EA036826B1 - Device for extermination of small burrowing animals - Google Patents

Abstract

The invention relates to the field of devices for extermination of animals using powder gases of blank shots actuated by an impact of the animals themselves, and is intended for the extermination of small burrowing animals such as moles and blind mole rats. Simplification of the device application and reduction of dimensions are achieved. The body of the device is an internal horizontal cylinder (2) located inside a housing (1), the fore part of this cylinder accommodates a dismountable bullet chamber (6). In front the bullet chamber, there is a trigger ring (9) movable along the cylinder axis; said ring, by means of a long rod (12) passing between the housing and the inner cylinder, is attached to a firing trigger (15) located behind the body and fitted with a loop (16) capable of retaining a striker actuating lever (17). The striker actuating lever interacts with a spring-loaded striker located inside the inner cylinder.

Description

The field of technology.

The invention relates to the field of devices for killing animals with gunpowder gases of blank shots, triggered by the action of the animals themselves, and is intended for the destruction of small animals leading a burrowing lifestyle, such as moles and mole rats.

Prior art

A gas explosion deratizer is known from the prior art (Chinese patent for utility model No. CN 200920155715.9, 2010), which is a supply of compressed gas supplied by a compressor under pressure into an animal burrow. The disadvantage of the known device is the complexity of the design and implemented with its help method of fighting animals.

From a number of patents (French patents: publ. FR 2376626, 1978; FR 2403023, 1979; FR 2626142, 1989; FR 2750294, 1998; US patents No. US 2809464, 1957; US 4109406, 1978 g .; US 9314011, 2016) known devices for the destruction of moles placed in the burrow deflagration pyrotechnic charges, which are electrically driven from a sensor, which is affected by the mole when moving along the burrow. The disadvantage of these devices is the need to use interconnected electrical components, which complicates the design and reduces reliability.

From a number of patents (French patents: no. Publ. FR 2592762, 1987; FR 2592553, 1987) a device for the destruction of moles by a shot of a hunting cartridge is known. The shot is fired at a sensor located in front of the muzzle, which is activated by the mole itself when moving along the burrow. The disadvantage of this device is the need to use a hunting cartridge, i.e. ammunition posing a threat to the user of the device.

The closest is a device for the elimination of burrowing rodents, such as moles, ground squirrels and the like, known from the European application for invention, publication number EP 1321038, 2003. The device contains a housing in which a blank (hunting) cartridge is placed in front of the conical channel. A pressure sensor is installed in front of the tapered channel, connected through a system of levers with a striker. The destruction of the animal occurs by the shock wave of a blank shot.

The disadvantage of this analogue is the large dimensions of the device and the complexity of its use, associated with the need for precise alignment of the pressure sensor with the hole of the animal burrow when installing the device in the place of application.

Disclosure of invention

The technical problem to be solved by the invention is to improve the usability of the device for the destruction of burrowing small animals.

The technical result provided by the invention is to simplify the use of the device for the destruction of burrowing small animals.

Another technical result is to reduce the size of the device for the destruction of burrowing small animals.

The essence of the invention lies in the fact that the device for the destruction of burrowing small animals contains a housing with a chamber, in front of which a trigger ring is placed with the possibility of movement. It differs in that the body is an internal horizontal cylinder (2) located inside the casing (1), in the front of which there is a removable chamber (6). In this case, the trigger ring (9) is made with the possibility of movement along the axis of the inner cylinder and, using a long rod (12) passing between the casing and the inner cylinder, is connected to the trigger (15) located behind the body, equipped with a loop (16) made with the ability to hold the lever (17) of the striker. In this case, the striker lever is designed to interact with a spring-loaded striker placed inside the inner cylinder.

The above essence is a set of essential features of the invention, ensuring the achievement of the claimed technical results.

In particular cases, it is permissible to carry out the invention as follows.

Preferably, the casing is made in the form of an outer cylinder (1) coaxial to the inner cylinder, provided with a longitudinal cut from below. The said cylinders are connected by the front (3) and rear (4) annular walls.

The inner cylinder protrudes from the front and rear walls. The outer cylinder is equipped with an integral visor (13) located above the space between the trigger ring (9) and the front wall (3). In this case, the trigger ring (9) is fixed to two rods - short (11) and long (12). The short rod is located in the front wall opening (3). The long bar is located in the holes of the front (3) and rear (4) walls. At the same time, the frame (14) of the impact mechanism, which is a plate, is attached to the body from the back. A trigger (15) is pivotally mounted on the frame of the percussion mechanism, the end of which is freely placed in the hole of the long rod (12). On the frame of the percussion mechanism, the axis of the two-armed lever (17) of the striker is also fixed, one arm of which is configured to be installed in the loop (16) of the trigger, and the other shoulder is installed in the fork (19) of the striker. In this case, the striker is made with the ability to perform translational movements in the striker sleeve (23), fixed with a clamping screw (24) in the rear part of the inner cylinder (2). In this case, the striker (20) is spring-loaded relative to its sleeve (23). The spring (26) is placed 1 036826 around the striker inside the body. At the front, the spring (26) is held by a thrust ring (27) attached to the striker.

Between the front and rear walls in the cutout of the outer cylinder (1), it is advisable to fix the strip (5).

The chamber (6) is screwed into the inner cylinder (2) and can be a cylinder with a thread on the outer surface and with an inner hole for installing a blank cartridge. In this case, in the front end part, the chamber has an opening (7) for the outlet of powder gases. In the front part, on the outer surface, the chamber is equipped with small slots (8).

It is advisable to place the holes for the rods along the diameter of the front wall ring, and this diameter is oriented at an angle to the horizontal so that the long rod (12) is located below the short rod (11).

It is desirable to equip the device with a safety clip (29), made with the possibility of throwing on the arm of the lever (17) of the striker and keeping the striker (20) from contact with the cartridge placed in the chamber.

The author of the invention has made a prototype of this solution, the tests of which have confirmed the achievement of technical results.

Brief Description of Drawings

FIG. 1 shows a general bottom view of the device;

in fig. 2 - longitudinal section of the device along the rods (firing mechanism frame, trigger, striker lever, safety loop are not shown conventionally).

List of reference symbols

- Outer cylinder;

- inner cylinder;

- front wall;

- back wall;

- bar;

- chamber;

- a hole in the chamber for the outlet of powder gases;

- slots of the chamber;

- trigger ring;

- cut of the trigger ring;

- short bar;

- long bar;

- visor;

- impact mechanism frame;

- trigger;

- trigger loop;

- drummer lever;

- cartridge;

- drummer fork;

- drummer;

- pin of the striker fork;

- the front end (firing pin) of the striker;

- drummer bushing;

- clamping screw of the striker sleeve;

- annular groove of the striker sleeve;

- drummer spring;

- thrust ring;

- reinforcing sleeve;

- safety bracket;

- bending of the impact mechanism frame.

Implementation of the invention

The device for the destruction of burrowing small animals, such as moles and mole rats, is equipped with a housing which is a horizontal inner circular cylinder (2) located inside the casing (1) (Figs. 1, 2). The casing (1) is preferably made in the form of an outer cylinder (1) coaxial with the inner cylinder. The outer (1) and inner (2) cylinders are connected by front (3) and rear (4) walls made in the form of rings. The walls are located at the ends of the outer cylinder (1).

At the bottom, the outer cylinder is provided with a longitudinal cutout for accessing the space between the cylinders in order to clean this space from soil and other contaminants. Along the lower edge of the body along the cutout in the outer cylinder between the front (3) and rear (4) walls, a strip (5) is fixed, designed to slide on the ground or surface, as well as to prevent the body from turning over in the ground during use of the device. When sliding on the ground or objects in the ground, the plank (5) reduces the engagement of the ground or these objects by the lower

- 2 036826 edges of the walls (3, 4).

A chamber (6) is screwed into the inner cylinder at the front of the case. In this case, the front end of the inner cylinder protrudes from the front wall at the front. The chamber (6) is a cylinder with a thread on the outer surface and with an inner hole corresponding to the caliber of the blank cartridge (18) used in the device. The inner hole is slightly tapered to hold the cartridge in the chamber. In the front end part, the chamber has an opening (7) for the outlet of powder gases. In the front part, on the outer surface, the chamber is equipped with small slots (8) for tightening it in the inner cylinder by hand. At the rear, the chamber is provided with a hole for installing the cartridge (18). The device preferably uses a blank light and sound cartridge 10TK manufactured by ZAO Tekhkrim, Russia, Republic of Udmurtia, p. Zavyalovo. A mounting cartridge can be used.

In front of the body on two rods there is a trigger ring (9) with the possibility of movement along the body axis. The release ring is coaxial to the axis of the cylinders (1, 2) of the housing and, thus, the plane of the ring is perpendicular to this axis. The trigger ring (9) has an outer diameter slightly less than the diameter of the front wall (3) of the body and is provided with a cut (10) in the lower part. The specified cut is designed to reduce the resistance of the soil to the movement of the trigger ring during device operation. The diameter of the trigger ring bore is slightly larger than the diameter of the chamber (6) and the inner cylinder (2) of the body. This allows the trigger ring to move against the front wall for reloading and assembly / disassembly.

The rods are straight and placed in the body in the space between the cylinders. One rod (11) is short and is located only in the opening of the front wall (3). The other rod (12) is long and is located in the holes of the front (3) and rear (4) walls. The holes for the rods are located along the diameter of the front wall ring, and the specified diameter is oriented at an angle to the horizontal so that the long rod (12) is located below the short rod (11). This arrangement of the long rod allows to increase the length of the straight section of the trigger (15), i.e. increase the sensitivity of the trigger by reducing the force of the rod on the trigger, which is necessary to trigger the device. This improves the usability of the device.

The outer cylinder (1) is equipped with a visor (13) in front to protect the space between the trigger ring (9) and the front wall (3) of the body from crumbling soil. The visor (13) is preferably integral with the outer cylinder (1).

The frame (14) of the percussion mechanism is attached to the back of the body, which is a plate provided with holes, lying, in essence, in the plane of the axis of the cylinders of the body.

A trigger (15) is pivotally mounted on the frame (14) of the percussion mechanism. The trigger is made of bent wire. One end of the trigger is loosely placed in the hole (31) of the long rod (12) in the area extending from the rear wall (4). The other end of the trigger is located in the hole of the hammer frame and is the axis of the hook. The trigger has a loop (16) to accommodate the lever (17) of the striker.

The lever (17) of the striker is fixed with its axis on the frame (14) of the striking mechanism with the possibility of rotation. The striker lever is a two-armed lever. One shoulder is made with the possibility of installation in the loop (16) of the trigger. The other shoulder is installed in the fork (19) of the striker. The hammer frame plate (14) has a bend (30) such that the upper end of the hammer lever (17) is located opposite (in one plane) the upper part of the frame plate (14), where the trigger loop (16) is attached to the frame (14) and safety clip (29). This design is directed during the operation of the device to the absence of bending loads from the lever (17) to the loop (16) directed to the right or left of the frame plate (14), i.e. along the axis of the trigger.

The striker (20) is located inside the inner cylinder (2) of the body and is a cylindrical rod. At the rear end of the striker, a fork (19) is made to accommodate the lever arm (17) of the striker. The lever arm is held in the fork by a pin (21). The front end of the striker (firing pin) (22) in the place of its contact with the cartridge primer has a narrowing.

The striker is made with the ability to perform translational movements in the striker sleeve (23), fixed with a clamping screw (24) in the rear part of the inner cylinder (2). The inner cylinder protrudes from the rear wall (4) at the rear and is provided in this part with a threaded hole for the clamping screw (24) of the striker sleeve. The bushing of the striker is provided on the outside with an annular groove (25) into which the clamping screw (24) fits.

The striker (20) is spring-loaded relative to its sleeve (23). The spring (26) is placed around the striker inside the body. At the front, the spring (26) is held by a thrust ring (27) attached to the striker.

In the reinforcing sleeve (28) on the frame of the percussion mechanism, a safety clip (29) is fixed, made with the possibility of throwing on the arm of the lever (17) of the striker so as to keep the striker (20) from contact with the cartridge in case of the trigger loop (16) jumping off from lever (17). The reinforcing sleeve (28) on the frame of the striking mechanism is designed to prevent deformation (stretching) of the safety clip (29), since it is relatively large and is made around the loop of the trigger (16). Also, the reinforcing sleeve is designed to increase the frictional force of turning the safety clip so that the safety clip rotates only when a certain force is applied to it by the user of the device.

The device for the destruction of burrowing small animals is made of metal.

Description of work.

Preparing a site for installing a device for the destruction of burrowing small animals consists in excavating soil in the area of the underground passage dug by the animal so that the body of the device can be inserted into this underground passage.

Preparing the device for use consists in installing a cartridge, platoon, placing it in an underground passage and bringing it into an activated state.

To install the cartridge, unscrew the chamber (6), keeping the trigger ring (9) pressed against the front wall (3). Then place the cartridge in the chamber and screw the chamber into the front of the inner cylinder (2). The lever (17) of the striker is not caught in the loop (16) of the trigger or the safety guard (29), the striker (20) is pushed forward under the action of the spring (26).

To cocking the device, move the lever (17) of the striker to the frame (14) of the striking mechanism and wind it behind the safety bracket (29) and the loop (16) of the trigger. The safety clip is turned back. The spring (26) is compressed and the striker (20) is pushed back from the chuck. In this case, the long rod (12) pushes the trigger ring (9) away from the front wall (3), placing it in the working position in front of the chamber (6). In the cocked state as described above, the striker lever (17) is held by the trigger loop (16) and, as a rule, does not come into contact with the safety guard (29), although it is insured by the latter against the striker hitting the cartridge primer.

The device is placed in the underground passage of the animal, placing the trigger ring (9) inside this passage. The visor (13) is oriented upwards, it protects the space in which the trigger ring (9) moves from crumbling soil. If, during the placement of the device in the underground passage, the striker lever (17) jumps off the trigger loop (16), the safety clip (29) catches this lever (17) and prevents the striker (20) from contacting the cartridge (shot).

Making the front end of the inner cylinder (2) protruding from the front wall (3) of the body allows the working area of the trigger ring (9) to be carried out at a sufficient distance from the front wall (3) of the body so that the soil that gets into the space between this ring and the wall can be significantly did not interfere with the movement of the trigger ring and did not block the operation of the device.

The platoon of the device can also be carried out after its placement in the underground passage.

Activate the device by turning the safety clip (29) up and forward. After activating the device, the safety clip does not interfere with the movement of the striker lever and does not interfere with the operation of the striker.

Moving in the underground passage, as a rule, pushing a certain amount of soil in front of itself, the animal presses on the trigger ring (9). In this case, the lower cut (10) of the trigger ring passes over the soil particles, which crumbled into the area under the chamber (6) despite the presence of the visor (13). In this case, the long pusher (12) acts on the trigger (15), pushing its lower edge back. This causes the trigger loop (16) to turn upwards, the upper end of the hammer lever (17) is released. After the lever (17) is released, the striker (20), under the action of the spring (26), strikes with its front part into the cartridge primer, the cartridge is triggered. Powder gases escape forward through a hole in the chamber, killing the animal.

Industrial applicability

The invention is implemented using commercially available materials, can be manufactured at any machine-building enterprise and will find wide application in the field of combating burrowing animals.

Claims (6)

CLAIM 1. A device for the destruction of burrowing small animals, containing a body with a chamber, in front of which a trigger ring is placed with the possibility of movement, characterized in that the body is an internal horizontal cylinder (2) located inside the casing (1), in the front of which there is a removable chamber (6), the trigger ring (9) is made with the possibility of movement along the axis of the inner cylinder and, using a long rod (12) passing between the casing and the inner cylinder, is connected to the trigger (15) located behind the body, equipped with a loop (16), made with the possibility of holding the lever (17) of the striker, while the lever of the striker is designed to interact with the spring-loaded striker placed inside the inner cylinder. 2. The device according to claim 1, characterized in that the casing is made in the form of an outer cylinder (1) coaxial to the inner cylinder, provided with a longitudinal cut from the bottom, while the said cylinders are connected by front (3) and rear (4) annular walls, the inner cylinder protrudes from the front and rear walls, the outer cylinder is equipped with an integral visor (13) located - 4 036826 above the space between the trigger ring (9) and the front wall (3), while the trigger ring (9) is fixed to two rods - short (11) and long (12), the short rod is located in the hole in the front wall (3) , and the long rod is placed in the holes of the front (3) and rear (4) walls, while the frame (14) of the impact mechanism, which is a plate, is attached to the body from the rear, a trigger (15) is installed on the frame of the impact mechanism with the possibility of rotation, the end which is freely placed in the hole of the long rod (12), the axis of the double-armed lever (17) of the striker is fixed on the frame of the striking mechanism, one arm of which is made with the possibility of installing the trigger in the loop (16), and the other shoulder is installed in the fork (19) of the striker, in this case, the striker is made with the ability to perform translational movements in the striker bushing (23), fixed by means of a clamping screw (24) in the rear part of the inner cylinder (2), while the striker (20) is spring-loaded relative to its bushing (23), the spring (26) is placed around the striker inside the body, in the front part of the spring (26) is held by a thrust ring (27) fixed to the striker. 3. A device according to claim 2, characterized in that a strip (5) is fixed between the front and rear walls in the cutout of the outer cylinder (1). 4. The device according to claim 1 or 2, characterized in that the chamber (6) is screwed into the inner cylinder (2) and is a cylinder with a thread on the outer surface and with an internal hole for installing a blank cartridge, while in the front end part of the chamber has a hole (7) for the outlet of powder gases, in the front part on the outer surface of the chamber is equipped with small slots (8). 5. A device according to claim 2, characterized in that the holes for the rods are located along the diameter of the front wall ring, said diameter being oriented at an angle to the horizontal so that the long rod (12) is located below the short rod (11). 6. The device according to claim 1 or 2, characterized in that it is provided with a safety clip (29), made with the possibility of throwing on the arm of the lever (17) of the striker and keeping the striker (20) from contact with the cartridge placed in the chamber.