Pressure detection device for flame arrester

Abstract

The utility model discloses a pressure detection device for a flame arrester, which comprises a pressure gauge main body, a dial plate is arranged at the front end of the pressure gauge main body, a detection tube is arranged at the bottom end of the pressure gauge main body, a mounting tube is arranged at the bottom end of the detection tube, and a gasket is arranged at the bottom end outside the detection tube. A sealing gasket is arranged at the bottom end of the gasket, and a connecting frame is arranged at the front end of the outer side of the pressure gauge body. By arranging the protection assembly at the front end of the dial plate, the mounting frame is embedded and mounted on the inner side of the connecting frame through threaded connection during use, and the mounting depth is limited through the first limiting sheet, so that the purpose of mounting the tempered glass protection sheet at the front end of the dial plate can be achieved; therefore, the protection performance of the device is further effectively improved while a technician is not influenced to check pressure detection data of the device, and the phenomenon that the accuracy of a detection value is influenced by collision and damage of a dial plate when the pressure detection device is used is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fire prevention, in particular to a pressure detection device for a flame arrester. Background Art

[0002] Flame arrester is a safety device installed in the pipeline that transports flammable gas to prevent the flame spread of flammable gas and flammable liquid vapor. In order to ensure the normal operation of the flame arrester, it is necessary to install a pressure detection device on it to ensure that the pressure inside the flame arrester remains within a reasonable range;

[0003] A pressure detection device for a flame arrester disclosed in the utility model with authorization announcement number CN210904784U comprises a flame arrester body and a vertically arranged detection disk, a transmission cavity is arranged in the detection disk, a reading tube is fixedly connected to the peripheral side wall of the transmission cavity, the head end and the tail end of the reading tube are not connected and are both placed at the lower end of the transmission cavity, a transparent reading circle is fixedly embedded in the side wall of the detection disk, the position of the reading circle corresponds to the reading tube, an opening is arranged at the tail end of the reading tube, a driven slider is sealed and slidably connected in the reading tube, a detection hard tube is fixedly connected to the lower end of the detection disk, the upper end of the detection hard tube penetrates the detection disk and is connected to the head end of the reading tube, the detection hard tube is sealed and slidably connected to an active slider through a sliding mechanism on the inner side wall, a sealed space is formed between the active slider and the driven slider and filled with a colored liquid, and a reset mechanism is arranged in the transmission cavity. The utility model is provided with a sealing mechanism, which can seal the connection between the detector and the flame arrester, thereby ensuring the accuracy of the detection result. However, during the application of this technical solution, the dial of the detection device is usually isolated and protected by ordinary glass or transparent plastic. The dial is easily broken or worn and scratched, affecting the accuracy of the pressure detection results. There is a technical problem that the detection device cannot be effectively protected while ensuring normal readings. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a pressure detection device for a flame arrester, which can solve the technical problem that the detection device dial is usually isolated and protected by ordinary glass or transparent plastic, the dial is easily broken or worn and scratched, affecting the accuracy of the pressure detection result, and the detection device cannot be effectively protected while ensuring normal readings.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a pressure detection device for a flame arrester, comprising a pressure gauge body, a dial is arranged at the front end of the pressure gauge body, a detection tube is arranged at the bottom end of the pressure gauge body, a mounting tube is arranged at the bottom end of the detection tube, a gasket is arranged at the bottom end outside the detection tube, a sealing gasket is arranged at the bottom end of the gasket, a connecting frame is arranged at the front end of the outer side of the pressure gauge body, a mounting frame is arranged at the front end of the inner side of the connecting frame, a first limiting plate is arranged at the front end of the mounting frame, a tempered glass protective plate is arranged at the front end between the inner sides of the mounting frame, and a positioning component is arranged on the outer side of the gasket.

[0006] As a preferred technical solution of the utility model, the connecting frame, the mounting frame and the first limiting plate are annular, and the tempered glass protection plate is circular.

[0007] As a preferred technical solution of the utility model, the inner side of the connecting frame is provided with an internal thread, and the outer side of the installation frame is provided with an external thread matching the internal thread.

[0008] As a preferred technical solution of the utility model, the installation tube is connected to the detection tube, and the outer side of the installation tube is provided with an external thread.

[0009] As a preferred technical solution of the utility model, the positioning assembly includes a positioning sleeve, which is arranged on the outside of the gasket, a slider is arranged on the inside of the positioning sleeve, a second limiting plate is arranged between the top of the slider and the top of the inner side of the positioning sleeve, and a limiting slot is arranged on the outside of the gasket.

[0010] As a preferred technical solution of the utility model, the limiting slot and the slider are provided in two groups, the limiting slot is symmetrically arranged on the outer side of the gasket, the slider is symmetrically arranged on the inner side of the positioning sleeve, the slider is clamped in the inside of the limiting slot, and the slider can be lifted and slid on the inner side of the limiting slot.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By arranging a protective component at the front end of the dial, the installation frame is installed on the inner side of the connection frame through threaded connection when in use, and the installation depth is limited by the first limiting piece, so that the purpose of installing the tempered glass protective piece on the front end of the dial can be achieved, thereby further effectively improving the protection performance of the device without affecting the technicians' viewing of the device pressure detection data, and preventing the dial from being damaged by bumps when the pressure detection device is in use, which affects the accuracy of the detection value;

[0013] 2. By arranging a positioning component on the outer side of the gasket, the positioning sleeve is used to vertically position the mounting tube when the mounting tube with threads on the outside is screwed into the preset hole on the flame arrester, so as to avoid the mounting tube being deflected during the installation process, causing the threads to be damaged and affecting the normal disassembly and assembly of the subsequent device. In the process of screwing the mounting tube in, the positioning sleeve rises relatively, and the slider slides relatively upward in the limited card groove, so that the mounting tube can be vertically positioned without affecting its normal screwing in, which is convenient for the staff to disassemble and assemble the pressure detection device and has stronger operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the installation frame of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0018] Among them: 1. Pressure gauge body; 2. Connection frame; 3. Detection tube; 4. Positioning sleeve; 5. Installation tube; 6. First limiting plate; 7. Dial; 8. Installation frame; 9. Tempered glass protection plate; 10. Sealing gasket; 11. Limiting slot; 12. Gasket; 13. Slider; 14. Second limiting plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] Example

[0021] Please refer to Figure 1-4As shown, the utility model provides a pressure detection device for a flame arrester, comprising a pressure gauge body 1, a dial 7 is provided at the front end of the pressure gauge body 1, a detection tube 3 is provided at the bottom end of the pressure gauge body 1, a mounting tube 5 is provided at the bottom end of the detection tube 3, the mounting tube 5 is communicated with the detection tube 3, an external thread is provided on the outer side of the mounting tube 5, the device is mounted on the flame arrester through the mounting tube 5, a gasket 12 is provided at the bottom end of the outer side of the detection tube 3, a sealing gasket 10 is provided at the bottom end of the gasket 12, and when the device is mounted on the flame arrester through the mounting tube 5, the gasket 12 and the sealing gasket 10 are used to seal the mounting position;

[0022] As a further implementation of this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the front end of the outer side of the pressure gauge body 1 is provided with an annular connecting frame 2, the front end of the inner side of the connecting frame 2 is provided with an annular mounting frame 8, the inner side of the connecting frame 2 is provided with an internal thread, the outer side of the mounting frame 8 is provided with an external thread matching the internal thread, the front end of the mounting frame 8 is provided with a first limiting piece 6, and the front end between the inner sides of the mounting frame 8 is provided with a circular tempered glass protective piece 9. The mounting frame 8 is installed on the inner side of the connecting frame 2 through threaded connection and embedding to achieve the purpose of installing the tempered glass protective piece 9 on the front end of the dial 7, and the installation depth is limited by the first limiting piece 6, thereby further effectively improving the protection performance of the device without affecting the technicians to view the pressure detection data of the device, and avoiding the dial 7 from being damaged by bumps when the pressure detection device is used, which affects the accuracy of the detection value;

[0023] When in use, the installation frame 8 is installed on the inner side of the connection frame 2 through threaded connection, and the installation depth is limited by the first limiting piece 6, so that the tempered glass protection piece 9 is installed on the front end of the dial 7. The tempered glass protection piece 9 can make the protection performance of the device higher while not affecting the technicians viewing the pressure detection data of the device;

[0024] As a further implementation of this embodiment, Figure 1-4As shown, a positioning assembly is arranged on the outside of the gasket 12, and the positioning assembly includes a positioning sleeve 4, which is arranged on the outside of the gasket 12. When the mounting tube 5 is used to install the device on the flame arrester, the mounting tube 5 is vertically positioned by the positioning sleeve 4 to avoid the mounting tube 5 from being deflected during the installation process, resulting in damage to the thread and affecting the normal disassembly and assembly of the subsequent device. A slider 13 is arranged on the inside of the positioning sleeve 4, and the slider 13 is symmetrically arranged on the inside of the positioning sleeve 4. A second limiting sheet 14 is arranged between the top of the slider 13 and the top of the inner side of the positioning sleeve 4. The gasket 1 2 is provided with a limiting slot 11 on the outside, and the limiting slot 11 is symmetrically arranged on the outside of the gasket 12. There are two groups of limiting slots 11 and sliders 13. The slider 13 is clamped inside the limiting slot 11, and the slider 13 can be lifted and slid inside the limiting slot 11. During the process of screwing into the mounting tube 5, the positioning sleeve 4 rises relatively, and the slider 13 slides relatively upward in the limiting slot 11, so that the mounting tube 5 can be vertically positioned without affecting its normal screwing in, which is convenient for the staff to disassemble and assemble the pressure detection device, and the operability is stronger;

[0025] When the mounting tube 5 with threads on the outside is screwed into the preset hole on the flame arrester, the mounting tube 5 is vertically positioned by the positioning sleeve 4 to prevent the mounting tube 5 from being deflected during the installation process and causing the threads to be damaged. In the process of screwing the mounting tube 5, the positioning sleeve 4 rises relatively, and the slider 13 slides relatively upward in the limited slot 11, so that the mounting tube 5 can be vertically positioned without affecting its normal screwing.

[0026] Specific working principle:

[0027] When using the pressure detection device, first install the device on the flame arrester through the mounting tube 5 with external threads, and at the same time, vertically position the mounting tube 5 through the positioning sleeve 4 to prevent the mounting tube 5 from being deflected during the installation process and causing damage to the thread, and in the process of screwing in the mounting tube 5, the positioning sleeve 4 rises relatively, and at the same time, the slider 13 slides relatively upward in the limiting slot 11, so that the mounting tube 5 can be vertically positioned without affecting its normal screwing in, and after tightening the mounting tube 5, the installation position is sealed by the gasket 12 and the sealing gasket 10, and then the mounting frame 8 is installed on the inner side of the connecting frame 2 through a threaded connection, and the installation depth is limited by the first limiting plate 6, so that the tempered glass protective plate 9 is installed at the front end of the dial 7, and the tempered glass protective plate 9 can make the protection performance of the device higher without affecting the technician's viewing of the device pressure detection data, and the device displays the pressure value through the dial 7 pointer when performing pressure detection on the inside of the flame arrester.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pressure detection device for a flame arrester, comprising a pressure gauge body (1), characterized in that: The front end of the pressure gauge body (1) is provided with a dial (7), the bottom end of the pressure gauge body (1) is provided with a detection tube (3), the bottom end of the detection tube (3) is provided with a mounting tube (5), the bottom end of the outside of the detection tube (3) is provided with a gasket (12), the bottom end of the gasket (12) is provided with a sealing gasket (10), the front end of the outer side of the pressure gauge body (1) is provided with a connecting frame (2), the front end of the inner side of the connecting frame (2) is provided with a mounting frame (8), the front end of the mounting frame (8) is provided with a first limiting plate (6), the front end between the inner sides of the mounting frame (8) is provided with a tempered glass protective plate (9), and the outer side of the gasket (12) is provided with a positioning component.

2. A pressure detection device for a flame arrester according to claim 1, characterized in that: The connection frame (2), the installation frame (8) and the first limiting plate (6) are annular in shape, and the tempered glass protection plate (9) is circular in shape.

3. A pressure detection device for a flame arrester according to claim 1, characterized in that: The inner side of the connection frame (2) is provided with an internal thread, and the outer side of the installation frame (8) is provided with an external thread matching the internal thread.

4. A pressure detection device for a flame arrester according to claim 1, characterized in that: The installation tube (5) is connected to the detection tube (3), and the outer side of the installation tube (5) is provided with an external thread.

5. A pressure detection device for a flame arrester according to claim 1, characterized in that: The positioning assembly comprises a positioning sleeve (4), wherein the positioning sleeve (4) is arranged on the outer side of a gasket (12), a slider (13) is arranged on the inner side of the positioning sleeve (4), a second limiting sheet (14) is arranged between the top of the slider (13) and the top end of the inner side of the positioning sleeve (4), and a limiting slot (11) is arranged on the outer side of the gasket (12).

6. A pressure detection device for a flame arrester according to claim 5, characterized in that: The limiting slot (11) and the sliding block (13) are provided in two groups. The limiting slot (11) is symmetrically arranged on the outer side of the gasket (12), and the sliding block (13) is symmetrically arranged on the inner side of the positioning sleeve (4). The sliding block (13) is clamped inside the limiting slot (11), and the sliding block (13) can be lifted and slid inside the limiting slot (11).

Images