A SF6 gas cylinder residual gas detection device

Abstract

A device for detecting residual gas in an SF6 gas cylinder comprises a barometer, and an auxiliary marking device is installed on the handle of the barometer. The auxiliary marking device comprises a fixing seat, and the fixing seat cooperates with the barometer. The present invention adds an auxiliary marking device on the handle of the barometer. The auxiliary marking device can facilitate workers to stick tape on the gas cylinder with low pressure and cut the tape when workers detect the gas cylinder with low pressure. On the one hand, it is convenient to mark the gas cylinder quickly to avoid workers making mistakes. On the other hand, the tape can be cut for convenient and quick marking.

Description

Technical Field

[0001] The present invention relates to a detection device, more specifically to a residual gas detection device for SF6 gas cylinders. Background Art

[0002] The present invention provides a SF6 gas cylinder residual gas detection device. SF6 gas cylinder is one of the important spare parts of the substation. When the SF6 pressure in the combined electrical appliance decreases, the maintenance personnel need to connect the SF6 gas cylinder to the combined electrical appliance charging valve for gas replenishment. We found in the application that when the gas cylinder with low gas pressure is detected, the workers can only record the gas cylinder with low gas pressure by memory, which is easy to make mistakes and often needs to be re-tested, which is troublesome. Summary of the invention

[0003] The purpose of the present invention is to provide a SF6 gas cylinder residual gas detection device, which can add an auxiliary marking device on the handle of a barometer. The auxiliary marking device can facilitate workers to stick tape on the gas cylinder with low pressure and cut the tape when they detect the gas cylinder with low pressure. On the one hand, it is convenient to mark the gas cylinder quickly to avoid workers making mistakes. On the other hand, the tape can be cut for convenient and quick marking.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A residual gas detection device for SF6 gas cylinders comprises a barometer, and a handle-mounted auxiliary marking device for the barometer, wherein the auxiliary marking device comprises a fixing seat, the fixing seat cooperates with the barometer, a tape fixing and releasing device and an auxiliary cutting device are installed on one side of the fixing seat, the tape fixing and releasing device comprises a tape roll, and a tape is wound on the tape roll, and the auxiliary cutting device comprises a fixing frame, one side of the fixing frame is connected to a sleeve, a push rod is inserted into the sleeve, the upper end sleeve of the push rod slides inside, one end of the push rod is connected to a cutting knife, one side of the fixing frame is connected to a probe rod, one end of the probe rod is installed with a first roller and a swing arm, the first roller is connected to the probe rod through a rotating shaft, the first roller can rotate on the probe rod, one side of the probe rod is hinged to the swing arm, a tension spring is installed between the middle part of the swing arm and the middle part of the probe rod, two ends of the tension spring are respectively matched with the probe rod and the swing arm, the tension spring is in a stretched state, one side of the swing arm is connected to a second roller through a rotating shaft, the second roller can rotate on the swing arm, and the first roller and the second roller can cooperate to clamp the tape.

[0006] In order to further achieve the purpose of the present invention, the following technical scheme can also be adopted: the bottom of the handle of the barometer is connected to several locked spherical ends of the self-locking rebounder, and the upper part of the fixed seat is connected to several locking ends of the self-locking rebounder, and the locking ends of the self-locking rebounder can cooperate with the locked spherical ends of the self-locking rebounder.

[0007] A screw hole is provided on the side of the sleeve, and the sleeve is threadedly connected to a bolt through the screw hole. The bolt can lock the sleeve and the push rod. A first spring is sleeved on the push rod, one end of the first spring is connected to the push rod, and the other end of the first spring is connected to the sleeve. The first spring is in a compressed state. Two protective plates are connected to one side of the fixing frame, and the planes where the two protective plates are located are in a parallel state. The cutting knife can be inserted between the two protective plates.

[0008] The tape fixing and releasing device includes a support column, one end of the support column is connected to the fixed seat, and a bearing is installed on the other end of the support column, the inner ring of the bearing is connected to the support column, and a sliding rod is connected on both sides of the outer ring of the bearing, one end of the sliding rod is inserted into the sliding tube, the sliding tube can slide on the sliding rod, the side of the sliding tube is connected to the finger pressure plate, one end of the sliding tube is connected to a sawtooth block and two limit plates, the sawtooth of the sawtooth block can cooperate with the inner side of the tape roll, and the two limit plates can cooperate to clamp the two sides of the tape roll, and a second spring is sleeved on the sliding rod, one end of the second spring is connected to the sliding rod, and the other end of the second spring is connected to the sliding tube, and the second spring is in a compressed state.

[0009] The side of the protruding rod is connected to a limit block, and the limit block can cooperate with the second spring of the swing arm.

[0010] The advantages of the present invention are that an auxiliary marking device is added to the handle of the barometer. When a worker detects a gas cylinder with low pressure, the auxiliary marking device can conveniently stick tape on the gas cylinder with low pressure and cut the tape. On the one hand, it is convenient and quick to mark the gas cylinder to avoid workers making mistakes. On the other hand, the tape can be cut for convenient and quick marking. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is one of the structural schematic diagrams of the present invention;

[0013] Figure 2 This is the second structural schematic diagram of the present invention;

[0014] Figure 3 This is the third structural schematic diagram of the present invention;

[0015] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of Part I;

[0016] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of Part II;

[0017] Figure 6 for Figure 1 Schematic diagram of the enlarged structure of Part III. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings.

[0019] Embodiment 1:

[0020] A SF6 gas cylinder residual gas detection device, such as Figure 1-Figure 6 As shown, it includes a barometer 1, and an auxiliary marking device is installed on the handle of the barometer 1. The auxiliary marking device includes a fixing seat 2, and the fixing seat 2 cooperates with the barometer 1. A tape fixing and releasing device and an auxiliary cutting device are installed on one side of the fixing seat 2. The tape fixing and releasing device includes a tape roll 7, and a tape is wound on the tape roll 7. The auxiliary cutting device includes a fixing frame 4, one side of the fixing frame 4 is connected to a sleeve 6, and a push rod 18 is inserted into the inside of the sleeve 6. The upper end of the push rod 18 slides inside the sleeve 6, and one end of the push rod 18 is connected to a cutting knife 20. One side of the fixing frame 4 is connected to a protruding rod 21. A first roller 22 and a swing arm 23 are installed at one end of the protruding rod 21. The first roller 22 is connected to the protruding rod 21 through a rotating shaft. The first roller 22 can rotate on the protruding rod 21. The swing arm 23 is hinged on one side of the protruding rod 21. A tension spring 25 is installed between the middle part of the swing arm 23 and the middle part of the protruding rod 21. The two ends of the tension spring 25 are respectively matched with the protruding rod 21 and the swing arm 23. The tension spring 25 is in a stretched state. One side of the swing arm 23 is connected to the second roller 26 through a rotating shaft. The second roller 26 can rotate on the swing arm 23. The first roller 22 and the second roller 26 can cooperate to clamp the tape.

[0021] The present invention adds an auxiliary marking device on the handle of the barometer 1. The auxiliary marking device can facilitate the worker to stick tape on the gas cylinder with low pressure and cut the tape when the worker detects the gas cylinder with low pressure. On the one hand, it is convenient to mark the gas cylinder quickly to avoid the worker's mistake. On the other hand, the tape can be cut for convenient and quick marking.

[0022] Scope of application Material selection and feasibility analysis for specific implementation: The samples we actually made use the drawings in the specification as drawings, and are implemented according to the proportions and matching methods of the various components in the drawings. The connections described are commonly used connection methods such as strong adhesive connections, welding, riveting, flange connections, and one-piece molding connections. In actual production, the thickness and strength of the connection points can be creatively selected according to the actual connection strength requirements. The pressure gauge 1 can be a tire pressure gauge, and the handle of the tire pressure gauge is connected to the fixing seat 2. After the tape roll 7 is installed, the user can pull the tape on the tape roll 7 so that one end of the tape is located between the first roller 22 and the second roller 26. At this time, the end of the tape is out Figure 4In the state, the end of the tape protrudes outward, which is convenient for pasting. When marking, the worker can manually let the end of the tape stick to the gas cylinder. At this time, the tension spring 25 is stretched to reach Figure 3 state, and then push the push rod 18 to allow the cutting knife 20 to cut the tape. After the tape is cut, the end of the tape is no longer pulled, and the tension spring 25 contracts and returns to the Figure 4 The tape roll 7 can be made of colored tape to improve the prompting effect.

[0023] Embodiment 2:

[0024] A SF6 gas cylinder residual gas detection device, such as Figure 1-Figure 6 As shown, it includes a barometer 1, and an auxiliary marking device is installed on the handle of the barometer 1. The auxiliary marking device includes a fixing seat 2, and the fixing seat 2 cooperates with the barometer 1. A tape fixing and releasing device and an auxiliary cutting device are installed on one side of the fixing seat 2. The tape fixing and releasing device includes a tape roll 7, and a tape is wound on the tape roll 7. The auxiliary cutting device includes a fixing frame 4, one side of the fixing frame 4 is connected to a sleeve 6, and a push rod 18 is inserted into the inside of the sleeve 6. The upper end of the push rod 18 slides inside the sleeve 6, and one end of the push rod 18 is connected to a cutting knife 20. One side of the fixing frame 4 is connected to a protruding rod 21. A first roller 22 and a swing arm 23 are installed at one end of the protruding rod 21. The first roller 22 is connected to the protruding rod 21 through a rotating shaft. The first roller 22 can rotate on the protruding rod 21. The swing arm 23 is hinged on one side of the protruding rod 21. A tension spring 25 is installed between the middle part of the swing arm 23 and the middle part of the protruding rod 21. The two ends of the tension spring 25 are respectively matched with the protruding rod 21 and the swing arm 23. The tension spring 25 is in a stretched state. One side of the swing arm 23 is connected to a second roller 26 through a rotating shaft. The second roller 26 can rotate on the swing arm 23. The first roller 22 and the second roller 26 can cooperate to clamp the tape. The bottom of the handle of the barometer 1 is connected to a plurality of self-locking rebounder locked spherical ends 15, and the upper part of the fixed seat 2 is connected to a plurality of self-locking rebounder locking ends 16, and the self-locking rebounder locking ends 16 can cooperate with the self-locking rebounder locked spherical ends 15.

[0025] The locking end 16 of the self-locking rebounder of the present invention can cooperate with the locked spherical end 15 of the self-locking rebounder, thereby facilitating the detachable connection between the barometer 1 and the fixing seat 2.

[0026] Embodiment 3:

[0027] A SF6 gas cylinder residual gas detection device, such as Figure 1-Figure 6As shown, it includes a barometer 1, and an auxiliary marking device is installed on the handle of the barometer 1. The auxiliary marking device includes a fixing seat 2, and the fixing seat 2 cooperates with the barometer 1. A tape fixing and releasing device and an auxiliary cutting device are installed on one side of the fixing seat 2. The tape fixing and releasing device includes a tape roll 7, and a tape is wound on the tape roll 7. The auxiliary cutting device includes a fixing frame 4, one side of the fixing frame 4 is connected to a sleeve 6, and a push rod 18 is inserted into the inside of the sleeve 6. The upper end of the push rod 18 slides inside the sleeve 6, and one end of the push rod 18 is connected to a cutting knife 20. One side of the fixing frame 4 is connected to a protruding rod 21. A first roller 22 and a swing arm 23 are installed at one end of the protruding rod 21. The first roller 22 is connected to the protruding rod 21 through a rotating shaft. The first roller 22 can rotate on the protruding rod 21. The swing arm 23 is hinged on one side of the protruding rod 21. A tension spring 25 is installed between the middle part of the swing arm 23 and the middle part of the protruding rod 21. The two ends of the tension spring 25 are respectively matched with the protruding rod 21 and the swing arm 23. The tension spring 25 is in a stretched state. One side of the swing arm 23 is connected to the second roller 26 through a rotating shaft. The second roller 26 can rotate on the swing arm 23. The first roller 22 and the second roller 26 can cooperate to clamp the tape. A screw hole is provided on the side of the sleeve 6, and the sleeve 6 is threadedly connected to the bolt 3 through the screw hole. The bolt 3 can lock the sleeve 6 and the push rod 18. The push rod 18 is sleeved with a first spring 5, one end of the first spring 5 is connected to the push rod 18, and the other end of the first spring 5 is connected to the sleeve 6. The first spring 5 is in a compressed state. Two protective plates 19 are connected to one side of the fixing frame 4. The planes where the two protective plates 19 are located are in a parallel state, and the cutting knife 20 can be inserted between the two protective plates 19.

[0028] When the tape needs to be cut, the bolt 3 can be unlocked and one end of the push rod 18 can be manually pushed to allow the cutting knife 20 to protrude from between the two protective plates 19 to facilitate cutting. When the cutting is completed, the first spring 5 can drive the cutting knife 20 to rebound between the two protective plates 19 to prevent the cutting knife 20 from injuring the user. The user can further use the bolt 3 to lock the tube 6 and the push rod 18 to prevent the cutting knife 20 from automatically sliding out from between the two protective plates 19.

[0029] Embodiment 4:

[0030] A SF6 gas cylinder residual gas detection device, such as Figure 1-Figure 6As shown, it includes a barometer 1, and an auxiliary marking device is installed on the handle of the barometer 1. The auxiliary marking device includes a fixing seat 2, and the fixing seat 2 cooperates with the barometer 1. A tape fixing and releasing device and an auxiliary cutting device are installed on one side of the fixing seat 2. The tape fixing and releasing device includes a tape roll 7, and a tape is wound on the tape roll 7. The auxiliary cutting device includes a fixing frame 4, one side of the fixing frame 4 is connected to a sleeve 6, and a push rod 18 is inserted into the inside of the sleeve 6. The upper end of the push rod 18 slides inside the sleeve 6, and one end of the push rod 18 is connected to a cutting knife 20. One side of the fixing frame 4 is connected to a protruding rod 21. A first roller 22 and a swing arm 23 are installed at one end of the protruding rod 21. The first roller 22 is connected to the protruding rod 21 through a rotating shaft. The first roller 22 can rotate on the protruding rod 21. The swing arm 23 is hinged on one side of the protruding rod 21. A tension spring 25 is installed between the middle part of the swing arm 23 and the middle part of the protruding rod 21. The two ends of the tension spring 25 are respectively matched with the protruding rod 21 and the swing arm 23. The tension spring 25 is in a stretched state. One side of the swing arm 23 is connected to the second roller 26 through a rotating shaft. The second roller 26 can rotate on the swing arm 23. The first roller 22 and the second roller 26 can cooperate to clamp the tape. The tape fixing and releasing device includes a support column 14, one end of which is connected to the fixing seat 2, and a bearing 13 is installed on the other end of the support column 14. The inner ring of the bearing 13 is connected to the support column 14, and a sliding rod 12 is connected to both sides of the outer ring of the bearing 13. One end of the sliding rod 12 is inserted into the sliding tube 9, and the sliding tube 9 can slide on the sliding rod 12. The side of the sliding tube 9 is connected to the finger pressure plate 10, and one end of the sliding tube 9 is connected to the sawtooth block 8 and two limit plates 17. The sawtooth of the sawtooth block 8 can cooperate with the inner side of the tape roll 7, and the two limit plates 17 can cooperate to clamp the two sides of the tape roll 7. A second spring 11 is sleeved on the sliding rod 12, and one end of the second spring 11 is connected to the sliding rod 12, and the other end of the second spring 11 is connected to the sliding tube 9, and the second spring 11 is in a compressed state.

[0031] The tape fixing and releasing device of the present invention can be used to fix the tape roll 7 when the user needs to fix the tape roll 7. The user can use the thumb and index finger to press the two finger pressure plates 10, so that the two sawtooth blocks 8 are close to each other and the distance between the two sawtooth blocks 8 is shortened. Then the inner ring of the tape roll 7 is put on the two sawtooth blocks 8, and then the finger pressure plates 10 are released. At this time, the second spring 11 drives the sawtooth blocks 8 to rebound, so that the saw teeth of the two sawtooth blocks 8 use the elastic force of the second spring 11 to cooperate with the inner wall of the inner ring of the tape roll 7, so that the tape roll 7 is fixed on the tape fixing and releasing device. Since the inner fixing ring of the tape roll 7 adopts a hard paper ring structure, the saw teeth of the sawtooth block 8 can be inserted into a part of the inner ring of the tape roll 7, so as to prevent the sawtooth block 8 from being disengaged from the tape roll 7. The two limit plates 17 can clamp the two sides of the tape roll 7, so as to further prevent the tape roll 7 from being disengaged.

[0032] Embodiment 5:

[0033] A SF6 gas cylinder residual gas detection device, such as Figure 1-Figure 6 As shown, it includes a barometer 1, and an auxiliary marking device is installed on the handle of the barometer 1. The auxiliary marking device includes a fixing seat 2, and the fixing seat 2 cooperates with the barometer 1. A tape fixing and releasing device and an auxiliary cutting device are installed on one side of the fixing seat 2. The tape fixing and releasing device includes a tape roll 7, and a tape is wound on the tape roll 7. The auxiliary cutting device includes a fixing frame 4, one side of the fixing frame 4 is connected to a sleeve 6, and a push rod 18 is inserted into the inside of the sleeve 6. The upper end of the push rod 18 slides inside the sleeve 6, and one end of the push rod 18 is connected to a cutting knife 20. One side of the fixing frame 4 is connected to a protruding rod 21. A first roller 22 and a swing arm 23 are installed at one end of the protruding rod 21. The first roller 22 is connected to the protruding rod 21 through a rotating shaft. The first roller 22 can rotate on the protruding rod 21. The swing arm 23 is hinged on one side of the protruding rod 21. A tension spring 25 is installed between the middle of the swing arm 23 and the middle of the protruding rod 21. The two ends of the tension spring 25 are respectively matched with the protruding rod 21 and the swing arm 23. The tension spring 25 is in a stretched state. One side of the swing arm 23 is connected to a second roller 26 through a rotating shaft. The second roller 26 can rotate on the swing arm 23. The first roller 22 and the second roller 26 can cooperate to clamp the tape. The side of the protruding rod 21 is connected to a limit block 24, and the limit block 24 can cooperate with the second spring 11 of the swing arm 23.

[0034] The limit block 24 of the present invention can be connected with the protruding block 32 on one side of the swing arm 23 after the cutting knife 20 cuts the tape and the tension spring 25 drives the swing arm 23 to rotate counterclockwise, thereby preventing the swing arm 23 from excessively rotating and keeping the end of the tape protruding.

[0035] The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention.

Claims

1. A SF6 gas cylinder residual gas detection device, characterized in that: The invention comprises a barometer (1), and a handle-mounted auxiliary marking device of the barometer (1), wherein the auxiliary marking device comprises a fixing seat (2), the fixing seat (2) cooperates with the barometer (1), a tape fixing and releasing device and an auxiliary cutting device are mounted on one side of the fixing seat (2), the tape fixing and releasing device comprises a tape roll (7), and a tape is wound on the tape roll (7), and the auxiliary cutting device comprises a fixing frame (4), one side of the fixing frame (4) is connected to a sleeve (6), a push rod (18) is inserted into the sleeve (6), the upper end of the push rod (18) slides inside the sleeve (6), one end of the push rod (18) is connected to a cutting knife (20), one side of the fixing frame (4) is connected to a protruding rod (21), one end of the protruding rod (21) is mounted with a first roller (22) and a swing arm (23), the first roller (22) is connected to the protruding rod (21) via a rotating shaft, the first roller (22) can rotate on the protruding rod (21), and the protruding rod ( A swing arm (23) is hingedly connected to one side of the swing arm (21), a tension spring (25) is installed between the middle of the swing arm (23) and the middle of the extension rod (21), two ends of the tension spring (25) are respectively matched with the extension rod (21) and the swing arm (23), the tension spring (25) is in a stretched state, one side of the swing arm (23) is connected to the second roller (26) through a rotating shaft, the second roller (26) can rotate on the swing arm (23), the first roller (22) and the second roller (26) The bottom of the handle of the barometer (1) is connected to a plurality of locked spherical ends (15) of the self-locking rebounder, and the upper part of the fixing seat (2) is connected to a plurality of locking ends (16) of the self-locking rebounder. The locking ends (16) of the self-locking rebounder can cooperate with the locked spherical ends (15) of the self-locking rebounder. The side of the protruding rod (21) is connected to a limit block (24), and the limit block (24) can cooperate with the second spring (11) of the swing arm (23); The sleeve (6) has a screw hole on its side, and the sleeve (6) is threadedly connected to the bolt (3) through the screw hole. The bolt (3) can lock the sleeve (6) and the push rod (18). The push rod (18) is sleeved with a first spring (5). One end of the first spring (5) is connected to the push rod (18), and the other end of the first spring (5) is connected to the sleeve (6). The first spring (5) is in a compressed state. One side of the fixing frame (4) is connected to two protective plates (19). The planes where the two protective plates (19) are located are in a parallel state. The cutting knife (20) can be inserted between the two protective plates (19). The adhesive tape fixing and releasing device comprises a support column (14), one end of the support column (14) is connected to the fixing seat (2), the other end of the support column (14) is installed with a bearing (13), the inner ring of the bearing (13) is connected to the support column (14), both sides of the outer ring of the bearing (13) are connected with a sliding rod (12), one end of the sliding rod (12) is plugged into the sliding tube (9), the sliding tube (9) can slide on the sliding rod (12), and the side of the sliding tube (9) is connected to the finger pressure plate ( 10), one end of the sliding tube (9) is connected to the sawtooth block (8) and the two limit plates (17), the saw teeth of the sawtooth block (8) can cooperate with the inner side of the tape roll (7), the two limit plates (17) can cooperate to clamp the two sides of the tape roll (7), the sliding rod (12) is sleeved with a second spring (11), one end of the second spring (11) is connected to the sliding rod (12), the other end of the second spring (11) is connected to the sliding tube (9), and the second spring (11) is in a compressed state.

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