CN215037162U

CN215037162U - Nail gun

Info

Publication number: CN215037162U
Application number: CN202120152310.0U
Authority: CN
Inventors: 吉绍山; 梅杰; 李凯凯; 王志伟
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-12-07
Anticipated expiration: 2031-01-20

Abstract

The utility model relates to a nail rifle, at the nailing in-process, before the nailing, driving medium and locking piece connect and join in marriage, and locking piece is in first state promptly, and the piston keeps in the energy storage position this moment. Then, under the action of the driving mechanism, the transmission piece acts to be disengaged from the locking piece, so that the locking piece is in a second state, and the piston is released from the energy storage position at the moment. The instantaneously released energy pushes the piston to drive the firing pin to move together in the working chamber, so as to strike the fastening element (such as a nail) and eject the fastening element at a high speed, thereby completing the nailing operation. Because the stopping part is detachably arranged on the stopping piece, when the stopping part is worn, the stopping part can be replaced again by detaching the stopping part, the whole stopping piece does not need to be replaced, the problem that the whole part needs to be replaced due to the fact that the stopping part is worn is effectively solved, and the maintenance cost of parts is reduced. Meanwhile, in the maintenance process, the structure abrasion maintenance is completed by removing the stopping part, so that the maintenance efficiency of the nail gun is effectively improved.

Description

Nail gun

Technical Field

The utility model relates to a nailing equipment technical field especially relates to nail rifle.

Background

The nail gun, also called as a nail shooter, utilizes the instantaneously released air pressure energy to push the firing pins to do hammering movement, and ejects the row nails from the cartridge clip at high speed so as to complete the fixation of the object. It can be classified into an electric nail gun, a pneumatic nail gun, a manual nail gun, etc. according to the driving source.

The nailing gun mainly comprises a gun body, a firing pin, a retaining mechanism, a power source and two pistons. Locking the striker by a retaining mechanism during operation such that one of the pistons cannot slide; the other piston is then pushed by the power source so that the gas between the two pistons is compressed. When the power source pushes the piston to slide to a certain position, the holding mechanism is opened, the firing pin is unlocked, the firing pin is pushed out at a high speed under the action of high-pressure gas, and the firing pin is hammered on the chain riveting so that the chain riveting can be ejected at a high speed.

In the nailing process, the striker collides back and forth or pushes away the stop block assembly on the retaining mechanism, so that structural abrasion easily occurs on the stop block assembly. Once worn, the block assembly is generally replaced as a whole during conventional maintenance. However, this not only results in a reduction in the repair efficiency of the nail gun, but also increases the repair cost of parts.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a nail gun that reduces the cost of maintaining parts and improves the efficiency of maintaining the nail gun.

A nail gun, comprising: a drive mechanism; the gun body is internally provided with a working cavity; the piston is arranged in the working cavity, a firing pin is arranged on the piston, and the piston can be kept at an energy storage position or released from the energy storage position to move along the axis of the working cavity so as to drive the firing pin to strike a fastening element; control means for locking the piston in the charging position or releasing the piston from the charging position; the control device comprises a locking piece and a transmission piece which can be selectively matched or separated with the locking piece, wherein the locking piece is provided with a blocking piece which can prevent the piston from moving, the blocking piece is provided with a blocking part which can be detached and can rotate relative to the blocking piece, the blocking part is in interference fit with at least one structure on the piston, the blocking piece has a first state and a second state, when the blocking piece is in the first state, the transmission piece is matched with the locking piece to prevent the piston from moving, and when the blocking piece is in the second state, the transmission piece is separated from the locking piece to allow the piston to move.

In the nail gun, before nailing, the transmission piece is matched and connected with the locking piece, namely, the locking piece is in a first state, and the piston is kept at the energy storage position. Then, under the action of the driving mechanism, the transmission piece acts to be disengaged from the locking piece, so that the locking piece is in a second state, and the piston is released from the energy storage position at the moment. The instantaneously released energy pushes the piston to drive the firing pin to move together in the working chamber, so as to strike the fastening element (such as a nail) and eject the fastening element at a high speed, thereby completing the nailing operation. Because the stopping part can be detached and can be rotatably arranged on the stopping part relative to the stopping part, the stopping part is not concentrated on one point due to rolling friction, and when the stopping part is worn, the stopping part can be replaced again by detaching the stopping part without replacing the whole stopping part, so that the problem that the whole part needs to be replaced due to the fact that the stopping part is worn is effectively solved, and the maintenance cost of parts is reduced. Meanwhile, in the maintenance process, the structure abrasion maintenance is completed by removing the stopping part, so that the maintenance efficiency of the nail gun is effectively improved.

In one embodiment, the blocking piece is provided with a mounting hole, the blocking portion penetrates into the mounting hole, the blocking portion is provided with a clamping piece, and the clamping piece is in interference fit with the blocking piece.

In one embodiment, the blocking member further has an opening communicating with the mounting hole, the blocking portion passes through the mounting hole and extends into the opening, and the piston has at least one structure extending into the opening and in interference fit with the blocking portion.

In one embodiment, the opening is clamped into one side of the striker, an interference notch is arranged on the striker, and the inner wall of the interference notch is in interference fit with the stopping part.

In one embodiment, the blocking piece is provided with a limiting protrusion, and the limiting protrusion is matched with the inner wall of the gun body and used for limiting the stopping part to stay to a position where the stopping part can be in interference fit with the interference notch.

In one embodiment, the blocking member is provided with a first fixing hole, and the locking member is provided with a second fixing hole opposite to the first fixing hole.

In one embodiment, a first concave portion is arranged on one side surface of the blocking member facing the first mating portion, the blocking portion penetrates through the blocking member, and one end of the blocking portion is located in the first concave portion.

In one embodiment, a guide surface is provided on one side of the blocking member, and the guide surface is arched in an arc shape in the direction toward the striker.

In one embodiment, the working chamber comprises a first working chamber and a second working chamber which are communicated, the piston comprises a first piston arranged in the first working chamber and a second piston arranged in the second working chamber, the striker is arranged on the first piston, the first piston can be kept at an energy storage position or released from the energy storage position to move along the axis of the first working chamber so as to drive the striker to strike a fastening element, and the second piston is in driving connection with the driving mechanism.

In one embodiment, the locking member is provided with a first mating portion, the transmission member is selectively mated with or unmated from the first mating portion, and when the transmission member is driven by the driving mechanism, the first mating portion is unmated from the transmission member.

In one embodiment, the locking member and the transmission member are both rotatably mounted in the gun body, the transmission member is provided with a second mating portion and an unlocking portion, the second mating portion is selectively mated with or unmated from the first mating portion, and the driving mechanism drives the unlocking portion to move.

In one embodiment, the locking part and the transmission part are rotatably mounted in the gun body, and the unlocking part and the second matching part are respectively located on two opposite sides of a rotation fulcrum of the transmission part.

In one embodiment, the transmission member is provided with a first resetting member, and the first resetting member is used for biasing the transmission member to keep the transmission member in a matching state with the first matching part.

In one embodiment, a transmission device is arranged between the output shaft of the driving mechanism and the transmission piece, and the driving mechanism drives the transmission piece to move through the transmission device.

In one embodiment, the transmission device comprises a crank connected with the output shaft of the driving mechanism, and a transmission pin connected with the crank, wherein the transmission pin drives the transmission piece to move under the action of the driving mechanism.

In one embodiment, the nail gun comprises a guide mechanism and a nail feeder, the guide mechanism is mounted on the gun body, a nail groove is formed in the guide mechanism, the firing pin can extend into the nail groove, the nail feeder is mounted on the guide mechanism, and the nail feeder is used for providing chain riveting for the nail groove.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of 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 to obtain other drawings without creative efforts.

FIG. 1 is a schematic illustration of a nail gun configuration according to one embodiment;

FIG. 2 is a cross-sectional view of a nail gun configuration according to one embodiment;

FIG. 3 is a first schematic structural diagram of a control device in a locked state according to an embodiment;

FIG. 4 is a second schematic structural diagram of the control device in the locked state according to an embodiment;

FIG. 5 is a first diagram illustrating a first exemplary embodiment of a barrier structure;

FIG. 6 is a diagram illustrating a second exemplary blocking member structure;

FIG. 7 is a third diagram illustrating a barrier structure according to an embodiment;

FIG. 8 is a schematic view of an embodiment of the engagement between the striker and the carrier rod;

FIG. 9 is a first schematic structural diagram of a control device with three-bar linkage according to an embodiment;

FIG. 10 is a schematic structural diagram of a control device with three-bar linkage transmission according to an embodiment.

100. A nail gun; 110. a gun body; 111. a working chamber; 1111. a first working chamber; 1112. a second working chamber; 120. a control device; 121. a piston; 1211. a first piston; 1212. a second piston; 122. a striker; 1221. a pivot; 1222. a top rod; 1223. a contact notch; 123. a locking member; 1231. a blocking portion; 12311. a retainer ring; 1232. a first mating portion; 1233. a second reset member; 12331. a second torsion spring; 1234. an intermediate portion; 124. a transmission member; 1241. a second mating portion; 1242. an unlocking portion; 1243. rotating a fulcrum; 1244. a first reset member; 12441. a first torsion spring; 1245. a rotating shaft; 1246. a holding groove; 127. a swing rod; 128. a connecting rod; 129. a blocking member; 1291. mounting holes; 1292. an opening; 1293. a first fixing hole; 1294. a first recess; 1295. a second recess; 1296. a guide surface; 1297. a limiting bulge; 1298. a fixing member; 130. a drive mechanism; 131. a drive pin; 132. a crank; 133. a transmission device; 134. a swing rod; 135. a connecting rod; 140. a guide mechanism; 141. a nail groove; 142. a guide groove; 150. a nail feeder.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, referring to fig. 1 to 4, a nail gun 100, the nail gun 100 includes: a driving mechanism 130, a gun body 110, a piston 121 and a control device 120. A working chamber 111 is provided in the gun body 110. A piston 121 is disposed within the working chamber 111, and a striker 122 is disposed on the piston 121, the piston 121 being capable of being held in a stored position or released from the stored position for movement along the axis of the working chamber 111 to drive the striker 122 to strike the fastening element. The control device 120 is used to lock the piston 121 in the charging position or to release the piston 121 from the charging position. The control device 120 includes a locking member 123 and a transmission member 124 selectively coupled to or decoupled from the locking member 123. The locking member 123 is provided with a stopper 129 capable of stopping the movement of the piston 121. The blocking member 129 is provided with a detachable blocking portion 1231, the blocking portion 1231 is rotatable relative to the blocking member 129, and the blocking portion 1231 is in interference fit with at least one structure of the piston 121. The blocking member 129 has a first state in which the transmission member 124 is coupled to the locking member 123 to prevent movement of the piston 121 and a second state in which the blocking member 129 is disengaged from the locking member 123 to allow movement of the piston 121.

In the nail gun 100, before the nail gun strikes, the driving member 124 is coupled to the locking member 123, that is, the locking member 123 is in the first state, and the piston 121 is kept in the energy storage position. Then, under the action of the driving mechanism 130, the transmission member 124 is operated to disengage from the locking member 123, so that the locking member 123 is in the second state, and the piston 121 is released from the energy storage position. The instantaneously released energy pushes the piston 121 to drive the striker 122 to move together in the working chamber 111, so as to strike the fastening element (e.g. nail) and eject it at high speed, thereby completing the nailing operation. Since the blocking part 1231 is detachable and can be rotatably installed on the blocking part 129 relative to the blocking part, the blocking part is subjected to rolling friction, the friction force is not concentrated at one point, and when the blocking part 1231 is worn, the blocking part 1231 can be replaced again by detaching the blocking part 1231 without replacing the whole blocking part 129, so that the problem that the whole part needs to be replaced due to the fact that the blocking part 1231 is worn is effectively solved, and the maintenance cost of parts is reduced. Meanwhile, in the maintenance process, the structural wear maintenance is completed by removing the blocking part 1231, so that the maintenance efficiency of the nail gun 100 is effectively improved.

It should be noted that the interference fit of the at least one structure on the piston 121 with the stop 1231 is understood as: the piston 121 is provided with at least a striker 122 structure. When the piston 121 is provided with only the striker 122, the stopping portion 1231 abuts against the striker 122, please refer to fig. 3 and 4; when other structures (such as the rod 1222) are provided on the piston 121, the blocking portion 1231 abuts against the striker 122 or the rod 1222. Meanwhile, there are various ways to move the transmission member 124 in the gun body 110, and it is only necessary to ensure that when the transmission member 124 is opened, at least one structure on the piston 121 can push the stopping portion 1231 open. Such as: the transmission member 124 is rotatably mounted in the gun body 110; alternatively, the transmission member 124 is slidably mounted within the gun body 110, etc. There are various ways of locating the transmission member 124 within the gun body 110, such as: the transmission 124 is indirectly driven by the motor; alternatively, the transmission member 124 is directly connected to the rotation shaft 1245 of the driving mechanism 130, and the like. When the transmission member 124 is slidably installed in the gun body 110, the transmission member 124 can be installed by matching the sliding block with the guide rail structure. The driver 124 is now slid away from the striker 122 by at least one structure on the piston 121. Similarly, the movement of the transmission member 124 within the gun body 110 can be varied, for example: the transmission member 124 is rotatably mounted in the gun body 110; alternatively, the transmission member 124 is slidably mounted within the gun body 110, etc. When the transmission member 124 is slidably mounted in the gun body 110, the transmission member 124 can be mounted by the sliding block and the guide rail structure, and at this time, the transmission member 124 can be slid away by a structure on the piston 121.

It should be noted that the number of the pistons 121 in this embodiment may be one, or may be two or more. When the piston 121 is one, the nail gun 100 is a single cylinder nailing apparatus. When the pistons 121 are two, the nail gun 100 is a dual cylinder nailing device, such as: referring to fig. 2 and 4, working chamber 111 includes a first working chamber 1111 and a second working chamber 1112 in communication. The piston 121 includes a first piston 1211 disposed within the first working chamber 1111 and a second piston 1212 disposed within the second working chamber 1112. The striker 122 is provided on the first piston 1211. The first piston 1211 can be held in the charging position or released from the charging position for movement along the axis of the working chamber 111 to drive the striker 122 to strike the fastening element.

Alternatively, the drive mechanism 130 may be driven by an electric energy storage, such as a dc motor or an ac motor; and the device can also be used as driving equipment for cylinder energy storage, chemical energy storage and the like. Wherein, when the driving mechanism 130 is an electric motor, the nail gun 100 is an electric nail gun 100; when the drive mechanism 130 is pneumatically driven, the nailer 100 is a pneumatic nailer 100.

Alternatively, the stop 1231 may be mounted to the stop 129 by a bolt, snap, interference fit, pin, or other removable connection.

Further, referring to fig. 5 and fig. 6, the blocking member 129 is provided with a mounting hole 1291. The blocking portion 1231 penetrates into the mounting hole 1291, the blocking portion 1231 is provided with a clamping member, in this embodiment, the blocking portion 12311 may also be provided with a clamping structure such as a nut or a steel wire, and the blocking portion 12311 is in interference fit with the blocking member 129. Therefore, the blocking portions 1231 penetrate the blocking portions 1231 into the mounting holes 1291 during the assembling process; the reuse collar 12311 is in interference fit with the blocking member 129, so that the blocking portion 1231 is stabilized in the mounting hole 1291, and the blocking portion 1231 is prevented from slipping out of the mounting hole 1291. When the stopping portion 1231 is worn, the retainer ring 12311 may be removed first; the blocking portions 1231 are pulled out of the mounting holes 1291 to complete the replacement of the new blocking portions 1231.

Note that, in this embodiment, the shape and material of the blocking portion 1231 are not particularly limited, and only a structure in which the blocking portion 1231 can abut against the first piston 1211 is required. Such as: the blocking portions 1231 are block-shaped, rod-shaped, plate-shaped, and the like. Meanwhile, the blocking portion 1231 may be made of a metal material such as stainless steel, copper alloy, titanium alloy, or the like; and can also be plastic or wood with certain strength. In addition, there are various dimensional relationships between the blocking portions 1231 and the mounting holes 1291, such as: the outer diameter of the blocking portion 1231 is smaller than the hole diameter of the mounting hole 1291; alternatively, the outer diameter of the blocking portion 1231 is approximately equal to the diameter of the mounting hole 1291, and the blocking portion 1231 is in clearance fit with the mounting hole 1291.

Specifically, referring to fig. 5, the blocking portion 1231 is a steel sleeve.

Further, referring to fig. 5, the blocking member 129 is further provided with an opening 1292 communicating with the mounting hole 1291. The blocking portion 1231 passes through the mounting hole 1291 and extends into the opening 1292. At least one feature on the piston 121 extends into the opening 1292 and is in interference fit with the stop 1231. In this manner, the location of the action between a structure on the piston 121 and the stop 1231 is located in the opening 1292, which can utilize the inner wall of the opening 1292 to limit the offset range of a structure on the piston 121, so that the interference relationship between the piston 121 and the stop 1231 is kept relatively stable, which is beneficial to improving the striking stability of the nail gun 100.

In one embodiment, referring to fig. 4 and 5, the opening 1292 is snapped into one side of the striker 122. An interference notch 1223 is formed in the striker 122, and an inner wall of the interference notch 1223 is in interference fit with the blocking portion 1231. Therefore, the blocking portion 1231 of the present embodiment is in interference fit with the striker 122 of the piston 121. When the blocking member 129 is in the first state, the blocking portion 1231 is in interference engagement with the striker 122, so that the piston 121 is in the holding state. Meanwhile, in the collision process, the collision notch 1223 is formed in the striker 122 in advance, so that the stopping portion 1231 collides with the inner wall of the collision notch 1223, and the acting force between the striker 122 and the stopping portion 1231 is ensured to be more stable. When the blocking member 129 is in the second state, the locking member 123 loses the locking effect of the transmission member 124, and is in the active state, in which the blocking portion 1231 is pushed open by the striker 122. In addition, since the opening 1292 is located on the side of the striker 122, when the striker 122 performs a striking operation and pushes the blocking portion 1231 open, the side of the striker 122 is limited by the upper and lower inner walls of the opening 1292, so as to reduce the vibration of the striker 122 during the striking operation, and to make the striking operation of the striker 122 more stable.

In other embodiments, the striker 122 may also include a protrusion that interferingly engages with the stop 1231.

Further, referring to fig. 5, the blocking member 129 is provided with a limiting protrusion 1297. The limiting protrusion 1297 is matched with the inner wall of the gun body 110 to limit the stopping part 1231 to stay at a position where the stopping part 1231 can be in interference fit with the interference notch 1223, so that the stopping part 1231 can accurately return to the initial position through the limiting protrusion 1297, and the difference of the striking force of the nail gun 100 is reduced.

In another embodiment, referring to fig. 8, a rod 1222 is disposed on the piston 121. The ejector 1222 is in interference fit with the blocking portion 1231, so that the blocking portion 1231 is in interference fit with the ejector 1222, the blocking portion 1231 is prevented from directly acting on the striker 122, the influence on the structural strength of the striker 122 is effectively reduced or avoided, and the stable operation of the nail gun 100 is ensured. Meanwhile, in the energy storage process, the compression force applied to the piston 121 is transmitted between the push rod 1222 and the locking member 123, and is not transmitted to the striker 122, so that the striker 122 is effectively prevented from being deformed due to the compression force applied to the piston 121, and the structure of the striker 122 is kept stable.

In one embodiment, referring to fig. 5, the blocking member 129 is provided with a first fixing hole 1293. The locking member 123 is provided with a second fixing hole opposite to the first fixing hole 1293, so that the fixing member 1298 is inserted into the first fixing hole 1293 and the second fixing hole, respectively, during the assembly process, so that the blocking member 129 is stably mounted on the locking member 123.

Alternatively, the fasteners 1298 may be bolts, screws, bolts, pins, rivets, or other fastening components, among others.

Further, referring to fig. 5, the blocking member 129 is further provided with a second recess 1295. The first fixing hole 1293 is disposed on the inner wall of the second recess 1295, so that when the fixing element 1298 penetrates into the first fixing hole 1293, the height of the fixing element 1298 protruding out of the surface of the blocking element 129 can be effectively reduced, and the fixing element 1298 is prevented from protruding too far to interfere with the structure inside the gun body 110.

In one embodiment, referring to fig. 7, a first recess 1294 is formed on a side of the blocking member 129 facing the first mating portion 1232. The blocking portion 1231 is disposed through the blocking member 129, and one end of the blocking portion 1231 is located in the first recess 1294, so that the first recess 1294 reduces the local height on the surface of the blocking member 129, so that the end of the blocking portion 1231 located in the first recess 1294 is lower than the height of the peripheral surface of the blocking member 129, thereby preventing the interference of the structure in the gun body 110 caused by the protruding end of the blocking portion 1231.

In one embodiment, referring to fig. 1 and 5, a guide surface 1296 is disposed on one side of the blocking member 129. The guide surface 1296 is curved in a direction toward the firing pin 122, i.e., the guide surface 1296 is curved, which facilitates the rotation of the blocking member 129 within the gun body 110.

In one embodiment, working chamber 111 includes a first working chamber 1111 and a second working chamber 1112 in communication. The piston 121 includes a first piston 1211 disposed in the first working chamber 1111 and a second piston 1212 disposed in the second working chamber 1112. The striker 122 is provided on the first piston 1211. The first piston 1211 can be held in the stored energy position or released from the stored energy position for movement along the first working chamber 1111 axis to drive the striker 122 to strike the fastener elements. The second piston 1212 is drivingly connected to the drive mechanism 130. Thus, during a nailing process, the driving mechanism 130 is actuated to slide the second piston 1212 from the second position to the first position within the second working chamber 1112. Due to the coupling between the transmission member 124 and the locking member 123, the first piston 1211 is kept in a stationary state by the stopping portion 1231, so that the gas between the first piston 1211 and the second piston 1212 is compressed and is in an energy storage state. When the second piston 1212 moves to the first position or close to the first position, the driving mechanism 130 drives the transmission member 124 to move through the transmission device 133, so as to control the coupling between the transmission member 124 and the locking member 123 to be disengaged, thereby allowing the locking member 123 to have a pivoting space, so that the locking member 123 is in a movable state. When the support of the locking member 123 is lost, the pneumatic energy between the first piston 1211 and the second piston 1212 is instantaneously released, so as to push the first piston 1211 to drive the striker 122 to move together in the first working chamber 1111, so that the fastening elements (e.g., nails) are ejected at a high speed to complete the nailing operation.

It should be noted that the second piston 1212 has a first position and a second position in the second working chamber 1112, and the second position is located closer to the driving mechanism 130 than the first position or is located farther away from a position where the first working chamber 1111 communicates with the second working chamber 1112. When the driving mechanism 130 drives the second piston 1212 to move, the second piston 1212 slides from the second position to the first position. The first position is understood to mean that when the second piston 1212 moves to the first position or the first position, the transmission member 124 and the locking member 123 start to be disengaged.

Further, referring to fig. 8, the striker 122 is movably disposed on the first piston 1211 through a pivot 1221. The striker 122 swings about the axis of the pivot 1221, and the striker 122 moves in the direction of the axis of the pivot 1221. It can be seen that the movement of the striker 122 relative to the first piston 1211 is a compound movement in this embodiment, such that the structure of the striker 122 on the first piston 1211 remains active. In addition, the striker 122 is movably mounted on the first piston 1211, which is also advantageous for facilitating the assembly of the striker 122 on the first piston 1211 and improving the assembly efficiency of the nail gun 100.

Further, referring to fig. 8, the swinging angle of the striker 122 is-2 ° to-2 °, so that the striker 122 keeps a floating state on the first piston 1211 and prevents unstable striking motion due to excessive swinging on the first piston 1211 by reasonably controlling the swinging angle of the striker 122 on the first piston 1211.

In one embodiment, referring to FIG. 8, the movement displacement of the striker 122 is 0.01mm to 0.11 mm. It is also reasonable to control the displacement of the striker 122 on the first piston 1211 so that the striker 122 maintains a floating state on the first piston 1211 and prevents the striker 122 from moving too much on the first piston 1211 to cause unstable striking.

In one embodiment, referring to fig. 3 and 4, the locking member 123 is provided with a first mating portion 1232. The transmission member 124 can be selectively coupled to or decoupled from the first coupling portion 1232, and when the transmission member 124 is driven by the driving mechanism 130, the first coupling portion 1232 is decoupled from the transmission member 124. During the nailing process, the driving mechanism 130 drives the transmission member 124 to move, so as to control the first mating portion 1232 to be disengaged from the transmission member 124, and at this time, the blocking portion 1231 is switched from the first state to the second state. The air pressure energy on the piston 121 is released instantaneously when the support of the blocking portion 1231 is lost, and the piston 121 is pushed to drive the striker 122 to move together in the working chamber 111, so that the strip nails are ejected at high speed to complete the nailing operation.

Further, the locking member 123 and the transmission member 124 are rotatably mounted in the gun body 110. The driving member 124 is provided with a second mating portion 1241 and an unlocking portion 1242. The second mating portion 1241 can be selectively mated with or unmated from the first mating portion 1232, and the driving mechanism 130 drives the unlocking portion 1242 to move. Thus, during the unlocking process, the driving mechanism 130 drives the unlocking portion 1242 to move, so that the transmission member 124 rotates in the gun body 110, and the second mating portion 1241 is ensured to be disengaged from the first mating portion 1232.

It should be noted that the unmating of the first mating portion 1232 and the second mating portion 1241 can be understood as follows: complete disengagement or start of gradual disengagement, that is: when the unlocking part 1242 is actuated, there are two relationships between the first fitting part 1232 and the second fitting part 1241: first, when the unlocking portion 1242 is actuated, the first mating portion 1232 and the second mating portion 1241 are immediately and completely disengaged, for example: the unlocking portion 1242 is of a switch structure, and at this time, the driving mechanism 130 drives the unlocking portion 1242 to be electrically disconnected, so that the magnetic attraction between the first mating portion 1232 and the second mating portion 1241 completely disappears; of course, the engaging portion between the first fitting portion 1232 and the second fitting portion 1241 may be designed to be shallow so as to be easily disengaged. Secondly, when the unlocking portion 1242 is actuated, the first mating portion 1232 and the second mating portion 1241 start to be gradually disengaged, but are not completely disengaged, and still maintain a partially locked state, and as the driving mechanism 130 continues to be driven, the locking between the first mating portion 1232 and the second mating portion 1241 is completely disengaged, for example: the engagement between the first fitting portion 1232 and the second fitting portion 1241 is designed to be deep, and the like.

Optionally, the first mating portion 1232 has a slot or hole structure, and the second mating portion 1241 has a convex structure; alternatively, the first mating portion 1232 has a convex structure, and the second mating portion 1241 has a slot or hole structure; alternatively, the first coupling portion 1232 is of a magnetic conductive or magnetic structure, and the second coupling portion 1241 is of an electromagnet structure. In addition, the first fitting portion 1232 and the blocking portion 1231 are spaced apart in the height direction of the locking member 123; the first fitting portion 1232 and the blocking portion 1231 may be located at the same height of the locking member 123.

Specifically, referring to fig. 4, the first mating portion 1232 is a hook. The second mating portion 1241 is a card slot. The hook is engaged with the slot.

It should be further noted that the manner in which the blocking portion 1231 blocks the movement of the piston 121 may be: a push rod 1222 and other structures are arranged on the piston 121, and the push rod 1222 is in interference fit with the stopping part 1231; referring to fig. 3, the blocking portion 1231 directly interacts with the striker 122 on the piston 121, for example, the striker 122 is provided with a bump or a groove.

Furthermore, the locking element 123 and the transmission element 124 are rotatably mounted in the gun body 110, and the unlocking portion 1242 and the second mating portion 1241 are respectively located at two opposite sides of the rotation fulcrum 1243 of the transmission element 124. Referring to fig. 3, for example, when the stopping portion 1231 is abutted against the top rod 1222, when the unlocking portion 1242 is triggered to start to operate, the unlocking portion 1242 and the second mating portion 1241 on both sides respectively start to rotate around the rotation fulcrum 1243, so that the first mating portion 1232 is disengaged from the second mating portion 1241. When the first mating portion 1232 and the second mating portion 1241 are gradually disengaged, the second mating portion 1241 continues to rotate around the rotation fulcrum 1243 as the driving of the driving mechanism 130 continues, and at this time, the blocking portion 1231 is gradually rotated and pushed open by the push rod 1222 as the first mating portion 1232 and the second mating portion 1241 are gradually disengaged. When the first and

second coupling portions

1232 and 1241 are completely disengaged from each other, the blocking portion 1231 is completely pushed open by the push rod 1222 due to the locking member 123 losing its locking force. The striker 122 is now in the striking position and is momentarily struck by the high pressure gas, causing the fastener elements to be ejected at high velocity.

It should be noted that, the driving pin 131 contacts the unlocking portion 1242 to control the first mating portion 1232 to gradually disengage from the second mating portion 1241, which can be implemented as follows: the engagement between the first and

second mating portions

1232, 1241 is deep, such as: the first mating portion 1232 is a hook, the second mating portion 1241 is a slot, and the hook is completely engaged with the slot during the locking process. This allows the blocking portion 1231 to have a movement space before the blocking portion 1231 is completely pushed open, i.e., the blocking portion 1231 has a certain rotation space before the striker 122 is instantaneously released.

Specifically, referring to fig. 4, the second mating portion 1241, the transmission member 124 and the unlocking portion 1242 are integrated, that is, the unlocking portion 1242 is an end of the transmission member 124 away from the second mating portion 1241. Thus, the first mating portion 1232, the transmission member 124 and the unlocking portion 1242 are designed as an integral structure, which not only simplifies the manufacturing process of the transmission member 124, but also simplifies the structure of the transmission member 124, reduces the occupied space of the transmission member 124 in the gun body 110, and facilitates the distribution of the internal structure of the nail gun 100.

Of course, in other embodiments, the unlocking portion 1242 can be mounted on the driving member 124 by bolts, screws, pins, welding or clipping.

In one embodiment, referring to fig. 3, a first reset component 1244 is disposed on the transmission component 124. The first restoring member 1244 is used to bias the transmission member 124 to maintain the coupled state with the first coupling portion 1232. Therefore, when the stopping portion 1231 abuts against at least one structure (such as the striker 122, the rod 1222, etc.) of the piston 121 again, the transmission member 124 is restored to the initial state by the first restoring member 1244, so that the first mating portion 1232 and the second mating portion 1241 are contacted again, and the locking member 123 and the transmission member 124 are in the mating state.

Alternatively, the first restoring member 1244 may be a spring, a torsion spring, elastic rubber, an elastic metal sheet, or the like.

Further, referring to fig. 3, the first restoring member 1244 is a first torsion spring 12441. A rotating shaft 1245 is provided on the rotating fulcrum 1243 of the transmission member 124. The transmission member 124 is rotatably disposed in the gun body 110 via a rotating shaft 1245. The first torsion spring 12441 is disposed on the rotation shaft 1245, and one end of the first torsion spring 12441 is connected to the transmission member 124. The other end of the first torsion spring 12441 is connected within the gun body 110. Thus, when the piston 121 is pushed back, the transmission member 124 is rotated in the gun body 110 by the first torsion spring 12441 through the rotation shaft 1245, so that the second fitting portion 1241 and the first fitting portion 1232 are locked again for use in a subsequent nailing operation.

In one embodiment, referring to fig. 3, a retaining groove 1246 is disposed on a side of the transmission member 124 opposite to the second mating portion 1241. When the locking member 123 is in the first state, the driving pin 131 rotates or moves into the retaining groove 1246 to control the first coupling portion 1232 and the second coupling portion 1241 to maintain the coupled state. In this way, when the piston 121 is pushed back by the driving mechanism 130, the driving pin 131 rotates or moves into the retaining groove 1246 under the action of the driving mechanism 130, so that the driving pin 131 can apply a force to the driving member 124 in the direction of the second mating portion 1241, and the coupling between the second mating portion 1241 and the first mating portion 1232 is more stable, thereby facilitating the lifting of the locking force between the driving member 124 and the locking member 123.

In one embodiment, referring to fig. 3, the striker 122 is provided with an interference notch 1223, and an inner wall of the interference notch 1223 is in interference fit with the stopping portion 1231. It can be seen that when the locking member 123 is in the first state, the blocking portion 1231 is in interference engagement with the striker 122, so that the striker 122 is in the retaining state, and the piston 121 is in the energy storage state. Meanwhile, in the collision process, the collision notch 1223 is formed in the striker 122 in advance, so that the stopping portion 1231 collides with the inner wall of the collision notch 1223, and the acting force between the striker 122 and the stopping portion 1231 is ensured to be more stable.

In one embodiment, referring to fig. 3, the locking element 123 is provided with a second resetting element 1233. The second reset member 1233 is adapted to bias the locking member 123 to maintain the blocking member 129 in the first state. When the striker 122 completes one stroke, the piston 121 is pushed back to the initial position by the driving mechanism 130. At this time, the stopping portion 1231 is disengaged from the at least one structure on the piston 121 (e.g., the interference notch 1223 on the striker 122), and the locking member 123 starts to rotate under the action of the second returning member 1233, so that the stopping portion 1231 interferes with the at least one structure on the piston 121 again. When the blocking portion 1231 recoils against the striker 122, the transmission member 124 is rotated to recouple the second mating portion 1241 from the first mating portion 1232 to complete the retainment of the striker 122. The rotation of the transmission member 124 can be accomplished by the driving mechanism 130, and can also be accomplished by other resetting structures.

Alternatively, the second restoring member 1233 may be a spring, a torsion spring, elastic rubber, an elastic metal sheet, or the like.

Specifically, referring to fig. 3, the second returning element 1233 is a second torsion spring 12331. The second torsion spring 12331 is disposed on the locking member 123, one end of the second torsion spring 12331 is connected to the blocking portion 1231 or the first mating portion 1232, and the other end of the second torsion spring 12331 is connected to the inside of the gun body 110.

In one embodiment, referring to fig. 3, a transmission device 133 is disposed between the output shaft of the driving mechanism 130 and the transmission member 124. The driving mechanism 130 drives the unlocking portion 1242 to move through the transmission 133. The transmission device 133 may have various structures, and only needs to transmit the power of the driving mechanism 130 to the unlocking portion 1242, so that the unlocking portion 1242 performs corresponding actions.

Further, referring to fig. 4, the transmission device 133 includes a crank 132 connected to the output shaft of the driving mechanism 130, and a transmission pin 131 connected to the crank 132. The driving pin 131 drives the unlocking part 1242 to move under the action of the driving mechanism 130. Therefore, in the process of driving the first mating portion 1232 to be separated from the second mating portion 1241, the unlocking portion 1242 of the driving member 124 is directly acted on by the driving pin 131 in the embodiment, so that the driving member 124 directly acts, thereby effectively simplifying the driving components, reducing the influence of the accumulated tolerance on the driving efficiency, improving the reliability of the driving structure, and reducing the difference in the nailing capability of the whole machine.

In another embodiment, referring to fig. 9 and 10, the transmission device 133 further includes a swing link 134 and a connecting rod 135. The swing link 134 is rotatably installed in the gun body 110, one end of the connecting rod 128 is rotatably connected to the swing link 127, the other end of the connecting rod 128 is rotatably connected to the unlocking portion 1242, and during the unlocking process, the driving pin 131 acts on one end of the swing link 127 to realize the disengagement and coupling of the first coupling portion 1232 and the second coupling portion 1241.

In one embodiment, referring to fig. 1, the nail gun 100 includes a guide mechanism 140 and a nail feeder 150. The guide mechanism 140 is installed on the gun body 110, and a nail groove 141 is formed in the guide mechanism 140. The striker 122 can extend into the nail groove 141. The nail feeder 150 is installed on the guide mechanism 140, and the nail feeder 150 is used for supplying the strip nails into the nail groove 141. In this manner, a stable strip of staples is provided for the staple magazine 141 by the staple feeder 150. Meanwhile, the striking of the firing pin 122 is more stable through the guide mechanism 140, which is beneficial to ensuring the consistency of the nailing force of the whole machine.

Further, the lock member 123 and the plunger 1222 are located on opposite sides of the striker 122, respectively. The blocking portion 1231 is disposed across the striker 122, so that the position of the action between the ejector 1222 and the blocking portion 1231 is separated from the position of the locking member 123, so that the nail gun 100 is reasonable in structure distribution, and avoids the interference caused by too concentrated structure distribution.

In other embodiments, the lock 123 is located on the same side of the striker 122 as the ram 1222.

Alternatively, the ejector 1222 and the striker 122 may be disposed in parallel or intersecting relation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A nail gun, comprising:

a drive mechanism;

the gun body is internally provided with a working cavity;

the piston is arranged in the working cavity, a firing pin is arranged on the piston, and the piston can be kept at an energy storage position or released from the energy storage position to move along the axis of the working cavity so as to drive the firing pin to strike a fastening element;

control means for locking the piston in the charging position or releasing the piston from the charging position;

the method is characterized in that: the control device comprises a locking piece and a transmission piece which can be selectively matched or separated with the locking piece, wherein the locking piece is provided with a blocking piece which can prevent the piston from moving, the blocking piece is provided with a blocking part which can be detached and can rotate relative to the blocking piece, the blocking part is in interference fit with at least one structure on the piston, the blocking piece has a first state and a second state, when the blocking piece is in the first state, the transmission piece is matched with the locking piece to prevent the piston from moving, and when the blocking piece is in the second state, the transmission piece is separated from the locking piece to allow the piston to move.

2. The nailer of claim 1, wherein said blocking member defines a mounting hole, said blocking portion extends into said mounting hole, said blocking portion defines a snap-fit member, said snap-fit member being in interference fit with said blocking member.

3. The nailer of claim 2, wherein said blocking member further defines an opening communicating with said mounting hole, said blocking member extending through said mounting hole and into said opening, said piston having at least one formation extending into said opening and in interference engagement with said blocking member.

4. The nailer of claim 3, wherein said opening is captured on one side of said striker, said striker having an interference notch with an inner wall in interference engagement with said stop.

5. The nail gun as claimed in claim 4, wherein the blocking member is provided with a limiting protrusion, and the limiting protrusion is engaged with an inner wall of the gun body to limit the stopping portion from staying at a position where the stopping portion can be in interference engagement with the interference notch.

6. The nailer of claim 1, wherein said blocking member is provided with a first securing aperture and said locking member is provided with a second securing aperture opposite said first securing aperture; and/or the presence of a gas in the gas,

a first concave part is arranged on one side surface of the blocking piece, the blocking part penetrates through the blocking piece, and one end of the blocking part is positioned in the first concave part; and/or the presence of a gas in the gas,

a guide surface is arranged on one side surface of the blocking piece, and the guide surface is arranged in an arc shape along the direction facing the firing pin.

7. The nailer of any one of claims 1-6, wherein the working chamber includes first and second working chambers in communication, the piston includes a first piston disposed within the first working chamber, a second piston disposed within the second working chamber, the striker is disposed on the first piston, the first piston is capable of being held in a stored position or released from a stored position for movement along the first working chamber axis to drive the striker to strike a fastening element, and the second piston is drivingly coupled to the drive mechanism.

8. The nailer of any one of claims 1-6, wherein the locking member includes a first mating portion, the driving member being selectively engageable with and disengageable from the first mating portion, the first mating portion being disengageable from the driving member when the driving member is driven by the drive mechanism.

9. The nail gun of claim 8, wherein the locking member and the transmission member are rotatably mounted in the gun body, the transmission member is provided with a second mating portion and an unlocking portion, the second mating portion is selectively mated with or unmated from the first mating portion, and the driving mechanism drives the unlocking portion to move; and/or the presence of a gas in the gas,

the transmission piece is provided with a first resetting piece, and the first resetting piece is used for biasing the transmission piece to enable the transmission piece to be kept in a matching state with the first matching and connecting part.

10. The nail gun according to any one of claims 1-6, wherein a transmission device is arranged between the output shaft of the driving mechanism and the transmission member, and the driving mechanism drives the transmission member to move through the transmission device.