Electric leakage detection terminal

Abstract

The utility model discloses an electric leakage detection terminal, which comprises a shell, a circuit board, a detection module, an alarm module and a bolt, the shell is provided with a mounting cavity and a through hole communicated with the mounting cavity, the circuit board is arranged in the mounting cavity, the circuit board is provided with a trigger module, the detection module is arranged on the circuit board, and the alarm module is arranged on the circuit board. The plug pin is electrically connected with the detection module, penetrates through the through hole and comprises a pin part and a handle part which are connected, the pin part penetrates through the through hole and extends into the mounting cavity to be matched with the trigger module, and the handle part is located outside the shell. A firefighter can determine whether the bolt is pulled out or not according to site conditions to trigger an alarm so as to prompt other personnel to pay attention to accidents, and safety is improved. For other unforeseen circumstances, the electric leakage detection terminal can give an alarm to warn other personnel, so that the functionality of the electric leakage detection terminal is improved.

Description

Technical Field

[0001] The present application relates to the technical field of leakage detection, and in particular to a leakage detection terminal. Background Art

[0002] When conducting rescue operations at the fire scene, firefighters need to quickly detect whether there is leakage in the on-site environment, usually by using a handheld leakage detection stick. The leakage detection stick usually needs to be close to the leakage point within a certain range to sound an alarm, but during the detection, some corners that are difficult to reach will cause trouble for firefighters, and the leakage detection stick will not be able to sound an alarm in time due to the inability to detect. In case of other unexpected situations, the leakage detection stick cannot sound an alarm to warn other people, and its function is relatively simple. Utility Model Content

[0003] The purpose of the embodiment of the utility model is to provide a leakage detection terminal, which can trigger an alarm by pulling out a plug pin, thereby solving the problem of a single function of a leakage detection stick.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] The utility model provides a leakage detection terminal, comprising:

[0006] A housing, wherein the housing is provided with a mounting cavity and a through hole communicating with the mounting cavity;

[0007] A circuit board, the circuit board is arranged in the installation cavity, and the circuit board is provided with a trigger module;

[0008] A detection module, wherein the detection module is disposed on the circuit board;

[0009] an alarm module, the alarm module being disposed on the circuit board and electrically connected to the detection module;

[0010] The latch comprises a pin portion and a handle portion connected to each other, the pin portion passes through the through hole and extends into the mounting cavity to cooperate with the trigger module, and the handle portion is located outside the housing.

[0011] In an embodiment of the present invention, the trigger module is provided with a plug-in hole, the plug-in hole is coaxially arranged with the through hole, and one end of the plug is plugged into the plug-in hole.

[0012] In an embodiment of the utility model, the leakage detection terminal further includes a display screen, the display screen is electrically connected to the circuit board, the housing is provided with a display window, and the display screen is arranged corresponding to the display window.

[0013] In an embodiment of the utility model, the housing is provided with a sound outlet hole communicating with the installation cavity, the alarm module comprises a sound alarm, the sound alarm is arranged on the circuit board and is electrically connected to the detection module.

[0014] In an embodiment of the utility model, a sound cavity is provided in the shell, the sound cavity communicates with the installation cavity and the sound outlet hole, and the sound alarm is provided on a side of the circuit board facing the sound cavity.

[0015] In an embodiment of the utility model, the alarm module further comprises an alarm light, which is arranged on the circuit board and electrically connected to the detection module, and the housing is provided with a light-transmitting window, which is arranged corresponding to the alarm light.

[0016] In one embodiment of the utility model, the alarm module includes a plurality of the alarm lights, which are arranged at intervals on the circuit board, and the housing is provided with a plurality of the light-transmitting windows, which are arranged in one-to-one correspondence with the plurality of the alarm lights.

[0017] In an embodiment of the utility model, an alarm button is provided on the outer surface of the housing, an alarm switch is provided on the circuit board, and the alarm button corresponds to pressing the alarm switch.

[0018] In an embodiment of the present invention, the housing includes a first shell and a second shell, and the first shell is connected to the second shell to enclose and form the installation cavity.

[0019] In an embodiment of the present utility model, the leakage detection terminal further includes a sealing ring, which is disposed between the first shell and the second shell, and seals a connection gap between the first shell and the second shell.

[0020] The beneficial effects of the present application are as follows: the present application sets an installation cavity in the housing for installing a circuit board, a detection module, an alarm module, etc. The detection module is set on the circuit board. When the detection module is close to the leakage point, the alarm module electrically connected to the detection module sounds an alarm. In this way, the firefighter carrying the leakage detection terminal is prompted to detect the leakage through an automatic alarm. In addition, a through hole connected to the installation cavity is provided on the housing, and a plug is inserted through the through hole, and the plug is used to cooperate with the trigger module on the circuit board to plug and unplug the plug to realize the on-off of the circuit in the trigger module. When the circuit in the trigger module is disconnected, the alarm module can sound an alarm without detecting the leakage. In this way, the firefighter can determine whether to pull out the plug to trigger the alarm according to the on-site situation to remind other personnel to pay attention to accidents and improve safety. In case of other unexpected situations, the leakage detection terminal can also sound an alarm to alert other personnel, thereby improving its functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described in detail below based on the drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the leakage detection terminal of the utility model;

[0023] Figure 2 This is an exploded view of the leakage detection terminal of the utility model from the first perspective;

[0024] Figure 3 This is an exploded view of the leakage detection terminal of the utility model from a second viewing angle.

[0025] In the figure:

[0026] 1. Shell; 11. First shell; 111. Display window; 112. Light-transmitting window; 113. Alarm button; 114. Shift button; 12. Second shell; 121. Sound hole; 13. Through hole; 14. Sound cavity; 2. Circuit board; 21. Trigger module; 22. Alarm switch; 3. Latch; 4. Display screen; 5. Alarm light; 6. Sealing ring; 7. Battery. DETAILED DESCRIPTION

[0027] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0028] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] Please refer to Figures 1 to 3 The utility model proposes a leakage detection terminal, including a housing 1, a circuit board 2, a detection module, an alarm module and a plug 3. The housing 1 is provided with a mounting cavity and a through hole 13 communicating with the mounting cavity. The circuit board 2 is provided in the mounting cavity. The circuit board 2 is provided with a trigger module 21. The detection module is provided on the circuit board 2. The alarm module is provided on the circuit board 2 and is electrically connected to the detection module. The plug 3 includes a connected pin part and a handle part. The pin part passes through the through hole 13 and extends into the mounting cavity to cooperate with the trigger module 21. The handle part is located outside the housing. The trigger module is configured to generate an electrical change when the plug is pulled out, thereby triggering the alarm module to sound an alarm.

[0031] In one embodiment, the latch 3 is passed through the through hole 13. When the latch 3 is connected to the trigger module 21, the circuit in the trigger module 21 is connected. When the latch 3 is disconnected from the trigger module 21, the circuit in the trigger module 21 is disconnected, and the alarm module sounds an alarm.

[0032] It can be understood that leakage refers to the failure of the insulating material of the electrical equipment, which causes the current to flow out from the outside of the equipment. At this time, when the human body touches the equipment, a leakage path will be formed, causing the risk of electric shock. In order to avoid the above situation, it is necessary to perform leakage detection on the electrical equipment. The principle of leakage detection is to determine whether there is leakage by checking whether the current in the circuit is balanced. The detection module mainly includes an amplifier, a sensor, etc. During the detection, the detection module detects the current through the principle of electromagnetic induction. The principle is: when the current passes through the wire, a magnetic field is generated. The coil inside the detection module senses this magnetic field, thereby generating a potential difference, and then generating a detection signal. In this process, the current size is proportional to the magnetic field strength generated by the wire. In other words, when the electrical equipment leaks, the detection module will sense the current change and convert the change into an electrical signal output, so that the alarm module enters an alarm state to remind the user to check the equipment. In one embodiment, the principle of leakage detection by the detection module is consistent with the detection principle of the existing leakage detection rod. In one embodiment, the leakage detection terminal includes a control module, the detection module and the alarm module are electrically connected to the control module respectively, the control module is used to receive the detection signal of the detection module, and the control module is used to control the alarm module to alarm when the received detection signal is a leakage signal.

[0033] The trigger module of the present application can be configured in at least the following ways to trigger the alarm module to alarm after the plug 3 is pulled out:

[0034] Trigger module configuration method 1: The trigger module is a conduction module, and a first conductive end and a second conductive end are provided in the conduction module. When the pin 3 is inserted into the through hole 13, the pin connects the first conductive end and the second conductive end. When the first conductive end and the second conductive end are disconnected, the alarm module sounds an alarm.

[0035] Trigger module configuration method two: The trigger module is a through-beam photoelectric sensor set on the circuit board 2. When the pin 3 is inserted, the pin 3 is located on the optical path between the transmitter and the receiver. When the pin 3 is pulled out, the receiver can receive the transmitter light and generate a signal change. The controller detects the electrical signal change and controls the alarm module to sound an alarm.

[0036] Trigger module configuration method three: The trigger module is a push switch. When the pin 3 is inserted, the pin presses the push switch. When the pin is pulled out, the push switch is released, the push switch is reset, and a signal change occurs. The controller detects the change in the electrical signal. The controller controls the alarm module to alarm according to the change in the electrical signal. As long as the electrical signal changes when the pin 3 is pulled out, it will be fine.

[0037] Exemplarily, the circuit in the trigger module 21 is used to short-circuit the corresponding circuit of the alarm module. When the circuit in the trigger module 21 is connected, the alarm module is short-circuited and cannot be started. When the circuit in the trigger module 21 is disconnected, the corresponding circuit of the alarm module operates normally, so that the alarm module issues an alarm. Exemplarily, the circuit in the trigger module 21 is connected in parallel with the corresponding circuit of the alarm module. When the circuit in the trigger module 21 is turned on, since the corresponding circuit of the alarm module has a large resistance, the current only passes through the circuit in the trigger module 21, and the alarm module will not issue an alarm. On the contrary, when the circuit in the trigger module 21 is disconnected, the current can only flow through the corresponding circuit of the alarm module, and the alarm module issues an alarm.

[0038] The latch 3 is inserted into the through hole 13 from the outside of the housing 1, so that the firefighter can grab and pull it out. Optionally, a hanging rope is also provided on the latch 3, and the hanging rope is exposed outside the housing 1 for the firefighter to grab, thereby improving the convenience of operation. At the same time, the end of the hanging rope away from the latch 3 is connected to the housing 1, so that the latch 3 can still be hung on the housing 1 through the hanging rope after being pulled out, so as to avoid the loss of the latch 3 after being pulled out.

[0039] In one embodiment, a back clip is provided on the back of the housing 1, which can be clamped on the firefighter's clothes to free the firefighter's hands, eliminating the need to hold the leakage detection terminal for detection, thereby improving convenience.

[0040] The present application sets an installation cavity in the housing 1 for installing the circuit board 2, the detection module, the alarm module, etc. The detection module is arranged on the circuit board 2. When the detection module is close to the leakage point, the alarm module electrically connected to the detection module sounds an alarm. In this way, the firefighter carrying the leakage detection terminal is prompted to detect the leakage through an automatic alarm. In addition, a through hole 13 connected to the installation cavity is provided on the housing 1, and a plug 3 is inserted through the through hole 13, and the trigger module 21 on the circuit board 2 is connected through the plug 3. The plug 3 is plugged in and out to realize the on-off of the circuit in the trigger module 21. When the circuit in the trigger module 21 is disconnected, the alarm module can sound an alarm without detecting the leakage. In this way, the firefighter can determine whether to pull out the plug 3 to trigger the alarm according to the on-site situation, so as to remind other personnel to pay attention to accidents and improve safety. In case of other unexpected situations, the leakage detection terminal can also sound an alarm to alert other personnel, thereby improving its functionality.

[0041] Please refer to Figure 1 and Figure 2 In one embodiment of the utility model, the trigger module 21 is provided with a plug hole, which is coaxially arranged with the through hole 13 , and one end of the plug pin 3 is plugged into the plug hole to connect the circuit in the trigger module 21 .

[0042] Exemplarily, the through hole 13 is located at the top of the housing 1, and the plug hole is correspondingly located at the top of the trigger module 21, and the two are arranged correspondingly so that the plug 3 passes through the through hole 13 and is directly inserted into the plug hole. Optionally, a spring is provided in the plug hole, and the spring elastically abuts against one end of the plug 3, thereby connecting the circuit in the trigger module 21. In this way, the connection with the plug 3 is buffered by the spring to avoid excessive abutment between the plug 3 and the trigger module 21, thereby preventing the two from being squeezed and damaged, thereby extending their service life.

[0043] like Figure 2 As shown, in one embodiment of the utility model, the leakage detection terminal also includes a display screen 4, the display screen 4 is electrically connected to the circuit board 2, the housing 1 is provided with a display window 111, and the display screen 4 is arranged corresponding to the display window 111. It can be understood that the display screen 4 can display the use of the leakage detection terminal, which is convenient for firefighters to observe. Exemplarily, the detection module detects the strength of the electric field at the scene and displays it on the display screen 4, so that the firefighters can judge which direction the electric field is stronger, thereby facilitating the judgment of the leakage point. In one embodiment, a battery 7 is installed in the leakage detection terminal, and the display screen 4 can also display the power of the battery 7. The battery 7 can be recharged and used repeatedly. In this way, by observing the power of the battery 7 displayed on the display screen 4, it can be judged whether the battery 7 needs to be charged. In addition, the leakage detection terminal can also adjust the detection sensitivity through the gear button 114, so that the leakage position can be determined more accurately, and the display screen 4 can display the current sensitivity, which is convenient for adjustment.

[0044] like Figure 3 As shown, in one embodiment of the utility model, the housing 1 is provided with a sound outlet 121 connected to the mounting cavity, and the alarm module includes a sound alarm, which is arranged on the circuit board 2 and electrically connected to the detection module. Optionally, the sound alarm is a buzzer to sound a buzzer alarm. In a noisy environment or when it is inconvenient for firefighters to make a sound, the sound alarm can sound an alarm to remind firefighters or other personnel to pay attention to safety.

[0045] Please refer to Figure 2 and Figure 3In one embodiment of the utility model, a sound cavity 14 is provided in the housing 1, and the sound cavity 14 is connected to the mounting cavity and the sound outlet hole 121, and the sound alarm is provided on the side of the circuit board 2 facing the sound cavity 14. It can be understood that the space occupied by the sound cavity 14 is greater than the space occupied by the sound alarm. The sound emitted by the sound alarm first passes through the sound cavity 14 and then emits from the sound outlet hole 121. The sound cavity 14 can effectively amplify the sound emitted by the sound alarm at the sound outlet hole 121, improve the sound effect, and better warn firefighters or other personnel. Exemplarily, a groove is provided on one side wall of the mounting cavity, and the groove is connected to the sound outlet hole 121 to form the sound cavity 14. At the same time, the sound alarm is located on the side of the circuit board 2 facing the sound cavity 14, so that the sound alarm can emit sound directly to the sound cavity 14, and the sound emitted through the sound cavity 14 is louder.

[0046] Please refer to Figure 1 and Figure 2 In one embodiment of the utility model, the alarm module further includes an alarm light 5, which is disposed on the circuit board 2 and electrically connected to the detection module. The housing 1 is provided with a light-transmitting window 112, which is provided corresponding to the alarm light 5. Exemplarily, an LED lamp bead is provided on the circuit board 2 to serve as the alarm light 5, and the alarm light 5 can emit light through the light-transmitting window 112 to alert firefighters and other personnel. In an environment where it is difficult to hear the alarm sound, it is also possible to determine whether a leakage occurs by observing whether the alarm light 5 is on, so as to improve the warning effect.

[0047] In one embodiment of the utility model, the alarm module includes a plurality of alarm lights 5, which are arranged at intervals on the circuit board 2, and the housing 1 is provided with a plurality of light-transmitting windows 112, and the plurality of light-transmitting windows 112 and the plurality of alarm lights 5 are arranged in a one-to-one correspondence. In order to avoid a situation where one alarm light 5 is covered and the firefighters cannot receive the warning, a plurality of alarm lights 5 are provided to improve the warning effect. Exemplarily, the four corners of the circuit board 2 are provided with alarm lights 5, and at the same time, the four corners of the housing 1 are provided with light-transmitting windows 112, and the four alarm lights 5 emit light through the four light-transmitting windows 112 respectively. When an alarm needs to be issued, the alarm lights 5 light up to serve as a warning.

[0048] In one embodiment of the utility model, an alarm button 113 is provided on the outer surface of the housing 1, and an alarm switch 22 is provided on the circuit board 2, and the alarm button 113 corresponds to pressing the alarm switch 22. By pressing the alarm button 113 externally to trigger the alarm switch 22, the alarm module can sound an alarm, and in this way, an alarm can also be sounded without detecting leakage. For example, a firefighter observes a disconnected wire in the distance, but cannot approach the disconnected wire due to a small space or obstacles, and the leakage detection terminal cannot sound an alarm according to the detection module. At this time, an alarm can be sounded by pressing the alarm button 113, or by pulling out the plug 3, providing more options for the firefighter to choose the operation.

[0049] Optionally, the leakage detection terminal includes a control module arranged on the circuit board 2, and the alarm switch 22 and the alarm module are electrically connected to the control module. When the alarm switch 22 is triggered by pressing the alarm button 113 externally, the control module receives the trigger signal of the alarm switch 22, and the control module controls the alarm module to issue an alarm according to the trigger signal.

[0050] In an embodiment of the present invention, the housing 1 includes a first shell 11 and a second shell 12 . The first shell 11 and the second shell 12 are connected to form a mounting cavity.

[0051] Optionally, the first shell 11 and the second shell 12 are detachably connected to facilitate assembly and maintenance, such as screw connection, snap connection, etc. Specifically, the first shell 11 serves as the front shell, and the display window 111, the light-transmitting window 112, and the buttons are arranged on the first shell 11 to facilitate firefighters to observe and operate. The second shell 12 serves as the rear shell, and the sound outlet 121 and the sound cavity 14 are arranged on the second shell 12 to make sound on the back of the shell 1, so as to reasonably utilize the installation space.

[0052] In one embodiment of the utility model, the leakage detection terminal also includes a sealing ring 6, which is arranged between the first shell 11 and the second shell 12, and the sealing ring 6 seals the connection gap between the first shell 11 and the second shell 12. It can be understood that the side wall of the installation cavity of the sealing ring 6 surrounds to seal the connection gap between the first shell 11 and the second shell 12, plays a role in waterproofing and dustproofing, and prolongs the service life of the leakage detection terminal. Optionally, a positioning ring groove is provided on the first shell 11 or the second shell 12, and the sealing ring 6 is installed in the positioning ring groove to avoid displacement of the sealing ring 6 and realize positioning installation. When the first shell 11 and the second shell 12 are connected, the sealing ring 6 is sealed and abutted with the first shell 11 and the second shell 12 respectively to achieve sealing. The sealing ring 6 can be a rubber ring or a silicone ring, which is not limited here.

[0053] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0054] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0055] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0056] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. A leakage detection terminal, characterized in that: The leakage detection terminal comprises: A housing (1), the housing (1) being provided with a mounting cavity and a through hole (13) communicating with the mounting cavity; A circuit board (2), the circuit board (2) being arranged in the installation cavity, and the circuit board (2) being provided with a trigger module (21); A detection module, the detection module being arranged on the circuit board (2); an alarm module, the alarm module being arranged on the circuit board (2) and being electrically connected to the detection module; A latch (3), the latch (3) comprising a pin portion and a handle portion connected to each other, the pin portion extending through the through hole (13) into the mounting cavity to cooperate with the trigger module (21), and the handle portion being located outside the housing.

2. The leakage detection terminal according to claim 1, characterized in that: The trigger module (21) is provided with a plug-in hole, the plug-in hole is coaxially arranged with the through hole (13), and one end of the plug pin (3) is plugged into the plug-in hole.

3. The leakage detection terminal according to claim 1, characterized in that: The leakage detection terminal further comprises a display screen (4), the display screen (4) being electrically connected to the circuit board (2), the housing (1) being provided with a display window (111), and the display screen (4) being arranged corresponding to the display window (111).

4. The leakage detection terminal according to claim 1, characterized in that: The housing (1) is provided with a sound outlet hole (121) communicating with the installation cavity; the alarm module comprises a sound alarm; the sound alarm is arranged on the circuit board (2) and is electrically connected to the detection module.

5. The leakage detection terminal according to claim 4, characterized in that: A sound cavity (14) is provided in the housing (1), the sound cavity (14) being in communication with the mounting cavity and the sound outlet hole (121), and the sound alarm is arranged on a side of the circuit board (2) facing the sound cavity (14).

6. The leakage detection terminal according to any one of claims 1 to 5, characterized in that: The alarm module further comprises an alarm light (5), the alarm light (5) being arranged on the circuit board (2) and electrically connected to the detection module, the housing (1) being provided with a light-transmitting window (112), the light-transmitting window (112) being arranged corresponding to the alarm light (5).

7. The leakage detection terminal according to claim 6, characterized in that: The alarm module comprises a plurality of alarm lights (5), the plurality of alarm lights (5) being arranged at intervals on the circuit board (2), the housing (1) being provided with a plurality of light-transmitting windows (112), and the plurality of light-transmitting windows (112) and the plurality of alarm lights (5) being arranged in a one-to-one correspondence.

8. The leakage detection terminal according to any one of claims 1 to 5, characterized in that: An alarm button (113) is provided on the outer surface of the housing (1), an alarm switch (22) is provided on the circuit board (2), and the alarm button (113) corresponds to pressing the alarm switch (22).

9. The leakage detection terminal according to any one of claims 1 to 5, characterized in that: The housing (1) comprises a first shell (11) and a second shell (12); the first shell (11) and the second shell (12) are connected to form the installation cavity.

10. The leakage detection terminal according to claim 9, characterized in that: The leakage detection terminal further comprises a sealing ring (6), wherein the sealing ring (6) is arranged between the first shell (11) and the second shell (12), and the sealing ring (6) seals a connection gap between the first shell (11) and the second shell (12).

Images