Portable tool for detecting magnetic force intensity

Abstract

The utility model belongs to the technical field of magnetic force detection equipment, and discloses a portable tool for detecting magnetic force intensity, one end of a battery is electrically connected with a sleeve shell through a first lead, the other end of the battery is electrically connected with a valve core through a second lead, and a switch and an LED lamp group are connected in series on the first lead or the second lead; the valve element and the sleeve shell are coaxially arranged, and the valve element is connected to one end of the sleeve shell in a sliding mode. The electromagnetic coil is sleeved outside the casing pipe shell; one end of the casing pipe shell abuts against the valve element through an elastic connecting piece. Whether the electromagnetic coil is good or not and whether the magnetic force can drive the electromagnetic valve or not can be determined, and then the magnetic force of the electromagnetic coil is judged. Wherein different elastic connecting pieces are replaced, the electromagnetic coils with different magnetic forces can be detected through the elastic force, and the electromagnetic coil detection device can be suitable for detection of various electromagnetic coils with different models and sizes by replacing the casing pipe shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic detection equipment, and in particular relates to a portable tool for detecting magnetic strength. Background Art

[0002] Currently, the solenoid valve coil is basically tested by using the resistance block of a multimeter to measure the internal coil resistance. The strength of the magnetic force of the solenoid valve coil cannot be detected, and it is impossible to determine whether the magnetic force can drive the solenoid valve to work normally. Utility Model Content

[0003] The purpose of the utility model is to provide a portable tool for detecting magnetic strength, so as to solve the above problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A portable tool for detecting magnetic strength comprises a sleeve housing, a valve core, an electromagnetic coil, a battery, a switch and an LED light group, wherein one end of the battery is electrically connected to the sleeve housing via a first wire, and the other end of the battery is electrically connected to the valve core via a second wire, and the switch and the LED light group are connected in series to the first wire or the second wire; the valve core is coaxially arranged with the sleeve housing and is slidably connected to one end of the sleeve housing; the electromagnetic coil is sleeved on the outside of the sleeve housing and is used to control the valve core to slide toward the other end of the sleeve housing and make electrical contact with the sleeve housing through the magnetic flux lines generated by the electromagnetic coil when the electromagnetic coil is energized; one end of the sleeve housing is in contact with the valve core via an elastic connector and is used to drive the valve core to slide toward one end of the sleeve housing via the elastic connector when the electromagnetic coil is de-energized, thereby de-energizing and isolating the valve core from the sleeve housing.

[0006] As a preferred technical solution in the present invention, the sleeve housing includes an insulating housing located at one end thereof and a conductive housing located at the other end thereof, and the insulating housing is fixedly connected to the conductive housing; the valve core is made of conductive material; when the electromagnetic coil is powered off, one end of the valve core is inserted into the insulating housing; when the electromagnetic coil is powered on, the magnetic flux lines generated by the electromagnetic coil control the valve core to slide toward the other end of the sleeve housing and make the valve core electrically contact with the conductive housing.

[0007] As a preferred technical solution in the present invention, the elastic connecting member is a spring, and the outer wall of the other end of the valve core is connected to a valve core limiting ring located outside the sleeve shell, and the two ends of the spring are respectively abutted against the valve core limiting ring and one end of the sleeve shell.

[0008] As a preferred technical solution in the present invention, the portable tool further comprises an annular mounting plate, which abuts against the outer wall of one end of the sleeve housing, and one side of the annular mounting plate contacts one end surface of the electromagnetic coil.

[0009] As a preferred technical solution in the present invention, the annular mounting plate is detachably connected to one end of the electromagnetic coil via bolts.

[0010] As a preferred technical solution in the present invention, the portable tool also includes an insulating mounting seat made of ethylene-vinyl acetate copolymer material injected with glue, a mounting groove is opened at one end of the insulating mounting seat, the valve core and the elastic connecting member are arranged in the mounting groove, the annular mounting plate is abutted against one end of the insulating mounting seat, and a shell limiting ring is fixed on the outer wall of one end of the sleeve shell, and the shell limiting ring is clamped between the annular mounting plate and the insulating mounting seat.

[0011] As a preferred technical solution in the present invention, the battery, switch and LED light group are all wrapped in an insulating mounting base. The switch is a push-button switch and the button of the switch is exposed outside the insulating mounting base. The insulating mounting base is also provided with an observation hole for convenient observation of the LED light group.

[0012] As a preferred technical solution in the present invention, the LED light group is a red LED light group.

[0013] Beneficial effects: Before the utility model works, the valve core and the sleeve shell are in a power-off and isolated state. At this time, the switch can be turned off first, and then the electromagnetic coil is energized. If the LED light group lights up, it means that the valve core and the sleeve shell are in an electrical contact state under the influence of the electromagnetic coil, and then it can be determined whether the electromagnetic coil is good or bad, whether the magnetic force can drive the electromagnetic valve, and then the magnetic force of the electromagnetic coil can be judged. It is simple and convenient to operate and easy for anyone to use. The whole device is compact and easy to carry, strong and durable, and suitable for any harsh environment. Among them, by replacing different elastic connectors, electromagnetic coils of different magnetic forces can be detected according to the size of the elastic force, and by replacing the sleeve shell, it can be applied to the detection of electromagnetic coils of various models and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a partial structural diagram of the utility model.

[0016] In the figure: 1-sleeve housing; 101-conductive housing; 102-insulating housing; 2-valve core; 3-electromagnetic coil; 4-battery; 5-switch; 6-LED light group; 7-elastic connector; 8-annular mounting plate; 9-bolt. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0018] Example 1:

[0019] like Figure 1 and Figure 2 As shown, this embodiment provides a portable tool for detecting magnetic strength, including a sleeve housing 1, a valve core 2, an electromagnetic coil 3, a battery 4, a switch 5 and an LED light group 6. One end of the battery 4 is electrically connected to the sleeve housing 1 through a first wire, and the other end of the battery 4 is electrically connected to the valve core 2 through a second wire, forming a ring circuit. The switch 5 and the LED light group 6 are connected in series to the first wire or the second wire. When the sleeve housing 1 is electrically in contact with the valve core 2, the switch 5 is closed, the ring circuit is connected, and the LED light group 6 lights up. When the switch 5 is disconnected or the sleeve housing 1 is powered off and isolated from the valve core 2, the LED light group 6 goes out.

[0020] In further detail, the valve core 2 is coaxially arranged with the sleeve housing 1, and the valve core 2 is slidably connected to one end of the sleeve housing 1, thereby facilitating adjustment of the relative position between the valve core 2 and the sleeve housing 1; the electromagnetic coil 3 is sleeved on the outside of the sleeve housing 1, and is used to control the valve core 2 to slide toward the other end of the sleeve housing 1 through the magnetic flux lines generated by the electromagnetic coil 3 when the electromagnetic coil 3 is energized, so that the valve core 2 and the sleeve housing 1 are in electrical contact, and then when the switch 5 is closed, a conductive ring circuit can be formed; one end of the sleeve housing 1 is in contact with the valve core 2 through an elastic connecting member 7, so that when the electromagnetic coil 3 is de-energized, the elastic connecting member 7 can drive the valve core 2 to slide toward one end of the sleeve housing 1 and disconnect the valve core 2 from the sleeve housing 1. When the switch 5 remains in the closed state, as long as the electromagnetic coil 3 is de-energized, the elastic connecting member 7 can drive the valve core 2 to slide toward one end of the sleeve housing 1 and disconnect the valve core 2 from the sleeve housing 1, so that the LED light group 6 can be extinguished.

[0021] Before the present invention works, the valve core 2 and the sleeve housing 1 are in a power-off and isolated state. At this time, the switch 5 can be turned off first, and then the electromagnetic coil 3 is energized. If the LED light group 6 is on, it means that the valve core 2 and the sleeve housing 1 are in an electrical contact state under the influence of the electromagnetic coil 3, and then it can be determined whether the electromagnetic coil 3 is good or bad, whether the magnetic force can drive the electromagnetic valve, and then the magnetic force of the electromagnetic coil 3 can be judged. Its operation is simple and convenient, and it is easy for anyone to use. The whole device is compact and easy to carry, strong and durable, and suitable for any harsh environment. Among them, by replacing different elastic connectors 7, electromagnetic coils 3 of different sizes of magnetic force can be detected by the size of the elastic force. By replacing the sleeve housing 1, it can be applied to the detection of electromagnetic coils 3 of various models and sizes.

[0022] It should be noted that the electromagnetic coil 3 may preferably be an electromagnetic coil of model MSN1G-24DC-OD produced by FESTO.

[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that the sleeve housing 1 includes an insulating housing 102 located at one end thereof and a conductive housing 101 located at the other end thereof, and the insulating housing 102 is fixedly connected to the conductive housing 101 to form a whole; the valve core 2 is made of conductive material; when the electromagnetic coil 3 is powered off, one end of the valve core 2 is inserted into the insulating housing 102, so that the sleeve housing 1 and the valve core 2 are in a power-off and isolated state, and the insulating housing 102 can also be used to maintain the stability of the valve core 2; when the electromagnetic coil 3 is energized, the magnetic flux lines generated by the electromagnetic coil 3 control the valve core 2 to slide toward the other end of the sleeve housing 1 and make the valve core 2 electrically contact with the conductive housing 101, thereby energizing the ring circuit.

[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that the elastic connecting member 7 is a spring with a simple and practical structure. The outer wall of the other end of the valve core 2 is connected to a valve core limiting ring located outside the sleeve housing 1. The two ends of the spring are respectively abutted against the valve core limiting ring and one end of the sleeve housing 1 to ensure the stability of the spring, while also allowing the valve core 2 to be stably and elastically connected to the sleeve housing 1.

[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the portable tool also includes an annular mounting plate 8, which abuts against the outer wall of one end of the sleeve housing 1, and one side of the annular mounting plate 8 contacts one end face of the electromagnetic coil 3, thereby ensuring the relative stability of the overall structure.

[0026] As a preferred technical solution in the present invention, the annular mounting plate 8 is detachably connected to one end of the electromagnetic coil 3 by a bolt 9, further ensuring the relative stability between the annular mounting plate 8 and the electromagnetic coil 3. In this case, the operation of the equipment can be made easier.

[0027] Example 2:

[0028] This embodiment is a further improvement based on the first embodiment. The specific differences between this embodiment and the first embodiment are as follows:

[0029] As a preferred embodiment of the present invention, it needs to be further explained that the portable tool also includes an insulating mounting seat (not shown in the figure) made of ethylene-vinyl acetate copolymer material injected with glue, and a mounting groove is provided at one end of the insulating mounting seat. The valve core 2 and the elastic connecting member 7 are arranged in the mounting groove without affecting the sliding of the valve core 2. The annular mounting plate 8 abuts against one end of the insulating mounting seat, thereby enhancing the stability of the valve core 2. A shell limiting ring is fixed on the outer wall of one end of the sleeve shell 1, and the shell limiting ring is clamped between the annular mounting plate 8 and the insulating mounting seat, thereby further enhancing the stability of the structure and making the overall operation simpler.

[0030] As a preferred implementation scheme in this embodiment, it needs to be further explained that the battery 4, switch 5 and LED light group 6 are all wrapped in an insulating mounting base, making the overall structure more compact and convenient for operation and movement. The switch 5 is a push-button switch and the button of the switch 5 is exposed outside the insulating mounting base, which is convenient for controlling the switch 5. The insulating mounting base is also provided with an observation hole for observing the LED light group 6, which is convenient for observing whether the LED light group 6 is on.

[0031] As a preferred implementation scheme in this embodiment, it needs to be further explained that the LED light group 6 is a red LED light group, which is more conspicuous and more conducive to observation.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A portable tool for detecting magnetic strength, characterized in that: The invention comprises a sleeve housing (1), a valve core (2), an electromagnetic coil (3), a battery (4), a switch (5) and an LED light group (6), wherein one end of the battery (4) is electrically connected to the sleeve housing (1) via a first wire, the other end of the battery (4) is electrically connected to the valve core (2) via a second wire, and the switch (5) and the LED light group (6) are connected in series to the first wire or the second wire; The valve core (2) is coaxially arranged with the sleeve housing (1), and the valve core (2) is slidably connected to one end of the sleeve housing (1); the electromagnetic coil (3) is sleeved on the outside of the sleeve housing (1), and is used to control the valve core (2) to slide toward the other end of the sleeve housing (1) through the magnetic flux generated by the electromagnetic coil (3) when the electromagnetic coil (3) is energized, and to make the valve core (2) and the sleeve housing (1) electrically contacted; one end of the sleeve housing (1) is in contact with the valve core (2) through an elastic connecting piece (7), and is used to drive the valve core (2) to slide toward one end of the sleeve housing (1) through the elastic connecting piece (7) when the electromagnetic coil (3) is de-energized, and to make the valve core (2) and the sleeve housing (1) de-energized and isolated.

2. A portable tool for detecting magnetic strength according to claim 1, characterized in that: The sleeve housing (1) comprises an insulating housing (102) located at one end thereof and a conductive housing (101) located at the other end thereof, wherein the insulating housing (102) is fixedly connected to the conductive housing (101); the valve core (2) is made of a conductive material; when the electromagnetic coil (3) is powered off, one end of the valve core (2) is inserted into the insulating housing (102); when the electromagnetic coil (3) is powered on, the magnetic flux lines generated by the electromagnetic coil (3) control the valve core (2) to slide toward the other end of the sleeve housing (1) and bring the valve core (2) into electrical contact with the conductive housing (101).

3. A portable tool for detecting magnetic strength according to claim 1 or 2, characterized in that: The elastic connecting member (7) is a spring, and the outer wall of the other end of the valve core (2) is connected to a valve core limiting ring located outside the sleeve housing (1), and the two ends of the spring are respectively in contact with the valve core limiting ring and one end of the sleeve housing (1).

4. A portable tool for detecting magnetic strength according to claim 3, characterized in that: The portable tool further comprises an annular mounting plate (8), the annular mounting plate (8) abutting against the outer wall of one end of the sleeve housing (1), and one side of the annular mounting plate (8) contacting one end surface of the electromagnetic coil (3).

5. A portable tool for detecting magnetic strength according to claim 4, characterized in that: The annular mounting plate (8) is detachably connected to one end of the electromagnetic coil (3) via a bolt (9).

6. A portable tool for detecting magnetic strength according to claim 4, characterized in that: The portable tool further comprises an insulating mounting seat made of ethylene-vinyl acetate copolymer material injected with glue, a mounting groove is provided at one end of the insulating mounting seat, a valve core (2) and an elastic connector (7) are arranged in the mounting groove, an annular mounting plate (8) is in contact with one end of the insulating mounting seat, a housing limiting ring is fixed on the outer wall of one end of the sleeve housing (1), and the housing limiting ring is clamped between the annular mounting plate (8) and the insulating mounting seat.

7. A portable tool for detecting magnetic strength according to claim 6, characterized in that: The battery (4), switch (5) and LED light group (6) are all enclosed in an insulating mounting seat. The switch (5) is a push button switch and the button of the switch (5) is exposed outside the insulating mounting seat. The insulating mounting seat is also provided with an observation hole for convenient observation of the LED light group (6).

8. The portable tool for detecting magnetic strength according to claim 1, characterized in that: The LED light group (6) is a red LED light group.

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