A non-destructive installation pressure measuring device for a rifle gas chamber and its use method

Abstract

The present invention discloses a non-destructive installation pressure measuring device for a rifle gas chamber and a method for using the device, which can quickly measure the gas chamber pressure without modifying the rifle. The device comprises a sensor holder, a positioning device, and a sensor. The rear end inner hole of the sensor holder is an air chamber, and the rear end bottom of the sensor holder is provided with an air inlet, which is connected to the air chamber. The front end of the sensor holder is provided with a positioning connector, which has a boss for axial positioning. The inner hole of the positioning connector is connected to the air chamber, and the sensor is threadedly engaged with the inner hole of the positioning connector. The positioning device comprises a positioning connector block, a positioning pin, and a positioning plate. The positioning plate is hollowly mounted on the sensor and the gun barrel. The bottom of the positioning plate is provided with a T-slot, and the T-slot of the positioning plate is used to slide and engage with the T-block at the bottom of the regulator limit seat for positioning. The positioning connector block is connected to the positioning connector and the positioning plate via the positioning pin.

Description

Technical Field

[0001] The present invention relates to the technical field of firearms, and in particular to a non-destructive installation pressure measuring device for a rifle gas chamber and a use method thereof. Background Art

[0002] During mass production of rifles, defective products often fail to meet relevant specifications due to significant variations in the speed and frequency of the automatic machine. This is primarily due to variations in the machining dimensions of gas system components, which lead to variations in relevant parameters. This results in variations in gas chamber pressure, which in turn affects the speed and frequency of the automatic machine. To verify the consistency of gas system machining during production and screen out defective products, rapid measurement of gas chamber pressure is required without modifying the rifle. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a non-destructive installation pressure measuring device for a rifle gas chamber and a method of using the same, which can quickly measure the gas chamber pressure without modifying the rifle.

[0004] The object of the present invention is achieved like this:

[0005] A non-destructive pressure measuring device for a rifle gas chamber comprises a sensor fixing seat, a positioning device, and a sensor. The sensor is used to test the pressure of the gas chamber.

[0006] The sensor holder is cylindrical, and the rear end of the sensor holder is used to extend into the gas guide ring of the rifle and abut against the piston for positioning and sealing. The rear end inner hole of the sensor holder is an air chamber, and the rear end bottom of the sensor holder is provided with an air inlet hole, which is connected to the air chamber and the air guide hole on the barrel of the rifle.

[0007] A positioning connector is provided at the front end of the sensor fixing seat. The positioning connector has a boss. The boss of the positioning connector is axially positioned between the gas guide ring and the regulator limit seat of the rifle. The inner hole of the positioning connector is a threaded hole. The inner hole of the positioning connector is connected to the gas chamber. The probe end of the sensor is threadedly fitted in the inner hole of the positioning connector.

[0008] The positioning device includes a positioning connecting block, a positioning pin, and a positioning plate. The positioning plate has a cavity, and the positioning plate is hollowly sleeved on the sensor and the gun barrel. A T-shaped groove is provided on the inner side of the bottom of the positioning plate. The T-shaped groove of the positioning plate is used to slide and cooperate with the T-shaped block at the bottom of the regulator limit seat for positioning. The upper ends of the positioning connector and the positioning plate are both provided with support ears, and the positioning connecting block is connected to the support ears on the positioning connector and the positioning plate through the positioning pin.

[0009] Preferably, an air hole is provided at one end of the air cavity adjacent to the positioning connector, the aperture of the air hole is smaller than the apertures of the air cavity and the inner hole of the positioning connector, and the sensor is axially positioned on the step surface of the inner hole of the positioning connector.

[0010] Preferably, the specifications of the air chamber of the sensor fixing seat are the same as those of the air chamber of the rifle regulator.

[0011] A method for using a non-destructive installation pressure measuring device for a rifle gas chamber,

[0012] Remove the rifle's regulator from the gas block;

[0013] Install the sensor holder in the gas block, with the rear end of the sensor holder in contact with the piston in the gas block, so that the positioning connector is axially positioned between the gas block and the regulator stopper of the rifle. Fit the T-slot of the positioning plate to the T-block of the regulator stopper, and connect the positioning connector to the positioning connector and the lugs on the positioning plate through the positioning pins.

[0014] After the rifle is loaded and fired, the gas enters the gas chamber of the sensor fixing seat through the gas hole on the barrel. The sensor can then measure the pressure of the gas chamber, which is equal to the gas chamber pressure of the rifle regulator.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0016] The positioning connection block is axially positioned by the regulator limit seat and the air guide hoop, and the positioning device is positioned by the T-shaped block of the regulator limit seat to prevent the positioning connection block from rotating and ensure the accuracy of the test structure.

[0017] The invention relies on the structure of the rifle itself for installation, and can quickly measure the pressure of the gas chamber without modifying the rifle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the appearance of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3 It is a schematic diagram of the decomposition structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the working principle of the present invention;

[0022] Figure 5 Schematic diagram of the sensor mounting bracket.

[0023] Reference numerals

[0024] In the accompanying drawings, 1-sensor fixing seat; 2-positioning connecting block; 3-positioning pin; 4-positioning plate; 5-sensor; 6-barrel; 7-regulator limit seat; 8-gas guide hoop; 9-piston. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] A non-destructive installation pressure measuring device for a rifle gas chamber comprises a sensor fixing seat 1, a positioning device, and a sensor 5. The sensor 5 is used to test the pressure of the gas chamber.

[0027] The sensor holder 1 is cylindrical, and the rear end of the sensor holder 1 is used to extend into the gas hoop 8 of the rifle and abut against the piston 9 for positioning and sealing. The inner hole at the rear end of the sensor holder 1 is an air chamber, and an air inlet is provided at the bottom of the rear end of the sensor holder 1. The air inlet of the sensor holder 1 is connected with the air chamber. When the rear end of the sensor holder is extended into the rifle and positioned with the gas hoop through the regulator limit seat (i.e., in the installed state), the air inlet of the sensor holder 1 is connected with the air hole on the barrel 6 of the rifle, and the gas hoop 8 is also provided with an air hole for gas to pass through.

[0028] A positioning connector is provided at the front end of the sensor holder 1. The cross-section of the connector is "U"-shaped. The outer diameter of the "U"-shaped circle of the positioning connector is larger than the outer diameter of the rear end of the sensor holder, forming a boss. The boss of the positioning connector is axially positioned between the gas hoop 8 and the regulator limit seat 7 of the rifle. The inner hole of the positioning connector is a threaded hole, which is connected to the air chamber. The probe end of the sensor 5 is threadedly fitted in the inner hole of the positioning connector.

[0029] The positioning device includes a positioning connecting block 2, a positioning pin 3, and a positioning plate 4. The positioning plate 4 has a cavity. The positioning plate 4 is hollowly mounted on the sensor 5 and the gun barrel 6. A T-shaped groove is provided on the inner side of the bottom of the positioning plate. The T-shaped groove of the positioning plate is used to slide and cooperate with the T-shaped block at the bottom of the regulator limit seat 7 for positioning. The upper ends of the positioning connector and the positioning plate 4 are both provided with support ears. The positioning connecting block 2 is connected to the support ears on the positioning connector and the positioning plate 4 through the positioning pin 3.

[0030] An air hole is provided at one end of the air cavity adjacent to the positioning connector. The diameter of the air hole is smaller than the diameters of the air cavity and the inner hole of the positioning connector. The sensor 5 is axially positioned on the step surface of the inner hole of the positioning connector.

[0031] The gas chamber of the sensor mount 1 has the same specifications as the rifle's regulator's gas chamber. The internal structure of the sensor mount ensures consistent parameters and chamber pressure with the original rifle. This allows for non-destructive installation after the regulator is removed from the rifle. The sensor mount features threaded holes for connection and quick replacement of pressure sensors.

[0032] A method for using a non-destructive installation pressure measurement device for a rifle's gas chamber is disclosed. To use the device, first remove the rifle's regulator, then install the sensor holder 1 onto the gas ring 8, with its rear being held against the piston 9. The regulator limiter 7 is used to limit the front-to-back position. The positioning plate 4 is then installed onto the regulator limiter 7. The positioning plate 4 and regulator limiter 7 are connected via a T-slot. The sensor holder and the positioning plate are then connected using a positioning connection block 2 and a positioning pin 3 to position the device. Finally, the sensor 5 is threadedly installed onto the sensor holder 1 to complete the device installation. After the rifle is loaded and fired, gas enters the sensor holder 1 through the gas port on the barrel 6, allowing the sensor 5 to measure the gas chamber pressure.

[0033] The regulator limit seat is an existing structure of the rifle. In this embodiment, the regulator limit seat is axially limited and can be rotated, and the circumferential position is locked by a pin. The regulator limit seat is uneven in thickness and can be rotated to make way for the regulator of the rifle, so that the regulator of the rifle can be removed. Similarly, other components can be installed and disassembled.

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention 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 present invention.

Claims

1. A non-destructive pressure measuring device for a rifle gas chamber, characterized in that: It includes a sensor fixing seat, a positioning device, and a sensor. The sensor is used to test the pressure of the air guide chamber. The sensor holder is cylindrical, and the rear end of the sensor holder is used to extend into the gas guide ring of the rifle and abut against the piston for positioning and sealing. The rear end inner hole of the sensor holder is an air chamber, and the rear end bottom of the sensor holder is provided with an air inlet hole, which is connected to the air chamber and the air guide hole on the barrel of the rifle. A positioning connector is provided at the front end of the sensor fixing seat. The positioning connector has a boss. The boss of the positioning connector is axially positioned between the gas guide ring and the regulator limit seat of the rifle. The inner hole of the positioning connector is a threaded hole. The inner hole of the positioning connector is connected to the gas chamber. The probe end of the sensor is threadedly fitted in the inner hole of the positioning connector. The positioning device includes a positioning connecting block, a positioning pin, and a positioning plate. The positioning plate has a cavity, and the positioning plate is hollowly sleeved on the sensor and the gun barrel. A T-shaped groove is provided on the inner side of the bottom of the positioning plate. The T-shaped groove of the positioning plate is used to slide and cooperate with the T-shaped block at the bottom of the regulator limit seat for positioning. The upper ends of the positioning connector and the positioning plate are both provided with support ears, and the positioning connecting block is connected to the support ears on the positioning connector and the positioning plate through the positioning pin.

2. The non-destructive pressure measuring device for a rifle gas chamber according to claim 1, characterized in that: An air hole is provided at one end of the air cavity adjacent to the positioning connector. The aperture of the air hole is smaller than the apertures of the air cavity and the inner hole of the positioning connector. The sensor is axially positioned on the inner hole step surface of the positioning connector.

3. The non-destructive pressure measuring device for a rifle gas chamber according to claim 2, characterized in that: The gas chamber of the sensor mount has the same specifications as the gas chamber of a rifle regulator.

4. A method for using the non-destructive mounting pressure measuring device for a rifle gas chamber according to claim 1, characterized in that: Remove the rifle's regulator from the gas block; Install the sensor holder in the gas block, with the rear end of the sensor holder in contact with the piston in the gas block, so that the positioning connector is axially positioned between the gas block of the rifle and the regulator stopper. Fit the T-slot of the positioning plate with the T-block of the regulator stopper for positioning, and connect the positioning connector to the positioning connector and the lugs on the positioning plate through the positioning pin. After the rifle is loaded and fired, the gas enters the gas chamber of the sensor fixing seat through the gas hole on the barrel. The sensor can then measure the pressure of the gas chamber, which is equal to the gas chamber pressure of the rifle regulator.

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