Safe dry acetylene generator

Abstract

The present invention relates to the technical field of chemical equipment, and specifically discloses a safe dry acetylene generator, including a generator body, a safety mechanism is arranged on the outside of the generator body, and a pressing mechanism is arranged on the outside of the generator body. The present invention is provided with a safety mechanism, when the internal air pressure of the generator body gradually increases, the traction rope can pull the bell to shake, and then the bell will produce a sound, which is convenient for issuing an early warning to remind the staff, so that when the air pressure inside the generator is too high, the air pressure detection sensor has problems and cannot well remind the staff, thereby increasing safety; through the setting of the pressing mechanism, the internal gas of the connection box can be squeezed on the pressing plate, so that it is convenient for the gas in the intake pipe to be discharged, the first piston is convenient for better downward movement, and the internal air pressure of the generator body is convenient for discharge, which once again increases safety.

Description

Technical Field

[0001] The invention relates to the technical field of chemical equipment, in particular to a safe dry acetylene generating device. Background Art

[0002] Acetylene is an organic compound with the chemical formula C2H2, commonly known as wind coal or calcium carbide gas. It is the smallest member of the alkyne compounds and is a colorless gas at room temperature and pressure. It is slightly soluble in water, soluble in ethanol, acetone, chloroform, benzene, and miscible in ether. It is one of the important raw materials for organic synthesis and a monomer for synthetic rubber, synthetic fiber and plastic. It can also be used for oxyacetylene welding and cutting. For example, patent announcement number CN107488097A, the current dry acetylene generator already exists, but the dry acetylene generator will generate high pressure when in use, so there are safety hazards. There are also ways to install air pressure detection sensors inside for easy monitoring, but due to the use of electronic equipment, when the electronic equipment is damaged, it will cause non-standard detection, or the detection sensor will have problems and cannot be discovered in time, and the internal air pressure will gradually increase, which will lead to safety risks, and thus a mechanized device is needed to ensure safety again. Summary of the invention

[0003] The purpose of the present invention is to provide a safe dry acetylene generating device, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a safe dry acetylene generator, comprising a generator body, a safety mechanism is arranged on the outside of the generator body, and a pressing mechanism is arranged on the outside of the generator body; the safety mechanism comprises a fixed box, a connecting air pipe is fixedly sleeved on the top of the fixed box, the other end of the connecting air pipe is communicated with the inside of the generator body, a limiting ring is fixedly connected to the top of the inner wall of the fixed box, a first piston is sealingly and slidably connected to the inner wall of the fixed box, a sliding rod is fixedly connected to the bottom of the first piston, the bottom of the sliding rod passes through the bottom of the fixed box and extends to the outside of the bottom of the fixed box, an insulation box is fixedly connected to the bottom of the fixed box, the bottom end of the sliding rod is located inside the insulation box, the bottom end of the sliding rod is fixedly connected to the second piston, the outer wall of the second piston is slidably connected to the inner wall of the insulation box, a connecting pipe is fixedly sleeved on the bottom of the insulation box, the bottom end of the connecting pipe is fixedly sleeved on the air inlet pipe, one end of the air inlet pipe is fixedly sleeved on the valve, The top of the outer cover is fixedly connected to the outer cover of the gas outlet box, and the bottom of the outer cover is fixedly connected to the outer cover of the gas outlet box.

[0005] Furthermore, the sliding rod, the second piston, the heat preservation box, and the connecting pipe are all in two pieces, and are mirror-symmetrical about the center point of the fixed box.

[0006] Furthermore, when the top of the first piston contacts the bottom of the limiting ring, the end of the exhaust pipe close to the fixed box is located in the middle of the side where the first piston and the inner wall of the bottom of the fixed box are close to each other.

[0007] Furthermore, two ends of the first support rod are fixedly connected to the central axes of the two sides of the round box close to each other, and there are six knocking plates, which are arranged in a circular equidistant array around the central axis of the first support rod.

[0008] Further, the pressing mechanism includes a connecting block, one side of the connecting block is fixedly connected to the outer wall of the generating device body, the connecting block is fixedly connected to a connecting box on a side away from the air intake pipe, one end of the connecting box close to the air intake pipe is fixedly sleeved with the other end of the air intake pipe, the connecting box is fixedly connected to a rubber pad on a side away from the air intake pipe, the outer wall of the connecting box is fixedly connected to a supporting block, the end of the support block away from the air intake pipe is fixedly connected to a fixing rod, the end of the fixing rod away from the support block is fixedly connected to a supporting plate, the interior of the support plate is fixedly sleeved with a threaded tube, the inner wall of the threaded tube is threadedly connected with a threaded rod, the end of the threaded rod away from the connecting box is fixedly connected to a knob, the end of the threaded rod close to the connecting box is rotatably connected to a sliding block, the outer wall of the sliding block is slidably connected to the outer wall of the fixing rod, the side of the sliding block away from the threaded rod is fixedly connected to a tension spring, and the side of the tension spring away from the sliding block is fixedly connected to a pressing plate.

[0009] Furthermore, there are four support blocks and four fixing rods, and the four support blocks are fixedly connected to the four outer sides of the connection box respectively, and the four outer sides of the sliding block and the pressing plate are slidably connected to the outer walls of the four fixing rods that are close to each other.

[0010] Furthermore, there are four tension springs, which are respectively fixedly connected to four corners of a side where the sliding block and the pressing plate are close to each other.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: through the safety mechanism, by pumping air pressure greater than that inside the generator body into the intake pipe, the first piston is located above the exhaust pipe inside the fixed box. When the air pressure inside the generator body gradually increases, the first piston will move downward until it is below the exhaust pipe. Therefore, the gas inside the generator body will enter the inside of the fixed box and be discharged outward through the exhaust pipe. At the same time, when the exhaust pipe is discharging the gas inside the generator body, the gas inside the exhaust pipe will blow the knocking plate. Therefore, multiple knocking plates will rotate around the central axis of the first support rod, and then the knocking plate will knock the knocked plate. Therefore, the second sleeve will swing around the central axis of the second support rod, which will cause the fixed bar to pull the traction rope, and the traction rope can pull the bell to swing, so the bell The clang will produce a sound, which is convenient for issuing an early warning to remind the staff. Therefore, it can be avoided that when the air pressure inside the device is too high, there will be problems with the air pressure detection sensor, which will cause the staff to be unable to be reminded well, thereby increasing safety. Through the setting of the pressing mechanism, the connecting box can be blocked by the pressing plate, and the rubber pad can be used to increase the sealing, thereby avoiding the discharge of gas inside the intake pipe, and the threaded tube drives the rotation of the threaded rod, thereby facilitating the pressing of the tension spring to increase the elastic potential energy, thereby avoiding the discharge of gas inside the intake pipe. When the first piston moves downward, the air pressure inside the intake pipe will gradually increase, and the gas inside the connecting box will squeeze the pressing plate, thereby facilitating the discharge of gas from the intake pipe, facilitating the better downward movement of the first piston, and facilitating the discharge of air pressure inside the device body, thereby increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0013] Figure 1 It is a front view three-dimensional structural schematic diagram of the safe dry acetylene generating device of the present invention;

[0014] Figure 2 It is a side view three-dimensional structure schematic diagram of the safe dry acetylene generating device of the present invention;

[0015] Figure 3 The invention provides a safe dry acetylene generating device Figure 2 Schematic diagram of the three-dimensional structure enlarged at A in the middle;

[0016] Figure 4 A schematic diagram of the three-dimensional structure of the safe dry acetylene generating device of the present invention from a side view;

[0017] Figure 5 The invention provides a safe dry acetylene generating device Figure 4Enlarged schematic diagram of the three-dimensional structure at point B in the middle.

[0018] In the figure:

[0019] 1. Generator body;

[0020] 2. Safety mechanism; 21. Connecting air pipe; 22. Fixed box; 23. Limiting ring; 24. First piston; 25. Sliding rod; 26. Second piston; 27. Insulation box; 28. Connecting pipe; 29. ​​Inlet pipe; 210. Exhaust pipe; 211. Round box; 212. Fixed block; 213. Exhaust box; 214. First support rod; 215. First sleeve; 216. Knocking plate; 217. Second support rod; 218. Second sleeve; 219. Knocking plate; 220. Fixed strip; 221. Towing rope; 222. Protective cover; 223. Bell;

[0021] 3. Pressing mechanism; 31. Connecting box; 32. Rubber pad; 33. Support block; 34. Fixing rod; 35. Threaded tube; 36. Threaded rod; 37. Knob; 38. Sliding block; 39. Tension spring; 310. Pressing plate; 311. Connecting block; 312. Support plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] See also Figure 1-5The present invention provides a technical solution: a safe dry acetylene generator, comprising a generator body 1, a safety mechanism 2 is arranged outside the generator body 1, and a pressing mechanism 3 is arranged outside the generator body 1; the safety mechanism 2 comprises a fixed box 22, a connecting air pipe 21 is fixedly sleeved on the top of the fixed box 22, the other end of the connecting air pipe 21 is connected to the inside of the generator body 1, a limiting ring 23 is fixedly connected to the top of the inner wall of the fixed box 22, a first piston 24 is sealingly and slidably connected to the inner wall of the fixed box 22, a sliding rod 25 is fixedly connected to the bottom of the first piston 24, and the sliding rod The bottom end of the sliding rod 25 passes through the bottom of the fixed box 22 and extends to the outside of the bottom of the fixed box 22. The bottom of the fixed box 22 is fixedly connected with an insulation box 27. The bottom end of the sliding rod 25 is located inside the insulation box 27. The bottom end of the sliding rod 25 is fixedly connected with a second piston 26. The outer wall of the second piston 26 is slidably connected to the inner wall of the insulation box 27. The bottom of the insulation box 27 is fixedly sleeved with a connecting pipe 28. The bottom end of the connecting pipe 28 is fixedly sleeved with an intake pipe 29. One end of the intake pipe 29 is fixedly sleeved with a valve. One side of the fixed box 22 is fixedly sleeved with an exhaust pipe 210. The fixed box 22 is close to the exhaust pipe 210. One end of the round box 211 is fixedly connected to a fixed block 212, and one end of the fixed block 212 away from the fixed box 22 is fixedly connected to the round box 211. One end of the exhaust pipe 210 away from the fixed box 22 is fixedly sleeved with the bottom of the round box 211, and the top of the round box 211 is fixedly sleeved with an outlet box 213. A first support rod 214 is fixedly connected between the inner walls of both sides of the round box 211, and a first sleeve 215 is rotatably connected to the outer wall of the first support rod 214. A knocking plate 216 is fixedly connected to the outer wall of the first sleeve 215. A second support rod 217 is fixedly connected between the inner walls of both sides of the outlet box 213. The outer wall of 7 is rotatably connected to the second sleeve 218, the outer wall bottom wall of the second sleeve 218 is fixedly connected to the knocking plate 219, the outer wall top of the second sleeve 218 is fixedly connected to the fixing bar 220, the back outer wall of the air outlet box 213 is fixedly connected to the protective cover 222, the side of the fixing bar 220 close to the protective cover 222 is fixedly connected to the traction rope 221, the other end of the traction rope 221 passes through the side of the air outlet box 213 close to the protective cover 222 and extends to the inside of the protective cover 222, the other end of the traction rope 221 is fixedly connected to the bell 223, and the bell 223 is located inside the protective cover 222.

[0024] There are two sliding rods 25, second pistons 26, insulation boxes 27, and connecting pipes 28, and they are mirror-symmetrical with respect to the center point of the fixed box 22. When the top of the first piston 24 contacts the bottom of the limit ring 23, the end of the exhaust pipe 210 close to the fixed box 22 is located in the middle of the side where the first piston 24 and the bottom inner wall of the fixed box 22 are close to each other. The two ends of the first support rod 214 are fixedly connected to the central axes of the two sides of the round box 211 close to each other. There are six knocking plates 216, and they are arranged in a circular equidistant array around the center axis of the first support rod 214.

[0025] Through the safety mechanism 2, by pumping an air pressure greater than that inside the generator body 1 into the air inlet pipe 29, the first piston 24 is located above the exhaust pipe 210 inside the fixed box 22. When the air pressure inside the generator body 1 gradually increases, the first piston 24 will move downward until it is below the exhaust pipe 210. Therefore, the internal gas of the generator body 1 will enter the fixed box 22 and be discharged to the outside through the exhaust pipe 210. At the same time, when the exhaust pipe 210 discharges the internal gas of the generator body 1, the internal gas of the exhaust pipe 210 will hit the knocking device. The plate 216 is blown, so the multiple knocking plates 216 will rotate with the central axis of the first support rod 214, and then the knocking plate 216 will knock the knocked plate 219, so the second sleeve 218 will slide with the central axis of the second support rod 217, and then the fixing bar 220 will pull the traction rope 221, and the traction rope 221 can pull the bell 223 to shake, so the bell 223 will produce a sound, and then it is convenient to issue an early warning to remind the staff, so it can avoid the situation that when the air pressure inside the device is too high, the air pressure detection sensor has problems and cannot well remind the staff, thereby increasing safety.

[0026] The pressing mechanism 3 includes a connecting block 311, one side of the connecting block 311 is fixedly connected to the outer wall of the generating device body 1, the side of the connecting block 311 away from the air inlet pipe 29 is fixedly connected to a connecting box 31, one end of the connecting box 31 close to the air inlet pipe 29 is fixedly sleeved with the other end of the air inlet pipe 29, the side of the connecting box 31 away from the air inlet pipe 29 is fixedly connected to a rubber pad 32, the outer wall of the connecting box 31 is fixedly connected to a supporting block 33, the end of the supporting block 33 away from the air inlet pipe 29 is fixedly connected to a fixing rod 34, and the fixing rod 34 is away from the supporting block 33. One end is fixedly connected to a support plate 312, and a threaded tube 35 is fixedly sleeved inside the support plate 312. A threaded rod 36 is threadedly connected to the inner wall of the threaded tube 35, and a knob 37 is fixedly connected to the end of the threaded rod 36 away from the connecting box 31, and a sliding block 38 is rotatably connected to the end of the threaded rod 36 close to the connecting box 31. The outer wall of the sliding block 38 is slidably connected to the outer wall of the fixed rod 34, and a tension spring 39 is fixedly connected to the side of the sliding block 38 away from the threaded rod 36, and a pressing plate 310 is fixedly connected to the side of the tension spring 39 away from the sliding block 38.

[0027] There are four support blocks 33 and four fixed rods 34, and the four support blocks 33 are respectively fixedly connected to the four outer sides of the connection box 31, the four outer sides of the sliding block 38 and the pressing plate 310 are slidably connected to the outer walls of the four fixed rods 34 that are close to each other, and there are four tension springs 39, which are respectively fixedly connected to the four corners of one side where the sliding block 38 and the pressing plate 310 are close to each other.

[0028] By means of the setting of the pressing mechanism 3, the connecting box 31 can be blocked by the pressing plate 310, and the sealing can be increased by cooperating with the rubber pad 32, thereby preventing the gas inside the air intake pipe 29 from being discharged, and the threaded rod 36 is driven to rotate by the threaded tube 35, thereby facilitating the pressing of the tension spring 39 to increase the elastic potential energy, thereby preventing the gas inside the air intake pipe 29 from being discharged. When the first piston 24 moves downward, the air pressure inside the air intake pipe 29 will gradually increase, and the internal gas of the connecting box 31 will squeeze the pressing plate 310, thereby facilitating the discharge of the gas from the air intake pipe 29, facilitating the better downward movement of the first piston 24, facilitating the discharge of the air pressure inside the generating device body 1, and increasing safety.

[0029] It should be noted that the present invention is a safe dry acetylene generating device, and each component is a universal standard component or a component known to those skilled in the art. The structure and principle thereof can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0030] Working principle: First, through the safety mechanism 2 arranged on the outer wall of the generator body 1, after the connecting air pipe 21 in the safety mechanism 2 is connected with the inside of the generator body 1, the air pressure inside the generator body 1 will enter the inside of the fixed box 22 through the connecting air pipe 21. Because the inner wall of the fixed box 22 is slidably connected with the first piston 24, the connecting air pipe 21 enters the fixed box 22 and the internal gas will push the first piston 24 downward. At this time, the external high-pressure air pressure passes through one end of the intake pipe 29. By opening the valve on the intake pipe 29, the intake pipe 29 can inject air pressure into the inside of the two connecting pipes 28. After the air pressure is injected into the inside of the two connecting pipes 28, the air pressure inside the connecting pipe 28 enters the two insulation chambers respectively. The interior of the box 27, therefore, the internal air pressure of the two heat preservation boxes 27 will push the second piston 26 upwards, and at the same time, the sliding rods 25 can be pushed up respectively through the two second pistons 26, because the tops of the sliding rods 25 are fixedly connected to the bottoms of the first pistons 24, it is necessary to inject an air pressure slightly greater than that inside the generating device body 1 into the air inlet pipe 29, and the limiting ring 23 can limit and block the first piston 24, thereby effectively avoiding the problem of the first piston 24 blocking the connecting air pipe 21, and then when the internal pressure of the generating device body 1 gradually increases, the air pressure will squeeze the first piston 24 downwards, and the sliding rod 25 will be squeezed by the first piston 24, and then the second piston 26 will compress the air pressure inside the heat preservation box 27, and when the second When the first piston 24 gradually moves downward, when the top of the first piston 24 is lower than the exhaust pipe 210, the gas inside the fixed box 22 is easily discharged through the exhaust pipe 210, and enters the interior of the round box 211 through the exhaust pipe 210. The gas can be discharged from the gas outlet box 213 through the round box 211, so as to facilitate the release of gas from the inside of the generating device body 1 to the outside, thereby avoiding the problem of dangerous excessive air pressure inside the generating device body 1. At the same time, when the gas passes through the round box 211 through the exhaust pipe 210, the internal gas of the exhaust pipe 210 will blow the knocking plate 216, because the inner walls on both sides of the round box 211 can support the first support rod 214, and the first sleeve 215 can be pressed through the first support rod 214. The first sleeve 215 is supported by the inner wall of the first support rod 214, and the inner wall of the first sleeve 215 is rotatably connected to the outer wall of the first support rod 214, thereby effectively realizing that the knocking plate 216 drives the first sleeve 215 to rotate with the outer wall of the first support rod 214, and the second sleeve 218 can be supported by the second support rod 217. The knocked plate 219 is fixedly connected to the bottom of the outer wall of the second sleeve 218. When the knocking plate 216 rotates with the central axis of the first support rod 214, when multiple knocking plates 216 rotate, multiple knocking plates 216 knock the knocked plate 219 one by one. After the knocked plate 219 is knocked, the knocked plate 219 will drive the second sleeve 218 to shake. When the second sleeve 218 rotates with the second support rod 217,The fixing bar 220 is driven to shake through the second sleeve 218, and then the traction rope 221 is pulled through the fixing bar 220. When the round box 211 is pulled, the traction rope 221 will pull the bell 223, and then the bell 223 will make a sound. The protective cover 222 is fixed to the outer wall of the air outlet box 213. The bell 223 is inside the protective cover 222, and the shaking problem of the bell 223 caused by the wind blowing box bell 223 is effectively avoided. When the internal pressure of the device body 1 is too high, an early warning can be issued to remind the staff. Through the set pressing mechanism 3, the first piston 24 moves downward under the action of pressure, and then the first piston 24 drives the sliding rod 25 The second piston 26 is driven to squeeze the gas inside the heat preservation box 27 through the downward movement of the sliding rod 25, so that the gas inside the heat preservation box 27 is squeezed into the interior of the intake pipe 29, so the air pressure inside the intake pipe 29 increases. Four support blocks 33 are fixed to the outer wall of the connecting box 31, and the fixing rod 34 can be supported by the four support blocks 33. After the fixing rod 34 is supported, the support plate 312 can be pulled by the other end of the fixing rod 34, and the threaded tube 35 can be supported by the support plate 312. The threaded tube 35 can support the threaded rod 36, and the sliding block 38 can be supported by the threaded rod 36. Because the pressing plate 310 is connected to the sliding block 38 A tension spring 39 is fixed between the two sides that are close to each other. Therefore, the pressing plate 310 will be squeezed under the tension of the tension spring 39, so that the pressing plate 310 and the connecting box 31 are fitted together, and then the gas inside the intake pipe 29 gradually increases and enters the interior of the connecting box 31, and the internal air pressure of the connecting box 31 gradually increases, which pushes the pressing plate 310 so that the pressing plate 310 can be away from the connecting box 31. At the same time, a rubber pad 32 is fixed between the side of the pressing plate 310 close to the connecting box 31, so that the sealing between the connecting box 31 and the pressing plate 310 can be increased. In addition, because the threaded tube 35 is fixedly sleeved on the support plate 312, the inner wall of the threaded tube 35 is threadedly connected to the outer wall of the threaded rod 36 The four fixing rods 34 are connected to each other through the outer wall of the sliding block 38 and the outer wall of the side where the four fixing rods 34 are close to each other, so that the four fixing rods 34 can limit the sliding block 38. Therefore, by rotating the threaded rod 36, the threaded rod 36 can be moved closer to the connection box 31 or away from the connection box 31. When the threaded rod 36 approaches one side of the connection box 31, the sliding block 38 can squeeze the pressing plate 310. Because four tension springs 39 are fixedly connected between the pressing plate 310 and the sliding block 38, the tension springs 39 can be squeezed effectively to increase the elastic potential energy of the tension springs 39.Therefore, it is convenient to adjust according to the air pressure inside the generator body 1 and the air pressure inside the air inlet pipe 29.

Claims

1. A safe dry acetylene generator, comprising a generator body (1), characterized in that: A safety mechanism (2) is arranged outside the generating device body (1), and a pressing mechanism (3) is arranged outside the generating device body (1); The safety mechanism (2) comprises a fixed box (22), the top of the fixed box (22) is fixedly sleeved with a connecting air pipe (21), the other end of the connecting air pipe (21) is connected to the inside of the generating device body (1), the top of the inner wall of the fixed box (22) is fixedly connected to a limiting ring (23), the inner wall of the fixed box (22) is sealingly and slidably connected to a first piston (24), the bottom of the first piston (24) is fixedly connected to a sliding rod (25), the bottom end of the sliding rod (25) passes through the bottom of the fixed box (22) and extends to the outside of the bottom of the fixed box (22), the bottom of the fixed box (22) is fixedly connected to an insulation box (27), the bottom end of the sliding rod (25) is located inside the insulation box (27), and the The bottom end of the sliding rod (25) is fixedly connected to a second piston (26), the outer wall of the second piston (26) is slidably connected to the inner wall of the heat preservation box (27), the bottom of the heat preservation box (27) is fixedly sleeved with a connecting pipe (28), the bottom end of the connecting pipe (28) is fixedly sleeved with an air intake pipe (29), one end of the air intake pipe (29) is fixedly sleeved with a valve, one side of the fixed box (22) is fixedly sleeved with an exhaust pipe (210), when the top of the first piston (24) contacts the bottom of the limiting ring (23), the end of the exhaust pipe (210) close to the fixed box (22) is located in the middle of the side where the first piston (24) and the inner wall of the bottom of the fixed box (22) are close to each other, and the fixed box (22) is close to the exhaust pipe (210). 0) is fixedly connected to a fixing block (212), an end of the fixing block (212) away from the fixing box (22) is fixedly connected to a round box (211), an end of the exhaust pipe (210) away from the fixing box (22) is fixedly sleeved with the bottom of the round box (211), a top of the round box (211) is fixedly sleeved with an outlet box (213), a first support rod (214) is fixedly connected between the inner walls of both sides of the round box (211), an outer wall of the first support rod (214) is rotatably connected to a first sleeve (215), an outer wall of the first sleeve (215) is fixedly connected to a knocking plate (216), a second support rod (217) is fixedly connected between the inner walls of both sides of the outlet box (213), and the second support rod (217) is fixedly connected to the inner walls of the outlet box (213). 17) is rotatably connected to the outer wall of a second sleeve (218), the outer wall bottom wall of the second sleeve (218) is fixedly connected to a knocking plate (219), the outer wall top of the second sleeve (218) is fixedly connected to a fixing strip (220), the back outer wall of the air outlet box (213) is fixedly connected to a protective cover (222), a side of the fixing strip (220) close to the protective cover (222) is fixedly connected to a traction rope (221), the other end of the traction rope (221) passes through a side of the air outlet box (213) close to the protective cover (222) and extends to the inside of the protective cover (222), the other end of the traction rope (221) is fixedly connected to a bell (223), and the bell (223) is located inside the protective cover (222); The pressing mechanism (3) comprises a connecting block (311), one side of the connecting block (311) is fixedly connected to the outer wall of the generating device body (1), a side of the connecting block (311) away from the air inlet pipe (29) is fixedly connected to a connecting box (31), one end of the connecting box (31) close to the air inlet pipe (29) is fixedly sleeved with the other end of the air inlet pipe (29), a side of the connecting box (31) away from the air inlet pipe (29) is fixedly connected to a rubber pad (32), an outer wall of the connecting box (31) is fixedly connected to a supporting block (33), one end of the supporting block (33) away from the air inlet pipe (29) is fixedly connected to a fixing rod (34), and the fixing rod (34) away from the supporting block (33) is fixedly connected to the outer wall of the connecting box (31). ) is fixedly connected to a support plate (312), a threaded tube (35) is fixedly sleeved inside the support plate (312), a threaded rod (36) is threadedly connected to the inner wall of the threaded tube (35), an end of the threaded rod (36) away from the connection box (31) is fixedly connected to a knob (37), an end of the threaded rod (36) close to the connection box (31) is rotatably connected to a sliding block (38), an outer wall of the sliding block (38) is slidably connected to the outer wall of the fixed rod (34), a side of the sliding block (38) away from the threaded rod (36) is fixedly connected to a tension spring (39), and a side of the tension spring (39) away from the sliding block (38) is fixedly connected to a pressing plate (310).

2. The safe dry acetylene generator according to claim 1, characterized in that: The sliding rod (25), the second piston (26), the heat-insulating box (27), and the connecting pipe (28) are all in two pieces and are mirror-symmetrical about the center point of the fixed box (22).

3. The safe dry acetylene generator according to claim 2 is characterized in that: Both ends of the first support rod (214) are fixedly connected to mutually adjacent central axes of two sides of the round box (211); there are six knocking plates (216) arranged in a circular equidistant array around the central axis of the first support rod (214).

4. The safe dry acetylene generator according to claim 3 is characterized in that: There are four support blocks (33) and four fixing rods (34), and the four support blocks (33) are respectively fixedly connected to four outer sides of the connection box (31), and the four outer sides of the sliding block (38) and the pressing plate (310) are slidably connected to the outer walls of the four fixing rods (34) that are close to each other.

5. The safe dry acetylene generator according to claim 4 is characterized in that: There are four tension springs (39), which are respectively fixedly connected to four corners of a side where the sliding block (38) and the pressing plate (310) are close to each other.

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