Oxygen bomb and oxygen bomb exhaust joint

Abstract

The invention discloses an oxygen bomb and an oxygen bomb exhaust connector. The oxygen bomb exhaust connector comprises a connector body; a through hole is provided in the middle of the connector body for being mounted and sealingly fitted on the outer periphery of the oxygen bomb head of the oxygen bomb; and a connector air pipe is provided on the side wall of the through hole, extending radially and penetrating therethrough. The oxygen bomb exhaust connector is suitable for an oxygen bomb assembled by a needle valve of a solid structure and an oxygen bomb head with a connecting air pipe provided on the side wall, and is used to realize the vacuuming operation of the oxygen bomb. When vacuuming, firstly, the connector body is mounted on the oxygen bomb head, and then the needle valve is loosened relative to the oxygen bomb head, so that the oxygen bomb air pipe, the connecting air pipe and the connector air pipe are connected in sequence, and then the oxygen bomb exhaust connector is connected to the vacuuming equipment to realize the vacuuming of the oxygen bomb. After vacuuming, the needle valve is tightened relative to the oxygen bomb head and the oxygen bomb exhaust connector is removed. The oxygen bomb and its needle valve to which the oxygen bomb exhaust connector is suitable have high structural strength, corrosion resistance, good sealing and long service life.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen bombs, and in particular to an oxygen bomb exhaust connector. The present invention also relates to an oxygen bomb, which is suitable for the oxygen bomb exhaust connector. Background Art

[0002] The oxygen bomb is a core component of calorimetric equipment such as the detonation calorimeter.

[0003] When the oxygen bomb is in working state, it is necessary to fill the inside with 3MPa of oxygen, or evacuate the inside. When the inside of the oxygen bomb is evacuated, the vacuum degree is required to be below 400Pa, and the oxygen bomb is required to withstand a pressure of more than 30MPa. In addition, the oxygen bomb should also have the characteristics of corrosion resistance, oxidation resistance, high pressure resistance, high temperature resistance and good airtightness. Since the oxygen bomb uses electric ignition when working, the insulation performance of the two poles of the oxygen bomb is also required to be good.

[0004] In order to achieve the internal sealing of the oxygen bomb, the oxygen bomb is currently mainly vacuumed and sealed through the following structure. Please refer to Figure 1 The oxygen bomb uses the original needle valve 001 with a hollow structure, a vacuum joint assembly and a vacuum pump to realize the vacuum operation of the oxygen bomb. When the oxygen bomb is vacuumed, the original needle valve 001 needs to be loosened, and then the original needle valve 001 with a hollow joint is used to connect the air pipe 002 in the oxygen bomb to extract the air inside the oxygen bomb from the top of the original needle valve 001.

[0005] Among them, the original needle valve 001 is a small-sized component, and an L-shaped pipe needs to be set inside the original needle valve 001, which makes the structure of the original needle valve 001 complicated and difficult to process. In addition, the original needle valve 001 installed on the oxygen bomb needs to be frequently screwed to adjust the installation position. The original needle valve 001 set as a hollow structure has low structural strength and is not durable.

[0006] Since the L-shaped pipe inside the original needle valve 001 is involved in the main operation of evacuating the oxygen bomb, and the valve core at the bottom of the original needle valve 001 is involved in the main operation of sealing the oxygen bomb, the original needle valve 001 and the vacuum joint assembly and the rest of the structure of the oxygen bomb are all provided with a complex sealing structure, which further increases the difficulty of designing and assembling the original needle valve 001 and is not conducive to extending the service life of the oxygen bomb and the original needle valve 001. Summary of the invention

[0007] The object of the present invention is to provide an oxygen bomb evacuation connector, which is suitable for the vacuuming of an oxygen bomb assembled by a needle valve of a solid structure and an oxygen bomb head with a connecting air pipe on the side wall, and the sealing of the oxygen bomb is simple and convenient. Another object of the present invention is to provide an oxygen bomb, which is suitable for the above oxygen bomb evacuation connector, and can improve the sealing effect and the service life of the needle valve.

[0008] To achieve the above-mentioned purpose, the present invention provides an oxygen bomb exhaust joint, comprising a joint body; a through hole is provided in the middle of the joint body for being fitted and sealingly fitted on the outer periphery of the oxygen bomb head of the oxygen bomb; a joint air pipe is provided on the side wall of the through hole and extends radially and penetrates through the joint air pipe; the joint air pipe is used to be connected with the oxygen bomb air pipe and the connecting air pipe on the side wall of the oxygen bomb head in sequence when the needle valve of the oxygen bomb is separated from the oxygen bomb air pipe inside the oxygen bomb.

[0009] Preferably, the through hole has a first hole wall at the upper portion for sealingly fitting the needle valve, and a second hole wall at the lower portion for sealingly fitting the oxygen bullet.

[0010] Preferably, the first hole wall is provided with a first annular groove and a first sealing ring embedded in the first annular groove for sealing the outer wall of the needle valve; the second hole wall is provided with a second annular groove and a second sealing ring embedded in the second annular groove for sealing the outer wall of the oxygen bomb.

[0011] Preferably, the joint body includes a first joint body and a tubular second joint body; the joint air pipe includes a first joint air pipe arranged in the first joint body and a second joint air pipe arranged in the second joint body;

[0012] The first joint body is used to cover the oxygen bullet, and the second joint body is inserted and sealed to the first joint air pipe.

[0013] Preferably, the outer wall of the second joint body is threadedly connected to the first joint air pipe, and a third sealing ring is provided between the contact surfaces of the two.

[0014] The present invention also provides an oxygen bomb, which is suitable for the oxygen bomb exhaust joint as described above to perform vacuum operation, comprising a bomb body with an oxygen bomb gas pipe at the head, an oxygen bomb head mounted on the bomb body head, and a needle valve inserted above the inside of the oxygen bomb head for blocking and opening the oxygen bomb gas pipe;

[0015] The needle valve is a solid structure; the outer diameter of the lower part of the needle valve is smaller than the inner diameter of the oxygen bomb; the upper part of the needle valve is interference fitted on the oxygen bomb;

[0016] The side wall of the oxygen bomb is provided with a radially penetrating connecting air pipe.

[0017] Preferably, the oxygen bomb and the needle valve are threadedly connected.

[0018] Preferably, the bomb body comprises a bomb barrel, a bomb cover sealed at the head of the bomb barrel, and a core body; the oxygen bomb gas pipe is axially penetrated inside the core body; the core body is inserted from the center of the bomb cover and communicated with the cavity of the bomb barrel;

[0019] An insulating ceramic ring, a plastic insulating pad and an elastic insulating ring are sequentially mounted between the contact surface of the elastic cover and the core body from bottom to top.

[0020] Preferably, a nut is provided between the oxygen warhead and the bomb cover; the nut is sleeved on the core body; the nut is sealedly connected to the oxygen warhead, the core body and the bomb cover.

[0021] Preferably, the ring width of the insulating ceramic ring is greater than the ring width of the plastic insulating pad.

[0022] Compared with the above background technology, the oxygen bomb exhaust connector provided by the present invention includes a connector body with a through hole in the middle.

[0023] When the oxygen bomb exhaust connector is used to connect and extract the air inside the oxygen bomb, the through hole is fitted and sealed to the outer periphery of the oxygen bomb head of the oxygen bomb. Since the side wall of the through hole is provided with a joint air pipe extending radially and penetrating, the inner end of the joint air pipe is connected to the connecting air pipe on the side wall of the oxygen bomb head. When the needle valve of the oxygen bomb is separated from the oxygen bomb air pipe inside the oxygen bomb, the top of the oxygen bomb air pipe is opened and connected to the connecting air pipe, and then connected to the joint air pipe. At this time, a vacuum pump or other vacuum equipment is used to connect the oxygen bomb exhaust connector to extract the air inside the oxygen bomb.

[0024] It can be seen that the joint air pipe of the oxygen bomb exhaust joint provided by the present invention cooperates with the connecting air pipe arranged on the side wall of the oxygen bomb head to replace the L-shaped pipe originally arranged inside the needle valve. Compared with the needle valve that needs to take into account the sealing function, whether it is the oxygen bomb exhaust joint provided by the present invention or the oxygen bomb head using the oxygen bomb exhaust joint, it is convenient to set up the pipe and seal, and the pipe has little effect on the structural strength of the corresponding parts. On the basis of the above structure, the needle valve can be set as a solid structure to improve the structural strength, sealing effect and corrosion resistance of the needle valve.

[0025] The oxygen bomb provided by the present invention is suitable for the oxygen bomb exhaust joint. The oxygen bomb comprises a bomb body with an oxygen bomb air pipe at the head, an oxygen bomb head mounted on the bomb body head, and a needle valve inserted above the oxygen bomb head to block and open the oxygen bomb air pipe.

[0026] The needle valve is a solid structure; the outer diameter of the lower part of the needle valve is smaller than the inner diameter of the oxygen warhead; the upper part of the needle valve is interference fitted on the oxygen warhead. The side wall of the oxygen warhead is provided with a radially penetrating connecting air pipe.

[0027] When the oxygen bomb is evacuated, firstly, the oxygen bomb exhaust joint is sleeved on the oxygen bomb head, so that the inner wall of the through hole of the oxygen bomb exhaust joint is sealed close to the outer periphery of the oxygen bomb head, and the joint air pipe of the oxygen bomb exhaust joint is connected with the connecting air pipe of the side wall of the oxygen bomb head; secondly, the valve core of the needle valve is separated from the oxygen bomb air pipe to realize the opening of the top end of the oxygen bomb air pipe. Since there is a gap between the lower periphery of the needle valve and the inner wall of the oxygen bomb head, the top end of the oxygen bomb air pipe is connected with the connecting air pipe of the oxygen bomb head through the aforementioned gap, and then connected with the joint air pipe of the oxygen bomb exhaust joint; furthermore, the oxygen bomb exhaust joint is connected with a vacuum pump or other vacuum equipment to realize the evacuation of the oxygen bomb.

[0028] After the vacuum is drawn, the valve core of the needle valve is used to seal the oxygen bomb air pipe to achieve the sealing of the oxygen bomb.

[0029] In summary, in the oxygen bomb provided by the present invention, the needle valve is a solid structure. Compared with the hollow needle valve in the prior art, it has high structural strength, corrosion resistance, easy sealing and good sealing performance, which is beneficial to improving the sealing performance and service life of the oxygen bomb. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the partial structure of an oxygen bomb provided by the prior art;

[0032] Figure 2 A schematic diagram of the structure of an oxygen bomb provided in an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of the assembly of an oxygen bomb and an oxygen bomb exhaust connector provided in an embodiment of the present invention;

[0034] Figure 4 A cross-sectional view of an oxygen bomb and an oxygen bomb exhaust connector provided in an embodiment of the present invention in an assembled state;

[0035] Figure 5 for Figure 4 A partial enlarged view of .

[0036] Among them, 001-original needle valve, 002-air pipe, 01-oxygen bomb, 011-oxygen warhead, 0111-connecting air pipe, 012-needle valve, 0121-valve core, 013-oxygen bomb air pipe, 014-bullet cylinder, 015-bullet cover, 016-core body, 017-nut, 018-insulating ceramic ring, 0191-inner insulating pad, 0192-outer insulating pad, 020-elastic insulating ring, 021-buckle, 022-electrode rod, 023-crucible rack, 1-joint body, 101-first joint body, 102-second joint body, 11-joint air pipe, 111-first joint air pipe, 112-second joint air pipe, 12-first sealing ring, 13-second sealing ring, 14-third sealing ring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] Please refer to Figures 1 to 5 , Figure 1 A schematic diagram of the partial structure of an oxygen bomb provided by the prior art; Figure 2 A schematic diagram of the structure of an oxygen bomb provided in an embodiment of the present invention; Figure 3 A schematic diagram of the assembly of an oxygen bomb and an oxygen bomb exhaust connector provided in an embodiment of the present invention; Figure 4 A cross-sectional view of an oxygen bomb and an oxygen bomb exhaust connector provided in an embodiment of the present invention in an assembled state; Figure 5 for Figure 4 A partial enlarged view of .

[0040] The present invention provides an oxygen bomb exhaust joint, comprising a joint body 1; a through hole is provided in the middle of the joint body 1; a joint air pipe 11 extending radially is provided on the circumference of the joint body 1, and the joint air pipe 11 penetrates the joint body 1 from the inner wall of the through hole to the outside.

[0041] The through hole is used to fit and seal the outer periphery of the oxygen warhead 011 of the oxygen bomb 01. That is to say, the inner diameter of the through hole matches the outer diameter of the oxygen warhead 011, so that the oxygen warhead 011 can be fitted and interference fit, ensuring that the contact surfaces of the two are sealed and fit.

[0042] The through hole passes through the connector body 1. Therefore, when the connector body 1 is sleeved on the outer periphery of the oxygen bomb 011, it is also sleeved on the outer periphery of the needle valve 012 above the oxygen bomb 011, and the needle valve 012 can move along the axial direction of the through hole, so that the valve core 0121 of the needle valve 012 can approach and move away from the oxygen bomb gas pipe 013, thereby sealing and opening the oxygen bomb gas pipe 013.

[0043] It should be noted that the oxygen bomb 01 suitable for the oxygen bomb exhaust connector has an oxygen bomb head 011 with a connecting air pipe 0111 on the side wall. Therefore, when the oxygen bomb exhaust connector is provided with a needle valve 012 and the oxygen bomb head 011, the joint air pipe 11 is connected with the connecting air pipe 0111 provided on the side wall of the oxygen bomb head 011. Once the valve core 0121 of the needle valve 012 is moved away to open the oxygen bomb air pipe 013, the top of the oxygen bomb air pipe 013 is connected with the joint air pipe 11 through the connecting air pipe 0111. At this time, the vacuum pump or other vacuum equipment connected to the oxygen bomb exhaust connector can be used to take out the air in the oxygen bomb 01 to realize the vacuum operation of the oxygen bomb. After the vacuum operation is completed, the valve core 0121 of the needle valve 012 is moved close to block the oxygen bomb air pipe 013 to realize the sealing of the oxygen bomb.

[0044] In summary, the oxygen bomb exhaust connector provided by the present invention is suitable for the vacuuming operation of the oxygen bomb 01. When vacuuming, the oxygen bomb exhaust connector is sleeved to be positioned and connected to the oxygen bomb 01; after vacuuming, the oxygen bomb 01 is sealed and the oxygen bomb exhaust connector is removed from the head of the oxygen bomb 01. Since the connector air pipe 11 of the oxygen bomb exhaust connector cooperates with the connecting air pipe 0111 arranged on the side wall of the oxygen bomb head 011 to replace the L-shaped pipe originally arranged inside the needle valve 012, compared with the needle valve 012 that needs to take into account the sealing function, both the oxygen bomb exhaust connector provided by the present invention and the oxygen bomb head 011 suitable for the oxygen bomb exhaust connector are convenient for setting the pipe and sealing, and the aforementioned pipe has little effect on the structural strength of the corresponding parts.

[0045] Based on the above structure, the oxygen bomb 01 suitable for the oxygen bomb exhaust connector does not need to be provided with an L-shaped pipe in the needle valve 012, so a solid needle valve 012 can be used to improve the structural strength, sealing effect and corrosion resistance of the needle valve 012. Compared with the hollow needle valve 012, the solid connector needle valve 012 has a simple structure and high strength, good sealing and corrosion resistance, which is conducive to improving the sealing and service life of the oxygen bomb 01.

[0046] The oxygen bomb exhaust connector provided by the present invention is further described below in conjunction with the accompanying drawings and implementation examples.

[0047] The needle valve 012 is inserted into the upper part of the oxygen bomb 011 . Therefore, the oxygen bomb exhaust connector provided by the present invention is sleeved on the outer periphery of the needle valve 012 when sleeved on the oxygen bomb 011 .

[0048] On the basis of the above embodiment, in order to improve the sealing effect between the oxygen bomb exhaust joint and the oxygen bomb 01, the upper part of the through hole has a first hole wall for sealingly fitting the outer periphery of the needle valve 012, and the lower part has a second hole wall for sealingly fitting the outer periphery of the oxygen bomb head 011.

[0049] Obviously, the inner diameter of the first hole wall matches the outer diameter of the needle valve 012. For example, the inner diameter of the first hole wall is equal to or slightly smaller than the outer diameter of the needle valve 012, so as to achieve interference fit between the first hole wall and the outer periphery of the needle valve 012. Similarly, the inner diameter of the second hole wall matches the outer diameter of the oxygen bullet 011, so as to achieve interference fit between the second hole wall and the outer periphery of the oxygen bullet 011.

[0050] In order to ensure the sealing of the joint air pipe 11, in the previous embodiment, the joint air pipe 11 can only extend outward along the middle of the contact surface of the through hole and the oxygen bullet 011, and the aforementioned contact surface is limited by the size of the oxygen bullet 011, so the inner diameter of the joint air pipe 11 is limited. In contrast, in this embodiment, since the upper part of the through hole is sealed with the outer periphery of the needle valve 012, and the lower part of the through hole is sealed with the outer periphery of the oxygen bullet 011, the joint air pipe 11 can be arranged between the contact surface of the through hole and the needle valve 012 and the contact surface of the through hole and the oxygen bullet 011, which significantly expands the inner diameter size range of the joint air pipe 11, which is conducive to improving the extraction efficiency and is also convenient for sealing the oxygen bomb extraction joint and the oxygen bomb 01.

[0051] For better sealing effect, the first hole wall is provided with a first annular groove and a first sealing ring 12 embedded in the first annular groove to seal the outer wall of the needle valve 012; the second hole wall is provided with a second annular groove and a second sealing ring 13 embedded in the second annular groove to seal the outer wall of the oxygen warhead 011. In short, in addition to achieving the sealing assembly of the joint body 1 and the needle valve 012 through the interference fit between the first hole wall and the outer periphery of the needle valve 012, this embodiment further strengthens the sealing assembly effect between the above two through the first sealing ring 12. Similarly, in addition to achieving the sealing assembly of the joint body 1 and the oxygen warhead 011 through the interference fit between the second hole wall and the outer periphery of the oxygen warhead 011, this embodiment further strengthens the sealing assembly effect between the above two through the second sealing ring 13.

[0052] The connector body 1 provided by the present invention may include a first connector body 101 and a second connector body 102; accordingly, the connector air pipe 11 includes a first connector air pipe 111 disposed in the first connector body 101 and a second connector air pipe 112 disposed in the second connector body 102. The through hole is disposed in the first connector body 101 along the axial direction thereof.

[0053] The first joint air pipe 111 extends along the radial direction of the first joint body 101 and includes an inner end and an outer end. The inner end of the first joint air pipe 111 is connected to the inner wall of the through hole.

[0054] The second connector body 102 is tubular, that is, the inner wall of the second connector body 102 forms the second connector air pipe 112. The second connector body 102 is inserted and sealed to the outer end of the first connector air pipe 111 to achieve communication between the second connector air pipe 112 and the first connector air pipe 111.

[0055] This embodiment simplifies the structure of the joint body and reduces the difficulty of processing the through hole and the joint air pipe, and the shape and size of the first joint air pipe 111 close to the oxygen bomb 01 are adapted to the shape and size of the oxygen bomb 01 and its oxygen warhead 011, and the shape and size of the second joint air pipe 112 away from the oxygen bomb 01 are adapted to the external vacuum equipment. For example, the outer end of the second joint air pipe 112 is provided with a connector for sealingly sleeved the suction port of a vacuum pump.

[0056] Furthermore, the outer wall of the second joint body 102 is threadedly connected to the inner wall of the first joint air pipe 111, and a third sealing ring 14 is provided between the contact surfaces of the two to simplify the connection between the first joint body 101 and the second joint body 102 and improve the sealing between the two.

[0057] The present invention further provides an oxygen bomb 01, which is suitable for the above oxygen bomb exhaust connector to realize the vacuum operation of the oxygen bomb 01. The oxygen bomb 01 includes a bomb body, an oxygen bomb head 011 and a needle valve 012.

[0058] The head of the projectile is provided with an oxygen bomb gas pipe 013, and the oxygen bomb gas pipe 013 is connected to the cavity inside the projectile.

[0059] The oxygen bomb 011 is sleeved on the head of the bomb body and is sleeved with an oxygen bomb air pipe 013. The side wall of the oxygen bomb 011 is provided with a radially penetrating connecting air pipe 0111.

[0060] The needle valve 012 is inserted above the inner part of the oxygen bomb 011. The valve core 0121 at the bottom of the needle valve 012 is coaxially distributed with the oxygen bomb gas pipe 013. When the needle valve 012 moves axially along the oxygen bomb 011, the valve core 0121 of the needle valve 012 approaches the end face of the oxygen bomb gas pipe 013 until the oxygen bomb gas pipe 013 is blocked; when the needle valve 012 moves axially along the oxygen bomb 011 and moves away from the end face of the oxygen bomb gas pipe 013, the valve core 0121 of the needle valve 012 is disengaged to open the oxygen bomb gas pipe 013.

[0061] In this embodiment, the needle valve 012 is a solid structure. The outer diameter of the lower part of the needle valve 012 is smaller than the inner diameter of the oxygen bullet 011; the upper part of the needle valve 012 is interference-fitted on the oxygen bullet 011. Based on this structure, when the needle valve 012 is inserted above the interior of the oxygen bullet 011, a gap is generated between the lower outer wall of the needle valve 012 and the inner wall of the oxygen bullet 011, and the gap realizes the communication between the oxygen bullet gas pipe 013 and the connecting gas pipe 0111. The upper outer wall of the needle valve 012 and the inner wall of the oxygen bullet 011 are interference-fitted to achieve sealing, ensuring that the oxygen bullet gas pipe 013 is only connected to the joint gas pipe 11 through the connecting gas pipe 0111.

[0062] When the oxygen bomb evacuation connector provided by the present invention is used to evacuate the oxygen bomb 01, firstly, the needle valve 012 is loosened relative to the oxygen bomb head 011 and the oxygen bomb gas pipe 013, for example, along Figure 4 The needle valve 012 is screwed on the top to move the needle valve 012 1 to 2 mm along the axial direction of the oxygen bomb 011 to move away from the oxygen bomb gas tube 013, so that the valve core 0121 at the bottom of the needle valve 012 is separated from the end of the oxygen bomb gas tube 013, and the connection between the connecting gas tube 0111 and the oxygen bomb gas tube 013 is realized. Secondly, the oxygen bomb exhaust joint is sleeved on the outer periphery of the oxygen bomb 011 and the needle valve 012, and the joint gas tube 11 is aligned to connect the connecting gas tube 0111; then, the vacuum device connected to the oxygen bomb exhaust joint is turned on to extract the air inside the oxygen bomb 01 outward.

[0063] When the air in the oxygen bomb 01 is evacuated to below 400Pa, the needle valve 012 is screwed to make the valve core 0121 of the needle valve 012 close to and block the end of the oxygen bomb gas pipe 013, so as to achieve the sealing inside the oxygen bomb 01. Finally, the oxygen bomb evacuation joint is removed. At this time, the vacuum degree below 400Pa can be maintained in the oxygen bomb 01.

[0064] The air inside the oxygen bomb 01 flows outwards in sequence along the oxygen bomb air pipe 013, the gap between the oxygen bomb head 011 and the lower part of the needle valve 012, the connecting air pipe 0111 and the joint air pipe 11.

[0065] In summary, the present invention meets the vacuum sealing requirement inside the oxygen bomb 01 through the solid needle valve 012; the vacuuming requirement of the oxygen bomb 01 is met through the oxygen bomb joint body 1, the oxygen bomb 011 connected to the air pipe 0111 provided on the side wall, and the assembly relationship between the oxygen bomb 011 and the lower part of the needle valve 012. Compared with the hollow needle valve 012, the oxygen bomb 01 provided by the present invention uses a solid needle valve 012, which has high structural strength, strong corrosion resistance, excellent sealing performance and long service life.

[0066] On the basis of the above embodiment, the oxygen bullet 011 and the needle valve 012 are threadedly connected. In other words, the inner wall of the oxygen bullet 011 is provided with an internal thread, the outer periphery of the needle valve 012 is provided with an external thread, the needle valve 012 is threadedly engaged with the oxygen bullet 011, and the needle valve 012 realizes axial movement relative to the oxygen bullet 011 by rotating clockwise and counterclockwise.

[0067] The projectile used in the present invention may include a cartridge 014 , a cartridge cover 015 sealed at the head of the cartridge 014 , and a core 016 .

[0068] The core 016 is tubular, in other words, the inner wall of the core 016 forms an oxygen bomb gas tube 013, and the oxygen bomb gas tube 013 axially penetrates the core 016. The core 016 is inserted from the center of the bomb cover 015 and communicates with the cavity of the bomb barrel 014. When the oxygen bomb 011 is mounted on the head of the bomb body, the core 016 is coaxially aligned with the needle valve 012, the core 016 is mounted on the lower part of the oxygen bomb 011, and the needle valve 012 is mounted on the upper part of the oxygen bomb 011.

[0069] The middle of the spring cover 015 is provided with a connection hole for the core 016 to penetrate and seal. In this embodiment, the contact surface between the spring cover 015 and the core 016 is sequentially provided with an insulating ceramic ring 018, a plastic insulating pad and an elastic insulating ring 020 from bottom to top.

[0070] In this embodiment, the insulating ceramic ring 018 is close to the interior of the elastic body and is mainly used to withstand high temperature and high pressure environments and resist deformation under high temperature and high pressure environments; the elastic insulating ring 020 is far away from the interior of the elastic body and mainly plays a sealing role. If high temperature and high pressure resistance, corrosion resistance and deformation resistance are defined as the first role, and sealing is defined as the second role, then the first role of the insulating ceramic ring 018 is superior to the first role of the elastic insulating ring 020, and the second role of the elastic insulating ring 020 is due to the second role of the insulating ceramic ring 018.

[0071] The plastic insulating pad is located between the insulating ceramic ring 018 and the elastic insulating ring 020. The first function of the plastic insulating pad is between the insulating ceramic ring 018 and the elastic insulating ring 020, and the second function is also between the insulating ceramic ring 018 and the elastic insulating ring 020. Therefore, the plastic insulating pad plays a good transition between the first function and the second function.

[0072] Among them, a nut 017 is provided between the oxygen warhead 011 and the warhead cover 015 ; a buckle ring 021 is also provided between the warhead barrel 014 and the warhead cover 015 .

[0073] The nut 017 is sleeved on the core 016, and the nut 017 is sealed and connected to the oxygen warhead 011, the core 016 and the bomb cover 015. The upper end of the nut 017 can be provided with an insulating nut 017 sealing ring to seal the oxygen warhead 011, and the lower end of the nut 017 is sealed to the upper end of the bomb cover 015 through the outer insulating gasket 0192 and the insulating sealing ring.

[0074] For reference Figure 4 The plastic insulating pad specifically includes an inner insulating pad 0191 and an outer insulating pad 0192. The inner insulating pad 0191 is aligned and spliced ​​with the insulating ceramic ring 018. The outer insulating pad 0192 is fixed between the spring cover 015 and the nut 017 above the spring cover 015. The elastic insulating ring 020 is set in the gap between the inner insulating pad 0191 and the outer insulating pad 0192.

[0075] In summary, compared with the existing oxygen bomb insulation sealing structure, the oxygen bomb insulation sealing structure formed by the insulating ceramic ring 018, the plastic insulation pad and the elastic insulation ring 020 has better insulation performance, sealing performance and corrosion resistance, and is particularly suitable for the ignition operation of medium and high voltage or AC voltage of the oxygen bomb 01.

[0076] Compared with the plastic insulating pad and the elastic insulating ring 020, the insulating ceramic ring 018 is closer to the internal cavity of the oxygen bomb 01. Therefore, the ring width of the insulating ceramic ring 018 is greater than the ring width of the plastic insulating pad to increase the insulation distance of the insulating ceramic ring 018 and ensure the normal operation of the oxygen bomb 01 when it is powered on and ignited.

[0077] The oxygen bomb 01 provided by the present invention uses an outer insulating pad 0192, an insulating sealing ring, an inner insulating pad 0191, and an insulating ceramic ring 018 to form an insulating structure of the oxygen bomb 01, thereby realizing electrical isolation between the core 016 and the bomb cover 015. When the two electrodes are energized through the core 016 and the bomb cover 015, the current is guided to the crucible stand 023 and the electrode rod 022 inside the oxygen bomb 01, and then the ignition wire is connected through the crucible stand 023 and the electrode rod 022 to realize energized fusing and ignition.

[0078] The oxygen bomb and oxygen bomb exhaust connector provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An oxygen bomb exhaust connector, characterized in that: The invention comprises a joint body (1); a through hole is provided in the middle of the joint body (1) for being fitted and sealingly attached to the outer circumference of an oxygen bomb (011) of an oxygen bomb (01); a joint air pipe (11) is provided on the side wall of the through hole and extends radially and is arranged through the joint; the joint air pipe (11) is used to sequentially communicate with the oxygen bomb air pipe (013) and the connecting air pipe (0111) on the side wall of the oxygen bomb (011) when a needle valve (012) of the oxygen bomb (01) is separated from the oxygen bomb air pipe (013) inside the oxygen bomb (01); The through hole has a first hole wall at the upper part for sealingly fitting the needle valve (012), and a second hole wall at the lower part for sealingly fitting the oxygen bullet (011), the first hole wall and the needle valve (012) are interference fit, and the second hole wall and the oxygen bullet (011) are interference fit; The first hole wall is provided with a first annular groove and a first sealing ring (12) embedded in the first annular groove and used to seal the outer wall of the needle valve (012); the second hole wall is provided with a second annular groove and a second sealing ring (13) embedded in the second annular groove and used to seal the outer wall of the oxygen bomb (011).

2. The oxygen bomb exhaust connector according to claim 1, characterized in that: The joint body (1) comprises a first joint body (101) and a tubular second joint body (102); the joint air pipe (11) comprises a first joint air pipe (111) arranged on the first joint body (101) and a second joint air pipe (112) arranged on the second joint body (102); The first joint body (101) is used to mount an oxygen warhead (011), and the second joint body (102) is inserted and sealed to the first joint air pipe (111).

3. The oxygen bomb exhaust connector according to claim 2, characterized in that: The outer wall of the second joint body (102) is threadedly connected to the first joint air pipe (111), and a third sealing ring (14) is provided between the contact surfaces of the two.

4. An oxygen bomb, characterized in that: The oxygen bomb exhaust connector according to any one of claims 1 to 3 is used for vacuuming, comprising a bomb body with an oxygen bomb gas pipe (013) at the head, an oxygen bomb head (011) mounted on the bomb body head, and a needle valve (012) inserted on the upper part of the oxygen bomb head (011) for blocking and opening the oxygen bomb gas pipe (013); The needle valve (012) is a solid structure; the outer diameter of the lower part of the needle valve (012) is smaller than the inner diameter of the oxygen bomb (011); the upper part of the needle valve (012) is interference fitted on the oxygen bomb (011); The side wall of the oxygen warhead (011) is provided with a radially penetrating connecting air pipe (0111).

5. The oxygen bomb according to claim 4, characterized in that The oxygen bomb (011) and the needle valve (012) are threadedly connected.

6. The oxygen bomb according to claim 4 or 5, characterized in that The bomb body comprises a bomb barrel (014), a bomb cover (015) sealed at the head of the bomb barrel (014), and a core body (016); the oxygen bomb gas pipe (013) is axially penetrated inside the core body (016); the core body (016) is inserted from the center of the bomb cover (015) and communicated with the cavity of the bomb barrel (014); An insulating ceramic ring (018), a plastic insulating pad and an elastic insulating ring (020) are sequentially mounted between the contact surface of the elastic cover (015) and the core body (016) from bottom to top.

7. The oxygen bomb according to claim 6, characterized in that A nut (017) is provided between the oxygen warhead (011) and the bomb cover (015); the nut (017) is sleeved on the core body (016); the nut (017) is sealedly connected to the oxygen warhead (011), the core body (016) and the bomb cover (015).

8. The oxygen bomb according to claim 7, characterized in that The ring width of the insulating ceramic ring (018) is greater than the ring width of the plastic insulating pad.

Images