Tool for rapidly detecting and adjusting pressure of anti-recoil device of artillery

Abstract

The utility model provides a tool for rapidly detecting and adjusting the pressure of an artillery anti-recoil device, which is applied to the technical field of pressure detection of the artillery anti-recoil device, and is characterized in that a body is provided with an air passage, and is provided with a pressure gauge for detecting the pressure of air in the air passage; the connecting joint is rotationally assembled on the body and communicated with one end of the air channel, and the connecting joint is connected with a tested valve; the ejector rod is located in the air channel and is in threaded connection with the body, and the ejector rod is screwed to move back and forth in the air channel; when the ejector rod moves forwards, a valve element of the tested valve is ejected open so that high-pressure gas of the artillery anti-recoil device can enter the gas channel. The gas injection quick connector is assembled on the body and is communicated with the gas channel; the constant pressure valve is assembled on the body and is communicated with the air passage; the device has the technical effects that the pressure of the anti-recoil device of the artillery can be quickly detected and accurately adjusted, the operation time is greatly shortened, and the guarantee efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection of the recoil mechanism of guns, in particular to a tool for quickly detecting and adjusting the pressure of the recoil mechanism of guns. Background Art

[0002] The recoil mechanism is an important part of a gun. During the firing process of the gun, it can effectively control the recoil force of the recoil part of the gun and keep the gun barrel recoiling smoothly, thereby ensuring the safety of personnel operating the gun and good combat and technical performance. Therefore, the detection and adjustment of the pressure of the recoil mechanism of the gun are very professional and rigorous tasks;

[0003] At present, the pressure of the recoil mechanism of the gun is detected by connecting a detection tool to the valve under test on the recoil mechanism of the gun, and the pressure of the recoil mechanism of the gun is detected by the pressure gauge on the detection tool; however, the existing detection tools do not have the function of adjusting pressure, the functions are relatively limited, and cannot meet the use requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide a tool for quickly detecting and adjusting the pressure of the recoil mechanism of the gun, and its advantage is that it can quickly detect and accurately adjust the pressure of the recoil mechanism of the gun, greatly improving the efficiency of support work.

[0005] To achieve the above object and other related objects, the utility model provides the following technical solutions:

[0006] A tool for quickly detecting and adjusting the pressure of the recoil mechanism of the gun, comprising

[0007] A body, an air passage is opened on the body, and a pressure gauge for monitoring the gas pressure in the air passage is assembled on the body;

[0008] A connecting joint, rotatably assembled on the body and communicated with one end of the air passage, and the connecting joint is connected to the valve under test;

[0009] A push rod, located in the air passage and threadedly connected to the body, screwing the push rod to move it back and forth in the air passage; when the push rod moves forward, it pushes open the valve core of the valve under test so that the high-pressure gas of the recoil mechanism of the gun enters the air passage;

[0010] An air injection quick connector, assembled on the body and communicated with the air passage, and the air injection quick connector is connected to a high-pressure gas cylinder to inject gas into the recoil mechanism of the gun through the air passage;

[0011] A pressure regulating valve, assembled on the body and communicated with the air passage, when the pressure of the recoil mechanism of the gun is greater than the standard value, the pressure regulating valve automatically opens and discharges gas to adjust the pressure of the recoil mechanism of the gun to the required standard value.

[0012] In an embodiment of the present utility model, a limiting groove coaxial with and communicating with the air passage is provided on the body;

[0013] One end of the ejector rod is fixed with a handle, and a limiting block matched with the limiting groove is integrally formed on the handle;

[0014] A first sealing ring is arranged in the limiting groove, and the first sealing ring is sleeved on the ejector rod.

[0015] In an embodiment of the present utility model, a pressure regulating air passage communicating with the air passage is provided on the body;

[0016] The constant pressure valve includes a pressure regulating screw threadedly connected to the body, a pressure regulating valve core movably connected to the pressure regulating screw, a pressure regulating spring sleeved on the pressure regulating valve core and connected to the pressure regulating screw at one end and to the pressure regulating valve core at the other end, and a sealing gasket fixed at the front end of the pressure regulating valve core for sealing the pressure regulating air passage;

[0017] An air groove is formed on the pressure regulating valve core.

[0018] In an embodiment of the present utility model, a through hole is formed in the middle of the axis of the pressure regulating screw, and a plurality of air outlet holes communicating with the through hole are formed on the end face of the pressure regulating screw close to the pressure regulating valve core.

[0019] In an embodiment of the present utility model, a locking nut is threadedly connected to the pressure regulating screw.

[0020] In an embodiment of the present utility model, a pressure relief air passage communicating with the air passage is provided on the body;

[0021] An opening and closing rod for controlling the opening and closing of the pressure relief air passage is threadedly connected to the body.

[0022] In an embodiment of the present utility model, a pressure relief groove communicating with the pressure relief air passage is provided on the body;

[0023] A sealing pad located in the pressure relief groove is fixedly arranged at the end of the opening and closing rod;

[0024] A pressure relief hole communicating with the pressure relief groove is formed on the body.

[0025] As described above, a tool for quickly detecting and adjusting the pressure of the gun recoil mechanism of the present utility model has the following beneficial effects:

[0026] 1. The long connecting rod of the existing tool is changed into a short connecting joint design, which shortens the length and is convenient for operation and carrying; the connecting joint is used to connect the valve to be tested on the artillery recoil device, and the push rod is located in the airway. The push rod is screwed to move it back and forth in the airway, so that the push rod can push open the valve core of the valve to be tested when it moves forward, and then the high-pressure gas in the artillery recoil device enters the airway through the valve to be tested, and the pressure gauge is used to display the gas pressure in the airway; and then the air pressure in the artillery recoil device can be monitored synchronously; when the pressure of the artillery recoil device displayed on the pressure gauge is lower than the standard value, the gas injection quick connector can be used to connect with the high-pressure gas cylinder, so that the high-pressure gas cylinder can be used to inject gas into the artillery recoil device through the airway, and when the pressure is checked again after the gas injection is completed, the pressure can be measured by unplugging the gas injection quick connector; when the pressure of the artillery recoil device displayed on the pressure gauge is higher than the standard value, the constant pressure valve works to accurately adjust the pressure of the artillery recoil device to the standard value;

[0027] 2. Compared with existing tools, a stroke limit design is added to the tail end of the ejector rod. The limit block and the limit groove are used to limit the maximum stroke of the ejector rod, which can completely prevent the ejector rod from damaging the valve core being tested during operation;

[0028] 3. The gas injection screw and screw cap in the existing tools are replaced with a gas injection quick connector design, which can realize gas injection and detection of the artillery recoil device without disassembling the screw cap, saving time;

[0029] 4. The design of the pressure regulating valve can realize automatic and accurate pressure regulation, avoiding multiple manual pressure regulation, saving time; when the pressure of the gun recoil device is greater than the standard value, the gas pressure is greater than the elastic force of the pressure regulating spring, and then the pressure regulating spring is compressed and drives the sealing gasket to open the pressure regulating airway. At this time, the gas in the airway flows out through the air groove to relieve pressure; when the gas pressure in the airway is equal to the pressure standard value, the sealing gasket seals the pressure regulating airway again under the action of the elastic force of the pressure regulating spring, thereby realizing the role of accurate automatic pressure regulation;

[0030] 5. The design of the opening and closing rod is added to facilitate the complete pressure relief of the tool itself or the pressure relief conditions required for work;

[0031] 6. Compared with existing tools, the length is only one-third of the original, which effectively reduces the strength and height of the operator's hand holding the tool at the rear end, making it easier to control the tool to align with the valve to be tested, making the operation connection faster and easier;

[0032] 7. The tool can be disassembled and assembled, which is compact and light. The gas injection quick connector, sealing ring, and sealing gasket are national standard parts, which are easy to replace in case of damage. The threads of the pressure regulating screw and the locking nut meet the national standard requirements. When the pressure regulating valve is damaged and there is no spare part to replace, the pressure regulating valve can be removed and replaced with bolts and sealing gaskets with the same threads, and the pressure can be adjusted manually. It has flexible and practical characteristics.

[0033] 8. The overall operation time is shortened by 3 times compared with the original. It has the characteristics of rapid pressure measurement, automatic pressure regulation, fast inflation, reliable deflation, high sealing, easy maintenance, small size and light weight, achieving the purpose of quickly detecting and adjusting the pressure of the gun recoil device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the front view of the overall structure of the embodiment of the present invention;

[0035] Figure 2 is the cross-sectional view of the overall structure of the embodiment of the present invention from the first perspective;

[0036] Figure 3 is Figure 2 the enlarged schematic view of part A in

[0037] Figure 4 is the top view of the overall structure of the embodiment of the present invention;

[0038] Figure 5 is the left view of the overall structure of the embodiment of the present invention;

[0039] Figure 6 is the cross-sectional view of the overall structure of the embodiment of the present invention from the second perspective;

[0040] Figure 7 is the cross-sectional view of the pressure regulating valve structure of the embodiment of the present invention;

[0041] Figure 8 is the side view of the connection between the pressure regulating valve core and the sealing gasket of the embodiment of the present invention.

[0042] Reference numerals: 1, body; 2, connecting pipe; 3, air duct; 4, pressure gauge; 5, connecting joint; 6, ejector rod; 7, quick injection joint; 8, constant pressure valve; 81, pressure regulating screw; 82, pressure regulating valve core; 83, pressure regulating spring; 84, sealing gasket; 85, air groove; 86, locking nut; 13, pressure regulating air duct; 14, limiting groove; 15, limiting block; 16, handle; 17, first sealing ring; 18, pressure relief air duct; 19, opening and closing rod; 20, inserting rod; 21, pressure relief groove; 22, sealing pad; 23, pressure relief hole; 24, sealing washer; 25, mounting ring; 26, adjusting cross bar; 27, air outlet hole; 28, connecting groove; 29, through hole; 30, guiding rod; 31, pressure regulating groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0044] Please refer to Figures 1 to 8It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have technical substantial significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the efficacy that the present utility model can generate and the purpose that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the implementation scope of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present utility model can implement.

[0045] Please refer to Figure 1 , the present utility model provides a tool for quickly detecting and adjusting the pressure of the recoil device of a gun, including a body 1, a connection joint 5, a push rod 6, an air injection quick joint 7, a constant pressure valve 8, and an opening and closing rod 19. The body 1 in this embodiment has a square structure. A connecting pipe 2 is integrally formed on the right side wall of the body 1. Air channels 3 that communicate with each other are provided on both the body 1 and the connecting pipe 2. The air channel 3 has a linear structure. An installation ring 25 is integrally formed on the side wall of the connecting pipe 2 away from the body 1. The connection joint 5 is rotatably connected to the installation ring 25. A connection groove 28 that communicates with one end of the air channel 3 is provided on the connection joint 5 away from the installation ring 25. Connecting threads are provided on the side wall of the connection groove 28. After docking the connection joint 5 with the valve to be measured, by screwing the connection joint 5, the connection joint can be threadedly fixed to the valve to be measured. A sealing gasket 24 is provided in the connection groove 28, and the sealing gasket 24 is used to improve the sealing performance between the connection joint 5 and the valve to be measured.

[0046] A pressure gauge 4 for monitoring the gas pressure in the air channel 3 is assembled on the front side wall of the body 1.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3, a limiting groove 14 communicating with the air duct 3 is arranged on the left side wall of the main body 1, and the limiting groove 14 is coaxially arranged with the air duct 3; internal threads are arranged on the inner wall of a part of the air duct 3 close to the limiting groove 14, the ejector rod 6 is located in the air duct 3, and a threaded section engaged with the internal threads is arranged on the side wall of the ejector rod 6 so that the ejector rod 6 is threadedly connected to the main body 1, and the ejector rod 6 is screwed to move back and forth in the air duct 3; when the ejector rod 6 moves forward, the valve core of the valve under test is pushed open so that the high-pressure gas of the gun recoil mechanism enters the air duct 3; one end of the ejector rod 6 located outside the air duct 3 is fixed with a handle 16, and a limiting block 15 matched with the limiting groove 14 is integrally formed on the handle 16, and the limiting block 15 and the limiting groove 14 are matched to limit the maximum stroke of the ejector rod 6, thereby avoiding the ejector rod 6 damaging the valve core under test during operation; a first sealing ring 17 is arranged in the limiting groove 14, and the first sealing ring 17 is sleeved on the ejector rod 6; the first sealing ring 17 is used to improve the sealing performance of the air duct 3; in this embodiment, a plurality of sealing rings can be arranged in the limiting groove 14 to improve the sealing performance.

[0048] Please refer to Figure 1 , Figure 2 and Figure 3 , the gas injection quick connector 7 is assembled on the bottom side wall of the main body 1 and communicates with the air duct 3; the gas injection quick connector 7 can realize the quick connection and disassembly with the high-pressure gas cylinder; when the pressure of the gun recoil mechanism is less than the standard value, the gas injection quick connector 7 is connected with the high-pressure gas cylinder to inject gas into the air duct 3 to adjust the pressure standard value and realize quick inflation;

[0049] Among them, the gas injection quick connector 7 is a pneumatic quick connector, and the pneumatic quick connector has a self-locking function. When the high-pressure gas cylinder is assembled on the gas injection quick connector 7, the valve in the gas injection quick connector 7 is opened, and when the high-pressure gas cylinder is removed, the valve in the gas injection quick connector 7 is closed.

[0050] Please refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , the constant pressure valve 8 is assembled on the rear side wall of the main body 1 and communicates with the air duct 3. When the pressure of the gun recoil mechanism is greater than the standard value, the constant pressure valve 8 opens to release gas to adjust the pressure standard value; a pressure regulating air duct 13 communicating with the air duct 3 is arranged in the main body 1, a pressure regulating groove 31 communicating with the pressure regulating air duct 13 is formed on the rear side wall of the main body 1, and the constant pressure valve 8 is installed in the pressure regulating groove 31; the constant pressure valve 8 includes a pressure regulating screw 81, a pressure regulating valve core 82, a pressure regulating spring 83 and a sealing gasket 84;

[0051] The inner wall of the pressure regulating groove 31 is provided with internal threads, and the pressure regulating screw rod 81 is engaged with the internal threads so that the pressure regulating screw rod 81 is threadedly fixed on the body 1. A locking nut 86 is threadedly connected to the pressure regulating screw rod 81 located outside the body 1, and the locking nut 86 is used to strengthen the connection between the pressure regulating screw rod 81 and the body 1; a through hole 29 is axially provided in the middle of the pressure regulating screw rod 81, and a plurality of air outlet holes 27 communicating with the through hole 29 are provided on the end face of the pressure regulating screw rod 81 close to one side of the pressure regulating air passage 13; one end of the pressure regulating valve core 82 is integrally formed with a guide rod 30 inserted into the through hole 29, and the guide rod 30 is movably connected in the through hole 29 and corrects the forward and backward movement of the pressure regulating valve core 82. The other end of the pressure regulating valve core 82 is integrally formed with a fixing rod, and a sealing gasket 84 is adhesively fixed on the front end of the pressure regulating valve core 82; the diameter of the sealing gasket 84 is smaller than the diameter of the pressure regulating valve core 82, and the sealing gasket 84 is used to seal the pressure regulating air passage 13; a pressure regulating spring 83 is sleeved on the pressure regulating valve core 82; a washer is provided at the end of the pressure regulating screw rod 81 close to the pressure regulating valve core 82, and both ends of the pressure regulating spring 83 are respectively connected to the washer and the end of the pressure regulating valve core 82, so that the pressure regulating spring is evenly stressed and performs axial telescopic movement; the sealing gasket 84 is of a conical structure, and an air groove 85 is provided on the pressure regulating valve core 82; when the gas pressure in the air passage 3 is greater than the standard value, the gas pressure is greater than the elastic force of the pressure regulating spring 83, and the pressure regulating spring 83 is compressed and drives the sealing gasket 84 to open the pressure regulating air passage 13. At this time, the gas in the air passage 3 flows out through the air groove 85 and is discharged from the body 1 through the air outlet holes 27, playing a role in pressure relief; when the gas pressure in the air passage 3 is equal to the pressure standard value, the sealing gasket 84 seals the pressure regulating air passage 13 again under the action of the elastic force of the pressure regulating spring 83; thus, the function of automatic and precise pressure regulation is realized.

[0052] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in, a pressure relief air passage 18 communicating with the air passage 3 is provided in the body 1, a pressure relief groove 21 coaxial and communicating with the pressure relief air passage 18 is provided on the top side wall of the body 1, internal threads are provided on the inner wall of the pressure relief groove 21, and a threaded section engaged with the internal threads is provided on the upper side wall of the opening and closing rod 19 so that the opening and closing rod 19 controls the opening or closing of the pressure relief air passage 18;

[0053] One end of the opening and closing rod 19 is fixedly provided with an adjusting cross bar 26, and the other end of the opening and closing rod 19 is integrally formed with an inserting rod 20 inserted into the pressure relief air passage 18. A sealing gasket 22 sleeved on the inserting rod 20 is provided in the pressure relief groove 21; the adjusting cross bar 26 is perpendicular to the opening and closing rod 19, and the adjusting cross bar 26 serves as a handle for facilitating the screwing of the opening and closing rod 19;

[0054] A pressure relief hole 23 communicating with the pressure relief groove 21 is provided on the left side wall of the main body 1; when the opening and closing rod 19 is screwed, the bottom of the opening and closing rod 19 is separated from the sealing gasket 22, so that the pressure relief air passage 18 communicates with the pressure relief groove 21, and then the gas is discharged through the pressure relief hole 23 to achieve pressure relief.

[0055] Brief description of the use process: During pressure measurement, the docking connection joint 5 is connected to the valve to be measured, and the connection joint 5 is rotated to threadedly connect the connection joint 5 with the valve to be measured. After being tightened and sealed, a reliable sealed connection is formed; then the handle 16 is rotated clockwise to make the ejector rod 6 move forward in the air passage 3 and gradually push open the valve core of the valve to be measured. The high-pressure gas of the gun recoil device enters the air passage 3, and the pressure gauge 4 shows the gas pressure in the air passage 3 (i.e., the pressure of the gun recoil device).

[0056] When the gas pressure in the air passage 3 exceeds the standard value set by the constant pressure valve 8 (the pressure gauge 4 synchronously shows the pressure), the gas pressure is greater than the elastic force of the pressure regulating spring 83. Then, the pressure regulating spring 83 is compressed and drives the sealing rubber gasket 84 to open the pressure regulating air passage 13. At this time, the gas in the air passage 3 flows out through the air groove 85; automatic air discharge through the air hole is realized; when the gas pressure in the air passage 3 is equal to the pressure standard value, the sealing rubber gasket 84 seals the pressure regulating air passage 13 again under the action of the elastic force of the pressure regulating spring 83.

[0057] When the gas pressure in the air passage 3 is lower than the standard value, the constant pressure valve 8 does not exhaust gas; the pressure gauge 4 synchronously shows a pressure value lower than the standard; at this time, it is necessary to supplement gas to the gun recoil device; during gas injection, the high-pressure gas cylinder is connected to the gas injection quick connector 7 through a gas pipe and supplements gas to the gun recoil device through the air passage 3; the pressure gauge 4 synchronously monitors the gas injection pressure. When the filled gas pressure exceeds the standard value, the constant pressure valve 8 timely discharges the excess gas pressure to make the pressure stable at the standard value and stop inflating, so as to achieve the purpose of automatic and precise pressure regulation.

[0058] After filling the gas, pull out the gas pipe from the gas injection quick connector 7, and use the self-locking function of the gas injection quick connector 7 without using a gas blocking screw cap to block the gas injection quick connector 7; achieve the purpose of detecting and adjusting the pressure of the gun recoil device at one time.

[0059] To sum up, the overall operation time of the present utility model is shortened by 3 times compared with the original, and it has the characteristics of rapid pressure measurement, automatic pressure regulation, rapid gas filling, reliable gas discharge, high sealing, easy maintenance, small and light weight, and achieves the purpose of quickly detecting and adjusting the pressure of the gun recoil device. Therefore, the present utility model effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0060] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A tool for quickly detecting and adjusting the pressure of the gun recoil mechanism, characterized in that: including a body (1) with an air passage (3) formed thereon, and a pressure gauge (4) assembled on the body (1) for monitoring the gas pressure in the air passage (3); a connecting joint (5) rotatably assembled on the body (1) and communicating with one end of the air passage (3), and the connecting joint (5) is connected to the valve to be measured; a push rod (6) located in the air passage (3) and threadedly connected to the body (1), and the push rod (6) is screwed to move back and forth in the air passage (3); when the push rod (6) moves forward, it pushes open the valve core of the valve to be measured so that the high-pressure gas of the gun recoil mechanism enters the air passage (3); an air injection quick connector (7) assembled on the body (1) and communicating with the air passage (3), when the pressure of the gun recoil mechanism is less than the standard value, the air injection quick connector (7) is connected to a high-pressure gas cylinder to inject gas into the gun recoil mechanism through the air passage (3); a constant pressure valve (8) assembled on the body (1) and communicating with the air passage (3), when the pressure of the gun recoil mechanism is greater than the standard value, the constant pressure valve (8) automatically opens and discharges gas to adjust the pressure of the gun recoil mechanism to the required standard value.

2. A tool for quickly detecting and adjusting the pressure of the recoil mechanism of a gun according to claim 1, characterized in that: a limiting groove (14) coaxial with the air passage (3) and communicating with the air passage (3) is provided on the body (1); a handle (16) is fixed at one end of the push rod (6), and a limiting block (15) cooperating with the limiting groove (14) is integrally formed on the handle (16); a first sealing ring (17) is arranged in the limiting groove (14), and the first sealing ring (17) is sleeved on the push rod (6).

3. A tool for quickly detecting and adjusting the pressure of the recoil mechanism of a gun according to claim 1, characterized in that: a pressure regulating air passage (13) communicating with the air passage (3) is provided on the body (1); the constant pressure valve (8) includes a pressure regulating screw rod (81) threadedly connected to the body (1), a pressure regulating valve core (82) movably connected to the pressure regulating screw rod (81), a pressure regulating spring (83) sleeved on the pressure regulating valve core (82) and connected to the pressure regulating screw rod (81) at one end and to the pressure regulating valve core (82) at the other end, and a sealing rubber pad (84) fixed at the front end of the pressure regulating valve core (82) for sealing the pressure regulating air passage (13); an air groove (85) is formed on the pressure regulating valve core (82).

4. A tool for quickly detecting and adjusting the pressure of the recoil mechanism of a gun according to claim 3, characterized in that: a through hole (29) is formed in the middle of the axis of the pressure regulating screw rod (81), and a plurality of air outlet holes (27) communicating with the through hole (29) are formed on the end face of the pressure regulating screw rod (81) close to the pressure regulating valve core (82).

5. A tool for quickly detecting and adjusting the pressure of the recoil mechanism of a gun according to claim 3, characterized in that: a locking nut (86) is threadedly connected to the pressure regulating screw rod (81).

6. A tool for quickly detecting and adjusting the pressure of the recoil mechanism of a gun according to claim 1, characterized in that: a pressure relief air passage (18) communicating with the air passage (3) is provided on the body (1); an opening and closing rod (19) for controlling the opening and closing of the pressure relief air passage (18) is threadedly connected to the body (1).

7. A tool for quickly detecting and adjusting the pressure of the recoil mechanism of a cannon according to claim 6, characterized in that: a pressure relief groove (21) communicating with the pressure relief air passage (18) is provided on the body (1); the opening and closing rod (19) is located in the pressure relief groove (21), and a sealing gasket (22) is arranged in the pressure relief groove (21); a pressure relief hole (23) communicating with the pressure relief groove (21) is formed on the body (1).

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