An instrument fracturing detection device

Abstract

The present invention discloses an instrument fracturing detection device, and relates to the field of instrument fracturing detection. An instrument fracturing detection device comprises a protective tube and a sealing cover detachably connected to the protective tube; a boosting pipe 1, fixedly connected to the protective tube, wherein a one-way valve is provided on the boosting pipe 1, and a connecting pipe, fixedly connected to the protective tube; a pressure gauge body, threadedly connected to one end of the connecting pipe located inside the protective tube; a sleeve, fixedly connected to one end of the connecting pipe located outside the protective tube; the present invention performs fracturing detection on the dial of the pressure gauge body through multiple pressure application methods such as external and internal, thereby improving the detection accuracy, so that during the detection process, it is possible to accurately know whether the pressure resistance of the pressure gauge body dial and the sealing of the dial and the shell meet the standards, and by performing fracturing detection on the pressure gauge body in a sealed environment, the safety during detection is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of instrument fracturing detection, and in particular, relates to an instrument fracturing detection device. Background Art

[0002] Instruments are devices used to measure, observe and calculate various physical quantities and physical parameters. Vacuum leak detectors, pressure gauges, length measuring instruments, etc. are all instruments.

[0003] At present, after the pressure gauge is produced, it is necessary to determine whether the pressure resistance of the pressure gauge dial meets the standard through a fracturing test. However, when the pressure gauge dial is tested for pressure resistance by the existing fracturing detection device, the pressure resistance is tested only by applying downward pressure, so that this detection method is relatively simple and the detection accuracy is not high. During the detection process, it is impossible to accurately know whether the pressure resistance of the pressure gauge dial meets the standard and whether the sealing of the pressure gauge dial and the housing meets the standard. In view of this, the present invention is specially proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an instrument fracturing detection device that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A fracturing detection device for an instrument comprises a protective tube and a sealing cover which is detachably connected to the protective tube; a boosting pipe 1 which is fixedly connected to the protective tube, wherein the boosting pipe 1 is provided with a one-way valve, and a connecting pipe which is fixedly connected to the protective tube; a pressure gauge body which is threadedly connected to one end of the connecting pipe located inside the protective tube; a sleeve which is fixedly connected to one end of the connecting pipe located outside the protective tube, wherein the sleeve is connected to the connecting pipe, a sealing plug is slidably connected inside the sleeve, and the sleeve is transparent; an elastic reset member is arranged in the sleeve and is located between the sealing plug and the inner wall of the sleeve; during detection, the pressure gauge body to be detected is installed on the connecting pipe, and then the sealing cover is installed on the protective tube, thereby closing the protective tube, and after the preparation work is completed, an external boosting pump is connected to the boosting pipe 1, and then the protective tube is inflated and pressurized through the boosting pipe 1, so that the pressure gauge body is pressurized, and then the fracturing condition of the pressure gauge body dial can be known by observing whether the sealing plug is displaced in the sleeve.

[0007] Preferably, the elastic return member comprises a tension spring, one end of which is fixedly connected to the sealing plug, and the other end of which is fixedly connected to the inner wall of the sleeve.

[0008] In order to inflate and increase the pressure in the sleeve, preferably, a second pressure-boosting pipe is fixedly connected to the sleeve, and a one-way valve is arranged on the second pressure-boosting pipe.

[0009] In order to obtain the pressure value of the boosted pressure in the sleeve, a second pressure sensor is further included, and the second pressure sensor is fixedly installed on the inner wall of one end of the sleeve away from the connecting pipe.

[0010] Preferably, the protective cylinder is fixedly connected to a drain pipe, and the drain pipe is provided with a solenoid valve.

[0011] In order to perform fracturing detection on the pressure gauge body, preferably, a sliding sleeve is connected to the protective tube for lifting, a slider is connected to the sliding sleeve for sliding, a pressure cone is detachably connected to the slider, a pressure sensor 1 is fixedly installed on the inner wall of the sliding sleeve, a cylinder 2 is fixedly installed on the sealing cover, the sliding sleeve is fixedly connected to the output end of the cylinder 2, and the pressure cone is located directly above the pressure gauge body.

[0012] In order to facilitate the disassembly or installation of the pressure cone, it further includes a connecting shaft fixedly connected to the slider, and the pressure cone is detachably connected to the end of the connecting shaft away from the slider by means of a threaded connection.

[0013] In order to support the pressure gauge body, further, a cylinder 1 is fixedly installed on the inner wall of the bottom of the protective tube, and a carrying plate is fixedly connected to the output end of the cylinder 1, and the carrying plate is in contact with the pressure gauge body.

[0014] In order to facilitate the disassembly or installation of the sealing cover, preferably, the sealing cover is detachably connected to the protective tube via a plurality of fixing bolts.

[0015] In order to increase the sealing performance of the connection between the sealing cover and the protective tube, further, a support ring is fixedly connected to the sealing cover, a sealing ring is provided on the support ring, the sealing ring fits against the inner wall of the protective tube, a sealing gasket is provided on the protective tube, and the sealing gasket fits against the sealing cover.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0017] The present invention performs fracturing detection on the dial of the pressure gauge body through various pressure application methods such as external and internal pressure application, thereby improving the detection accuracy, so that during the detection process, it is possible to accurately know whether the pressure resistance of the dial of the pressure gauge body and the sealing of the dial and the shell meet the standards, and by performing fracturing detection on the pressure gauge body in a sealed environment, the safety during detection is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of the present invention;

[0019] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0020] Figure 3 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0021] Figure 4 The present invention Figure 1 A magnified view of part A;

[0022] Figure 5 It is a schematic diagram of the partial structure of the present invention;

[0023] Figure 6 It is a cross-sectional view of the sleeve and the connecting pipe of the present invention.

[0024] In the figure: 1. protective cylinder; 101. sealing cover; 102. fixing bolt; 2. support ring; 201. sealing ring; 202. sealing gasket; 3. cylinder one; 301. bearing plate; 4. pressure gauge body; 5. cylinder two; 501. sliding sleeve; 502. slider; 503. connecting shaft; 504. pressure cone; 505. pressure sensor one; 6. boost pipe one; 601. sleeve; 602. sealing plug; 603. connecting pipe; 7. boost pipe two; 701. pressure sensor two; 8. tension spring; 9. drain pipe; 901. solenoid valve. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0026] Example 1: Reference Figure 1 , Figure 2 , Figure 6A fracturing detection device for an instrument includes a protective tube 1 and a sealing cover 101 detachably connected to the protective tube 1; a boosting pipe 6, which is fixedly connected to the protective tube 1, wherein a one-way valve is provided on the boosting pipe 6, and a connecting pipe 603, which is fixedly connected to the protective tube 1; a pressure gauge body 4, which is threadedly connected to one end of the connecting pipe 603 located inside the protective tube 1; a sleeve 601, which is fixedly connected to one end of the connecting pipe 603 located outside the protective tube 1, wherein the sleeve 601 is connected to the connecting pipe 603, a sealing plug 602 is slidably connected inside the sleeve 601, and the sleeve 601 is transparent Setting; an elastic reset part is set in the sleeve 601 and is located between the sealing plug 602 and the inner wall of the sleeve 601; during detection, the pressure gauge body 4 to be detected is installed on the connecting pipe 603, and then the sealing cover 101 is installed on the protective tube 1, and then the protective tube 1 is closed. After the preparation work is completed, the external booster pump is connected to the booster pipe 6, and then the protective tube 1 is inflated and pressurized through the booster pipe 6 to apply pressure to the pressure gauge body 4, and then by observing whether the sealing plug 602 is displaced in the sleeve 601, the fracturing condition of the dial of the pressure gauge body 4 can be known.

[0027] The elastic reset member includes a tension spring 8 , one end of which is fixedly connected to the sealing plug 602 , and the other end of which is fixedly connected to the inner wall of the sleeve 601 .

[0028] During the inspection, the pressure gauge body 4 to be inspected is installed on the connecting pipe 603, and then the sealing cover 101 is installed on the protective tube 1, and then the protective tube 1 is closed, so that the pressure gauge body 4 can be subjected to a fracturing inspection in a sealed environment, thereby improving the safety during the inspection. After the preparation work is completed, the external booster pump is connected to the booster pipe 6, and then the booster pump is started. The booster pump inflates and pressurizes the protective tube 1 through the booster pipe 6, so that the gas pressurized into the protective tube 1 applies pressure to the dial of the pressure gauge body 4, thereby achieving a fracturing inspection of the dial of the pressure gauge body 4. At this time, by observing whether the sealing plug 602 is displaced in the sleeve 601, it is possible to know whether the pressure resistance of the dial of the pressure gauge body 4 and the sealing of the dial and the shell of the pressure gauge body 4 meet the standards;

[0029] If the pressure resistance of the dial of the pressure gauge body 4 and the sealing performance of the dial and the shell of the pressure gauge body 4 do not meet the standards, causing the gas pressurized into the protective tube 1 to leak, the gas will be filled into the sleeve 601 through the connecting pipe 603, thereby pushing the sealing plug 602 to slide to the side away from the connecting pipe 603 and stretching the tension spring 8;

[0030] If the pressure resistance of the dial of the pressure gauge body 4 and the sealing performance between the dial and the shell of the pressure gauge body 4 meet the standards, the gas pressurized into the protective tube 1 will not leak, and the sealing plug 602 will not be displaced in the sleeve 601.

[0031] Example 2: Reference Figure 1 , Figure 3 , Figure 6 , an instrument fracturing detection device, which is basically the same as Example 1, and further, a boosting pipe 2 7 is fixedly connected to the sleeve 601, and a one-way valve is provided on the boosting pipe 2 7.

[0032] It also includes a second pressure sensor 701 , which is fixedly mounted on the inner wall of one end of the sleeve 601 away from the connecting pipe 603 .

[0033] During the inspection, the pressure gauge body 4 to be inspected is installed on the connecting pipe 603, and then a proper amount of water is injected into the protective tube 1 to submerge the pressure gauge body 4. After the preparation work is completed, the external booster pump is connected to the booster pipe 2 7, and then the booster pump is started. The booster pump inflates and pressurizes the sleeve 601 through the booster pipe 2 7, so that the gas enters the pressure gauge body 4 through the connecting pipe 603, and the dial of the pressure gauge body 4 is pressurized from the inside to the outside, so as to achieve fracturing detection of the dial of the pressure gauge body 4;

[0034] At the same time, the gas pressurized into the sleeve 601 pushes the sealing plug 602 to slide toward the side close to the second pressure sensor 701 and stretches the tension spring 8. When the sealing plug 602 and the second pressure sensor 701 are against each other, the pressure value applied by the pressure cone 504 to the dial of the pressure gauge body 4 can be measured through the pressure sensor 1 505. Then, the measured pressure information is sent to the central receiving module by a wireless transmitter, and the pressure data is displayed. When the pressure reaches the preset pressure value, the system will automatically alarm and then turn off the booster pump. At this time, by observing whether there are a large number of bubbles generated by the leakage of the pressure gauge body 4 on the water surface in the protective tube 1, it can be known whether the pressure resistance of the dial of the pressure gauge body 4 and the sealing of the dial and the shell of the pressure gauge body 4 meet the standards. If a large number of bubbles are generated on the water surface, it means that the pressure resistance of the dial of the pressure gauge body 4 or the sealing of the dial and the shell of the pressure gauge body 4 do not meet the standards. If no bubbles are generated on the water surface, it means that the pressure resistance of the dial of the pressure gauge body 4 or the sealing of the dial and the shell of the pressure gauge body 4 meet the standards.

[0035] If the pressure resistance of the dial of the pressure gauge body 4 or the sealing between the dial and the shell of the pressure gauge body 4 does not meet the standards, causing the pressurized gas inside the sleeve 601 to leak, the stretched tension spring 8 slowly resets due to its own elastic potential energy, and pulls the sealing plug 602 to move to the side away from the pressure sensor 2 701 to reset. When the pressure value applied by the sealing plug 602 to the pressure sensor 2 701 is less than the preset pressure value, the system will stop the alarm, so as to better know whether the pressure resistance of the dial of the pressure gauge body 4 and the sealing between the dial and the shell of the pressure gauge body 4 meet the standards.

[0036] Example 3: Reference Figure 1 , Figure 2 , an instrument fracturing detection device, which is basically the same as the embodiment 1, and further, the protective tube 1 is fixedly connected with a drainage pipe 9, and the drainage pipe 9 is provided with a solenoid valve 901;

[0037] Based on Example 2, through the setting of the drain pipe 9 and the solenoid valve 901, after completing the fracturing detection of the pressure gauge body 4, by opening the solenoid valve 901 on the drain pipe 9, water can be discharged from the protective tube 1 through the drain pipe 9. After the water is completely discharged from the protective tube 1, first remove the sealing cover 101 installed on the protective tube 1 to open the protective tube 1. Then the staff can remove the pressure gauge body 4 from the connecting pipe 603, and then take the pressure gauge body 4 out of the protective tube 1.

[0038] Example 4: Reference Figure 1 , Figure 4 , Figure 5 , an instrument fracturing detection device, which is basically the same as Example 1, and further, a sliding sleeve 501 is connected to the protective tube 1 for lifting, a slider 502 is slidably connected to the sliding sleeve 501, a pressure cone 504 is detachably connected to the slider 502, a pressure sensor 1 505 is fixedly installed on the inner wall of the sliding sleeve 501, a cylinder 2 5 is fixedly installed on the sealing cover 101, the sliding sleeve 501 is fixedly connected to the output end of the cylinder 2 5, and the pressure cone 504 is located directly above the pressure gauge body 4.

[0039] It also includes a connecting shaft 503 fixedly connected to the slider 502, and a pressure cone 504 is detachably connected to an end of the connecting shaft 503 away from the slider 502 by means of a threaded connection.

[0040] A cylinder 3 is fixedly installed on the inner wall of the bottom of the protective tube 1 , and a carrying plate 301 is fixedly connected to the output end of the cylinder 3 , and the carrying plate 301 is in contact with the pressure gauge body 4 .

[0041] Based on Example 1, when the dial of the pressure gauge body 4 is subjected to fracturing detection, the cylinder 2 5 is started, and the cylinder 2 5 pushes the sliding sleeve 501 to drive the pressure cone 504 to move downward. When the pressure cone 504 contacts the dial of the pressure gauge body 4, the pressure cone 504 continues to move downward. At this time, the pressure cone 504 pushes the slider 502 to slide upward through the connecting shaft 503. When the slider 502 abuts against the pressure sensor 1 505, the pressure value applied by the pressure cone 504 to the dial of the pressure gauge body 4 can be measured through the pressure sensor 1 505. Then, the measured pressure information is sent to the central receiving module by a wireless transmitter, and the pressure data is displayed. When the pressure reaches the preset pressure value, the system will automatically alarm, thereby achieving fracturing detection of the dial of the pressure gauge body 4 under high pressure. Then, by observing whether the sealing plug 602 is displaced in the sleeve 601, it is possible to know whether the pressure resistance of the dial of the pressure gauge body 4 under high pressure and whether the sealing of the dial and the shell of the pressure gauge body 4 meet the standards.

[0042] At the same time, start cylinder 13, which pushes the supporting plate 301 upward until the supporting plate 301 contacts the pressure gauge body 4, thereby providing auxiliary support for the pressure gauge body 4 to prevent the pressure cone 504 from applying pressure to the dial of the pressure gauge body 4, causing bending damage at the connection between the pressure gauge body 4 and the connecting pipe 603.

[0043] It should be noted that, since the pressure cone 504 is detachably connected to the connecting shaft 503 by means of a threaded connection, the pressure cone 504 can be disassembled and replaced according to the size of the pressure gauge body 4.

[0044] Example 5: Reference Figure 1 , an instrument fracturing detection device, which is basically the same as the embodiment 1, and further, the sealing cover 101 is detachably connected to the protective tube 1 by a plurality of fixing bolts 102;

[0045] The arrangement of the plurality of fixing bolts 102 makes it easy to install the sealing cover 101 on the protective tube 1 and also makes it easy for the staff to disassemble the sealing cover 101 .

[0046] The sealing cover 101 is fixedly connected with a support ring 2, the support ring 2 is provided with a sealing ring 201, the sealing ring 201 is fitted with the inner wall of the protective tube 1, the protective tube 1 is provided with a sealing gasket 202, the sealing gasket 202 is fitted with the sealing cover 101;

[0047] By providing the sealing ring 201 and the sealing gasket 202, after the sealing cover 101 is installed on the protective tube 1, the sealing gasket 202 fits tightly with the sealing cover 101, thereby increasing the sealing performance at the connection between the sealing cover 101 and the protective tube 1, and the supporting ring 2 squeezes the sealing ring 201 to fit tightly with the inner wall of the protective tube 1, thereby further increasing the sealing performance at the connection between the sealing cover 101 and the protective tube 1, thereby improving the sealing performance of the protective tube 1.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not used to limit the present invention.

Claims

1. An instrument fracturing detection device, It is characterized in that It comprises a protective tube (1) and a sealing cover (101) which is detachably connected to the protective tube (1); A booster pipe 1 (6) is fixedly connected to the protective tube (1). Wherein, a one-way valve is provided on the boost pipe 1 (6). A connecting pipe (603) fixedly connected to the protective tube (1); A pressure gauge body (4) threadedly connected to one end of the connecting pipe (603) located inside the protective tube (1); The sleeve (601) is fixedly connected to one end of the connecting tube (603) located outside the protective tube (1). The sleeve (601) is connected to the connecting pipe (603), a sealing plug (602) is slidably connected inside the sleeve (601), the sleeve (601) is transparent, a boosting pipe (7) is fixedly connected to the sleeve (601), a one-way valve is arranged on the boosting pipe (7), and a pressure sensor (701) is also included. The pressure sensor (701) is fixedly installed on the inner wall of the end of the sleeve (601) away from the connecting pipe (603), a sliding sleeve (501) is lifted and connected inside the protective tube (1), a sliding block (502) is slidably connected inside the sliding sleeve (501), a pressure cone (504) is detachably connected to the sliding block (502), and the sliding sleeve (501) is detachably connected to the pressure cone (504), and the sliding sleeve (501) A pressure sensor 1 (505) is fixedly mounted on the inner wall of the protective tube (1), a cylinder 2 (5) is fixedly mounted on the sealing cover (101), the sliding sleeve (501) is fixedly connected to the output end of the cylinder 2 (5), the pressure cone (504) is located directly above the pressure gauge body (4), and also includes a connecting shaft (503) fixedly connected to the sliding block (502), the pressure cone (504) is detachably connected to the end of the connecting shaft (503) away from the sliding block (502) by means of a threaded connection, a cylinder 1 (3) is fixedly mounted on the inner wall of the bottom of the protective tube (1), a bearing plate (301) is fixedly connected to the output end of the cylinder 1 (3), and the bearing plate (301) is in contact with the pressure gauge body (4); An elastic return member, arranged in the sleeve (601) and located between the sealing plug (602) and the inner wall of the sleeve (601); During the test, the pressure gauge body (4) to be tested is installed on the connecting pipe (603), and then the sealing cover (101) is installed on the protective tube (1), thereby closing the protective tube (1). After the preparation work is completed, the external booster pump is connected to the booster tube (6), and then the protective tube (1) is inflated and pressurized through the booster tube (6) to apply pressure to the pressure gauge body (4). Then, by observing whether the sealing plug (602) is displaced in the sleeve (601), the fracturing condition of the dial of the pressure gauge body (4) can be known.

2. An instrument fracturing detection device according to claim 1, It is characterized in that The elastic return member comprises a tension spring (8), one end of which is fixedly connected to the sealing plug (602), and the other end of which is fixedly connected to the inner wall of the sleeve (601).

3. The instrument fracturing detection device according to claim 1, It is characterized in that The protective cylinder (1) is fixedly connected to a liquid discharge pipe (9), and the liquid discharge pipe (9) is provided with a solenoid valve (901).

4. The instrument fracturing detection device according to claim 1, It is characterized in that The sealing cover (101) is detachably connected to the protective cylinder (1) via a plurality of fixing bolts (102).

5. The instrument fracturing detection device according to claim 4, It is characterized in that The sealing cover (101) is fixedly connected to a support ring (2), the support ring (2) is provided with a sealing ring (201), the sealing ring (201) fits with the inner wall of the protective tube (1), the protective tube (1) is provided with a sealing gasket (202), and the sealing gasket (202) fits with the sealing cover (101).

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