A ceiling nail fixing device

Abstract

The present invention discloses a ceiling nail fixing device, including a nail fixing device body and a silencer connected thereto, wherein the silencer is composed of a silencer pipe, a voltage regulating sleeve and a silencer outer sleeve, and is also provided with a heat insulation sleeve sleeved outside the connecting outer sleeve. A silencer chamber is formed between the silencer pipe and the silencer outer sleeve, the silencer pipe has a slag discharge silencer hole connected to the silencer chamber, a slag discharge gap is provided between the heat insulation sleeve and the silencer outer sleeve, and the silencer outer sleeve is provided with a slag discharge hole. This structure forms a new slag discharge system, and the residue no longer enters the nail fixing device body, effectively preventing corrosion and jamming of the internal components, and extending the service life of the nail fixing device; the heat insulation sleeve can insulate and reduce the influence of high temperature; the various components of the slag discharge system work together to improve the slag discharge efficiency and stability, and also have positive effects in terms of silencing and dust prevention, ensuring that long-term work does not require disassembly and cleaning, greatly improving work efficiency, reducing decoration costs, and improving the overall performance and safety of the ceiling nail fixing device.

Description

Technical Field

[0001] The invention relates to the technical field of fastening tools, in particular to a ceiling nail fixing device. Background Art

[0002] In the field of building decoration, ceiling nailers are indispensable tools, and their structural design has always attracted much attention, especially the slag removal related design.

[0003] For a long time, the design concept of traditional ceiling nailers has formed an inherent pattern in slag discharge. Existing ceiling nailers generally include a nailer body and a silencer connected thereto. The silencer is usually composed of a silencer pipe, a pressure regulating sleeve mounted on the silencer pipe, and an outer silencer jacket. In the design of the slag discharge channel, without exception, the slag is first passed through the slag discharge silencer hole on the silencer pipe and the slag discharge hole of the pressure regulating sleeve, and finally the residue produced by the explosion enters the interior of the nailer body, and then is discharged from the protective cover of the ceiling nailer. This design concept is deeply rooted in the industry, widely accepted and applied, and has formed a technical bias.

[0004] It is generally believed in the industry that slag removal can only follow such a path, that is, to complete the residue discharge process through the inside of the nail fixer body, and few designers question the rationality of this slag removal path or try to explore other possible slag removal methods. This technical bias has led to the fact that in the research and development process of the nail fixer, the research and development direction is limited to how to optimize the slag removal structure inside the main body of the nail fixer, while ignoring the possibility of fundamentally changing the slag removal path, such as improving the shape, size or position of the slag removal silencer hole, and adjusting the slag removal characteristics of the protective cover. Specific improved prior arts include a ceiling nail fixer and a protective cover disclosed in application number 2023110069638; a new type of automatic slag removal mini ceiling nail fixer disclosed in application number 2021214123515; and an axial slag removal silencer axial nail shooter disclosed in application number 2020218345731. In addition, in order to better discharge the residue inside the nail fixer, a handle for slag removal is also designed, such as a handle and a ceiling nail fixer including the handle disclosed in Application No. 2023220596727. For another example, in order to adapt to this slag removal system, a channel specifically for chip removal is provided on the pressure regulating sleeve, such as a pressure regulating sleeve and a pressure regulating silencer disclosed in Application No. 2023222840468.

[0005] However, this traditional slag removal method has drawbacks that are difficult to overcome. Since the residue must first enter the interior of the nail holder body, despite continuous efforts to optimize the internal slag removal structure, it is still impossible to avoid the residue remaining and flowing inside the nail holder. The residue can cause serious damage to key components in the nail holder, such as the firing pin assembly. The corrosive components in the residue will gradually corrode the firing pin assembly, causing corrosion pits on its surface and reduced material strength. At the same time, the accumulation of residue can easily lead to obstruction of the movement of the firing pin assembly and jamming, which will eventually cause the ceiling nail holder to fail to operate normally, greatly reducing its working reliability and service life, increasing maintenance costs and usage risks, and bringing many inconveniences to the efficient development of building decoration work.

[0006] The design concept of this application came into being after recognizing the limitations of this inherent technical bias. Through in-depth research and innovative thinking, the inherent design concept that traditional slag discharge must pass through the inside of the nail fixer body was broken, and a new slag discharge system was designed. That is, the residue is discharged into the silencer chamber through the slag discharge silencer hole, and an insulation sleeve is added to form a slag discharge gap between the insulation sleeve and the silencer jacket. At the same time, a slag discharge silencer hole is provided on the silencer jacket to connect the slag discharge gap and the silencer chamber, so that a new slag discharge channel is formed between the slag discharge silencer hole, the silencer chamber, the slag discharge hole and the slag discharge gap. In this way, the residue can be discharged directly from the slag discharge gap between the insulation sleeve and the silencer jacket, and no longer enters the nail fixer, effectively avoiding damage to the internal components of the nail fixer, fundamentally solving a series of problems caused by traditional slag discharge methods, and providing a new solution for performance improvement and stable operation of ceiling nail fixers. Summary of the invention

[0007] In view of the deficiencies in the background technology, the present invention provides a ceiling nail fixing device.

[0008] The technical solution adopted by the present invention is: a ceiling nail fixing device, including a nail fixing device body and a silencer connected to the nail fixing device body, the silencer includes a silencer pipe, a pressure regulating sleeve sleeved on the silencer pipe, and a silencer outer sleeve sleeved outside the pressure regulating sleeve, and also includes a heat insulation sleeve sleeved outside the silencer outer sleeve, a silencer chamber is formed between the silencer pipe and the silencer outer sleeve, a slag discharge silencer hole connected to the silencer chamber is provided on the silencer pipe, a slag discharge gap is left between the heat insulation sleeve and the silencer outer sleeve, and a slag discharge hole for connecting the slag discharge gap and the silencer chamber is provided on the silencer outer sleeve.

[0009] Furthermore, the outer ring of the pressure regulating sleeve is provided with at least one step ring, the muffler chamber is divided into a plurality of independent chambers by the step ring, and a slag discharge channel is provided on the step ring.

[0010] Furthermore, the slag discharge silencer hole is arranged obliquely, and the slag discharge silencer hole is located at the front end of the silencer chamber, and the slag discharge hole is located at the rear end of the silencer chamber.

[0011] Furthermore, a step 1 is provided on the outer wall of the silencer pipe, and the step 1 abuts against the front end of the voltage regulating sleeve.

[0012] Furthermore, the rear end of the silencer sleeve has an internal thread threadedly connected to the return sleeve of the nail fixing device body, and the front end of the return sleeve is pressed tightly on the step 2 on the pressure regulating sleeve.

[0013] Furthermore, a sealing step is provided on the outer wall of the rear end of the noise-reducing sleeve, the sealing step is sealed and matched with the heat-insulating sleeve, and the noise-reducing sleeve and the heat-insulating sleeve are rotationally matched.

[0014] Furthermore, the slag discharge gap is divided into a plurality of slag discharge guide grooves by separation steps on the inner wall of the thermal insulation sleeve, and a slag discharge notch is provided at the front end of the thermal insulation sleeve.

[0015] Furthermore, it also includes a dust cover threadedly connected to the silencer pipe, and the silencer outer sleeve is provided with a step three that abuts against the separation step.

[0016] Furthermore, the aperture of the slag discharge silencer hole is smaller than the aperture of the slag discharge channel, and the height of the slag discharge gap is larger than the aperture of the slag discharge silencer hole but smaller than the aperture of the slag discharge channel.

[0017] Furthermore, the aperture of the slag discharge silencer hole is 1-2 mm, the height of the slag discharge gap is 1.5-2.5 mm, and the aperture of the slag discharge channel is 2-3 mm.

[0018] The beneficial effects of the present invention are:

[0019] 1. Protect the internal parts of the nail fixer and extend its service life

[0020] The ceiling nailer slag removal system designed by this patent has completely changed the traditional slag removal method. Through the innovative structural design, the residue will no longer enter the nailer, effectively avoiding the corrosion and jamming of key components such as the firing pin assembly in the nailer. The previous situation of component damage and performance degradation caused by residue erosion has been eliminated, thereby significantly extending the overall service life of the nailer, reducing the maintenance cost and downtime caused by frequent component replacement, and improving work efficiency and economic benefits.

[0021] 2. Improve slag discharge efficiency and stability

[0022] The new slag discharge system consists of a slag discharge silencer hole, a silencer chamber, a slag discharge hole and a slag discharge gap, forming a simple and direct slag discharge channel. Compared with the traditional complex slag discharge path that needs to pass through the main body of the nailer, this design reduces the obstruction and retention of residues during the slag discharge process, greatly improving the slag discharge efficiency. At the same time, the slag discharge system has a relatively stable structure and is not easily affected by the working status or failure of other components inside the nailer. It can continuously and stably discharge residues, ensuring the normal operation of the ceiling nailer in a long-term, high-intensity working environment.

[0023] 3. Optimize the noise reduction effect

[0024] While solving the slag discharge problem, this patent also improves the silencing effect. The reasonable layout of the silencing chamber between the silencing pipe and the silencing jacket and the slag discharge silencing hole, and the silencing chamber is divided into multiple independent chambers by the step ring, can still effectively reduce the noise generated by the explosion during the slag discharge process, reduce the noise pollution in the working environment, and provide more comfortable working conditions for operators.

[0025] 4. Promote technical innovation and industry development of ceiling nailers

[0026] This patent breaks through the technical prejudice of the traditional ceiling nailer slag removal design and provides new ideas and directions for technological innovation in the industry. It encourages more R&D personnel to re-examine traditional design concepts and explore more possible ways to optimize the structure and enhance the function, thereby promoting the continuous progress and development of the entire ceiling nailer industry at the technical level, and promoting related products to move to a higher level in terms of performance, quality and user experience, so as to meet the increasingly diversified and high-standard needs of the building decoration industry.

[0027] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the muffler and the return sleeve.

[0029] Figure 2 It is a cross-sectional schematic diagram of the muffler and the return sleeve.

[0030] Figure 3 It is a schematic diagram of the structure of the thermal insulation sleeve.

[0031] Figure 4 It is a structural schematic diagram of the return sleeve.

[0032] Figure 5 Schematic diagram of the muffler end.

[0033] Figure 6It is a partial cross-sectional schematic diagram of the muffler and the return sleeve.

[0034] Figure 7 It is a structural schematic diagram of the nail fixing device.

[0035] Figure 8 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0036] Figure 1-8 In: 1. Fixing device body; 2. Silencer; 3. Silencer pipe; 4. Pressure regulating sleeve; 5. Silencer outer sleeve; 6. Insulation sleeve; 7. Silencer chamber; 8. Slag discharge silencer hole; 9. Slag discharge gap; 10. Slag discharge hole; 11. Step ring; 12. Chamber; 13. Slag discharge channel; 14. Step one; 15. Step two; 16. Step three; 17. Return sleeve; 18. Internal thread; 19. Step four; 20. Sealing step; 21. Partition step; 22. Slag discharge guide groove; 23. Slag discharge notch; 24. Dust cover; 25. Step five. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] The invention provides a ceiling nail fixing device.

[0040] In this embodiment, refer to Figure 1-8 The ceiling nail fixing device comprises a nail fixing device body 1 and a silencer 2 connected to the nail fixing device body 1, the silencer 2 comprises a silencer pipe 3, a pressure regulating sleeve 4 sleeved on the silencer pipe 3 and a silencer jacket 5 sleeved outside the pressure regulating sleeve 4, and also comprises a heat insulating sleeve 6 sleeved outside the silencer jacket, a silencer chamber 7 is formed between the silencer pipe and the silencer jacket, a slag discharge silencer hole 8 connected to the silencer chamber is provided on the silencer pipe, a slag discharge gap 9 is left between the heat insulating sleeve and the silencer jacket, and a slag discharge hole 10 for connecting the slag discharge gap and the silencer chamber is provided on the silencer jacket.

[0041] In the above technical solution, by setting the heat insulation sleeve, the slag discharge silencer hole on the silencer pipe, the slag discharge gap between the heat insulation sleeve and the silencer outer sleeve, the silencer chamber and the slag discharge hole form a new slag discharge path (such as Figure 2 and 8 The entire path does not need to pass through the interior of the nail holder, which prevents residues from entering the interior of the nail holder and causing damage to internal components such as corrosion and jamming, significantly extending the service life of the nail holder and improving the convenience and stability of slag removal.

[0042] Specifically, at least one step ring 11 is provided on the outer ring of the voltage regulating sleeve, and the muffler chamber is divided into a plurality of independent chambers 12 by the step ring 11 . A slag discharge channel 13 is provided on the step ring 11 .

[0043] In this embodiment, the step ring of the outer ring of the pressure regulating sleeve divides the muffler chamber into multiple independent chambers, and a slag discharge channel is provided on the step ring. This structure can gradually optimize the muffler effect in different chambers, enhance the ability to reduce explosion noise, improve the muffler effect, and more effectively control the noise generated by the ceiling nail fixer during operation, reduce noise pollution in the working environment, and create relatively quiet and comfortable working conditions for operators. Among them, the slag discharge channel is used for muffler exhaust and also for the passage of residues.

[0044] It should also be noted that the slag discharge channel is mainly used for the passage of residues, so it can be set as a channel of various structural forms, such as an open "U"-shaped groove, a polygonal hole structure, a circular hole structure, etc. The circular hole structure is mainly used as an example for description.

[0045] Specifically, the slag discharge silencer hole is arranged obliquely, and the slag discharge silencer hole is located at the front end of the silencer chamber, and the slag discharge hole is located at the rear end of the silencer chamber.

[0046] In this embodiment, the slag discharge silencer holes are arranged at an angle to play the role of cutting the residue. The residue particles can quickly pass through the inclined slag discharge silencer holes driven by the airflow, and the residue particles can be cut into finer particles for subsequent discharge. The slag discharge silencer holes are arranged in two rows to ensure the slag discharge silencer effect. The slag discharge silencer holes and the slag discharge holes are arranged at both ends of the silencer chamber to improve the silencer effect.

[0047] Specifically, a step 14 is provided on the outer wall of the silencer pipe, and the step 14 abuts against the front end of the voltage regulating sleeve.

[0048] In the present embodiment, a step on the outer wall of the silencer pipe abuts against the front end of the pressure regulating sleeve. After the silencer outer sleeve and the return sleeve are threaded together, the pressure regulating sleeve can be stably pressed on the silencer pipe by the return sleeve. This structural design makes the installation of the silencer pipe inside the silencer more stable. After the silencer outer sleeve and the return sleeve are connected, the relative position relationship between the silencer pipe and the pressure regulating sleeve and the silencer outer sleeve is guaranteed to be stable, thereby maintaining the stability and reliability of the entire silencer structure. Moreover, the boltless structural design is easy to disassemble and assemble, and is convenient for cleaning the residue inside the silencer.

[0049] Specifically, the rear end of the silencer sleeve has an internal thread 18 threadedly connected to the return sleeve 17 of the nail fixing device body, and the front end of the return sleeve is pressed tightly on the step 2 15 on the pressure regulating sleeve.

[0050] In this embodiment, the silencer jacket is screwed to the return sleeve of the nail fixing body, which is convenient for disassembly and assembly. After the silencer jacket is screwed to the return sleeve, the step 4 19 on the silencer pipe and the step 5 25 on the silencer jacket interact with each other, and the silencer pipe, the pressure regulating sleeve and the silencer jacket are connected to the return sleeve of the nail fixing body as a whole for use. The entire silencer adopts a bolt-free structure, which is easy to disassemble and assemble, and is convenient for cleaning of residues.

[0051] Specifically, a sealing step 20 is provided on the outer wall of the rear end of the noise-reducing sleeve, and the sealing step 20 is sealedly matched with the heat-insulating sleeve 6, and the noise-reducing sleeve and the heat-insulating sleeve are rotationally matched.

[0052] In this embodiment, the sealing step on the outer wall at the rear end of the silencer jacket seals the rear end of the slag discharge gap, constructing a reliable protective barrier, effectively preventing the residue from being ejected from the rear end of the slag discharge gap toward the user, greatly reducing the risk of injury to the user caused by the splashing of residue, significantly improving the safety of the ceiling nailer during use, and providing a safer working environment for operators. At the same time, the rotational fit between the silencer jacket and the insulation jacket provides a unique functional advantage. When residue is stuck in the slag discharge gap, the user can grind the stuck residue by rotating the silencer jacket and using the friction and extrusion force generated by the relative movement between the silencer jacket and the insulation jacket, so that the residue can be discharged smoothly, effectively avoiding the slag discharge failure caused by the residue blocking the slag discharge gap, ensuring the continuous and smooth operation of the slag discharge system, and further improving the reliability and practicality of the ceiling nailer.

[0053] Specifically, the slag discharge gap is divided into a plurality of slag discharge guide grooves 22 by a dividing step 21 on the inner wall of the thermal insulation sleeve, and a slag discharge notch 23 is provided at the front end of the thermal insulation sleeve.

[0054] In this embodiment, the slag discharge gap is divided into a number of slag discharge guide grooves by the separation steps on the inner wall of the insulation sleeve, which can divert and guide the residue, so that the distribution of the residue in the slag discharge gap is more uniform and orderly, avoiding the problem of residue accumulation in a certain place and causing poor slag discharge; the slag discharge notch at the front end of the insulation sleeve provides an outlet for the residue to be discharged, further improving the efficiency and thoroughness of the slag discharge, and ensuring the efficient and stable operation of the slag discharge system.

[0055] Among them, the separation step can be arranged not only on the inner wall of the heat insulation sleeve, but also on the silencer outer sleeve, which can also play the role of separating the slag discharge gap.

[0056] Specifically, it also includes a dust cover 24 threadedly connected to the silencer pipe 3, and the silencer outer sleeve is provided with a step 3 16 that abuts against the separation step.

[0057] In this embodiment, the dust cover threadedly connected to the silencer pipe can effectively block dust, impurities, etc. from entering the silencer chamber and the slag discharge system, reducing the slag discharge failure or reduced silencing effect caused by the entry of foreign matter from the outside, and maintaining the cleanliness and normal function of the slag discharge system and the silencing structure; step three on the silencer outer sleeve offsets the separation step and is used to fix the position of the insulation sleeve, thereby enhancing the stability of the insulation sleeve during the slag discharge process, preventing it from being displaced due to vibration or other external forces, and ensuring the normal operation of the slag discharge guide trough.

[0058] Specifically, the aperture of the slag discharge silencer hole is smaller than the aperture of the slag discharge channel, and the height of the slag discharge gap is larger than the aperture of the slag discharge silencer hole but smaller than the aperture of the slag discharge channel; the aperture of the slag discharge silencer hole is 1-2mm, the height of the slag discharge gap is 1.5-2.5mm, and the aperture of the slag discharge channel is 2-3mm.

[0059] When the nail fixer is working, the diameter of the exploded residue is generally less than 2mm, and is mostly in strip shape. Under high-pressure impact, it will be impacted through the inclined slag discharge silencer holes and cut into smaller particles. After entering the slag discharge gap, these small particles will expand due to heat or adhere to each other and become larger than 2mm. The height of the slag discharge gap is set to 1.5-2.5mm, and more specifically 2mm. The extrusion between the residue and the inner wall of the slag discharge gap can be used to slow down the direct ejection of the residue and improve safety in use.

[0060] In addition, the aperture of the slag discharge channel is set to 2-3 mm, more specifically 2.8 mm, which can ensure the smooth passage of the residue and at the same time ensure a good sound-absorbing effect.

[0061] The specific size ranges of the above-mentioned silencer slag discharge hole diameter, slag discharge gap height, and slag discharge channel diameter are optimized parameters obtained through a large number of experiments and practical verification. These dimensions can ensure effective slag discharge and silencing while achieving the best coordination between the various components, further improving the overall performance of the ceiling nailer, reducing problems such as poor slag discharge, poor silencing effect, or component wear that may arise due to unreasonable dimensions, improving the reliability and stability of the product, and providing clear and feasible technical indicators for industrial production.

[0062] Technical personnel should note that: Although the present invention has been described according to the above specific implementation methods, the concept of the present invention is not limited to this invention, and any modification using the concept of the present invention will be included in the scope of protection of this patent right.

Claims

1. A ceiling nail fixing device, comprising a nail fixing device body and a silencer connected to the nail fixing device body, wherein the silencer comprises a silencer pipe, a voltage regulating sleeve sleeved on the silencer pipe, and a silencer outer sleeve sleeved outside the voltage regulating sleeve, characterized in that: It also includes a heat insulation sleeve sleeved outside the silencer outer sleeve, a silencer chamber is formed between the silencer pipe and the silencer outer sleeve, the silencer pipe is provided with a slag discharge silencer hole connected to the silencer chamber, a slag discharge gap is left between the heat insulation sleeve and the silencer outer sleeve, and the silencer outer sleeve is provided with a slag discharge hole for connecting the slag discharge gap and the silencer chamber; The slag discharge gap is divided into a plurality of slag discharge guide grooves by separation steps on the inner wall of the thermal insulation sleeve, and the front end of the thermal insulation sleeve is provided with a slag discharge notch; A sealing step is provided on the outer wall of the rear end of the noise-reducing outer sleeve, and the sealing step is sealed with the heat-insulating sleeve.

2. The ceiling nail fixing device according to claim 1, characterized in that: The outer ring of the pressure regulating sleeve is provided with at least one step ring, the muffler chamber is divided into a plurality of independent chambers by the step ring, and a slag discharge channel is provided on the step ring.

3. The ceiling nail fixing device according to claim 1, characterized in that: The slag discharge silencer hole is inclinedly arranged, and the slag discharge silencer hole is located at the front end of the silencer chamber, and the slag discharge hole is located at the rear end of the silencer chamber.

4. The ceiling nail fixing device according to claim 1, characterized in that: A step 1 is arranged on the outer wall of the muffler pipe, and the step 1 abuts against the front end of the voltage regulating sleeve.

5. The ceiling nail fixing device according to claim 4, characterized in that: The rear end of the silencer sleeve is provided with an internal thread which is threadedly connected with the return sleeve of the nail fixing device body, and the front end of the return sleeve is pressed tightly on the step 2 on the pressure regulating sleeve.

6. The ceiling nail fixing device according to claim 1, characterized in that: The noise-absorbing outer sleeve and the heat-insulating sleeve are rotationally matched.

7. The ceiling nail fixing device according to claim 1, characterized in that: It also includes a dust cover threadedly connected to the silencer pipe, and the silencer outer sleeve is provided with a step three that abuts against the separation step.

8. The ceiling nail fixing device according to claim 2, characterized in that: The aperture of the slag discharge silencer hole is smaller than the aperture of the slag discharge channel, and the height of the slag discharge gap is larger than the aperture of the slag discharge silencer hole but smaller than the aperture of the slag discharge channel.

9. The ceiling nail fixing device according to claim 8, characterized in that: The aperture of the slag discharge silencer hole is 1-2 mm, the height of the slag discharge gap is 1.5-2.5 mm, and the aperture of the slag discharge channel is 2-3 mm.

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