WO2021087958A1

WO2021087958A1 - Nail tube, deslagging and heat dissipation sleeve and silencing, deslagging and heat dissipation structure of nail gun

Info

Publication number: WO2021087958A1
Application number: PCT/CN2019/116620
Authority: WO
Inventors: 罗永松; 何峰; 胡正伟
Original assignee: 四川省鑫固科技发展有限公司
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2021-05-14

Abstract

Provided is a nail tube of a nail gun, the nail tube comprising a silencing hole (12), a silencing piece (23) arranged on an outer wall of a nail tube (1), and a flow guide channel communicating the silencing hole with external air by means of the silencing piece. Provided is a deslagging and heat dissipation sleeve of a nail gun, the deslagging and heat dissipation sleeve comprising a silencing piece arranged on an outer wall of a deslagging and heat dissipation sleeve (2), and a flow guide channel communicating a silencing hole in a nail tube with external air by means of the silencing piece. Provided is a silencing, deslagging and heat dissipation structure of a nail gun, the silencing, deslagging and heat dissipation structure comprising a nail tube, a silencing cover (3), a silencing cavity, a silencing piece and a flow guide channel, wherein the silencing cavity is formed between the nail tube and the silencing cover, the silencing piece is arranged in the silencing cavity, and the flow guide channel communicates a silencing hole in the nail tube with external air by means of the silencing piece. The nail gun, which uses the above-mentioned structure, can effectively solve the problem of poor silencing, deslagging and heat dissipation effects in existing nail guns.

Description

Nail tube, slag-removing heat dissipation sleeve and noise-removing slag-removing heat dissipation structure of nail shooter

Technical field

The invention relates to the field of nail shooters, in particular to a nail tube of a nail shooter, a slag-removing heat dissipation sleeve and a noise-removing slag-removing heat dissipation structure.

Background technique

When the nail shooter is used, the integrated nail projectile explodes in the nail tube, and the gas generated by the explosion pushes the nail into the substrate to complete the nail shooting process, but the explosion will also generate a huge noise, which will cause a sound wave impact on the site construction personnel. In order to overcome the noise generated by the explosion, the nail tube is usually processed with silencing holes, and the silencing cover is placed on the nail tube jacket. A closed silencing cavity is formed between the nail tube and the silencing cover. The noise enters the silencing chamber through the silencing hole and is weakened. Play a noise reduction effect. But at the same time, the debris from the nail bullet explosion will also enter the silencing chamber from the silencing hole. The residue will accumulate in the silencing chamber and will agglomerate over time. The volume of the silencing chamber is small, so it is necessary to remove the silencing cover regularly. Cleaning up the residue is very inconvenient to use and will affect work efficiency. In addition, a large amount of heat will be generated when the nail bullet explodes. Part of the heat will also enter the muffler cavity through the muffler hole, and the heat cannot be effectively dissipated. Therefore, as the number of shots increases, the temperature of the muffler will gradually increase, resulting in It is inconvenient to carry out the shelling action, and it will also bring serious safety hazards to the construction personnel.

Based on the above problems, technicians have developed a nail shooter that can realize slag discharge and heat dissipation. The slag discharge heat dissipation method in the prior art is to block the slag discharge heat dissipation hole during firing to realize the firing tightness, and open the slag discharge heat dissipation hole when resetting. Realize slag removal and heat dissipation. The disadvantage of this method is that the integrated nail projectile has the highest temperature and the strongest air flow when it is in the explosive state, and the closed state at the time of firing makes most of the heat absorbed by the nail shooter, and the impact force makes the fine dust residue pass through the nail shooter components. The gap between them enters the inside of the nail shooter. After the slag discharge heat dissipation hole is opened when resetting, the large particles can only be discharged by shaking the nail shooter. The above slag discharge and heat dissipation method not only has a slow heat dissipation and cooling effect, but the fine dust inside the nail shooter cannot be effectively discharged and is exposed to a high temperature and high pressure environment for a long time, which may easily cause the gun to jam and cause a safety accident.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is at least to provide a nail tube, a slag-removing heat dissipation sleeve, and a noise-removing and slag-removing heat dissipation structure of a nail shooter to solve the noise-removing and slag-removing heat dissipation effect of the nail shooter Bad question.

To achieve the above and other related purposes:

The first aspect of the present invention provides a nail tube of a nail ejector. The nail tube includes at least one muffler hole, and further includes a muffler sheet and a diversion channel. The muffler sheet is arranged on the outer wall of the nail tube. The passage communicates with the sound-absorbing hole and the outside air through the sound-absorbing sheet.

The second aspect of the present invention provides a slag discharge heat dissipation jacket of a nail ejector, comprising a sound-absorbing fin and a diversion channel, the sound-absorbing fin is arranged on the outer wall of the slag discharge heat dissipation sleeve, and the diversion channel passes through the sound-absorbing The sheet connects the muffler hole on the nail tube and the outside air.

A third aspect of the present invention provides a noise-removing and slag-removing heat dissipation structure for a nail ejector, which includes a nail tube, a sound-absorbing cover, a sound-absorbing cavity, a sound-absorbing sheet, and a diversion channel. The sound-absorbing cavity is formed between the nail tube and the Between the silencer covers, the silencer is arranged in the silencer cavity, and the diversion channel communicates with the silencer hole on the nail tube and the outside air through the silencer.

Optionally, the nail tube is the nail tube in the foregoing first embodiment, and the sound-absorbing sheet and the diversion channel are the sound-absorbing sheet and the diversion channel on the nail tube.

Optionally, the sound-absorbing and slag-removing heat dissipation structure further includes the slag-removing heat dissipation jacket in the foregoing second embodiment, the slag-removing heat dissipation jacket is sleeved on the nail tube, and the sound-absorbing fins and the diversion channel are the The silencer and the diversion channel on the slag discharging heat sink.

The invention provides a nail tube, a slag discharging heat dissipation sleeve, and a sound-absorbing and slag discharging heat dissipation structure of a nail shooter. The outer surface of the nail tube or the slag discharging heat dissipation sleeve is provided on the premise of not changing the working mode and effect of the original equipment. The silencer pieces are arranged to form a connected diversion channel, and the diversion channel connects the silencer hole and the outside air through each silencer piece. The beneficial effects are as follows:

1. The silencer sheet can effectively absorb the sound wave vibration generated during the explosion, and reduce the explosion sound of the nail shooter during the explosion.

2. Because the internal space of the nail tube is always in communication with the outside world, heat can be dissipated in time through the diversion channel, which can effectively reduce the temperature of the internal parts of the nail ejector and avoid the safety hazards caused by high temperature.

3. Residues can be discharged out of the nail shooter through the diversion channel at any time, and there is no need to frequently disassemble the nail shooter to clean up the residue, which simplifies the use process of the nail shooter and improves work efficiency.

4. Even fine dust can be smoothly discharged from the nail shooter, avoiding the occurrence of gun jams caused by the agglomeration of small residues inside the nail shooter, improving the safety factor of the nail shooter and extending the shooting The service life of nails.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.

FIG. 1 is a cross-sectional view of the split type sound-absorbing and slag-removing heat dissipation structure in the first embodiment of the present invention;

Figure 2 is a cross-sectional view of the nail tube in the first embodiment of the present invention;

Fig. 3 is a schematic diagram of the structure of the slag discharging heat sink in the first embodiment of the present invention;

Figure 4 is a rear view of the slag removal heat dissipation jacket in Figure 3;

Figure 5 is a cross-sectional view of the split spiral silencing and slagging and heat dissipation structure in the second embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a slag discharging heat dissipation jacket in the second embodiment of the present invention;

Fig. 7 is a rear view of the slag discharging heat dissipation jacket of Fig. 6;

8 is a cross-sectional view of the integrated sound-absorbing and slag-removing heat dissipation structure in the third embodiment of the present invention;

9 is a schematic diagram of the structure of the nail tube in the third embodiment of the present invention;

Figure 10 is a rear view of the nail tube in Figure 9;

11 is a cross-sectional view of the integrated spiral sound-absorbing and slag-removing heat dissipation structure in the fourth embodiment of the present invention;

Figure 12 is a schematic view of the structure of the nail tube in the fourth embodiment of the present invention;

Figure 13 is a rear view of the nail tube in Figure 12;

14 is a cross-sectional view of the power-adjustable silencing and slag-removing heat dissipation structure (high power state) in the fifth embodiment of the present invention;

15 is a cross-sectional view of the power-adjustable silencer and slag-removing heat dissipation structure (medium power state) in the fifth embodiment of the present invention;

16 is a cross-sectional view of the power-adjustable silencing and slag-removing heat dissipation structure (low power state) in the fifth embodiment of the present invention;

FIG. 17 is a cross-sectional view of another structure of the split-type noise-removing and slag-removing heat dissipation structure in the first embodiment of the present invention;

Fig. 18 is a schematic diagram of a mating manner of a nail shooter using the split type noise-removing and slag-removing heat dissipation structure in the first embodiment of the present invention.

In the figure:

1 Nail tube

11 Muffler hole

12 Muffler hole

13 Limit plate one

14 Thread part

15 Limit plate three

2 Slag discharge heat sink

21 Small path section

22 Large diameter section

23 Silencer

24 Diversion groove

25 Through hole

26 Gap

27 Card position ring one

28 Opening one

29 Opening Two

3 Muffler cover

31 Slag discharge and heat dissipation holes

32 Limit plate two

33 Gap

4 Threaded connection

5 Striking needle sleeve

6 Return spring

7 Outerwear

71 Card position ring two

8 Pressure relief hole

9 Exhaust hole

Detailed ways

The following specific examples illustrate the implementation of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

It should be noted that the structure, ratio, size, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the implementation of the present invention. Conditions, so it has no technical significance. Any structural modification, proportional relationship change, or size adjustment should still fall within the scope of the present invention without affecting the effects and objectives that can be achieved by the present invention. Within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for ease of description, not to limit the text. The scope of implementation of the invention, the change or adjustment of its relative relationship, without substantial changes to the technical content, shall also be regarded as the scope of implementation of the invention.

The technical solution provided by the present invention relates to the nail tube 1, the slag-removing heat dissipation sleeve 2 and the noise-removing slag-removing heat dissipation structure of the nail shooter. The sound-absorbing and slag-removing heat dissipation structure is provided with a sound-absorbing sheet 23 in the sound-absorbing cavity between the nail tube 1 and the sound-absorbing cover 3, and a diversion channel connecting the sound-absorbing hole 12 on the nail tube 1 and the outside air through the sound-absorbing sheet 23. The silencer sheet 23 can be formed on the outer wall of the nail tube 1 or on the outer wall of the slag discharge and heat dissipation sleeve 2 sheathed on the nail tube 1.

In one embodiment, there is provided a split sound-absorbing and slag-removing heat dissipation structure, comprising a nail tube and a sound-absorbing cover, the emission direction of the nail tube is forward; the inner wall of the sound-absorbing cover and the outer wall of the nail tube form a sound-absorbing cavity; The nail tube includes a silencing hole portion, the silencing hole portion is provided with at least one silencing hole, and the silencing hole communicates with the inner space of the nail tube and the silencing cavity; further includes a slag discharge heat dissipation sleeve; the slag discharge heat dissipation The sleeve is sleeved between the nail tube and the muffler cover; the nail tube and the slag discharging heat dissipation sleeve are in clearance fit to prevent the heat and residue rushed out of the muffler hole from dissipating from the nail tube and the slag discharging The sleeves enter the inside of the nail shooter; the slag discharge heat dissipation sleeve is provided with a number of sound-absorbing fins arranged in an axial direction, and the sound-absorbing fins extend from the outer wall of the slag discharge heat dissipating sleeve to the inner wall of the sound-absorbing cover. The inner wall of the cover and the muffler piece cooperate with each other to divide the muffler cavity into a number of independent guide grooves; the muffler piece is provided with notches and/or through holes; the muffler hole communicates with the inner space of the nail tube And the diversion groove; the diversion groove communicates with the outside air through the slag discharge radiating hole provided on the muffler cover, and/or the diversion groove is connected to the slag discharge radiating sleeve through the end of the muffler cover The gap between them communicates with outside air.

Optionally, the end of the slag discharge heat dissipation sleeve corresponding to the muffler hole portion is provided with a communication portion, an annular channel communicating with the muffler hole is formed on the inner side of the communication portion, and the slag discharge heat dissipation sleeve is provided with At least one through hole communicates with the annular channel and the diversion groove.

Optionally, a limit disc 1 extending radially outward is provided on the front side of the muffler hole portion, and the front end surface of the communicating portion abuts against the rear end surface of the limit disc 1; the sound-absorbing cover The front end is provided with a second limiting disk extending radially inward, and the rear end surface of the second limiting disk abuts on the front end surface of the first limiting disk; the outer diameter of the first limiting disk is not greater than the outer diameter of the first limiting disk. The outer diameter of the muffler sheet; the muffler cover is fixedly connected with the slag removal heat dissipation sleeve.

Optionally, the positions of the notches and/or through holes on the adjacent sound-absorbing sheets are arranged with angular deviations in the circumferential direction.

Optionally, each of the sound-absorbing pieces is provided with a notch or through hole, and the positions of the notches or through holes on the adjacent sound-absorbing pieces are arranged with a deviation of 180° in the circumferential direction.

Optionally, the muffler cover is threadedly connected with the slag discharge and heat dissipation sleeve.

Optionally, the muffler hole communicates with the guide groove at the front end, and the slag discharge heat dissipation hole or the gap is located at the rear end of the muffler cover; or, the muffler hole is connected to the guide groove at the rearmost end. The launders are communicated, and the slag discharge and heat dissipation hole or the gap is located at the front end of the muffler cover.

Correspondingly, there is provided a slag-removing heat dissipation sleeve for sleeved between the nail tube and the muffler cover, and the slag-removing heat dissipation sleeve can be clearance fit with the nail tube to prevent rushing out of the muffler hole. Heat and residues enter the nail shooter from between the nail tube and the slag-removing heat dissipation sleeve; the slag-removing heat dissipation sleeve is provided with a number of sound-absorbing fins arranged in an axial direction, and the sound-absorbing fins are discharged from the slag discharge The outer wall of the heat dissipation sleeve extends in the direction of the inner wall of the muffler cover, and the muffler sheet can cooperate with the inner wall of the muffler cover to divide the muffler cavity into a plurality of independent guide grooves; the muffler sheet is provided with notches and/ Or through holes.

Optionally, the end of the slag discharge heat sink corresponding to the muffler hole portion is provided with a communicating portion, an annular channel that can communicate with the muffler hole is formed on the inner side of the communicating portion, and the slag discharging heat sink is provided with There is at least one through hole, and the through hole communicates with the annular channel and the diversion groove. Take Example 1 as an example for further explanation.

Example one:

Figure 1 shows a cross-sectional view of the split type noise-removing and slag-removing heat dissipation structure in the first embodiment of the present invention, which includes a nail tube 1, a slag-removing heat dissipation sleeve 2 and a sound-absorbing cover 3. The rear end of the nail tube 1 is sleeved, the nailed tube 1 is upper limit along the forward direction of the axis, the muffler cover 3 is sleeved from the front end of the nail tube 1, at the same time the nailed tube 1 and the slag discharging heat sink 2 are upper limit in the backward direction along the axis , And screw-fixed with the slag discharging radiating sleeve 2, a muffler cavity is formed between the inner wall of the silencing cover 3 and the slag discharging radiating sleeve 2.

Figure 2 is a cross-sectional view of the nail tube 1 in this embodiment. The nail tube 1 includes a silencer hole 11 and a limit disk 13 located in front of the silencer hole 11. The silencer hole 11 is provided with at least one silencer hole 12. 12 penetrates the side wall of the nail tube 1. The silencer hole portion 11 in this embodiment is provided with two silencer holes 12 evenly distributed around the circumference of the silencer hole portion 11. The number and position of the silencer holes 12 will affect the effect of silencer and slagging and heat dissipation. Therefore, the arrangement of the silencer holes 12 can be designed according to needs in the industrial manufacturing process. The function of the muffler hole 12 is to discharge noise, heat and residue, and the position of the needle sleeve in the nail tube 1 will not block the muffler hole 12 when the nail shooter is in any state.

As shown in Figure 1, the slag discharging heat sink 2 includes a small-diameter section 21 at the front and a large-diameter section 22 at the rear. During installation, the small-diameter section 21 is sleeved from the rear end of the nail tube 1, and the front-end surface of the small-diameter section 21 abuts against the limit. On the rear end surface of the position plate 13, the slag discharging heat dissipation sleeve 2 is limited by the limit plate 13 in the forward direction along the axis. The inner wall of the small diameter section 21 is in clearance fit with the nail tube 1 to prevent air from flowing in the gap between the inner wall of the small diameter section 21 and the outer wall of the nail tube 1. The outer wall of the small diameter section 21 is provided with five parallel muffler sheets 23 arranged in the axial direction. The muffler sheet 23 extends from the outer wall of the small diameter section 2 to the inner wall of the muffler cover 3. The function of the muffler sheet 23 is to absorb sound waves. After absorption, the sound produced by the explosion can be attenuated. The muffler sheet 23 divides the muffler cavity into six guide grooves 24, and the guide grooves 24 are independent of each other. As shown in Figures 3 and 4, each silencer sheet 23 is provided with a notch 26. The notch 26 enables the communication between the diversion grooves 24, and the heat and residue can circulate from the diversion groove 24 at the front end to the diversion groove 24 at the rear end. The groove 24, and the gaps 26 on the two adjacent sound-absorbing sheets 23 are arranged in a staggered manner. This way can make the diversion channel formed by the diversion groove 24 longer, and the sound waves can be better controlled in the sound-absorbing cover 3 , And can also ensure that the required firing power will not be reduced when firing. The communicating guide groove 24 keeps the outside air and the muffler hole 12 always in communication, and provides a passage for the discharge of heat and residue. In order to make the muffler hole 12 communicate with the guide groove 24, the end of the slag discharging heat dissipation jacket 2 and the muffler hole portion 11 in the present embodiment is provided with a communicating portion, and an annular channel communicating with the muffler hole is formed inside the communicating portion. The annular channel is connected to the above-mentioned annular channel and the diversion groove 24 through at least one through hole 25 opened on the slag discharging heat dissipation sleeve 2, so that the muffler hole 12 can communicate with the diversion groove 24, and sound waves, heat and residue can be silenced. The hole 12 drains into the diversion groove 24.

As shown in Fig. 1, in this embodiment, the muffler cover 3 is inserted from the front end of the nail tube 1, and the inner diameter of the muffler cover 3 is the same or substantially the same as the maximum outer diameter of the muffler sheet 32, so that, on the whole, the heat and residue can only be Or basically it can only flow from the front end to the back end of the nail tube 1 through the diversion groove 24 and the notch 26. The front end of the muffler cover 3 has a limit disk two 32. The rear end surface of the limit disk two 32 abuts on the front end surface of the limit disk 13 of the nail tube 1, and the outer diameter of the limit disk 13 is larger than that of the limit disk two 32. The inner diameter is not greater than the maximum outer diameter of the muffler sheet 23. The rear end of the muffler cover 3 is threaded 4 with the rear end of the small diameter section 21, and the rear end surface of the muffler cover 3 abuts against the front end surface of the large diameter section 22. The above-mentioned matching manner of the sound-absorbing cover 3 makes the nail tube 1 be restricted in the axial forward direction relative to the slag discharge heat dissipation sleeve 2. The silencer cover 3 is provided with a slag discharge heat dissipation hole 31 corresponding to the last column of the diversion groove 24. The slag discharge heat dissipation hole 31 communicates with the outside air and the diversion groove 24 so that heat and residue can be discharged from the diversion groove 24. According to the above description, the muffler cover 3, the nail tube 1 and the slag removal heat dissipation sleeve 2 have a relatively fixed positional relationship in the axial direction, and the heat and residue flushed from the muffler hole 12 can only or basically The outside can only be discharged along the diversion channel formed by the diversion groove 24 and the notch 26.

In one embodiment, there is provided a split spiral sound-absorbing and slag-discharging heat dissipation structure, comprising a nail tube and a sound-absorbing cover, the emission direction of the nail tube is forward; a sound-absorbing cavity is formed between the inner wall of the sound-absorbing cover and the outer wall of the nail tube The nail tube includes a silencing hole portion, the silencing hole portion is provided with at least one silencing hole, and the silencing hole communicates with the inner space of the nail tube and the silencing cavity; also includes a slag discharge heat sink; the row The slag heat dissipation sleeve is sleeved between the nail tube and the muffler cover; the nail tube is in clearance fit with the slag discharging heat dissipation sleeve to prevent the heat and residue from rushing out of the muffler hole from the nail tube and the drain The slag radiating sleeve enters the inside of the nail shooter; a spiral silencer is arranged along the axial direction of the slag radiating sleeve, and the silencing fin extends from the outer wall of the slag radiating sleeve to the inner wall of the silencer, so The inner wall of the muffler cover and the muffler piece cooperate with each other to form a spiral guide groove that is at least partially closed in the circumferential direction. The guide groove includes an opening at the front end and an opening at the rear end; the sound attenuation hole communicates with the nail The inner space of the pipe is connected to the diversion groove; the diversion groove communicates with the outside air through the slag discharge and heat dissipation holes provided on the muffler cover, and/or the diversion groove communicates with the outside air through the end of the muffler cover The gap between the slag discharging radiating sleeves communicates with outside air.

Optionally, the end portion of the slag discharge heat dissipation sleeve corresponding to the muffler hole portion is provided with a communication portion, an annular channel communicating with the muffler hole is formed on the inner side of the communication portion, and at least one slag discharge heat dissipation sleeve is provided with The through hole communicates with the annular channel and the diversion groove.

Optionally, a limit disc 1 extending radially outward is provided on the front side of the muffler hole portion, and the front end surface of the communicating portion abuts against the rear end surface of the limit disc 1; the sound-absorbing cover The front end is provided with a second limiting disk extending radially inward, and the rear end surface of the second limiting disk abuts on the front end surface of the first limiting disk; the outer diameter of the first limiting disk is not greater than the outer diameter of the first limiting disk. The maximum outer diameter of the muffler sheet; the muffler cover is fixedly connected with the slag discharge heat dissipation sleeve.

Optionally, the sound-absorbing sheet is provided with notches and/or through holes that communicate with at least two adjacent spirals of the guide groove in the axial direction.

Optionally, the positions of the notches and/or through holes on the adjacent spirals of the sound-absorbing sheet are arranged with angular deviations in the circumferential direction.

Optionally, the notches or through holes on adjacent spirals of the sound-absorbing sheet are all one, and a deviation of 180° is provided in the circumferential direction.

Optionally, the muffler hole is located in front of the opening one, and the slag discharge heat dissipation hole or the gap is located behind the opening two; or, the muffler hole is located behind the opening two, and the The slag discharge heat dissipation hole or the gap is located in front of the opening one.

Correspondingly, there is provided a slag-removing heat dissipation sleeve for sleeved between the nail tube and the muffler cover, and the slag-removing heat dissipation sleeve can be clearance fit with the nail tube to prevent rushing out of the muffler hole. Heat and residue enter the nail shooter from between the nail tube and the slag discharging heat dissipation sleeve; the slag discharging heat dissipating sleeve is provided with a spiral muffler along the axial direction, and the muffler is removed from the slag discharging The outer wall of the heat dissipation sleeve extends in the direction of the inner wall of the muffler cover, and the muffler sheet can cooperate with the inner wall of the muffler cover to form a spiral guide groove that is at least partially closed in the circumferential direction.

Optionally, the end of the slag discharge heat dissipation sleeve corresponding to the muffler hole portion is provided with a communicating portion, an annular channel capable of communicating with the muffler hole is formed on the inner side of the communicating portion, and at least A through hole, the through hole communicates with the annular channel and the diversion groove. Take the second embodiment as an example for further description.

Embodiment two:

5 shows a cross-sectional view of the split spiral slag discharging heat dissipation structure in the second embodiment of the present invention, including a nail tube 1, a slag discharging heat dissipation sleeve 2 and a muffler cover 3, the structure of the nail tube 1 and the slag discharging heat dissipation sleeve 2 and the sound attenuation The cooperating installation method between the covers 3 is the same as that of the above-mentioned embodiment, so it will not be described in detail.

As shown in FIG. 5, as in the first embodiment, the slag discharge heat dissipation jacket 2 includes a small-diameter section 21 at the front end and a large-diameter section 22 at the rear end. The inner wall of the small-diameter section 21 is in clearance fit with the nail tube 1. The outer wall of the small-diameter section 21 is provided with a spiral muffler 23 arranged along the axial direction. The muffler 23 extends from the outer wall of the small-diameter section 2 to the inner wall of the muffler cover 3. The function of the muffler 23 is to absorb sound waves, and is multi-layered in the axial direction. After being absorbed by the sheet 23, the sound generated by the explosion can be attenuated. The spiral silencer 23 cooperates with the inner wall of the silencer 3 to form a spiral guide groove 24 that is closed at least partially in the circumferential direction. As shown in FIG. 7, the diversion groove 24 includes a first opening 28 at the front end and a second opening 29 at the rear end. Heat and residue can circulate from the first opening 28 to the second opening 29. As shown in FIG. 6, the sound-absorbing sheet 23 can also be provided with a gap 26. The gap 26 can be used to communicate the two adjacent spirals of the diversion groove 24 in the axial direction to provide more diversion channels for heat and residue. When multiple notches 26 are provided on the muffler sheet 23, the notches 26 on the adjacent spirals are arranged in a staggered arrangement, which can increase the diversion channel while making the sound waves be better controlled in the muffler cover 3, and can also ensure When firing, the required firing power is not reduced. The guide groove 24 keeps the outside air and the muffler hole 12 always in communication, and provides a channel for the discharge of heat and residue. The same as in the first embodiment, the end of the slag discharging heat dissipation jacket 2 and the muffler hole 11 in this embodiment is provided with a connecting portion, and an annular channel communicating with the muffler hole is formed on the inner side of the connecting portion, and a through hole 25 on the annular channel is connected The above-mentioned annular channel and guide groove 24 enable the silencer hole 12 to communicate with the guide groove 24, and sound waves, heat and residues can be discharged from the silencer hole 12 into the guide groove 24.

As shown in FIG. 5, the fixing and limiting manners of the muffler cover 3, the nail tube 1 and the slag removal heat sink 2 in this embodiment are the same as those in the first embodiment, and no redundant statement is made here. The slag discharge and heat dissipation holes 31 provided in the muffler cover 3 are located behind the opening two 29, and the slag discharge heat dissipation holes 31 communicate with the outside air and the diversion groove 24, so that heat and residue can be discharged from the diversion groove 24.

In one embodiment, an integrated noise-removing and slag-removing heat dissipation structure is provided, comprising a nail tube and a noise-absorbing cover sleeved outside the nail tube, the emission direction of the nail tube is forward; A muffler cavity is formed between the outer walls of the nail tube; the nail tube includes a muffler hole portion provided with at least one muffler hole, and the muffler hole communicates with the inner space of the nail tube and the muffler cavity; A number of muffler sheets are arranged along the axial direction of the nail tube, the muffler sheet extends from the outer wall of the nail tube to the inner wall of the muffler cover, and the inner wall of the muffler cover and the muffler sheet cooperate with each other to divide the muffler cavity into a number of independent guides. Flow groove; the sound-absorbing sheet is provided with notches and/or through holes; the guide groove communicates with the outside air through the slag discharge and heat dissipation holes provided on the sound-absorbing cover, and/or the guide groove passes through the sound-absorbing cover The gap between the end and the nail tube communicates with outside air.

Optionally, the muffler cover is sleeved from the front or rear end of the nail tube, and is fixedly connected to the nail tube.

Optionally, the front end of the muffler cover is threadedly connected with the nail pipe.

Optionally, the nail tube is provided with a limiting disk 1 extending radially outward, the limiting disk 1 is located in front of the foremost diversion groove; the front end of the muffler cover is provided with a radial direction Inwardly extending limit disc two, the outer diameter of the limit disc one is larger than the inner diameter of the limit disc two; the rear end surface of the limit disc two abuts on the front end surface of the limit disc one; An external thread is provided on the outer wall of the front end of the nail tube, and an internal thread that matches the external thread is provided on the second limiting disk; the nail tube and the muffler cover pass through the external thread and the internal thread. Threaded connection.

Optionally, the rear end of the muffler cover is threadedly connected with the nail pipe.

Optionally, the nail tube is provided with a limiting disk three extending radially outwards, the limiting disk three is located behind the rearmost diversion groove; a locking position is provided on the inner wall of the rear end of the noise reduction cover , The rear end surface of the clamping position abuts against the front end surface of the limit disk three; an outer thread is provided on the outer wall of the rear end of the nail tube, and the inner wall of the rear end of the muffler is provided with the outer thread Matching internal threads; the nail tube and the muffler cover are threadedly connected by the external threads and the internal threads.

Optionally, each of the sound-absorbing pieces is provided with a notch or a through hole, and the positions of the notches or through holes on the adjacent sound-absorbing pieces are arranged with a deviation of 180° in the circumferential direction.

Correspondingly, a nail tube is provided. A number of sound-absorbing sheets are arranged along the axial direction of the nail tube. The sound-absorbing sheets extend from the outer wall of the nail tube to the inner wall of the sound-absorbing cover. The sound-absorbing sheets can be matched with the inner wall of the sound-absorbing cover. The muffler cavity is divided into a plurality of independent guide grooves; the muffler sheet is provided with notches and/or through holes. Take the third embodiment as an example for further explanation.

Example three:

Fig. 8 shows a cross-sectional view of the integrated noise-removing and slag-removing heat dissipation structure in the third embodiment of the present invention, which includes a nail tube 1 and a sound-absorbing cover 3. The nail tube 1 emits in the forward direction, and the sound-absorbing cover 3 is sleeved from the front end of the nail tube 1, and The nail tube 1 is threadedly connected, and a muffler cavity is formed between the nail tube 1 and the muffler cover 3. The nail tube 1 is provided with a sound-absorbing sheet 23, so the “integrated type” in the “integrated sound-absorbing and slagging and heat dissipation structure” refers to the nail tube 1 and the sound-absorbing sheet 23 as an integrated structure.

As shown in Figures 8-10, the nail tube 1 in this embodiment is provided with three muffler holes 12 evenly distributed around the circumference of the nail tube 1 and perpendicular to the axial direction. The muffler holes 12 always communicate with the muffler cavity and the inner space of the nail tube 1 . The outer wall of the nail tube 1 is provided with eight muffler sheets 23 arranged in parallel along the axial direction of the nail tube 1. The muffler sheet 23 extends from the outer wall of the nail tube 1 to the inner wall of the muffler cover 3, and the inner wall of the muffler cover 3 and the muffler sheet 23 cooperate with each other , The muffler cavity is divided into nine mutually independent diversion grooves 24 by the muffler sheet 23, and the muffler hole 12 communicates with the foremost diversion groove 24. Each silencer sheet 23 is provided with a notch 26, and the notch 26 connects the diversion grooves 24, so that heat and residue can circulate from the diversion groove 24 at the front end to the diversion groove 24 at the rear end. As in the first embodiment, the notches 26 on the two adjacent sound-absorbing pieces 23 are arranged in a staggered manner.

In this embodiment, the muffler cover 3 is inserted from the front end of the nail tube 1, and the inner diameter of the muffler cover 3 is the same or substantially the same as the maximum outer diameter of the muffler sheet 23, so that, on the whole, heat and residue can only or basically only pass The diversion groove 24 and the notch 26 flow from the front end of the nail tube 1 to the rear end. The front end of the muffler cover 3 is provided with a limiting disk 32 extending inwardly. The nail tube 1 is provided with a limiting disk 13 in front of the muffler hole 11, and a threaded portion 14 is provided on the front of the limiting disk 13. The external thread and the internal thread on the inner wall of the second limiting disk 32 cooperate with each other to form a threaded connection 4. The rear end surface of the limit disk two 32 abuts on the front end surface of the limit disk 13 to realize the limit of the muffler cover 3 in the backward direction along the axis. The outer diameter of the limit disk 13 is larger than that of the limit disk two 32. The inner diameter is not greater than the maximum outer diameter of the silencer 23. There is also a limit disk 15 behind the last row of diversion grooves 24 on the nail tube 1. The outer diameter of the limit disk 15 is larger than the maximum outer diameter of the silencer 23, and the silencer cover 3 is provided with a limit disk 15 phase. With the matching retaining ring, the limit disk 15 can also limit the muffler cover 3 in the backward direction along the axis. Therefore, the muffler cover 3 has a relatively fixed positional relationship with the nail tube 1 in the axial direction. A slag discharging heat dissipation hole 31 is provided in the sound-absorbing cover 3 corresponding to the last column of the diversion groove 24. The slag discharging heat dissipation hole 31 can discharge heat and residue from the diversion groove 24.

In one embodiment, there is provided an integrated spiral sound-absorbing and slag-discharging heat dissipation structure, comprising a nail tube and a sound-absorbing cover sleeved outside the nail tube, the emission direction of the nail tube is forward; the inner wall of the sound-absorbing cover and A silencer cavity is formed between the outer walls of the nail tube; the nail tube includes a silencer hole portion provided with at least one silencer hole, and the silencer hole communicates with the inner space of the nail pipe and the silencer cavity A spiral silencer is provided along the axial direction of the nail tube, the silencer extends from the outer wall of the nail tube to the inner wall of the silencer, and the inner wall of the silencer and the silencer cooperate with each other to form at least partially closed circumferential Spiral diversion groove, the diversion groove includes an opening one at the front end and an opening two at the rear end; the diversion groove communicates with the outside air through the slag discharge and heat dissipation holes provided on the muffler cover, and/or the diversion groove The groove communicates with the outside air through the gap between the end of the muffler cover and the nail tube.

Optionally, the nail tube is provided with a limiting disk 1 extending radially outward, the limiting disk 1 is located in front of the opening 1 and the muffler hole; the front end of the muffler cover is provided with a radial Inwardly extending limit disc two, the outer diameter of the limit disc one is greater than the inner diameter of the limit disc two; the rear end surface of the limit disc two abuts on the front end surface of the limit disc one An external thread is provided on the outer wall of the front end of the nail tube, and an internal thread that matches the external thread is provided on the limiting disk two; the nail tube and the muffler cover pass through the external thread and the Internal thread connection.

Optionally, the nail tube is provided with a limiting disk three extending radially outward, the limiting disk three is located behind the muffler hole and the opening two; on the inner wall of the rear end of the muffler cover It is provided with a card position, the rear end surface of the card position abuts against the front end surface of the limit plate three; an external thread is provided on the outer wall of the rear end of the nail tube, and the inner wall of the rear end of the sound-absorbing cover is provided with The internal thread that matches the external thread; the nail tube and the muffler cover are threadedly connected by the external thread and the internal thread.

Optionally, the muffler hole is located in front of or below the first opening, and the slag discharge heat dissipation hole or the gap is located behind or above the second opening; or, the muffler hole is located behind or below the second opening , The slag discharge and heat dissipation hole or the gap is located in front of or above the opening.

Correspondingly, there is provided a nail tube, which is provided with a spiral sound-absorbing sheet along the axial direction of the nail tube, the sound-absorbing sheet extends from the outer wall of the nail tube to the inner wall of the sound-absorbing cover, and the sound-absorbing sheet can cooperate with the inner wall of the sound-absorbing cover, A spiral guide groove which is closed at least partially in the circumferential direction is formed. Take the fourth embodiment as an example for further description.

Embodiment four:

Fig. 11 shows a cross-sectional view of the integrated spiral sound-absorbing and slag-removing heat dissipation structure in the fourth embodiment of the present invention, which includes a nail tube 1 and a muffler cover 3. In this embodiment, the nail tube 1 is provided with a silencer hole 12 and the nail tube 1 and The cooperating installation method of the muffler cover 3 is the same as in the third embodiment, and no redundant statement is made here.

As shown in Figures 11 to 13, the outer wall of the nail tube 1 is provided with a spiral sound-absorbing sheet 23 extending in the axial direction of the nail tube 1. The sound-absorbing sheet 23 extends from the outer wall of the nail tube 1 to the inner wall of the sound-absorbing cover 3, and the inner wall of the sound-absorbing cover 3 is connected with The silencer pieces 23 cooperate with each other to form a spiral guide groove 24 that is at least partially closed in the circumferential direction. The guide groove 24 includes a first opening 28 at the front end and a second opening 29 at the rear end. The silencer sheet 23 may also be provided with a notch 26, which may be used to communicate the two adjacent spirals of the guide groove 24 in the axial direction to provide more guide channels for heat and residue. When multiple notches 26 are provided on the muffler sheet 23, the notches 26 on adjacent spirals are arranged in a staggered manner. The guide groove 24 keeps the outside air and the muffler hole 12 always in communication. The relative fixation of the nail tube 1 and the muffler cover 3 along the axis in this embodiment is the same as that in the third embodiment. The muffler cover 3 is provided with a slag discharge and heat dissipation hole 31 behind the opening 29, so that heat and residues can be discharged from the diversion groove 24.

When the nail shooter equipped with the sound-absorbing and slag-removing heat dissipation structure of the present invention works, because the muffler hole 12 is always in communication with the outside air through the guide groove 24, the powerful shock wave when the integrated nail-shooting bomb explodes will silence the heat and residues. The hole 12 rushes into the diversion groove 24 and is discharged from the slag discharge and heat dissipation hole 31 along the diversion channel. The sound waves generated by the explosion are absorbed by the plurality of mufflers 23 and are weakened, thereby effectively realizing the nail ejector. Silencing, heat dissipation and slagging function. Most of the heat generated by the explosion can be dissipated, and the nail shooter is always in a heat-exhausting state, which is beneficial to reduce the temperature of the nail shooter components and avoid safety accidents caused by the nail shooter overheating. The shock wave generated during the explosion can discharge all the residues and dust in time, which not only eliminates the timing of the slag discharge step, but also avoids the accumulation of fine dust inside the nail shooter, thereby increasing the service life of the nail shooter.

Embodiment five:

The split sound-absorbing and slag-discharging heat dissipation structure in the first embodiment of the present invention can also realize the power adjustment function. The muffler 3 is fixed to each other by threaded connection with the slag-discharging heat dissipation sleeve 2, and the nail tube 1 is restricted in the axial direction. The nail tube 1 is in clearance fit with the inner wall of the small diameter section 21, which can not only make a circular motion around the axis relative to the slag discharging heat dissipation sleeve 2, but also prevent air from flowing in the gap between the inner wall of the small diameter section 21 and the outer wall of the nail tube 1. As shown in Figure 14 to Figure 16, the power adjustable silencer and slag discharge heat dissipation structure of the fifth embodiment is a cross-sectional view under different power states. The nail tube 1 is provided with three pressure relief holes 8 spaced along the axial direction, and each pressure relief hole 8 It includes three, two and one pressure relief hole 8 from front to back, and each pressure relief hole 8 corresponds to a diversion groove 24 in the vertical direction along the axis. The pressure relief holes 8 in each pressure relief hole 8 correspond to each other in the axial direction.

Three vent holes 9 arranged in the axial direction are provided on the slag discharge heat sink 2, and each vent hole 9 corresponds to a diversion groove 24 in the vertical direction along the axis. Correspondingly, each vent hole 9 is also separate Corresponding to a pressure relief hole 8 corresponding to the aforementioned diversion groove 24. Therefore, when the nail tube 1 rotates to a certain angle relative to the exhaust heat dissipation sleeve 2, the internal space of the nail tube 1 can be communicated with the diversion groove 24 through the pressure relief channels formed by the pressure relief holes 8 and the exhaust holes 9 Therefore, the explosive gas from the nail projectile in the nail tube 1 can enter the diversion groove 24 through the pressure relief channel. Since the guide groove 24 communicates with the external air, the bore pressure in the nail tube 1 is reduced, and the purpose of reducing the power of the nail ejector is achieved. By rotating the nail tube 1 to change the number of pressure relief channels formed, the power of the nail ejector can be adjusted up and down. The more the number of pressure relief channels, the smaller the power of the nail ejector. On the contrary, the fewer the number of pressure relief channels. The greater the power of the nail shooter.

As shown in Figure 14, in this state, there is only one pressure relief hole 8 communicating with the exhaust hole 9, so the internal space of the nail tube 1 communicates with the diversion groove 24 only through one pressure relief channel. The sound-absorbing and slagging heat dissipation structure in this state In a state of high power. The inner space of the nail tube 1 of the sound-absorbing and slag-removing heat dissipation structure in the mid-power state in FIG. 15 is communicated with the diversion groove 24 through two pressure relief channels. The internal space of the nail tube 1 of the sound-absorbing and slag-removing heat dissipation structure in the low-power state in FIG. 16 is communicated with the diversion groove 24 through three pressure relief channels. When there is no pressure relief hole 8 communicating with the exhaust hole 9, the sound-absorbing and slagging and heat dissipation structure is in a full-power state.

When actually using the nail shooter equipped with the split sound-absorbing and slag-removing heat dissipation structure in this embodiment, each power state can be marked at a visible position outside the nail shooter, and the nail tube 1 or the slag-removing heat sink 2 can be adjusted. To the marked position, the nail shooter can be accurately adjusted to the proper power state.

It should be noted that the embodiments that can achieve the purpose of the present invention are not limited to the above and shown in the drawings, and the following statements are an incomplete summary of other embodiments that belong to the technical concept and protection scope of the present invention. The number, position, and shape of the muffler holes 12 in the present invention can be designed according to needs in the industrial manufacturing process, as long as it can communicate the muffler cavity and the internal space of the nail tube 1. The front end of the nail tube 1 can also be provided with multiple steps to facilitate the assembly and positioning of other parts (such as a dust cover, etc.), which can also be increased or decreased as needed.

In the embodiment in which the muffler fin 23 is arranged on the slag radiating sleeve 2, the mutual limitation, fixed connection, installation and coordination of the nail tube 1, the slag radiating sleeve 2 and the muffler cover 3 can have various changes and adjustments. As long as the nail tube 1, the slag discharging heat sink 2 and the muffler cover 3 are relatively fixed on the axis, and the cooperation between the three can realize that the heat and residue rushed from the muffler hole 12 can only or basically only It is sufficient that the outside can be discharged along the diversion channel, and it does not rule out the need to cooperate with other parts to realize the mutual fixing of the three. In the embodiment in which the sound-absorbing sheet 23 is directly arranged on the nail tube 1, the connection and fixing method and the limiting method of the nail tube 1 and the sound-absorbing cover 3 can also have various changes and adjustments, as long as the nail tube 1 and the sound-absorbing cover 3 are on the axis. The upper part is relatively fixed, and the cooperation between the two can realize that the heat and residue rushed out of the muffler hole 12 can only or basically only be discharged to the outside world along the diversion channel, and it is not ruled out that other parts need to be matched A way to achieve mutual fixation between the two.

The communication between the muffler hole 12 and the diversion channel is not limited to the above-mentioned manner, as long as it can be ensured that the muffler hole 12 can always communicate with the diversion channel. For example, the slag discharging heat sink 2 may not be provided with a through hole. When the slag discharging heat sink 2 does not include a connecting part, the front end of the slag discharging heat sink 2 does not abut the nail tube 1, and the muffler hole 11 will not be The slag discharging heat dissipation sleeve 2 covers, and the muffler hole 12 is directly exposed to the muffler cavity, which realizes the communication between the muffler hole 12 and the diversion groove 24. In this case, the front end of the muffler cover 3 can be screwed to the nail tube 1 To maintain the relative fixation of the two in the axial direction. In the above embodiment, the number or number of spirals, spacing, thickness of the silencer sheet 23, as well as the number and position of the notch 26 on the silencer sheet 23 may also have other settings. For example, the position and number of the notch 26 directly lead to the length of the diversion channel. , And the length of the diversion channel is related to the silencing and slagging heat dissipation effect, so in actual production, the above factors can be designed according to requirements. The notch 26 can also be replaced by other designs that can provide more diversion routes, such as a through hole on the sound-absorbing sheet 23. In addition, the structure of the sound-absorbing sheet 23 and the guide channel is not limited to the above-mentioned embodiment. For example, the sound-absorbing sheet 23 can also be set to an "S" shape or a "W" shape, etc., so that the structure of the guide channel also follows the structure of the sound-absorbing sheet 23. The objective of the present invention can be achieved as long as the diversion channel can pass through the multi-layer silencer sheet 23 along the axial direction. On the one hand, the explosion sound from the silencer hole 12 can pass through the multiple silencer sheets 23 Absorb and weaken. On the other hand, the muffler hole 12 cannot communicate with the outside air directly or only through a short path, which can ensure the chamber pressure required when the nail tube 1 explodes.

The position and number of the slag discharge and heat dissipation holes 31 can also have various designs, as long as they can communicate with the external air and the diversion channel. In addition, the communication between the diversion channel and the outside air is not limited to the way in which the muffler cover 3 is provided with the slag discharging heat dissipation hole 31 in the above embodiment, and it can also be used between the rear end of the muffler cover 3 and the nail tube 1 or the slag discharging heat sink 2. The gap 33 is realized. Here, the split-type noise-removing and slag-removing heat dissipation structure in Embodiment 1 is taken as an example. As shown in FIG. 17, the heat and residues are flushed out of the gap on the rearmost muffler 23 and pass through the rear end of the muffler 3 The gap 33 between and the slag discharge heat dissipation jacket 2 discharges the nail shooter. According to the above description, the relative positions of the slag discharge and heat dissipation holes 31 or the gap 33 and the muffler hole 12 may also be arranged in other ways. For example, the slag discharge and heat dissipation holes 31 or the gap 33 may be arranged in front of the muffler hole 12.

On the basis of not affecting the working mode and effect of the nail ejector itself, the above-mentioned sound-absorbing and slag-removing heat dissipation structure is suitable for a variety of suitable nail-shooting structures in the prior art. The split type noise-removing and slag-removing heat dissipation structure in the first embodiment is used below. Give an example of a matching method. As shown in FIG. 17, the rear end of the slag discharging heat dissipation sleeve 2 has a raised retaining ring 27, and the inner wall of the front end of the jacket 7 of the nail shooter has a second retaining ring 71. When assembling, install the slag discharging heat sink 2 from the opening at the rear end of the outer shell 7 and extend from the front opening. The clamping ring 27 and the clamping ring 2 71 cooperate with each other so that the slag discharging heat sink 2 can only be relative to the outer shell. 7 Move backward along the axis, but cannot move forward, and then install the nail tube 1 from the front opening of the slag discharging heat dissipation sleeve 2, and finally install the muffler cover 3. The front end of the firing pin sleeve 5 of the nail shooter is located in the nail tube 1, and the two ends of the return spring 6 abut on the inner wall of the firing pin sleeve 5 and the slag discharging heat sink 2 respectively, so that the slag discharging heat sink 2 wants to move backwards. The force of the return spring 6 needs to be overcome. It should be noted that the figure shown in FIG. 18 is only an example, and the aforementioned sound-absorbing and slag-removing heat dissipation structure can be appropriately adjusted based on the overall structural design of the nail shooter.

The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present invention, but are not used to limit the present invention. Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims

A nail tube for a nail ejector, the nail tube includes at least one silencer hole, and is characterized in that it further includes a silencer sheet and a diversion channel, the sound absorption sheet is arranged on the outer wall of the nail tube, and the diversion channel passes through the The muffler piece communicates the muffler hole and outside air.
A slag discharging heat dissipation sleeve of a nail shooter, characterized in that it comprises a sound-absorbing sheet and a diversion channel, the sound-absorbing sheet is arranged on the outer wall of the slag discharging heat dissipation sleeve, and the diversion channel is connected to the nail tube through the sound-absorbing sheet The muffler hole on the upper and the outside air.
A noise-removing and slag-removing heat dissipation structure of a nail shooter, which is characterized in that it comprises a nail tube, a sound-absorbing cover, a sound-absorbing cavity, a sound-absorbing sheet, and a diversion channel. The sound-absorbing cavity is formed between the nail tube and the sound-absorbing cover The sound-absorbing sheet is arranged in the sound-absorbing cavity, and the diversion channel communicates with the sound-absorbing hole on the nail tube and the outside air through the sound-absorbing sheet.
The sound-absorbing and slag-removing heat dissipation structure according to claim 3, wherein the nail tube is the nail tube according to claim 1, and the sound-absorbing sheet and the diversion channel are the sound-absorbing sheet on the nail tube and Diversion channel.
The sound-absorbing and slag-removing heat dissipation structure according to claim 3, further comprising the slag-removing heat dissipation sleeve according to claim 2, the slag-removing heat dissipation sleeve is sleeved on the nail tube, the sound-absorbing sheet and The diversion channel is the sound-absorbing fin and the diversion channel on the slag discharging heat dissipation jacket.