Firing assembly of nail shooting device and nail shooting device

Abstract

The utility model discloses a percussion assembly of a nail shooting device and the nail shooting device, and belongs to the field of handheld nailing tools. According to the scheme, a percussion sleeve sliding groove is omitted, and percussion of the nail shooter is not affected. In the stress energy storage process of the first spring, the pipe base is close to the base body and extends into the first through groove of the base body, and the trigger part at one end of the pipe base can make contact with the safety pin of the safety device. And then the trigger part pushes the safety pin to move into the second groove. After the safety pin completely enters the second groove, energy stored by the first spring is released instantly, the whole shaft rod is pushed to slide in the second through groove, and then the firing pin is pushed to move in the first direction and collide with the nail bottom shell. The percussion process is completed through cooperation of the first through groove, the second through groove, the safety device and the trigger part, a sliding groove does not need to be formed in the tube base, the phenomenon that the percussion pin is stuck due to the sliding groove is avoided, and the machining cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hand-held nail driving tools, and more specifically, to a nail gun firing assembly and a nail gun. Background Art

[0002] As an efficient and precise tool, the axial nail gun is gradually favored by the majority of professionals. Its unique working principle and wide application range play an irreplaceable role in improving production efficiency and ensuring project quality. The axial nail gun is a tool that quickly and accurately shoots nails into the target material through axial force. It uses the instantaneous impact force generated by high-pressure gas or spring energy storage to push the nail out at high speed along the axial direction, thereby realizing the fastening of various materials such as wood, metal, and concrete. This working method not only greatly saves manpower and time but also ensures the accuracy of the penetration depth and angle of the nail.

[0003] In the existing technical field, the firing sleeve of the nail gun plays a key role in assembling the firing pin assembly. It is designed with multiple sliding grooves so that the firing pin can be firmly embedded therein and smoothly reset after completing the task of firing the firing pin. However, the firing sleeve adopts a tubular structure, and the machining accuracy of the sliding grooves on its circumferential side is often difficult to reach the ideal state. This problem not only easily causes the jamming of the firing pin but also significantly increases the processing cost, thus posing a severe challenge to the production efficiency of the nail gun. Summary of the Invention

[0004] Aiming at the technical problem that the sliding grooves of the firing sleeve of the nail gun are difficult to machine, this solution provides a nail gun firing assembly and a nail gun. In this solution, the sliding grooves of the firing sleeve are cancelled without affecting the firing of the nail gun.

[0005] To achieve the above object, the technical solution provided by the utility model is as follows:

[0006] A nail gun firing assembly of the utility model includes

[0007] A base tube, the base tube is a hollow tube structure, and one end thereof is provided with a trigger part;

[0008] A shaft rod, one end of the shaft rod is sleeved in the base tube, and its end is limited at the bottom of the base tube; the other end of the shaft rod is fixedly connected with a safety seat, and a second groove is provided on the outer periphery of the safety seat;

[0009] A safety device, the safety device is located in the second groove, and it includes a safety pin and a safety spring. The safety spring abuts against the bottom of the second groove, and it supports the safety pin to elastically slide in the second groove;

[0010] A first spring is sleeved on the shaft rod, with one end connected to the bottom of the safety seat and the other end pressing against the bottom of the tube seat.

[0011] A seat body, inside which there are a first through groove and a second through groove arranged coaxially. The safety device is located in the first through groove to block the free sliding of the safety seat along the second through groove.

[0012] The triggering part contacts and pushes the safety pin into the second groove, so that the first spring pushes the safety seat to axially shoot out along the second through groove.

[0013] During the energy storage process of the first spring, the tube seat moves closer to the seat body and extends into the first through groove of the seat body. The triggering part at one end of the tube seat will contact the safety pin of the safety device. Then the triggering part pushes the safety pin to move into the second groove. When the safety pin completely enters the second groove, the energy stored in the first spring is instantly released, pushing the entire shaft rod to slide in the second through groove, and then pushing the firing pin to move in the first direction to strike on the bottom shell of the nail. In the technical solution of the present application, through the cooperation of the first through groove, the second through groove, the safety device and the triggering part, the firing process is completed. There is no need to open a sliding groove on the tube seat, which not only solves the jamming phenomenon of the firing pin caused by the sliding groove, but also reduces the processing cost.

[0014] In the firing assembly of the nail gun provided in the present application, further, the triggering part is an inner chamfer provided at the end of the tube seat. The inner chamfer is easy to process and can smoothly push the safety pin to slide into the second groove.

[0015] In the firing assembly of the nail gun provided in the present application, further, the tube seat further includes a first limiting surface and / or a second limiting surface. When the first limiting surface contacts the bottom end surface of the seat body, it is limited; when the second limiting surface contacts the top surface of the first through groove, it is limited. The first limiting surface and the second limiting surface can be used for mutual limitation between the tube seat and the seat body to limit the relative moving distance between the tube seat and the seat body to ensure the firing stability.

[0016] In the firing assembly of the nail gun provided in the present application, further, the firing assembly of the nail gun includes a second spring, and both ends of the second spring respectively press against a first ring connected to the outer periphery of the tube seat and a second ring connected to the outer periphery of the seat body. After the second spring stores energy, it can reset the tube seat and the seat body.

[0017] In the firing assembly of the nail gun provided in the present application, further, the firing assembly of the nail gun includes a firing pin fixed at one end of the shaft rod and a needle tube sleeved on the firing pin. The bottom of the needle tube is coaxially connected to the top of the seat body. Under the push of the shaft rod, the firing pin is guided by the needle tube and passes through the end of the needle tube to strike on the bottom shell of the nail to complete the firing.

[0018] A nail gun, comprising the nail gun firing assembly, the housing assembly and the heat insulation assembly, wherein the housing assembly and the heat insulation assembly are respectively sleeved on the outer periphery of the firing assembly.

[0019] In the nail gun provided by the present application, further, the housing assembly has a connecting seat and an outer tube, one end of the outer tube is threadedly connected to the end of the connecting seat, and a first step for supporting the tube seat is provided in the connecting seat.

[0020] In the nail gun provided by the present application, further, the heat insulation assembly includes a limiting body, the limiting body is threadedly connected to one end of the outer tube, and its end abuts against the third ring on the seat body.

[0021] In the nail gun provided by the present application, further, the heat insulation assembly includes a heat insulation movable sleeve, the heat insulation movable sleeve is sleeved on the outer periphery of the limiting body, and a second boss in the shape of a ring is provided inside it, and the second boss is matched and limited with the fifth ring located on the outer periphery of the limiting body.

[0022] In the nail gun provided by the present application, further, a sixth ring is connected to the outer periphery of the limiting body, and the outer peripheries of the sixth ring and the fifth ring are supported on the inner pipe wall of the heat insulation movable sleeve.

[0023] In the nail gun provided by the present application, further, the heat insulation assembly includes a silencing support sleeved in the heat insulation movable sleeve, and the flange at the end of the silencing support is supported on the end face of the heat insulation movable sleeve.

[0024] In the nail gun provided by the present application, further, the heat insulation assembly includes a third spring, one end of the third spring is sleeved on the outer ring of the silencing support, and the other end is supported on the second step located in the limiting body.

[0025] In the nail gun provided by the present application, further, the heat insulation assembly includes a nail tube sleeved in the silencing support, and a plurality of through holes are provided on the nail tube, the through holes are divided into air outlet holes and ventilation holes, the air outlet holes are obliquely communicated with the inner channel of the nail tube, and the ventilation holes are obliquely or vertically communicated with the inner channel of the nail tube; an adjusting ring is connected to the ventilation hole, and the adjusting ring can be used to control the opening and closing of the corresponding ventilation hole.

[0026] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0027] During the energy storage process of the first spring, the pipe seat approaches the seat body and extends into the first through groove of the seat body. The triggering part at one end of the pipe seat will contact the safety pin of the safety device. Subsequently, the triggering part pushes the safety pin to move into the second groove. When the safety pin completely enters the second groove, the energy stored in the first spring is instantly released, pushing the entire shaft rod to slide in the second through groove, and then pushing the firing pin to move in the first direction to strike the bottom shell of the nail. In the technical solution of the present application, through the cooperation of the first through groove, the second through groove, the safety device and the triggering part, the firing process is completed. There is no need to open a sliding groove on the pipe seat, which not only solves the jamming phenomenon of the firing pin caused by the sliding groove, but also reduces the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Structural schematic diagram of the firing assembly of the present application;

[0029] Figure 2 Structural schematic diagram of the pipe seat in the firing assembly of the present application;

[0030] Figure 3 Structural schematic diagram of the shaft rod and the safety device in the firing assembly of the present application;

[0031] Figure 4 Structural schematic diagram of the firing pin in the firing assembly of the present application;

[0032] Figure 5 Structural schematic diagram of the seat body in the firing assembly of the present application;

[0033] Figure 6 Structural schematic diagram of the needle tube in the firing assembly of the present application;

[0034] Figure 7 Structural schematic diagram of the housing assembly of the present application;

[0035] Figure 8 Structural schematic diagram of the connecting seat in the housing assembly of the present application;

[0036] Figure 9 Structural schematic diagram of the outer tube in the housing assembly of the present application;

[0037] Figure 10 Schematic diagram of the heat insulation assembly of the present application;

[0038] Figure 11 Structural schematic diagram of the limiting body in the heat insulation assembly of the present application;

[0039] Figure 12 Structural schematic diagram of the heat insulation movable sleeve in the heat insulation assembly of the present application;

[0040] Figure 13 Structural schematic diagram of the silencing support in the heat insulation assembly of the present application;

[0041] Figure 14 Schematic diagram of the nail tube structure in the heat insulation component of this application;

[0042] Figure 15 Schematic diagram of the overall structure of the nail shooter when it is reset in this application;

[0043] Figure 16 Schematic diagram of the overall structure of the nail shooter when it is fired in this application;

[0044] Label description:

[0045] 100, heat insulation component;

[0046] 110, limiting body; 111, second external thread; 112, fifth ring; 113, sixth ring; 114, second step;

[0047] 120, heat insulation movable sleeve; 121, second boss; 122, third external thread;

[0048] 130, silencing support; 131, ninth tube body; 132, third step; 133, end flange;

[0049] 140, third spring;

[0050] 150, nail tube; 151, tenth tube body; 152, seventh ring; 153, through hole; 1531, air outlet hole; 1532, ventilation hole; 154, inner channel;

[0051] 160, adjusting ring;

[0052] 170, cover;

[0053] 180, protective tube;

[0054] 190, corner piece positioning seat;

[0055] 200, firing component;

[0056] 210, tube base; 211, fourth tube body; 212, fifth tube body; 213, sixth tube body; 214, first ring; 215, trigger part; 216, inner chamfer; 217, first limiting surface; 218, second limiting surface;

[0057] 220, shaft rod; 221, rod body; 222, safety seat; 223, first shaft hole; 224, first pin shaft; 225, first groove; 226, second groove;

[0058] 230, safety device; 231, safety pin; 232, safety spring;

[0059] 240, first spring;

[0060] 250. Firing pin; 251. Needle base; 252. Needle body; 253. Needle tip; 254. Second shaft hole; 255. Second pin shaft;

[0061] 260. Base body; 261. Seventh tube body; 262. Eighth tube body; 263. Second ring; 264. Third ring; 265. First through groove; 266. Second through groove; 267. First boss;

[0062] 270. Second spring;

[0063] 280. Needle tube; 281. Guide tube section; 282. Stop block; 283. Needle hole; 284. Fourth ring; 285. Base platform;

[0064] 300. Housing assembly;

[0065] 310. Connecting seat; 311. First tube body; 312. Second tube body; 313. First internal thread; 314. Second internal thread; 315. First step; 316. Annular inclined surface;

[0066] 320. Outer tube; 321. Third lower tube body; 322. Third upper tube body; 323. First external thread; 324. Third internal thread;

[0067] 330. Protective sleeve;

[0068] 400. Nail. Detailed implementation manner

[0069] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the drawings and embodiments.

[0070] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of this application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances so as to implement the embodiments of the present application described here. In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0071] Figure 15 Disclosed is a nail gun, which is assembled by a heat insulation component 100, a firing component 200 and a housing component 300. The ends of the heat insulation component 100 and the housing component 300 are coaxially connected by a threaded connection method. The firing component 200 is assembled inside the heat insulation component 100 and the housing component 300. The heat insulation component 100 is entirely located at the front end of the nail gun and is used to absorb and vent the heat and gas generated by firing a nail 400. The housing component 300 is used to support the energy storage and firing of the firing component 200. The firing component 200 is used to shoot a firing pin at the nail 400, so that the firing pin impacts on the bottom shell of the nail 400, firing the solid medicine (such as nitrocellulose) inside the bottom shell of the nail 400. The impact force generated by the solid medicine acts on the body of the nail 400, causing the nail 400 to be driven into a fixing object such as a wall to achieve the purpose of fixing the product.

[0072] The housing component 300

[0073] As Figure 7 shown, the housing component 300 includes a connecting seat 310, an outer tube 320 and a protective sleeve 330.

[0074] As Figure 8 shown, the connecting seat 310 is located at the bottom of the nail gun. The connecting seat 310 includes a first tube body 311 and a second tube body 312, and the first tube body 311 and the second tube body 312 are coaxially and integrally connected. A first internal thread 313 is provided inside the first tube body 311, and the first internal thread 313 is used to connect an auxiliary part. The outer diameter of the second tube body 312 is larger than that of the first tube body 311, and a second internal thread 314 is provided inside it. A first step 315 is provided under the second internal thread 314. An annular inclined surface 316 is provided under the first step 315.

[0075] As Figure 9 shown, the outer tube 320 is coaxially and threadedly connected to the second internal thread 314 of the connecting seat 310. The outer tube 320 includes a third lower tube body 321 and a third upper tube body 322. A first external thread 323 is provided at the bottom of the third lower tube body 321, and the first external thread 323 is threadedly connected to the second internal thread 314. A third internal thread 324 is provided at the upper end of the third upper tube body 322.

[0076] The protective sleeve 330 is sleeved on the outer tube 320. Specifically, the outer diameter of the third lower tube body 321 is adapted to the inner diameter of the protective sleeve 330, so that the protective sleeve 330 can be sleeved on the outer diameter of the third lower tube body 321.

[0077] The firing component 200

[0078] As Figure 1As shown, the firing assembly 200 includes a socket 210, a shaft rod 220, a safety device 230, a first spring 240, a firing pin 250, a seat body 260, a second spring 270, and a needle tube 280.

[0079] As Figure 2 shown, the socket 210 has a fourth tube body 211, a fifth tube body 212, and a sixth tube body 213. The fourth tube body 211, the fifth tube body 212, and the sixth tube body 213 are coaxially connected in sequence. The outer diameter of the fifth tube body 212 is larger than that of the fourth tube body 211. A first ring 214 is integrally connected to the outer periphery of the fifth tube body 212, and the first ring 214 is used to support on the first step 315 inside the connecting seat 310. One end of the fourth tube body 211 away from the connecting seat 310 has a triggering portion 215, and the triggering portion 215 is preferably an inner chamfer 216. The socket 210 further includes a first limiting surface 217 and a second limiting surface 218. When the first limiting surface 218 contacts the bottom end surface of the seat body 260, it is limited, and when the second limiting surface 218 contacts the top surface of the first through groove 265 of the seat body 260, it is limited. The first limiting surface 217 and the second limiting surface 218 can be used for mutual limitation between the socket 210 and the seat body 260 to limit the relative movement distance between the socket 210 and the seat body 260 to ensure firing stability.

[0080] As Figure 3 shown, the shaft rod 220 includes a rod body 221 and a safety seat 222 connected to one end of the rod body 221. A first shaft hole 223 is provided at the bottom of the shaft rod 220, and the bottom of the shaft rod 220 is positioned on the outer end surface of the bottom of the socket 210 by cooperating with the first shaft hole 223 through a first pin shaft 224. The safety seat 222 is in the shape of a cylinder, and a first groove 225 is provided on the top end surface thereof, and the first groove 225 is coaxially arranged with the safety seat 222. A second groove 226 is formed on the outer periphery of the safety seat 222, and the axis of the second groove 226 is perpendicular to the axis of the safety seat 222. The safety device 230 is located in the second groove 226. Specifically, the safety device 230 includes a safety pin 231 and a safety spring 232. The safety spring 232 is located in the second groove 226, and it supports the safety pin 231 to elastically slide in the second groove 226. When the safety spring 232 is freely extended, the safety pin 231 partially extends out of the second groove 226. The first spring 240 is sleeved on the rod body 221 of the shaft rod 220, one end of which abuts against the safety seat 222, and the other end abuts against the bottom surface of the socket 210. The first spring 240 is used to reset the shaft rod 220 after the shaft rod 220 slides under force in the socket 210.

[0081] As Figure 4As shown in the figure, the firing pin 250 is coaxially connected to the shaft rod 220. The firing pin 250 has a pin base 251, a pin body 252, and a pin tip 253. The pin base 251 is adapted to the shape of the first groove 225 so that the pin base 251 can be placed in the first groove 225. The pin base 251 has a second shaft hole 254. The pin base 251 is fixed in the first groove 225 through the second shaft hole 254 and the second pin shaft 255. The pin body 252 is integrally connected to the pin base 251. The pin body 252 is an elongated cylindrical structure, and its top is integrally connected to the pin tip 253. The pin tip 253 is used to strike the bottom shell of the nail to fire the drug in the nail.

[0082] As Figure 5 shown in the figure, the seat body 260 is sleeved outside the firing pin 250. The seat body 260 is a cylindrical tube. The seat body 260 includes a seventh tube body 261 and an eighth tube body 262. A protruding second ring 263 is integrally connected to the outer circle of the seventh tube body 261, and a protruding third ring 264 is provided at the bottom of the eighth tube body 262. A first through groove 265 and a second through groove 266 are provided in the seat body 260. The first through groove 265 and the second through groove 266 are coaxially arranged. The inner diameter of the first through groove 265 is larger than the inner diameter of the second through groove 266. The first through groove 265 and the second through groove 266 are sleeved with a safety seat 222. When the nail gun is in the reset state, the exposed part of the safety pin 231 of the safety device 230 is located in the first through groove 265 and abuts against the step between the first through groove 265 and the second through groove 266. A first boss 267 is provided in the eighth tube body 262.

[0083] The second spring 270 is sleeved between the first ring 214 and the second ring 263. The second spring 270 is used to restore the seat body 260 after it is moved.

[0084] As Figure 6 shown in the figure, the needle tube 280 is coaxially connected to the first boss 267 of the eighth tube body 262, and can be detachably connected or integrally connected. The needle tube 280 includes a seat platform 285. The seat platform 285 is engaged in the groove formed by the first boss 267 of the eighth tube body 262. A fourth ring 284 is coaxially and integrally connected to the seat platform 285. The fourth ring 284 supports at the end of the eighth tube body 262. A guiding tube section 281 is coaxially and integrally connected to the fourth ring 284. The guiding tube section 281 is hollow inside and is used to accommodate the pin body 252 and the pin tip 253 of the firing pin 250. The pin body 252 and the pin tip 253 of the firing pin 250 extend and retract along the length direction of the guiding tube section 281 inside the guiding tube section 281. A stop block 282 is provided inside the end of the guiding tube section 281. The center of the stop block 282 has a needle hole 283, and the needle hole 283 is adapted for the pin tip 253 to pass through.

[0085] During the energy storage process of the first spring 240, the socket 210 approaches the seat body 260 and extends into the first through groove 265 of the seat body 260. The trigger part 215 at one end of the socket 210 will contact the safety pin 231 of the safety device 230. The trigger part 215 then pushes the safety pin 231 to move into the second groove 226. When the safety pin 231 completely enters the second groove 226, the energy stored in the first spring 240 is instantly released, pushing the entire shaft rod 220 to slide in the second through groove 266, and further pushing the firing pin 250 to move in the first direction to strike the bottom shell of the nail 400. In the technical solution of the present application, through the cooperation of the first through groove 265 and the second through groove 266, as well as the safety device 230 and the trigger part 215, the firing process is completed. There is no need to open a sliding groove on the socket 210, which not only solves the problem of jamming of the firing pin caused by the sliding groove, but also reduces the processing cost.

[0086] Heat insulation assembly 100

[0087] As Figure 10 shown, the heat insulation assembly 100 includes a limiting body 110, a heat insulation movable sleeve 120, a silencing support 130, a third spring 140, a nail tube 150, an adjusting ring 160, a cover 170, a protective tube 180, and a corner piece positioning seat 190.

[0088] As Figure 11 shown, the limiting body 110 is a tube structure. The bottom of the limiting body 110 is provided with a second external thread 111, which is threadedly connected to the third internal thread 324. A fifth ring 112 and a sixth ring 113 are also provided on the outer periphery of the limiting body 110. A second step 114 is provided inside the limiting body 110.

[0089] As Figure 12 shown, the heat insulation movable sleeve 120 is sleeved on the outer periphery of the limiting body 110. The heat insulation movable sleeve 120 is a tube structure, and a second boss 121 in the shape of a ring is provided inside it. The second boss 121 and the fifth ring 112 cooperate with each other for limiting to prevent the limiting body 110 from detaching from the bottom of the heat insulation movable sleeve 120. The outer peripheries of the fifth ring 112 and the sixth ring 113 support on the inner pipe wall of the heat insulation movable sleeve 120 to play an axial guiding role. A third external thread 122 is also provided on the outer periphery of the heat insulation movable sleeve 120. The cover 170 is threadedly connected to the third external thread 122, and the cover 170 plays a protective role. The protective tube 180 is threadedly connected to the bottom of the cover 170.

[0090] As Figure 13 shown, the silencing support 130 is sleeved inside the heat insulation movable sleeve 120, and its end flange 133 supports on the end face of the heat insulation movable sleeve 120. A ninth tube body 131 is provided at the bottom of the silencing support 130. A third step 132 is provided inside the silencing support 130.

[0091] One end of the third spring 140 is connected to the silencing support 130, and the other end is supported on the limiting body 110, which is used for the silencing support 130 to reset after moving. Specifically, one end of the third spring 140 is sleeved on the ninth tube body 131, and the other end is supported on the second step 114 of the limiting body 110.

[0092] As Figure 14 shown, the nail tube 150 includes a tenth tube body 151, and a protruding seventh ring 152 is provided on the outer periphery of the tenth tube body 151. A plurality of through holes 153 are also provided on the tenth tube body 151. The plurality of through holes 153 include an air outlet hole 1531 and a ventilation hole 1532. The air outlet hole 1531 and the ventilation hole 1532 are respectively located on both sides of the seventh ring 152. The air outlet hole 1531 is inclined and communicated with the inner channel 154 of the nail tube 150, and the drug gas after firing is discharged from the air outlet hole 1531 out of the nail tube 150. The ventilation hole 1532 is inclined or vertically communicated with the inner channel 154 of the nail tube 150. An adjusting ring 160 is connected to the ventilation hole 1532, and the adjusting ring 160 can be used to control the opening and closing of the corresponding ventilation hole 1532, so as to change and adjust the drug emission power. The upper section of the inner channel 154 of the nail tube 150 is used to place the nails 400 to be launched. The lower section is used to accommodate the syringe tube 280 of the firing assembly 200, so that the firing pin 250 emitted from the syringe tube 280 can directly hit the bottom shell of the nail 400.

[0093] A corner piece positioning seat 190 is also threadedly connected to the nail tube 150 for fixing and positioning the nails 400.

[0094] Assembly method of the nail gun

[0095] Assembly of the firing assembly 200

[0096] D1: Sleeve the first spring 240 onto the rod body 221 of the shaft rod 220 from the bottom of the shaft rod 220;

[0097] D2: Insert the bottom end of the shaft rod 220 into the tube seat 210, and use a pin shaft to pass through the first shaft hole 223 at the bottom of the shaft rod 220 to position the bottom of the shaft rod 220 on the outer end face of the bottom of the tube seat 210; Place the bottom of the firing pin 250 in the first groove 225 of the safety seat 222, and fix the pin seat 251 of the firing pin 250 in the second shaft hole 254 through the second pin shaft 255; Install the safety spring 232 and the safety pin 231 into the second groove 226;

[0098] D3: Sleeve one end of the second spring 270 onto the fifth tube body 212 of the tube seat 210;

[0099] D4: Sleeve the seat body 260 onto the shaft rod 220, and make the second ring 263 on the seventh tube body 261 of the seat body 260 press against the other end of the second spring 270;

[0100] D5: Coaxially place the syringe 280 on the first boss 267 of the seat body 260, such that the tip 253 of the firing pin 250 is partially inside the syringe 280, and the safety pin 231 is located within the first through slot 265;

[0101] Partial assembly of the housing assembly 300

[0102] D6: Fit the protective sleeve 330 over the third lower tube body 321 of the outer tube 320;

[0103] D7: Thread the first external thread 323 of the third lower tube body 321 onto the second internal thread 314 of the connection base 310;

[0104] Assembly of the heat insulation assembly 100

[0105] D8: Pass the limiting body 110 through the heat insulation movable sleeve 120, such that the fourth ring 284 of the limiting body 110 abuts against the second boss 121 of the movable heat insulation sleeve;

[0106] D9: Insert the third spring 140 into the limiting body 110, and seat one end of the third spring 140 on the second step 114 of the limiting body 110;

[0107] Assembly

[0108] D10: Insert the assembled firing assembly 200 into the housing assembly 300, and thread the limiting body 110 of the heat insulation assembly 100 onto the outer tube 320 of the housing assembly 300. The bottom of the limiting body 110 presses against the third ring 264 of the seat body 260 in the firing assembly 200 to fix the firing assembly 200;

[0109] D11: Fit the ninth tube body 131 of the silencing support 130 over one end of the third spring 140;

[0110] D12: Install the adjusting ring 160 at the vent hole 1532 of the nail tube 150;

[0111] D13: Insert the nail tube 150 into the silencing support 130, and seat the bottom of the nail tube 150 on the third step 132;

[0112] D14: Thread the protective tube 180 onto the bottom of the cover 170, and thread the cover 170 onto the third external thread 122 of the heat insulation movable sleeve 120;

[0113] D15: Thread the angle piece positioning base 190 onto the top of the nail tube 150.

[0114] Working principle

[0115] When the nail gun starts to work, load the nail 400 into the nail tube 150 and align it with the place where the nail 400 needs to be fixed.

[0116] As shown Figures 15 - 16 below, the firing process is as follows:

[0117] S1: Insert the nail 400 into the nail tube 150 and align it with the place to be fixed;

[0118] S2: Hold the housing assembly 300 by hand and push it in the first direction, so that the housing assembly 300 and its connected firing assembly 200 slide along the first direction, and the third spring 140 begins to be compressed and store energy;

[0119] S3: After the needle tube 280 of the firing assembly 200 touches the bottom shell of the nail 400, stop moving in the first direction; and the housing assembly 300 continues to slide in the first direction, and the second spring 270 begins to be compressed and store energy;

[0120] S4: The safety pin 231 of the safety device 230 contacts and jams at the bottom of the first through groove 265 of the seat body 260, and drives the first spring 240 to start storing energy;

[0121] S5: The fourth tube body 211 of the tube seat 210 extends into the first through groove 265, and its trigger part 215 contacts the safety pin 231, pushing the safety pin 231 to move and enter the second groove 226;

[0122] S6: The first spring 240 instantaneously releases the stored energy, pushing the shaft rod 220 to slide in the second through groove 266, and then pushing the firing pin 250 to strike the bottom shell of the nail 400 to complete the firing of the nail 400;

[0123] S7: Release the housing assembly 300, and the third spring 140 begins to release the stored energy, resetting the silencer support 130 and the limit body 110;

[0124] S8: The second spring 270 begins to release the stored energy, causing the shaft rod 220 to slide and reset in the second direction, and the safety pin 231 exits the second through groove 266 and returns to the first through groove 265 again.

[0125] Grip the housing assembly 300 of the nail gun and axially push the housing assembly 300 in the first direction. The housing assembly 300 and the connected firing assembly 200 slide along the first direction, and at the same time, the third spring 140 starts to be compressed and store energy. During the energy storage process of the first spring 240, the needle tube 280 of the firing assembly 200 will first contact the bottom shell part of the nail 400 (the other end of the nail 400 is pressed against the wall). As the housing assembly 300 continues to move in the first direction, the firing assembly 200 stops moving in the first direction under the block of the bottom shell of the nail 400. At this time, as the housing assembly 300 continues to move in the first direction, taking the housing assembly 300 as a reference, the firing assembly 200 moves relative to the housing assembly 300 in the second direction, and at this time, the second spring 270 starts to store energy. During the energy storage process of the second spring 270, the safety pin 231 of the safety device 230 will contact and get stuck at the bottom of the first through groove 265 of the seat body 260, and then drive the first spring 240 to start storing energy. During the energy storage process of the first spring 240, the fourth tube body 211 of the tube seat 210 extends into the first through groove 265 of the seat body 260, and finally makes the trigger part 215 of the tube seat 210 contact the safety pin 231 of the safety device 230. The trigger part 215 pushes the safety pin 231 to move into the second groove 226. When the safety pin 231 completely enters the second groove 226, the energy stored in the first spring 240 is instantly released, pushing the entire shaft rod 220 to slide in the second through groove 266, and then pushing the firing pin 250 to move in the first direction, hitting the bottom shell of the nail 400.

[0126] Reset process after firing

[0127] After firing, release the housing assembly 300. The third spring 140 starts to release the stored energy, resetting the silencer support 130 and the limit body 110. The second spring 270 starts to release the stored energy, sliding the shaft rod 220 back to its original position in the second direction, and making the safety pin 231 return from the second through groove 266 back into the first through groove 265, completing the entire reset.

[0128] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A nail gun firing assembly, characterized in that: include A tube seat (210), wherein the tube seat (210) is a hollow tube structure, and a trigger portion (215) is provided at one end of the tube seat; A shaft rod (220), one end of the shaft rod (220) being sleeved in the tube seat (210), and the end of the shaft rod (220) being limited at the bottom of the tube seat (210); the other end of the shaft rod (220) being fixedly connected to a safety seat (222), and a second groove (226) being formed on the outer circumference of the safety seat (222); a safety device (230), the safety device (230) being located in the second groove (226), comprising a safety pin (231) and a safety spring (232), the safety spring (232) being in contact with the bottom of the second groove (226) and supporting the safety pin (231) to slide elastically in the second groove (226); A first spring (240) is sleeved on the shaft (220), one end of which is connected to the bottom of the safety seat (222) and the other end of which is pressed against the bottom of the pipe seat (210); A seat body (260), wherein a first through slot (265) and a second through slot (266) are coaxially arranged inside the seat body (260), and the safety device (230) is located in the first through slot (265) to prevent the safety seat (222) from sliding freely along the second through slot (266); The trigger portion (215) contacts and pushes the safety pin (231) into the second groove (226), so that the first spring (240) pushes the safety seat (222) to be ejected axially along the second through groove (266).

2. The nail shooter firing assembly according to claim 1, characterized in that: The trigger portion (215) is provided with an inner chamfer (216) at the end of the tube seat (210).

3. The nail shooter firing assembly according to claim 1, characterized in that: The tube seat (210) further comprises a first limiting surface (217) and / or a second limiting surface (218), wherein the first limiting surface (217) is limited when in contact with the bottom end surface of the seat body (260); and the second limiting surface (218) is limited when in contact with the top surface of the first through groove (265).

4. The nail shooter firing assembly according to claim 1, characterized in that: The nail shooter firing assembly (200) comprises a second spring (270), the two ends of the second spring (270) respectively pressing against a first circular ring (214) connected to the outer periphery of the tube seat (210) and a second circular ring (263) connected to the outer periphery of the seat body (260).

5. The nail shooter firing assembly according to claim 1, characterized in that: The nail shooter firing assembly (200) comprises a firing pin (250) fixed to one end of the shaft (220) and a needle tube (280) sleeved on the firing pin (250), wherein the bottom of the needle tube (280) is coaxially connected to the top of the seat body (260).

6. A nail shooter, characterized in that: It comprises a nail gun firing assembly (200) as claimed in any one of claims 1 to 5, a shell assembly (300) and a heat insulation assembly (100), wherein the shell assembly (300) and the heat insulation assembly (100) are respectively fitted on the outer periphery of the firing assembly (200).

7. The nail shooter according to claim 6, characterized in that: The housing assembly (300) comprises a connection seat and an outer tube (320); one end of the outer tube (320) is threadedly connected to the end of the connection seat; a first step (315) for supporting the tube seat (210) is provided in the connection seat.

8. The nail shooter according to claim 7, characterized in that: The heat insulation assembly (100) comprises a limiting body (110), the limiting body (110) being threadedly connected to one end of the outer tube (320), and the end of the limiting body (110) being pressed against a third circular ring (264) on the seat body (260).

9. The nail shooter according to claim 8, characterized in that: The heat insulation assembly (100) comprises a heat insulation movable sleeve (120), the heat insulation movable sleeve (120) being sleeved on the outer circumference of the limiting body (110), and a second annular boss (121) being provided inside the heat insulation movable sleeve, and the second boss (121) cooperates with a fifth annular ring (112) located on the outer circumference of the limiting body (110) to limit the position.

10. The nail shooter according to claim 9, characterized in that: A sixth circular ring (113) is connected to the outer periphery of the limiting body (110), and the outer peripheries of the sixth circular ring (113) and the fifth circular ring (112) are supported on the inner tube wall of the heat-insulating movable sleeve (120).

11. The nail shooter according to claim 10, characterized in that: The heat insulation component (100) comprises a silencer support (130) sleeved in the heat insulation movable sleeve (120), wherein a flange at an end of the silencer support (130) is supported on an end surface of the heat insulation movable sleeve (120).

12. The nail shooter according to claim 11, characterized in that: The heat insulation assembly (100) comprises a third spring (140), one end of the third spring (140) being sleeved on the outer ring of the silencer support (130), and the other end of the third spring (140) being supported on a second step (114) located inside the limiting body (110).

13. The nail shooter according to claim 11, characterized in that: The heat insulation component (100) comprises a nail tube (150) sleeved in the silencer support (130), the nail tube (150) being provided with a plurality of through holes (153), the through holes (153) being divided into air outlet holes (1531) and air vents (1532), the air outlet holes (1531) being obliquely connected to an inner channel (154) of the nail tube (150), and the air vents (1532) being obliquely or vertically connected to an inner channel (154) of the nail tube (150); an adjustment ring (160) being connected to the air vents (1532), the adjustment ring (160) being used to control the opening and closing of the corresponding air vents (1532).

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