Electroless gas gun

Abstract

The invention relates to the technical field of fastening equipment, in particular to a non-electric gas gun. According to the specific technical scheme, the non-electric gas gun comprises a shell, a cylinder body arranged in the shell and an ignition mechanism arranged at the bottom of the cylinder body, an explosion cylinder communicated with the cylinder body is arranged at one end of the cylinder body, a nail pipe is inserted into the other end of the cylinder body, the end, away from the cylinder body, of the explosion cylinder is provided with an opening, and a contact arm is fixed to the side wall of the nail pipe; a valve rod is fixed to the other end of the contact arm, one end of the valve rod extends into the explosion cylinder and is fixedly provided with a cylinder cover matched with the explosion cylinder, the end, connected with the contact arm, of the valve rod is sleeved with a sealing ring, the sealing ring is matched with a through hole, penetrating through the explosion cylinder, of the valve rod, and a baffle ring for limiting the cylinder cover is arranged at the open end of the explosion cylinder. A reset spring is arranged at the center, facing the opening end of the explosion cylinder, of the cylinder cover. According to the gas gun, air supply and stirring through a fan assembly are not needed, logic control and high-voltage coil ignition through a circuit control assembly are not needed, certainly, a battery is not needed for power supply, the whole product structure is novel and simple, the operation safety of the gas gun is improved, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of fastening equipment, in particular to a non-electric gas gun. Background Art

[0002] A gas gun is a gas nail gun that uses gas combustion as a driving force to perform fastening operations. The main structure includes a nail box, a handle, and a gun body. The combustion cavity is located at the rear end of the gun head, and a gas tank is placed in the handle. The gas tank is connected to the combustion cavity through a switch. A battery pack and a blower connected thereto are arranged in the gun body, and the outside air is sucked into the combustion cavity through the blower to mix with the gas inside. At the same time, the battery is connected to the ignition device, the ignition switch and the power switch. The ignition device is controlled to start and stop by the ignition switch, and the blower is controlled to start and stop by the power switch. Therefore, during the entire process of mixing gas with outside air and igniting gas, the battery is used as a power source to control the start and stop of the corresponding components. Although the battery-powered ignition method and the fan motor assembly air supply and gas mixing method have the advantages of convenience and reduced dependence on external power supply, they also have disadvantages in terms of battery life and endurance, charging safety, the risk of gas explosion, environmental adaptability, weight and portability, cost considerations, and technical maturity and reliability. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a non-electric gas gun that does not require air supply through a fan motor assembly and battery power for ignition, thereby reducing the risk of gas explosion and improving the operational safety of the gas gun.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] The invention discloses a non-electric gas gun, comprising a shell, a cylinder body arranged in the shell and an ignition mechanism arranged at the bottom of the cylinder body, one end of the cylinder body is provided with an explosion cylinder communicated with the cylinder body, the other end is provided with a nail tube inserted therein, the explosion cylinder is open at one end away from the cylinder body, a contact arm is fixed on the side wall of the nail tube, a valve stem is fixed on the other end of the contact arm, one end of the valve stem extends into the explosion cylinder and is fixed with a cylinder cover adapted to the explosion cylinder, a sealing ring is sleeved on the valve stem and at the connecting end with the contact arm, the sealing ring is adapted to the through hole of the valve stem passing through the explosion cylinder, a retaining ring for limiting the cylinder cover is provided at the open end of the explosion cylinder, and a reset spring is provided at the center of the cylinder cover facing the open end of the explosion cylinder.

[0006] Preferably, a guide plate is provided on the end face where the explosion cylinder is connected to the cylinder body, one end of the valve stem passes through the guide plate and extends into the explosion cylinder, the valve stem is adapted to the guide plate, an air outlet is provided on the guide plate near the valve stem, and an inclined groove facing the air outlet and communicating with the air outlet is provided on the side wall of the through hole.

[0007] Preferably, an exhaust hole is provided on the side wall of the cylinder body, a valve plate is provided outside the cylinder body above the exhaust hole, one end of the valve plate is fixed by an arc plate, a flame extinguishing block is provided between the arc plate and the cylinder body, and the area formed by the arc plate and the flame extinguishing block corresponds to the exhaust hole.

[0008] Preferably, an air intake seat is provided at the bottom of the cylinder body, a first air intake pipe is embedded in the air intake seat, a second air intake pipe is provided on the end surface of the connection between the explosion cylinder and the cylinder body, the first air intake pipe and the second air intake pipe are connected by a silicone tube, and a gas tank is provided below the air intake seat, the gas nozzle of the gas tank extends into the first air intake pipe; an air compression assembly is provided on the cylinder body, so that when the nail tube moves, it drives the air compression assembly to press the gas tank, thereby compressing the gas nozzle on the gas tank.

[0009] Preferably, there are two contact arms, which are correspondingly arranged on both sides of the cylinder body, and the air compression assembly includes a V-shaped pressure block, both ends of the pressure block are located on both sides of the cylinder body and are rotatably connected to the support block, the support block is fixed on a clamp arranged outside the cylinder body, a first spring is arranged between the clamp and the pressure block, push plates are arranged at both ends of the pressure block towards the direction of the nail tube, a pin is arranged on the push plate, a slide with an inclined surface on one side is arranged at the bottom of the contact arm, and the pin is located in the slide; when the contact arm moves toward the explosion cylinder, under the action of the slide, the push plate is pushed to make the pressure block rotate toward the gas tank, thereby compressing the gas nozzle of the gas tank.

[0010] Preferably, a trigger is arranged beside the gas tank, a second spring is arranged on the top of the trigger, a trigger block is arranged on the top of the trigger, a sparker is arranged between the trigger block and the clamp, a spark plug is inserted into the end face of the connection between the explosion cylinder and the cylinder body, and the spark plug is connected to the sparker.

[0011] Preferably, a first safety mechanism is provided above the trigger, and the first safety mechanism includes a safety plate, one end of the safety plate is rotatably connected by a rotating shaft, and the other end passes through a "convex" shaped limiting hole opened on the trigger block, and upwardly bent wing plates are respectively provided on both sides of the safety plate, and a strip notch is provided on the bottom surface of the contact arm, and the end of the wing plate extends into the strip notch.

[0012] Preferably, a piston rod is coaxially arranged in the cylinder body, a piston disc is arranged at one end of the piston rod facing the explosion cylinder, the piston disc is adapted to the cylinder body, and a buffer block is arranged at one end of the cylinder body corresponding to the piston disc.

[0013] Preferably, a nail tube seat is provided at one end of the cylinder body, one end of the nail tube is inserted into the nail tube seat, a second safety mechanism is provided at the top of the nail tube seat, and a nail box is provided at the bottom of the nail tube seat.

[0014] Preferably, the second safety mechanism includes a safety plate, one end of which is rotatably connected to the nail tube seat, and the other end is provided with a protrusion and inserted into the nail tube seat to abut against the tube opening of the nail tube extending into the nail tube seat, a steel ball is embedded in the nail tube seat, and a second magnet is provided at a position corresponding to the steel ball on the safety plate, and one end of the safety plate close to its hinge is connected to the nail tube seat through a third spring.

[0015] Preferably, the outer shell is provided with openings at the open end of the explosion cylinder and near the through hole, a guide tube is provided at the center of the cylinder cover, a first magnet is provided in the guide tube, the return spring is sleeved on the guide tube, and the other end is connected to the outer shell.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention provides a contact arm on the nail tube, and connects to the explosion cylinder at one end of the cylinder body. One end of the contact arm is connected to the valve stem and the valve stem is extended into the explosion cylinder. One end of the valve stem in the explosion cylinder is connected to the cylinder cover. At the same time, a gas tank is provided below the cylinder body, and the gas tank is connected to the explosion cylinder through an air intake pipe. A pressure block is also provided below the cylinder body, and the pressure block corresponds to the gas tank. A slideway is provided at the bottom of the contact arm, and the slideway corresponds to the push piece on the pressure block. When the contact arm moves toward the explosion cylinder, the slideway pushes the pressure block to rotate toward the gas tank, so that the gas nozzle on the gas tank is compressed, and the purpose of air intake into the explosion cylinder through the air intake pipe is achieved. In the process of the contact arm moving toward the explosion cylinder, the wing plate on the first safety mechanism rotates downward under the action of the strip notch on the contact arm, so that the safety plate rotates from the groove above the limiting hole to the groove below, and the restriction on the trigger is released. At this time, the trigger is pulled to compress the sparker and ignite through the spark plug. In the present invention, no fan or battery is used for either air intake or ignition. Instead, a contact arm, a valve stem, an explosion cylinder, a pressure block and other structures are used. Through the linkage effect, gas and external air are allowed to enter the cavity formed by the explosion cylinder and the cylinder cover for mixing, and finally the trigger is directly pulled to achieve the tightening operation.

[0018] 2. Compared with the ignition assembly, i.e., the control circuit assembly, provided in the existing gas gun, the input end of which is connected to the battery, the output end of which is connected to the fan motor assembly, the high-voltage ignition cap, the in-position switch, and the trigger switch, and the price is expensive. The present invention completely eliminates these structures, and there is no need to provide a battery and a charger that comes with the gun. Instead, a contact arm is directly provided on the nail tube, and the valve stem and the cylinder cover are driven to move in the explosion cylinder by the contact arm, which not only triggers the gas nozzle of the gas tank to realize the gas entering the explosion cylinder, but also realizes that the air passes through the inclined hole to generate a vortex to mix the gas with the air. In the whole process, there is no need to rely on battery power supply. Compared with the existing gas gun, the gas gun disclosed by the present invention greatly saves costs and improves the safety of the gas gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention (initial state);

[0020] Figure 2 for Figure 1 The main view (initial state);

[0021] Figure 3 for Figure 2 Longitudinal section view (initial state);

[0022] Figure 4 for Figure 2 Middle AA view (initial state);

[0023] Figure 5 The setting of the inclined slot and air outlet on one side of the cylinder body;

[0024] Figure 6 The setting of the inclined slot and tuyere on the other side of the cylinder body;

[0025] Figure 7 This is a state diagram of the gas gun of the present invention after the contact arm moves into position;

[0026] Figure 8 for Figure 7 Middle BB view;

[0027] Fig. 9 for Figure 8 Middle CC view;

[0028] Fig.10 for Figure 7 Middle A is a partial enlarged view;

[0029] Fig.11 for Figure 7 Middle B is a partial enlarged view;

[0030] Fig.12 This is a schematic diagram of the structure of the First Insurance Agency;

[0031] In the figure: housing 1, cylinder body 2, explosion cylinder 3, nail tube 4, contact arm 5, valve stem 6, cylinder cover 7, sealing ring 8, through hole 9, retaining ring 10, return spring 11, exhaust hole 12, valve plate 13, arc plate 14, flame extinguishing block 15, air intake seat 16, first air intake pipe 17, second air intake pipe 18, silicone tube 19, gas tank 20, pressure block 21, support block 22, hoop 23, first spring 24, push piece 25, pin 26, Slide 27, trigger 28, second spring 29, trigger block 30, sparker 31, spark plug 32, safety plate 33, limiting hole 34, wing plate 35, strip notch 36, piston rod 37, piston disc 38, buffer block 39, nail tube seat 40, nail magazine 41, safety plate 42, steel ball 43, second magnet 44, third spring 45, guide tube 46, first magnet 47, deflector 48, inclined slot 49, air outlet 50. DETAILED DESCRIPTION

[0032] 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.

[0033] Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0034] refer to Figure 1-Figure 12 The present invention discloses a non-electric gas gun, comprising a shell 1, a cylinder body 2 arranged in the shell 1, and an ignition mechanism arranged at the bottom of the cylinder body 2, that is, the ignition mechanism, the cylinder body, the explosion cylinder, the gas tank and other structures are all wrapped in the shell. An explosion cylinder 3 communicating with the cylinder body 2 is arranged at one end, and a nail tube 4 is inserted at the other end. Specifically, one end of the cylinder body is inserted into the explosion cylinder and fixed, and at the same time, the end surface of the end where the cylinder body and the explosion cylinder are fixed is flush with the inner wall surface of the explosion cylinder.

[0035] The explosion cylinder 3 is open at one end away from the cylinder body 2, and a contact arm 5 is fixed on the side wall of the nail tube 4, and the contact arm is arranged along the axial direction of the cylinder body. A valve stem 6 is fixed at the other end of the contact arm 5, and one end of the valve stem 6 extends into the explosion cylinder 3 and is fixed with a cylinder cover 7 adapted to the explosion cylinder 3. A piston ring is arranged on the circumference of the cylinder cover. A sealing ring 8 is sleeved on the valve stem 6 and the connecting end with the contact arm 5. The sealing ring 8 is adapted to the through hole 9 through which the valve stem 6 passes through the explosion cylinder 3, thereby sealing the explosion cylinder. A retaining ring 10 for limiting the cylinder cover 7 is arranged at the open end of the explosion cylinder 3, and a return spring 11 is arranged at the center of the cylinder cover 7 toward the open end of the explosion cylinder 3. It should be noted that when the contact arm moves toward the explosion cylinder, it will drive the valve stem to move, and then push the cylinder cover to move toward the open end of the explosion cylinder. In this process, the outside air enters the explosion cylinder through the through hole (the gap between the valve stem and the through hole) and mixes with the gas in the explosion cylinder. The retaining ring is set to support the cylinder head. When the sealing ring on the valve stem just seals the through hole, the cylinder head contacts the retaining ring. At this time, the space inside the explosion cylinder forms an independent space from the outside world, ensuring that there will be no leakage when the gas explodes. The high-pressure gas can only act on the piston plate of the piston rod, thereby working to the left. The reset spring can prevent the cylinder head from hitting the retaining ring and reset the cylinder head at the same time.

[0036] Furthermore, the end surface of the explosion cylinder 3 connected to the cylinder body 2 is provided with a guide plate 48, and the piston disc in the cylinder body abuts against the guide plate to position and support it. One end of the valve stem 6 passes through the guide plate 48 and extends into the explosion cylinder 3. The valve stem 6 is adapted to the guide plate 48. A tuyere 50 is provided on the guide plate 48 near the position of the valve stem 6. An inclined groove 49 facing the tuyere 50 and communicating with the tuyere 50 is provided on the side wall of the through hole 9. It should be noted that: there is no gap between the valve stem and the guide plate, so that the outside air enters the explosion cylinder through the air inlet formed by the through hole, the inclined groove and the tuyere in turn. At the same time, due to the setting of the inclined groove and the tuyere to form an inclined hole, the air entering the explosion cylinder generates a vortex, thereby stirring and mixing the gas entering the explosion cylinder.

[0037] Furthermore, an exhaust hole 12 is provided on the side wall of the cylinder body 2. The exhaust hole is provided on the cylinder body near the nail tube. A valve plate 13 is provided outside the cylinder body 2 above the exhaust hole 12. The valve plate is not fixed to the exhaust hole but directly covers the exhaust hole. One end of the valve plate 13 is fixed by an arc plate 14, that is, one end of the arc plate presses the valve plate. A flame extinguishing block 15 is provided between the arc plate 14 and the cylinder body 2. The area formed by the arc plate 14 and the flame extinguishing block 15 corresponds to the exhaust hole 12. It should be noted that the cavity between the arc plate and the cylinder body constitutes an exhaust channel connected to the exhaust hole. The positions where the flame extinguishing block and the arc plate are fixed are respectively located on both sides of the exhaust hole. Above the exhaust hole is a cavity supported by the arc plate and the flame extinguishing block. The high-temperature and high-pressure gas in the cylinder body is discharged by lifting the valve plate to avoid excessive deformation of the valve plate and being unable to recover. The flame extinguishing block is a block pressed into a certain density by fine steel wire. The high-temperature and high-pressure gas is discharged with flames, and the flames are extinguished after passing through the flame extinguishing block. The passage supported by the arc plate and the flame extinguishing block is connected to an outlet on the outer shell, so that the high-temperature and high-pressure gas can be discharged to the outside after passing through the flame extinguishing block. Among them, one end of the arc plate fixing the valve plate is fixed by a clamp 23, that is, the clamp is fixed on the circumference of the cylinder body, and one end of the arc plate is fixed to the cylinder body by the clamp. The number of exhaust holes and arc plates is set according to needs.

[0038] Further, an air intake seat 16 is provided at the bottom of the cylinder body 2, a first air intake pipe 17 is embedded in the air intake seat 16, a second air intake pipe 18 is provided on the end surface of the connection between the explosion cylinder 3 and the cylinder body 2, the first air intake pipe and the second air intake pipe are fixed to the air intake seat and the explosion cylinder respectively, the first air intake pipe 17 and the second air intake pipe 18 are connected by a silicone tube 19, a gas tank 20 is provided below the air intake seat 16, the gas nozzle of the gas tank 20 extends into the first air intake pipe 17, and a sealing gasket is provided between the gas nozzle and the first air intake pipe; a compressed air assembly is provided on the cylinder body 2, so that when the nail tube 4 moves, the compressed air assembly is driven to press the gas tank 20, so that the gas nozzle on the gas tank 20 is compressed, and the gas enters the explosion cylinder through the air intake pipe. The gas tank is arranged in the shell to form the handle of the gas gun.

[0039] Furthermore, two contact arms 5 are provided and are correspondingly arranged on both sides of the cylinder body 2. Therefore, two inclined holes are also provided. In order to make the air entering the explosion cylinder form a spiral, the inclined groove in the through hole and the air outlet on the guide plate are centrally symmetrically arranged.

[0040] Specifically: the compressed air assembly includes a V-shaped pressing block 21, the two ends of which are located on both sides of the cylinder body 2 and are rotatably connected to a support block 22. The support block 22 is fixed on a clamp 23 arranged outside the cylinder body 2, and the support block is arranged horizontally. A first spring 24 is arranged between the clamp 23 and the pressing block 21, so that the pressing block can be reset under the action of the spring after rotation. Pushing pieces 25 are arranged at both ends of the pressing block 21 in the direction of the nail tube 4, and the pushing piece and the two ends of the pressing block have a certain angle, such as close to 90°. A pin 26 is arranged through the pushing piece 25, and a slideway 27 with an inclined surface on one side is arranged at the bottom of the contact arm 5. The slideway can be understood as a notch with an inclined surface, and the pin 26 is located in the slideway 27; the inclined surface of the slideway is arranged in the direction close to the nail tube. When the contact arm 5 moves toward the explosion cylinder 3, the inclined surface of the slideway will push the pin on the pushing piece to move downward, thereby causing the pressing block to rotate toward the gas tank, thereby compressing the gas nozzle of the gas tank.

[0041] Further, a trigger 28 is arranged beside the gas tank 20. Specifically, the trigger is arranged on the outer shell outside the gas tank. A second spring 29 is arranged on the top of the trigger 28, which can be reset under the action of the spring after the trigger is pulled. A trigger block 30 is arranged on the top of the trigger 28. The ignition mechanism includes a sparker 31 arranged between the trigger block 30 and the clamp 23. A spark plug 32 is inserted into the end surface of the connection between the explosion cylinder 3 and the cylinder body 2. The spark plug 32 is connected to the sparker 31 through an electric wire. It should be noted that the sparker and the spark plug are preferably arranged in two. The sparker is arranged horizontally and is respectively located on both sides of the pressure block. One end of the sparker can be fixed on the clamp or directly stuck in the groove of the clamp; the other end is directly fixed on the trigger block. When the trigger is pulled, the sparker is compressed, generating current, so that the spark plug generates electric sparks and then ignites the gas.

[0042] Furthermore, a first safety mechanism is provided above the trigger 28. When the contact arm is not moved into position, the first safety mechanism can prevent the trigger from being accidentally touched to ignite. Specifically, the first safety mechanism includes a safety plate 33. One end of the safety plate 33 is connected by a rotating shaft, and the hinged end is the end close to the nail tube. The other end passes through a "convex" limiting hole 34 provided on the trigger block 30. Both sides of the safety plate 33 are provided with wing plates 35 bent upward. The bottom surface of the contact arm 5 is provided with a strip notch 36, and the end of the wing plate extends into the strip notch. The strip notch is connected to the slideway, and the two form a step shape. It should be noted that in the initial state, the end of the wing plate extending into the strip notch is arranged close to the slideway. When the contact arm moves, the notch end face of the strip notch contacts the wing plate, thereby driving the safety plate to rotate downward. At this time, the trigger is pulled to realize the ignition operation. Among them, the limiting hole is set through the trigger block. In the initial state, the safety plate is located in the upper groove of the limiting hole; when the contact arm moves, the safety plate is located in the lower groove of the limiting hole, that is, the restriction on the trigger is released.

[0043] Furthermore, a piston rod 37 is coaxially arranged in the cylinder body 2, and a piston disc 38 is arranged at one end of the piston rod 37 facing the explosion cylinder 3, and the piston disc 38 is adapted to the cylinder body 2, and a piston ring is arranged on the circumference of the piston disc, and a buffer block 39 is arranged at one end of the cylinder body 2 corresponding to the piston disc 38, so as to alleviate the impact of the piston disc. The inner hole diameter of the guide plate 48 is smaller than the inner diameter of the cylinder body 2, and an annular groove adapted to the guide plate is arranged at the edge of one end of the piston disc facing the explosion cylinder. In the initial state, the annular groove is stuck on the guide plate to prevent the piston disc from extending into the explosion cylinder and support the piston disc.

[0044] Furthermore, a nail tube seat 40 is provided at one end of the cylinder body 2, one end of the nail tube 4 is inserted into the nail tube seat 40, a second safety mechanism is provided at the top of the nail tube seat 40, and a nail box 41 is provided at the bottom of the nail tube seat 40. The second safety mechanism is to limit the nail tube to prevent the nail tube from moving toward the inside of the nail tube seat when it is not needed.

[0045] Specifically: the second safety mechanism includes a safety plate 42, one end of which is rotatably connected to the nail tube seat 40, and the other end is provided with a protrusion, which is inserted into the nail tube seat 40 and abuts against the tube mouth of the nail tube 4 extending into the nail tube seat 40. A steel ball 43 is embedded in the nail tube seat 40, and a second magnet 44 is provided on the safety plate 42 at a position corresponding to the steel ball 43. One end of the safety plate 42 near its hinge is connected to the nail tube seat 40 through a third spring 45. It should be noted that: the hinged end of the safety plate is arranged near the cylinder body, and the second magnet is arranged near the hinged end of the safety plate. The arrangement of the third spring enables the gas gun to automatically reset the safety plate after completing a shot.

[0046] Furthermore, the outer shell 1 is provided with openings at the open end of the explosion cylinder 3 and near the through hole 9 to facilitate the entry of outside air and the discharge of exhaust gas; a guide tube 46 is provided at the center of the cylinder head 7, and a first magnet 47 is provided in the guide tube 46 to attract the cylinder head and the end of the piston disk or the piston rod; the return spring 11 is sleeved on the guide tube 46, and the other end is connected to the outer shell 1.

[0047] Figure 1-Figure 4 The gas gun of the present invention is in its initial state, i.e., in an unused state (with the outer shell removed). Figure 5-Figure 9 This is a state diagram of the gas gun of the present invention when in use (including the housing).

[0048] by Figure 1-Figure 4 It is the initial state. When in use, the compression nail tube 4 moves to the right, driving the contact arm 5 to move to the right as well. The contact arm 5 drives the valve stem 6, and the valve stem 6 drives the cylinder cover 7 to move to the right in the explosion cylinder 3, gradually forming a cavity. External air enters the cavity through the gap around the valve stem 6 and the explosion cylinder 3. At the same time, the contact arm 5 will drive the pressure block 21 to rotate when it starts to move, and the pressure block 21 will push the gas tank to move to the right, so that the gas nozzle of the compression gas tank will fill the space formed by the explosion cylinder 3 and the cylinder cover 7 with gas, and the cylinder cover 7 will complete the intake before the movement stroke in the explosion cylinder 3 reaches about 1 / 3. It should be noted that the amount of gas filled into the explosion cylinder is fixed, which is specifically determined by the structure of the gas nozzle part. If you want to change the intake amount, you only need to replace the gas nozzle on the gas tank. Different intake amounts can be used for gas guns of different powers.

[0049] At this time, the nail tube 4 continues to press, and the cylinder cover 7 continues to move rightward until it is close to the right edge of the end point. During this process, the outside air continues to enter through the gap between the valve stem 6 and the explosion cylinder 3, but because there is a shell, the gas enters the shell through the opening on the shell, and forms a vortex through the two through holes and the inclined hole between the explosion cylinder (the inclined hole formed by the inclined groove and the air outlet), thereby stirring the gas to achieve the effect of fully mixing the gas. After reaching the end point, the sealing ring 8 at the connection end of the valve stem 6 and the contact arm 5 blocks the through hole 9 to seal the air. At the same time, the wing plate 35, under the push of the strip notch 36, rotates the safety plate 33 to the groove below the limiting hole 34, thereby releasing the limit of the trigger.

[0050] At this time, the trigger 28 is pulled, and the trigger 28 presses the spark plug 31 to ignite the spark plug 32 to generate high-pressure sparks and send them into the mixed gas in the cavity formed by the explosion cylinder 3 and the cylinder cover 7, so that it explodes. The high-pressure gas generated by the explosion pushes the piston rod 37 to move leftward at a high speed, driving the nail out of the body and into the fastened substrate, completing the shooting.

[0051] After shooting, the high-temperature and high-pressure gas lifts the valve plate 13 and is discharged through the exhaust hole 12. After being discharged, the valve plate 13 automatically rebounds, and a temporary vacuum is formed in the cylinder body 2, sucking the piston rod 37 back to the original position to the right. The gas gun leaves the fired substrate, and the cylinder cover 7 moves to the left under the action of the return spring 11, while pushing the valve stem, the contact arm, and the nail tube to move to the left. The sealing ring on the left side of the valve stem leaves the through hole, and the exhaust gas is discharged from the two through holes again until the cylinder cover 7 returns to the leftmost end, and a cycle is completed.

[0052] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A non-electric gas gun, comprising a housing (1), a cylinder (2) arranged in the housing (1), and an ignition mechanism arranged at the bottom of the cylinder (2), characterized in that: An explosion cylinder (3) communicating with the cylinder body (2) is arranged at one end thereof, and a nail tube (4) is inserted into the other end thereof. The explosion cylinder (3) is open at one end away from the cylinder body (2). A contact arm (5) is fixed on the side wall of the nail tube (4). A valve stem (6) is fixed on the other end of the contact arm (5). One end of the valve stem (6) extends into the explosion cylinder (3) and is fixed with a cylinder cover (7) adapted to the explosion cylinder (3). A sealing ring (8) is sleeved on the valve stem (6) and at the connection end with the contact arm (5). The sealing ring (8) is adapted to a through hole (9) through which the valve stem (6) passes through the explosion cylinder (3). A retaining ring (10) for limiting the cylinder cover (7) is arranged at the open end of the explosion cylinder (3). A return spring (11) is arranged at the center of the cylinder cover (7) facing the open end of the explosion cylinder (3).

2. The non-electric gas gun according to claim 1, characterized in that: A guide plate (48) is provided on the end surface of the explosion cylinder (3) connected to the cylinder body (2); one end of the valve stem (6) passes through the guide plate (48) and extends into the explosion cylinder (3); the valve stem (6) is adapted to the guide plate (48); an air port (50) is provided on the guide plate (48) near the valve stem (6); and an inclined groove (49) facing the air port (50) and communicating with the air port (50) is provided on the side wall of the through hole (9).

3. The non-electric gas gun according to claim 1, characterized in that: An exhaust hole (12) is provided on the side wall of the cylinder body (2), and a valve plate (13) is provided outside the cylinder body (2) above the exhaust hole (12). One end of the valve plate (13) is fixed by an arc plate (14), and a flame extinguishing block (15) is provided between the arc plate (14) and the cylinder body (2). The area formed by the arc plate (14) and the flame extinguishing block (15) corresponds to the exhaust hole (12).

4. The non-electric gas gun according to claim 1, characterized in that: An air intake seat (16) is provided at the bottom of the cylinder body (2), and a first air intake pipe (17) is embedded in the air intake seat (16). A second air intake pipe (18) is provided on the end surface of the connection between the explosion cylinder (3) and the cylinder body (2). The first air intake pipe (17) and the second air intake pipe (18) are connected by a silicone tube (19). A gas tank (20) is provided below the air intake seat (16), and the gas nozzle of the gas tank (20) extends into the first air intake pipe (17); a compressed air component is provided on the cylinder body (2), so that when the nail tube (4) moves, the compressed air component is driven to press the gas tank (20), so that the gas nozzle on the gas tank (20) is compressed.

5. The non-electric gas gun according to claim 4, characterized in that: The contact arms (5) are provided with two and are correspondingly arranged on both sides of the cylinder body (2). The compressed air assembly comprises a V-shaped pressing block (21). The two ends of the pressing block (21) are located on both sides of the cylinder body (2) and are rotatably connected to a support block (22). The support block (22) is fixed on a clamping hoop (23) arranged outside the cylinder body (2). A first spring (24) is arranged between the clamping hoop (23) and the pressing block (21). The two ends of the pressing block (21) face the nail tube. A push piece (25) is arranged in the direction of (4), and a pin (26) is arranged on the push piece (25). A slideway (27) with an inclined surface on one side is arranged at the bottom of the contact arm (5), and the pin (26) is located in the slideway (27); when the contact arm (5) moves toward the explosion cylinder (3), under the action of the slideway (27), the push piece (25) is pushed to make the pressure block (21) rotate toward the gas tank (20), thereby compressing the gas nozzle of the gas tank (20).

6. The non-electric gas gun according to claim 5, characterized in that: A trigger (28) is arranged beside the gas tank (20), a second spring (29) is arranged on the top of the trigger (28), a trigger block (30) is arranged on the top of the trigger (28), the ignition mechanism comprises a sparker (31) arranged between the trigger block (30) and the clamp (23), a spark plug (32) is inserted into the end surface of the connection between the explosion cylinder (3) and the cylinder body (2), and the spark plug (32) is connected to the sparker (31).

7. The non-electric gas gun according to claim 6, characterized in that: A first safety mechanism is arranged above the trigger (28), and the first safety mechanism comprises a safety plate (33). One end of the safety plate (33) is rotatably connected via a rotating shaft, and the other end passes through a "convex" limiting hole (34) provided on the trigger block (30). Both sides of the safety plate (33) are respectively provided with wing plates (35) bent upwards. The bottom surface of the contact arm (5) is provided with a strip-shaped notch (36), and the end of the wing plate (35) extends into the strip-shaped notch (36).

8. The non-electric gas gun according to any one of claims 1 to 6, characterized in that: A nail tube seat (40) is arranged at one end of the cylinder body (2), one end of the nail tube (4) is inserted into the nail tube seat (40), a second safety mechanism is arranged at the top of the nail tube seat (40), and a nail box (41) is arranged at the bottom of the nail tube seat (40).

9. The non-electric gas gun according to claim 8, characterized in that: The second safety mechanism comprises a safety plate (42), one end of which is rotatably connected to the nail tube seat (40), and the other end of which is provided with a protrusion and inserted into the nail tube seat (40) to abut against the tube opening of the nail tube (4) extending into the nail tube seat (40), a steel ball (43) is embedded in the nail tube seat (40), a second magnet (44) is provided at a position corresponding to the steel ball (43) on the safety plate (42), and one end of the safety plate (42) close to its hinge is connected to the nail tube seat (40) through a third spring (45).

10. The non-electric gas gun according to claim 7, characterized in that: The outer shell (1) is provided with openings at the open end of the explosion cylinder (3) and near the through hole (9); a guide tube (46) is provided at the center of the cylinder cover (7); a first magnet (47) is provided in the guide tube (46); the return spring (11) is sleeved on the guide tube (46), and the other end is connected to the outer shell (1).

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