A nail shooting mechanism and a nail gun

Abstract

The utility model belongs to fastening device technical field especially points to a kind of auxiliary nail shooting mechanism and nail gun.The nail gun includes: nail gun and auxiliary nail shooting mechanism, auxiliary nail shooting mechanism includes: installation main body, with the connecting hole part of connecting nail mouth and the installation hole part of installation threaded rivet, connecting hole part and installation hole part between being provided with guide inner cavity;Guide sleeve, movably set in guide inner cavity, inside being provided with guide channel;And reset piece.After contacting the surface of the installed object, the threaded rivet can compress the reset piece through the guide sleeve and enter the inside of the auxiliary nail shooting mechanism. When the threaded rivet is aligned with the threaded rivet installation hole of the installed object, under the action of the reset piece, the threaded rivet can be pre-pressed into the threaded rivet installation hole, and signals such as spring reaction force reduction and movement resistance increase are generated, reminding the operator that the threaded rivet has reached the designated position, thereby achieving rapid positioning, improving the nail shooting efficiency while ensuring the installation accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of fastening device technology, specifically referring to an auxiliary nail-shooting mechanism and a nail gun. Background Technology

[0002] A threaded rivet generally includes a riveting part, a riveting limiting part, and a threaded part. The riveting part is riveted into the mounting hole of the object to be installed by means of a tool. The riveting limiting part is used to limit the riveting distance of the threaded rivet. The threaded part can detachably install an object with a threaded hole, thereby facilitating the installation of the object onto the object to be installed.

[0003] Typically, a mounting sleeve is installed at the nozzle or safety device of a nail gun. One threaded end of the rivet extends into the mounting sleeve, while the riveting end protrudes. The user aligns the rivet with the mounting hole and then uses the firing pin to rivet it into place. In practice, users often cannot ensure the nail's direction is perpendicular to the surface of the object being installed, resulting in misaligned nails that do not meet installation requirements. To address this, attempts were made to fully insert the rivet into the mounting sleeve and then use the end face of the sleeve to conform to the surface of the object, thus ensuring perpendicularity. However, it was found that the rivet was difficult to quickly lock into the mounting hole, affecting assembly efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary nail-shooting mechanism and nail gun that is simple in structure and can quickly achieve the positioning of threaded rivets.

[0005] The purpose of this utility model is achieved as follows:

[0006] An auxiliary nail-shooting mechanism, installed on the nail nozzle of a nail gun, is used to assist in the installation of threaded rivets. It includes: an installation body having a connecting hole for connecting to the nail nozzle and an installation hole for installing the threaded rivet, with a guide cavity between the connecting hole and the installation hole; a guide sleeve movably disposed within the guide cavity, having a guide channel inside for positioning the threaded rivet and connecting to the nail nozzle; and a reset member for providing a force for moving the guide sleeve toward the installation hole.

[0007] The present invention is further provided that the mounting body includes a connecting seat with a connecting hole and a positioning seat with a mounting hole, the connecting seat and the positioning seat being fixedly connected to form a guide cavity.

[0008] The present invention further comprises: a guide sleeve including a first guide portion and a second guide portion, wherein the outer diameter of the second guide portion is larger than that of the first guide portion, such that the end face of the second guide portion forms a first mounting surface for mounting a reset member; the inner cavity of the connecting seat has a first inner wall adapted to the first guide portion and a second inner wall adapted to the second guide portion, such that a second mounting surface for mounting a reset member is formed between the first inner wall and the second inner wall; the reset member is located between the first mounting surface and the second mounting surface.

[0009] The present invention is further provided that the inner diameter of the mounting hole is smaller than the outer diameter of the second guide portion, and the second guide portion can be limited to the inner side of the mounting hole.

[0010] The present invention further includes a third guide portion, wherein the first guide portion, the second guide portion and the third guide portion are integrally arranged axially in sequence and a guide channel is provided through them; the third guide portion extends into the mounting hole portion and the length of the third guide portion is less than the length of the mounting hole portion; the inner diameter of the mounting hole portion is adapted to the outer diameter of the riveting limiting portion of the threaded rivet; and the inner diameter of the guide channel is adapted to the outer diameter of the threaded portion of the threaded rivet.

[0011] The present invention is further provided with a firing pin guide hole provided on the mounting body between the connecting hole and the guide cavity, for guiding the firing pin of the nail gun into the guide channel.

[0012] The present invention further includes a fixing hole on the guide sleeve, and a magnetic component for fixing a threaded rivet is installed in the fixing hole.

[0013] The present invention further includes a positioning surface formed on the end face of the mounting hole perpendicular to the direction of the nail shot; or, at least three positioning feet are provided on the outer circumferential side of the mounting hole, and a positioning part is provided on the end side of each positioning foot, and all positioning parts can form a positioning surface perpendicular to the direction of the nail shot.

[0014] The present invention is further provided with an internally threaded connecting hole and an anti-slip part on the mounting body outside the connecting hole.

[0015] A nail gun includes: a nail gun body having a nail nozzle; and an auxiliary nailing mechanism installed at the nail nozzle; the auxiliary nailing mechanism is the aforementioned auxiliary nailing mechanism.

[0016] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0017] 1. This utility model positions the threaded rivet by using an installation body and a guide sleeve. After contacting the surface of the object to be installed, the threaded rivet can compress the reset component through the guide sleeve and enter the auxiliary nail-shooting mechanism. When the threaded rivet is aligned with the threaded rivet mounting hole of the object to be installed, under the action of the reset component, the threaded rivet can be pre-pressed into the threaded rivet mounting hole, and generate signals such as reduced spring reaction force and increased movement resistance, reminding the operator that the threaded rivet has reached the designated position, thereby achieving rapid positioning and improving nail-shooting efficiency while ensuring installation accuracy.

[0018] 2. The main body of this utility model is divided into a connecting seat and a positioning seat. The separate design facilitates the installation of the guide sleeve and the reset component, making the auxiliary nail gun mechanism a structurally stable component that is easy to install on the nail gun body.

[0019] 3. This utility model has a magnetic component installed on the guide sleeve. Generally, threaded rivets are made of magnetic metal and can be attracted by magnetic force, which can ensure the installation stability of the threaded rivets, especially suitable for scenarios where rivets are driven downwards.

[0020] 4. The positioning support of this utility model can better adapt to the flat or curved shape of the object being installed, ensuring the positioning accuracy of the threaded rivet and preventing it from being driven crooked. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation structure of the auxiliary nail-shooting mechanism of this utility model.

[0022] Figure 2 This is a structural schematic diagram of the auxiliary nail-shooting mechanism of this utility model.

[0023] Figure 3 This is a cross-sectional view of the auxiliary nail-shooting mechanism of this utility model.

[0024] Figure 4 This is a cross-sectional view of the auxiliary nail-shooting mechanism for installing threaded rivets according to this utility model.

[0025] Figure 5 This is an exploded view of the auxiliary nail-shooting mechanism with threaded rivets of this utility model.

[0026] Figure 6 This is a working schematic diagram of the auxiliary nail-shooting mechanism of this utility model on a flat surface.

[0027] Figure 7 This is a working schematic diagram of the auxiliary nail-shooting mechanism of this utility model placed on an arc surface.

[0028] Figure 8 This is a schematic diagram of the working process of the auxiliary nail-shooting mechanism of this utility model, where the threaded rivet abuts against the mounting surface.

[0029] Figure 9 This is a schematic diagram of the working process of the auxiliary nail-shooting mechanism of this utility model, which carries the threaded rivet and positions it to the threaded rivet mounting hole.

[0030] The meaning of the labels in the diagram:

[0031] 1. Mounting body; 2. Guide sleeve; 3. Reset component; 4. Magnet component;

[0032] Connecting seat 11; connecting hole 111; first inner wall 112; second inner wall 113; second mounting surface 114; firing pin guide hole 115; anti-slip part 16; positioning seat 12; mounting hole 121; positioning support leg 122; positioning part 1221;

[0033] Guide channel 21; First guide section 22; Second guide section 23; First mounting surface 231; Stop surface 232; Third guide section 24;

[0034] Nail gun body 100; nail nozzle 101; firing pin 102; safety mechanism 103; nozzle 104; power switch 105;

[0035] Auxiliary nail-shooting mechanism 200;

[0036] Threaded rivet 300; Riveting part 301; Riveting limiting part 302; Threaded part 303;

[0037] 400 is the object to be installed; 401 is the threaded rivet mounting hole. Detailed Implementation

[0038] The present invention will be further described below with reference to specific embodiments:

[0039] Example 1:

[0040] like Figure 1 As shown, a nail gun includes a nail gun body 100 and an auxiliary nail-shooting mechanism 200.

[0041] The nail gun body 100 includes a nozzle 104, a nail-driving device, and a safety control device. The nozzle 104 has a nail-driving channel, and the outer end of the nail-driving channel forms a nail-driving port 101. The nail-driving device has a firing pin 102 movably disposed in the nail-driving channel and a power supply mechanism for driving the firing pin 102. The safety control device includes a power switch 105 and a safety mechanism 103 disposed on the nail gun body 100. When the safety mechanism 103 is open, pressing the power switch 105 is required to activate the power supply mechanism to complete the nail-driving action; otherwise, the power supply mechanism cannot be controlled to operate.

[0042] The auxiliary nail-shooting mechanism 200 is mounted on the nozzle or safety mechanism and is used to assist the threaded rivet 300 in riveting to the object 400, that is, to rivet the riveting part 301 of the auxiliary threaded rivet 300 into the threaded rivet mounting hole 401 of the object 400.

[0043] It should be noted that the safety mechanism 103 of a nail gun generally comes in two types:

[0044] The first type of safety mechanism is directly installed on the handle of the nail gun body 100. It mainly includes a safety switch (micro switch, etc.). The safety switch is installed on the handle near the power switch 105 and connected in series with the power switch 105 in the control circuit. The safety function is achieved by pressing different fingers, preventing accidental firing of the nail gun due to accidental activation of the power switch under abnormal working conditions, thus avoiding harm to personal safety and property. In this case, the auxiliary nail-shooting mechanism 200 is directly installed on the nail-shooting nozzle 101 of the gun mouth.

[0045] The second type of safety mechanism, installed at the nozzle 104, mainly includes a safety switch (microswitch or Hall element, etc.) connected in series with the power switch 105 in the control circuit, and a sliding sleeve assembly that can drive the safety switch to open. The sliding sleeve assembly is movably mounted on the nozzle 104. By contacting the object to be installed 400 and generating relative movement with the nail gun body 100, the safety switch is triggered to open. In this case, the auxiliary nail-shooting mechanism 200 is mounted on the sliding sleeve assembly of the safety mechanism 103.

[0046] In this embodiment, the direction of movement of the firing pin 102 is defined as the nail firing direction.

[0047] like Figure 2-4 As shown, the auxiliary nail-shooting mechanism 200 includes a mounting body 1, a guide sleeve 2, and a reset component 3.

[0048] The mounting body 1 has a connecting hole 111 for connecting to the nail gun nozzle 101 and a mounting hole 121 for mounting the threaded rivet 300. The connecting hole 111 is an internally threaded hole. Generally, the nozzle or sliding sleeve assembly has a matching externally threaded hole, and the two are threaded together. To facilitate rotational installation, an anti-slip part 16 is provided on the mounting body 1 outside the connecting hole 111. The anti-slip part 16 has circumferentially distributed concave-convex textures or polygonal sidewalls. The concave-convex textures facilitate manual installation, and the polygonal sidewalls facilitate contact with tools for fixed installation. The mounting hole 121 is a through hole. A guide cavity is provided between the connecting hole 111 and the mounting hole 121. The guide cavity connects the connecting hole 111 and the mounting hole 121, and all three are coaxially arranged. This axis is consistent with the nail firing direction of the nail gun.

[0049] For ease of installation, the mounting body 1 in this embodiment is configured as a split unit, comprising a connecting seat 11 with a connecting hole 111 and a positioning seat 12 with a mounting hole 121. The connecting seat 11 and the positioning seat 12 are fixedly connected by welding, threaded connection, snap-fit, or other structures to form a guide cavity. In this embodiment, the other end of the connecting seat 11 is provided with an external thread, and the positioning seat 12 is provided with a matching internal threaded hole. The connecting seat 11 and the positioning seat 12 are fixedly connected by a threaded structure.

[0050] The guide sleeve 2 is movably disposed in the guide cavity, and a guide channel 21 is provided inside for positioning the threaded rivet 300 and connecting the nail gun port 101. A reset member 3 is provided between the guide sleeve 2 and the connecting seat 11. The reset member 3 is preferably a spring, which is used to provide a force for the guide sleeve 2 to move toward the mounting hole.

[0051] Specifically, such as Figure 4 , 5 As shown, the guide sleeve 2 includes a first guide portion 22, a second guide portion 23, and a third guide portion 24. In this embodiment, the first guide portion 22, the second guide portion 23, and the third guide portion 24 are preferably integrally arranged axially in sequence, and a guide channel 21 is provided through them. The guide channel 21 is coaxially arranged with the guide cavity and is consistent with the direction of the nail. The outer diameter of the second guide portion 23 is larger than the outer diameters of the first guide portion 22 and the third guide portion 24, so that the end face of the second guide portion 23 facing the first guide portion 22 forms a first mounting surface 231 for mounting the reset member 3.

[0052] The inner cavity of the connecting seat 11 has a first inner wall 112 adapted to the first guide portion 22 and a second inner wall 113 adapted to the second guide portion 23. The first inner wall 112 and the second inner wall 113 form a guide cavity, and a second mounting surface 114 for mounting the reset member 3 is formed between the first inner wall 112 and the second inner wall 113. The reset member 3 is located between the first mounting surface 231 and the second mounting surface 114.

[0053] The inner diameter of the mounting hole 121 is smaller than the outer diameter of the second guide 23, so that the end face of the second guide 23 facing the third guide 24 forms a stop surface 232. Under the action of the reset member 3, the second guide 23 can be limited to the inside of the mounting hole 121.

[0054] At this time, the first guide part 22 is always in guiding engagement with the first inner wall 112, and / or the second guide part 23 is always in guiding engagement with the second inner wall 113. Through the above structure, it is ensured that the guide sleeve 2 can move axially stably within the guide cavity. In addition, the distance that the first guide part 22 moves in guiding motion within the first inner wall 112 must be sufficient to allow the threaded rivet 300 to be completely pressed out of the interior of the auxiliary nail-shooting mechanism 200, so as to ensure that the positioning seat 12 can contact the surface of the object 400 to be installed.

[0055] like Figure 4 As shown, the outer diameter of the third guide portion 24 is adapted to the inner diameter of the mounting hole portion 121, allowing it to extend into the mounting hole portion 121. Simultaneously, the length of the third guide portion 24 is less than the length of the mounting hole portion 121, creating a mounting position for the threaded rivet 300 within the mounting hole portion 121 in its natural state. In this embodiment, the inner diameter of the mounting hole portion 121 is adapted to the outer diameter of the riveting limiting portion 302 of the threaded rivet 300, and the inner diameter of the guide channel 21 is adapted to the outer diameter of the threaded portion 303 of the threaded rivet 300. When the threaded portion 303 of the threaded rivet 300 is inserted into the guide channel 21, its riveting limiting portion 302 can partially or completely enter the mounting hole portion 121. In the natural state of the reset member, the riveting portion 301 is located on the outer side.

[0056] The fitting relationship between the threaded rivet 300, the guide sleeve 2, and the mounting hole 121 reduces the movement space of the threaded rivet 300 within the guide sleeve 2, preventing the threaded rivet from becoming misaligned within the guide sleeve 2. When the threaded rivet 300 is pressed into the auxiliary nail-shooting mechanism, the riveting limiting part 302 abuts against the end of the guide sleeve 2 and pushes the guide sleeve 2 compression reset part 3 along the inner wall of the mounting hole 121, ensuring that the threaded rivet 300 can always move along the nail-shooting direction. At the same time, the guide channel 21 of the guide sleeve 2, the end face of the third guide part 24, and the inner wall of the mounting hole 121 all play a guiding and positioning role for the threaded rivet 300, ensuring that the axis of the threaded rivet 300 is consistent with the nail-shooting direction and reducing installation errors.

[0057] In order to allow the firing pin 102 to enter the guide channel 21 better, the mounting body 1 between the connecting hole 111 and the guide cavity is provided with a firing pin guide hole 115. The firing pin guide hole 115 has an open guide slope and a guide hole with the same inner diameter as the guide channel 21, which is used to guide the firing pin 102 of the nail gun into the guide channel 21.

[0058] To prevent the threaded rivet 300 from falling off after installation, a fixing hole is provided on the second guide part 23 of the guide sleeve 2. The fixing hole is a through hole, and a magnetic component 4 for fixing the threaded rivet 300 is installed in the fixing hole. The magnetic component 4 is preferably a magnet. Generally, the threaded rivet 300 is made of magnetic metal and can be attracted by magnetic force, which can ensure the installation stability of the threaded rivet 300, especially suitable for scenarios where the rivet is driven downwards.

[0059] Since the threaded rivets 300 come in different lengths, the guide channel 21 will be made longer to accommodate threaded rivets 300 with different thread lengths 303. The installation position of the magnet component 4 will be closer to the third guide part 24 to ensure that the shortest threaded rivet 300 can be attracted and fixed.

[0060] To prevent the threaded rivet 300 from being driven crooked, the end face of the mounting hole 121 forms a positioning surface perpendicular to the direction of the nail. When the positioning surface is in complete contact with the object 400 to be installed, it can ensure that the axis of the auxiliary nail-shooting mechanism 200 and the threaded rivet 300 are perpendicular to the surface of the object 400 to be installed.

[0061] Alternatively, at least three positioning feet 122 are provided circumferentially on the outer side of the mounting hole 121. Preferably, the positioning feet 122 are evenly distributed around the three circumferences. Each positioning foot 122 has a positioning part 1221 on its end side, and all positioning parts 1221 can form a positioning surface perpendicular to the direction of the nail. The three positioning feet 122 provide reliable positioning, and compared with the end face positioning of the mounting hole 121, they can increase the area of ​​the positioning surface and improve the perpendicularity accuracy with the surface of the object 400 being mounted.

[0062] In this embodiment, viewed from the axial projection plane, the positioning part 1221 slightly extends beyond the end face of the mounting hole part 121 to prevent the end face of the mounting hole part 121 from contacting the surface of the object 400 to avoid affecting the positioning effect. Figure 6 As shown, this is a schematic diagram of the auxiliary nail-shooting mechanism 200 positioned on a flat surface when the surface of the object being installed 400 is a plane; as shown... Figure 7 The diagram shows the working arrangement of the auxiliary nail-shooting mechanism 200 on the curved surface of the object 400 being installed. The positioning foot 122 in this embodiment can better adapt to the flat or curved shape of the object 400 being installed, ensuring the positioning accuracy of the threaded rivet 300 and preventing it from being driven off-center.

[0063] Working principle:

[0064] First, such as Figure 4 As shown, the threaded rivet 300 is placed into the mounting hole 121 of the auxiliary nail firing mechanism 200 and attracted by the magnet component 4. At this time, the riveting part 301 of the threaded rivet 300 is located at the outer end of the auxiliary nail firing mechanism 200.

[0065] Then, as Figure 8 As shown, the operator places the auxiliary nail-shooting mechanism 200 of the nail gun against the vicinity of the threaded rivet mounting hole 401 of the object to be installed 400. The riveting part 301 of the threaded rivet 300 first contacts the object to be installed 400. The operator presses further until the positioning surface of the auxiliary nail-shooting mechanism 200 (the positioning part 1221 of the positioning support 122 in this embodiment) fully contacts the object to be installed 400, so that the threaded rivet 300 compresses the reset member 3 through the guide sleeve 2 and enters the interior of the auxiliary nail-shooting mechanism 200.

[0066] Finally, as Figure 9As shown, the operator moves the auxiliary nail-shooting mechanism 200 of the nail gun near the threaded rivet mounting hole 401. When the threaded rivet 300 is aligned with the threaded rivet mounting hole 401, the threaded rivet 300 will partially enter the threaded rivet mounting hole 401 and produce a small displacement and sound, thus achieving pre-positioning. At this time, the operator will clearly feel the reaction force of the reset piece 3 decrease. At the same time, since the threaded rivet 300 has entered the threaded rivet mounting hole 401, moving the auxiliary nail-shooting mechanism 200 will produce a clear sense of resistance, thereby determining the installation position of the threaded rivet 300. Then, the power switch 105 is pressed, and the firing pin 102 is ejected, thus achieving nail shooting.

[0067] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An assisting nail shooting mechanism mounted on a nail shooting port (101) of a nail shooting gun for assisting installation of a threaded rivet (300), characterized in that, include: The mounting body (1) has a connecting hole (111) for connecting the nail gun port (101) and a mounting hole (121) for mounting the threaded rivet (300), and a guide cavity is provided between the connecting hole (111) and the mounting hole (121). Guide sleeve (2), movably disposed within the guide cavity, having an internal guide channel (21) for positioning the threaded rivet (300) and communicating with the nail gun nozzle (101); and The reset member (3) is used to provide a force for the guide sleeve (2) to move toward the mounting hole (121).

2. The supplemental nail shooting mechanism of claim 1, wherein: The mounting body (1) includes a connecting seat (11) containing the connecting hole portion (111) and a positioning seat (12) containing the mounting hole portion (121). The connecting seat (11) and the positioning seat (12) are fixedly connected to form the guide cavity.

3. The supplemental nail shooting mechanism of claim 2, wherein: The guide sleeve (2) includes a first guide portion (22) and a second guide portion (23). The outer diameter of the second guide portion (23) is larger than that of the first guide portion (22), such that the end face of the second guide portion (23) forms a first mounting surface (231) for mounting the reset member (3). The inner cavity of the connecting seat (11) has a first inner wall (112) adapted to the first guide portion (22) and a second inner wall (113) adapted to the second guide portion (23), such that a second mounting surface (114) for mounting the reset member (3) is formed between the first inner wall (112) and the second inner wall (113); The reset component (3) is located between the first mounting surface (231) and the second mounting surface (114).

4. The supplemental nail shooting mechanism of claim 3, wherein: The inner diameter of the mounting hole (121) is smaller than the outer diameter of the second guide (23), and the second guide (23) can be limited to the inner side of the mounting hole (121).

5. The supplemental nail shooting mechanism of claim 3, wherein: The guide sleeve (2) also includes a third guide part (24). The first guide part (22), the second guide part (23) and the third guide part (24) are axially integrated in sequence and are provided through the guide channel (21). The third guide portion (24) extends into the mounting hole portion (121), and the length of the third guide portion (24) is less than the length of the mounting hole portion (121). The inner diameter of the mounting hole portion (121) is adapted to the outer diameter of the riveting limiting portion (302) of the threaded rivet (300), and the inner diameter of the guide channel (21) is adapted to the outer diameter of the threaded portion (303) of the threaded rivet (300).

6. The supplemental nail shooting mechanism of claim 2, wherein: The mounting body (1) between the connecting hole (111) and the guide cavity is provided with a firing pin guide hole (115) for guiding the firing pin of the nail gun into the guide channel (21).

7. An assisted nail shooting mechanism according to any one of claims 1-6, characterized in that: The guide sleeve (2) has a fixing hole, and a magnet component (4) for fixing the threaded rivet (300) is installed in the fixing hole.

8. An assisted nail shooting mechanism according to any one of claims 1-6, characterized in that: The end face of the mounting hole (121) forms a positioning surface perpendicular to the direction of the nail shot; Alternatively, at least three positioning feet (122) are provided on the outer circumferential side of the mounting hole (121), and each positioning foot (122) is provided with a positioning part (1221) on its end side, and all positioning parts (1221) can form a positioning surface perpendicular to the direction of the nail.

9. An assisted nail shooting mechanism according to any one of claims 1-6, characterized in that: The connecting hole (111) is an internal threaded hole, and an anti-slip part (16) is provided on the mounting body (1) outside the connecting hole (111).

10. A nail gun, characterized by, include: The nail gun body (100) has a nail gun nozzle (101); as well as An auxiliary nail-shooting mechanism (200) is installed on the nail-shooting nozzle (101); The auxiliary nail-shooting mechanism (200) is the auxiliary nail-shooting mechanism according to any one of claims 1-9.

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