Plastic bullet

Abstract

The utility model discloses a plastic bullet which comprises a plastic bullet shell and a plastic bullet head, and the plastic bullet head is arranged at the front end of the plastic bullet shell. The plastic cartridge case comprises an ammunition case and a primer base, the primer base is arranged at the rear end of the ammunition case, a connecting sleeve is arranged at the front end of the primer base, a clamping hook is arranged on the inner side wall of the connecting sleeve, the rear end of the ammunition case extends backwards to form a rear sleeve, a clamping groove is formed in the outer side of the rear sleeve, and the clamping hook is arranged in the clamping groove. The connecting sleeve is sleeved outside the rear sleeve, and the clamping hook is clamped in the clamping groove. The plastic bullet has the advantages of being easy to machine, firm in connection, low in cost and convenient to assemble.

Description

Technical Field

[0001] The utility model relates to a bullet, in particular to a plastic bullet. Background Art

[0002] Existing bullets are all made of metal materials, which generally only include a shell and a bullet, and the shell is usually an integrated structure. However, the processing technology of the metal shell is complicated, the processing cost is very high, and the energy consumption is large, and it is very inconvenient to assemble. Utility Model Content

[0003] The purpose of the utility model is to provide a plastic bullet which is simple to process, firmly connected, low in cost and convenient to assemble.

[0004] In order to achieve the above-mentioned purpose, the plastic bullet provided by the utility model includes a plastic cartridge case and a plastic bullet, wherein the plastic bullet is arranged at the front end of the plastic cartridge case; the plastic cartridge case includes an ammunition shell and a primer seat, wherein the primer seat is arranged at the rear end of the ammunition shell, the front end of the primer seat is provided with a connecting sleeve, the inner side wall of the connecting sleeve is provided with a locking hook, the rear end of the ammunition shell extends backward out of a rear sleeve, the outer side of the rear sleeve is provided with a locking groove, the connecting sleeve is sleeved on the outside of the rear sleeve, and the locking hook is engaged with the locking groove.

[0005] Compared to the prior art, the present invention provides a rear sleeve at the rear end of the cartridge case, a snap-fit ​​groove on the outside of the rear sleeve, and a snap-fit ​​hook on the outside of the primer housing's connecting sleeve. The snap-fit ​​hook engages with the snap-fit ​​groove, thereby firmly and stably connecting the primer housing and the cartridge case. Since the cartridge case and primer housing are separate, the single structure is simplified, making mold opening easier and therefore very simple to manufacture and reducing processing costs. Furthermore, during assembly, the cartridge case and primer housing only need to be axially aligned, and then the rear sleeve inserted into the connecting sleeve to automatically engage the snap-fit ​​hook with the snap-fit ​​groove, making assembly very convenient and quick. Furthermore, since gunpowder instantly ignites within the cartridge case, the gas pressure causes the rear sleeve to expand outward. By inserting the rear sleeve into the connecting sleeve, the connecting sleeve and the rear sleeve expand simultaneously, thereby preventing the snap-fit ​​hook from disengaging from the snap-fit ​​groove, ensuring that the primer housing and the cartridge case remain stably connected after firing, thereby preventing plastic cartridge cases from becoming stuck in the chamber.

[0006] Preferably, a guide slope is provided on the side of the engaging hook facing the ammunition shell. By providing the guide slope, the primer shell and the ammunition shell can be quickly aligned and assembled during assembly, thereby improving the convenience of assembly.

[0007] Preferably, the inner diameter of the connecting sleeve is equal to the outer diameter of the rear sleeve.

[0008] Preferably, the rear end face of the primer seat is provided with a containing cavity for accommodating the primer, and an annular baffle is arranged between the containing cavity and the inner part of the connecting sleeve, and a fire hole is arranged in the middle part of the annular baffle, and the containing cavity and the inner part of the connecting sleeve are communicated through the fire hole.

[0009] Preferably, the outer periphery of the primer seat is annularly provided with a shell ejection groove.

[0010] Preferably, the root part of the rear sleeve connected with the ammunition shell is provided with a limiting face, and the front end face of the connecting sleeve abuts against the limiting face when the connecting sleeve is sleeved on the rear sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the structure diagram of the plastic bullet of the utility model.

[0012] Figure 2 is the structure diagram of the bullet shell of the plastic bullet of the utility model.

[0013] Figure 3 is the structure diagram of the ammunition shell of the plastic bullet of the utility model.

[0014] Figure 4 is the structure diagram of the primer seat of the plastic bullet of the utility model. DETAILED DESCRIPTION

[0015] In order to explain the technical content, structural features and effects of the utility model in detail, the following will be described in detail in combination with the embodiments and the drawings.

[0016] As shown in Figures 1 to 3 the utility model discloses plastic bullet 100 including plastic bullet shell 1 and plastic bullet head 2, plastic bullet head 2 is arranged at the front end of plastic bullet shell 1, plastic bullet shell 1 includes bullet shell 11, ammunition shell 12 and primer seat 3, bullet shell 11 and ammunition shell 12 can be integrally formed structure, also can be detachable structure, in the embodiment, bullet shell 11 and ammunition shell 12 are detachable structure.Specifically, the front end of ammunition shell 12 extends axially and projects outwardly and rearwardly and extends out of the inclined barb 122, the rear end of bullet shell 11 is provided with a containing through hole 111 with a diameter larger than the inner diameter of bullet shell 11, and the inner wall of the containing through hole 111 is recessed and provided with a hook groove 112, the rear end of bullet shell 11 is sleeved on the outer side of front sleeve 121, front sleeve 121 is contained in containing through hole 111, and inclined barb 122 is clamped in hook groove 112.

[0017] Please refer to Figure 1 and Figure 2The oblique barb 122 is provided with a guide slope 123 on one side of the bullet shell 11. By providing the guide slope 123, the bullet shell 11 and the ammunition shell 12 can be quickly aligned and assembled during assembly, thereby improving the convenience of assembly.

[0018] See also Figure 1 The inner wall of the bullet shell 11 is provided with an inwardly protruding engaging ring 112, and the outer wall of the plastic bullet 2 is circumferentially provided with an annular recess 21, and the engaging ring 112 engages in the annular recess 21. By utilizing the engaging ring 112 and the annular recess 21, the plastic bullet 2 can be stably engaged with the front end of the plastic bullet shell 1, ensuring the structural stability of the plastic bullet 100.

[0019] The outer diameter of the front sleeve 121 is equal to the inner diameter of the accommodating through hole 111. The outer diameter of the rear end surface of the bullet shell 11 is equal to the outer diameter of the ammunition shell 12, so that the outer surfaces of the two remain flush after connection.

[0020] See also Figure 1 、 Figure 3 and Figure 4 The primer seat 3 is located at the rear end of the ammunition case 12. A connecting sleeve 31 is provided at the front end of the primer seat 3. The inner sidewall of the connecting sleeve 31 is provided with a locking hook 32. A rear sleeve 124 extends rearward from the rear end of the ammunition case 12. A locking groove 125 is provided on the outer side of the rear sleeve 124. The connecting sleeve 31 fits over the rear sleeve 124, and the locking hook 32 engages with the locking groove 125. A stopper surface 126 is provided at the base where the rear sleeve 124 connects to the ammunition case 12. When the connecting sleeve 31 fits over the rear sleeve 124, the front end surface of the connecting sleeve 31 abuts against the stopper surface 126. The locking hook 32 has a guide slope 321 on the side facing the ammunition case 12. The provision of the guide slope 127 allows for quick alignment and assembly of the primer case and ammunition case 12, improving assembly convenience.

[0021] The inner diameter of the connecting sleeve 31 is equal to the outer diameter of the rear sleeve 124. The outer diameter of the front end of the connecting sleeve 31 is equal to the outer diameter of the rear end of the ammunition shell, so that the outer side walls of the two remain flush after connection.

[0022] See also Figure 4 The rear end surface of the primer holder 3 is provided with a chamber 33 for accommodating the primer. An annular baffle 34 is provided between the chamber 33 and the interior of the connecting sleeve 31. A ignition hole 35 is provided in the middle of the annular baffle 34. The chamber 33 communicates with the interior of the connecting sleeve 31 through the ignition hole 35. A shell-removing groove 36 is provided in an annular manner on the outer periphery of the primer holder 3.

[0023] Compared with the prior art, the present invention divides the plastic cartridge case 1 into a bullet case 11, an ammunition case 12 and a primer 3, provides a front sleeve 121 at the front end of the ammunition case 12, opens a receiving hole 111 at the rear end of the bullet case 11, and makes the front sleeve 121 sleeved in the receiving hole 111. At the same time, an oblique hook 122 is provided on the outer side of the front sleeve 121, and a hook groove 112 is provided on the inner wall of the receiving hole 111, so that the oblique hook 122 is engaged in the hook groove 112, thereby making the bullet case 11 and the ammunition case 12 can be firmly and stably connected. Since the cartridge case 12 is separated from the bullet case 11, the single structure is simplified and mold opening is easy, thus making it very simple to process and having very low processing costs. Moreover, during assembly, it is only necessary to axially align the cartridge case 12 with the bullet case 11 and then insert the front sleeve 121 into the accommodating through hole 111 so that the oblique barb 122 automatically engages with the hook groove 112, making assembly very convenient and quick. In addition, due to the instantaneous combustion of gunpowder in the cartridge case 12, the air pressure causes the front sleeve 121 to expand outward. By inserting the front sleeve 121 into the accommodating through hole 111, the front sleeve 121 pushes the bullet case 11 to expand simultaneously, thereby preventing the oblique barb 122 from disengaging from the hook groove 112, ensuring that the bullet case 11 and the cartridge case 12 remain stably connected after firing the bullet, thereby effectively preventing the plastic cartridge case 1 from becoming stuck in the chamber. At the same time, by providing a rear sleeve 124 at the rear end of the cartridge case 12, providing an engaging groove 125 on the outside of the rear sleeve 124, and providing an engaging hook 32 on the outside of the connecting sleeve 31 of the primer seat 3, the engaging hook 32 engages with the engaging groove 125, thereby firmly and stably connecting the primer seat 3 and the cartridge case 12. This makes the manufacturing process very simple, the assembly is easy, and the cost is low. Moreover, at the moment of gunpowder explosion, the engaging hook 32 will also firmly engage with the engaging groove 125, ensuring the stability of the connection between the primer seat 3 and the cartridge case 12.

[0024] The structure of the primer 3 involved in the plastic bullet 100 of the present invention is well known to those skilled in the art and will not be described in detail here.

[0025] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A plastic bullet, characterized by: The invention comprises a plastic cartridge case and a plastic bullet, wherein the plastic bullet is arranged at the front end of the plastic cartridge case; the plastic cartridge case comprises an ammunition shell and a primer seat, wherein the primer seat is arranged at the rear end of the ammunition shell, a connecting sleeve is provided at the front end of the primer seat, a locking hook is provided on the inner side wall of the connecting sleeve, the rear end of the ammunition shell extends backward to form a rear sleeve, a locking groove is provided on the outer side of the rear sleeve, the connecting sleeve is sleeved on the outside of the rear sleeve, and the locking hook is engaged with the locking groove.

2. The plastic bullet according to claim 1, wherein: A guiding slope is provided on one side of the locking hook facing the ammunition shell.

3. The plastic bullet according to claim 1, wherein: The inner diameter of the connecting sleeve is equal to the outer diameter of the rear sleeve.

4. The plastic bullet according to claim 1, wherein: The rear end face of the primer seat is provided with a receiving cavity for accommodating the primer, an annular baffle is provided between the receiving cavity and the interior of the connecting sleeve, an ignition hole is opened in the middle of the annular baffle, and the receiving cavity and the interior of the connecting sleeve are communicated through the ignition hole.

5. The plastic bullet according to claim 1, wherein: The outer periphery of the primer seat is provided with a shell extraction groove in an annular manner.

6. The plastic bullet according to claim 1, wherein: A limiting surface is provided at the root portion where the rear sleeve is connected to the ammunition shell. When the connecting sleeve is sleeved on the rear sleeve, the front end surface of the connecting sleeve abuts against the limiting surface.

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