Combined casing for shotgun

Abstract

The utility model discloses a combined casing for a shotgun, which is high in material utilization rate and low in cost on the premise of ensuring required strength. A combined casing for a shotgun comprises a connecting sleeve body, a left casing wall, a right casing wall, a tailstock and a connecting base which are arranged in a split mode, the connecting sleeve body is of an inverted-U-shaped structure, the lower end portions of the two sides of the connecting sleeve body are connecting plates, and the front ends of the left casing wall and the right casing wall are fixedly connected with the corresponding connecting plates on the connecting sleeve body through hollow pins and connecting sleeve body screws. The hollow pin is used for bearing impact force in the shooting process, the rear end of the left cartridge receiver wall and the rear end of the right cartridge receiver wall are fixedly connected with the tailstock through tailstock screws respectively, and the middle of the left cartridge receiver wall and the middle of the right cartridge receiver wall are fixedly connected with the connecting base through connecting base screws respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of firearms, in particular to a combined receiver for a hunting rifle. Background Art

[0002] The receiver of general rifles and shotguns is machined or stamped as a whole after metal forging, and then riveted with the sleeve body and tailstock by pins or rivets to form the receiver parts. This receiver structure has reliable connection, but it has disadvantages such as low material utilization rate of the whole receiver body after forging, high cost, and easy deformation of the stamped receiver body. Since the shotgun adopts a single-shot shooting mode and has no continuous shooting function, the requirements for the strength and rigidity of the receiver are reduced during shooting, and it is possible to optimize the receiver body. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a combined receiver for a hunting rifle, which has high material utilization and low cost while ensuring the required strength.

[0004] The purpose of the utility model is achieved in this way:

[0005] A combined receiver for a hunting rifle comprises a separately arranged sleeve body, a left receiver wall, a right receiver wall, a tailstock and a connecting seat. The sleeve body is in an inverted U-shaped structure. The lower ends of both sides of the sleeve body are divided into connecting plates. The front ends of the left receiver wall and the right receiver wall are fixedly connected to the corresponding connecting plates on the sleeve body through hollow pins and sleeve body screws. The hollow pins are used to withstand the impact force during the shooting process. The rear ends of the left receiver wall and the right receiver wall are fixedly connected to the tailstock through tailstock screws respectively. The middle parts of the left receiver wall and the right receiver wall are fixedly connected to the connecting seat through connecting seat screws respectively.

[0006] Preferably, the front ends of the connecting plate, the left casing wall and the right casing wall are longitudinally provided with two pin holes for connecting with the hollow pins, the hollow pins are interference fit in the corresponding pin holes, the rear end of the connecting plate is provided with bolt holes for connecting with the socket body screws, and the left casing wall and the right casing wall are provided with through holes corresponding to the socket body screws.

[0007] Preferably, the distance between the outer side surfaces of the connecting plates is smaller than the distance between the upper end side surfaces of the socket body, so that a step surface is formed between the outer side surfaces of the connecting plates and the upper end side surfaces of the socket body, and the front ends of the left and right casing walls overlap on the step surface, forming an L-shaped seam between the left and right casing walls and the upper end side surfaces of the socket body.

[0008] Preferably, a flange is provided at the edge portion of the upper side surface of the connecting sleeve body corresponding to the joint between the left and right casing walls, and the flange limits the left and right casing walls laterally.

[0009] Preferably, an oblate groove is vertically provided on the inner side surface of the rear end of the left and right casing walls, and an oblate boss is provided on both side surfaces of the tailstock, and the oblate boss is positioned by clearance fit with the corresponding oblate groove.

[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0011] The utility model divides the casing body into a left casing wall and a right casing wall, which can be respectively drawn into profiles and then machined, so that the material utilization rate is high and the cost is low.

[0012] The left and right receiver walls and the socket body are connected by two hollow pins with interference fit and two screws. The impact force during the shooting process is mainly borne by the hollow pins to ensure the required strength.

[0013] The left and right receiver walls are connected to the tailstock and connecting seat with screws for easy assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model;

[0015] Figure 2 It is an exploded schematic diagram of the utility model;

[0016] Figure 3 This is a diagram of the left casing wall of the present utility model;

[0017] Figure 4 It is a right casing wall diagram of the present utility model.

[0018] Attached photos

[0019] In the accompanying drawings, 1 is a sleeve body, 2 is a left casing wall, 3 is a right casing wall, 4 is a tailstock, 5 is a tailstock screw, 6 is a connecting seat, 7 is a connecting seat screw, 8 is a sleeve body screw, 9 is a hollow pin, 10 is a flange, 11 is an oblate boss, 12 is an oblate groove, and 13 is a connecting plate. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4 , is an embodiment of a combined receiver for a hunting rifle, the receiver is composed of a sleeve body 1, a left receiver wall 2, a right receiver wall 3, a tailstock 4, a tailstock screw 5, a connecting seat 6, a connecting seat screw 7, a sleeve body screw 8, and a hollow pin 9. When assembling the components, first connect the left receiver wall 2 and the right receiver wall 3 to the tailstock 4 with the tailstock screw 5, then put the connecting seat 6 in, connect the left and right receiver walls with the connecting seat screw 7, and finally put the sleeve body 1 in, the front end of the sleeve body is connected to the left and right receiver walls by interference fit with two hollow pins 9, and the two sides of the rear end of the sleeve body are fastened with the sleeve body screws 8 respectively.

[0021] Specifically:

[0022] A combined receiver for a hunting rifle comprises a separately arranged receiving sleeve body 1, a left receiving sleeve wall 2, a right receiving sleeve wall 3, a tailstock 4, and a connecting seat 6. The receiving sleeve body 1 is an inverted U-shaped structure. The lower ends of both sides of the receiving sleeve body 1 are divided into connecting plates. The front ends of the left receiving sleeve wall 2 and the right receiving sleeve wall 3 are fixedly connected to the corresponding connecting plates on the receiving sleeve body 1 through a hollow pin 9 and a receiving sleeve body screw 8. The hollow pin is used to withstand the impact force during the shooting process. The rear ends of the left receiving sleeve wall 2 and the right receiving sleeve wall 3 are fixedly connected to the tailstock 4 through a tailstock screw 5, and the middle parts of the left receiving sleeve wall 2 and the right receiving sleeve wall 3 are fixedly connected to the connecting seat 6 through a connecting seat screw 7.

[0023] The front ends of the connecting plate, the left casing wall 2 and the right casing wall 3 are longitudinally provided with two pin holes for connecting with the hollow pin 9, the hollow pin 9 is interference fit in the corresponding pin holes, the rear end of the connecting plate is provided with a bolt hole for connecting with the socket body screw 8, and the left casing wall 2 and the right casing wall 3 are provided with through holes corresponding to the socket body screw 8.

[0024] The distance between the outer side surfaces of the connecting plates is smaller than the distance between the upper side surfaces of the socket body 1, so that a step surface is formed between the outer side surfaces of the connecting plates and the upper side surface of the socket body 1, and the front ends of the left and right casing walls 2 and 3 overlap on the step surface, and an L-shaped seam is formed between the left and right casing walls 2 and 3 and the upper side surface of the socket body 1. The upper side edge portion of the socket body 1 is provided with a flange corresponding to the seam of the left and right casing walls 2 and 3, and the flange limits the left and right casing walls 2 and 3 in the lateral direction.

[0025] An oblate groove is vertically arranged on the inner side surface of the rear end of the left and right casing walls 2 and 3, and an oblate boss is arranged on both side surfaces of the tailstock 4, which is positioned by clearance fit with the corresponding oblate groove.

[0026] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A combined receiver for a hunting rifle, characterized in that: It includes a separately arranged socket body, a left receiver wall, a right receiver wall, a tailstock, and a connecting seat. The socket body is an inverted U-shaped structure. The lower ends of the socket body on both sides are divided into connecting plates. The front ends of the left receiver wall and the right receiver wall are fixedly connected to the corresponding connecting plates on the socket body through hollow pins and socket body screws. The hollow pins are used to withstand the impact force during the shooting process. The rear ends of the left receiver wall and the right receiver wall are fixedly connected to the tailstock through tailstock screws respectively, and the middle parts of the left receiver wall and the right receiver wall are fixedly connected to the connecting seat through connecting seat screws respectively.

2. A combined receiver for a hunting rifle according to claim 1, characterized in that: The front ends of the connecting plate, the left receiver wall and the right receiver wall are longitudinally provided with two pin holes for connecting with the hollow pins, the hollow pins are interference fit in the corresponding pin holes, the rear end of the connecting plate is provided with bolt holes for connecting with the socket body screws, and the left receiver wall and the right receiver wall are provided with through holes corresponding to the socket body screws.

3. The combined receiver for a hunting rifle according to claim 1, characterized in that: The distance between the outer side surfaces of the connecting plates is smaller than the distance between the upper end side surfaces of the socket body, so that a step surface is formed between the outer side surfaces of the connecting plates and the upper end side surfaces of the socket body, and the front ends of the left and right receiver walls overlap on the step surface, forming an L-shaped seam between the left and right receiver walls and the upper end side surfaces of the socket body.

4. A combined receiver for a hunting rifle according to claim 3, characterized in that: The upper side edge portion of the connecting sleeve body is provided with a flange corresponding to the joint of the left casing wall and the right casing wall, and the flange limits the left casing wall and the right casing wall in the transverse direction.

5. The combined receiver for a hunting rifle according to claim 3, characterized in that: An oblate groove is vertically arranged on the inner side surface of the rear end of the left and right casing walls, and an oblate boss is arranged on both side surfaces of the tailstock, and the oblate boss is positioned by clearance fit with the corresponding oblate groove.

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