Gas leakage prevention joint of gas detector

Abstract

The utility model relates to the technical field of joint leakage prevention, in particular to a gas leakage prevention joint of a gas detector, which comprises a detector joint connected to the gas detector and a connecting pipe orifice connected to a gas storage container, and the detector joint is communicated with the connecting pipe orifice. The top of the connecting pipe opening is fixedly connected with a connecting ring, an annular cavity is formed in the connecting ring, the bottom of the inner wall of the annular cavity is fixedly connected with a sealing ring, and the outer surface of the detector connector is fixedly connected with a pressing ring used in cooperation with the annular cavity; according to the utility model, the pressing ring is locked at the inner side of the connecting ring through the fastening mechanism, so that the pressing ring cannot be separated from the connecting ring, the detector joint fixed with the pressing ring cannot move at the moment, air leakage caused by loose connection between the detector joint and the connecting pipe orifice is avoided, sealing is realized at the sealing ring and the sealing sleeve, and the sealing effect is good. And double sealing between the detector joint and the connecting pipe orifice is realized.

Description

Technical Field

[0001] This utility model relates to the field of leak-proof connector technology, specifically a leak-proof connector for a gas detector. Background Technology

[0002] Leak prevention at gas detector connectors is crucial, primarily due to considerations of both safety and accuracy. First, leaks can lead to the release of toxic, flammable, or explosive gases, directly endangering human health and facility safety; for example, a flammable gas leak could cause a fire or explosion. Second, even minor leaks can interfere with the detector's accurate measurement of gas concentration, resulting in false alarms or missed detections, affecting the timeliness of risk warnings.

[0003] However, the connectors of existing gas detectors are usually connected to the external gas container interface only by threaded connection or bolt fixation. Threaded connection is prone to loosening, which can lead to gas leakage at the gas detector connector and thus create a safety hazard. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof connector for a gas detector to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A leak-proof connector for a gas detector includes a detector connector connected to the gas detector and a connecting pipe connected to a gas storage container. The detector connector and the connecting pipe are connected in communication. A connecting ring is fixedly connected to the top of the connecting pipe. An annular cavity is provided inside the connecting ring. A sealing ring is fixedly connected to the bottom of the inner wall of the annular cavity. A compression ring that mates with the annular cavity is fixedly connected to the outer surface of the detector connector.

[0007] The top of the connecting ring is fixedly connected to three fastening mechanisms arranged in a ring array. Each fastening mechanism includes a fixed sleeve, and a movable pressing block is provided inside the fixed sleeve. The top of the pressing block is inclined and the bottom is horizontal, which is used to press the pressing ring into the annular cavity to prevent the connection between the detector connector and the connecting tube from becoming loose.

[0008] Preferably, the fixing sleeve is fixed to the top of the connecting pipe opening, and a tension spring is fixedly connected inside the fixing sleeve, with one end of the tension spring fixedly connected to the clamping block.

[0009] Preferably, the bottom of the fixing sleeve is provided with a fixing interface, and the inner wall of the fixing interface is welded to the top of the connecting pipe.

[0010] Preferably, the inner surface of the connecting pipe is provided with an internal thread, and the outer surface of the detector connector is provided with an external thread, so as to realize the threaded connection between the detector connector and the connecting pipe.

[0011] Preferably, a connecting tube head is fixedly connected to the bottom of the detector connector, the radius of the connecting tube head is smaller than the radius of the detector connector, and a guide tube head is fixedly connected to the bottom of the connecting tube head, the radius of the guide tube head decreasing from top to bottom.

[0012] Preferably, a sealing sleeve is fixedly connected to the inner surface of the connecting pipe opening, and both the connecting pipe head and the guide pipe head extend into the interior of the sealing sleeve.

[0013] The beneficial effects of this utility model are:

[0014] This invention uses a locking mechanism to lock the pressure ring inside the connecting ring, preventing the pressure ring from detaching from the connecting ring. At this time, the detector connector fixed to the pressure ring will not move, preventing the connection between the detector connector and the connecting pipe from becoming loose and leaking air. At the same time, both the sealing ring and the sealing sleeve are sealed, achieving a double seal between the detector connector and the connecting pipe, ensuring that the connection between the detector connector and the connecting pipe will not leak air. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a utility model Figure 1 Cross-sectional view of the probe port and connecting port;

[0018] Figure 3 This is a utility model Figure 1 Schematic diagram of the intermediate locking mechanism;

[0019] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure at the bottom of the middle fixed sleeve.

[0020] The attached figures are labeled as follows:

[0021] 1. Detector connector; 2. Connecting pipe port; 3. Connecting ring; 4. Sealing ring; 5. Pressing ring; 6. Tightening mechanism; 601. Fixing sleeve; 602. Pressing block; 603. Tension spring; 604. Fixing interface; 7. Connecting pipe head; 8. Guide pipe head; 9. Sealing sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 and Figure 2 A leak-proof connector for a gas detector includes a detector connector 1 connected to the gas detector and a connecting port 2 connected to a gas storage container. Both the gas detector and the gas storage container are existing technologies. The detector connector 1 and the connecting port 2 are connected. By connecting the detector connector 1 and the connecting port 2, the gas detector and the gas storage container can be connected, enabling the gas detector to detect the gas inside the gas storage container. A connecting ring 3 is fixedly connected to the top of the connecting port 2. An annular cavity is provided inside the connecting ring 3. A sealing ring 4 is fixedly connected to the bottom of the inner wall of the annular cavity. A pressure ring 5 that cooperates with the annular cavity is fixedly connected to the outer surface of the detector connector 1. The pressure ring 5 is attached to the top of the sealing ring 4.

[0024] like Figure 1 , Figure 3 and Figure 4 The top of the connecting ring 3 is fixedly connected to three fastening mechanisms 6 arranged in a ring array. The fastening mechanism 6 includes a fixed sleeve 601. The fixed sleeve 601 is provided with a movable pressing block 602. The top of the pressing block 602 is inclined and the bottom is horizontal. It fits perfectly against the top of the pressing ring 5 and is used to press the pressing ring 5 into the annular cavity to prevent the connection between the detector connector 1 and the connecting tube 2 from becoming loose.

[0025] like Figure 1 , Figure 3 and Figure 4 The fixing sleeve 601 is fixed to the top of the connecting pipe port 2. A tension spring 603 is fixedly connected inside the fixing sleeve 601. One end of the tension spring 603 is fixedly connected to the pressing block 602. The tension spring 603 applies pressure to the pressing block 602 towards the outside of the fixing sleeve 601.

[0026] like Figure 1 , Figure 3 and Figure 4 The bottom of the fixing sleeve 601 is provided with a fixing interface 604. The inner wall of the fixing interface 604 is welded and fixed to the top of the connecting pipe 2. By using the fixing interface 604 as the contact surface with the connecting pipe 2, it can be ensured that the fixing sleeve 601 is fixed while the bottom of the pressing block 602 is pressed against the top of the pressing ring 5.

[0027] like Figure 1 and Figure 2 The inner surface of the connecting pipe 2 is provided with an internal thread, and the outer surface of the detector connector 1 is provided with an external thread, which is used to realize the threaded connection between the detector connector 1 and the connecting pipe 2. The threaded connection is located below the connecting ring 3, which can realize the connection between the detector connector 1 and the connecting pipe 2.

[0028] like Figure 1 and Figure 2 The bottom of the detector connector 1 is fixedly connected to a connecting tube head 7, the radius of the connecting tube head 7 is smaller than the radius of the detector connector 1, and the bottom of the connecting tube head 7 is fixedly connected to a guide tube head 8, the radius of the guide tube head 8 decreases from top to bottom, and the bottom of the detector connector 1, the connecting tube head 7 and the guide tube head 8 are connected together in sequence.

[0029] like Figure 1 and Figure 2 A sealing sleeve 9 is fixedly connected to the inner surface of the connecting pipe port 2. The connecting pipe head 7 and the guide pipe head 8 both extend into the interior of the sealing sleeve 9. The radius of the guide pipe head 8 decreases from top to bottom, making it easier for the guide pipe head 8 to move into the interior of the sealing sleeve 9 and to open the sealing sleeve 9. Finally, the sealing sleeve 9 is tightly fitted onto the surface of the connecting pipe head 7, thereby achieving a seal between the detector connector 1 and the connecting pipe port 2.

[0030] The working principle of the leak-proof connector for a gas detector provided by this utility model is as follows:

[0031] When it is necessary to connect the detector connector 1 and the connecting pipe port 2, first insert the bottom of the detector connector 1 into the interior of the connecting pipe port 2, and rotate the detector connector 1 clockwise to move the detector connector 1 downward, so as to realize the threaded connection between the detector connector 1 and the connecting pipe port 2. The threaded connection is used to achieve sealing. The downward movement of the detector connector 1 drives the pressure ring 5, the connecting pipe head 7 and the guide pipe head 8 to move downward.

[0032] As the compression ring 5 moves down, it will press the inclined surface at the top of the clamping block 602 and press the clamping block 602 into the interior of the fixing sleeve 601. At this time, the compression ring 5 can move down smoothly into the interior of the connecting ring 3 and fit tightly against the top of the sealing ring 4. The sealing ring 4 is used to seal between the connecting ring 3 and the compression ring 5, and finally achieves the seal between the detector connector 1 and the connecting pipe 2.

[0033] After the pressing ring 5 moves down into the connecting ring 3, under the action of the tension spring 603, the pressing block 602 moves to the top of the pressing ring 5, fixing the pressing ring 5 inside the connecting ring 3.

[0034] When the connecting tube head 7 and the guide tube head 8 move down, the guide tube head 8 will open the sealing sleeve 9, allowing the connecting tube head 7 to extend into the interior of the sealing sleeve 9. At this time, the sealing sleeve 9 is tightly fitted onto the surface of the connecting tube head 7, and the sealing sleeve 9 is used to seal between the connecting tube head 7 and the connecting tube opening 2, ultimately achieving a seal between the detector connector 1 and the connecting tube opening 2.

[0035] Conversely, manually press the clamping block 602 into the fixed sleeve 601. At this time, the detector connector 1 can be rotated counterclockwise, causing the detector connector 1 to move upward and separate from the connecting pipe port 2, the sealing sleeve 9 and the connecting pipe head 7 to separate, and the pressing ring 5 and the connecting ring 3 to separate.

[0036] Compared with related technologies, the gas detector anti-leakage connector provided by this utility model has the following beneficial effects:

[0037] This invention uses a locking mechanism 6 to lock the compression ring 5 inside the connecting ring 3, preventing the compression ring 5 from detaching from the connecting ring 3. At this time, the detector connector 1, which is fixed to the compression ring 5, will not move, thus preventing the connection between the detector connector 1 and the connecting pipe 2 from becoming loose and leaking air. At the same time, a seal is achieved at both the sealing ring 4 and the sealing sleeve 9, realizing a double seal between the detector connector 1 and the connecting pipe 2, ensuring that the connection between the detector connector 1 and the connecting pipe 2 will not leak air.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A leak-proof connector for a gas detector, comprising a detector connector (1) connected to the gas detector and a connecting port (2) connected to a gas storage container, wherein the detector connector (1) and the connecting port (2) are connected in communication, characterized in that, A connecting ring (3) is fixedly connected to the top of the connecting pipe (2). An annular cavity is provided inside the connecting ring (3). A sealing ring (4) is fixedly connected to the bottom of the inner wall of the annular cavity. A compression ring (5) that works with the annular cavity is fixedly connected to the outer surface of the detector connector (1). The top of the connecting ring (3) is fixedly connected to three fastening mechanisms (6) arranged in a ring array. The fastening mechanism (6) includes a fixed sleeve (601). The fixed sleeve (601) is provided with a movable pressing block (602). The top of the pressing block (602) is inclined and the bottom is horizontal. It is used to press the pressing ring (5) into the annular cavity to prevent the connection between the detector connector (1) and the connecting pipe (2) from becoming loose.

2. The leak-proof connector for a gas detector according to claim 1, characterized in that, The fixing sleeve (601) is fixed to the top of the connecting pipe (2), and a tension spring (603) is fixedly connected inside the fixing sleeve (601). One end of the tension spring (603) is fixedly connected to the clamping block (602).

3. The gas detector leak-proof connector according to claim 2, characterized in that, The bottom of the fixed sleeve (601) is provided with a fixed interface (604), and the inner wall of the fixed interface (604) and the top of the connecting pipe (2) are welded and fixed.

4. The gas detector leak-proof connector according to claim 1, characterized in that, The inner surface of the connecting pipe (2) is provided with an internal thread, and the outer surface of the detector connector (1) is provided with an external thread, so as to realize the threaded connection between the detector connector (1) and the connecting pipe (2).

5. The leak-proof connector for a gas detector according to claim 1, characterized in that, The bottom of the detector connector (1) is fixedly connected to a connecting tube head (7), the radius of the connecting tube head (7) is smaller than the radius of the detector connector (1), and the bottom of the connecting tube head (7) is fixedly connected to a guide tube head (8), the radius of the guide tube head (8) decreases from top to bottom.

6. The leak-proof connector for a gas detector according to claim 5, characterized in that, A sealing sleeve (9) is fixedly connected to the inner surface of the connecting pipe (2), and the connecting pipe head (7) and the guide pipe head (8) both extend into the interior of the sealing sleeve (9).

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