A striker assist assembly and nail gun
Patent Information
- Application Number
- CN202522213434.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-20
AI Technical Summary
The O-ring between the firing pin and the gun body of existing C-type nail guns is prone to wear and deformation during use, leading to air leakage and deviation of the firing pin from its movement trajectory, which affects the normal use of the nail gun and shortens the life of the components.
The impact pin auxiliary assembly consists of a positioning sleeve, an inner seal, and an outer seal. The impact pin is lubricated by lubricating oil and supported by elastic force. Combined with a limiting component, the movement trajectory of the impact pin is restricted to prevent wear and air leakage.
It effectively limits the movement trajectory of the firing pin, prevents wear and leakage, extends component life, and reduces maintenance costs.
Smart Images
Figure CN224927901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of firing pins, and in particular to a firing pin auxiliary component and a nail gun. Background Technology
[0002] Existing C-type nail guns use an O-ring between the firing pin and the gun body to seal the gap and prevent air leakage from the internal air chamber, which would affect the normal operation of the nail gun. However, during use, the firing pin moves back and forth relative to the gun body, constantly rubbing against the O-ring without proper lubrication. Over time, the O-ring is prone to wear and deformation, leading to air leakage. Furthermore, the O-ring does not provide adequate support and restraint for the firing pin, causing it to deviate from its trajectory, rubbing against the gun body or other components, and even jamming. This significantly impacts the nail gun's normal operation, shortens the lifespan of the firing pin and other components, and increases maintenance costs. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a striker auxiliary component that effectively limits the striker and prevents air leakage.
[0004] The technical problem to be solved by this utility model is to provide a nail gun including the firing pin auxiliary component.
[0005] To solve the above-mentioned technical problems, this utility model provides a firing pin auxiliary component, including a positioning sleeve, an inner sealing element, and an outer sealing element. The positioning sleeve and the inner sealing element are both sleeved on the outside of the firing pin, and the inner sealing element is disposed between the positioning sleeve and the firing pin. The positioning sleeve abuts against the firing pin through the inner sealing element. The outer sealing element is sleeved on the outside of the positioning sleeve. The space between the positioning sleeve and the firing pin is filled with lubricating oil.
[0006] As an improvement to the above solution, the positioning sleeve is provided with a positioning channel that passes through both of its two ends, and the positioning sleeve is sleeved on the outside of the firing pin through the positioning channel; The positioning channel has a lubrication groove on its side wall, and the lubrication groove is filled with lubricating oil.
[0007] As an improvement to the above solution, the side wall of the positioning channel is provided with an inner sealing groove, and the inner sealing element is embedded in the inner sealing groove.
[0008] As an improvement to the above solution, the outer wall of the positioning sleeve is provided with an outer sealing groove, and the outer sealing element is embedded in the outer sealing groove.
[0009] As an improvement to the above solution, the firing pin auxiliary assembly further includes a limiting member, which is used to restrict the movement of the positioning sleeve.
[0010] Accordingly, this utility model also provides a nail gun, including a gun body, a firing pin, and the aforementioned firing pin auxiliary assembly. The firing pin and the firing pin auxiliary assembly are both installed in the gun body. The gun body and the positioning sleeve are fixedly connected, and the firing pin can move relative to the positioning sleeve.
[0011] As an improvement to the above solution, the gun body is provided with an air chamber and a firing pin channel, the air chamber and the firing pin channel are connected, and the positioning sleeve is fixedly installed in the firing pin channel; the positioning sleeve abuts against the inner wall of the firing pin through an outer sealing element.
[0012] As an improvement to the above solution, the positioning sleeve is provided with a positioning channel that passes through both of its two ends, and the positioning sleeve is sleeved on the outside of the firing pin through the positioning channel; The positioning channel has a lubrication groove on its side wall, and the lubrication groove is filled with lubricating oil.
[0013] As an improvement to the above solution, the side wall of the positioning channel is provided with an inner sealing groove, and the inner sealing element is embedded in the inner sealing groove; The outer wall of the positioning sleeve is provided with an outer sealing groove, and the outer sealing element is embedded in the outer sealing groove.
[0014] As an improvement to the above solution, the firing pin auxiliary assembly further includes a limiting member, which is used to restrict the movement of the positioning sleeve; The gun body is provided with a positioning groove, and the outer wall of the positioning sleeve is provided with a limiting groove. The positioning groove and the limiting groove are respectively provided; the limiting member is embedded in the positioning groove and the limiting groove.
[0015] The following are the beneficial effects of implementing this utility model: This utility model's firing pin auxiliary assembly uses a positioning sleeve to limit and support the movement of the firing pin, effectively restricting its trajectory. Furthermore, the elastic force generated by the inner and outer seals not only provides cushioning but also ensures that the axes of the positioning sleeve and the firing pin are aligned, reducing deviations from their intended path during movement. This prevents friction or jamming between the firing pin and the gun body or other components, ensuring normal operation, extending the service life of the firing pin and other parts, and reducing maintenance costs. Simultaneously, the inner seal seals the gap between the firing pin and the positioning sleeve, while the outer seal seals the gap between the positioning sleeve and the gun body, preventing air leakage.
[0016] Furthermore, lubricating oil is filled between the positioning sleeve and the firing pin, which provides excellent lubrication for the inner seal and the firing pin. This prevents the inner seal from wearing and deforming due to friction with the firing pin after prolonged use, thus preventing air leakage, extending service life, and reducing maintenance costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the nail gun of this utility model; Figure 2 yes Figure 1 A sectional view; Figure 3 yes Figure 2 Enlarged view of point A; Figure 4 yes Figure 3 Schematic diagram of the positioning sleeve; Figure 5 yes Figure 4 A sectional view. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0019] See Figure 1-5 This utility model discloses a striker auxiliary component, including a positioning sleeve 1, an inner sealing element 2, and an outer sealing element 3. The positioning sleeve 1 and the inner sealing element 2 are both sleeved on the outside of the striker 10. The inner sealing element 2 is disposed between the positioning sleeve 1 and the striker 10. The positioning sleeve 1 abuts against the striker 10 through the inner sealing element 2. The outer sealing element 3 is sleeved on the outside of the positioning sleeve 1.
[0020] The space between the positioning sleeve 1 and the firing pin 10 is filled with lubricating oil.
[0021] This utility model's firing pin auxiliary assembly uses a positioning sleeve to limit and support the movement of the firing pin, effectively restricting its trajectory. Furthermore, the elastic force generated by the inner and outer seals not only provides cushioning but also ensures that the axes of the positioning sleeve and the firing pin are aligned, reducing deviations from their intended path during movement. This prevents friction or jamming between the firing pin and the gun body or other components, ensuring normal operation, extending the service life of the firing pin and other parts, and reducing maintenance costs. Simultaneously, the inner seal seals the gap between the firing pin and the positioning sleeve, while the outer seal seals the gap between the positioning sleeve and the gun body, preventing air leakage.
[0022] Furthermore, lubricating oil is filled between the positioning sleeve and the firing pin, which provides excellent lubrication for the inner seal and the firing pin. This prevents the inner seal from wearing and deforming due to friction with the firing pin after prolonged use, thus preventing air leakage, extending service life, and reducing maintenance costs.
[0023] Specifically, the positioning sleeve 1 is provided with positioning channels 11 extending through its two ends, and the positioning sleeve 1 is fitted over the firing pin 10 through the positioning channels 11. That is, the firing pin 10 passes through the positioning sleeve 1, and the firing pin portion is placed inside the positioning channels. The firing pin moves back and forth relative to the positioning sleeve within the positioning channels.
[0024] The positioning channel 11 has a lubrication groove 14 on its side wall, which is filled with lubricating oil. During installation, lubricating oil is first added to the lubrication groove, and then the positioning sleeve is placed over the firing pin. During the movement of the firing pin, the lubricating oil is automatically coated on the outer wall of the firing pin and the inner seal, providing lubrication and reducing friction between the firing pin and the inner seal. This not only makes the firing pin move more smoothly but also protects the inner seal, preventing wear and deformation, extending its service life, and preventing air leakage.
[0025] More specifically, the positioning channel 11 has an inner sealing groove 12 on its side wall, and the inner sealing element 2 is embedded in the inner sealing groove 12. The positioning sleeve 1 has an outer sealing groove 13 on its outer side wall, and the outer sealing element 3 is embedded in the outer sealing groove 13. During installation, the inner and outer sealing elements are installed on the positioning sleeve through the inner and outer sealing grooves, respectively. Lubricating oil is then added to the lubrication groove, and the positioning sleeve is then fitted over the firing pin. Finally, the entire assembly is installed inside the gun body. The inner and outer sealing grooves limit the movement of the inner and outer sealing elements, preventing them from easily rolling off the positioning sleeve under external force.
[0026] Preferably, the firing pin auxiliary assembly further includes a limiting member 4, which restricts the movement of the positioning sleeve 1. To fix the positioning sleeve to the gun body and allow the firing pin to move relative to the positioning sleeve while preventing the firing pin from moving and damaging the positioning sleeve, the limiting member is respectively engaged with the gun body and the positioning sleeve. The limiting member 4 is a cotter pin.
[0027] It should be noted that the outer sealing element 3 and the inner sealing element 2 are sealing rings, and the outer sealing element 3 and the inner sealing element 2 are made of rubber or silicone. The inner sealing groove 12, the outer sealing groove 13 and the lubrication groove 14 are all arranged along the circumference of the positioning sleeve 1.
[0028] Accordingly, this utility model also discloses a nail gun, including a gun body 5, a firing pin 10 and the aforementioned firing pin auxiliary assembly. The firing pin 10 and the firing pin auxiliary assembly are both installed inside the gun body 5. The gun body 5 is fixedly connected to the positioning sleeve 1, and the firing pin 10 can move relative to the positioning sleeve 1.
[0029] The impact pin auxiliary assembly includes a positioning sleeve 1, an inner seal 2, and an outer seal 3. The positioning sleeve 1 and the inner seal 2 are both sleeved on the outside of the impact pin 10. The inner seal 2 is located between the positioning sleeve 1 and the impact pin 10. The positioning sleeve 1 abuts against the impact pin 10 through the inner seal 2. The outer seal 3 is sleeved on the outside of the positioning sleeve 1.
[0030] The space between the positioning sleeve 1 and the firing pin 10 is filled with lubricating oil.
[0031] This utility model's firing pin auxiliary assembly uses a positioning sleeve to limit and support the movement of the firing pin, effectively restricting its trajectory. Furthermore, the elastic force generated by the inner and outer seals not only provides cushioning but also ensures that the axes of the positioning sleeve and the firing pin are aligned, reducing deviations from their intended path during movement. This prevents friction or jamming between the firing pin and the gun body or other components, ensuring normal operation, extending the service life of the firing pin and other parts, and reducing maintenance costs. Simultaneously, the inner seal seals the gap between the firing pin and the positioning sleeve, while the outer seal seals the gap between the positioning sleeve and the gun body, preventing air leakage.
[0032] Furthermore, lubricating oil is filled between the positioning sleeve and the firing pin, which provides excellent lubrication for the inner seal and the firing pin. This prevents the inner seal from wearing and deforming due to friction with the firing pin after prolonged use, thus preventing air leakage, extending service life, and reducing maintenance costs.
[0033] Specifically, the gun body 5 has an air chamber 51 and a firing pin channel 52, which are connected. The positioning sleeve 1 is fixedly installed in the firing pin channel 52. The positioning sleeve 1 abuts against the inner wall of the firing pin 10 through an outer sealing member 3. The nail gun drives the firing pin to move back and forth by introducing or venting air into the air chamber, thereby achieving nail driving. Since the air chamber and the firing pin channel are connected, to prevent air leakage, the inner sealing member seals the gap between the firing pin and the positioning sleeve, and the outer sealing member seals the gap between the positioning sleeve and the gun body. That is to say, one end of the firing pin extends into the air chamber, the middle part passes through the positioning sleeve placed in the firing pin channel, and the other end extends into the clamp to drive the clamp to achieve nail driving.
[0034] Specifically, the positioning sleeve 1 is provided with positioning channels 11 extending through its two ends, and the positioning sleeve 1 is fitted over the firing pin 10 through the positioning channels 11. That is, the firing pin 10 passes through the positioning sleeve 1, and the firing pin portion is placed inside the positioning channels. The firing pin moves back and forth relative to the positioning sleeve within the positioning channels.
[0035] The positioning channel 11 has a lubrication groove 14 on its side wall, which is filled with lubricating oil. During installation, lubricating oil is first added to the lubrication groove, and then the positioning sleeve is placed over the firing pin. During the movement of the firing pin, the lubricating oil is automatically coated on the outer wall of the firing pin and the inner seal, providing lubrication and reducing friction between the firing pin and the inner seal. This not only makes the firing pin move more smoothly but also protects the inner seal, preventing wear and deformation, extending its service life, and preventing air leakage.
[0036] More specifically, the positioning channel 11 has an inner sealing groove 12 on its side wall, and the inner sealing element 2 is embedded in the inner sealing groove 12. The positioning sleeve 1 has an outer sealing groove 13 on its outer side wall, and the outer sealing element 3 is embedded in the outer sealing groove 13. During installation, the inner and outer sealing elements are installed on the positioning sleeve through the inner and outer sealing grooves, respectively. Lubricating oil is then added to the lubrication groove, and the positioning sleeve is then fitted over the firing pin. Finally, the entire assembly is installed inside the gun body. The inner and outer sealing grooves limit the movement of the inner and outer sealing elements, preventing them from easily rolling off the positioning sleeve under external force.
[0037] Furthermore, the firing pin auxiliary assembly also includes a limiting member 4, which is used to restrict the movement of the positioning sleeve 1. This is to fix the positioning sleeve to the gun body, allowing the firing pin to move relative to the positioning sleeve while preventing the firing pin from moving and damaging the positioning sleeve.
[0038] More preferably, the gun body 5 is provided with a positioning groove 53, and the outer wall of the positioning sleeve 1 is provided with a limiting groove 15, with the positioning groove 53 and the limiting groove 15 correspondingly arranged; the limiting member 4 is respectively embedded in the positioning groove 53 and the limiting groove 15. Both the positioning groove 53 and the limiting groove 15 penetrate through both sides of the gun body 5. During installation, the limiting member is inserted from outside the gun body into the gun body and embedded in the positioning groove and the limiting groove, so that the limiting member is respectively locked onto the gun body and the positioning sleeve, thereby fixing the positioning sleeve within the firing pin channel and preventing it from moving due to the movement of the firing pin. The limiting member is a cotter pin.
[0039] In summary, this utility model provides a firing pin auxiliary component and a nail gun that effectively limits the firing pin and prevents air leakage.
[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A firing pin auxiliary component, characterized in that, It includes a positioning sleeve, an inner seal, and an outer seal. The positioning sleeve and the inner seal are both sleeved around the firing pin. The inner seal is located between the positioning sleeve and the firing pin. The positioning sleeve abuts against the firing pin through the inner seal. The outer seal is sleeved around the positioning sleeve. The space between the positioning sleeve and the firing pin is filled with lubricating oil.
2. The firing pin auxiliary assembly as described in claim 1, characterized in that, The positioning sleeve is provided with a positioning channel that passes through both ends of its face, and the positioning sleeve is sleeved on the outside of the firing pin through the positioning channel; The positioning channel has a lubrication groove on its side wall, and the lubrication groove is filled with lubricating oil.
3. The firing pin auxiliary assembly as described in claim 2, characterized in that, The positioning channel sidewall is provided with an inner sealing groove, and the inner sealing element is embedded in the inner sealing groove.
4. The firing pin auxiliary assembly as described in claim 1, characterized in that, The outer wall of the positioning sleeve is provided with an outer sealing groove, and the outer sealing element is embedded in the outer sealing groove.
5. The firing pin auxiliary assembly as described in any one of claims 1-4, characterized in that, The firing pin auxiliary assembly also includes a limiting member, which is used to restrict the movement of the positioning sleeve.
6. A nail gun, characterized in that, The gun body includes a firing pin, a firing pin, and a firing pin auxiliary assembly as described in claim 1. The firing pin and the firing pin auxiliary assembly are both installed in the gun body. The gun body and the positioning sleeve are fixedly connected, and the firing pin is movable relative to the positioning sleeve.
7. The nail gun as described in claim 6, characterized in that, The gun body is provided with an air chamber and a firing pin channel, the air chamber and the firing pin channel are connected, and the positioning sleeve is fixedly installed in the firing pin channel; the positioning sleeve abuts against the inner wall of the firing pin through an outer sealing element.
8. The nail gun as described in claim 6, characterized in that, The positioning sleeve is provided with a positioning channel that passes through both ends of its face, and the positioning sleeve is sleeved on the outside of the firing pin through the positioning channel; The positioning channel has a lubrication groove on its side wall, and the lubrication groove is filled with lubricating oil.
9. The nail gun as described in claim 8, characterized in that, The positioning channel sidewall is provided with an inner sealing groove, and the inner sealing element is embedded in the inner sealing groove; The outer wall of the positioning sleeve is provided with an outer sealing groove, and the outer sealing element is embedded in the outer sealing groove.
10. The nail gun as described in any one of claims 6-9, characterized in that, The firing pin auxiliary assembly also includes a limiting member, which is used to restrict the movement of the positioning sleeve; The gun body is provided with a positioning groove, and the outer wall of the positioning sleeve is provided with a limiting groove. The positioning groove and the limiting groove are respectively provided; the limiting member is embedded in the positioning groove and the limiting groove.