Safety protection device for pneumatic nail gun
By designing a pneumatic nail gun safety protection device including pressing tooth plates, drive components and protective plates, the problem of the lack of protective structure of the existing pneumatic nail guns when not in use is solved, automatic protection is achieved, and safety is improved.
Patent Information
- Application Number
- CN202421415812.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing pneumatic nail guns lack effective protective structure when not in use, which can easily cause the gun nail to be shot out due to accidental touch of the trigger, causing safety hazards.
A safety protection device including a connecting block, a grip, a trigger, a protective frame, a storage groove, a protective plate, a sliding groove, a pressing tooth plate, a cavity, a winding roller and a pull rope are designed. By pressing the tooth plate drive assembly to slide the protective plate, the protective plate automatically covers the trigger when not in use, thereby improving safety.
It effectively reduces the possibility of accidentally touching the trigger, improves the safety of the pneumatic nail gun, and realizes automatic protection function without additional operation.
Smart Images
Figure CN222644479U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic nail guns, in particular to a safety protection device for a pneumatic nail gun. Background Art
[0002] Pneumatic nail guns are gun-type nailing tools that use air to drive nails. When compressed air is introduced into the gun body from the air nozzle and the trigger is pulled, the pressure at the rear of the balance valve is less than the pressure at the front of the balance valve, the balance valve opens, and compressed air quickly enters the cylinder sleeve, pushing the piston to drive the firing pin to hit the tail of the row of nails in the nail box, so that the row of nails is ejected, so as to achieve the purpose of connecting objects with the row of nails.
[0003] Some existing pneumatic nail guns do not have corresponding protective structures when in use. Therefore, if the trigger is accidentally touched when not working, nails may be ejected, thereby accidentally injuring workers. Even when the nail gun is started and falls out of hand, the trigger may be accidentally touched. The safety is low and effective protection cannot be achieved. In view of this, we propose a safety protection device for pneumatic nail guns to solve the above problems. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the utility model provides a safety protection device for a pneumatic nail gun, which solves the problem that some existing pneumatic nail guns have low safety.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety protection device for a pneumatic nail gun, comprising a pneumatic nail gun body, a connecting block is provided on the lower surface of the pneumatic nail gun body, a handle is fixedly connected to the lower surface of the connecting block, a trigger extending to the outside is provided inside the connecting block, a protection frame is fixedly connected to the lower surface of the connecting block, the interior of the protection frame is hollow, a storage groove extending to the outside is provided on the inner wall of the protection frame, a protection plate is slidably connected to the interior of the storage groove, a sliding groove is provided on the outer surface of the handle, a cavity is provided inside the side wall of the protection plate, a driving assembly is provided inside the cavity, a pressing tooth plate is slidably connected to the interior of the sliding groove, the pressing tooth plate extends into the interior of the cavity, and two winding rollers are rotatably connected to the bottom wall of the cavity, the two winding rollers are located on both sides of the pressing tooth plate, and the outer surfaces of the two winding rollers are both provided with a pull rope, the pull rope is fixedly connected to the protection plate with one end away from the winding roller, and an arc baffle is fixedly connected to the lower surface of the connecting block.
[0008] Preferably, the protective plate is in a concave shape, the cavity and the sliding groove are connected, the lower part of the sliding groove is connected to the cavity, a first spring is fixedly connected between the pressing tooth plate and the inner wall of the cavity, and a second spring is fixedly connected between the protective plate and the inner wall of the sliding groove.
[0009] Preferably, the driving assembly includes two first rotating shafts, both of which are rotatably connected to the bottom wall of the cavity, and are respectively located on both sides of the pressing tooth plate. A second rotating shaft is arranged between the first rotating shaft and the winding roller, and the second rotating shaft is also rotatably connected to the bottom wall of the cavity. The outer surfaces of the two first rotating shafts are both sleeved with a first gear, the outer surfaces of the two second rotating shafts are both sleeved with a second gear, and the outer surfaces of the two winding rollers are both sleeved with a third gear.
[0010] Preferably, the first gear is meshed with the second gear, the second gear is meshed with the third gear, and the first gear is meshed with teeth on both side surfaces of the pressing gear plate.
[0011] Preferably, the diameter of the second gear is half of that of the first gear, and the diameter of the third gear is half of that of the second gear.
[0012] (III) Beneficial effects
[0013] Compared with the prior art, the utility model provides a safety protection device for a pneumatic nail gun, which has the following beneficial effects:
[0014] 1. The safety protection device for the pneumatic nail gun can cover the trigger by pressing the tooth plate, the driving assembly and the protection plate when the device is not in use, thereby improving the safety of the pneumatic nail gun body as much as possible, reducing the possibility of accidentally touching the trigger, and having a good protection effect.
[0015] 2. The safety protection device for the pneumatic nail gun can protect the trigger together with the protective plate by setting the arc baffle plate when the protective plate slides out of the sliding groove. At the same time, the shape of the arc baffle plate can also increase the space for the staff to pull the trigger as much as possible, which is convenient for the staff to use the pneumatic nail gun body.
[0016] 3. The safety protection device for the pneumatic nail gun improves the sliding efficiency of the protective plate inside the sliding groove by setting the driving component, thereby ensuring the efficiency of the protective plate sliding out of the sliding groove, further improving the protective effect of the protective plate on the trigger, improving the safety of the device, and having high practicality. The automatic protection function can be realized without additional operation of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1It is a structural schematic diagram of a safety protection device for a pneumatic nail gun of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the protective frame of the utility model;
[0019] Figure 3 It is a schematic diagram of the rear structure of the pneumatic nail gun body of the utility model;
[0020] Figure 4 It is a cross-sectional schematic diagram of the protection frame of the utility model;
[0021] Figure 5 It is a structural schematic diagram of the winding roller of the utility model.
[0022] In the figure: 1. pneumatic nail gun body; 2. connecting block; 3. grip; 4. trigger; 5. protective frame; 6. storage slot; 7. protective plate; 8. sliding slot; 9. pressing tooth plate; 10. cavity; 11. winding roller; 12. pull rope; 13. arc baffle; 14. first spring; 15. second spring; 16. first rotating shaft; 17. second rotating shaft; 18. first gear; 19. second gear; 20. third gear. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-Figure 5The utility model provides a technical solution: a safety protection device for a pneumatic nail gun, comprising a pneumatic nail gun body 1, a connecting block 2 is arranged on the lower surface of the pneumatic nail gun body 1, a grip 3 is fixedly connected to the lower surface of the connecting block 2, a trigger 4 extending outward is arranged inside the connecting block 2, a protective frame 5 is fixedly connected to the lower surface of the connecting block 2, the interior of the protective frame 5 is hollow, a storage groove 6 extending outward is provided on the inner wall of the protective frame 5, a protective plate 7 is slidably connected to the interior of the storage groove 6, and the shape of the protective plate 7 is a concave shape, a sliding groove 8 is provided on the outer surface of the grip 3, a cavity 10 is provided inside the side wall of the protective plate 7, the cavity 10 and the sliding groove 8 are connected, a driving component is arranged inside the cavity 10, a pressing tooth plate 9 is slidably connected to the interior of the sliding groove 8, and the pressing tooth plate 9 extends into the interior of the cavity 10, and the staff holds the grip 3 by hand, and then pushes the pressing tooth plate 9 with the thumb, and at this time the pressing tooth plate 9 will be in the sliding groove 8. The two winding rollers 11 are respectively provided with a pull rope 12 on the outer surfaces of the two winding rollers 11, and the pull rope 12 is fixedly connected to the protective plate 7 with one end away from the winding roller 11. The two winding rollers 11 are driven by the driving assembly to rotate synchronously, and the rotation of the winding roller 11 will reel in the pull rope 12, and the protective plate 7 is pulled to slide inside the sliding groove 8 by the reeling of the pull rope 12, and finally the trigger 4 is exposed. The above structure solves the problem of low safety of some existing pneumatic nail guns. By pressing the tooth plate 9, the driving assembly and the protective plate 7, the protective plate 7 can cover the trigger 4 when the device is not in use, thereby improving the safety of the pneumatic nail gun body 1 as much as possible, reducing the possibility of accidentally touching the trigger 4, and having a good protection effect.
[0025] Furthermore, an arc-shaped baffle plate 13 is fixedly connected to the lower surface of the connecting block 2. The arc-shaped baffle plate 13 can protect the trigger 4 together with the protective plate 7 when the protective plate 7 slides out of the sliding groove 8. At the same time, the shape of the arc-shaped baffle plate 13 can also increase the space for the staff to pull the trigger 4 as much as possible, thereby facilitating the staff to use the pneumatic nail gun body 1.
[0026] Furthermore, a first spring 14 is fixedly connected between the pressing tooth plate 9 and the inner wall of the cavity 10, and a second spring 15 is fixedly connected between the protective plate 7 and the inner wall of the sliding groove 8. When the staff pushes the pressing tooth plate 9, the first spring 14 will contract, and then the protective plate 7 is pulled by the pull rope 12 to contract the second spring 15. When the pneumatic nail gun body 1 is out of hand or not in use, the two winding rollers 11 will reverse by relying on the elastic force of the first spring 14 and the second spring 15 themselves, and the line-releasing movement will be performed at this time. Then, the protective plate 7 will slide out of the sliding groove 8 by the elastic force of the second spring 15 itself, and finally the automatic shutdown is realized to cover the trigger 4, which greatly improves the safety of the pneumatic nail gun body 1 and has high practicality.
[0027] Furthermore, the driving assembly includes two first rotating shafts 16, and the two first rotating shafts 16 are both rotatably connected to the bottom wall of the cavity 10. The two first rotating shafts 16 are respectively located on both sides of the pressing tooth plate 9. A second rotating shaft 17 is arranged between the first rotating shaft 16 and the winding roller 11, and the second rotating shaft 17 is also rotatably connected to the bottom wall of the cavity 10. The outer surfaces of the two first rotating shafts 16 are sleeved with first gears 18, the outer surfaces of the two second rotating shafts 17 are sleeved with second gears 19, and the outer surfaces of the two winding rollers 11 are sleeved with third gears 20. The first gear 18 and the second gear 19 are meshingly connected, and the second gear 19 and the third gear 20 are meshingly connected. The diameter of the second gear 19 is half of the first gear 18, and the third gear 20 is meshingly connected. The diameter of the wheel 20 is half of the second gear 19. The first gear 18 and the teeth on the two side surfaces of the pressing tooth plate 9 are meshed and connected. The sliding of the pressing tooth plate 9 drives the two first gears 18 to rotate, and the rotation of the first gear 18 drives the second gear 19 to rotate, and the rotation of the second gear 19 drives the third gear 20 to rotate, finally realizing the winding and unwinding of the winding roller 11. The setting of the driving component is used to improve the sliding efficiency of the protective plate 7 in the sliding groove 8, thereby ensuring the efficiency of the protective plate 7 sliding out of the sliding groove 8, further improving the protective effect of the protective plate 7 on the trigger 4, improving the safety of the device, and having high practicality. The automatic protection function can be realized without additional operation of the protective device.
[0028] Working principle:
[0029] When the safety protection device for the pneumatic nail gun is in use, the staff holds the handle 3 with their hands, and then pushes the pressing tooth plate 9 with their thumb. At this time, the pressing tooth plate 9 will slide inside the sliding groove 8, and finally the movement of the pressing tooth plate 9 will drive the movement of the driving component, and the two winding rollers 11 will be driven by the driving component to rotate synchronously. The rotation of the winding roller 11 will reel in the pull rope 12, and the reeling of the pull rope 12 will pull the protective plate 7 to slide inside the sliding groove 8, and finally the trigger 4 will be exposed.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A safety device for a pneumatic nail gun, comprising a pneumatic nail gun body (1), characterized in that: The lower surface of the pneumatic nail gun body (1) is provided with a connecting block (2), the lower surface of the connecting block (2) is fixedly connected with a handle (3), the interior of the connecting block (2) is provided with a trigger (4) extending outward, the lower surface of the connecting block (2) is fixedly connected with a protective frame (5), the interior of the protective frame (5) is hollow, the inner wall of the protective frame (5) is provided with a storage groove (6) extending outward, the interior of the storage groove (6) is slidably connected with a protective plate (7), the outer surface of the handle (3) is provided with a sliding groove (8), the side wall of the protective plate (7) is provided with a cavity (1 0), a driving assembly is arranged inside the cavity (10), a pressing tooth plate (9) is slidably connected inside the sliding groove (8), the pressing tooth plate (9) extends into the cavity (10), the bottom wall of the cavity (10) is rotatably connected to two winding rollers (11), the two winding rollers (11) are located on both sides of the pressing tooth plate (9), the outer surfaces of the two winding rollers (11) are sleeved with a pull rope (12), the pull rope (12) is fixedly connected to the protective plate (7) at one end away from the winding roller (11), and the lower surface of the connecting block (2) is fixedly connected to an arc-shaped baffle (13).
2. A safety protection device for a pneumatic nail gun according to claim 1, characterized in that: The shape of the protection plate (7) is a concave shape, the cavity (10) and the sliding groove (8) are connected, and the lower part of the sliding groove (8) is connected to the cavity (10).
3. A safety protection device for a pneumatic nail gun according to claim 2, characterized in that: A first spring (14) is fixedly connected between the pressing tooth plate (9) and the inner wall of the cavity (10), and a second spring (15) is fixedly connected between the protective plate (7) and the inner wall of the sliding groove (8).
4. A safety protection device for a pneumatic nail gun according to claim 3, characterized in that: The driving assembly comprises two first rotating shafts (16), both of which are rotatably connected to the bottom wall of the cavity (10), and the two first rotating shafts (16) are respectively located on both sides of the pressing tooth plate (9). A second rotating shaft (17) is arranged between the first rotating shaft (16) and the winding roller (11), and the second rotating shaft (17) is also rotatably connected to the bottom wall of the cavity (10).
5. A safety protection device for a pneumatic nail gun according to claim 4, characterized in that: The outer surfaces of the two first rotating shafts (16) are sleeved with a first gear (18), the outer surfaces of the two second rotating shafts (17) are sleeved with a second gear (19), and the outer surfaces of the two winding rollers (11) are sleeved with a third gear (20).
6. A safety protection device for a pneumatic nail gun according to claim 5, characterized in that: The first gear (18) and the second gear (19) are meshed and connected, and the second gear (19) and the third gear (20) are meshed and connected.
7. A safety protection device for a pneumatic nail gun according to claim 6, characterized in that: The diameter of the second gear (19) is half of that of the first gear (18), and the diameter of the third gear (20) is half of that of the second gear (19).
8. A safety protection device for a pneumatic nail gun according to claim 7, characterized in that: The first gear (18) is meshedly connected with the teeth on both side surfaces of the pressing tooth plate (9).