Nail gun convenient to assemble

Abstract

The nail gun convenient to assemble comprises an air cylinder located in a shell, a piston is arranged in the air cylinder, and a firing pin extending forwards is arranged in the center of the front end of the piston. The front end of the air cylinder is fixedly connected with a retainer, a driving wheel for driving the firing pin is supported on the retainer, the retainer is fixed on the shell, the retainer and the guide frame are axially communicated, at least part of the guide frame is axially inserted and fixed in the retainer, and the front end of the guide frame is connected with the nailing seat. The nailing device further comprises a connecting frame which is arranged between the guide frame and the nailing base, and the front end of the guide frame is connected with the nailing base through the connecting frame. A guide frame flange is arranged at the front end of the guide frame, abuts against the front end face of the retainer and is connected with the nailing base through a connecting frame. According to the utility model, the error in the movement of the firing pin can be effectively reduced, and the stability and reliability of equipment under long-time operation are ensured.

Description

Technical Field

[0001] The utility model relates to a nail gun which is easy to assemble and belongs to the technical field of power tools. Background Art

[0002] In home renovations and everyday life, securing one object to another is a common task. Nail guns, due to their convenience and ease of use, have become the tool of choice for many users. One of the core components of a nail gun is the striker, which reciprocates along its axis to strike the fastener. Therefore, the striker's axial positioning accuracy is directly related to the overall stability and performance of the nail gun.

[0003] In existing nail gun designs, such as the internal transmission structure shown in patent WO2021 / 113570A1, the striker's guide block is typically radially fixed to the frame. This design places extremely strict requirements on the radial fit between the guide block and the frame, increasing manufacturing and assembly costs. To improve production efficiency and reduce costs, it is necessary to develop a new guide mechanism that can ensure precise movement of the striker while simplifying the production process and reducing the precision requirements of the parts. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems existing in the prior art and provide a nail gun that is easy to assemble, has a simple structure, and is easy to assemble.

[0005] In order to solve the above technical problems, the utility model provides a nail gun that is easy to assemble, including a cylinder located in a shell, a piston is provided in the cylinder, and a firing pin extending forward is provided at the front center of the piston; the front end of the cylinder is fixedly connected to a retaining frame, and a driving wheel that drives the firing pin is supported on the retaining frame, and the retaining frame is fixed on the shell, and also includes a guide frame and a connecting frame, the retaining frame and the guide frame are axially penetrated, the guide frame is at least partially axially inserted and fixed in the retaining frame, and the front end of the guide frame is connected to the nailing seat.

[0006] Furthermore, it also includes a connecting frame, which is arranged between the guide frame and the nailing seat, and the front end of the guide frame is connected to the nailing seat through the connecting frame.

[0007] Furthermore, a guide frame flange is provided at the front end of the guide frame, the guide frame flange abuts against the front end surface of the retaining frame, and the guide frame flange is connected to the nailing seat through the connecting frame.

[0008] Furthermore, a nail seat flange is provided at the rear end of the nail seat, and the fastening screws pass through the axial holes on the nail seat flange, the connecting frame, and the guide frame flange in sequence and are screwed into the screw holes on the front end face of the retaining frame, so that the nail seat, the connecting frame, the guide frame and the retaining frame are firmly connected.

[0009] Furthermore, the guide frame is provided with an avoidance cavity on a side close to the driving wheel, and the side teeth of the striker are engaged with the driving wheel in the avoidance cavity.

[0010] Furthermore, a protruding radial positioning block is provided on the side wall of the middle section of the guide frame, and the radial positioning block is embedded in the corresponding limiting groove of the retaining frame.

[0011] Furthermore, the limiting groove extends along the movement direction of the striker.

[0012] Furthermore, the axial holes of the retaining frame, the guide frame, the connecting frame and the nailing seat are all cylindrical.

[0013] Furthermore, a circular boss is provided on the rear end surface of the nailing seat, and the circular boss is embedded in the front port of the connecting frame.

[0014] Compared with the prior art, the present invention has achieved the following beneficial effects:

[0015] 1. Precise Control of the Strike Pin's Movement: By utilizing cylindrical surface finishing and precision assembly techniques between components, this design significantly improves the control accuracy of the striker's trajectory. Compared to traditional machining and assembly methods, this innovative approach effectively reduces errors in the striker's movement, ensuring the stability and reliability of the device over long periods of operation.

[0016] 2. Improved machining precision and production efficiency: Machining cylindrical surfaces is not only highly precise but also relatively easy to achieve. This means that while ensuring product quality, it can also effectively shorten machining cycles, reduce production costs, and improve production efficiency. Furthermore, high-precision cylindrical surfaces help reduce adjustments during assembly, further improving overall assembly efficiency.

[0017] 3. Enhanced sealing performance and extended service life: Leveraging a unique "barrel-shaped" structural design and precise housing fit, this solution achieves a nearly complete seal within the device's internal structure. This feature is crucial for preventing the intrusion of foreign matter such as dust and moisture, and preventing internal component failures such as seizure due to contamination. Furthermore, excellent sealing effectively reduces evaporation or leakage of internal grease, thereby maintaining optimal lubrication within the device and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are only provided for reference and illustration and are not intended to limit the present invention.

[0019] Figure 1 This is the main view of the utility model without the shell;

[0020] Figure 2 An exploded view of the present invention;

[0021] Figure 3 A three-dimensional diagram of the retainer in the present invention;

[0022] Figure 4 The three-dimensional guide frame of the utility model Figure 1 ;

[0023] Figure 5 The three-dimensional guide frame of the utility model Figure 2 ;

[0024] Figure 6 This is a rear view of the utility model with half of the shell removed;

[0025] Figure 7 for Figure 6 Stereoscopic image.

[0026] In the figure: 1. Cylinder 2. Piston, 3. Strike pin, 4. Cage, 4a. Limiting groove, 5. Guide frame, 5a. Guide frame flange, 5b. Avoidance cavity, 5c. Radial positioning block, 6. Connecting frame, 7. Nail seat, 7a. Nail seat flange, 8. Fastening screw. DETAILED DESCRIPTION

[0027] In the following description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not mean that the device must have a specific direction.

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] like Figures 1 to 6As shown, the nail gun of the utility model, which is easy to assemble, includes a cylinder 1 located in a housing, a piston 2 is provided in the cylinder 1, and a striker 3 extending forward is provided at the front center of the piston 2; the front end of the cylinder 1 is fixedly connected to a retaining frame 4, and a driving wheel that drives the striker 3 is supported on the retaining frame 4, which is fixed to the housing, and further includes a guide frame 5 and a connecting frame 6. The retaining frame 4, the guide frame 5 and the connecting frame 6 are all axially connected, and the guide frame 5 is at least partially axially inserted and fixed in the retaining frame 4. The front end of the guide frame 5 is connected to the nailing seat 7 through the connecting frame 6. The front end of the guide frame 5 is provided with a guide frame flange 5a, which abuts against the front end surface of the retaining frame 4, and the guide frame flange 5a is connected to the nailing seat 7 through the connecting frame 6. The rear end of the nailing seat 7 is provided with a nailing seat flange 7a, and the fastening screws 8 pass through the axial holes on the nailing seat flange 7a, the connecting frame 6, and the guide frame flange 5a in sequence and are screwed into the screw holes on the front end surface of the retaining frame 4, so that the nailing seat 7, the connecting frame 6, the guide frame 5 and the retaining frame 4 are fastened together. By socketing several parts together, it is possible to achieve an almost complete seal of the internal structure of the equipment. This feature is crucial for preventing the intrusion of foreign matter such as external dust and moisture, and avoiding malfunctions such as jamming of internal components due to contamination. At the same time, good sealing can also effectively reduce the evaporation or leakage of internal grease, thereby maintaining the good lubrication state of the internal components of the equipment and extending the service life of the product.

[0031] like Figure 4 and Figure 5 As shown, the guide frame 5 is provided with an avoidance cavity 5b on the side close to the driving wheel, and the side teeth of the striker 3 mesh with the driving wheel at the avoidance cavity 5b. The middle section side wall of the guide frame 5 is provided with a protruding radial positioning block 5c, and the radial positioning block 5c is embedded in the corresponding limiting groove 4a of the retaining frame 4. The limiting groove 4a extends along the movement direction of the striker 3. The utility model realizes the positioning between the guide frame, the connecting frame, the retaining frame and the nailing seat through the axial hole, and limits the freedom of the guide frame and the retaining frame in the movement direction of the striker through the radial positioning block and the limiting groove. The above components are linked together to achieve precise positioning of the movement trajectory of the striker.

[0032] The axial holes of the retaining frame 4, the guide frame 5, the connecting frame 6 and the nailing seat 7 are all cylindrical. The rear end face of the nailing seat 7 is provided with a circular boss, which is embedded in the front end of the connecting frame 6. The processing of the cylindrical surface is not only of high precision, but also relatively easy to achieve. This means that while ensuring product quality, it can also effectively shorten the processing cycle, reduce production costs and improve production efficiency. In addition, the high-precision cylindrical surface also helps to reduce the adjustment workload during the assembly process, further improving the overall assembly efficiency. The utility model can not only ensure the precise movement of the firing pin, but also simplify the production process and reduce the requirements for the precision of parts.

[0033] The above description is only a preferred embodiment of the present invention, which shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It does not limit the scope of patent protection of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. In addition to the above embodiments, the present invention may have other implementation methods without departing from the spirit and scope of the present invention. The present invention may also have various changes and improvements. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the attached claims and their equivalents. The technical features not described in the present invention can be achieved by or using existing technologies, and will not be described here.

Claims

1. A nail gun that is easy to assemble, comprising a cylinder located within a housing, a piston disposed within the cylinder, a striker extending forwardly disposed at the center of the front end of the piston; a retainer fixedly connected to the front end of the cylinder, a drive wheel for driving the striker supported on the retainer, and the retainer fixed to the housing, characterized in that: It also includes a guide frame and a connecting frame. The retaining frame and the guide frame are axially connected. The guide frame is at least partially axially inserted and fixed in the retaining frame. The front end of the guide frame is connected to the nailing seat.

2. The nail gun according to claim 1, characterized in that: It also includes a connecting frame, which is arranged between the guide frame and the nailing seat, and the front end of the guide frame is connected to the nailing seat through the connecting frame.

3. The easy-to-assemble nail gun according to claim 1, characterized in that: A guide frame flange is provided at the front end of the guide frame. The guide frame flange abuts against the front end surface of the retaining frame, and the guide frame flange is connected to the nailing seat through the connecting frame.

4. The nail gun according to claim 1, wherein: The rear end of the nailing seat is provided with a nailing seat flange, and the fastening screws pass through the axial holes on the nailing seat flange, the connecting frame and the guide frame flange in sequence and are screwed into the screw holes on the front end surface of the retaining frame, so that the nailing seat, the connecting frame, the guide frame and the retaining frame are fastened together.

5. The easy-to-assemble nail gun according to claim 1, characterized in that: The guide frame is provided with an avoidance cavity on a side close to the driving wheel, and the side teeth of the striker are engaged with the driving wheel in the avoidance cavity.

6. The easy-to-assemble nail gun according to claim 1, characterized in that: A protruding radial positioning block is provided on the side wall of the middle section of the guide frame, and the radial positioning block is embedded in the corresponding limiting groove of the retaining frame.

7. The easy-to-assemble nail gun according to claim 6, characterized in that: The limiting groove extends along the movement direction of the striker.

8. The easy-to-assemble nail gun according to claim 1, characterized in that: The axial holes of the retaining frame, the guide frame, the connecting frame and the nailing seat are all cylindrical.

9. The easy-to-assemble nail gun according to claim 1, characterized in that: A circular boss is provided on the rear end surface of the nailing seat, and the circular boss is embedded in the front port of the connecting frame.

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