Safety joint matched with canned gas

Abstract

The utility model discloses a safety joint matched with canned gas for use, which comprises a detection device, and the detection device comprises a control panel, and a self-closing valve and a flow pressure sensor which are respectively and electrically connected with the control panel. According to the safety joint, the detection device is arranged, so that the safety joint has the function of detecting the residual amount of liquefied gas, a user can conveniently know the residual amount condition of the gas in the gas tank, when the residual amount of the gas is insufficient, the gas can be inflated in time, the problem that the cooking process is interrupted due to gas shortage of the gas tank is effectively solved, and better user experience is obtained. Meanwhile, the flow pressure sensor can collect the pressure value and the flow value in the gas pipe in real time and transmit the data to the control panel, a computer program embedded in the control panel can accurately judge whether gas leakage occurs or not according to changes of the pressure value and the flow value, and intelligent detection of gas leakage is achieved. When gas leakage is detected, the motor operates automatically to drive the closing plug to plug the valve port, so that dangerous situations are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas safety technical field, especially a safety joint matched with canned gas. BACKGROUND

[0002] Liquefied gas is a colorless volatile liquid obtained by pressurizing and cooling natural gas in a refinery. Using liquefied gas as fuel, because of its high calorific value, no smoke and no carbon residue, it is easy to operate and use, and has been widely used in people's life. Bottled supply is to distribute liquefied gas from a sealed steel cylinder to each household through a storage and distribution station as a gas source for household stoves. In the use process, liquefied gas is continuously consumed, and the user needs to estimate the remaining amount by shaking the steel cylinder or lifting the weight to confirm the remaining amount of liquefied gas, which cannot accurately grasp the remaining gas amount and is easy to cause cooking interruption or inconvenience of temporary gas replacement.

[0003] Liquefied gas is extremely easy to ignite, and when its content in the air reaches a certain concentration range, it can explode when encountering an open flame. In the prior art, in order to prevent safety accidents caused by liquefied gas leakage, a gas detection device is usually arranged in the kitchen to detect the concentration of the gas, and when the gas concentration reaches a threshold value, a buzzer alarm is performed to remind people to take timely measures. However, due to the larger space setting of some kitchens, the gas concentration is often concentrated at the gas leakage place, and the concentration of other spaces in the kitchen is lower, which leads to lower feasibility of the gas detection device. When the overall indoor gas concentration reaches the threshold value, the gas leakage situation is often very urgent. In addition, only the buzzer alarm on site, when the user is away from home, cannot timely know the liquefied gas leakage situation, leading to dangerous consequences.

[0004] In view of the above situation, there is an urgent need for a gas tank joint that can detect the remaining amount of liquefied gas and automatically close when gas leakage occurs. UTILITY MODEL CONTENT

[0005] The utility model aims at the defects and deficiencies of the prior art, and provides a safety joint matched with canned gas, which can detect the remaining amount of liquefied gas and automatically close when gas leakage occurs.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of safety joint matched with canned gas, including gas pipe, the end of the gas pipe is sequentially provided with first nut, connecting portion and second nut from front to back, the rear end of the connecting portion is inserted into the front end of gas pipe, and fixed connection with gas pipe is realized by second nut, further including detection device, the detection device is arranged between first nut and second nut, the detection device includes control panel and self-closing valve and flow pressure sensor electrically connected with control panel respectively, the outside wall of the connecting portion is fixedly provided with mounting box, the control panel and flow pressure sensor are all arranged in mounting box, and the detection end of the flow pressure sensor is inserted into the internal passage of gas pipe;The self-closing valve includes motor and closure plug, the motor is fixedly connected to the inner side wall of gas pipe, the closure plug is arranged at the free end of the output shaft of the motor, the inner wall of the gas pipe is provided with the valve port matched with closure plug, the output shaft of the motor can be extended and retracted relative to motor to drive the closure plug to open and close the valve port.

[0008] Further, the output shaft of the motor is arranged along the length direction of the gas pipe, and the closure plug moves along the length direction of the gas pipe.

[0009] Further, a battery compartment is further arranged in the mounting box, and a battery is assembled in the battery compartment.

[0010] Further, the control panel is connected with an external power supply.

[0011] Further, a snap ring is arranged at the front end of the connecting portion, and a convex ring is arranged at the rear end of the first nut and limitedly matched with the snap ring.

[0012] Further, a sealing ring is arranged in the first nut, and the rear end surface of the sealing ring is matched with the front end surface of the snap ring.

[0013] Further, a plurality of protruding portions are arranged at the rear end of the connecting portion.

[0014] Further, a metal cladding layer is arranged outside the gas pipe.

[0015] Further, a first O-shaped sealing ring is arranged between the flow pressure sensor and the connecting portion.

[0016] Further, the control panel is integrated with a wireless communication module, the wireless communication module is communicatively connected with a cloud server, and the cloud server is further communicatively connected with a user terminal.

[0017] With the above structure, the beneficial effects of the utility model are that: the safe joint matched with the canned gas provided by the utility model comprises a detection device, the detection device comprises a control panel and a self-closing valve and a flow pressure sensor which are electrically connected with the control panel respectively. The utility model has the function of detecting the residual amount of liquefied gas by setting the detection device, and the user can conveniently know the residual amount of gas in the gas tank, and once the residual amount of gas is insufficient, the gas can be filled in time, the problem that the cooking process is interrupted due to the lack of gas in the gas tank is effectively avoided, and better user experience is obtained. At the same time, the flow pressure sensor can collect the pressure value and flow value in the gas pipe in real time, and transmit these data to the control panel, and the computer program embedded in the control panel can accurately judge whether gas leakage occurs according to the change of the pressure value and flow value, and the intelligent detection of gas leakage is realized. Moreover, when detecting the gas leakage, the motor is automatically operated to drive the closure plug to block the valve port, thereby avoiding the occurrence of dangerous situations and providing strong protection for the use safety of the user. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiment of the utility model, the drawings needed to be used in the description of the specific embodiment will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0019] Figure 1 It is the overall structure of the utility model sectional view;

[0020] Figure 2 It is the overall structure of the utility model sectional view; Figure 1 The structure of A of the utility model is enlarged and shows the schematic diagram.

[0021] Figures 1 to 2 The reference numerals in the drawings are:

[0022] 1, gas pipe; 11, metal cladding layer; 2, first nut; 21, snap ring; 22, convex ring; 23, sealing ring; 3, connecting part; 31, convex part; 4, second nut; 5, detection device; 51, control panel; 52, self-closing valve; 521, motor; 5211, output shaft; 522, closure plug; 523, valve port; 53, flow pressure sensor; 54, mounting box; 541, battery compartment; 542, battery; 6, first O-shaped sealing ring; 7, wireless communication module; 8, cloud server; 9, user terminal. SPECIFIC EMBODIMENT

[0023] In order to make the above object, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of the term "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0026] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the utility model, unless there is explicit provision and limitation, if there is similar description such as first feature is on or under second feature, its meaning can be that first and second features directly contact, or first and second features indirectly contact through intermediate medium.Moreover, first feature can be directly above or obliquely above second feature, or just indicate that horizontal height of first feature is higher than second feature.First feature can be directly below or obliquely below second feature, or just indicate that horizontal height of first feature is less than second feature.

[0028] It should be noted that if an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element.If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element.If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the utility model are for illustrative purposes only and do not represent the only implementation.

[0029] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] As Figure 1 and Figure 2As shown, a kind of canned gas safety joint for supporting, including gas pipe 1, the end of the gas pipe 1 is sequentially provided with first nut 2, connecting portion 3 and second nut 4 from front to back, the rear end of the connecting portion 3 is inserted into the front end of the gas pipe 1, and fixed connection with the gas pipe 1 is realized by second nut 4, characterized by: it further includes detection device 5, the detection device 5 is arranged between first nut 2 and second nut 4, the detection device 5 includes control panel 51 and self-closing valve 52 and flow pressure sensor 53 respectively electrically connected with control panel 51, the outer side wall of the connecting portion 3 is fixedly provided with mounting box 54, the control panel 51 and flow pressure sensor 53 are all arranged in mounting box 54, and the detection end of the flow pressure sensor 53 is inserted into the internal passage of the gas pipe 1;The self-closing valve 52 includes motor 521 and closure plug 522, the motor 521 is fixedly connected to the inner side wall of the gas pipe 1, the closure plug 522 is arranged at the free end of the output shaft 5211 of the motor 521, the inner wall of the gas pipe 1 is provided with the valve port 523 matched with the closure plug 522, the output shaft 5211 of the motor 521 can be extended and retracted relative to the motor 521, to drive the closure plug 522 to open and close the valve port 523.The output shaft 5211 of the motor 521 is arranged along the length direction of the gas pipe 1, and the closure plug 522 moves along the length direction of the gas pipe 1.

[0031] Based on the above embodiment, the utility model wants to solve is provided a kind of canned gas safety joint for supporting, including detection device 5, the detection device 5 includes control panel 51 and self-closing valve 52 and flow pressure sensor 53 respectively electrically connected with control panel 51.The utility model by setting detection device 5 makes safety joint have the function of detecting liquefied gas balance, user can conveniently know the gas balance condition in gas tank, once gas balance is insufficient, can timely carry out aeration, effectively avoid the problem that cooking is interrupted due to gas tank gas shortage, to obtain better user experience.At the same time, flow pressure sensor 53 can real-time acquisition pressure value and flow value in the gas pipe 1, and these data are transmitted to control panel 51, and the computer program embedded in control panel 51 accurately judges whether gas leakage occurs according to the change of pressure value and flow value, realizes the intelligent detection of gas leakage.Moreover, when detecting gas leakage, motor 521 will automatically operate, drive closure plug 522 to quickly block valve port 523, to avoid the occurrence of dangerous situation, provide strong guarantee for the use safety of user.

[0032] In this embodiment, the control board 51 integrates a flow chip with an embedded calculation program. This program analyzes the data collected by the flow and pressure sensor 53 to determine if a leak has occurred. When a gas leak is detected, the control board 51 controls the motor 521 to start. The output shaft 5211 of the motor 521 retracts, driving the closing plug 522 to seal the valve port 523, preventing safety accidents caused by gas leaks. In this embodiment, the computer program embedded in the control board 51 can determine whether a gas leak has occurred based on changes in pressure and flow values, thereby achieving intelligent detection of gas leaks. This technology is existing and will not be elaborated further here. For the specific working principle, please refer to the intelligent leak detection method for stainless steel bellows based on wireless sensor linkage disclosed in Chinese Invention Patent (Publication No.: CN110242866A). In this embodiment, the output shaft 5211 of the motor 521 achieves axial linear movement through a ball screw transmission mechanism, with a stroke of 30±1 mm. The motor 521 adopts a fully enclosed brushless design, and the stator winding and rotor transmit torque through solid magnetic coupling to eliminate the sparks generated by carbon brush friction.

[0033] In another preferred embodiment of this utility model, the control board 51 integrates a wireless communication module 7, which is communicatively connected to a cloud server 8, and the cloud server 8 is also communicatively connected to a user terminal 9. In this embodiment, as... Figure 1 As shown, the gas remaining amount and gas leak information are sent to the cloud server 8 via the wireless communication module 7. The cloud server 8 then sends the information to the user terminal 9 via telecommunication signals. Users can promptly know the remaining gas level and gas leak information in the gas cylinder and take further action. Furthermore, the wireless communication module 7 can also receive signals from the user terminal 9. In the event of a leak, the customer can remotely close the self-closing valve 52 to prevent further escalation of the danger. In this embodiment, the user terminal 9 is a mobile phone, PC, or tablet computer. In a further preferred embodiment, the mounting box 54 is equipped with a display screen (not shown) electrically connected to the control board 51 to display the remaining gas level and pressure in the gas pipe 1, allowing users to view relevant information in the gas pipe 1 even without the user terminal 9.

[0034] As another preferred embodiment of this utility model, the mounting box 54 further includes a battery compartment 541, and a battery 542 is installed inside the battery compartment 541. In this embodiment, as... Figure 1 As shown, the control board 51, motor 521 and flow pressure sensor 53 are powered by battery 542, which increases the convenience of using the safety connector and is not limited by the location of the fixed power supply.

[0035] As another preferred scheme of the utility model, the control panel 51 is connected with an external power supply. In the embodiment, the external power supply can provide power input to the control panel 51, the motor 521 and the flow pressure sensor 53 stably for a long time.

[0036] As another preferred scheme of the utility model, the front end of the connecting part 3 is provided with a snap ring 21, and the rear end of the first nut 2 is provided with a convex ring 22 matched with the snap ring 21. The first nut 2 is internally provided with a sealing ring 23, and the rear end surface of the sealing ring 23 is matched with the front end surface of the snap ring 21. In the embodiment, as shown in the figure, Figure 1 When the snap ring 21 is matched with the convex ring 22 to limit the first nut 2 from being pulled out of the front end of the connecting part 3 during installation, the sealing ring 23 is installed in the first nut 2 and then connected with other gas appliances, valves or pipe fittings, so as to increase the sealing property of the safety joint connection.

[0037] As another preferred scheme of the utility model, the rear end of the connecting part 3 is provided with a plurality of convex parts 31. In the embodiment, as shown in the figure, Figure 1 When the gas pipe 1 is connected to the rear end of the connecting part 3 through the second nut 4, the inner circumferential wall of the gas pipe 1 is matched with the convex ring 22 due to being pressed, so as to effectively increase the pulling force between the gas pipe 1 and the connecting part 3 and reduce the occurrence of the gas pipe 1 being separated from the connecting part 3.

[0038] As another preferred scheme of the utility model, the gas pipe 1 is externally provided with a metal cladding layer 11. In the embodiment, as shown in the figure, Figure 1 The metal cladding layer 11 can effectively resist mechanical impact from the outside, such as collision and extrusion that may occur during construction, so as to prevent the gas pipe 1 from being damaged due to external force and avoid the occurrence of safety accidents such as pipeline rupture and gas leakage. At the same time, the metal cladding layer 11 can also isolate the gas pipe 1 from corrosive substances in the outside world, reduce the corrosion of the gas pipe 1 and prolong the service life of the gas pipe 1.

[0039] As another preferred scheme of the utility model, the flow pressure sensor 53 and the connecting part 3 are provided with a first O-shaped sealing ring 6. In the embodiment, as shown in the figure, Figure 2 Figure 2 The first O-shaped sealing ring 6 increases the sealing property between the flow pressure sensor 53 and the connecting part 3, so as to further improve the air tightness of the safety joint as a whole and improve the safety of the safety joint in use.

[0040] Obviously, the above embodiments are merely exemplary and not limiting. Based on the above description, those skilled in the art can make other different forms of changes or modifications. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims

1. A safety connector for bottled gas, comprising a gas pipe (1), wherein a first nut (2), a connecting part (3), and a second nut (4) are sequentially provided at the end of the gas pipe (1) from front to back, the rear end of the connecting part (3) extends into the front end of the gas pipe (1), and is fixedly connected to the gas pipe (1) by the second nut (4), characterized in that: Further include detection device (5), detection device (5) is arranged between first nut (2) and second nut (4), detection device (5) includes control panel (51) and respectively with control panel (51) electric connection self-closing valve (52) and flow pressure sensor (53), the outer side wall of the connecting portion (3) is fixedly provided with mounting box (54), the control panel (51) and flow pressure sensor (53) are all arranged in mounting box (54), and the detection end of flow pressure sensor (53) extends into the internal passage of gas pipe (1);Self-closing valve (52) includes motor (521) and closing plug (522), motor (521) is fixedly connected to the inner side wall of gas pipe (1), closing plug (522) is arranged at the free end of the output shaft (5211) of motor (521), the inner wall of gas pipe (1) is provided with valve port (523) matched with closing plug (522), the output shaft (5211) of motor (521) can be extended and retracted relative to motor (521), so as to drive closing plug (522) to open and close valve port (523).

2. A safety joint for use with a pressurized gas cylinder as defined in claim 1, characterized in that: The output shaft (5211) of the motor (521) is arranged along the length direction of the gas pipe (1), and the closing plug (522) moves along the length direction of the gas pipe (1).

3. A safety joint for a gas cylinder assembly as claimed in claim 1, wherein: The mounting box (54) is further provided with a battery compartment (541), and the battery compartment (541) is assembled with a battery (542).

4. A safety joint for gas cylinder assembly as claimed in claim 1, wherein: The control panel (51) is connected with an external power supply.

5. A safety joint for gas cylinder assembly as claimed in claim 1, wherein: The front end of the connecting portion (3) is provided with a snap ring (21), and the rear end of the first nut (2) is provided with a convex ring (22) matched with the snap ring (21).

6. A safety joint for a gas cylinder assembly as claimed in claim 5, wherein: The first nut (2) is provided with a sealing ring (23) inside, and the rear end surface of the sealing ring (23) is arranged in close contact with the front end surface of the snap ring (21).

7. A safety joint for gas cylinder assembly as claimed in claim 1, wherein: The rear end of the connecting portion (3) is provided with a plurality of protruding portions (31).

8. A safety joint for gas cylinder assembly as claimed in claim 1, wherein: The outer portion of the gas pipe (1) is provided with a metal cladding layer (11).

9. A safety joint for a gas cylinder assembly as defined in claim 1, wherein: The flow pressure sensor (53) and the connecting portion (3) are provided with a first O-shaped sealing ring (6).

10. A safety joint for a gas cylinder assembly as defined in claim 1, characterized in that: The control panel (51) is integrated with a wireless communication module (7), the wireless communication module (7) is in communication connection with a cloud server (8), and the cloud server (8) is also in communication connection with a user terminal (9).

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