Electromagnetic driving device with signal feedback

Abstract

The utility model discloses an electromagnetic driving device with signal feedback, which comprises a sleeve, a coil, an armature, stop iron and a bayonet assembly, the coil is sleeved outside the sleeve, the armature is slidably arranged in the sleeve, the bayonet assembly is connected below the armature, the stop iron is arranged at the bottom of the sleeve, and a puncture channel for the bayonet assembly to pass through is arranged in the stop iron. A first mounting groove is formed in the upper end of the stop iron, an action signal feedback mechanism is arranged in the first mounting groove, the action signal feedback mechanism comprises an action feedback switch, a first contact piece and a first spring connected between the action feedback switch and the first contact piece, and the first contact piece is used for making contact with the bottom face of the armature. The electromagnetic driving device with signal feedback has the advantages of high reliability and good stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire extinguishing technology field especially a kind of electromagnetic drive device with signal feedback. BACKGROUND

[0002] Fire-fighting equipment is in operation, electromagnetic drive device act, fire bottle container valve is opened, extinguishing agent enters extinguishing agent delivery pipeline, and finally is atomized by nozzle, is sprayed into protective zone. Since electromagnetic drive device is used to start fire bottle container valve, its function reliability is particularly important, whether installation is in place, whether action after power on can influence the reliable performance of electromagnetic drive device.

[0003] The Chinese patent document with publication number CN217563478U discloses a direct-current fire prevention action signal feedback electromagnet, a bayonet lug seat is installed with a compression spring sheet on one side through a screw, the armature pushes the bayonet lug seat to move downward through a top rod, the bayonet head pierces the fire bottle valve diaphragm, and the extinguishing action is completed. At the same time, when the bayonet lug seat moves downward, the compression spring sheet moves downward together, the compression spring sheet starts a microswitch, and a feedback signal is output, indicating that the action of the electromagnet is reliable. In the technical solution, the microswitch is started by the compression spring sheet, but the compression spring sheet has a long force arm, and is prone to deformation during long-term use, resulting in feedback failure and low reliability. Moreover, the compression spring sheet is only connected to one side of the bayonet lug seat, and is prone to loosening and position deviation during long-term use, resulting in reduced signal feedback accuracy and poor stability. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of overcoming the deficiencies of the prior art and provides an electromagnetic drive device with signal feedback, which has high reliability and good stability.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An electromagnetic drive device with signal feedback includes a sleeve, a coil, an armature, a stopper and a bayonet assembly. The coil is sleeved outside the sleeve, the armature is slidably arranged in the sleeve, the bayonet assembly is connected below the armature, the stopper is arranged at the bottom of the sleeve, the stopper is provided with a puncture passage for the bayonet assembly to pass through, a first installation groove is formed in the upper end of the stopper, an action signal feedback mechanism is arranged in the first installation groove, the action signal feedback mechanism includes an action feedback switch, a first contact and a first spring connected between the action feedback switch and the first contact, and the first contact is used to contact the bottom surface of the armature.

[0007] As a further improvement of the above technical solutions:

[0008] A second installation groove is formed in the lower end of the stopper, and an installation signal feedback mechanism is arranged in the second installation groove.

[0009] The installation signal feedback mechanism comprises an installation feedback switch, a second contact piece and a second spring connected between the installation feedback switch and the second contact piece, and the second contact piece is used for contacting the fire-fighting cylinder container valve.

[0010] The bottom of the second contact piece is provided with a spherical contact part.

[0011] The top of the sleeve is provided with an upper cover, a push rod is arranged in the upper cover, one end of the push rod is connected with the armature, and the other end of the push rod is provided with a manual button.

[0012] The push rod is inserted with a first safety pin.

[0013] The bayonet assembly comprises a bayonet seat and a bayonet mounted on the bayonet seat, and the bayonet seat is connected below the armature.

[0014] The lower end of the puncture channel is provided with a limiting part for limiting the bayonet seat, the bayonet outer sleeve is provided with a third spring, and the third spring abuts between the bayonet seat and the limiting part.

[0015] The bayonet seat is inserted with a second safety pin.

[0016] The power signal assembly comprises a power line connected with the coil, an action signal line connected with the action feedback switch and an installation signal line connected with the installation feedback switch.

[0017] The stop iron is provided with a wire passing channel below the coil, and the wire passing channel is in communication with the first installation groove, the second installation groove and the coil respectively.

[0018] Compared with the prior art, the advantages of the utility model lie in that:

[0019] 1. The electromagnetic driving device with signal feedback comprises an action signal feedback mechanism, which can feed back whether the action of the bayonet assembly is in place, has simple structure and high reliability; the first spring can reset the first contact piece and buffer the force received by the first contact piece and then conduct the force to the action feedback switch, has high reliability, and the first spring is located in the first installation groove and connected between the action feedback switch and the first contact piece, so that the first spring is uniformly stressed and is not easy to be positionally deviated, signal feedback accuracy is high, and stability is good.

[0020] 2. The electromagnetic drive device with signal feedback of the utility model, through setting up installation signal feedback mechanism, in use, the bottom surface of the stop iron is installed in the top surface of the fire gas bottle container valve, installation signal feedback mechanism detects whether the stop iron is installed in place and feedback, prevents from installing not in place, bayonet assembly is stuck or because the stroke is not enough and cannot stab the diaphragm of fire gas bottle container valve, causes the fire gas bottle to be unable to start normally.

[0021] 3. The electromagnetic drive device with signal feedback of the utility model, through setting up spherical surface contact part, make second contact piece and fire gas bottle container valve point contact, reduce abrasion, improve device service life.

[0022] 4. The electromagnetic drive device with signal feedback of the utility model, when electromagnetic drive is invalid, can manual press manual button manually, through push rod drives armature to move down to stab the diaphragm of fire gas bottle container valve, provides spare starting mode, higher reliability.

[0023] 5. The electromagnetic drive device with signal feedback of the utility model, power cord passes through wire passage and is connected with coil, action signal line passes through wire passage and first installation slot and is connected with action feedback switch, installation signal line passes through wire passage and second installation slot and is connected with installation feedback switch, layout is reasonable, compact. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is structure schematic diagram of the electromagnetic drive device with signal feedback of the utility model.

[0025] Figure 2 It is Figure 1 Enlarged view of A in the middle.

[0026] Legend: 1, sleeve;11, upper cover;12, push rod;13, manual button;2, coil;3, armature;4, stop iron;41, first installation slot;42, second installation slot;43, wire passage;44, puncture passage;45, limiting portion;5, bayonet assembly;51, bayonet seat;52, bayonet;53, third spring;6, action signal feedback mechanism;61, action feedback switch;62, first contact piece;63, first spring;7, installation signal feedback mechanism;71, installation feedback switch;72, second contact piece;721, spherical surface contact part;73, second spring;81, first safety pin;82, second safety pin;9, power signal assembly;91, power cord;92, action signal line;93, installation signal line. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail in combination with the drawings and specific embodiments of the specification.

[0028] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0029] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0030] In the utility model, unless otherwise specifically defined and limited, the terms "assembly", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] As shown in Figure 1 and Figure 2 The electromagnetic drive device with signal feedback of the embodiment comprises a sleeve 1, a coil 2, an armature 3, a stop iron 4 and a bayonet assembly 5, the coil 2 is sleeved outside the sleeve 1, the armature 3 is slidably arranged in the sleeve 1, the bayonet assembly 5 is connected below the armature 3, the stop iron 4 is arranged at the bottom of the sleeve 1, the stop iron 4 is internally provided with a puncture passage 44 for the bayonet assembly 5 to pass through, a first mounting groove 41 is formed in the upper end of the stop iron 4, and an action signal feedback mechanism 6 is arranged in the first mounting groove 41, the action signal feedback mechanism 6 comprises an action feedback switch 61, a first contact piece 62 and a first spring 63 connected between the action feedback switch 61 and the first contact piece 62, and the first contact piece 62 is used for contacting the bottom surface of the armature 3.

[0032] In this embodiment, the electromagnetic drive device with signal feedback operates as follows: When coil 2 is energized, the magnetic field generated by coil 2 exerts a downward thrust on armature 3, causing armature 3 to move bayonet assembly 5 downwards. Bayonet assembly 5 punctures the diaphragm of the fire cylinder container valve, thus activating the fire cylinder. When bayonet assembly 5 is in position, i.e., when the lower end face of armature 3 contacts the upper end face of stop 4, the extension stroke of bayonet assembly 5 is sufficient to puncture the diaphragm of the fire cylinder container valve. During the downward movement of armature 3, it contacts and presses down on the first contact member 62, thereby activating the action feedback switch 61. The action feedback switch 61 outputs a feedback signal, indicating that the bayonet assembly 5 operates reliably. When bayonet assembly 5 is not in position, the first contact member 62 cannot receive sufficient force, the action feedback switch 61 cannot be activated, and the action feedback switch 61 cannot output a feedback signal, indicating that the bayonet assembly 5 operates unreliably. The electromagnetic drive device with signal feedback in this embodiment can provide feedback on whether the bayonet assembly 5 has reached the correct position by setting the action signal feedback mechanism 6. It has a simple structure and high reliability. By setting the first spring 63, the first spring 63 can reset the first contact 62 on the one hand, and buffer the force on the first contact 62 before transmitting it to the action feedback switch 61 on the other hand. It has high reliability. Furthermore, since the first spring 63 is located in the first mounting groove 41 and its two ends are connected between the action feedback switch 61 and the first contact 62, the force on the first spring 63 is uniform and it is not easy for its position to shift. The signal feedback accuracy is high and the stability is good.

[0033] Furthermore, in this embodiment, a second mounting groove 42 is provided at the lower end of the stop 4, and a mounting signal feedback mechanism 7 is provided in the second mounting groove 42. In use, the bottom surface of the stop 4 is installed on the top surface of the fire cylinder container valve. The mounting signal feedback mechanism 7 detects whether the stop 4 is installed in place and provides feedback to prevent the bayonet assembly 5 from being stuck due to improper installation or from failing to pierce the diaphragm of the fire cylinder container valve due to insufficient stroke, which would prevent the fire cylinder from starting normally.

[0034] Furthermore, in this embodiment, the installation signal feedback mechanism 7 includes an installation feedback switch 71, a second contact 72, and a second spring 73 connected between the installation feedback switch 71 and the second contact 72. The second contact 72 is used to contact the fire cylinder container valve. When the bottom surface of the stop 4 is installed in place with the top surface of the fire cylinder container valve, the top surface of the fire cylinder container valve abuts against the second contact 72 and presses against the second contact 72, thereby activating the installation feedback switch 71. The installation feedback switch 71 outputs a feedback signal indicating that the installation is in place. When the bottom surface of the stop 4 is not installed in place with the top surface of the fire cylinder container valve, the second contact 72 cannot receive sufficient force, the installation feedback switch 71 cannot be activated, and the installation feedback switch 71 cannot output a feedback signal, indicating that the installation is not in place.

[0035] Furthermore, in this embodiment, the bottom of the second contact member 72 is provided with a spherical contact portion 721. By providing the spherical contact portion 721, the second contact member 72 makes point contact with the valve of the fire-fighting gas cylinder container, reducing wear and improving the service life of the device.

[0036] Furthermore, in this embodiment, the top of the sleeve 1 is provided with a top cover 11, and a push rod 12 is inserted through the top cover 11. One end of the push rod 12 is connected to the armature 3, and the other end is provided with a manual button 13. When the electromagnetic drive fails, the manual button 13 can be manually pressed, which will cause the armature 3 to move down through the push rod 12 to puncture the diaphragm of the fire cylinder container valve, providing a backup starting method with higher reliability.

[0037] Furthermore, in this embodiment, a first safety pin 81 is inserted into the push rod 12. The first safety pin 81 can prevent the manual button 13 from being accidentally operated, causing the push rod 12 to move down and start the fire cylinder, thus ensuring good safety.

[0038] Furthermore, in this embodiment, the bayonet assembly 5 includes a bayonet seat 51 and a bayonet 52 mounted on the bayonet seat 51, with the bayonet seat 51 connected to the lower part of the armature 3;

[0039] The lower end of the piercing channel 44 is provided with a limiting part 45 for limiting the bayonet lug 51. The bayonet 52 is covered with a third spring 53, which abuts against the bayonet lug 51 and the limiting part 45. By setting the limiting part 45, only the bayonet 52 can extend out of the piercing channel 44, while the bayonet lug 51 is blocked by the limiting part 45, preventing the bayonet lug 51 from getting stuck when it retracts after extending out of the piercing channel 44. The third spring 53 can reset the bayonet assembly 5 and buffer the downward movement of the bayonet lug 51. The structure is simple and reliable.

[0040] Furthermore, in this embodiment, a second safety pin 82 is inserted into the bayonet holder 51. The second safety pin 82 can prevent accidental operation by manual or electromagnetic drive, which could cause the bayonet 52 to move downward and activate the fire-fighting gas cylinder, thus ensuring good safety.

[0041] Furthermore, this embodiment also includes a power signal component 9, which includes a power line 91 connected to the coil 2, an action signal line 92 connected to the action feedback switch 61, and an installation signal line 93 connected to the installation feedback switch 71. The power signal component 9 can supply power to the coil 2 and transmit feedback signals to the action feedback switch 61 and the installation feedback switch 71, and has a simple and reliable structure.

[0042] Furthermore, in this embodiment, the stop 4 is provided with a wire passage 43 below the coil 2. The wire passage 43 is connected to the first mounting slot 41, the second mounting slot 42, and the coil 2. The power line 91 passes through the wire passage 43 and is connected to the coil 2. The action signal line 92 passes through the wire passage 43 and the first mounting slot 41 and is connected to the action feedback switch 61. The installation signal line 93 passes through the wire passage 43 and the second mounting slot 42 and is connected to the installation feedback switch 71. The layout is reasonable and compact.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An electromagnetic drive device with signal feedback, characterized in that: The device includes a sleeve (1), a coil (2), an armature (3), a stop (4), and a bayonet assembly (5). The coil (2) is sleeved outside the sleeve (1), the armature (3) is slidably disposed inside the sleeve (1), the bayonet assembly (5) is connected below the armature (3), the stop (4) is disposed at the bottom of the sleeve (1), and the stop (4) has a piercing channel (44) for the bayonet assembly (5) to pass through. The upper end of the stop (4) has a first mounting groove (41), and the first mounting groove (41) has an action signal feedback mechanism (6). The action signal feedback mechanism (6) includes an action feedback switch (61), a first contact (62), and a first spring (63) connected between the action feedback switch (61) and the first contact (62). The first contact (62) is used to contact the bottom surface of the armature (3).

2. The electromagnetic drive device with signal feedback according to claim 1, characterized in that: The lower end of the stop (4) is provided with a second mounting groove (42), and the second mounting groove (42) is provided with a mounting signal feedback mechanism (7).

3. The electromagnetic drive device with signal feedback according to claim 2, characterized in that: The installation signal feedback mechanism (7) includes an installation feedback switch (71), a second contact (72), and a second spring (73) connected between the installation feedback switch (71) and the second contact (72). The second contact (72) is used to contact the valve of the fire cylinder container.

4. The electromagnetic drive device with signal feedback according to claim 3, characterized in that: The bottom of the second contact member (72) is provided with a spherical contact portion (721).

5. The electromagnetic drive device with signal feedback according to claim 1, characterized in that: The top of the sleeve (1) is provided with a cover (11), and a push rod (12) is provided in the cover (11). One end of the push rod (12) is connected to the armature (3), and the other end is provided with a manual button (13).

6. The electromagnetic drive device with signal feedback according to claim 5, characterized in that: A first safety pin (81) is inserted into the push rod (12).

7. The electromagnetic drive device with signal feedback according to claim 1, characterized in that: The bayonet assembly (5) includes a bayonet mount (51) and a bayonet (52) mounted on the bayonet mount (51), the bayonet mount (51) being connected below the armature (3); The lower end of the puncture channel (44) is provided with a limiting part (45) for limiting the bayonet seat (51), and the bayonet (52) is covered with a third spring (53), which abuts against the bayonet seat (51) and the limiting part (45).

8. The electromagnetic drive device with signal feedback according to claim 7, characterized in that: A second safety pin (82) is inserted into the bayonet lug (51).

9. The electromagnetic drive device with signal feedback according to any one of claims 2 to 4, characterized in that: It also includes a power signal component (9), which includes a power line (91) connected to the coil (2), an action signal line (92) connected to the action feedback switch (61), and an installation signal line (93) connected to the installation feedback switch (71).

10. The electromagnetic drive device with signal feedback according to claim 9, characterized in that: The stop (4) has a wire passage (43) below the coil (2), and the wire passage (43) is connected to the first mounting groove (41), the second mounting groove (42) and the coil (2) respectively.

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