CN210668216U - Novel second grade safety protection device - Google Patents
Novel second grade safety protection device Download PDFInfo
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- CN210668216U CN210668216U CN201921946635.5U CN201921946635U CN210668216U CN 210668216 U CN210668216 U CN 210668216U CN 201921946635 U CN201921946635 U CN 201921946635U CN 210668216 U CN210668216 U CN 210668216U
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- fixedly connected
- water tank
- temperature controller
- controller shell
- protection device
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Abstract
The utility model discloses a novel two-stage safety protection device, which comprises a water tank, a heater is fixedly connected inside one side of the bottom end of the water tank, a mechanical temperature controller shell is fixedly connected with one side of the center of the water tank, a thermal sensor is fixedly connected between the mechanical temperature controller shell at one side of the water tank and the heater, the other end of the thermal sensor is electrically connected with a digital display type temperature controller, one end of the mechanical temperature controller shell far away from the water tank is fixedly connected with a relay control line, one end of the relay control line far away from the water tank is fixedly connected with an electromagnetic relay, the temperature in the water tank is accurately displayed by arranging the digital display type temperature controller, and the mechanical temperature controller is taken as an overheat protector, so that once the digital display type temperature controller fails, the temperature in the water tank exceeds the set, the main contact of the electromagnetic relay is opened, so that the power supply is disconnected.
Description
Technical Field
The utility model relates to an electrical protection device field especially relates to a novel second grade safety arrangement.
Background
The temperature control of the existing digital display type temperature controller is accurate, simple and easy to use, but fails to work easily, and the mechanical temperature controller is simple in structure, good in stability, but lower in accuracy, and most of the existing protection devices only select one type of temperature controller as overheating protection, so that the overall stability is reduced, and the failure rate is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a novel secondary safety protection device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel two-stage safety protection device comprises a water tank, wherein a heater is fixedly connected inside one side of the bottom end of the water tank, a mechanical temperature controller shell is fixedly connected to one side of the center of the water tank, a heat sensor is fixedly connected between the mechanical temperature controller shell at one side of the water tank and the heater, the other end of the heat sensor is electrically connected with a digital display type temperature controller, a relay control line is fixedly connected to one end, away from the water tank, of the mechanical temperature controller shell, an electromagnetic relay is fixedly connected to one end, away from the water tank, of the relay control line, an electric box is fixedly connected to the bottom end of the electromagnetic relay, a main switch is fixedly connected to the center of the electric box, a plurality of wiring terminals are fixedly connected to the bottom end of the electric box, the wiring, the utility model discloses a temperature control device, including a mechanical temperature controller shell, a heat pipe, a mechanical temperature controller shell, a movable plate, a temperature sensing head, the one end fixedly connected with steam bellows box that the heat pipe was kept away from the heat pipe, the top contact of steam bellows box has the dwang, the inside at mechanical temperature controller shell is rotated to the one end of dwang, the one end bottom fixedly connected with extension spring of rotation junction is kept away from to the dwang, the other end fixed connection of extension spring is at the lateral wall of mechanical temperature controller shell, the dwang is for the fixed electrical contact that is provided with of opposite side of extension spring, the opposite side lateral wall of mechanical temperature controller shell rotates and is connected with.
As a further description of the above technical solution:
guide rods are arranged on two sides of the moving plate in a sliding mode, and sliding grooves are formed in sliding connection positions of the moving plate and the guide rods.
As a further description of the above technical solution:
the heat conduction pipe passes through the lateral wall of mechanical temperature controller shell and is connected with the vapor film box fixed connection, the heat conduction pipe passes the lateral wall of water tank and extends to the inside of water tank, the heat sensor passes the lateral wall of water tank and extends to the inside of water tank.
As a further description of the above technical solution:
the temperature adjusting knob is characterized in that anti-skid lines are arranged on the peripheral side of the temperature adjusting knob, a gap is reserved between the temperature adjusting knob and the mechanical temperature controller shell, a pointer is arranged in the gap, and the pointer is fixedly connected with the temperature adjusting knob.
As a further description of the above technical solution:
a trapezoidal threaded hole is formed in the center of one end of the moving plate and corresponds to the external thread of the threaded rod.
As a further description of the above technical solution:
a cavity is arranged in the steam bellows, and nitrogen is arranged in the cavity.
As a further description of the above technical solution:
the wiring terminals are three wiring terminals, and three wires are led out from the wiring terminals and electrically connected with the heater.
As a further description of the above technical solution:
the electromagnetic relay is electrically connected with the main switch, and a main contact of the electromagnetic relay is connected to a passage of the main switch.
The utility model discloses following beneficial effect has:
1. the utility model discloses a set up the accurate temperature that shows in the water tank of digital display formula temperature controller, mechanical temperature controller is as overheat protector simultaneously for in case digital display formula temperature controller breaks down, the temperature surpasss the scope that mechanical temperature controller set for in the water tank, through the contact circular telegram in the mechanical temperature controller, breaks off electromagnetic relay's main contact, makes the power disconnection.
2. The utility model discloses a set up the distance of the contact of knob and threaded rod adjustment movable plate and dwang contact to this adjusts the temperature that mechanical temperature controller will the mains operated cut-off.
Drawings
Fig. 1 is a front view of a novel secondary safety protection device provided by the present invention;
fig. 2 is a schematic sectional view of a mechanical temperature controller of a novel two-stage safety protection device provided by the present invention;
fig. 3 is a circuit wiring diagram of the novel secondary safety protection device without other protection devices provided by the utility model.
Illustration of the drawings:
1. a water tank; 2. a thermal sensor; 3. a heater; 4. a threaded rod; 5. a mechanical temperature controller shell; 6. a relay control line; 7. a digital display type temperature controller; 8. an electromagnetic relay; 9. a master switch; 10. an electric box; 11. a wiring terminal; 12. a temperature sensing head; 13. a heat conducting pipe; 14. rotating the rod; 15. a vapor capsule; 16. a tension spring; 17. moving the plate; 18. a temperature adjusting knob.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment: a novel two-stage safety protection device comprises a water tank 1, a heater 3 is fixedly connected inside one side of the bottom end of the water tank 1 and used for heating water in the water tank 1, a mechanical temperature controller shell 5 is fixedly connected to one side of the center of the water tank 1, a thermal sensor 2 is fixedly connected between the mechanical temperature controller shell 5 and the heater 3 at one side of the water tank 1 and used for transmitting thermal data to a digital display type temperature controller 7, the other end of the thermal sensor 2 is electrically connected with the digital display type temperature controller 7, a relay control line 6 is fixedly connected to one end of the mechanical temperature controller shell 5 far away from the water tank 1 and used for electrically connecting a contact of the mechanical temperature controller with an electromagnetic relay 8, an electromagnetic relay 8 is fixedly connected to one end of the relay control line 6 far away from the water tank 1 and used for controlling the on-, a main switch 9 is fixedly connected at the center of an electric box 10, a power supply is turned on or off, a plurality of wiring terminals 11 are fixedly connected at the bottom end of the electric box 10, the plurality of wiring terminals 11 are electrically connected with a heater 3, a heat conduction pipe 13 is fixedly connected at one side of a mechanical temperature controller shell 5, heat is preserved and transferred, a temperature sensing head 12 is fixedly connected at the top end of the heat conduction pipe 13 for sensing the current temperature, a steam diaphragm capsule 15 is fixedly connected at one end of the heat conduction pipe 13 far away from the temperature sensing head 12 and filled with gas, a rotating rod 14 is contacted at the top end of the steam diaphragm capsule 15, one end of the rotating rod 14 is rotatably connected inside the mechanical temperature controller shell 5, a tension spring 16 is fixedly connected at the bottom of the end of the rotating rod 14 far away from the rotating connection part and used for resetting the rotating rod, the other side wall of the mechanical temperature controller shell 5 is rotatably connected with a threaded rod 4, one end, far away from the mechanical temperature controller shell 5, of the threaded rod 4 is fixedly connected with a temperature adjusting knob 18, the top end, far away from the temperature adjusting knob 18, of the threaded rod 4 is in threaded transmission connection with a movable plate 17, and one side, close to the tension spring 16, of the top end of the movable plate 17 is fixedly connected with an electrical contact.
Guide rods are arranged on two sides of the moving plate 17 in a sliding mode, and a sliding groove is formed in the sliding connection position of the moving plate 17 and the guide rods to prevent the moving plate 17 from rotating along with the threaded rod 4. The heat conducting pipe 13 penetrates through the side wall of the mechanical temperature controller shell 5 to be fixedly connected with the vapor film box 15, the heat conducting pipe 13 penetrates through the side wall of the water tank 1 to extend to the inside of the water tank 1 for detecting the water temperature, and the heat sensor 2 penetrates through the side wall of the water tank 1 to extend to the inside of the water tank 1. The side of the temperature adjusting knob 18 is provided with anti-skid grains, a gap is reserved between the temperature adjusting knob 18 and the mechanical temperature controller shell 5, a pointer is arranged in the gap, the temperature is conveniently adjusted, and the pointer is fixedly connected with the temperature adjusting knob 18. A trapezoidal threaded hole is formed in the center of one end of the moving plate 17 and used for threaded transmission, and the trapezoidal threaded hole corresponds to the external thread of the threaded rod 4. The inside of the steam bellows 15 is provided with a cavity, and nitrogen and non-toxic gas are arranged in the cavity. The plurality of wiring terminals 11 are three wiring terminals, and three wires are led out from the three wiring terminals to be electrically connected with the heater 3. The electromagnetic relay 8 is electrically connected with the main switch 9, and the main contact of the electromagnetic relay 8 is connected to the path of the main switch 9.
The working principle is as follows: when the digital display type temperature controller 7 fails, the heater 3 continues to heat under the condition that the digital display type temperature controller 7 fails, when the temperature exceeds a certain value, the temperature sensing head 12 and the heat conduction pipe 13 transfer heat into the vapor film box 15, gas inside the vapor film box 15 in the mechanical temperature controller expands by heating, the vapor film box 15 is pushed open, the pushed vapor film box 15 pushes the contact of the rotating rod 14 to be contacted with the contact of the moving plate 17, namely the electric shock switch SB2 of the mechanical temperature controller is closed, the SB2 is connected with the coil KM1 in parallel, when the SB2 is closed, as the resistance of the coil KM1 is larger than that of SB2, current directly flows through the SB2, the coil KM1 of the electromagnetic relay 8 is de-energized, the main contact KM1 of the electromagnetic relay 8 is disconnected, at the moment, the main circuit is de.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (8)
1. The utility model provides a novel second grade safety arrangement, includes water tank (1), its characterized in that: the water tank heat control device is characterized in that a heater (3) is fixedly connected to the inside of one side of the bottom end of the water tank (1), a mechanical temperature controller shell (5) is fixedly connected to one side of the center of the water tank (1), a thermal sensor (2) is fixedly connected between the mechanical temperature controller shell (5) on one side of the water tank (1) and the heater (3), a digital display type temperature controller (7) is electrically connected to the other end of the thermal sensor (2), a relay control line (6) is fixedly connected to one end, far away from the water tank (1), of the mechanical temperature controller shell (5), an electromagnetic relay (8) is fixedly connected to one end, far away from the water tank (1), of the relay control line (6), an electric box (10) is fixedly connected to the bottom end of the electromagnetic relay (8), a main switch (9) is fixedly connected to the center of the electric box, a plurality of binding post (11) electric connection has heater (3), one side fixedly connected with heat pipe (13) of mechanical temperature controller shell (5), the top fixedly connected with temperature sensing head (12) of heat pipe (13), the one end fixedly connected with vapor capsule (15) of temperature sensing head (12) are kept away from in heat pipe (13), the top contact of vapor capsule (15) has dwang (14), the one end of dwang (14) is rotated and is connected in the inside of mechanical temperature controller shell (5), the one end bottom fixedly connected with extension spring (16) of rotation junction is kept away from in dwang (14), the other end fixed connection of extension spring (16) is at the lateral wall of mechanical temperature controller shell (5), dwang (14) is provided with the electric contact for the opposite side fixed of extension spring (16), the opposite side lateral wall of mechanical temperature controller shell (5) rotates and is connected with threaded rod (4), one end fixedly connected with temperature adjusting knob (18) of mechanical temperature controller shell (5) is kept away from threaded rod (4), the top thread transmission that temperature adjusting knob (18) was kept away from in threaded rod (4) is connected with movable plate (17), one side fixedly connected with electrical contact that the top of movable plate (17) is close to extension spring (16).
2. The novel secondary safety protection device of claim 1, wherein: guide rods are arranged on two sides of the moving plate (17) in a sliding mode, and sliding grooves are formed in sliding connection positions of the moving plate (17) and the guide rods.
3. The novel secondary safety protection device of claim 1, wherein: the heat conduction pipe (13) passes through the side wall of the mechanical temperature controller shell (5) and is fixedly connected with the vapor film box (15), the heat conduction pipe (13) passes through the side wall of the water tank (1) and extends to the inside of the water tank (1), and the heat sensor (2) passes through the side wall of the water tank (1) and extends to the inside of the water tank (1).
4. The novel secondary safety protection device of claim 1, wherein: the temperature adjusting knob is characterized in that anti-skid lines are arranged on the peripheral sides of the temperature adjusting knob (18), a gap is reserved between the temperature adjusting knob (18) and the mechanical temperature controller shell (5), a pointer is arranged in the gap, and the pointer is fixedly connected with the temperature adjusting knob (18).
5. The novel secondary safety protection device of claim 1, wherein: and a trapezoidal threaded hole is formed in the center of one end of the moving plate (17) and corresponds to the external thread of the threaded rod (4).
6. The novel secondary safety protection device of claim 1, wherein: a cavity is arranged in the steam bellows (15), and nitrogen is arranged in the cavity.
7. The novel secondary safety protection device of claim 1, wherein: the wiring terminals (11) are three wiring terminals, and three wiring terminals lead out three wires to be electrically connected with the heater (3).
8. The novel secondary safety protection device of claim 1, wherein: the electromagnetic relay (8) is electrically connected with the main switch (9), and a main contact of the electromagnetic relay (8) is connected to a passage of the main switch (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921946635.5U CN210668216U (en) | 2019-11-12 | 2019-11-12 | Novel second grade safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921946635.5U CN210668216U (en) | 2019-11-12 | 2019-11-12 | Novel second grade safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210668216U true CN210668216U (en) | 2020-06-02 |
Family
ID=70816699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921946635.5U Active CN210668216U (en) | 2019-11-12 | 2019-11-12 | Novel second grade safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210668216U (en) |
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2019
- 2019-11-12 CN CN201921946635.5U patent/CN210668216U/en active Active
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