Transversely sealing adjustable power axial nailer

Abstract

The utility model relates to a kind of adjustable power axial nail gun of transverse seal type, including nail pipe and silencer cover, and there is pressure relief through-hole on nail pipe wall, it is characterized by: there is transverse pin hole on nail pipe wall, transverse pin hole is through-hole, the space included angle of the axis of transverse pin hole and the axis of nail pipe is 45 degrees-135 degrees, transverse pin hole and pressure relief through-hole cross;There is enclosed pin in transverse pin hole, enclosed pin seals pressure relief through-hole;Enclosed pin can be completely taken out from any opening of the opening of the two ends of transverse pin hole.The utility model changes the 0 degree sealing mode of original plug into the transverse sealing mode of enclosed pin 90 degrees or so, greatly reduces the serious bonding phenomenon in gap, and can be easily taken out enclosed pin by knocking mode, optimizes product structure, prolongs service life, and reduces use cost.

Description

Technical Field

[0001] This utility model discloses a nail-shooting device that can be applied to integrated nail-shooting bullets (including steel-cased integrated bullets, plastic-cased integrated bullets, and caseless integrated bullets) and split nail-shooting bullets (including steel-cased split bullets, plastic-cased split bullets, and caseless split bullets), and is especially suitable for using plastic-cased integrated bullets and plastic-cased split bullets. Background Technology

[0002] With the development of nail gun technology, the various advantages of axial nail guns have made their application increasingly widespread.

[0003] When using an axial nail gun, the firing pin moves rapidly forward within the chamber, and its tip strikes the tail of the nail cartridge, causing the cartridge to explode. The resulting high-pressure gas propels the nail quickly into the front-end substrate, completing the nailing process.

[0004] Ideally, current axial nail guns use a cartridge with sufficient explosive force to drive the nail into the substrate at the predetermined depth, avoiding both insufficient penetration and substrate damage. However, in practical use, the following drawbacks often exist: the explosive force of the nail cartridges is designed for high strength to prevent penetration failure. When this force is applied to substrates with lower local strength, such as wood or plastic, it can cause damage to the substrate or the fastened device.

[0005] To address the problem of excessive power in practical applications, the inventor has applied for the following two patents:

[0006] The adjustable-power axial nail gun (CN201821698952.5) ​​cleverly incorporates several pressure relief holes on the nail tube wall without altering the original equipment's working method and effect. By using cylindrical plugs to block a certain number of these holes as needed, the explosive power of the nail cartridge can be reduced, achieving the most suitable explosive power and preventing excessive force from damaging the substrate.

[0007] The adjustable-power axial nail gun (CN201821698953.X) cleverly incorporates several pressure relief holes on the nail tube without altering the original equipment's working method and effect. Using a power adjustment sleeve, the installation position can be adjusted in the circumferential or axial direction. A certain number or area of ​​pressure relief holes can be sealed as needed, thereby reducing the explosive power of the nail cartridge and achieving the most suitable explosive power, preventing excessive force from damaging the substrate.

[0008] After the above two products were launched to the market, the following defects have emerged in actual use over the past few years:

[0009] Regarding the first type of structure: When using integrated plastic-cased bullets and separate plastic-cased bullets, the heat generated by the explosion melts the plastic fragments, causing the pin to stick to the pressure relief hole. After repeated use, the pin becomes difficult to remove, resulting in functional failure.

[0010] The second structure: Melted plastic fragments can also cause the power adjustment sleeve to stick severely to the outer wall of the nail tube, resulting in a loss of function. Summary of the Invention

[0011] The purpose of this invention is to provide a horizontally sealed adjustable axial nail gun to overcome the shortcomings of existing technology.

[0012] The technical solution adopted by this utility model to achieve its purpose is: a horizontally sealed adjustable power axial nail gun, including a nail tube and a sound-absorbing sleeve, with a pressure relief through hole on the wall of the nail tube. The nail tube wall has a transverse pin hole, which is a through hole. The spatial angle between the axis of the transverse pin hole and the axis of the nail tube is 45 degrees to 135 degrees, and the transverse pin hole and the pressure relief through hole intersect. A sealing pin is located inside the transverse pin hole, sealing the pressure relief through hole. The sealing pin can be completely removed from either end of the transverse pin hole.

[0013] The optimized design features a flat surface at one or both ends of the transverse pin hole.

[0014] The design is optimized, with multiple pressure relief holes along the circumference of the nail tube.

[0015] The design is optimized, with multiple pressure relief holes along the axial direction of the nail tube.

[0016] The optimized closing pin is a flexible cylindrical pin.

[0017] The beneficial effects of this utility model are as follows: Without changing the original working method and effect of the equipment, a transverse pin hole is cleverly designed. Compared to the pressure relief through-hole, the original 0° sealing method of the plug is changed to a transverse sealing method of approximately 90° with a sealing pin, achieving the following advantages: 1. Regarding CN201821698952.5, it avoids the direct scouring of the gap between the pressure relief through-hole and the plug by molten plastic debris after the explosion, which would otherwise lead to severe adhesion. The gap between the sealing pin and the transverse pin hole in this utility model is approximately 90° to the scouring direction, greatly reducing the adhesion area and thus the adhesion force. 2. Regarding CN201821698952.5, the original screws, after being bonded, are difficult to remove by rotation, often leading to stripping; the pins, after being bonded, are even more difficult to pull out. This utility model allows the sealing pin to be easily pushed out by directly striking one end with a sharp object, thus reducing the force of the impact. 3. Regarding CN201821698952.5, since the pin inside the pressure relief through hole has been eliminated, the clamp originally designed to prevent the pin from falling out can also be eliminated, thus optimizing the product structure and reducing costs. This utility model also overcomes the drawback of CN201821698953.X, where severe adhesion between the power adjustment sleeve and the outer wall of the nail tube prevents the power adjustment sleeve from rotating.

[0018] The present invention will be further described below through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the nail tube structure.

[0021] Figure 3 yes Figure 2 BB cross-section.

[0022] Figure 4 yes Figure 3 CC cross-section view.

[0023] Figure 5 This is a 3D schematic diagram of the nail tube.

[0024] Figure 6 This is a schematic diagram of a structure using a flexible cylindrical pin. Detailed Implementation

[0025] Example 1:

[0026] In the diagram, 1 is the nail pipe, 2 is the pressure relief through hole, 3 is the transverse pin hole, 4 is the sealing pin, 5 is the plane, 6 is the slag discharge channel, 7 is the sound-absorbing sleeve, and 8 is the thick wall.

[0027] Figure 1In the diagram, the direction indicated by the arrow is defined as the front end, the axial direction of the whole machine is the longitudinal direction, and the direction with an angle of 45 degrees to 135 degrees with the longitudinal direction is the transverse direction.

[0028] like Figure 3 As shown, the pressure relief holes 2 on the nail tube 1 open into the inner wall and outer wall of the nail tube 1 respectively, forming a pressure relief channel.

[0029] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the thick wall 8 of the nail tube 1 is machined with transverse pin holes 3, which intersect with the pressure relief through hole 2. A sealing pin 4 is inserted into the transverse pin hole 3, which can seal the pressure relief through hole 2. In this sealed state, the pressure relief through hole 2 is inactive, and the nail gun explodes inside the nail tube 1, operating at full power.

[0030] like Figure 5 As shown, in order to facilitate drilling and machining of transverse pin holes 3, a plane 5 is provided on the thick wall 8 of the nail tube 1.

[0031] When the substrate is soft, the force needs to be reduced. It's easy to remove the closing pin 4 from the transverse pin hole 3 simply by pushing a sharp object against one end of the closing pin 4; this will cause the other end of the closing pin 4 to dislodge from the transverse pin hole 3. In practical applications, this sharp object can be a nail, eliminating the need for additional tools.

[0032] After the sealing pin 4 is removed from the transverse pin hole 3, when the integrated nail gun explodes in the nail tube 1, part of the explosive force is released through the pressure relief hole 2, thus reducing the force.

[0033] like Figure 4 , Figure 5 As shown, the degree of reduction in power is determined by the area, number, and axial position of the pressure relief through-holes 2, all of which can be accurately calculated during the design phase. The reason for setting multiple pressure relief through-holes 2 circumferentially in the nail tube 1 is that multiple pressure relief through-holes 2 can provide the most reasonable pressure reduction gradient. Depending on actual needs, several sealing pins 4 can be removed to achieve the best effect. This gradient setting method is achieved by changing the sealing state of several small-diameter pressure relief through-holes 2, thus enabling small-gradient power adjustment. Compared to changing the partial sealing degree of large-diameter holes, this method is more precise. Furthermore, large-diameter holes are more prone to plastic residue adhesion to their inner walls, affecting normal use. The reason for setting multiple pressure relief through-holes 2 axially in the nail tube 1 is that the pressure relief effect is best when the pressure relief through-holes 2 are closest to the detonation point of the nail cartridge. Since different lengths of integrated nail cartridges may be used in actual use, we can selectively use the corresponding pressure relief through-holes 2 according to their length.

[0034] like Figure 4 As shown, after using integrated and separate plastic shell cartridges for a period of time, the high-temperature molten plastic debris generated by the nail gun can only directly scour the sealing pin 4 and cannot extensively penetrate into the transverse gap between the sealing pin 4 and the transverse pin hole 3, so there will be no serious adhesion. Moreover, even if there is serious adhesion, this adhesion force can be easily overcome by the impact force. The sealing method of previous products is to directly seal the pressure relief through hole 2 with a sealing material. The gap is in the same direction as the plastic debris scour, the adhesion area is large and the adhesion force is large. In addition, the lower end of the sealing material is not exposed, and only the upper end can be operated. Whether pulling or reversing the thread, it is difficult to overcome the adhesion force even with special tooling.

[0035] like Figure 5 As shown, plane 5 can extend to the axial length of the entire thick wall 8 of the nail tube 1. A slag discharge channel 6 is formed between two opposing planes 5, and the debris ejected from the pressure relief hole 2 can be discharged out of the machine from the rear end of the slag discharge channel 6. At the same time, since drilling on the arc surface is difficult, this embodiment first processes the plane 5 and then drills holes on the plane 5, which greatly reduces the processing difficulty.

[0036] like Figure 1 As shown, theoretically, the sealing pin 4 is in a free state within the transverse pin hole 3. Since the silencing sleeve 7 covers the outer circumference of the thick-walled 8, even if the sealing pin 4 slides a certain distance from the transverse pin hole 3, it will be restricted by the silencing sleeve 7. Therefore, the sealing pin 4 will never slide within the transverse pin hole 3, causing the sealing state to fail. This is because the design ensures that even if the sealing pin 4 slides to its limit position, it will still maintain a state of complete sealing of the pressure relief through hole 2. After the machine has been used for a period of time, due to adhesion, the position of the sealing pin 4 will stabilize within the transverse pin hole 3.

[0037] It is worth noting that the closing pin 4 of this utility model adopts a transverse closing method instead of a longitudinal closing method. The reasons are as follows: 1. Only by using a straight pin structure can the purpose of knocking one end and completely removing the other end be achieved. If it were set longitudinally, due to the retaining ring in front of the nail tube 1, it would not provide a position for a sharp object to move or for the closing pin 4 to fall off when it is necessary to completely remove the closing pin 4. 2. The slippage phenomenon of the straight pin structure can be limited by the existing silencing sleeve 7, which can limit the slippage of the closing pin 4 in the transverse pin hole 3 and prevent the sealing state from failing. However, if a longitudinal setting is adopted, the silencing sleeve 7 cannot play a limiting role, and a separate limiting structure must be set up, which not only increases the cost but also reduces the reliability of operation.

[0038] Example 2:

[0039] like Figure 6 As shown, 11 is an elastic cylindrical pin.

[0040] The purpose of this embodiment is to completely avoid the slippage of the closing pin 4. The elastic cylindrical pin 11 used in this embodiment is compressed around its circumference when it is inserted into the transverse pin hole 3. The friction between the outer wall of the elastic cylindrical pin 11 and the inner wall of the transverse pin hole 3 can prevent slippage.

[0041] When it is necessary to remove the elastic cylindrical pin 11, simply tap one end.

Claims

1. A horizontally sealed, adjustable-power axial nail gun, comprising a nail tube and a silencer sleeve, wherein the nail tube wall has a pressure relief hole, characterized in that: The nail tube wall has a transverse pin hole, which is a through hole. The spatial angle between the axis of the transverse pin hole and the axis of the nail tube is 45 degrees to 135 degrees. The transverse pin hole and the pressure relief through hole intersect. There is a sealing pin in the transverse pin hole, which seals the pressure relief through hole. The sealing pin can be completely removed from either end of the transverse pin hole.

2. The horizontally sealed adjustable-power axial nail gun according to claim 1, characterized in that: The opening at one or both ends of the transverse pin hole is a flat surface.

3. The horizontally sealed adjustable-power axial nail gun according to claim 1 or 2, characterized in that: There are multiple pressure relief holes along the circumference of the nail tube.

4. The horizontally sealed adjustable-power axial nail gun according to claim 1 or 2, characterized in that: There are multiple pressure relief holes along the axial direction of the nail tube.

5. The horizontally sealed adjustable-power axial nail gun according to claim 1 or 2, characterized in that: The closing pin is a flexible cylindrical pin.

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