Safety detection device for gas installation

Abstract

The utility model relates to the technical field of safety detection devices for gas installation, and discloses a safety detection device for gas installation, which comprises an upper detection sealing jacket and a lower detection sealing jacket which are arranged in pairs, the two ends of the lower detection sealing clamping sleeve and the two ends of the upper detection sealing clamping sleeve are provided with sealing backing rings in a sealing and gluing mode, and the side edges of the upper detection sealing clamping sleeve and the lower detection sealing clamping sleeve are provided with bolt holes at intervals. And the upper detection sealing jacket and the lower detection sealing jacket are fixedly connected through a long bolt and are sealed. The device is simple in structure and suitable for low-cost popularization, synchronous detection can be carried out in the installation stage, ventilation is carried out after safety is determined, and potential safety hazards are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety detection device for gas installation, especially a safety detection device for gas installation. BACKGROUND

[0002] In the gas pipeline installation stage, the joint position needs to be detected for air tightness to ensure safety. The traditional method is to use a methane detector to detect whether there is gas leakage from the part. However, due to the influence of humidity, wind and external air, the accuracy of the detection result is reduced, and the gas is not connected during the installation stage, making it difficult to detect.

[0003] In order to improve and optimize the above problems or deficiencies, the present case is proposed. INVENTION CONTENTS

[0004] A safety detection device for gas installation, comprising a pair of upper and lower detection sealing jackets, a sealing gasket ring is arranged at both ends of the lower detection sealing jacket and the upper detection sealing jacket, and bolt holes are arranged at the side edges of the upper detection sealing jacket and the lower detection sealing jacket, the upper detection sealing jacket and the lower detection sealing jacket are fixedly connected by long bolts and form a sealed cavity.

[0005] It also includes a pressure relief alarm, which is provided with an air-tight movable cavity and an alarm component. When the air-tight movable cavity loses pressure during the detection stage, the alarm component is triggered to start.

[0006] An air extraction pipe joint is arranged on the lower detection sealing jacket, the inner hole of the air extraction pipe joint penetrates, and a one-way valve is arranged inside the air extraction pipe joint. When the air extraction pipe joint is used, an air extraction pump is connected to extract the sealed cavity surrounded by the upper detection sealing jacket and the lower detection sealing jacket to a negative pressure state.

[0007] Preferably, the pressure relief alarm is provided with a battery, an alarm buzzer and an alarm light inside. The battery supplies power to the alarm buzzer and the alarm light through a power supply circuit, and a press switch is arranged in the power supply circuit. An air hole is arranged on the combination surface of the pressure relief alarm and the upper detection sealing jacket. An insurance sealing piece is slidably arranged in the pressure relief alarm. The side wall of the insurance sealing piece is sealingly arranged with the inner wall of the pressure relief alarm. A spring is further arranged in the pressure relief alarm to upwardly press the insurance sealing piece. When the air extraction pump extracts the sealed cavity surrounded by the upper detection sealing jacket and the lower detection sealing jacket to a negative pressure state, the insurance sealing piece compresses the spring downwardly to make the press switch closed. If the gas pipeline interface leaks, the insurance sealing piece is upwardly pressed to trigger the press switch under the action of the spring, and then the alarm buzzer and the alarm light alarm.

[0008] Preferably, a sealing protrusion is symmetrically arranged on the lower detection sealing jacket side, and a sealing slot is symmetrically arranged on the upper detection sealing jacket side, and when the lower detection sealing jacket and the upper detection sealing jacket are butted together, the sealing protrusion is inserted into the sealing slot to form a sealing fit.

[0009] Preferably, the pressure relief alarm is further provided with a charging port connected with the battery, and the battery is a rechargeable lithium battery.

[0010] Preferably, the bolt hole is located outside the fit position of the sealing protrusion and the sealing slot, further improving the sealing performance.

[0011] Preferably, the long bolt connecting the upper detection sealing jacket and the lower detection sealing jacket is a 55-degree sealing pipe threaded bolt.

[0012] The utility model discloses the advantages and positive effect are:

[0013] 1. Simple structure is suitable for low -cost popularization, can carry out synchronous detection in the installation stage, and determines safety and then aerates, effectively reduces the potential safety hazard.

[0014] 2. The device is small and convenient to install, convenient to use in narrow environment, and has strong adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further described below in connection with the drawings and examples.

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is Figure 1 The internal structure schematic diagram of pressure relief alarm 18.

[0018] Mark in the drawing: 10, upper detection sealing jacket; 11, lower detection sealing jacket; 12, air exhaust pipe joint; 13, sealing gasket ring; 14, alarm buzzer; 15, bolt hole; 16, alarm lamp; 17, charging port; 18, pressure relief alarm; 19, battery; 20, press switch; 21, safety sealing element; 22, spring; 23, air hole; 24, sealing protrusion; 25, sealing slot. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail in connection with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, so it only shows the structure related to the utility model.

[0020] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0021] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0022] like Figures 1-2 As shown, the gas installation safety detection device of this utility model includes an upper detection sealing jacket 10 and a lower detection sealing jacket 11 arranged in pairs. Sealing gaskets 13 are provided at both ends of the lower detection sealing jacket 11 and the upper detection sealing jacket 10, and bolt holes 15 are provided on the sides of the upper detection sealing jacket 10 and the lower detection sealing jacket 11 at intervals. The upper detection sealing jacket 10 and the lower detection sealing jacket 11 are fixedly connected by long bolts to form a seal.

[0023] It also includes a pressure relief alarm 18, which has an airtight movable cavity and an alarm component. When the airtight movable cavity loses pressure during the detection phase, the alarm component is triggered and activated.

[0024] An air extraction pipe connector 12 is provided on the lower detection sealing jacket 11. The inner hole of the air extraction pipe connector 12 is through and a one-way valve is provided inside it. When in use, the air extraction pipe connector 12 is connected to an external air extraction pump to draw the sealing cavity enclosed by the upper detection sealing jacket 10 and the lower detection sealing jacket 11 into a negative pressure state.

[0025] Preferably, the pressure relief alarm 18 is internally provided with a battery 19, an alarm buzzer 14 and an alarm lamp 16, wherein the battery 19 supplies power to the alarm buzzer 14 and the alarm lamp 16 through a power supply circuit, and a press switch 20 is arranged in the power supply circuit, an air vent 23 is arranged at the joint surface of the pressure relief alarm 18 and the upper detection sealed jacket 10, an insurance sealing piece 21 is slidably arranged in the pressure relief alarm 18, the side wall of the insurance sealing piece 21 is sealingly arranged with the inner wall of the pressure relief alarm 18, and a spring 22 is further arranged in the pressure relief alarm 18 to upwardly press the insurance sealing piece 21, when the sealed cavity surrounded by the upper detection sealed jacket 10 and the lower detection sealed jacket 11 is extracted to a negative pressure state by the air pump, the insurance sealing piece 21 is compressed downwardly to make the press switch 20 closed, and if the gas pipeline interface leaks, the insurance sealing piece 21 is upwardly pressed to trigger the press switch 20 under the action of the spring 22, and then the alarm buzzer 14 and the alarm lamp 16 alarm.

[0026] Preferably, a sealing protrusion 24 is symmetrically and fixedly arranged at the side edge of the lower detection sealed jacket 11, and a sealing clamping groove 25 is symmetrically and fixedly arranged at the side edge of the upper detection sealed jacket 10, when the lower detection sealed jacket 11 and the upper detection sealed jacket 10 are abutted and matched, the sealing protrusion 24 is inserted into the sealing clamping groove 25 to form a sealing matching.

[0027] Preferably, the pressure relief alarm 18 is further provided with a charging port 17 connected with the battery 19, and the battery 19 is a rechargeable lithium battery.

[0028] Preferably, the bolt hole 15 is located outside the matching position of the sealing protrusion 24 and the sealing clamping groove 25, so as to further improve the sealing performance.

[0029] Preferably, the long bolt connecting the upper detection sealed jacket 10 and the lower detection sealed jacket 11 is a 55-degree sealing pipe threaded bolt.

[0030] It should be emphasized that the embodiments of the utility model are illustrative rather than restrictive, and thus the utility model is not limited to the embodiments described in the specific embodiments, and any other embodiments derived by those skilled in the art according to the technical scheme of the utility model also belong to the protection scope of the utility model.

Claims

1. A safety detection device for gas installation, characterized by: The upper detection sealing jacket (10) and the lower detection sealing jacket (11) are matched and arranged, a sealing gasket ring (13) is arranged at both ends of the lower detection sealing jacket (11) and the upper detection sealing jacket (10), bolt holes (15) are arranged at the side edges of the upper detection sealing jacket (10) and the lower detection sealing jacket (11), and the upper detection sealing jacket (10) and the lower detection sealing jacket (11) are fixedly connected through long bolts and form a seal; A pressure relief alarm (18) is further arranged, the pressure relief alarm (18) is internally provided with an airtight movable cavity and an alarm component, and the alarm component is triggered and started when the airtight movable cavity loses pressure in the detection stage; An air exhaust pipe joint (12) is arranged on the lower detection sealing jacket (11), the air exhaust pipe joint (12) is penetrated by an inner hole, and a one-way valve is arranged in the inner hole, and the air exhaust pipe joint (12) is externally connected with an air exhaust pump in use to exhaust the sealed cavity surrounded by the upper detection sealing jacket (10) and the lower detection sealing jacket (11) to a negative pressure state.

2. The safety detection device for gas installation according to claim 1, characterized in that: The pressure relief alarm (18) is internally provided with a battery (19), an alarm buzzer (14) and an alarm lamp (16), the battery (19) supplies power to the alarm buzzer (14) and the alarm lamp (16) through a power supply circuit, a press switch (20) is arranged in the power supply circuit, a vent hole (23) is arranged on the joint surface between the pressure relief alarm (18) and the upper detection sealing jacket (10), an insurance sealing piece (21) is slidably arranged in the pressure relief alarm (18), the side wall of the insurance sealing piece (21) is sealingly arranged with the inner wall of the pressure relief alarm (18), a spring (22) is further arranged in the pressure relief alarm (18) to upwardly press the insurance sealing piece (21), when the air exhaust pump exhausts the sealed cavity surrounded by the upper detection sealing jacket (10) and the lower detection sealing jacket (11) to a negative pressure state, the insurance sealing piece (21) is compressed downwardly to make the press switch (20) closed, and if the gas pipeline interface leaks, the insurance sealing piece (21) is upwardly pressed to trigger the press switch (20), and then the alarm buzzer (14) and the alarm lamp (16) alarm.

3. The safety detection device for gas installation according to claim 2, characterized in that: Sealing protrusions (24) are symmetrically arranged on the side edges of the lower detection sealing jacket (11), sealing clamping grooves (25) are symmetrically arranged on the side edges of the upper detection sealing jacket (10), and the sealing protrusions (24) are inserted into the sealing clamping grooves (25) to form a sealing fit when the lower detection sealing jacket (11) and the upper detection sealing jacket (10) are abutted and matched.

4. The safety detection device for gas installation according to claim 3, characterized in that: A charging port (17) connected with the battery (19) is further arranged on the pressure relief alarm (18), and the battery (19) is a rechargeable lithium battery.

5. The safety detection device for gas installation according to claim 4, characterized in that: The bolt holes (15) are located outside the matching positions of the sealing protrusions (24) and the sealing clamping grooves (25), and the sealing performance is further improved.

6. The safety detection device for gas installation according to claim 5, characterized in that: The long bolt connecting the upper detection sealing jacket (10) and the lower detection sealing jacket (11) is a 55-degree sealing pipe threaded bolt.

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