Safety type carbon dioxide protection welding machine

By introducing multifunctional support components and transparent protective box into the carbon dioxide protective welding machine, the problems of light and heat and harmful gases during the welding process are solved, welding efficiency and safety are improved, and the stability of the welding environment is ensured.

CN119304326AInactive Publication Date: 2025-01-14HUIZHOU DINGTIAN HARDWARE PRODUCTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411791172.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-01-14
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure CN119304326A_ABST
    Figure CN119304326A_ABST
Patent Text Reader

Abstract

The invention discloses a safety type carbon dioxide protection welding machine, and relates to the field of carbon dioxide protection welding machines. The device comprises a welding machine body, the front end of the welding machine body is fixedly connected with a welding gun, the front end of the welding gun is provided with a multifunctional protection mechanism, the multifunctional protection mechanism comprises a multifunctional supporting assembly and a welding protection cover body, the multifunctional supporting assembly comprises an adjusting inner plate, a supporting outer plate and a gas absorption part, and the adjusting inner plate is slidably connected into the supporting outer plate; the gas absorption part is fixedly connected to the bottom of the supporting outer plate, the welding protection cover body comprises a transparent protection box body and a rotating sector plate, and the rotating sector plate is rotationally connected into the transparent protection box body. According to the device, the welding efficiency is improved, scraps generated by welding cannot be diffused, the potential safety hazard of high-heat scraps to welders is reduced, the potential safety hazard that the welders inhale harmful gas to harm the body health due to the fact that waste gas cannot be diffused is reduced, the influence of the external environment on welding is resisted, and the generated light cannot burn eyes due to the anti-glare plate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of carbon dioxide shielded welding machines, in particular to a safe carbon dioxide shielded welding machine. Background Art

[0002] The safe carbon dioxide shielded welding machine is an efficient and energy-saving welding equipment. The principle of the carbon dioxide shielded welding machine is to use carbon dioxide gas as a protective medium to form a protective layer during the welding process to prevent harmful gases such as oxygen and nitrogen in the air from polluting and oxidizing the weld. At the same time, the high-energy arc generated by the welding power source melts the welding wire and the workpiece to form a weld. Due to the cooling effect of carbon dioxide gas, welding deformation and internal stress can also be reduced.

[0003] When the existing carbon dioxide shielded welding machine is in use, the welding gun will generate a large amount of light, heat and harmful gases at the welding point, which makes it easy for welders to inhale harmful gases during processing. At the same time, the strong light will burn the eyes, and the hot slag generated will also splash everywhere, affecting the welder's processing. In addition, since the carbon dioxide shielded welding machine requires a large amount of carbon dioxide gas environment at the welding point, the processing environment must be windless. When there is wind, the carbon dioxide gas environment will fail, resulting in poor welding effect or even failure. In addition, when welding at the gap between two metal plates, it is easy to have problems such as inability to align the weld and long-term lifting causing sore hands of the welder. In view of the above situation, the present invention provides a safe carbon dioxide shielded welding machine to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a safe carbon dioxide shielded welding machine, which solves the problem that the existing carbon dioxide shielded welding machine will generate a large amount of light, heat and harmful gases at the welding point due to the welding gun when in use, which makes it easy for welders to inhale harmful gases during processing. At the same time, the strong light will burn the eyes, and the hot slag generated will also splash everywhere, affecting the welder's processing. In addition, since the carbon dioxide shielded welding machine requires a large amount of carbon dioxide gas environment at the welding point, the processing environment must be windless. When there is wind, the carbon dioxide gas environment will fail, resulting in poor welding effect or even failure. In addition, when welding at the gap between two metal plates, it is easy to have problems such as inability to align the weld and long-term lifting causing sore hands of the welder.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a safe carbon dioxide shielded welding machine, including a welding machine body, a welding gun is fixedly connected to the front end of the welding machine body, a multifunctional protection mechanism is arranged at the front end of the welding gun, the multifunctional protection mechanism includes a multifunctional support assembly and a welding protection cover body, the welding protection cover body is arranged at the front end of the multifunctional support assembly, wherein the multifunctional support assembly includes an adjusting inner plate, a supporting outer plate and a gas absorber, the adjusting inner plate is slidably connected in the supporting outer plate, the gas absorber is fixedly connected to the bottom of the supporting outer plate, wherein the welding protection cover body includes a transparent protection box body and a rotating fan plate, and the rotating fan plate is rotatably connected in the transparent protection box body.

[0006] Preferably, the welding machine body includes a protective casing, an air intake filter box, a portable handle and anti-collision corner pieces, the air intake filter box is fixedly connected to one end of the protective casing, the portable handle is fixedly connected to the top of the protective casing, and the anti-collision corner pieces are fixedly connected to the bottom of the protective casing.

[0007] Preferably, the welding gun includes a welding gun body and a pipeline system, one end of the pipeline system is fixedly connected to the welding gun body, the other end of the pipeline system is fixedly connected to the front end of the welding machine body, the front end of the welding gun body is fixedly connected with a welding nozzle, and the welding nozzle is fixedly connected with a fixed sleeve.

[0008] Preferably, the adjustable inner plate is slidably connected to the fixed sleeve, both ends of the adjustable inner plate are fixedly connected to fixed long arms, a through hole is provided in the fixed long arm, and both ends of the fixed long arm are fixedly connected to adjustment baffles.

[0009] Preferably, both ends of the supporting outer plate are fixedly connected with fixed arm blocks, a sliding hole is opened in the fixed arm block, the fixed long arm is slidably connected in the sliding hole, the outer end of the fixed long arm is fixedly connected with a supporting slider, and the top of the supporting outer plate is fixedly connected with an anti-glare plate.

[0010] Preferably, a suction nozzle and a suction bent rigid tube are provided at the top of the gas absorber, one end of the suction bent rigid tube is fixedly connected in the suction nozzle, the other end of the suction bent rigid tube is fixedly connected in the gas absorber, the suction bent rigid tube is arranged in a through hole, and a gas outlet is opened at the bottom of the gas absorber.

[0011] Preferably, an adjustment rod is fixedly connected to the back of the transparent protective box, and the adjustment rod is slidably connected in the through hole. Transparent baffles are fixedly connected at the upper and lower ends of the transparent protective box, and a limit plate is fixedly connected inside the transparent protective box. A rotating hole and a rotating groove are provided in the transparent baffle, and rotating inner grooves are provided on the upper and lower sides of the transparent baffle.

[0012] Preferably, a rotating rod is fixedly connected inside the rotating fan plate, a rotating slider is fixedly connected to the bottom of the rotating fan plate, a flexible tinfoil wall is fixedly connected inside the rotating fan plate, the other end of the tinfoil wall is fixedly connected to the limit plate, a connecting block is fixedly connected to the top of the rotating fan plate, a rotating inner sliding rod is fixedly connected inside the connecting block, a spring is arranged outside the rotating inner sliding rod, a soft gasket is fixedly connected to the top of the connecting block, and the other end of the soft gasket is fixedly connected to the outer end of the transparent baffle.

[0013] Preferably, the rotating rod is rotatably connected in the rotating hole, the rotating slider is slidably connected in the rotating groove, and the rotating inner slider is slidably connected in the rotating inner groove.

[0014] The invention discloses a safe carbon dioxide shielded welding machine, which has the following beneficial effects: 1. This type of safe carbon dioxide shielded welding machine, through the establishment of a multi-functional support component, can support the support slider on the metal plate when welding at the gap between two metal plates, so that part of the weight of the welding gun is against the multi-functional support component during welding, and the welder does not need to spend too much effort to support the welding gun. At the same time, by sliding on the support outer plate, the welder can use advanced welding methods such as the crescent welding method, so that the welding effect is better and the welding efficiency is increased, and poor welding effect due to arm shaking or lack of strength will not occur.

[0015] 2. This type of safe carbon dioxide shielded welding machine, by setting up a transparent protective box, prevents the slag generated during welding from spreading on a large scale, and can only gather around the transparent protective box, reducing the safety hazard of high-temperature slag to welders. At the same time, the anti-glare plate prevents the generated light from burning the eyes, so that welders do not need to hold the filter mask with their other hand when welding.

[0016] 3. This type of safe carbon dioxide shielded welding machine can also gather exhaust gas by setting up a transparent protective box, so that the exhaust gas cannot spread on a large scale, causing the hidden danger of welders inhaling harmful gases and endangering their health. At the same time, it can resist the influence of the external environment on welding, such as the influence of wind on the welding point, making the welding process more stable. At the same time, a gas absorber is set on the back of the transparent protective box, so that the slowly diffused toxic gas can be absorbed and stored waiting for the next step of waste treatment, preventing the environment from being polluted by toxic gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall front structure of the present invention; Figure 2 It is a schematic diagram of the overall side structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of the welding gun of the present invention; Figure 4 It is a schematic diagram of the overall structure of the multifunctional protection mechanism of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the multifunctional support assembly of the present invention; Figure 6 This is a schematic diagram of the back structure of the multifunctional support assembly of the present invention; Figure 7 It is a schematic diagram of the overall structure of the multifunctional protection mechanism of the present invention; Figure 8 This is a schematic diagram of the overall structure of the transparent protective box of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the rotating fan plate of the present invention.

[0019] In the figure: 1. welding machine body; 11. protective housing; 12. air suction filter box; 13. portable handle; 14. anti-collision corner piece; 2. welding gun; 21. welding gun body; 211. welding nozzle; 212. fixed sleeve; 22. pipeline system; 3. multi-functional protection mechanism; 31. multi-functional support assembly; 311. adjusting inner plate; 3111. fixing long arm; 3112. through hole; 3113. adjusting baffle; 312. supporting outer plate; 3121. fixing arm block; 3122. sliding hole; 3123. supporting slide block; 3124. anti-glare plate; 313 , gas absorber; 3131, suction nozzle; 3132, suction bent hard pipe; 3133, gas output port; 32, welding protection cover; 321, transparent protection box; 3211, adjustment rod; 3212, transparent baffle; 3213, limit plate; 3214, rotating hole; 3215, rotating groove; 3216, rotating inner groove; 322, rotating fan plate; 3221, rotating rod; 3222, rotating slider; 3223, tin foil wall; 3224, connecting block; 3225, rotating inner slide rod; 3226, spring; 3227, soft gasket. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are 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.

[0021] The embodiment of the present application provides a safe carbon dioxide shielded welding machine, which solves the problem that the existing carbon dioxide shielded welding machine will generate a large amount of light, heat and harmful gases at the welding point when in use, which makes it easy for welders to inhale harmful gases during processing. At the same time, the strong light will burn the eyes, and the hot slag generated will also splash everywhere, affecting the welder's processing. In addition, since the carbon dioxide shielded welding machine requires a large amount of carbon dioxide gas environment at the welding point, the processing environment must be windless. When there is wind, the carbon dioxide gas environment will fail, resulting in poor welding results or even failure. In addition, when welding at the gap between two metal plates, it is easy to have problems such as inability to align the weld and long-term lifting causing sore hands of the welder.

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The embodiment of the invention discloses a safe carbon dioxide shielded welding machine.

[0024] According to the attached Figure 1-9 As shown, It includes a welding machine body 1, a welding gun 2 is fixedly connected to the front end of the welding machine body 1, a multifunctional protective mechanism 3 is arranged at the front end of the welding gun 2, the multifunctional protective mechanism 3 includes a multifunctional support assembly 31 and a welding protection cover 32, the welding protection cover 32 is arranged at the front end of the multifunctional support assembly 31, wherein the multifunctional support assembly 31 includes an adjustable inner plate 311, a supporting outer plate 312 and a gas absorber 313, the adjusting inner plate 311 is slidably connected in the supporting outer plate 312, the gas absorber 313 is fixedly connected to the bottom of the supporting outer plate 312, wherein the welding protection cover 32 includes a transparent protection box 321 and a rotating fan plate 322, the rotating fan plate 322 is rotatably connected in the transparent protection box 321, when in use, the multifunctional support assembly 31 is pressed against the plate, and welding is performed from top to bottom, at this time, the welding protection cover 32 is pressed against the wall, and the rotating fan plate 322 and the transparent protection box 321 form a protective cover to protect the welding point.

[0025] The welding machine body 1 includes a protective casing 11, an air suction filter box 12, a portable handle 13 and anti-collision corner pieces 14. The air suction filter box 12 is fixedly connected to one end of the protective casing 11, the portable handle 13 is fixedly connected to the top of the protective casing 11, and the anti-collision corner pieces 14 are fixedly connected to the bottom of the protective casing 11. The welding gun 2 includes a welding gun body 21 and a pipeline system 22. One end of the pipeline system 22 is fixedly connected to the welding gun body 21, and the other end of the pipeline system 22 is fixedly connected to the front end of the welding machine body 1. A welding nozzle 211 is fixedly connected to the front end of the welding gun body 21, and a fixed sleeve 212 is fixedly connected to the welding nozzle 211. The air suction filter box 12 is used for inhaling and storing harmful gases to prevent the diffusion of harmful gases. The anti-collision corner pieces 14 are used to protect the welding machine body 1 from impact damage. The fixed sleeve 212 is used to fix the multi-functional support assembly 31 and the welding protection cover body 32.

[0026] The adjusting inner plate 311 is slidably connected to the fixed sleeve 212, and the two ends of the adjusting inner plate 311 are fixedly connected with fixed long arms 3111, and a through hole 3112 is opened in the fixed long arm 3111, and the two ends of the fixed long arm 3111 are fixedly connected with adjustment baffles 3113, and the two ends of the supporting outer plate 312 are fixedly connected with fixed arm blocks 3121, and a sliding hole 3122 is opened in the fixed arm block 3121, and the fixed long arm 3111 is slidably connected in the sliding hole 3122, and the outer end of the fixed long arm 3111 is fixedly connected with a supporting slider 3123, and the top of the supporting outer plate 312 is fixedly connected with an anti-glare plate 3124, and a suction nozzle 313 is provided at the top of the gas absorber 313. 1 and an air intake bent rigid tube 3132, one end of the air intake bent rigid tube 3132 is fixedly connected in the suction nozzle 3131, the other end of the air intake bent rigid tube 3132 is fixedly connected in the gas absorber 313, the air intake bent rigid tube 3132 is arranged in the through hole 3112, a gas outlet 3133 is provided at the bottom end of the gas absorber 313, the adjusting inner plate 311 slides in the supporting outer plate 312, the supporting slider 3123 is used for supporting and sliding on the plate, the sliding hole 3122 is used for passing other components, the anti-glare plate 3124 is used to prevent the strong light generated during welding from damaging the human eyes, and the gas absorber 313 is used to absorb harmful gases into the air intake filter box 12.

[0027] The back of the transparent protective box 321 is fixedly connected with an adjustment rod 3211, which is slidably connected in the through hole 3112. The upper and lower ends of the transparent protective box 321 are fixedly connected with transparent baffles 3212. The transparent protective box 321 is fixedly connected with a limit plate 3213. The transparent baffle 3212 is provided with a rotation hole 3214 and a rotation groove 3215. The upper and lower sides of the transparent baffle 3212 are provided with a rotation inner groove 3216. The rotating fan plate 322 is fixedly connected with a rotation hole 3214 and a rotation groove 3215. Rod 3221, the bottom of the rotating fan plate 322 is fixedly connected with a rotating slider 3222, the rotating fan plate 322 is fixedly connected with a flexible tin foil wall 3223, the other end of the tin foil wall 3223 is fixedly connected to the limit plate 3213, the top of the rotating fan plate 322 is fixedly connected with a connecting block 3224, the connecting block 3224 is fixedly connected with a rotating inner slide rod 3225, the rotating inner slide rod 3225 is provided with a spring 3226, and the top of the connecting block 3224 is fixedly connected with a soft gasket 3227, the other end of the soft gasket 3227 is fixedly connected to the outer end of the transparent baffle 3212, the rotating rod 3221 is rotatably connected in the rotating hole 3214, the rotating slider 3222 is slidably connected in the rotating groove 3215, and the rotating inner sliding rod 3225 is slidably connected in the rotating inner groove 3216. The rotating fan plates 322 at both ends present a vertically symmetrical structure in the transparent protective box 321, the rotating slider 3222 of the right rotating fan plate 322 is at the lower end, and the rotating slider 3222 of the left rotating fan plate 322 is at the lower end. The movable slider 3222 is at the lower end, and the tin foil wall 3223 and the soft gasket 3227 are responsible for blocking the gap between the rotating fan plate 322 and the transparent protective box 321 without affecting the rotation of the rotating fan plate 322. The transparency of the transparent protective box 321 makes it possible to clearly see the condition of the welding position during welding. The establishment of the spring 3226 allows the rotating fan plate 322 to remain popped outward, and will shrink and offset when encountering the plate body, and can be reset when leaving the plate body without manual adjustment.

[0028] In summary, compared with the prior art, the present invention has the following beneficial effects: This type of safe carbon dioxide shielded welding machine, through the establishment of a multifunctional support component 31, can make it possible to support the support slider 3123 on the metal plate when welding at the gap between two metal plates, so that a part of the weight of the welding gun 2 is against the multifunctional support component 31 during welding, and the welder does not need to spend too much effort to support the welding gun 2. At the same time, by sliding on the support outer plate 312, the welder can use advanced welding methods such as the crescent welding method, so that the welding effect is better and the welding efficiency is increased, and there will be no poor welding effect due to arm shaking or lack of strength. This type of safe carbon dioxide shielded welding machine, through the establishment of a transparent protective box 321, prevents the slag generated during welding from spreading on a large scale and can only gather in The transparent protective box 321 is surrounded to reduce the potential safety hazard to welders caused by high-temperature chips and slag. At the same time, the anti-glare plate 3124 prevents the generated light from burning the eyes, so that the welder does not need to hold the filter mask with the other hand when welding. This safe carbon dioxide shielded welding machine can also gather exhaust gas by setting up the transparent protective box 321, so that the exhaust gas cannot spread on a large scale and cause the welder to inhale harmful gases and endanger their health. At the same time, it can resist the influence of the external environment on welding, such as the influence of wind on the welding point, so that the welding process is more stable. At the same time, a gas absorber 313 is set on the back of the transparent protective box 321, so that the slowly diffused toxic gas can be absorbed and stored and wait for the next step of waste treatment, so as to prevent the environment from being polluted by toxic gases.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A safe carbon dioxide shielded welding machine, comprising a welding machine body (1), wherein a welding gun (2) is fixedly connected to the front end of the welding machine body (1), characterized in that: A multifunctional protective mechanism (3) is provided at the front end of the welding gun (2), the multifunctional protective mechanism (3) comprising a multifunctional support assembly (31) and a welding protective cover body (32), the welding protective cover body (32) being provided at the front end of the multifunctional support assembly (31); Wherein, the multifunctional support assembly (31) comprises an adjusting inner plate (311), a supporting outer plate (312) and a gas absorber (313); The regulating inner plate (311) is slidably connected inside the supporting outer plate (312), and the gas absorber (313) is fixedly connected to the bottom of the supporting outer plate (312); The welding protection cover (32) comprises a transparent protection box (321) and a rotating fan plate (322); the rotating fan plate (322) is rotatably connected inside the transparent protection box (321).

2. A safe carbon dioxide shielded welding machine according to claim 1, characterized in that: The welding machine body (1) comprises a protective casing (11), an air suction filter box (12), a portable handle (13) and anti-collision corner pieces (14); The air intake filter box (12) is fixedly connected to one end of the protective casing (11), the portable handle (13) is fixedly connected to the top of the protective casing (11), and the anti-collision corner piece (14) is fixedly connected to the bottom of the protective casing (11).

3. A safe carbon dioxide shielded welding machine according to claim 1, characterized in that: The welding gun (2) comprises a welding gun body (21) and a pipeline system (22); one end of the pipeline system (22) is fixedly connected to the welding gun body (21); the other end of the pipeline system (22) is fixedly connected to the front end of the welding machine body (1); a welding nozzle (211) is fixedly connected to the front end of the welding gun body (21); and a fixed sleeve (212) is fixedly connected to the welding nozzle (211).

4. A safe carbon dioxide shielded welding machine according to claim 2, characterized in that: The adjustable inner plate (311) is slidably connected to the fixed sleeve (212), and fixed long arms (3111) are fixedly connected at both ends of the adjustable inner plate (311), a through hole (3112) is provided in the fixed long arm (3111), and adjustment baffles (3113) are fixedly connected at both ends of the fixed long arm (3111).

5. A safe carbon dioxide shielded welding machine according to claim 4, characterized in that: The two ends of the support outer plate (312) are fixedly connected to fixed arm blocks (3121), a sliding hole (3122) is provided in the fixed arm block (3121), the fixed long arm (3111) is slidably connected in the sliding hole (3122), the outer end of the fixed long arm (3111) is fixedly connected to a support sliding block (3123), and the top end of the support outer plate (312) is fixedly connected to an anti-glare plate (3124).

6. A safe carbon dioxide shielded welding machine according to claim 5, characterized in that: The top end of the gas absorber (313) is provided with a suction nozzle (3131) and a suction bent hard tube (3132); one end of the suction bent hard tube (3132) is fixedly connected in the suction nozzle (3131); the other end of the suction bent hard tube (3132) is fixedly connected in the gas absorber (313); the suction bent hard tube (3132) is arranged in a through hole (3112); and a gas output port (3133) is provided at the bottom end of the gas absorber (313).

7. A safe carbon dioxide shielded welding machine according to claim 4, characterized in that: The back of the transparent protective box (321) is fixedly connected to an adjustment rod (3211), the adjustment rod (3211) is slidably connected in the through hole (3112), the upper and lower ends of the transparent protective box (321) are fixedly connected to transparent baffles (3212), the transparent protective box (321) is fixedly connected to a limit plate (3213) in the transparent protective box (321), a rotation hole (3214) and a rotation groove (3215) are provided in the transparent baffle (3212), and rotation inner grooves (3216) are provided on both the upper and lower sides of the transparent baffle (3212).

8. A safe carbon dioxide shielded welding machine according to claim 7, characterized in that: The rotating fan plate (322) is fixedly connected with a rotating rod (3221) inside, the bottom of the rotating fan plate (322) is fixedly connected with a rotating sliding block (3222), the rotating fan plate (322) is fixedly connected with a flexible tin foil wall (3223) inside, the other end of the tin foil wall (3223) is fixedly connected to a limit plate (3213), the top of the rotating fan plate (322) is fixedly connected with a connecting block (3224), the connecting block (3224) is fixedly connected with a rotating inner sliding rod (3225), a spring (3226) is arranged outside the rotating inner sliding rod (3225), the top of the connecting block (3224) is fixedly connected with a soft gasket (3227), the other end of the soft gasket (3227) is fixedly connected to the outer end of the transparent baffle (3212).

9. A safe carbon dioxide shielded welding machine according to claim 8, characterized in that: The rotating rod (3221) is rotatably connected in the rotating hole (3214), the rotating slider (3222) is slidably connected in the rotating groove (3215), and the rotating inner sliding rod (3225) is slidably connected in the rotating inner groove (3216).