame, and anti-slip pads are integrally formed on both sides of the third adjusting frame opposite to the fourth adjusting frame.
In the power quality testing device for the traction power supply system, provided by some embodiments of the present invention, in the first accommodating tank, a first baffle is disposed between the first adjusting bracket and the second adjusting bracket, the first baffle is disposed in the first accommodating tank through a rotating shaft, and when the first baffle rotates to a direction parallel to the first adjusting bracket and the second adjusting bracket, the first baffle presses on anti-skid pads of the first adjusting bracket and the second adjusting bracket;
in the second holding tank, a second baffle is arranged at a position between the third adjusting frame and the fourth adjusting frame, the second baffle is arranged in the second holding tank through a rotating shaft, and when the second baffle rotates to a direction parallel to the third adjusting frame and the fourth adjusting frame, the second baffle presses on the anti-skid pads of the third adjusting frame and the fourth adjusting frame.
According to the device for testing the power quality of the traction power supply system, at least one surface of the body is provided with at least one group of rubber ribs, and each group of rubber ribs is arranged symmetrically to the central axis of the surface.
According to the device for testing the electric energy quality of the traction power supply system, provided by the embodiment of the invention, at least one protection frame is arranged on the body, and the arrangement surface of the protection frame is opposite to the arrangement surfaces of the first fixing frame and the second fixing frame.
In the device for testing the power quality of the traction power supply system provided by some embodiments of the present invention, a plurality of rubber bumps are integrally formed on the outer surface of each of the protection frames.
Compared with the prior art, the technical scheme provided by the embodiment of the invention at least has the following beneficial effects:
according to the electric energy quality testing device for the traction power supply system, the first fixing frame and the second fixing frame are respectively provided with the accommodating groove, the four connecting rods are arranged in the accommodating groove in a hinged and rotating mode, and the four connecting rods can form a supporting structure after being opened to support the testing device. Therefore, the device has a self-supporting function, a user does not need to additionally carry the supporting device to support the device, the occurrence burden of the user is greatly reduced, convenience is provided for the user, and the testing efficiency can be effectively guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a power quality testing device of a traction power supply system according to an embodiment of the present invention;
FIG. 2 is a schematic view of an internal structure of the fixing frame according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a schematic structural diagram of a protective frame according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a power quality testing apparatus of a traction power supply system according to another embodiment of the present invention.
Wherein the reference numerals are:
101-a body; 102-a fixed mount; 103-a threaded rod; 104-testing the display screen; 105-a jack; 106-accommodating grooves; 107-hinged block; 108-a connecting rod; 109-an adjusting frame; 110-a threaded sleeve; 111-rubber ribs; 112-a protective frame; 113-a non-slip mat; 114-a baffle; 115-rubber bumps.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the following embodiments provided in the present application, unless mutually contradictory, different technical solutions may be mutually combined, and technical features thereof may be mutually replaced.
The embodiment provides a power quality testing device for a traction power supply system, as shown in fig. 1, a fixing frame 102 is arranged outside a body 101 of the testing device, wherein the fixing frame 102 includes a first fixing frame and a second fixing frame; referring to fig. 2 and 3, the fixing frame 102 has a receiving groove 106; be provided with a pair of articulated piece 107 in the holding tank 106, articulated piece 107 is connected with connecting rod 108 through the pivot, connecting rod 108 is the threaded connection pole. Specifically, a first accommodating groove is formed in the first fixing frame shown in the figure; a first hinge block and a second hinge block are arranged in the first accommodating groove, the first hinge block is connected with a first connecting rod through a rotating shaft, and the second hinge block is connected with a second connecting rod through a rotating shaft; a second holding tank is arranged on the second fixing frame; a third hinge block and a fourth hinge block are arranged in the second accommodating groove, the third hinge block is connected with a third connecting rod through a rotating shaft, and the fourth hinge block is connected with a fourth connecting rod through a rotating shaft; after the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod rotate to a limit angle around the rotating shaft, the free ends of the four connecting rods are on the same plane and are not on the same straight line so as to form a supporting structure for supporting the testing device. Fig. 1 is a schematic view of the four connecting rods 108 unfolded to form a supporting structure for supporting the body 101.
The electric energy quality testing device of the traction power supply system in the scheme comprises a first fixing frame, a second fixing frame, a supporting structure and a containing groove, wherein the containing groove is formed in the first fixing frame and the second fixing frame, four connecting rods are arranged in the containing groove in a hinged rotating mode, and the four connecting rods can form the supporting structure to support the testing device after being opened. Therefore, the device has a self-supporting function, a user does not need to additionally carry the supporting device to support the device, the occurrence burden of the user is greatly reduced, convenience is provided for the user, and the testing efficiency can be effectively guaranteed.
Preferably, in the above solution, as shown in fig. 2 and 3, the adjusting frame 109 is disposed on two sides inside the receiving groove 106, and the top of the adjusting frame 109 abuts against the receiving groove 106; one end of the connecting rod 108 extends to the inside of the adjusting frame 109 and contacts with the inner wall of the adjusting frame 109, and one end of the connecting rod 108 close to the hinge block 107 is provided with a threaded sleeve 110. Further, in the above solution, the threaded sleeve 110 is fixedly disposed on the inner wall of the adjusting bracket 109, and the threaded sleeve 110 is in threaded connection with the connecting rod 108.
Specifically, referring to fig. 1, a first adjusting frame and a second adjusting frame are disposed on two sides of the first accommodating groove, and tops of the first adjusting frame and the second adjusting frame are abutted to the first accommodating groove; one end, opposite to the second connecting rod, of the first connecting rod extends into the first adjusting frame and is in contact with the inner wall of the first adjusting frame, and a first threaded sleeve is sleeved at one end, close to the first hinge block, of the first connecting rod; one end, opposite to the first connecting rod, of the second connecting rod extends into the second adjusting frame and is in contact with the inner wall of the second adjusting frame, and a second threaded sleeve is sleeved at one end, close to the second hinge block, of the second connecting rod; a third adjusting frame and a fourth adjusting frame are arranged on two sides in the second accommodating groove, and the tops of the third adjusting frame and the fourth adjusting frame are abutted to the second accommodating groove; one end, opposite to the fourth connecting rod, of the third connecting rod extends into the second adjusting frame and is in contact with the inner wall of the third adjusting frame, and a third threaded sleeve is sleeved at one end, close to the third hinge block, of the third connecting rod; the fourth connecting rod with the one end that the third connecting rod is relative extends to inside and with the contact of fourth alignment jig inner wall of fourth alignment jig, the fourth connecting rod is close to an pot head of the articulated piece of fourth is equipped with the fourth thread bush.
The first threaded sleeve is fixedly arranged on the inner wall of the first adjusting frame and is in threaded connection with the first connecting rod; the second threaded sleeve is fixedly arranged on the inner wall of the first adjusting frame and is in threaded connection with the second connecting rod; the third threaded sleeve is fixedly arranged on the inner wall of the second adjusting frame and is in threaded connection with the third connecting rod; the fourth threaded sleeve is fixedly arranged on the inner wall of the second adjusting frame and is in threaded connection with the fourth connecting rod.
In the above scheme, the effect of adjusting the supporting height can be realized by arranging the connecting rod 108 and the threaded sleeve 110 in a threaded connection manner.
Further, as shown in fig. 2, in the above solution, a non-slip pad 113 is integrally formed on the opposite side of each adjusting bracket 109 in the receiving groove 106 of each fixing bracket 102. Specifically, the anti-slip mat is arranged on one side, opposite to the first adjusting frame and the second adjusting frame, of the first adjusting frame in an integrated forming mode, and the anti-slip mat is arranged on one side, opposite to the third adjusting frame and the fourth adjusting frame, of the third adjusting frame in an integrated forming mode. After the adjusting frame 109 is supported, the bottom of the adjusting frame 109 is provided with the anti-slip pad to ensure the supporting stability.
Preferably, as shown in fig. 2, a baffle plate 114 is disposed in the receiving groove 106 at a position between the two adjusting brackets 109, the baffle plate 114 is disposed in the receiving groove 106 via a rotating shaft, and when the baffle plate 114 rotates to a direction parallel to the adjusting brackets 109, the baffle plate presses on the non-slip mat 113; specifically, in the first accommodating groove, a first baffle is arranged between the first adjusting frame and the second adjusting frame, the first baffle is arranged in the first accommodating groove through a rotating shaft, and when the first baffle rotates to a direction parallel to the first adjusting frame and the second adjusting frame, the first baffle presses on anti-skid pads of the first adjusting frame and the second adjusting frame; in the second holding tank, a second baffle is arranged at a position between the third adjusting frame and the fourth adjusting frame, the second baffle is arranged in the second holding tank through a rotating shaft, and when the second baffle rotates to a direction parallel to the third adjusting frame and the fourth adjusting frame, the second baffle presses on the anti-skid pads of the third adjusting frame and the fourth adjusting frame.
Device in the above scheme, when the tester need support testing arrangement, the user twists baffle 114 earlier, twist baffle 114 to the position parallel with two slipmats 113, thereby relieve spacing to alignment jig 109, later overturn two alignment jig 109 from receiving tank 106 in, later rotate alignment jig 109 and drive thread bush 110 and rotate downwards on threaded connection pole 108, thereby highly extend alignment jig 109, let the user can adjust this device to suitable height and use, through receiving tank 106, connecting rod 108, alignment jig 109 and baffle 114's design, make this device have from the function of support, need not the user and additionally carry strutting arrangement to support this device, very big reduction user's appearance burden, facilitate for the user.
Further preferably, referring to fig. 4 and 5, at least one protection frame 112 is disposed on the body 101, and a disposition surface of the protection frame 112 faces away from disposition surfaces of the first fixing frame and the second fixing frame (i.e., the fixing frame 102). Wherein, a plurality of rubber bumps 115 are integrally formed on the outer surface of each protection frame 112. As shown in fig. 5, four protection frames 112 are provided, and the specific number can be adjusted according to the actual scene. When this device if fall down from the both sides direction that figure 5 shows or top direction, through the design of protection frame 112, wrap up this device, reduce this device and directly carry out hard collision with ground, through rubber bump 115's setting, the vibrations that produce when absorbing the striking reduce the damage that vibrations caused this device.
In addition, at least one surface of the body 101 is provided with at least one set of rubber ribs 111, and each set of rubber ribs 111 is arranged symmetrically to the central axis of the surface. Such as the configuration shown in fig. 5, wherein a set of rubber ribs 111 protect the test display 104 and the jack 105. When this device falls from the fore-and-aft direction as shown in fig. 5, through the setting of rubber bead 111, make the front and back surface of this device when falling, rubber bead 111 can collide with ground earlier, makes the front and back surface of this device unable and ground contact to form the protection. That is to say, the top surface and the side surface of the body 101 are surrounded by the protective frame 112, and the rubber ribs 111 are arranged on the rest of the other surfaces, so that the body 101 is protected in an all-around manner, the device has good protective performance, and the device can be protected in an all-around manner.
Because this device is used in the open air mostly, drops easily when carrying, transport and detection operation, consequently the testing arrangement in the current scheme is often broken and is damaged the going on that influences test procedure. And the scheme in this application embodiment, through the very big probability that has reduced the device and is broken of improvement of above-mentioned structure, the user's that has not only reduced loss more can effectually guarantee that the user operation progress can not receive the influence, has improved the practicality of this device, has satisfied user's user demand.
Further, as shown in fig. 1 and 5, two fixing frames 102 (a first fixing frame and a second fixing frame) are disposed on opposite sides of the body 101, and each fixing frame 102 includes a fixing plate and connecting plates perpendicularly disposed at two ends of the fixing plate, the two connecting plates and the fixing plate define a groove surrounding the outer side of the body 101, each connecting plate is provided with a threaded rod 103, and the threaded rod 103 is in threaded connection with the body 101. In the above scheme, the first accommodating groove is formed in a surface of the first fixing frame, which faces away from the body; the second accommodating groove is formed in one surface, back to the body, of the second fixing frame. The fixing frame 102 is arranged through threaded connection, so that the fixing frame is convenient to disassemble, and when a supporting structure inside the fixing frame breaks down, the fixing frame can be conveniently maintained or replaced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a draw power supply system electric energy quality testing arrangement which characterized in that:
a first fixing frame and a second fixing frame are arranged outside the body of the testing device;
a first holding groove is formed in the first fixing frame; a first hinge block and a second hinge block are arranged in the first accommodating groove, the first hinge block is connected with a first connecting rod through a rotating shaft, and the second hinge block is connected with a second connecting rod through a rotating shaft;
a second holding tank is arranged on the second fixing frame; a third hinge block and a fourth hinge block are arranged in the second accommodating groove, the third hinge block is connected with a third connecting rod through a rotating shaft, and the fourth hinge block is connected with a fourth connecting rod through a rotating shaft;
after the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod rotate to a limit angle around the rotating shaft, the free ends of the four connecting rods are on the same plane and are not on the same straight line so as to form a supporting structure for supporting the testing device.
2. The traction power supply system power quality testing device according to claim 1, characterized in that:
first mount with the second mount set up respectively in the relative both sides of body, just first mount with the second mount all includes:
the fixing plate and the connecting plates vertically arranged at two ends of the fixing plate, the two connecting plates and the fixing plate define a groove which surrounds the outer side of the body, each connecting plate is provided with a threaded rod, and the threaded rods are in threaded connection with the body.
3. The traction power supply system power quality testing device according to claim 2, characterized in that:
the first accommodating groove is formed in one surface, back to the body, of the first fixing frame; the second accommodating groove is formed in one surface, back to the body, of the second fixing frame.
4. The traction power supply system power quality testing device according to any one of claims 1 to 3, characterized in that:
a first adjusting frame and a second adjusting frame are arranged on two sides in the first accommodating groove, and the tops of the first adjusting frame and the second adjusting frame are abutted to the first accommodating groove; one end, opposite to the second connecting rod, of the first connecting rod extends into the first adjusting frame and is in contact with the inner wall of the first adjusting frame, and a first threaded sleeve is sleeved at one end, close to the first hinge block, of the first connecting rod; one end, opposite to the first connecting rod, of the second connecting rod extends into the second adjusting frame and is in contact with the inner wall of the second adjusting frame, and a second threaded sleeve is sleeved at one end, close to the second hinge block, of the second connecting rod;
a third adjusting frame and a fourth adjusting frame are arranged on two sides in the second accommodating groove, and the tops of the third adjusting frame and the fourth adjusting frame are abutted to the second accommodating groove; one end, opposite to the fourth connecting rod, of the third connecting rod extends into the second adjusting frame and is in contact with the inner wall of the third adjusting frame, and a third threaded sleeve is sleeved at one end, close to the third hinge block, of the third connecting rod; the fourth connecting rod with the one end that the third connecting rod is relative extends to inside and with the contact of fourth alignment jig inner wall of fourth alignment jig, the fourth connecting rod is close to an pot head of the articulated piece of fourth is equipped with the fourth thread bush.
5. The traction power supply system power quality testing device according to claim 4, characterized in that:
the first threaded sleeve is fixedly arranged on the inner wall of the first adjusting frame and is in threaded connection with the first connecting rod; the second threaded sleeve is fixedly arranged on the inner wall of the first adjusting frame and is in threaded connection with the second connecting rod;
the third threaded sleeve is fixedly arranged on the inner wall of the second adjusting frame and is in threaded connection with the third connecting rod; the fourth threaded sleeve is fixedly arranged on the inner wall of the second adjusting frame and is in threaded connection with the fourth connecting rod.
6. The traction power supply system power quality testing device according to claim 5, characterized in that:
the anti-skid device is characterized in that anti-skid pads are arranged on one sides, opposite to the first adjusting frame and the second adjusting frame, of the first adjusting frame in an integrated forming mode, and anti-skid pads are arranged on one sides, opposite to the third adjusting frame and the fourth adjusting frame, of the third adjusting frame in an integrated forming mode.
7. The traction power supply system power quality testing device according to claim 6, characterized in that:
in the first accommodating groove, a first baffle is arranged between the first adjusting frame and the second adjusting frame, the first baffle is arranged in the first accommodating groove through a rotating shaft, and when the first baffle rotates to a direction parallel to the first adjusting frame and the second adjusting frame, the first baffle presses on anti-skid pads of the first adjusting frame and the second adjusting frame;
in the second holding tank, a second baffle is arranged at a position between the third adjusting frame and the fourth adjusting frame, the second baffle is arranged in the second holding tank through a rotating shaft, and when the second baffle rotates to a direction parallel to the third adjusting frame and the fourth adjusting frame, the second baffle presses on the anti-skid pads of the third adjusting frame and the fourth adjusting frame.
8. The traction power supply system power quality testing device according to any one of claims 1 to 3, characterized in that:
at least one surface of the body is provided with at least one group of rubber convex edges, and each group of rubber convex edges are arranged symmetrically to the central axis of the surface.
9. The traction power supply system power quality testing device according to claim 8, characterized in that:
the body is provided with at least one protection frame, and the arrangement surface of the protection frame is back to the arrangement surfaces of the first fixing frame and the second fixing frame.
10. The traction power supply system power quality testing device according to claim 9, characterized in that:
the outer surface of each protection frame is integrally formed with a plurality of rubber bumps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010989720.0A CN112034217B (en) | 2020-09-18 | 2020-09-18 | Traction power supply system electric energy quality testing device |
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| CN202010989720.0A CN112034217B (en) | 2020-09-18 | 2020-09-18 | Traction power supply system electric energy quality testing device |
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| CN112034217B CN112034217B (en) | 2023-08-18 |
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| CN107322553A (en) * | 2017-08-28 | 2017-11-07 | 安徽奥丰汽车配件有限公司 | A kind of tow ball arm tool case |
| CN108488587A (en) * | 2018-06-13 | 2018-09-04 | 山东飞天激光光电科技有限公司 | A kind of scanner laser detector with height adjusting function |
| CN209542656U (en) * | 2018-10-10 | 2019-10-25 | 广东创锐电子技术股份有限公司 | A kind of current limits life test protective device |
| CN209208651U (en) * | 2018-10-18 | 2019-08-06 | 江苏鸿运汽车科技有限公司 | Vehicle-mounted quick pull platform |
| CN209950626U (en) * | 2018-12-13 | 2020-01-17 | 临海市尚莱休闲用品有限公司 | Foldable table |
| CN209296819U (en) * | 2018-12-15 | 2019-08-23 | 深圳市斯帕特科技有限公司 | A kind of insulation electromagnetic radiation detector bracket |
| CN209315178U (en) * | 2018-12-27 | 2019-08-30 | 南昌师范学院 | A kind of portable folding outdoor table |
| CN209728083U (en) * | 2019-03-26 | 2019-12-03 | 崔兆洋 | A kind of tractive power supply system electric energy quality test device |
| CN210036805U (en) * | 2019-05-28 | 2020-02-07 | 天津鼎燕科技有限公司 | Support frame for environmental monitoring convenient to accomodate and carry |
| CN211048684U (en) * | 2019-07-18 | 2020-07-21 | 金华浩阳休闲用品有限公司 | Area-variable telescopic table |
| CN211453858U (en) * | 2019-08-31 | 2020-09-08 | 中环柯昂(北京)科技有限公司 | System circuit fault detection device |
| CN211148727U (en) * | 2019-11-11 | 2020-07-31 | 苏州顺恩电子设备有限公司 | Electronic equipment maintenance is with setting up testing arrangement |
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