CN210939116U

CN210939116U - Nail shooting tool

Info

Publication number: CN210939116U
Application number: CN201921840556.6U
Authority: CN
Inventors: 杨东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-07-07
Anticipated expiration: 2029-10-30

Abstract

The utility model provides a nail shooting tool, which comprises a nail pipe, wherein a power adjusting channel is arranged on the nail pipe, a power adjusting sleeve is sleeved on the nail pipe, an inner concave part is arranged on the inner wall of the power adjusting sleeve, and the power adjusting channel can correspond to the inner concave part of the inner wall of the power adjusting sleeve by rotating the power adjusting sleeve; each group of power adjusting channels are arranged in the same height relative to the same end of the nail pipe, and the pressure relief amount of different groups of power adjusting channels in unit time is different. Adopt the utility model discloses penetrate nail instrument, not only can be directly perceived, realize power grade adjustment fast, the operation of adjusting power grade moreover is very simple and convenient, need not to dismantle power adjusting collar and nail pipe.

Description

Nail shooting tool

Technical Field

The utility model relates to a shoot nail instrument.

Background

At present, the explosive power of a nail shooting bullet of a nail shooter is designed according to higher strength so as to avoid the phenomenon of incapability of shooting. However, when such forces are applied to substrates with lower fastening strength (e.g., wood, plastic, hollow brick), damage to the substrate or the fastened device by the nail can result. Based on the above, document CN208977722U discloses an adjustable power type axial nail shooter, which comprises a nail tube and a firing pin sleeve, wherein the wall of the nail tube is provided with one or more pressure relief through holes, and a power adjusting device is arranged on the wall of the nail tube, the power adjusting device can block the pressure relief through holes, internal threads are arranged in the pressure relief through holes, the power adjusting device is a cylinder, external threads a are arranged outside the cylinder, and the internal threads and the external threads a are matched to realize screwing; document CN109719680A discloses a power-adjustable launching mechanism, which comprises a launching tube, a silencing cover and a power adjusting sleeve; the power adjusting sleeve is rotatably sleeved at the rear end of the launching tube, and the inner wall of the power adjusting sleeve is also provided with an exhaust groove; the front end of the silencing cover is fixed at the front end of the launching tube, the rear end of the silencing cover is fixedly sleeved on the power adjusting sleeve, and a slag collecting bin is formed between the outer wall of the launching tube and the inner wall of the silencing cover; the launching tube is also provided with an exhaust hole and a power adjusting hole, the exhaust hole communicates the interior of the launching tube with the slag collecting bin, and the power adjusting hole corresponds to the exhaust groove. The nail shooter or firing mechanism as described above still has disadvantages during use: the power adjustment operation is inconvenient; the situation that the shell loading and the shell unloading are not smooth easily occurs in the using process.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to provide a nail shooting tool which is convenient to adjust and operate.

A nail shooting tool comprises a nail pipe, wherein a power adjusting channel is arranged on the nail pipe, a power adjusting sleeve is sleeved on the nail pipe, an inner concave part is arranged on the inner wall of the power adjusting sleeve, and the power adjusting channel can correspond to the inner concave part of the inner wall of the power adjusting sleeve by rotating the power adjusting sleeve; each group of power adjusting channels are arranged in the same height relative to the same end of the nail pipe, and the pressure relief amount of different groups of power adjusting channels in unit time is different.

Preferably, holes with different diameters are adopted in different groups of power adjusting channels to realize different pressure relief amounts in unit time.

Furthermore, different groups of power adjusting channels adopt different numbers of holes to realize different pressure relief amounts in unit time. Furthermore, different groups of power adjusting channels adopt holes with different diameters and different numbers to realize different pressure relief amounts in unit time. By adopting the structure, the problem that the projectile is loaded and the shell is not smoothly withdrawn can be solved.

Preferably, a dust cover is arranged on the nail tube, and the power adjusting sleeve is locked on the nail tube by the dust cover.

In order to further simplify the structure and simplify the power adjusting operation, the dust cover is propped against the power adjusting sleeve, and the power adjusting sleeve is directly locked on the nail tube through the dust cover.

In order to further facilitate the adjustment and the use, the outer wall of the nail tube is provided with a power grade mark.

Preferably, the power level mark comprises an indicating line which is arranged on the outer wall of the power adjusting sleeve and corresponds to the concave part, and power level scales which are arranged at the corresponding positions of the power adjusting channels, and after the power adjusting sleeve is rotated to enable the indicating line to be aligned with the power level scales, the power adjusting channels of the levels are aligned with the concave part.

Preferably, the power level scale can be marked by numbers or lines; more preferably, the power level scale is arranged on the position on the nail tube or the nail tube seat convenient for observation.

As the preferred scheme of the utility model, the nail shooting tool comprises a shell, a firing pin component, a firing pin sleeve, a firing component and a nail tube, wherein the firing pin component, the firing pin sleeve and the firing component are arranged in the shell, and the nail tube is arranged at the front part of the shell; the shell comprises a firing cylinder, a connecting cylinder movably arranged at the front part of the firing cylinder and a needle striking cylinder arranged at the front part of the connecting cylinder, wherein the outer wall of the firing cylinder is provided with a spring A; before firing, the hair stopping key of the firing pin component is clamped at the rear end of the firing pin sleeve, and when the hair stopping key of the firing pin component is contacted with a slope surface arranged in the firing cylinder and is pressed, the hair stopping key slides into the inner cavity of the firing pin sleeve to achieve firing.

Except for special description, the orientation terms such as front and back of the utility model are defined based on the firing pin launching direction and the attached drawings, the advancing direction after firing pin launching is called the front, if the front end is the left end in the attached drawings, the back end is the right end in the attached drawings.

Furthermore, the firing pin assembly comprises a firing pin seat, the front part of the firing pin seat is connected with a firing pin, and the rear part of the firing pin seat is connected with the firing assembly; be provided with the shoulder hole on hitting the needle file, be used for installing only to send out key and pressure spring in the shoulder hole, pressure spring upper end butt (the butt means to lean on the contact) only send out protruding along A of key head (only send out key upper portion promptly), the rank mesa of pressure spring lower extreme butt shoulder hole, the protruding along B joint in hitting the needle file outer wall of only sending out key afterbody (only send out the key lower part promptly). By adopting the structure, the pressure spring and the hair-stopping key can be prevented from scattering, and a plurality of sets of spare parts do not need to be arranged for each product.

Furthermore, a spring retainer ring is arranged between the convex edge B at the tail part of the hair-stopping key and the outer wall of the firing pin seat.

Furthermore, the collision needle base is provided with a groove, the tail part of the hair-stop key is positioned in the groove, and the structure can prevent the nail shooting tool from being deadly clamped in the using process, so that the flexibility of the nail shooting tool is improved.

For further improvement the utility model discloses the row's of penetrating the nail instrument sediment, heat dispersion, firing pin seat outer wall part is clearance fit with firing pin sleeve pipe inner wall. Preferably, the striker base is a non-standard cylinder with a lateral edge, and the circular arc surface of the non-standard cylinder is in clearance fit with the inner wall of the striker sleeve. Adopt such structure can realize the axial heat dissipation, arrange the sediment, prevent that the residue from long-pending in penetrating the nail instrument, conveniently clear up simultaneously and penetrate the nail instrument.

In order to further improve the stability of the nail shooting tool in the using process, a pin hole is formed in the firing cylinder, a strip-shaped hole is axially formed in the firing pin sleeve, and the limiting pin is arranged in the pin hole and the strip-shaped hole in a matched mode. By adopting the structure, radial heat dissipation and slag discharge can be realized, and residues are prevented from being accumulated in the nail shooting tool better.

In order to further improve the stability of the nail shooting tool in the using process, an annular convex edge is arranged on the firing pin sleeve, and the annular convex edge is in clearance fit with the inner wall of the firing pin barrel. By adopting the structure, part of the elastic nail residues can be blocked at the front part of the firing pin sleeve, and the elastic nail residues can be poured out only by detaching the nail tube during cleaning, so that the structure is very convenient.

Furthermore, an annular boss is arranged at the front part of the firing cylinder, a spring B is arranged on the firing pin sleeve, one end of the spring B is abutted against the annular convex edge of the firing pin sleeve, and the other end of the spring B is abutted against the annular boss. By adopting the structure, the automatic resetting of the striker sleeve can be realized, and the striker sleeve can be rapidly guided to move forwards.

As the utility model discloses a preferred scheme, the firing subassembly includes guide bar and firing spring, and the firing spring front portion is supported and is leaned on and overlap and establish on hitting the needle file, and the firing spring rear portion is supported and is leaned on and overlap and establish on the guide bar.

In order to improve the stability of the nail shooting tool in the using process, the nail tube is arranged at the front end of the needle striking cylinder, and the front part of the striker sleeve can extend into the inner cavity of the nail tube and slide along the axial direction of the nail tube.

Furthermore, a detachable plug is arranged at the rear end of the percussion cylinder, and the guide rod abuts against the plug.

Furthermore, the outer wall of the nail tube is provided with a dust cover and a nail tube seat, and the nail tube is connected with the collision needle cylinder through the nail tube seat.

In order to facilitate the operation and prevent scalding, a rubber sleeve is arranged outside the firing pin barrel.

Further, the connection form of the connecting cylinder and the needle striking cylinder is a threaded connection.

Furthermore, the nail tube is connected with the firing pin sleeve and the nail tube is connected with the firing pin cylinder in a threaded manner.

Has the beneficial effects.

By adopting the utility model, the power grade adjustment can be realized visually and rapidly, the operation of adjusting the power grade is very simple (only the dust cover needs to be loosened firstly during adjustment, then the power adjusting sleeve is rotated to a proper grade according to the scale mark, and then the dust cover is installed), and the power adjusting sleeve and the nail pipe do not need to be disassembled; the utility model discloses penetrate nail instrument, the hole that has adopted different quantity realizes that the pressure release volume in the unit interval is different or adopts the hole of different diameters and different quantity to realize that the pressure release volume in the unit interval is different, has reduced the diameter in single pressure release hole in other words for the cartridge case that produces after penetrating the nail bullet explosion can hardly get into or block power regulation passageway, thereby has solved the problem that the shell loading is difficult to be smooth and easy to appear in the use.

The utility model discloses penetrate nail instrument not only is applicable to high strength material fastening such as solid brick wall, the great steel sheet of thickness, is applicable to the less material fastening of intensity such as hollow brick wall, timber, plastics moreover.

The utility model skillfully adopts the rear end of the firing pin sleeve as the axial limiting part of the firing key, and can realize hanging at any position in the circumferential direction of the rear end of the firing pin sleeve, thereby greatly prolonging the service life of the nail shooting tool, which is at least 10 times of the service life of the nail shooting device disclosed in CN 207858758U; the utility model can realize radial and axial heat dissipation and slag discharge, has excellent heat dissipation performance, is convenient for cleaning internal residues, and does not need to completely disassemble the whole product into parts in the cleaning process; the utility model discloses penetrate nail instrument spare part and be difficult for scattering, need not to be equipped with many sets of reserve parts such as ending key, pressure spring, can practice thrift product manufacturing cost. The utility model has the advantages of convenient disassembly, cleaning and assembly, time and labor saving, less working procedures in the whole disassembly, cleaning and assembly process, time consumption of only about 30 seconds for skilled technicians, capability of completing assembly in about one minute even for ordinary personnel, and no clamping part phenomenon in the assembly process; the utility model has light weight, the weight is only about 2/3 of the traditional nail shooting tool, which is more beneficial to high-altitude operation; the utility model discloses penetrate nail instrument and adopt specific structural arrangement, more accord with workman's use custom, not only can stop the phenomenon of tong completely when penetrating the nail and move back the shell, thoroughly solved the scald hand problem that continuous use arouses moreover.

Drawings

FIG. 1 is a sectional view of a nailing tool (power adjusting part) in an embodiment;

FIG. 2 is a view taken along line A-A of FIG. 1;

FIG. 3 is a perspective view of the nailing tool (power adjusting part) in the embodiment;

FIG. 4 is a sectional view showing the structure of the nailing tool in the embodiment;

FIG. 5 is an enlarged view of portion A of the nailing tool of FIG. 1;

FIG. 6 is a block diagram of a firing barrel of the nailing tool of FIG. 1;

FIG. 7 is a schematic view of the firing pin sleeve of FIG. 1 engaged with the firing cartridge;

FIG. 8 is a schematic view of the firing pin sleeve, firing pin assembly and firing assembly of FIG. 1 engaged;

FIG. 9 is a side view of the striker mount of the nailing tool of FIG. 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following description of the embodiments is only for the purpose of helping understanding the principle and the core idea of the present invention, and is not intended to limit the scope of the present invention. It should be noted that modifications to the present invention by those of ordinary skill in the art without departing from the principles of the present invention are also within the scope of the claims.

Example 1

A nail shooting tool comprises a nail tube 2, a power adjusting channel 42 is arranged on the nail tube 2, a power adjusting sleeve 40 is sleeved on the nail tube 2, an inner concave part 41 is arranged on the inner wall of the power adjusting sleeve 40, and the power adjusting channel 42 can correspond to the inner concave part 41 on the inner wall of the power adjusting sleeve 40 by rotating the power adjusting sleeve 40; each group of power adjusting channels 42 are arranged in the same height relative to the same end of the nail tube 2, and the pressure relief amount of different groups of power adjusting channels 42 in unit time is different.

In a specific product, holes with different diameters can be adopted for different groups of power adjusting channels 42 to realize different pressure relief amounts in unit time; different groups of power adjusting channels 42 can adopt different numbers of holes to realize different pressure relief amounts in unit time; different groups of power regulating passages 42 can also adopt holes with different diameters and different numbers to realize different pressure relief amounts in unit time. The number of the through holes forming each group of power adjusting passages 42 may be one, two, or three or more. Theoretically, the larger the number of the through holes of each group of the power adjusting passage 42 is, the less likely the skull is to block the power adjusting passage 42.

In this embodiment, as shown in fig. 2, three groups of power adjusting channels 42 are provided on the nail tube 2, a through hole with a diameter of 1.5mm is adopted for the first group of power adjusting channels 421, a through hole with a diameter of 2mm is adopted for the second group of power adjusting channels 422, and two through holes with a diameter of 1.5mm are adopted for the third group of power adjusting channels 423.

In the embodiment, the dust cover 1 is arranged on the nail tube 2, the dust cover 1 abuts against the power adjusting sleeve 40, and the power adjusting sleeve 40 is directly locked on the nail tube 2 through the dust cover 1.

In the embodiment, as shown in fig. 3, the outer wall of the nail tube 2 is provided with the power level mark, the power level mark comprises an indication line 43 which is arranged on the outer wall of the power adjusting sleeve 40 and corresponds to the concave part 41, and a power level scale 44 which is arranged at a position corresponding to the power adjusting channel 42, and after the power adjusting sleeve 40 is rotated to enable the indication line 43 to align with the power level scale 44, the power adjusting channel 42 of the level aligns with the concave part 41.

By adopting the nail shooting tool of the embodiment, not only can the power level adjustment be intuitively and quickly realized, but also the operation of adjusting the power level is very simple and convenient (only the dust cover 1 needs to be loosened firstly during adjustment, then the power adjusting sleeve 40 is rotated to a proper level according to the scale marks, and then the dust cover 1 is installed), and the power adjusting sleeve 40 and the nail pipe 2 do not need to be disassembled; this embodiment ail shooter has adopted the hole of different quantity to realize that the pressure release volume in the unit interval is different or has adopted the hole of different diameters and different quantity to realize the pressure release volume difference in the unit interval, has reduced the diameter in single pressure release hole in other words for the cartridge case that produces after the nail shooting bullet explosion can hardly get into or block power regulation passageway, thereby has solved and has easily appeared the problem that the shell loading moves back the shell and is not smooth and easy in the use.

More specifically, as shown in FIGS. 4-9, includes a housing and a striker assembly, a striker sleeve 7, a firing assembly disposed within the housing, and a staple tube 2 disposed at the front of the housing; the shell comprises a firing cylinder 22, a connecting cylinder 16 movably arranged at the front part of the firing cylinder 22 and a needle impacting cylinder 4 arranged at the front part of the connecting cylinder 16, a power adjusting sleeve 40 is sleeved at the middle part of the nail tube 2 and is positioned between the needle impacting cylinder 4 and the nail tube seat 3, and a spring A17 is arranged on the outer wall of the firing cylinder 22; before firing, the hair stopping key 13 of the firing pin component is clamped at the rear end of the firing pin sleeve 7, and when the hair stopping key 13 of the firing pin component is contacted with a slope 23 arranged in a firing cylinder 22 and is pressed, the hair stopping key slides into the inner cavity of the firing pin sleeve 7 to achieve firing.

As shown in fig. 4 and 5, the firing pin assembly comprises a firing pin seat 11, a firing pin 24 is connected to the front part of the firing pin seat 11, and a firing assembly is connected to the rear part of the firing pin seat 11; a stepped hole 25 is arranged on the striker holder 11, a hair-stop key 13 and a pressure spring 26 are arranged in the stepped hole 25, the upper end of the pressure spring 26 abuts against a convex edge A27 of the head part of the hair-stop key 13 (namely, the upper part of the hair-stop key 13 shown in the figure), the lower end of the pressure spring 26 abuts against a step surface 28 of the stepped hole 25, and a convex edge B29 of the tail part of the hair-stop key 13 (namely, the lower part of the hair-stop key 13 shown in the figure) is clamped on the outer wall of the striker holder 11. With this structure, it is also possible to prevent the pressure spring 26 and the anti-rattle key 13 from scattering, without requiring a plurality of sets of spare parts for each product.

In this embodiment, the striker base 11 is provided with a groove 30, and the tail of the hair-stop key 13 is located in the groove 30. By adopting the structure, the nail shooting tool can be prevented from being deadly clamped in the use process, and the flexibility of the nail shooting tool is improved. In this embodiment, the outer wall of the striker base 11 is partially in clearance fit with the inner wall of the striker sleeve 7.

As shown in fig. 4 and 9, the striker holder 11 is a non-standard cylinder with side edges, and the circular arc surface 31 of the non-standard cylinder is in clearance fit with the inner wall of the striker sleeve 7. Adopt such structure can realize the axial heat dissipation, arrange the sediment, prevent that the residue from long-pending in penetrating the nail instrument, conveniently clear up simultaneously and penetrate the nail instrument.

As shown in fig. 4, 6, and 7, the firing cylinder 22 is provided with a pin hole 32, the striker sleeve 7 is axially provided with a strip-shaped hole 33, and the stopper pin 10 is fitted into both the pin hole 32 and the strip-shaped hole 33. By adopting the structure, radial heat dissipation and slag discharge can be realized, and residues are prevented from being accumulated in the nail shooting tool better.

As shown in fig. 4 and 7, the striker receiving sleeve 7 is provided with an annular flange 35, and the annular flange 35 is fitted to the inner wall of the striker barrel 4 in a clearance fit manner.

As shown in FIGS. 4 and 7, an annular ledge 34 is provided at the front of the firing barrel 22, a spring B9 is provided on the firing pin sleeve 7, and spring B9 has one end abutting the annular ledge 35 of the firing pin sleeve 7 and the other end abutting the annular ledge 34.

In this embodiment, as shown in fig. 4 and 8, the firing assembly includes a guide rod 18 and a firing spring 15, the front portion of the firing spring 15 abuts against and is sleeved on the striker base 11, and the rear portion of the firing spring 15 abuts against and is sleeved on the guide rod 18.

In this embodiment, a detachable plug 19 is disposed at the rear end of the firing cylinder 22, and the guide bar 18 abuts against the plug 19. Specifically, as shown in fig. 4, the plug 19 is provided with a pin hole in a radial direction and an inner cavity for accommodating the guide rod 18 in an axial direction.

In this embodiment, the middle and the front of the guide rod 18 are cylinders, the tail is a non-standard cylinder, the arc surface of the non-standard cylinder is in clearance fit with the inner cavity wall of the plug 19, and the tail of the guide rod 18 is also radially provided with a pin hole. When the tail of the guide rod 18 is positioned in the inner cavity of the plug 19 and the pin shaft 21 simultaneously penetrates through the pin hole on the plug 19 and the pin hole on the guide rod 18, the pin shaft 21 is fixed by the retainer ring 20.

In this embodiment, as shown in fig. 4, the nail tube 2 is arranged at the front end of the needle striking cylinder 4, and the front part of the striker sleeve 7 can extend into the cavity of the nail tube 2 and slide along the axial direction of the nail tube 2.

In the embodiment, the outer wall of the nail tube 2 is provided with a dust cover 1 and a nail tube seat 3, and the nail tube 2 is connected with a collision needle cylinder 4 through the nail tube seat 3.

In order to facilitate the operation and prevent scalding, a rubber sleeve 5 is arranged outside the firing pin barrel 4.

In this embodiment, the connecting cylinder 16 is connected to the firing pin cylinder 4 in a threaded manner.

In this embodiment, the nail tube 2 and the striker sleeve 7 are connected by a screw thread, and the nail tube 2 and the striker barrel 4 are connected by a screw thread.

A disassembly and assembly process: disassembling the dust hood 1 → disassembling the striker barrel 4 → disassembling the plug 19 → disassembling the striker assembly (deep cleaning of residue can be realized after the step of pond) → disassembling the limit pin 10; the limiting pin 10 is arranged, the striker guide tube 7 and the firing cylinder 22 are fixed → the striker assembly is arranged → the firing assembly is arranged → the plug 19 is arranged → the striker cylinder 4 and the dust cover 1 are arranged. The firing pin assembly is disassembled and assembled as a unit during cleaning and post maintenance without the need for separate disassembly and assembly.

The working principle is as follows: the firing pin sleeve 7 moves to the tail of the shell after being pressed (the tail of the shell is a part near a plug 19 of a nail shooting tool), and drives the firing pin assembly to move to the tail of the shell, so that the firing spring 15 is compressed through the firing pin assembly to realize energy storage, and in the process, a firing stop key 13 on the firing pin assembly is always clamped at the rear end of the firing pin sleeve 7; after the hair stop key 13 on the firing pin assembly is contacted with the slope 23 in the firing cylinder 22, along with the continuous backward movement of the firing pin assembly, the head (top) of the hair stop key 13 can be under the pressure action of the slope 23, the hair stop key 13 can slide into the inner cavity of the firing pin sleeve 7 under the matching of the pressure spring 26, after the hair stop key 13 slides into the inner cavity of the firing pin sleeve 7, the firing spring 15 can be reset instantly and release the elastic force, the elastic force generated by the reset of the firing spring 15 is transmitted to the firing pin assembly, so that the firing pin assembly moves forward to strike the pins to achieve firing.

In the using process, the hanging point of the nail shooting tool cannot be hung or failed due to abrasion after being used for multiple times, the nail shooting tool skillfully adopts the rear end of the firing pin sleeve as an axial limiting part of the locking key, the hanging can be realized at any position in the circumferential direction of the rear end of the firing pin sleeve, and when one hanging point fails, the hanging can be continued to be stable only by properly rotating the firing pin sleeve or the firing assembly, so that the service life of the nail shooting tool is greatly prolonged, and the service life of the nail shooting tool is at least 10 times of that of the nail shooter disclosed by CN207858758U (the nail shooting tool in the document can only be hung at a pin hole); the nail shooting tool can realize radial and axial heat dissipation and slag discharge, has excellent heat dissipation performance, is convenient for cleaning internal residues, and does not need to completely disassemble the whole product into parts in the cleaning process; the nail shooting tool has the advantages that parts are not easy to scatter, spare parts such as multiple sets of hair-stopping keys and pressure springs are not needed, and the manufacturing cost of products can be saved.

The nail shooting tool is very convenient to disassemble, clean and assemble, time and labor are saved, the whole disassembling, cleaning and assembling process is less, the time consumption of skilled technicians is only about 30 seconds, even ordinary workers can complete the assembling within about one minute, and the phenomenon of clamping cannot occur in the assembling process; the nail shooting tool is light in weight, the weight of the nail shooting tool is only about 2/3 of the traditional nail shooting tool, and the nail shooting tool is more beneficial to high-altitude operation; the nail shooting tool adopts a specific structural arrangement, more accords with the use habit of workers, can completely avoid the phenomenon of hand clamping when the nail is shot to retreat, and thoroughly solves the problem of hand scalding caused by continuous use.

Claims

1. A nail shooting tool comprises a nail pipe (2), wherein a power adjusting channel (42) is arranged on the nail pipe (2), a power adjusting sleeve (40) is sleeved on the nail pipe (2), an inner concave part (41) is arranged on the inner wall of the power adjusting sleeve (40), and the power adjusting channel (42) can correspond to the inner concave part (41) on the inner wall of the power adjusting sleeve (40) by rotating the power adjusting sleeve (40); the method is characterized in that: each group of power adjusting channels (42) are arranged in the same height relative to the same end of the nail tube (2), and the pressure relief amount of different groups of power adjusting channels (42) in unit time is different.

2. The nailing tool of claim 1, wherein: different groups of power adjusting channels (42) adopt holes with different diameters to realize different pressure relief amounts in unit time.

3. The nailing tool of claim 1, wherein: different groups of power adjusting channels (42) adopt different numbers of holes to realize different pressure relief amount in unit time.

4. The nailing tool of claim 1, wherein: different groups of power adjusting channels (42) adopt holes with different diameters and different numbers to realize different pressure relief amounts in unit time.

5. The nailing tool of claim 1, 2, 3 or 4, wherein: the nail tube (2) is provided with a dust cover (1), and the power adjusting sleeve (40) is locked on the nail tube (2) by the dust cover (1).

6. The nailing tool of claim 5, wherein: the dust cover (1) is abutted against the power adjusting sleeve (40), and the power adjusting sleeve (40) is directly locked on the nail tube (2) through the dust cover (1).

7. The nailing tool of claim 6, wherein: the outer wall of the nail tube (2) is provided with a power grade mark.

8. The nailing tool of claim 7, wherein: the power level mark comprises an indicating line (43) which is arranged on the outer wall of the power adjusting sleeve (40) and corresponds to the inner concave part (41), and power level scales (44) which are arranged at the corresponding positions of the power adjusting channel (42), and after the power adjusting sleeve (40) is rotated to enable the indicating line (43) to be aligned with the power level scales (44), the power adjusting channel (42) at the level is aligned with the inner concave part (41).

9. The nailing tool of claim 8, wherein: the nail shooting tool comprises a shell, a firing pin assembly, a firing pin sleeve (7) and a firing assembly, wherein the firing pin assembly, the firing pin sleeve and the firing assembly are arranged in the shell, and a nail tube (2) is arranged at the front part of the shell; the shell comprises a firing cylinder (22), a connecting cylinder (16) movably arranged at the front part of the firing cylinder (22), and a needle striking cylinder (4) arranged at the front part of the connecting cylinder (16), wherein a power adjusting sleeve (40) is sleeved at the middle part of the nail tube (2) and is positioned between the needle striking cylinder (4) and the nail tube seat (3), and a spring A (17) is arranged on the outer wall of the firing cylinder (22); before firing, a hair stopping key (13) of the firing pin component is clamped at the rear end of the firing pin sleeve (7), and when the hair stopping key (13) of the firing pin component is contacted with a slope surface (23) arranged in a firing cylinder (22) and is pressed, the hair stopping key slides into the inner cavity of the firing pin sleeve (7) to achieve firing.

10. The nailing tool of claim 9, wherein: the firing pin component comprises a firing pin seat (11), the front part of the firing pin seat (11) is connected with a firing pin (24), and the rear part of the firing pin seat (11) is connected with a firing component; a stepped hole (25) is formed in the striker seat (11), a hair-stop key (13) and a pressure spring (26) are arranged in the stepped hole (25), the upper end of the pressure spring (26) is abutted against a convex edge A (27) at the head of the hair-stop key (13), the lower end of the pressure spring (26) is abutted against a step surface (28) of the stepped hole (25), and a convex edge B (29) at the tail of the hair-stop key (13) is clamped on the outer wall of the striker seat (11); a groove (30) is formed in the striker seat (11), and the tail of the hair-stopping key (13) is positioned in the groove (30); the outer wall of the striker seat (11) is partially in clearance fit with the inner wall of the striker sleeve (7); the striker base (11) is a non-standard cylinder with a lateral edge, and the arc surface (31) of the non-standard cylinder is in clearance fit with the inner wall of the striker sleeve (7); a pin hole (32) is formed in the firing cylinder (22), a strip-shaped hole (33) is axially formed in the firing pin sleeve (7), and the limiting pin (10) is simultaneously arranged in the pin hole (32) and the strip-shaped hole (33) in a matched manner; an annular convex edge (35) is arranged on the firing pin connecting sleeve (7), and the annular convex edge (35) is in clearance fit with the inner wall of the firing pin cylinder (4); an annular boss (34) is arranged at the front part of the firing cylinder (22), a spring B (9) is arranged on the firing pin sleeve (7), one end of the spring B (9) is abutted against an annular convex edge (35) of the firing pin sleeve (7), and the other end is abutted against the annular boss (34); the firing assembly comprises a guide rod (18) and a firing spring (15), the front portion of the firing spring (15) abuts against and is sleeved on the striker base (11), and the rear portion of the firing spring (15) abuts against and is sleeved on the guide rod (18).