CN108302979B

CN108302979B - Crossbow

Info

Publication number: CN108302979B
Application number: CN201810099125.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhuji Houqi Equity Investment Co ltd
Current assignee: Zhuji Youli needle textile Co.,Ltd.
Priority date: 2016-05-01
Filing date: 2016-05-01
Publication date: 2020-10-27
Anticipated expiration: 2036-05-01
Also published as: CN105910491B; CN105910491A; CN108302979A

Abstract

The invention relates to a crossbow which is structurally characterized in that the left side and the right side of the front part of a crossbow support are connected with crossbow arms in a mode of rotating around a shaft, crossbow strings are connected onto the crossbow arms, a supporting rod is arranged and connected between the crossbow arms and a sliding block on the crossbow support in a mode of rotating around the shaft, and the sliding block is driven by an air cylinder at the rear part of the sliding block. According to the crossbow, the energy storage process of the crossbow arm is separated from the stringing process, the damage of long-time stringing to the crossbow can be effectively avoided, and the crossbow uses compressed gas as power, so that the physical consumption of a user is reduced.

Description

Crossbow

The application has the following application numbers: 2016102773605, the name of invention creation: compressed gas power bracing arm type crossbow, application date are: divisional patent application of invention patent application on 2016, 05, month 01.

Technical Field

The present invention relates to crossbows for hunting and shooting sports.

Background

The process of the string on the common crossbow and the process of the energy storage of the crossbow are integrated, and when the crossbow string is hung on a trigger, the crossbow is in a tension energy storage state. If the prod is in a stressed, energy-storing state for a long time, it damages the prod, reducing its life, which results in the use of a conventional crossbow, especially in hunting, with the disadvantage that if the string is hung in advance, the prod is damaged during long-time carrying or waiting, and if the string is hung again when the prey needs to be used, it is easy to lose time. The conventional crossbow needs a user to hang strings manually, so that physical strength of the user is consumed, and particularly, some crossbows with high power are difficult to wind the strings, so that much inconvenience is brought to the user.

Disclosure of Invention

The invention aims to provide a crossbow, which is characterized in that the process of stringing the crossbow and the process of energy storage of a crossbow piece are separated, when in use, the crossbow is hung on a trigger firstly, and a crossbow arrow to be launched is placed, at the moment, the crossbow piece is in a loose or slightly tense state, when in launching, a matched mechanical device is driven by an air cylinder, then a crossbow arm is driven to rotate around a shaft, the crossbow piece is tense to store energy, the shooting preparation is rapidly completed, and the contradiction between long-time string stringing and damage to the crossbow piece is solved. The crossbow provided by the invention uses compressed gas as power, so that the physical consumption of a user is reduced, and a lot of convenience is brought to the user.

The invention provides a crossbow, which is provided with a crossbow support, wherein the rear part of the crossbow support is provided with a trigger mechanism and a grip, the front part of the crossbow support can be provided with pedals according to needs, and the upper part of the crossbow support is provided with an arrow channel for placing a crossbow arrow. The crossbow holds in palm the anterior left and right sides of portion and is connected with the crossbow piece seat with pivoting's mode, and the crossbow piece is installed on the crossbow piece seat, and the crossbow piece seat constitutes the crossbow arm rather than the crossbow piece of installation jointly, is connected with the crossbow string on the crossbow piece or installs pulley, cam and connect the crossbow string on pulley, cam on the crossbow piece. The crossbow holds in the palm the front portion and is provided with the slide rail, installs on the slide rail along the gliding slider of slide rail, is connected with the bracing piece in the slider left and right sides with pivoting's mode, and the bracing piece is connected with the mode of pivoting with the crossbow mount or the crossbow piece of its place side. Be provided with the cylinder on the crossbow support in slider rear, the slider passes through the guide arm and links to each other with the cylinder piston. The crossbow piece seat that the crossbow holds in the palm left and right sides is connected is the symmetric connection, and the crossbow holds in the palm the axis that is connected with the crossbow piece seat and is parallel to each other, and the bracing piece that the slider left and right sides is connected is the symmetric connection, and when the slider slided along the slide rail, the straight line perpendicular to that the motion trajectory of slider central point was located held in the palm the plane that the axis of the axle that symmetric connection was held in the palm with the crossbow was held in the palm to the crossbow was located. When more than one prod seat is arranged on one side of the stock, part of the prod seats are not provided with prods but are used for supporting the prods or supporting the prod seats provided with the prods. The symmetrical connection is referred to as symmetrical positional relationship of connection, and is not limited to symmetrical number or shape of connected components.

Slider or cylinder piston the place ahead is provided with stop gear, and the definition the plane that the slider central point movement track place and the axis of the axle that perpendicular to crossbow piece seat and crossbow are connected is plane A, and stop gear is optimally located when stopping slider or cylinder piston and slide forward, and the bracing piece of slider bilateral symmetry connection is 180 degrees departments with the central point of the axle that the slider is connected and the contained angle between the perpendicular projection of line between the bracing piece of symmetry connection and the central point of the axle that crossbow piece seat or crossbow piece are connected on the A plane between the bracing piece of symmetry connection and the crossbow piece seat. The limiting mechanism is provided with a hole or a recess, a spring is arranged in the hole or the recess, and the spring extends out of the hole or the recess at the side of the sliding block or the piston of the air cylinder and protrudes out of the limiting mechanism. When the bracing piece of slider bilateral symmetry connection and the bracing piece of slider connection are with the contained angle between the perpendicular projection of line between the central point of the axle that crossbow piece seat or crossbow piece are connected on the A plane between the bracing piece of symmetry connection and the central point of the axle that crossbow piece is connected, the system that slider, bracing piece, crossbow piece seat formed or the system that slider, bracing piece, crossbow arm formed is in from the locking state, can't make the slider move backward through the pulling crossbow string promptly, the effect of the spring of installation is after gaseous release in the cylinder, promotes the slider and moves backward, makes the system that slider, bracing piece, crossbow piece seat formed or the system that slider, bracing piece, crossbow arm formed break away from the locking state. The limiting mechanism can also be arranged at other positions in front of the sliding block or the cylinder piston according to actual requirements.

The cylinder is connected with an air guide pipe, an inflation valve, a pressure reducing valve and an air cylinder in sequence or is connected with the inflation valve, the air guide pipe, the pressure reducing valve and the air cylinder in sequence, the cylinder or the air guide pipe is connected with an exhaust valve, the air cylinder is used for storing compressed air, the pressure reducing valve is used for adjusting the pressure of the compressed air in the air cylinder to a pressure range suitable for the cylinder, the inflation valve is used for controlling the passage of the compressed air to the cylinder, and the exhaust valve is used for controlling the passage of the air in the cylinder or the air guide pipe to. The air guide pipe, the inflation valve, the pressure reducing valve, the air bottle and the exhaust valve are arranged at the rear part of the crossbow bracket. The gas cylinder is provided with an inflation inlet, the pressure reducing valve does not have a pressure reducing section for the compressed gas or is provided with a pressure meter before pressure reduction, the pressure reducing valve has a pressure meter after pressure reduction for the pressure reducing section for the compressed gas or the gas guide pipe or the inflation valve or the cylinder, the pressure meter before pressure reduction is used for displaying the pressure of the gas in the gas cylinder, and the pressure meter after pressure reduction is used for displaying the pressure of the gas after pressure reduction by the pressure reducing valve or the pressure of the gas in the cylinder.

When the crossbow string pulling device is used, the exhaust valve is operated firstly, gas in the cylinder or the cylinder and the gas guide pipe is exhausted, the crossbow string is pulled and hung on the trigger mechanism, in the process, the crossbow string pulls the crossbow arm to rotate around the shaft, the sliding block is pushed through the supporting rod to move backwards together with the guide rod and the cylinder piston, and because the gas in the cylinder is exhausted, when the crossbow string is hung on the trigger, the crossbow piece is in a loose state, the crossbow piece can be in a slightly tense state due to different positions of the cylinders, and only part of gas in the cylinder can be exhausted, so that the crossbow piece is in a slightly tense state. And then placing the bolt on the arrow path above the crossbow bracket, namely completing the preliminary shooting preparation.

When needing the shooting, the operation inflation valve with the leading-in cylinder of compressed gas, cylinder piston and guide arm, slider move forward under compressed gas promotes, promote crossbow arm pivoting through the bracing piece and make the crossbow piece bend the energy storage gradually, when slider or cylinder piston's the forward motion is stopped by stop gear, the crooked degree of crossbow piece reaches the biggest, and the crossbow piece is in nervous energy storage state. At the moment, the crossbow finishes all shooting preparations, and the crossbow arrow can be shot by pulling the trigger.

When the product needs to be used again, the steps are repeated.

When the pressure of compressed gas in the gas cylinder is insufficient, external equipment can be used for inflating the gas cylinder through the inflation inlet or replacing the pre-inflated gas cylinder, gas in the gas cylinder can also be not discharged, the crossbow string is directly pulled and a trigger mechanism is hung, and under the condition, the crossbow has the same using method as a common crossbow.

Drawings

Other features of the present invention will become apparent from the accompanying drawings, which illustrate a preferred embodiment of the invention. Wherein

Fig. 1 is a perspective view of a preferred embodiment of the crossbow of the present invention shown in an unstrained, relaxed or slightly stressed condition.

Fig. 2 is a top view of the crossbow of fig. 1.

Fig. 3 is a perspective view of a preferred embodiment of the crossbow of the present invention in a state with the arrow on the string, the prod loose or slightly stressed.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a perspective view of the preferred embodiment of the crossbow of the present invention with the arrow on the string and the prod under tension.

Fig. 6 is a top view of the crossbow of fig. 5.

Detailed Description

Fig. 1-6 illustrate a preferred embodiment of the crossbow of the present invention. This kind of crossbow includes crossbow support (1), and handle (2) and trigger mechanism (3) are installed to crossbow support rear portion, and crossbow support forward portion installs pedal (4) of being convenient for fixed crossbow when going up the crossbow string and with a pair of prod seat (5) of pivoting mode symmetric connection in the anterior left and right sides of crossbow support, and prod (6) are installed on prod seat (5), and prod seat (5) and prod (6) constitute crossbow arm jointly, install crossbow string (7) on the prod. In the preferred embodiment, the central axis of the shaft connecting the prod base (5) and the stock (1) is perpendicular to the horizontal plane.

Crossbow holds in palm (1) front portion about roughly the position fretwork placed in the middle and sets up slide rail (8), be provided with on slide rail (8) and follow gliding slider (9) around the slide rail, cylinder (13) of drive slider (9) are installed to slider (9) rear, the cylinder includes cylinder body (not marking) and piston (not showing) etc., piston (not showing) in the cylinder are connected and are driven slider (9) through guide arm (12), in this preferred embodiment, be provided with two cylinder (13) symmetry and install in crossbow support (1) rear portion both sides, crossbow support (1) is arranged in to half of cylinder (13), half exposes outside crossbow support (1), set up guide arm (12) of two symmetrical arrangement correspondingly, two guide arm (12) drive slider (9) jointly. The supporting rod (10) is arranged, two ends of the supporting rod are connected to the sliding block (9) and the slide seat (5) in a pivoting mode respectively, and when the sliding block (9) slides forwards and backwards, the supporting rod (10) drives the slide seat (5) to rotate around a shaft. In the preferred embodiment, the motion track of the middle point of the sliding block and the central line of the supporting rod are in the same horizontal plane.

A limiting mechanism (11) is installed on a crossbow support at the front part of the sliding block, a hole or a recess is formed in the limiting mechanism (11), a spring (not shown) is installed in the hole or the recess, and the spring extends out of the hole or the recess on one side of the sliding block (9) and protrudes out of the limiting mechanism (11). In the preferred embodiment, the limiting mechanism (1) is arranged at a position which can prevent the sliding block from continuously sliding towards the front part of the crossbow when the included angle of the central lines of the two supporting rods (10) is 180 degrees.

The rear portion of the crossbow support (1) is provided with a gas cylinder (17) filled with compressed gas, a pressure reducing valve (16), an inflation valve (15) and a gas guide pipe (14) are connected in series with an opening of the gas cylinder (17), the gas guide pipe (14) is provided with a vent valve (18), and a pressure gauge (19) after pressure reduction and a pressure gauge (20) before pressure reduction are respectively arranged at the front and the rear of the pressure reducing valve (16) and used for displaying the gas pressure after pressure reduction of the pressure reducing valve and the gas pressure before pressure.

When the crossbow device is used, the exhaust valve (18) is operated to exhaust gas in the cylinder and the guide pipe, the sliding block (9) loses the support of the guide rod (12) and slides backwards under the pushing of the spring in the limiting mechanism (11), so that the central lines of the two support rods (10) are separated from the state of an included angle of 180 degrees, the crossbow string (7) is pulled and the trigger mechanism (3) is hung, and the crossbow arrow (21) is placed above the crossbow holder (1). The in-process of pulling crossbow (7), the crossbow piece drives crossbow piece seat (5) pivoting, and drive bracing piece (10) and then drive slider (9) and guide arm (12), the same backward movement of cylinder piston, because the gas in the cylinder has been discharged, the crossbow piece is in lax state, also can make the crossbow piece be in a state of tension slightly because the difference of cylinder position, also can only discharge some gas in the cylinder for the crossbow piece is in a state of tension slightly. The crossbow is now in the condition shown in figures 3 and 4.

When shooting is needed, the inflation valve (15) is operated, so that air enters the air cylinder (13) through the air guide pipe (14), the piston is driven to simultaneously drive the guide rod (12) and the slide block (9) to move forwards, and then the supporting rod (10) drives the crossbow piece seat (5) to rotate around the shaft, so that the crossbow piece is tense in energy storage.

When slider (9) slided to stop gear (11), because of the elasticity of spring is far less than the thrust that cylinder (13) provided, the spring can be pressed into the hole or sunken of stop gear (11), and the central line contained angle of two bracing pieces (10) is 180 degrees this moment, and the elastic potential energy accumulation of crossbow piece (6) is to the biggest, and the crossbow is in and waits to fire the state (as shown in fig. 5, 6), pulls the trigger, can shoot out the arrow crossbow. After the arrow is launched, the crossbow is in the state shown in fig. 1 and 2.

When the product needs to be used again, the steps are repeated.

As can be seen from the preferred embodiment illustrated in fig. 1-6, the present invention provides a crossbow that provides for the storage of energy by expanding the arms, as opposed to a conventional crossbow which stores energy by pulling a string.

In the preferred embodiment illustrated in fig. 1-6, the prod takes the form of a retroflection, and in practice, may also take the form of a straight pull prod or a compound prod in which the prod is combined with a pulley and a cam.

The foregoing describes a preferred embodiment of the present invention and is considered as merely illustrative of the principles of the invention and not in limitation thereof, all numerous other variations being within the scope of the invention.

Claims

1. A crossbow comprises a crossbow support, a trigger mechanism, a crossbow piece and a crossbow string, and is characterized in that the left side and the right side of the front portion of the crossbow support are connected with a crossbow piece seat in a mode of rotating around a shaft, the crossbow piece is installed on the crossbow piece seat, the front portion of the crossbow support is provided with a sliding rail, a sliding block which slides along the sliding rail is installed on the sliding rail, the left side and the right side of the sliding block are connected with supporting rods in a mode of rotating around the shaft, the supporting rods are connected with the crossbow piece seat or the crossbow piece on the side where the supporting rods are located in a mode of rotating around the shaft, an; the crossbow sheet seats connected with the left side and the right side of the crossbow support are symmetrically connected, the crossbow sheet seats on the left side and the right side are respectively connected with the crossbow support through a shaft, the central axes of the two shafts are parallel to each other, the supporting rods connected with the left side and the right side of the sliding block are symmetrically connected, and when the sliding block slides along the sliding rail, the straight line of the motion track of the central point of the sliding block is vertical to the plane of the central axes of the shafts, symmetrically connected with the crossbow support, of the crossbow sheet seats and the crossbow support; a limiting mechanism is arranged in front of the sliding block or the cylinder piston; trigger mechanism, handle are installed to crossbow support rear portion, and the crossbow holds in the palm the anterior pedal of installing as required, and crossbow support upper portion is provided with the arrow way of laying the arrow.