CN210865995U - Explosion-proof scram switch limit protection mechanism - Google Patents
Explosion-proof scram switch limit protection mechanism Download PDFInfo
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- CN210865995U CN210865995U CN201922156151.7U CN201922156151U CN210865995U CN 210865995 U CN210865995 U CN 210865995U CN 201922156151 U CN201922156151 U CN 201922156151U CN 210865995 U CN210865995 U CN 210865995U
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Abstract
The utility model discloses an explosion-proof scram switch limit protection mechanism, this limit protection mechanism comprises explosion-proof structure part, electrical switch and limit protection structure. The explosion-proof structural parts comprise an explosion-proof operating rod, an O-shaped sealing ring, an emergency stop button seat and an explosion-proof shell; the electric switch comprises an emergency stop button and an emergency stop button cap; the limiting protection structure comprises a locking nut, a fixing seat, a button fixing threaded sleeve, a button fixing locking nut, a fixing screw and a limiting block. The explosion-proof structure part meets the installation and action requirements of the explosion-proof operating rod through two cylindrical explosion-proof surfaces and one planar explosion-proof surface. The electric switch adopts a standard emergency stop button, the equipment is started and stopped through the explosion-proof operating rod, and the limit protection structure carries out limit protection on the emergency stop button through the limit block.
Description
Technical Field
The utility model belongs to the explosion-proof robot field, an explosion-proof scram switch limit protection mechanism for explosion-proof robot specifically says so.
Background
Explosion-proof shell of explosion-proof robot, for example, explosion-proof polling robot and explosion-proof fire-fighting robot, are usually equipped with explosion-proof emergency stop switch, and their functions are as main power switch of explosion-proof robot and emergency stop in emergency state. When the explosion-proof robot executes a work task, the explosion-proof emergency stop switch is pulled out to a starting state, the robot body is electrified for standby, and then the robot is controlled by a remote operation system in a remote control mode and executes actions such as starting and stopping, turning, ascending, descending, special operation and the like according to instructions. When emergency needs to stop the robot immediately or the robot body needs to be powered off after the robot finishes working, the explosion-proof emergency stop switch button is pressed down, and the robot band-type brake brakes and turns off the power supply. Because of the requirement of an explosion-proof structure, an operation button of the explosion-proof emergency stop switch is a copper rod piece, and is sealed in a waterproof way through an O-shaped sealing ring, the structure enables the operation hand feeling to be sluggish, whether the internal switch is in place can not be accurately judged when the button is pressed or pulled out, and an internal emergency stop switch cap can be pulled off and damaged in extreme cases.
Disclosure of Invention
In order to solve the technical problem, the utility model provides an explosion-proof emergency stop switch limit protection mechanism, this limit protection mechanism can be fine prevent explosion-proof emergency stop switch maloperation and damage the problem of device, simple structure, convenient operation, practicality are strong.
The utility model adopts the technical proposal that: the utility model provides an explosion-proof scram switch limit protection mechanism, this limit protection mechanism comprises explosion-proof structure part, electrical switch and limit protection structure. The explosion-proof structure part is designed according to the national standard of electrical equipment for the explosive environment of GB3836, and the installation and action requirements of the explosion-proof operating rod are met through two cylindrical explosion-proof surfaces and one planar explosion-proof surface. The electrical switch uses a standard emergency stop button which can be pressed down directly to stop the device immediately. If the equipment is started again, the equipment only needs to be pulled outwards. The limiting protection structure is used for limiting protection by the limiting block follow-up emergency stop button, and the button can be accurately pressed or pulled out to be in place and limited.
The explosion-proof structural part comprises an explosion-proof operating rod 1, an O-shaped sealing ring 2, an emergency stop button seat 3 and an explosion-proof shell 4, wherein the emergency stop button seat 3 is installed on the explosion-proof shell 4 through bolts, and a cylindrical explosion-proof surface I is formed between the emergency stop button seat 3 and the explosion-proof shell 4. The explosion-proof operating rod 1 is arranged in a button rod hole of the emergency stop button seat 3, a cylindrical explosion-proof surface II is formed between the explosion-proof operating rod and the emergency stop button seat 3, and the O-shaped sealing ring 2 is arranged on the explosion-proof operating rod 1 to realize the waterproof sealing effect.
The electric switch consists of an emergency stop button 7 and an emergency stop button cap 8, and the emergency stop button cap 8 is reset on the emergency stop button 7 through a spring to perform reciprocating action.
The limiting protection structure is composed of a locking nut 5, a fixing seat 6, a button fixing threaded sleeve 9, a button fixing locking nut 10, a fixing screw 11 and a limiting block 12, the fixing seat 6 is a main structure frame, and other parts are positioned and installed around the fixing seat. The fixed seat 6 is provided with 4 windows for the installation and adjustment of internal parts and has a limit action boundary. The button fixing threaded sleeve 9 and the button fixing lock nut 10 are threaded nested assemblies, the explosion-proof operating rod 1, the emergency stop button 7 and the emergency stop button cap 8 are connected into a whole, and the emergency stop button 7 is fixed on the button fixing lock nut 10 through two lock nuts 5. When the explosion-proof operating rod 1 is pressed, the button fixing lock nut 10 is driven, the linked button fixing screw sleeve 9, the limiting block 12 and the emergency stop button cap 8 are driven to move together until the limiting block 12 touches the side wall of the fixing seat 6, and the contact of the emergency stop button 7 is closed. On the contrary, when the explosion-proof operating rod 1 is pulled out, the related parts act in the reverse direction until the limit block 12 touches the side wall on the other side of the fixed seat 6, and the contact of the emergency stop button 7 is disconnected.
The utility model has the advantages that: the limiting protection mechanism has the characteristics of simple structure, safety and explosion prevention, so that the operation of the emergency stop switch button is more convenient and reliable, the condition that the emergency stop switch is not operated in place or the emergency stop switch is damaged is prevented, and the practicability is high.
Drawings
FIG. 1 is a cross-sectional view of an explosion-proof scram switch limit protection mechanism;
FIG. 2 is a schematic perspective view of an explosion-proof emergency stop switch limit protection mechanism;
FIG. 3 is a schematic view of the button pressing state of the explosion-proof emergency stop switch limit protection mechanism;
fig. 4 is a schematic view of the pull-out state of the button of the explosion-proof emergency stop switch limit protection mechanism.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 and 2, the limit protection mechanism of the explosion-proof emergency stop switch comprises an explosion-proof structural part, an electrical switch and a limit protection structure. The explosion-proof structural parts comprise an explosion-proof operating rod 1, an O-shaped sealing ring 2, an emergency stop button seat 3 and an explosion-proof shell 4; the electric switch consists of an emergency stop button 7 and an emergency stop button cap 8; the limiting protection structure is composed of a locking nut 5, a fixing seat 6, a button fixing threaded sleeve 9, a button fixing locking nut 10, a fixing screw 11 and a limiting block 12.
In the explosion-proof structural part, the emergency stop button seat 3 is arranged on the explosion-proof shell 4 through a bolt, and a cylindrical explosion-proof surface I is formed between the emergency stop button seat and the explosion-proof shell. A sealing ring groove is processed on the end face of the emergency stop button seat 3, and an O-shaped sealing ring 2 is installed for waterproof treatment during assembly. An explosion-proof operating rod 1 and a fixed seat 6 are arranged on the emergency stop button seat 3. The explosion-proof operating rod 1 is arranged in a button rod hole of the emergency stop button seat 3, a cylindrical explosion-proof surface II is formed between the explosion-proof operating rod and the emergency stop button seat, and meanwhile, the O-shaped sealing ring 2 is arranged on the explosion-proof operating rod 1 to achieve the waterproof sealing effect. The fixing seat 6 is arranged on the end surface of the inner side of the emergency stop button seat 3 and is fixed by 4 screws. The emergency stop button 7 is fixed in the mounting hole of the fixed seat 6.
As shown in fig. 1 and 2, the button fixing threaded sleeve 9 and the button fixing lock nut 10 are a threaded nested assembly, wherein a limit block 12 is installed on the outer circumference of the button fixing threaded sleeve 9, the button fixing threaded sleeve 9 and the limit block 12 are fastened together by a fixing screw 11, and the emergency stop button cap 8 is installed in an inner hole of the button fixing threaded sleeve 9; wherein the explosion-proof operating rod 1 is arranged in the inner hole of the button fixing lock nut 10, the button fixing lock nut 10 and the explosion-proof operating rod 1 are fixed together by two locking nuts 5, and the two locking nuts are screwed into the threaded inner hole of the button fixing threaded sleeve 9 and tightly press the emergency stop button cap 8. When the explosion-proof operating rod 1 is pressed or pulled out, the emergency stop button cap 8 acts to trigger or disconnect the internal contact of the emergency stop button 7, and the limiting block 12 follows up.
As shown in fig. 3 and 4, the limit stroke L is a preset limit protection distance of the limit block 12, when the explosion-proof operating lever 1 is pressed, the limit block 12 touches the lower side wall of the fixing seat 6, the internal contact of the emergency stop button 7 is switched on at this time, and the limit block 12 cannot be pushed downwards continuously to stop in place. When the explosion-proof operating rod 1 is pulled out, the limiting block 12 touches the upper side wall of the fixed seat 6, at the moment, the internal contact of the emergency stop button 7 is disconnected, and the limiting block 12 cannot be pulled out upwards continuously to be in place and stopped, so that the limiting protection effect is achieved.
The present invention is not limited to the embodiments described in the detailed description, and any person skilled in the art can obtain other embodiments according to the scheme of the present invention, which also belongs to the scope of the technical innovation and protection of the present invention.
Claims (1)
1. The utility model provides an explosion-proof scram switch limit protection mechanism which characterized in that: the limiting protection mechanism consists of an explosion-proof structure part, an electrical switch and a limiting protection structure; the explosion-proof structural part comprises an explosion-proof operating rod (1), an O-shaped sealing ring (2), an emergency stop button seat (3) and an explosion-proof shell (4); the electric switch consists of an emergency stop button (7) and an emergency stop button cap (8); the limiting protection structure consists of a locking nut (5), a fixed seat (6), a button fixing threaded sleeve (9), a button fixing locking nut (10), a fixing screw (11) and a limiting block (12); the emergency stop button seat (3) is arranged on the explosion-proof shell (4), and a cylindrical explosion-proof surface I is formed between the emergency stop button seat and the explosion-proof shell; a sealing ring groove is arranged on the end surface of the emergency stop button seat (3) and is provided with an O-shaped sealing ring (2); the explosion-proof operating rod (1) is arranged in a button rod hole of the emergency stop button seat (3), a cylindrical explosion-proof surface II is formed between the explosion-proof operating rod and the button rod hole, and an O-shaped sealing ring (2) is also arranged on the explosion-proof operating rod (1); the fixed seat (6) is arranged on the end surface of the inner side of the emergency stop button seat (3) and is fixed by a screw; the emergency stop button (7) is fixed in the mounting hole of the fixed seat (6); a limiting block (12) is arranged on the outer circumference of the button fixing threaded sleeve (9), and an emergency stop button cap (8) is arranged in an inner hole of the button fixing threaded sleeve (9); an explosion-proof operating rod (1) is installed in an inner hole of a button fixing lock nut (10), the button fixing lock nut (10) and the explosion-proof operating rod (1) are fixed together by two locking nuts (5), and the button fixing lock nut is screwed into a threaded inner hole of a button fixing threaded sleeve (9) and tightly presses an emergency stop button cap (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156151.7U CN210865995U (en) | 2019-12-05 | 2019-12-05 | Explosion-proof scram switch limit protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156151.7U CN210865995U (en) | 2019-12-05 | 2019-12-05 | Explosion-proof scram switch limit protection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210865995U true CN210865995U (en) | 2020-06-26 |
Family
ID=71307491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922156151.7U Active CN210865995U (en) | 2019-12-05 | 2019-12-05 | Explosion-proof scram switch limit protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210865995U (en) |
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2019
- 2019-12-05 CN CN201922156151.7U patent/CN210865995U/en active Active
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