CN210998522U

CN210998522U - Split type spiral silencing, deslagging and heat dissipating structure of nail shooter and deslagging and heat dissipating sleeve

Info

Publication number: CN210998522U
Application number: CN201921920590.4U
Authority: CN
Inventors: 梁平; 张小波; 潘永涛; 侯德彬
Original assignee: Sichuan Xingu Technology Development Co ltd
Current assignee: Sichuan Xingu Technology Development Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-07-14
Anticipated expiration: 2029-11-08

Abstract

The utility model provides a split type spiral noise-reduction slag-discharge heat-dissipation structure and a slag-discharge heat-dissipation sleeve of a nail shooter, which comprise a nail tube, a noise-reduction cover and a slag-discharge heat-dissipation sleeve; the nail tube is provided with at least one silencing hole; the slag discharging heat dissipation sleeve is sleeved between the nail pipe and the silencing cover, a spiral silencing sheet is arranged along the axial direction of the slag discharging heat dissipation sleeve, the inner wall of the silencing cover is matched with the silencing sheet to form a spiral diversion trench which is at least partially sealed in the circumferential direction, and the silencing hole is communicated with the inner space of the nail pipe and the diversion trench; the diversion trench is communicated with the outside air through the deslagging heat dissipation hole and/or communicated with the outside air through a gap between the end part of the silencing cover and the deslagging heat dissipation sleeve. The silencing, deslagging and heat dissipating structure enables the inner space of the nail tube to be communicated with the outside all the time, heat and residues can be discharged out of the silencing cover in time, and explosion sound is weakened through absorption of the silencing sheet, so that the silencing, deslagging and heat dissipating structure has a good silencing, deslagging and heat dissipating function, and the service life and safety coefficient of the nail shooter are improved.

Description

Split type spiral silencing, deslagging and heat dissipating structure of nail shooter and deslagging and heat dissipating sleeve

Technical Field

The utility model relates to a ail shooter field especially relates to a split type spiral amortization of ail shooter is arranged sediment heat radiation structure and is arranged sediment heat dissipation cover.

Background

When the nail shooter is used, the integrated nail shooting bomb explodes in the nail pipe, gas generated by explosion pushes the shooting nail into the base body, the nail shooting process is completed, but the explosion can generate huge noise at the same time, and sound wave impact is formed on site construction personnel. In order to overcome noise generated by explosion, a silencing hole is usually processed on the nail tube, a silencing cover is sleeved outside the nail tube, a closed silencing cavity is formed between the nail tube and the silencing cover, and the noise enters the silencing cavity through the silencing hole to be weakened, so that the noise reduction effect can be achieved. But the residue piece after the nail shooting bullet explosion also can follow the amortization chamber of amortization hole entering simultaneously, and the residue can be silted up in the amortization chamber, and the time of having of a specified duration still can be caked, and amortization chamber volume is less, needs regularly to dismantle the amortization cover in time to clear up the residue, and it is very inconvenient to use, still can influence work efficiency. In addition, still can produce a large amount of heats when the ail shooter explodes, and partial heat also can get into the amortization chamber through the amortization hole, and the heat can not obtain effectual scattering and disappearing, consequently along with the increase of shooting number of times, the temperature of amortization cover can rise gradually, leads to inconvenient shell action of moving back, still can bring serious potential safety hazard for constructor.

Based on the above problems, the technical personnel develop the nail shooter capable of realizing the heat dissipation of the discharged slag, the discharged slag heat dissipation hole is blocked when the nail shooter is triggered in the discharged slag heat dissipation mode in the prior art, the percussion is closed, the discharged slag heat dissipation hole is opened when the nail shooter is reset, and the discharged slag heat dissipation is realized. The disadvantage of this kind of mode is that the highest air current of temperature is the strongest when the integrative ail shooter is explosion state, and the sealed condition during the percussion makes the heat most by the ail shooter absorption, and the impact force makes inside tiny dust residue gets into the nail shooter through the clearance between the nail shooter part again, resets and arranges the big granule residue through shaking the nail shooter after the row's of sediment louvre is opened. The slag-discharging heat-dissipating mode has slow heat-dissipating and temperature-reducing effect, and fine dust in the nail shooter can not be effectively discharged and is in a high-temperature and high-pressure environment for a long time, so that the gun is easily clamped, and further safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a split type spiral amortization of ail shooter is arranged sediment heat radiation structure and is arranged sediment heat dissipation cover, solves among the prior art problem that the noise elimination of ail shooter is arranged the sediment radiating effect not good.

In order to achieve the above and other related objects, one embodiment of the present invention provides a split spiral silencing, deslagging and heat dissipating structure of a nail shooter, comprising a nail tube and a silencing cover, wherein the nail tube is launched in a forward direction; a silencing cavity is formed between the inner wall of the silencing cover and the outer wall of the nail tube; the nail tube comprises a silencing hole part, the silencing hole part is provided with at least one silencing hole, and the silencing hole is communicated with the inner space of the nail tube and the silencing cavity; the method is characterized in that: also comprises a slag discharge heat dissipation sleeve; the slag discharging heat dissipation sleeve is sleeved between the nail tube and the silencing cover; the nail pipe is in clearance fit with the slag discharging heat dissipation sleeve so as to prevent heat and residues rushed out of the silencing hole from entering the nail shooter from the space between the nail pipe and the slag discharging heat dissipation sleeve; a spiral type noise reduction sheet is arranged along the axial direction of the slag discharging heat dissipation sleeve, the noise reduction sheet extends from the outer wall of the slag discharging heat dissipation sleeve to the inner wall of the noise reduction cover, the inner wall of the noise reduction cover is matched with the noise reduction sheet to form a spiral type diversion trench which is at least partially sealed in the circumferential direction, and the diversion trench comprises a first opening at the front end and a second opening at the rear end; the silencing hole is communicated with the inner space of the nail pipe and the diversion trench; the diversion trench is communicated with the outside air through a slag discharging heat dissipation hole arranged on the silencing cover, and/or the diversion trench is communicated with the outside air through a gap between the end part of the silencing cover and the slag discharging heat dissipation sleeve.

Optionally, a communicating portion is disposed at an end portion of the deslagging heat dissipation sleeve corresponding to the silencing hole portion, an annular channel communicated with the silencing hole is formed at an inner side of the communicating portion, and at least one through hole is disposed on the deslagging heat dissipation sleeve and is communicated with the annular channel and the diversion trench.

Optionally, a first limiting disc extending radially outwards is arranged on the front side of the silencing hole part, and the front end surface of the communicating part abuts against the rear end surface of the first limiting disc; the front end of the silencing cover is provided with a second limiting disc extending inwards along the radial direction, and the rear end face of the second limiting disc abuts against the front end face of the first limiting disc; the outer diameter of the first limiting disc is not larger than the maximum outer diameter of the silencing sheet; the silencing cover is fixedly connected with the deslagging heat dissipation sleeve.

Optionally, the silencing sheet is provided with a notch and/or a through hole which are axially communicated with at least two adjacent spirals of the diversion trench.

Preferably, the position arrangement of the notches and/or through holes on the adjacent spirals of the noise reduction sheet is provided with an angular deviation in the circumferential direction.

Preferably, the number of the notches or the through holes on the adjacent spirals of the silencing piece is one, and a 180 ° deviation is provided in the circumferential direction.

Optionally, the silencing cover is in threaded connection with the deslagging heat dissipation sleeve.

Preferably, the silencing hole is positioned in front of the first opening, and the deslagging heat dissipation hole or the gap is positioned behind the second opening; or the silencing hole is positioned behind the second opening, and the deslagging heat dissipation hole or the gap is positioned in front of the first opening.

The utility model also provides a slag discharging and heat dissipating sleeve of the nail shooter, the nail shooter comprises a nail tube and a silencing cover, and the launching direction of the nail tube is the front; a silencing cavity is formed between the inner wall of the silencing cover and the outer wall of the nail tube; the nail pipe comprises a silencing hole part, the silencing hole part is provided with at least one silencing hole, and the silencing hole is used for communicating the inner space of the nail pipe with the silencing cavity; the method is characterized in that: the slag discharging heat dissipation sleeve is sleeved between the nail pipe and the silencing cover and can be in clearance fit with the nail pipe so as to prevent heat and residues rushed out of the silencing hole from entering the nail shooter from the space between the nail pipe and the slag discharging heat dissipation sleeve; the slag discharging heat dissipation sleeve is provided with a spiral silencing sheet along the axial direction, the silencing sheet extends from the outer wall of the slag discharging heat dissipation sleeve to the inner wall of the silencing cover, and the silencing sheet can be matched with the inner wall of the silencing cover to form a spiral diversion trench which is sealed in at least part of the circumferential direction.

Optionally, a communicating portion is disposed at an end portion of the deslagging heat dissipation sleeve corresponding to the silencing hole portion, an annular channel capable of communicating with the silencing hole is formed on an inner side of the communicating portion, and at least one through hole is disposed on the deslagging heat dissipation sleeve and communicates the annular channel and the diversion trench.

The utility model provides a pair of sediment heat radiation structure is arranged in split type spiral amortization of ail shooter under the prerequisite that does not change the working method and the effect of existing equipment, sets up the hush piece at the surface of arranging sediment heat dissipation cover, forms the guiding gutter of intercommunication, and the guiding gutter is linked together with bloop and outside air on the nail pipe all the time, and beneficial effect lies in:

1. the silencing sheet can effectively absorb sound wave vibration generated during explosion and reduce explosion sound generated by the nail shooter during explosion.

2. Because the nail pipe inner space with the external world is in the connected state all the time, the heat can in time distribute out through the guiding gutter, can effectively reduce the temperature of penetrating nail ware internals, avoided the potential safety hazard because of the high temperature brings.

3. The residue can be discharged out of the nail shooting device through the diversion trench at any time, the residue is not required to be frequently disassembled and cleaned, the using procedure of the nail shooting device is simplified, and the working efficiency is improved.

4. Even fine dust can be smoothly discharged out of the nail shooting device, the phenomenon that a gun is blocked due to agglomeration of fine residues in the nail shooting device is avoided, the safety factor of the use of the nail shooting device is improved, and the service life of the nail shooting device is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a sectional view of the split spiral silencing, deslagging and heat dissipating structure in the embodiment of the present invention;

FIG. 2 is a cross-sectional view of a nail tube in an embodiment of the present invention;

FIG. 3 is a schematic structural view of the slag-removing heat-dissipating sleeve according to the embodiment of the present invention;

FIG. 4 is a rear view of the slagging heat sink jacket of FIG. 3;

FIG. 5 is a sectional view of a split spiral silencing, deslagging and heat dissipating structure in another embodiment of the present invention;

fig. 6 is a schematic view of the matching mode of the nail shooter using the split type spiral silencing, deslagging and heat dissipating structure of the embodiment of the present invention.

In the figure: 1. nailing a pipe; 11. a silencing hole part; 12. a silencing hole; 13. a first limiting disc; 2. a slag discharging and heat dissipating sleeve; 21. a small diameter section; 22. a large diameter section; 23. a silencing sheet; 24. a diversion trench; 25. a through hole; 26. a notch; 27. a first clamping ring; 28. a first opening; 29. a second opening; 3. a sound deadening hood; 31. deslagging and heat dissipation holes; 32. a second limiting disc; 33. a void; 4. connecting by screw thread; 5. a firing pin sleeve; 6. a return spring; 7. a jacket; 71. and a second clamping ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1 shows in the embodiment of the utility model provides a split type spiral amortization arranges sediment heat radiation structure's section view, including nail pipe 1, arrange sediment heat dissipation cover 2 and amortization cover 3, 1 transmission direction of nail pipe is the place ahead, arrange sediment heat dissipation cover 2 and overlap into from nail pipe 1 rear end, it is spacing in the place ahead along the axis by nail pipe 1, amortization cover 3 embolias from nail pipe 1 front end, it is spacing in the direction backward along the axis by nail pipe 1 and sediment heat dissipation cover 2 simultaneously, and with arrange sediment heat dissipation cover 2 threaded fixation, form the amortization chamber between 3 inner walls of amortization cover and the sediment heat dissipation cover 2 outer walls of arranging.

Fig. 2 is a sectional view of the nail tube 1 in the embodiment, the nail tube 1 includes a silencing hole portion 11 and a first limiting disc 13 located in front of the silencing hole portion 11, the silencing hole portion 11 is provided with at least one silencing hole 12, and the silencing hole 12 penetrates through the side wall of the nail tube 1. The silencing hole 11 in this embodiment is provided with two silencing holes 12 uniformly distributed around the circumference of the silencing hole 11, and the number and position of the silencing holes 12 can affect the silencing, deslagging and heat dissipation effects, so the arrangement of the silencing holes 12 can be designed as required in the industrial manufacturing process. In other embodiments, the silencing hole 11 can have other structures, but as long as the silencing hole 12 provided on the silencing hole 11 can play the role of discharging noise, heat and residue, and when the nailing device is in any state, the position of the firing pin sleeve in the nail tube 1 can not block the silencing hole 12, and the purpose of the utility model can be realized. The front end of the nail tube 1 may include a plurality of steps as shown in fig. 2 to facilitate assembly and positioning with other components (e.g., a dust cover, etc.), and may be increased or decreased as necessary.

As shown in fig. 1, the slag discharging heat dissipating sleeve 2 comprises a small diameter section 21 at the front end and a large diameter section 22 at the rear end, when the slag discharging heat dissipating sleeve 2 is installed, the small diameter section 21 is sleeved in from the rear end of the nail pipe 1, the front end surface of the small diameter section 21 abuts against the rear end surface of the first limiting disc 13, and the slag discharging heat dissipating sleeve 2 is limited in the forward direction along the axis by the first limiting disc 13. The inner wall of the small-diameter section 21 is in clearance fit with the nail tube 1, and air can be prevented from flowing in the clearance 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 a spiral silencing sheet 23 arranged along the axial direction, the silencing sheet 23 extends from the outer wall of the small-diameter section 2 to the inner wall of the silencing cover 3, the silencing sheet 23 is used for absorbing sound waves, and after the sound waves are absorbed by the plurality of layers of silencing sheets 23 in the axial direction, the sound generated by explosion can be weakened. The spiral type noise reduction sheet 23 is matched with the inner wall of the noise reduction cover 3 to form a spiral type flow guide groove 24 which is closed in at least partial circumferential direction, and the flow guide groove 24 comprises a first opening 28 at the front end and a second opening 29 at the rear end. Heat and debris can flow from the first opening 28 to the second opening 29. as shown in fig. 3 and 4, the noise damper 23 can also be provided with notches 26, and the notches 26 can be used to axially communicate with two adjacent spirals of the channel 24, thereby providing more flow paths for heat and debris. The plurality of notches 26 can be formed in the silencing sheet 23, the notches 26 in the adjacent spirals of the silencing sheet 23 are arranged in a staggered mode, so that the circulation lines are increased, sound waves can be better controlled in the silencing cover 3, the required percussion power cannot be reduced during percussion, and the notches 26 can also be replaced by through holes formed in the silencing sheet 23. The air guide groove 24 makes the external air and the muffling hole 12 always in a communicated state and provides a passage for the discharge of heat and residue. As shown in fig. 1, in order to facilitate the communication between the muffling hole 12 and the diversion trench 24 in this embodiment, a communication portion is disposed at an end portion of the slagging heat-dissipating sleeve 2 corresponding to the muffling hole portion 11, an annular channel communicated with the muffling hole is formed inside the communication portion, and the annular channel is communicated with the diversion trench 24 through at least one through hole 25 formed in the slagging heat-dissipating sleeve 2, so that the muffling hole 12 can be communicated with the diversion trench 24, and the sound waves, heat and residues can be discharged into the diversion trench 24 from the muffling hole 12. In other embodiments, the communication between the muffling hole 12 and the diversion trench 24 may have other structural forms, but the muffling hole 12 can be always communicated with the diversion trench 24 as long as the communication can be achieved, which all belong to the technical concept and the protection scope of the present invention. For example, the slagging heat dissipation sleeve 2 may not be provided with the through hole 25, when the slagging heat dissipation sleeve 2 does not include the portion (i.e., the communicating portion) at the front end of the first opening 28 shown in fig. 4, the front end of the slagging heat dissipation sleeve 2 does not abut against the nail pipe 1, the silencing hole portion 11 is not covered by the slagging heat dissipation sleeve 2, and the silencing hole 12 and the first opening 28 are exposed in the silencing cavity at the same time, so that the silencing hole 12 can communicate with the first opening 28, that is, the silencing hole 12 communicates with the diversion trench 24, in this case, the front end of the silencing cover can be screwed with the nail pipe to keep the two relatively fixed in the axial direction. In addition, the number, the interval and the thickness of the spiral of the silencing sheet 23 and the number and the positions of the notches 26 on the silencing sheet 23 can be set in other ways, for example, the positions and the numbers of the notches 26 directly result in the length of the distance of the flow path line, and the length of the flow path line is related to the silencing, heat dissipation and slag removal effects, so that the above factors can be designed according to specific requirements during actual manufacturing.

As shown in figure 1, the silencing cover 3 is sleeved in from the front end of the nail pipe 1 in the embodiment, and the inner diameter of the silencing cover 3 is consistent or basically consistent with the maximum outer diameter of the silencing sheet 32, so that heat and residues can only or basically only flow from the front end to the rear end of the nail pipe 1 through the spiral diversion trench 24 or the notch 26 on the diversion trench 24 in general. The front end of the silencing cover 3 is provided with a second limiting disc 32, the rear end face of the second limiting disc 32 abuts against the front end face of the first limiting disc 13 of the nail tube 1, the outer diameter of the first limiting disc 13 is larger than the inner diameter of the second limiting disc 32 and not larger than the maximum outer diameter of the silencing sheet 23, the rear end of the silencing cover 3 is in threaded connection with the rear end of the small-diameter section 21, the rear end face of the silencing cover 3 abuts against the front end face of the large-diameter section 22, and the silencing cover can not abut against the front end face of the large-diameter section 22 in other embodiments. The above-described engagement of the noise damper 3 causes the nail pipe 1 to be restrained in the axially forward direction with respect to the slag discharging heat dissipating sleeve 2. The silencing cover 3 is provided with a deslagging heat radiation hole 31 positioned at the rear of the second opening 29, and the deslagging heat radiation hole 31 can discharge heat and residues from the diversion trench 24. In other embodiments, the muffling cover 3 may further include a plurality of deslagging louvers 31, and the position of the deslagging louvers 31 is not limited to the rear of the second opening 29, and may be disposed at other positions corresponding to the spiral guiding groove 24, as long as the communication between the outside air and the guiding groove 24 is achieved. It should be noted that, the connection mode between the silencing cover 3, the nail pipe 1 and the slag discharging heat dissipation sleeve 2 is not limited to the mode shown in the above and the accompanying drawings, as long as the three can be realized to have the axially relatively fixed position relationship, and the cooperation between the nail pipe 1, the slag discharging heat dissipation sleeve 2 and the silencing cover 3 can realize that the heat and the residue which are flushed out from the silencing hole 12 can only or basically only be discharged along the channel formed by the diversion trench 24 and the notch 26 to the outside, which belongs to the technical idea and the protection scope of the present invention.

Fig. 5 shows a schematic view of a spiral silencing and deslagging heat dissipation structure in another embodiment of the present invention, the silencing cover 3 may not have the deslagging heat dissipation hole 31, a gap 33 is formed between the rear end of the silencing cover 3 and the deslagging heat dissipation sleeve 2, the heat and the residue are flushed out from the second opening 29, and then the nail shooter is discharged through the gap 33. In this embodiment, the sound-deadening chamber between the sound-deadening cap 3 and the slag removing heat-radiating jacket 2 is defined by the sound-deadening cap 3, the slag removing heat-radiating jacket 2, and the rearmost sound-deadening sheet 23. In this way, the silencing cover 3 can be connected and fixed with the external thread arranged at the front end of the deslagging heat dissipation sleeve 2. The silencing cover and the deslagging heat dissipation sleeve are not limited to be sleeved from the front end and the rear end of the nail tube respectively in combination with the integral design of the nail shooter, the fixing positions of the deslagging heat dissipation sleeve and the silencing cover can be the front end part or the rear end part of the silencing cover, and correspondingly, the gap can also be positioned at the rear end or the front end of the silencing cover.

Install the utility model provides a split type amortization is arranged sediment heat radiation structure's ail shooter during operation, because bloop 12 is in the connected state through guiding gutter 24 with the outside air all the time, powerful shock wave when integrative ail shooter explodes dashes into guiding gutter 24 with heat and residue in through bloop 12, and discharge from arranging sediment louvre 31 and/or space 33 along the passageway that guiding gutter 24 and breach 26 formed, the sound wave that the explosion produced is weakened through the absorption of multilayer bloop 23 in the axial, thereby realized the amortization heat dissipation of ail shooter effectively and arrange the sediment function. Most of heat generated by explosion can be emitted, and the nail shooter is always in a heat extraction state, so that the temperature of parts of the nail shooter is favorably reduced, and safety accidents caused by overheating of the nail shooter are avoided. The shock wave generated during explosion can discharge the residual dust and the like in time, so that not only is the step of timing slag discharge omitted, but also the fine dust can be prevented from being accumulated and agglomerated inside the nail shooter, and the service life of the nail shooter is prolonged.

On the basis of not influencing the working mode and the effect of the nail shooter, the split type silencing, deslagging and heat dissipation structure is suitable for various suitable nail shooter structures in the prior art, and a matching mode is illustrated below. As shown in fig. 6, the back end of the slag discharging heat dissipation sleeve 2 is provided with a convex first clamping ring 27, and the inner wall of the front end of the outer sleeve 7 of the nail shooter is provided with a second clamping ring 71. During assembly, the slag discharging and heat dissipating sleeve 2 is arranged in the opening at the rear end of the outer sleeve 7 and extends out of the opening at the front end, the first clamping ring 27 and the second clamping ring 71 are matched with each other to ensure that the slag discharging and heat dissipating sleeve 2 can only move backwards relative to the outer sleeve 7 along the axial direction but can not move forwards, then the nail pipe 1 is arranged in the opening at the front end of the slag discharging and heat dissipating sleeve 2, and finally the silencing cover 3 is arranged. The front end of a firing pin sleeve 5 of the nail shooter is positioned in the nail tube 1, and two ends of a return spring 6 are respectively abutted against the inner walls of the firing pin sleeve 5 and the deslagging heat dissipation sleeve 2, so that the deslagging heat dissipation sleeve 2 needs to overcome the force of the return spring 6 if the deslagging heat dissipation sleeve 2 wants to move backwards. It should be noted that fig. 5 is only an example, and the length and structure of the large diameter section 22 can be adjusted according to the overall structure design of the nail shooter, for example, the structure design of the nail shooter at the rear end of the split silencing, deslagging and heat dissipating structure.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A split type spiral noise-reduction, slag-discharge and heat-dissipation structure of a nail shooter comprises a nail tube and a noise reduction cover, wherein the emission direction of the nail tube is in front; a silencing cavity is formed between the inner wall of the silencing cover and the outer wall of the nail tube; the nail tube comprises a silencing hole part, the silencing hole part is provided with at least one silencing hole, and the silencing hole is communicated with the inner space of the nail tube and the silencing cavity; the method is characterized in that: also comprises a slag discharge heat dissipation sleeve;

the slag discharging heat dissipation sleeve is sleeved between the nail tube and the silencing cover;

the nail pipe is in clearance fit with the slag discharging heat dissipation sleeve so as to prevent heat and residues rushed out of the silencing hole from entering the nail shooter from the space between the nail pipe and the slag discharging heat dissipation sleeve;

a spiral type noise reduction sheet is arranged along the axial direction of the slag discharging heat dissipation sleeve, the noise reduction sheet extends from the outer wall of the slag discharging heat dissipation sleeve to the inner wall of the noise reduction cover, the inner wall of the noise reduction cover is matched with the noise reduction sheet to form a spiral type diversion trench which is at least partially sealed in the circumferential direction, and the diversion trench comprises a first opening at the front end and a second opening at the rear end;

the silencing hole is communicated with the inner space of the nail pipe and the diversion trench;

the diversion trench is communicated with the outside air through a slag discharging heat dissipation hole arranged on the silencing cover, and/or the diversion trench is communicated with the outside air through a gap between the end part of the silencing cover and the slag discharging heat dissipation sleeve.

2. The split type spiral silencing, deslagging and heat dissipating structure of claim 1, wherein: the end part of the deslagging heat dissipation sleeve corresponding to the silencing hole part is provided with a communicating part, an annular channel communicated with the silencing hole is formed on the inner side of the communicating part, and the deslagging heat dissipation sleeve is provided with at least one through hole which is communicated with the annular channel and the diversion trench.

3. The split type spiral silencing, deslagging and heat dissipating structure of claim 2, wherein:

a first limiting disc extending outwards along the radial direction is arranged on the front side of the silencing hole part, and the front end face of the communicating part abuts against the rear end face of the first limiting disc;

the front end of the silencing cover is provided with a second limiting disc extending inwards along the radial direction, and the rear end face of the second limiting disc abuts against the front end face of the first limiting disc;

the outer diameter of the first limiting disc is not larger than the maximum outer diameter of the silencing sheet;

the silencing cover is fixedly connected with the deslagging heat dissipation sleeve.

4. The split type spiral silencing, deslagging and heat dissipating structure of claim 1, wherein: the silencing sheet is provided with notches and/or through holes which are axially communicated with at least two adjacent spirals of the diversion trench.

5. The split type spiral silencing, deslagging and heat dissipating structure of claim 4, wherein: and angular deviations are arranged on the circumferential direction of the gaps and/or the through holes on the adjacent spirals of the silencing sheet.

6. The split type spiral silencing, deslagging and heat dissipating structure of claim 5, wherein: the notches or the through holes on the adjacent spirals of the silencing sheet are all one, and 180-degree deviation is arranged in the circumferential direction.

7. The split type spiral silencing, deslagging and heat dissipating structure of claim 1 or 3, wherein: the silencing cover is in threaded connection with the deslagging heat dissipation sleeve.

8. The split type spiral silencing, deslagging and heat dissipating structure of claim 1 or 2, wherein: the silencing hole is positioned in front of the first opening, and the slag-discharging heat-radiating hole or the gap is positioned behind the second opening; or the silencing hole is positioned behind the second opening, and the deslagging heat dissipation hole or the gap is positioned in front of the first opening.

9. A slag discharge and heat dissipation sleeve of a nail shooter comprises a nail tube and a silencing cover, wherein the emission direction of the nail tube is in the front; a silencing cavity is formed between the inner wall of the silencing cover and the outer wall of the nail tube; the nail pipe comprises a silencing hole part, the silencing hole part is provided with at least one silencing hole, and the silencing hole is used for communicating the inner space of the nail pipe with the silencing cavity; the method is characterized in that: the slag discharging heat dissipation sleeve is sleeved between the nail pipe and the silencing cover and can be in clearance fit with the nail pipe so as to prevent heat and residues rushed out of the silencing hole from entering the nail shooter from the space between the nail pipe and the slag discharging heat dissipation sleeve; the slag discharging heat dissipation sleeve is provided with a spiral silencing sheet along the axial direction, the silencing sheet extends from the outer wall of the slag discharging heat dissipation sleeve to the inner wall of the silencing cover, and the silencing sheet can be matched with the inner wall of the silencing cover to form a spiral diversion trench which is sealed in at least part of the circumferential direction.

10. The slagging heat dissipation sleeve according to claim 9, wherein: the end part of the deslagging heat dissipation sleeve corresponding to the silencing hole part is provided with a communicating part, an annular channel capable of being communicated with the silencing hole is formed on the inner side of the communicating part, at least one through hole is formed in the deslagging heat dissipation sleeve, and the through hole is communicated with the annular channel and the diversion trench.