Striking tool with limiting structure
By using a combination of limit pin and follower block in the nail gun, we ensure that the striker cannot move when there is no nail in the nail clip, which solves the problem of kinetic energy release caused by empty shooting of the nail gun, extends the service life of the tool and protects the operator's safety.
Patent Information
- Application Number
- CN202421697242.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-18
AI Technical Summary
During the empty shooting of existing nail guns, the kinetic energy of the striker cannot be released due to the lack of nails in the nail clip, resulting in the impact force being unable to be removed, which damages the hands of the staff and the internal components of the nail gun.
A strike tool with a limit structure is designed, using a combination of a limit pin shaft and a follower block. Through the first and second working states of the limit pin shaft, it is ensured that the striker cannot move when there is no gun nail in the nail clip and avoids empty punching.
It effectively prevents damage to the nail gun during the air shooting, extends the service life of the tool, and protects the safety of the operator.
Smart Images
Figure CN222920477U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of striking tools, and particularly relates to a striking tool with a limiting structure. Background Art
[0002] A nail gun is a fastening tool, mostly used in construction. At present, an electric nail gun powered by a lithium battery is widely used. This nail gun uses a driving motor and a corresponding transmission structure to push a piston. Then, the piston compresses a force supply spring or compressed gas for energy storage. When firing a nail, the force supply spring or air pressure drives the piston to move, and then drives a firing pin installed on the piston to strike and eject the nail to complete the nailing work.
[0003] The inventor found during practical use and research that every time a worker fires a nail, the nails inside the nail clip will be successively struck out. After the last nail is struck each time, since the worker doesn't know that this is the last nail, the worker will habitually press the switch button. At this time, the nail gun will fire in vain, and the firing pin used to strike out the nail will also perform corresponding striking movements. However, during this empty firing process, since there is no nail in the nail clip, the kinetic energy of the firing pin cannot be released, that is, the striking force inside the nail gun cannot be removed. Then, the kinetic energy of the firing pin is all applied to the components inside the nail gun, which will not only cause the worker's hand to be vibrated, but also greatly reduce the service life of the components inside the nail gun.
[0004] Therefore, we propose a striking tool with a limiting structure to solve the above problems. Content of the Utility Model
[0005] (1) Technical Problems to be Solved
[0006] In the prior art, during the empty firing process of a nail gun, since there is no nail in the nail clip, the kinetic energy of the firing pin cannot be released, that is, the striking force inside the nail gun cannot be removed. Then, the kinetic energy of the firing pin is all applied to the components inside the nail gun, which will not only cause the worker's hand to be vibrated, but also greatly reduce the service life of the components inside the nail gun.
[0007] (2) Technical Solutions
[0008] To solve the above problems, the utility model provides the following technical solutions:
[0009] A striking tool with a limiting structure, including a striking tool body having a nail clip assembly and a driving assembly thereon. The nail clip assembly is used to store gun nails, and the nail pushing slider on the nail clip assembly is used to push the gun nails to the muzzle of the striking tool body. The driving assembly includes a firing pin that can reciprocate. The firing pin is used to strike and eject the gun nails at the muzzle, and a follower block that moves with the firing pin is provided on the firing pin. It also includes a limiting pin shaft that is movably arranged at the muzzle and above the nail clip assembly. The limiting pin shaft has a first working state and a second working state. When the limiting pin shaft is in the first working state, there are gun nails temporarily stored inside the nail clip assembly, and the gun nails are located between the nail pushing slider and the limiting pin shaft, and the limiting pin shaft does not interfere with the movement path of the follower block. When the limiting pin shaft is in the second working state, the nail pushing slider abuts against the limiting pin shaft and pushes the limiting pin shaft upward into the movement path of the follower block so that the follower block is limited and blocked.
[0010] As a further scheme of the present utility model: An extension seat is fixedly arranged at the muzzle of the striking tool body. The limiting pin shaft is arranged on the extension seat, and the limiting pin shaft can move in the vertical direction.
[0011] As a further scheme of the present utility model: An elastic member is arranged on the extension seat, and the elastic member is used to make the limiting pin shaft have a movement tendency to move in the vertically downward direction.
[0012] As a further scheme of the present utility model: The elastic member is a return spring, and the return spring is sleeved outside the limiting pin shaft.
[0013] As a further scheme of the present utility model: The nail clip assembly includes a nail clip, and a chamber for storing gun nails is opened on the nail clip. The nail pushing slider is movably arranged along the length direction of the nail clip, and one end of the nail pushing slider extends into the chamber and abuts against the bottom of the gun nail.
[0014] As a further scheme of the present utility model: A convex part is arranged on the nail pushing slider.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the present utility model has the following beneficial effects:
[0017] 1. Through the arrangement of the follower block and the limit pin, the limit pin has a first working state and a second working state. When the limit pin is in the first working state, nails are temporarily stored inside the nail clamp assembly, and the nails are located between the nail pushing slider and the limit pin. The limit pin does not interfere with the movement path of the follower block, and the striking tool body can perform continuous nail shooting. When the limit pin is in the second working state, that is, when the nails are exhausted inside the nail clamp assembly, the nail pushing slider abuts against the limit pin and pushes the limit pin to move upward into the movement path of the follower block, so that the follower block is limited and stopped, and the firing pin cannot move. At this time, even if the user presses the switch button of the striking tool body, the striking tool body will not perform empty shooting, thereby protecting the striking tool body and extending the service life of the striking tool body.
[0018] 2. Through the setting of the elastic member, when nails are stored inside the nail clamp assembly, the downward elastic force applied by the elastic member to the limit pin shaft ensures that the position of the limit pin shaft will not be misoperated and interfere with the movement path of the follower block. That is, when nails are stored inside the nail clamp assembly, the limit pin shaft will always be subject to the downward elastic action of the elastic member, thereby ensuring that the top of the limit pin shaft will not move and interfere with the movement path of the follower block. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described below in conjunction with the accompanying drawings.
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 This is a partial cross-sectional view of the utility model. Figure 1 ;
[0022] Figure 3 It is a schematic diagram of the explosion structure of the utility model;
[0023] Figure 4 It is a schematic diagram of the overall structure of the limit pin and the push pin slider in the utility model;
[0024] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at A in the middle;
[0025] Figure 6 This is a partial cross-sectional view of the utility model. Figure 2 .
[0026] In the figure: 1. striking tool body; 2. nail pushing slider; 3. muzzle; 4. follower block; 5. limit pin; 6. extension seat; 7. elastic part; 8. nail clamp; 9. convex part. DETAILED DESCRIPTION
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.
[0028] As Figures 1 - 6 shown, a striking tool with a limiting structure includes a striking tool body 1 having a nail clip assembly and a driving assembly thereon. The nail clip assembly is used to store gun nails, and a nail pushing slider 2 on the nail clip assembly is used to push the gun nails to the muzzle 3 of the striking tool body 1. The driving assembly includes a firing pin (not shown in the figure) that can reciprocate, and the firing pin is used to strike and eject the gun nails at the muzzle 3. It should be noted that the above-mentioned nail clip assembly and driving assembly are both conventional settings in the prior art, and the nail pushing slider 2, firing pin, etc. are all its basic components, and their connection relationships and working principles are all conventional settings. In order to avoid cumbersome writing, they will not be elaborated here.
[0029] In this embodiment, a follower block 4 that moves with it is provided on the firing pin of the striking tool body 1. It also includes a limiting pin shaft 5 movably arranged at the muzzle 3 and located above the nail clip assembly. The limiting pin shaft 5 has a first working state and a second working state. When the limiting pin shaft 5 is in the first working state, there are gun nails temporarily stored inside the nail clip assembly, and the gun nails are located between the nail pushing slider 2 and the limiting pin shaft 5, and the limiting pin shaft 5 does not interfere with the movement path of the follower block 4. When the limiting pin shaft 5 is in the second working state, the nail pushing slider 2 abuts against the limiting pin shaft 5 and pushes the limiting pin shaft 5 upward to the movement path of the follower block 4, so that the follower block 4 is limited and blocked.
[0030] Among them, the first working state of the limiting pin shaft 5 can be represented by Figure 6 . In this state, there are gun nails stored inside the nail clip assembly. The nail pushing slider 2 applies an upward pushing force to the gun nails, and the position of the gun nails is stably in the nail clip assembly. The gun nails do not contact the limiting pin shaft 5, and the follower block 4 can move with the movement of the firing pin. The second working state of the limiting pin shaft 5 can be represented by Figure 2 . In this state, the gun nails in the nail clip assembly are completely ejected. At this time, the nail pushing slider 2 will be located at the top of the nail clip assembly. Furthermore, the protruding part at the top of the nail clip will abut against the bottom end of the limiting pin shaft 5. Under the upward pushing action of the nail pushing slider 2, the limiting pin shaft 5 will move upward until it moves into the movement path range of the follower block 4 and abuts and blocks the follower block 4. Subsequently, the firing pin cannot perform the corresponding striking action.
[0031] In summary, when there is no nail in the staple cartridge assembly, the protruding part at the top of the nail pushing slider 2 will push the limit pin shaft 5 upward, so that the limit pin shaft 5 can contact the follower block 4, ensuring that when the switch button of the striking tool body 1 is pressed, the firing pin cannot work, that is, dry firing cannot occur, protecting the striking tool body 1 and extending the service life of the striking tool body 1.
[0032] As Figures 3 - 5 shown, for the setting of the limit pin shaft 5 in the above, an extension seat 6 can be fixedly arranged at the muzzle 3 of the striking tool body 1, the limit pin shaft 5 is arranged on the extension seat 6, and the limit pin shaft 5 can move in the vertical direction.
[0033] When there is a nail stored in the staple cartridge assembly, in order to prevent the position of the limit pin shaft 5 from malfunctioning and interfering with the movement path of the follower block 4, an elastic member 7 can be arranged on the extension seat 6, and the elastic member 7 is used to make the limit pin shaft 5 have a tendency to move in the vertically downward direction, that is, when there is a nail stored in the staple cartridge assembly, the limit pin shaft 5 will always be under the downward elastic action of the elastic member 7, that is, to ensure that the top of the limit pin shaft 5 will not move to interfere with the movement path of the follower block 4. It should be noted that the downward acting force of this elastic member 7 on the limit pin shaft 5 is less than the upward pushing force of the nail pushing slider 2 on the limit pin shaft 5, so as to ensure that when there is no nail in the staple cartridge assembly, the nail pushing slider 2 can push the limit pin shaft 5 upward and move it into the movement path of the follower block 4.
[0034] As Figure 3 shown, preferably, the elastic member 7 is set as a return spring, and the return spring is sleeved outside the limit pin shaft 5. Of course, during use, the type of the elastic member 7 can be set according to the usage situation, as long as it can always make the limit pin shaft 5 receive a downward acting force.
[0035] As Figure 2 and Figure 6 shown, for the setting of the staple cartridge assembly in the above, the staple cartridge assembly includes a staple cartridge 8, and a chamber for storing nails is opened on the staple cartridge 8. The nail pushing slider 2 is movably arranged along the length direction of the staple cartridge 8, and one end of the nail pushing slider 2 extends into the chamber and abuts against the bottom of the nail. A torsion spring (not shown in the figure) is arranged inside the chamber to apply an upward pushing force to the nail pushing slider 2. During use, in order to facilitate the user to operate the nail pushing slider 2 to move downward to expose the chamber for better nail loading, a convex portion 9 can be arranged on the nail pushing slider 2.
[0036] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as defining the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.
Claims
1. A striking tool with a limiting structure, characterized in that: The invention comprises a striking tool body (1) having a nail clamp assembly and a driving assembly thereon, wherein the nail clamp assembly is used to store gun nails, and a nail pushing slide block (2) on the nail clamp assembly is used to push gun nails to a muzzle (3) of the striking tool body (1), and the driving assembly comprises a firing pin capable of reciprocating movement, the firing pin being used to strike and eject the gun nails at the muzzle (3), and a follower block (4) which moves with the firing pin is provided, and a limit pin shaft (5) movably provided at the muzzle (3) and located above the nail clamp assembly, and the limit pin shaft (5) is provided with a follower block (4) which moves with the firing pin, and a limit pin shaft (5) which is movably provided at the muzzle (3) and located above the nail clamp assembly, and the limit pin shaft (5) is provided with a follower block (4) which moves with the firing pin ... The shaft (5) has a first working state and a second working state. When the limit pin shaft (5) is in the first working state, a nail is temporarily stored inside the nail clamp assembly, and the nail is located between the nail pushing slider (2) and the limit pin shaft (5). The limit pin shaft (5) does not interfere with the movement path of the follower block (4). When the limit pin shaft (5) is in the second working state, the nail pushing slider (2) contacts the limit pin shaft (5) and pushes the limit pin shaft (5) to move upward to the movement path of the follower block (4), so that the follower block (4) is limited and stopped.
2. A striking tool with a limiting structure according to claim 1, characterized in that: An extension seat (6) is fixedly arranged at the muzzle (3) of the striking tool body (1), the limit pin shaft (5) is arranged on the extension seat (6), and the limit pin shaft (5) can move in a vertical direction.
3. The striking tool with a limiting structure according to claim 2, characterized in that: An elastic member (7) is provided on the extension seat (6), and the elastic member (7) is used to enable the limiting pin shaft (5) to have a movement tendency to move in a vertical downward direction.
4. The striking tool with a limiting structure according to claim 3, characterized in that: The elastic member (7) is provided with a return spring, and the return spring is sleeved on the outside of the limiting pin shaft (5).
5. The striking tool with a limiting structure according to claim 4, characterized in that: The nail clamp assembly comprises a nail clamp (8), and a chamber for storing gun nails is opened on the nail clamp (8), and the nail pushing slider (2) is movably arranged along the length direction of the nail clamp (8), and one end of the nail pushing slider (2) extends into the chamber and contacts the bottom of the gun nail.
6. The striking tool with a limiting structure according to claim 5, characterized in that: The nail-pushing slider (2) is provided with a convex portion (9).