CN2182034Y - Nailer piston striker - Google Patents

Abstract

The utility model relates to a piston striker of a nailing machine, which mainly forms an enlarged T-shaped serrated head at the fixed end of the striker, and enables the fixed end of the striker to be integrally connected to the inside of the piston when the piston is molded, so as to form a piston striker assembly suitable for mass production, thereby achieving the purpose of simplifying the processing and assembly process, reducing costs, and improving the overall structural strength.

Description

The utility model relates to the piston striker of a nailing machine, especially a design that improves the structure of the piston striker of a pneumatic nailer, and makes the striker integrally connected to the inside of the piston when the piston is molded. In this way, a piston striker with excellent structural strength can be formed which is easy to assemble, can reduce production cost.

The piston striker of the early nailing machine is roughly shown in Figure 1. Its structure is mainly composed of the striker 10, the chuck handle 11 and the piston base 12. Among them, one end of the striker 1 has a lock hole 13, and The end of the collet handle 11 can be inserted into the clamp groove 14 at the lower end of the collet handle 11, and connected through a spring pin 15. The middle section of the collet handle 11 has an external thread 16, which can be used in the piston base 12. The screw holes 17 are locked, and the outer groove 18 of the piston base 12 can be sleeved with an O-ring 19, thereby forming the piston striker assembly.

Although the above-mentioned known structure has the basic function of the piston striker, but due to its complex component structure, processing and assembly are relatively troublesome and the production cost is relatively high. In order to overcome this shortcoming, someone developed another striker-piston connection structure, as shown in Figure 2 As shown, the striker-piston connection structure is mainly formed with an embedding portion 21 at one end of the piston 20, and the bottom end of the embedding portion 21 is provided with a clamping groove 22, which can be inserted into one end of the striker 23, and the outer end of the embedding portion 21 is Covered with a sleeve 24, the sleeve 24 and the holding part 21 are correspondingly provided with lock holes for the pin shaft 25 to pass through to pin the striker 23. Although this improved striker-piston connection structure is earlier than the early piston striker structure It is simple and practical, and has been granted a patent (Notice No. 192777). However, in its structure, the piston still needs to be provided with a clamping groove, a pin hole and a sleeve, and both the sleeve and the striker also need to be provided with a pin hole, and the pin shaft is used to place the Piston and striker pin joint combination, therefore, the assembly process of the striker-piston connection structure is still complicated and cumbersome, and the assembly precision of each component must be good, otherwise it will easily produce products with poor structural strength, so it is not perfect and practical.

The main purpose of this utility model is to provide a striker with a T-shaped sawtooth head, and to enable the striker to be integrally connected to the inside of the piston when the piston is molded, thereby simplifying the assembly of the striker and the piston of the nailing machine Practical, making it suitable for mass production, thereby reducing production costs and improving the stability of product structural strength.

According to the utility model, a piston striker of a nailing machine is provided, which is composed of a striker and a piston, wherein the striker can be directly punched into a long strip, and is connected with the piston to be arranged in the piston chamber of the nailing machine; its feature is: the striker An enlarged head is formed at the fixed end connected to the piston, and the striker can be placed into the molding mold of the piston, and the piston is molded to make the enlarged head of the striker directly contact with the piston body Connected and formed together; it is also characterized in that the enlarged head of the striker can be T-shaped, and the striker is formed with sawtooth grooves on both sides of the sheet close to the T-shaped head, so that the T-shaped head is connected to the sawtooth groove Inside the piston body to enhance the strength of the striker and piston structure.

To facilitate a clearer understanding of the structural features, purposes and effects of the present utility model, now in conjunction with the accompanying drawings, the detailed description is as follows:

Figure 1 is an exploded view of the structure of a known product.

Fig. 2 is the structural sectional view of another known product.

Fig. 3 is a structural exploded view of the utility model.

Fig. 4 is a structural sectional view of the utility model.

Fig. 5 is the implementation schematic diagram of the present utility model.

Please refer to Figures 3 and 4, the piston striker structure of the nailing machine of the present utility model is mainly composed of the striker 3 and the piston 4, wherein the striker 3 can be directly stamped into a long strip, and connected with the piston 4 to be set on the nailing In the piston chamber 5 of the machine (as shown in Figure 5), the pneumatic nailing operation can be realized.

The improvement of the striker 3 of the present utility model is that the fixed end connected with the piston 4 is formed with an enlarged T-shaped head 30, and the striker 3 is formed with sawtooth on both sides of the sheet body close to the T-shaped head 30. groove 31, and then put the striker 3 into the molding die of the piston 4, and cooperate with the molding of the piston 4, so that the head 30 of the striker 3 and the sawtooth groove 31 are integrally connected to the inside of the piston 4.

The above-mentioned improved assembly of piston 4 and striker 3 is made by direct punching of striker 3 without additional pin holes, and can be directly integrally connected with piston 4. Therefore, piston 4 does not need additional processing for assembly with striker 3. Therefore, the purpose of being suitable for mass production and reducing processing and assembly operations can be achieved to reduce production costs, and the quality of the piston striker assembly can be more refined and stable; in addition, due to the enlarged head 30 and its serrated teeth The groove 31 is buried inside the body of the piston 4. Therefore, its overall structure is not only easy to produce, but also has better overall structural strength. It can be used for a long time without any risk of loosening, so the practical effect of the product can be improved.

Claims (2)

1. A piston striker of a nailing machine, which is composed of a striker and a piston, wherein the striker can be directly punched into a long strip, and connected with the piston to be set in the piston chamber of the nailer; The fixed end of the connection is formed with an enlarged head, and the striker can be put into the molding mold of the piston, and cooperates with the molding of the piston, so that the enlarged head of the striker is directly connected with the piston body. 2. The piston striker of a nailing machine according to claim 1, wherein the enlarged head of the striker can be T-shaped, and the striker is formed with sawtooth grooves on both sides of the sheet body close to the T-shaped head, In this way, the T-shaped head and the sawtooth groove are connected to the inside of the piston body, so as to enhance the strength of the striker and the piston structure.

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