CN210629084U - Leakage protection device of electro-hydraulic servo pull rod hydraulic cylinder - Google Patents
Leakage protection device of electro-hydraulic servo pull rod hydraulic cylinder Download PDFInfo
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- CN210629084U CN210629084U CN201922000630.XU CN201922000630U CN210629084U CN 210629084 U CN210629084 U CN 210629084U CN 201922000630 U CN201922000630 U CN 201922000630U CN 210629084 U CN210629084 U CN 210629084U
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- protection device
- leakage protection
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- main part
- earth leakage
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Abstract
The utility model discloses an electric leakage protection device of servo pull rod pneumatic cylinder of electricity liquid, including the earth leakage protection device main part, the one end surface of earth leakage protection device main part is drawn empty and is provided with the wiring hole, the outside in wiring hole is provided with dampproofing mechanism, the front end of earth leakage protection device main part is provided with test button, fixed establishment is installed to the rear end of earth leakage protection device main part, the inside one end in wiring hole is connected with the wire. A leakage protection device of servo pull rod pneumatic cylinder of electricity liquid, leakage protection device is fixed more firm, and the installation is all more convenient with the dismantlement, easily dismantles the maintenance to leakage protection device, prevents that wire and leakage protection device's junction from weing the electric leakage, uses safelyr.
Description
Technical Field
The utility model relates to an earth leakage protection technical field, in particular to electric leakage protection device of servo pull rod pneumatic cylinder of electricity liquid.
Background
When the leakage current of a circuit or electric equipment is larger than the setting value of the device or when people and animals are in danger of electric shock, the leakage protector can rapidly act to cut off an accident power supply, so that the accident is avoided from being enlarged, the safety of the people and the equipment is ensured, and the leakage protector can be connected with an electrohydraulic servo pull rod hydraulic cylinder through a lead to protect the leakage protector; the existing leakage protection device has some defects, firstly, the leakage protection device is fixedly installed on a wall surface, after the leakage protection device is damaged, the installation and the disassembly are troublesome, the leakage protection device is inconvenient to maintain, secondly, the connection part between a lead and the leakage protection device is easy to be affected with damp in a humid environment, and accidents can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides an electric leakage protection device of servo pull rod pneumatic cylinder of electricity liquid can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an earth leakage protection device of servo pull rod pneumatic cylinder of electricity liquid, includes the earth leakage protection device main part, the one end surface of earth leakage protection device main part is hollowed and is provided with the wiring hole, the outside in wiring hole is provided with dampproofing mechanism, the front end of earth leakage protection device main part is provided with test button, fixed establishment is installed to the rear end of earth leakage protection device main part, the inside one end in wiring hole is connected with the wire.
Preferably, dampproofing mechanism includes connecting plate, the fixed pipe of external screw thread, internal thread sleeve pipe, through-hole, the connecting plate is hollow circular rubber slab, the internal diameter of connecting plate is greater than the diameter in wiring hole, be provided with the gluing agent between connecting plate and the earth-leakage protection device main part, the surface of connecting plate passes through the one end external fixed surface of gluing agent and earth-leakage protection device main part to be connected, the one end of connecting plate is provided with the fixed pipe of external screw thread, the one end external fixed surface of the fixed pipe of external screw thread is connected with the one end external fixed surface of connecting plate.
Preferably, the outside of the fixed pipe of external screw thread is provided with the internal thread sleeve pipe, the internal surface of internal thread sleeve pipe passes through threaded connection with the surface of the fixed pipe of external screw thread, the one end surface of internal thread sleeve pipe is dug out and is provided with the through-hole, the diameter of through-hole is greater than the diameter of wire, the through-hole is located the sheathed tube central point of internal screw thread and puts.
Preferably, fixed establishment includes mounting panel, slide, draw-in groove, fixed plate, the inside of mounting panel is run through and is provided with four sets of expansion bolts, the front end of mounting panel is provided with the slide, the rear end surface of slide and the front end fixed surface of mounting panel are connected, the slide is L shape, the outside of slide is provided with the draw-in groove, the internal surface of draw-in groove and the surface swing joint of slide, the front end welding of draw-in groove is provided with the fixed plate, the front end surface of fixed plate and the rear end fixed surface of earth leakage protection device main part are connected, one side of the inside earth leakage protection device main part of slide is provided with the fixed pin, fixed pin and draw-in groove swing joint.
Preferably, the wire passes through wiring hole and earth leakage protection device main part fixed connection, the front end of earth leakage protection device main part is provided with miniature fixed screw near the below of test button, miniature fixed screw and earth leakage protection device main part fixed connection.
Preferably, the rear end of the test button is fixedly connected with the front end of the leakage protection device main body, and a protection switch is arranged above the front end of the leakage protection device main body, which is close to the test button.
Compared with the prior art, the utility model discloses following beneficial effect has: the leakage protection device of the electro-hydraulic servo pull rod hydraulic cylinder is characterized in that a mounting plate is fixed on a wall surface through an expansion bolt, a clamping groove is sleeved on the outer side of a sliding plate, a fixing pin is inserted into the sliding plate, a main body of the leakage protection device is further mounted on the wall surface, the fixing is firm, the mounting and the dismounting are convenient, the main body of the leakage protection device is easy to dismount and maintain, the main body of the leakage protection device is not directly contacted with the wall surface, the rear part of the main body of the leakage protection device is prevented from being affected with damp, a lead passes through a through hole to be connected with a wiring hole, an internal thread sleeve is screwed on the outer side of an external thread fixing pipe, the external thread fixing pipe is further fixed outside the joint of the lead and the main body of the leakage protection device, moisture can be reduced from entering the wiring hole through a connecting plate and the internal thread sleeve, the connecting plate, the use is safer, and the use effect is better than that of the traditional mode.
Drawings
Fig. 1 is a schematic view of the overall structure of the leakage protection device of the electro-hydraulic servo pull rod hydraulic cylinder of the present invention;
fig. 2 is a schematic structural view of a moisture-proof mechanism of the leakage protection device of the electro-hydraulic servo pull rod hydraulic cylinder of the present invention;
fig. 3 is an explosion schematic view of the moisture-proof mechanism of the leakage protection device of the electro-hydraulic servo pull rod hydraulic cylinder of the present invention;
fig. 4 is an explosion diagram of the fixing mechanism of the leakage protection device of the electro-hydraulic servo pull rod hydraulic cylinder of the present invention.
In the figure: 1. a leakage protection device main body; 2. a wiring hole; 3. a moisture-proof mechanism; 31. a connecting plate; 32. an external thread fixing pipe; 33. an internally threaded sleeve; 34. a through hole; 4. a micro fixing screw; 5. a test button; 6. a protection switch; 7. a fixing mechanism; 71. mounting a plate; 72. a slide plate; 73. a card slot; 74. a fixing plate; 75. a fixing pin; 76. an expansion bolt; 8. and (4) conducting wires.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-4, an electric leakage protection device of an electro-hydraulic servo pull rod hydraulic cylinder comprises an electric leakage protection device main body 1, wherein a wiring hole 2 is formed in the outer surface of one end of the electric leakage protection device main body 1 in a hollowed mode, a moisture-proof mechanism 3 is arranged on the outer side of the wiring hole 2, a test button 5 is arranged at the front end of the electric leakage protection device main body 1, a fixing mechanism 7 is installed at the rear end of the electric leakage protection device main body 1, and a wire 8 is connected to one end inside the wiring hole 2.
Moisture-proof mechanism 3 includes connecting plate 31, the fixed pipe 32 of external screw thread, internal thread sleeve pipe 33, through-hole 34, connecting plate 31 is hollow circular rubber slab, the internal diameter of connecting plate 31 is greater than the diameter in wiring hole 2, be provided with the gluing agent between connecting plate 31 and the earth leakage protection device main part 1, the one end external fixed surface that gluing agent and earth leakage protection device main part 1 were passed through to the surface of connecting plate 31 is connected, the one end of connecting plate 31 is provided with the fixed pipe 32 of external screw thread, the one end surface of the fixed pipe 32 of external screw thread and the one end external fixed surface of.
An internal thread sleeve 33 is arranged on the outer side of the external thread fixing pipe 32, the inner surface of the internal thread sleeve 33 is in threaded connection with the outer surface of the external thread fixing pipe 32, a through hole 34 is formed in the outer surface of one end of the internal thread sleeve 33 in a hollowed mode, the diameter of the through hole 34 is larger than that of the lead 8, and the through hole 34 is located in the center of the internal thread sleeve 33.
The fixing mechanism 7 comprises a mounting plate 71, a sliding plate 72, a clamping groove 73 and a fixing plate 74, four groups of expansion bolts 76 are arranged inside the mounting plate 71 in a penetrating mode, the sliding plate 72 is arranged at the front end of the mounting plate 71, the outer surface of the rear end of the sliding plate 72 is fixedly connected with the outer surface of the front end of the mounting plate 71, the sliding plate 72 is L-shaped, the clamping groove 73 is arranged on the outer side of the sliding plate 72, the inner surface of the clamping groove 73 is movably connected with the outer surface of the sliding plate 72, the fixing plate 74 is welded at the front end of the clamping groove 73, the outer surface of the front end of the fixing plate 74 is fixedly connected with the outer surface of the rear end of the leakage protection device body 1.
The wire 8 is fixedly connected with the leakage protection device main body 1 through the wiring hole 2, a miniature fixing screw 4 is arranged below the front end of the leakage protection device main body 1 close to the test button 5, and the miniature fixing screw 4 is fixedly connected with the leakage protection device main body 1.
The rear end of the test button 5 is fixedly connected with the front end of the leakage protection device main body 1, and a protection switch 6 is arranged above the front end of the leakage protection device main body 1, close to the test button 5.
It should be noted that, the present invention is an electric leakage protection device for an electro-hydraulic servo pull rod hydraulic cylinder, wherein a user fixes a mounting plate 71 on a wall surface through an expansion bolt 76, sleeves a slot 73 on the outer side of a sliding plate 72, inserts a fixing pin 75 into the sliding plate 72, and further installs an electric leakage protection device main body 1 on the wall surface, connects one end of a lead 8 with a wiring hole 2 through a through hole 34, and connects the other end of the lead 8 with the electro-hydraulic servo pull rod hydraulic cylinder, screws an internal thread bushing 33 on the outer side of an external thread fixing tube 32, and further fixes the external thread fixing tube 32 outside the connection between the lead 8 and the electric leakage protection device main body 1, and can reduce moisture entering the wiring hole 2 through a connecting plate 31 and the internal thread bushing 33, and the connecting plate 31 is made of rubber material, and has good sealing performance, and prevents the connection between the lead 8 and the electric leakage protection device, pressing test button 5 under the circular telegram condition and observing whether protection switch 6 can normally work, protection switch 6 can trip when the servo pull rod pneumatic cylinder of electricity liquid leaks electricity, and then protects the servo pull rod pneumatic cylinder of electricity liquid, has surpassed traditional earth leakage protection device on the use prospect, and is comparatively practical.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an electric leakage protection device of servo pull rod pneumatic cylinder of electricity liquid, includes electric leakage protection device main part (1), its characterized in that: the one end surface of earth leakage protection device main part (1) is drawn empty and is provided with wiring hole (2), the outside in wiring hole (2) is provided with dampproofing mechanism (3), the front end of earth leakage protection device main part (1) is provided with test button (5), fixed establishment (7) are installed to the rear end of earth leakage protection device main part (1), the inside one end in wiring hole (2) is connected with wire (8).
2. An earth leakage protection device for an electro-hydraulic servo-rod hydraulic cylinder as claimed in claim 1, wherein: dampproofing mechanism (3) are including connecting plate (31), the fixed pipe of external screw thread (32), internal thread sleeve pipe (33), through-hole (34), connecting plate (31) are hollow circular rubber slab, the internal diameter of connecting plate (31) is greater than the diameter in wiring hole (2), be provided with the gluing agent between connecting plate (31) and earth-leakage protection device main part (1), the surface of connecting plate (31) passes through the one end external surface fixed connection of gluing agent with earth-leakage protection device main part (1), the one end of connecting plate (31) is provided with the fixed pipe of external screw thread (32), the one end external surface of the fixed pipe of external screw thread (32) is connected with the one end external surface fixed connection of connecting plate (31).
3. An earth leakage protection device for an electro-hydraulic servo-rod hydraulic cylinder as claimed in claim 2, wherein: the outside of the fixed pipe of external screw thread (32) is provided with internal thread sleeve pipe (33), threaded connection is passed through with the surface of the fixed pipe of external screw thread (32) to the internal surface of internal thread sleeve pipe (33), the one end surface of internal thread sleeve pipe (33) is dug out and is provided with through-hole (34), the diameter of through-hole (34) is greater than the diameter of wire (8), through-hole (34) are located the central point of internal thread sleeve pipe (33) and put.
4. An earth leakage protection device for an electro-hydraulic servo-rod hydraulic cylinder as claimed in claim 1, wherein: the fixing mechanism (7) comprises a mounting plate (71), a sliding plate (72), a clamping groove (73) and a fixing plate (74), wherein four groups of expansion bolts (76) are arranged in the mounting plate (71) in a penetrating mode, the sliding plate (72) is arranged at the front end of the mounting plate (71), the outer surface of the rear end of the sliding plate (72) is fixedly connected with the outer surface of the front end of the mounting plate (71), the sliding plate (72) is L-shaped, the clamping groove (73) is arranged on the outer side of the sliding plate (72), the inner surface of the clamping groove (73) is movably connected with the outer surface of the sliding plate (72), the fixing plate (74) is welded at the front end of the clamping groove (73), the outer surface of the front end of the fixing plate (74) is fixedly connected with the outer surface of the rear end of the leakage protection device main body (1), and a fixing pin (75, the fixing pin (75) is movably connected with the clamping groove (73).
5. An earth leakage protection device for an electro-hydraulic servo-rod hydraulic cylinder as claimed in claim 1, wherein: wire (8) are through wiring hole (2) and earth leakage protection device main part (1) fixed connection, the below that the front end of earth leakage protection device main part (1) is close to test button (5) is provided with miniature fixed screw (4), miniature fixed screw (4) and earth leakage protection device main part (1) fixed connection.
6. An earth leakage protection device for an electro-hydraulic servo-rod hydraulic cylinder as claimed in claim 1, wherein: the rear end of the test button (5) is fixedly connected with the front end of the leakage protection device main body (1), and a protection switch (6) is arranged above the front end of the leakage protection device main body (1) close to the test button (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000630.XU CN210629084U (en) | 2019-11-19 | 2019-11-19 | Leakage protection device of electro-hydraulic servo pull rod hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000630.XU CN210629084U (en) | 2019-11-19 | 2019-11-19 | Leakage protection device of electro-hydraulic servo pull rod hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210629084U true CN210629084U (en) | 2020-05-26 |
Family
ID=70763833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922000630.XU Expired - Fee Related CN210629084U (en) | 2019-11-19 | 2019-11-19 | Leakage protection device of electro-hydraulic servo pull rod hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210629084U (en) |
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2019
- 2019-11-19 CN CN201922000630.XU patent/CN210629084U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200526 Termination date: 20201119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |