Lock catch device of pneumatic nail gun trigger

Abstract

The utility model provides a locking device of a pneumatic nail gun trigger, belongs to the field of nailing equipment, and solves the problem that a pneumatic nail gun is possibly touched by mistake due to opening of a safety lock when the pneumatic nail gun stops working. The trigger assembly comprises a trigger and a protection frame, the trigger is connected with a pressing rod, the pressing rod is provided with a blind hole, the trigger is connected with the blind hole in a sliding mode, the protection frame is provided with a rotating rod, the rotating rod is provided with a rotating block, the protection frame is provided with an installation part, and the installation part is provided with a baffle. The trigger is provided with a sliding block, a sliding groove is provided with a guide plate, a reset spring is installed between the sliding block and the guide plate, the protection frame is provided with a positioning groove, the positioning groove is provided with a rectangular through hole, and the rotating block is provided with a corresponding clamping hook. The trigger has the advantages that the rotating block and the baffle are arranged to lock the trigger, the rotating block prevents fingers from stretching into the trigger and needs to be moved away after the clamping hook is pushed aside, the baffle is unlocked due to opening of the rotating block, re-locking is facilitated, and use is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic nail guns, and relates to a pneumatic nail gun, and particularly to a locking device for a pneumatic nail gun trigger. Background Technology

[0002] A pneumatic nail gun is a nail gun used to drive steel nails. Pneumatic nail guns are mainly used for interior decoration, concrete, and nailing wooden strips or iron plates. They are used to fix various bamboo, wood products and other soft or hard sheet materials to brick and concrete walls and concrete components, as well as to connect and fix low-density metal or polymer material components.

[0003] Existing pneumatic nail guns are easy to operate; after connecting to a power source, the trigger can be pulled to fire nails. During operation, in order to improve work efficiency, users often connect the nail gun to the power source, which may lead to accidental triggering when gripping the nail gun, potentially causing injury to the user and others. The safety structure that closes the muzzle at the gun muzzle cannot prevent the nail gun from firing, and nails fired by accident can easily remain in the muzzle, causing nail gun malfunction.

[0004] For example, a nail gun with a safety lock, as described in application number 202320860427.3, includes a nail gun, a protective cylinder, and a nail delivery tube. A sliding groove is opened on the outer side of the protective cylinder, and grooves communicating with the sliding groove are symmetrically opened on both sides of the protective cylinder. The sliding groove is slidably connected to a pressure ring, and an adjustment component is installed in the groove. Safety lock components are installed on both sides of the protective cylinder.

[0005] The aforementioned patent uses a pressure ring to drive the adjustment component and activate the safety lock component. During use, the pressure ring needs to be pressed against the surface of the object to allow the nail to be fired. However, the trigger is not restricted, and pulling the trigger can fire the nail normally, leading to accidental activation. Although the nail is blocked by the safety lock, the nail will remain inside the nail gun, requiring cleaning and causing maintenance trouble. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in the prior art by providing a locking device that restricts the arbitrary movement of the trigger of a pneumatic nail gun.

[0007] This utility model can be achieved through the following technical solution: a locking device for a pneumatic nail gun trigger, comprising a nail gun body, a trigger assembly mounted on the nail gun body, the trigger assembly including a trigger and a protective frame, the trigger being connected to a pressure rod, a blind hole being formed in the pressure rod, an elastic plate being fixed in the blind hole, the trigger being slidably connected to the blind hole, a rotating rod being provided on the protective frame, a rotating plate being mounted on the rotating rod, a mounting part being provided on the protective frame, a baffle being installed in the mounting part, the baffle penetrating into the protective frame, a sliding groove being formed in the protective frame, a slider being provided on the trigger, a guide plate being installed in the sliding groove, and a return spring being installed between the slider and the guide plate.

[0008] In the locking device of the pneumatic nail gun trigger described above, a limiting plate is provided below the baffle, and a spring is installed between the limiting plate and the mounting part.

[0009] In the locking device of the pneumatic nail gun trigger described above, a fixing part is provided under the limiting plate, a locking block is installed on the fixing part, a spring is installed between the locking block and the fixing part, and the mounting part has a corresponding locking groove.

[0010] In the aforementioned locking device of the pneumatic nail gun trigger, there are two slots, which are arranged vertically.

[0011] In the locking device of the pneumatic nail gun trigger described above, the fixing part is provided with a slide rod, the slide rod passes through the mounting part, and a push block is provided at the end of the slide rod.

[0012] In the aforementioned locking device of the pneumatic nail gun trigger, a hook is provided on the protective frame, a rectangular through hole is provided on the rotating plate, and a groove is provided on the rectangular through hole.

[0013] In the locking device of the pneumatic nail gun trigger described above, the rotating plate is provided with protrusions corresponding to the slot.

[0014] In the aforementioned locking device of the pneumatic nail gun trigger, a locking pin is connected to the return spring, a gourd groove is provided on the slider, and a gourd groove is provided on the guide plate.

[0015] In the aforementioned locking device of the pneumatic nail gun trigger, a locking plate is installed on the slide rail, a pry groove is provided on the locking plate, and several slots are provided inside the slide rail.

[0016] Compared with the prior art, the advantages of this utility model are as follows: a locking structure is provided, which opens the rotating plate during operation to start using the nail gun; the baffle can be unlocked by the rotating plate engaging the slot in the mounting part, and the lock can be reset by the push block moving upward, which facilitates limiting the displacement of the trigger during non-working hours and prevents accidental firing. Attached Figure Description

[0017] Figure 1 This is a side view of the locking mechanism of the pneumatic nail gun trigger;

[0018] Figure 2 This is a cross-sectional view of the locking device of the pneumatic nail gun trigger;

[0019] Figure 3 It is a 3D view of the baffle of the locking device of the pneumatic nail gun trigger;

[0020] Figure 4 yes Figure 3 Enlarged view of center circle A;

[0021] Figure 5 yes Figure 3 Enlarged view of center circle B;

[0022] Figure 6 It is a 3D view of the locking mechanism of a pneumatic nail gun trigger;

[0023] Figure 7 This is a 3D view of the guide plate of the locking device of the pneumatic nail gun trigger;

[0024] Figure 8 It is a 3D view of the locking plate of the pneumatic nail gun trigger;

[0025] The components include: 1. Nail gun body; 2. Trigger assembly; 21. Trigger; 211. Slider; 212. Hoist groove one; 22. Protective frame; 221. Mounting part; 222. Slide groove; 222a. Slot; 223. Card slot; 224. Card hook; 3. Pressure rod; 31. Blind hole; 311. Elastic plate; 4. Rotating rod; 41. Rotating plate; 411. Rectangular through hole; 412. Groove; 413. Protrusion; 5. Baffle; 51. Limiting plate; 52. Spring one; 53. Fixing part; 531. Card block; 532. Spring two; 533. Slide rod; 534. Push block; 6. Guide plate; 61. Hoist groove two; 7. Return spring; 71. Card post; 8. Card plate; 81. Pry groove. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figures 1 to 8 As shown, this utility model can be implemented through the following embodiments: A locking device for a pneumatic nail gun trigger includes a nail gun body 1, a trigger assembly 2 mounted on the nail gun body 1, the trigger assembly 2 including a trigger 21 and a protective frame 22, the trigger 21 being connected to a pressure rod 3, a blind hole 31 being opened in the pressure rod 3, an elastic plate 311 being fixed in the blind hole 31, the trigger 21 being slidably connected to the blind hole 31, a rotating rod 4 being provided on the protective frame 22, a rotating plate 41 being installed on the rotating rod 4, a mounting part 221 being provided on the protective frame 222, a baffle 5 being installed in the mounting part 221, the baffle 5 penetrating into the protective frame 22, a sliding groove 222 being opened in the protective frame 22, a slider 211 being provided on the trigger 21, a guide plate 6 being installed in the sliding groove 222, and a return spring 7 being installed between the slider 211 and the guide plate 6.

[0028] The lever 3 is slidably connected to the trigger 21 via a blind hole 31, leaving a gap between the lever 3 and the trigger 21. When the trigger 21 is pulled, the trigger 21 slides quickly and comes into full contact with the lever 3. After the trigger 21 triggers the elastic plate, the elastic plate vibrates and makes a sound. After confirming the sound, the user continues to push the trigger 21 to trigger the nail. The rotating plate 41 is set to fill the gap between the trigger 21 and the protective frame 22, preventing the finger from resting on the trigger 21 without obstruction, which could lead to accidental activation when holding the nail gun. The baffle 5 is located between the lever 3 and the trigger 21 to prevent the trigger 21 from squeezing the lever 3 and causing accidental activation. The trigger 21 is slidably connected to the slider 211 and the slide groove 222 and is reset by the return spring 7, which provides tension and increases the force threshold for pulling the trigger 21. The elastic plate 311 is used to make a sound to remind the user when the trigger 21 comes into contact with the lever 3, preventing accidental activation.

[0029] like Figures 2 to 4 As shown, a limiting plate 51 is provided below the baffle 5, and a spring 52 is installed between the limiting plate 51 and the mounting part 221. The limiting plate 51 is used to support the spring 52, so that the spring 52 can drive the baffle 5 to slide downward through the limiting plate 51 and release the restriction of the baffle 5.

[0030] like Figures 2 to 3 As shown, a fixing part 53 is provided under the limiting plate 51. A locking block 531 is installed on the fixing part 53. A second spring 532 is installed between the locking block 531 and the fixing part 53. The mounting part 221 has a corresponding slot 223. The locking block 531 and the slot 223 cooperate to fix the position of the fixing part 53, thereby fixing the position of the baffle 5 and preventing the baffle 5 from being unlocked by the push of the first spring 52. The second spring 532 facilitates the movement of the locking block 531 within the fixing part 53 and facilitates the locking block 531 to be engaged in the slot 223 after movement.

[0031] like Figure 2 and Figure 4 As shown, there are two slots 223, which are arranged vertically. The two slots 223 are used to adjust and fix the position of the baffle 5 in conjunction with the locking block 531, to prevent the baffle 5 from sliding with the spring 52 after contact locking, which would cause the baffle 5 to obstruct the trigger 21 when the trigger 21 is moved, thus affecting the normal use of the nail gun.

[0032] like Figure 3 As shown, the fixing part 53 is provided with a slide rod 533, which extends through the mounting part 221, and a push block 534 is provided at the end of the slide rod 533. The push block 534 facilitates the user to apply force, and drives the fixing part 53 to drive the baffle 5 to return to the locked state, preventing the trigger 21 from being accidentally activated when work is paused.

[0033] like Figure 2 and Figure 5As shown, a hook is provided on the protective frame, and a rectangular through hole 411 is provided on the rotating plate. A groove 412 is provided on the rectangular through hole 411. The hook cooperates with the rectangular through hole 411 and the groove 412 to fix the position of the rotating plate and prevent the user from directly inserting his / her fingers into the protective frame. The user can only rotate the rotating plate after moving the hook so that it disengages from the rectangular through hole 411, and then insert his / her fingers into the protective frame and pull the trigger.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the rotating plate 41 is provided with a protrusion 413 corresponding to the slot 223. After the rotating plate 41 rotates, it is engaged with the upper slot 223, causing the locking block 531 to push out of the slot 223, causing the spring 52 to push the baffle 5 down and release the locking of the baffle 5.

[0035] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, a retaining post 71 is connected to the return spring 7, a gourd groove 212 is provided on the slider 211, and a gourd groove 61 is provided on the guide plate 6. Retaining posts 71 are installed at both ends of the return spring 7. The retaining posts 71 are engaged with the slider 211 and the guide plate 6 through the gourd groove 212 and the gourd groove 61. A limit plate is provided on the retaining post 71 to restrict its axial movement and prevent it from moving the spring. The gourd groove 212 and the gourd groove 61 are used to engage the retaining post 71 and facilitate replacement.

[0036] like Figure 2 , Figure 4 and Figure 8 As shown, a retaining plate 8 is installed on the slide 222, and a pry groove 81 is provided on the retaining plate 8. Several slots 222a are provided inside the slide 222. The retaining plate 8 is detachably installed on the slide 222. The pry groove 81 provides an opening for prying open the retaining plate 8. An insert plate is provided on the retaining plate 8, and the insert plate is engaged and fixed with the slide 222. The slots 222a are used to install the guide plate 6. The slots 222a and the retaining plate 8 cooperate to restrict the movement of the guide plate 6, so as to adjust the distance between the spring and the trigger 21 by adjusting the position of the guide plate 6, thereby adjusting the tension of the spring on the trigger 21.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0038] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A locking device for a pneumatic nail gun trigger, comprising a nail gun body (1), wherein the nail gun body (1) is equipped with a trigger (21) assembly (2), the trigger (21) assembly (2) comprising a trigger (21) and a protective frame (22), wherein the trigger (21) is connected to a pressure rod (3), characterized in that, A blind hole (31) is provided in the pressure rod (3), and an elastic plate (311) is fixed in the blind hole (31). The trigger (21) is slidably connected to the blind hole (31). A rotating rod (4) is provided on the protective frame (22), and a rotating plate (41) is installed on the rotating rod (4). The protective frame (22) is provided with a mounting part (221), and a baffle (5) is installed in the mounting part (221). The baffle (5) extends through the protective frame (22). A sliding groove (222) is provided in the protective frame (22). A slider (211) is provided in the trigger (21), and a guide plate (6) is installed in the sliding groove (222). A return spring (7) is installed between the slider (211) and the guide plate (6).

2. The locking device for a pneumatic nail gun trigger according to claim 1, characterized in that, A limiting plate (51) is provided below the baffle (5), and a spring (52) is installed between the limiting plate (51) and the mounting part (221).

3. The locking device for a pneumatic nail gun trigger according to claim 2, characterized in that, A fixing part (53) is provided under the limiting plate (51), and a card block (531) is installed on the fixing part (53). A spring (532) is installed between the card block (531) and the fixing part (53). The mounting part (221) has a corresponding card slot (223).

4. The locking device for a pneumatic nail gun trigger according to claim 3, characterized in that, There are two card slots (223), and the two card slots (223) are arranged vertically.

5. The locking device for a pneumatic nail gun trigger according to claim 3, characterized in that, The fixing part (53) is provided with a slide rod (533), the slide rod (533) extends through the mounting part (221), and a push block (534) is provided at the end of the slide rod (533).

6. The locking device for a pneumatic nail gun trigger according to claim 1, characterized in that, The protective frame (22) is provided with a hook (224), the rotating plate (41) is provided with a rectangular through hole (411), and the rectangular through hole (411) is provided with a groove (412).

7. The locking device for a pneumatic nail gun trigger according to claim 1, characterized in that, The rotating plate (41) is provided with protrusions (413) corresponding to the slot (223).

8. The locking device for a pneumatic nail gun trigger according to claim 1, characterized in that, The reset spring (7) is connected to a locking post (71), the slider (211) has a gourd groove one (212), and the guide plate (6) has a gourd groove two (61).

9. The locking device for a pneumatic nail gun trigger according to claim 1, characterized in that, A retaining plate (8) is provided outside the slide groove (222), a pry groove (81) is provided on the retaining plate (8), and a plurality of slots (222a) are provided inside the slide groove (222).

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