A liquid emitter and a combined liquid emitter and glass breaking device comprising the same

Abstract

A liquid launcher includes a first tube, a piston switch, a piston head, and a thrust spring. The outer end of the first tube is detachably threaded with a sealing head, which has a central injection hole. The first tube contains a liquid storage chamber communicating with the central injection hole. The liquid storage chamber, piston head, and thrust spring are sequentially arranged within the first tube. One end of the thrust spring is connected to a fixed partition fixedly installed at the inner end of the first tube cavity, and the other end is connected to the piston head. The thrust spring generates an elastic force on the piston head, causing it to compress the liquid storage chamber. The piston head and the liquid storage chamber form a piston-like fit. An annular locking groove is provided on the side of the piston head near the thrust spring, and this groove forms a locking connection with the piston switch. The piston switch controls the fixing or movement of the piston head relative to the first tube.

Description

Technical Field

[0001] This invention relates to the field of liquid emitters, and more specifically to a liquid emitter and a combined liquid emitter glass-breaking device containing the device. Background Technology

[0002] Among existing launchers, such as the bulletproof glass-breaking device for military, police, and fire fighting disclosed by the applicant in application number CN202311361690.9, there is an outer tube, a control unit, a motor, a transmission assembly, a launching assembly, and a columnar window-breaking rod. The motor, transmission assembly, and launching assembly are sequentially connected. The launching assembly includes an inner tube, a high-pressure spring sleeved inside the inner tube, and a top component connecting the outer end of the high-pressure spring. The inner tube has a launching port on the side facing away from the motor, and a launching port on the side facing away from the motor. The inner slide of the track extends axially along the inner tube. The inner end of the inner slide is provided with a locking port that is staggered and connected to the inner slide of the track. The outer end of the top part and the columnar window-breaking rod form a top-fitting engagement. Under normal conditions, the top part is locked and fixed in the locking port, and the high-pressure spring is in a compressed state. When the control unit starts the motor, the torque of the motor is transmitted to the launching component through the transmission component. The launching component causes the top part to instantly disengage from the locking port and slide in the inner slide of the track. The high-pressure spring drives the columnar window-breaking rod to quickly eject outward and break the window.

[0003] The transmitter requires a corresponding motor as a drive mechanism, resulting in a complex product structure, high cost, and the inability to achieve good waterproof performance due to the use of electronic components. Summary of the Invention

[0004] To address the aforementioned problems, the present invention provides a liquid emitter and a combined liquid-emitting glass-breaking device incorporating the device: A liquid ejector includes a first tube, a piston switch, a piston head, and a thrust spring. The outer end of the first tube is detachably threaded with a sealing head, which has a central injection hole. The first tube contains a liquid storage chamber communicating with the central injection hole. The liquid storage chamber, piston head, and thrust spring are sequentially arranged within the first tube. One end of the thrust spring is connected to a fixed partition fixedly installed at the inner end of the first tube cavity, and the other end is connected to the piston head. The thrust spring exerts an elastic force on the piston head, causing it to squeeze the liquid storage chamber. The piston head and the liquid storage chamber form a piston-like fit. An annular locking groove is provided on the side of the piston head near the thrust spring, and this groove forms a locking connection with the piston switch. The piston switch controls the fixation or movement of the piston head relative to the first tube. Normally, the piston switch locks the piston head. When the piston switch unlocks the piston head, the elastic force of the thrust spring on the piston head causes the piston head to squeeze the liquid storage chamber, causing the liquid in the storage chamber to be ejected from the central injection hole.

[0005] Preferably, a sealing ring is fitted between the sealing head and the first tube body. The sealing ring improves the sealing performance between the sealing head and the first tube body. A connecting strip is integrally connected to the sealing ring, and a rubber plug is integrally connected to the outer end of the connecting strip. Under normal conditions, the rubber plug and the central injection hole form a blocking seal, preventing liquid leakage from the storage chamber. When the piston head squeezes the storage chamber, the liquid inside breaks through the rubber plug and is ejected outwards. The rubber plug is fixedly connected to the sealing ring via the connecting strip, preventing it from detaching from the launcher and impacting the target's face or eyes during high-speed liquid ejection, thus avoiding injury.

[0006] Preferably, the piston switch includes a rocker arm and a radial screw. The lower part of the rocker arm is provided with a through hole. The radial screw moves through the through hole and forms a threaded connection with the threaded hole provided on the upper surface of the first tube. One end of the rocker arm is provided with a hook part. The hook part passes through the locking port provided on the upper surface of the first tube and forms a locking fit with the annular locking groove of the piston head. The other end of the rocker arm is tilted upward relative to the first tube. When the tilted end of the rocker arm is pressed down by force, the rocker arm uses the contact point with the first tube as the fulcrum to control the hook part to disengage from the annular locking groove. At this time, the piston head squeezes the liquid in the storage chamber and sprays it out from the central injection hole under the elastic force of the thrust spring.

[0007] Preferably, the piston switch further includes an arc-shaped elastic rod. The radial screw moves through the through holes provided at the bottom of both the rocker arm and the arc-shaped elastic rod. The arc-shaped elastic rod is disposed between the rocker arm and the first tube body. The middle part of the arc-shaped elastic rod protrudes relative to the first tube body and abuts against the surface of the first tube body. When the rocker arm is pressed down by force, the rocker arm uses the contact point between the arc-shaped elastic rod and the first tube body as the fulcrum to control the hook part to disengage from the annular locking groove. At this time, the piston head, under the elastic force of the thrust spring, squeezes the liquid in the storage chamber and ejects it from the central injection hole.

[0008] Preferably, the liquid launcher further includes a protective sleeve for preventing accidental activation that is movably fitted onto the first tube. The upper part of the protective sleeve for preventing accidental activation is provided with an open cavity adapted to the rocker arm. When the rocker arm is located in the open cavity, the protective sleeve for preventing accidental activation covers the rocker arm to prevent external force on the rocker arm. When the rocker arm slides out and leaves the open cavity, the rocker arm is exposed to the outside.

[0009] Preferably, the liquid emitter further includes a locking clamp that is fixedly sleeved onto the body of the first tube. A laser sight is installed at the bottom of the locking clamp. The locking clamp is located on the side of the anti-maloperation protective sleeve closer to the outer end of the first tube. The locking clamp and the anti-maloperation protective sleeve form a limiting fit. The lower part of the anti-maloperation protective sleeve is provided with a switch part corresponding to the laser sight. When the anti-maloperation protective sleeve slides towards the locking clamp, the rocker arm is exposed and the switch part is adapted to the laser sight to control the activation of the laser sight.

[0010] Preferably, one end of the laser sight is fixedly connected to the bottom of the locking clamp, and the lower end face of the laser sight is provided with an outwardly protruding sliding switch. The switch part is a U-shaped sleeve, and the U-shaped sleeve has a square cavity adapted to the laser sight. When the anti-maloperation protective sleeve slides relative to one side of the locking clamp, the laser sight slides into the square cavity. At this time, the U-shaped sleeve contacts and moves the sliding switch, thereby activating the laser sight.

[0011] Preferably, the bottom of the anti-misoperation protective sleeve has an outwardly protruding cylindrical protrusion, and a cylindrical cavity is provided inside the cylindrical protrusion. A ball screw is threaded into the cylindrical cavity. The ball screw includes a damping steel ball and a damping spring. The damping steel ball elastically abuts against the lower surface of the first tube. The damping spring generates an elastic force on the damping steel ball, causing it to elastically abut against the lower surface of the first tube. The ball screw provides a corresponding damping force for the sliding of the anti-misoperation protective sleeve, preventing the anti-misoperation protective sleeve from sliding easily. The user can control the damping between the ball screw and the first tube by controlling the depth of the ball screw in the cylindrical cavity.

[0012] A combined liquid-electrode glass-breaking device includes a first tube assembly and a second tube assembly. The first tube assembly is the liquid emitter, and the second tube assembly is either the glass-breaking device or the liquid emitter. Both the first and second tube assemblies have tubular structures, and their inner ends are detachably connected in series. This application achieves flexible combination and installation methods by using detachable series connections such as threaded connections or snap-fit ​​connections, allowing for both combined installation of the liquid emitter and the glass-breaking device and by detachably connecting two liquid emitters.

[0013] Preferably, it also includes an intermediate connector, which includes an intermediate tube body and two threaded connection ends that are integrally located at both ends of the intermediate tube body. The intermediate tube body, the first tube assembly, and the second tube assembly have the same outer diameter. The two threaded connection ends form a detachable threaded connection with the first tube assembly and the second tube assembly, respectively.

[0014] Beneficial Effects: The liquid ejector described in this application forms a locking connection between the piston head and the piston switch via an annular locking groove. The user unlocks or locks the piston head using the piston switch. Normally, the piston switch locks the piston head. When the piston switch unlocks the piston head, the elastic force of the thrust spring on the piston head causes the piston head to squeeze the liquid storage chamber, causing the liquid in the storage chamber to be ejected from the central injection hole. This product adopts a purely mechanical structure, which is simple to produce and promote, and requires no electronic components, thus resulting in low cost and good waterproof and durable performance. Furthermore, the product does not require any high-pressure air chamber structure, ensuring a high safety factor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Example 1. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of Example 1. Figure 2 .

[0017] Figure 3 This is a top view of Example 1.

[0018] Figure 4 This is an internal schematic diagram of Example 1.

[0019] Figure 5 This is a front view schematic diagram of Example 1.

[0020] Figure 6 This is a schematic diagram of the structure of Example 2.

[0021] Figure 7 This is a front view schematic diagram of Example 2.

[0022] Reference numerals: 1. First tube assembly; 2. Second tube assembly; 3. Piston head; 4. Thrust spring; 5. Sealing end; 6. Central injection hole; 7. Fixed partition; 8. Annular locking groove; 9. Rocker arm; 10. Arc-shaped elastic rod; 11. Radial screw; 12. Hook part; 13. Anti-misoperation protective sleeve; 14. Opening slide cavity; 15. Locking clamp; 16. Laser sight; 17. Slide switch; 18. U-shaped sleeve part; 19. Columnar protrusion part; 20. Damping steel ball; 21. Damping spring; 22. Intermediate connector; 23. Intermediate tube body part; 24. Threaded connection end; 25. Liquid storage chamber; 26. Sealing ring; 27. Connecting strip; 28. Rubber plug; 29. ​​First tube body. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described with reference to Examples 1-2.

[0024] Example 1: As Figure 1-5As shown, a combined liquid-electrode glass-breaking device includes a first tube assembly 1 and a second tube assembly 2. The first tube assembly 1 is a liquid emitter, and the second tube assembly 2 is a glass-breaking device. Both the first tube assembly 1 and the second tube assembly 2 have tubular structures, and their inner ends are detachably connected in series via threads. The glass-breaking device described in this application adopts a portable mechanical glass-breaking device disclosed in application number 2020214933151 filed by the applicant on July 24, 2020. The detachable threaded connection effect can be achieved by setting corresponding threaded protrusions at the end of the portable mechanical glass-breaking device.

[0025] The liquid launcher includes a first tube 29, a piston switch, a piston head 3, and a thrust spring 4. The outer end of the first tube 29 is detachably threaded with a sealing head 5. The sealing head 5 has a central injection hole 6 in the middle. The first tube 29 has a liquid storage chamber 25 communicating with the central injection hole 6. The liquid storage chamber 25, the piston head 3, and the thrust spring 4 are sequentially arranged inside the first tube 29. One end of the thrust spring 4 is connected to a fixed partition 7 fixedly installed at the inner end of the cavity of the first tube 29, and the other end of the thrust spring 4 is connected to the piston head 3. The thrust spring 4 is used to generate an elastic force on the piston head 3 to squeeze the liquid storage chamber 25. The piston head 3 and the liquid storage chamber 25 form a piston-like fit. The piston head 3 is provided with an annular locking groove 8 on the side near the thrust spring 4. The annular locking groove 8 forms a locking connection with the piston switch. The piston switch is used to control the fixation or movement of the piston head 3 relative to the first tube 29. Under normal conditions, the piston switch locks the piston head 3. When the piston switch unlocks the piston head 3, the elastic force of the thrust spring 4 on the piston head 3 causes the piston head 3 to squeeze the liquid storage chamber 25, causing the liquid in the liquid storage chamber 25 to be ejected from the central injection hole 6.

[0026] like Figure 4 As shown, a sealing ring 26 is fitted between the sealing head 5 and the first tube body 29. The sealing ring 26 is used to improve the sealing performance between the sealing head 5 and the first tube body 29. The sealing ring 26 is integrally connected to a connecting strip 27. The outer end of the connecting strip 27 is integrally connected to a rubber plug 28. Under normal conditions, the rubber plug 28 and the central injection hole 6 form a blocking and sealing fit. The rubber plug 28 is used to prevent the liquid in the liquid storage chamber 25 from leaking out. When the piston head 3 squeezes the liquid storage chamber 25, the liquid in the liquid storage chamber 25 breaks through the rubber plug 28 and sprays outward.

[0027] like Figure 4As shown, the piston switch includes a rocker arm 9, an arc-shaped elastic rod 10, and a radial screw 11. Both the rocker arm 9 and the arc-shaped elastic rod 10 have through holes at their lower parts. The radial screw 11 moves through the through holes and forms a threaded connection with a threaded hole on the upper surface of the first tube 29. One end of the rocker arm 9 has a hook portion 12, which passes through a locking opening on the upper surface of the first tube 29 and engages with the annular locking groove 8 of the piston head 3. The other end of the rocker arm 9 is opposite to the first tube... The body 29 is tilted upwards, and the arc-shaped elastic rod 10 is disposed between the rocker arm 9 and the first tube body 29. The middle part of the arc-shaped elastic rod 10 protrudes from the side opposite to the first tube body 29 and abuts against the surface of the first tube body 29. When the tilter arm 9 is pressed down by force, the rocker arm 9 uses the contact point between the arc-shaped elastic rod 10 and the first tube body 29 as the fulcrum to control the hook part 12 to disengage from the annular locking groove 8. At this time, the piston head 3 squeezes the liquid in the liquid storage chamber 25 and sprays it out from the central injection hole 6 under the elastic force of the thrust spring 4.

[0028] The liquid launcher also includes a protective sleeve 13 for preventing accidental activation that is movably fitted onto the first tube 29 and a locking clamp 15 that is fixedly fitted onto the outside of the first tube 29. The upper part of the protective sleeve 13 is provided with an open sliding cavity 14 adapted to the rocker arm 9. When the rocker arm 9 is located in the open sliding cavity 14, the protective sleeve 13 covers the rocker arm 9 to prevent external force on the rocker arm 9. When the rocker arm 9 slides out and disengages from the open sliding cavity 14, the rocker arm 9 is exposed to the outside. A laser sight 16 is installed at the bottom of the locking clamp 15. The locking clamp 15 is located on the side of the anti-maloperation protective sleeve 13 near the outer end of the first tube 29. The locking clamp 15 and the anti-maloperation protective sleeve 13 form a limiting fit. The lower part of the anti-maloperation protective sleeve 13 is provided with a switch part corresponding to the laser sight 16. When the anti-maloperation protective sleeve 13 slides towards the locking clamp 15, the rocker arm 9 is exposed and the switch part is adapted to the laser sight 16 to control the start of the laser sight 16. The bottom of the anti-maloperation protective sleeve 13 is provided with an outwardly protruding cylindrical protrusion 19. The cylindrical protrusion 19 has a cylindrical cavity, and a ball screw is threaded into the cylindrical cavity. The ball screw includes a damping steel ball 20 and a damping spring 21. The damping steel ball 20 is elastically fitted against the lower surface of the first tube 29. The damping spring 21 is used to generate an elastic force on the damping steel ball 20, causing it to elastically abut against the lower surface of the first tube 29. The ball screw provides a corresponding damping force for the sliding of the anti-maloperation protective sleeve 13, preventing the anti-maloperation protective sleeve 13 from sliding easily.

[0029] One end of the laser sight 16 is fixedly connected to the bottom of the locking clamp 15. The lower end face of the laser sight 16 has an outwardly protruding sliding switch 17. The switch portion is a U-shaped sleeve 18, which has a built-in square cavity adapted to the laser sight 16. When the anti-maloperation protective sleeve 13 slides relative to one side of the locking clamp 15, the laser sight 16 slides into the square cavity. At this time, the U-shaped sleeve 18 contacts and activates the sliding switch 17, thereby starting the laser sight 16. The laser sight 16 described in this application is directly purchased from the existing market, and therefore will not be described in detail.

[0030] Example 2: As Figure 6-7 As shown, a combined liquid-ejector glass-breaking device includes a first tube assembly 1, a second tube assembly 2, and an intermediate connector 22. Both the first tube assembly 1 and the second tube assembly 2 are liquid ejectors, and their inner ends are detachably connected in series via threads. The intermediate connector 22 includes a central tube body 23 and two integrally formed threaded connection ends 24 located at both ends of the central tube body 23. The central tube body 23, the first tube assembly 1, and the second tube assembly 2 are tubular structures with the same outer diameter. The two threaded connection ends 24 form detachable threaded connections with the first tube assembly 1 and the second tube assembly 2, respectively.

[0031] The liquid launcher includes a first tube 29, a piston switch, a piston head 3, and a thrust spring 4. The outer end of the first tube 29 is detachably threaded with a sealing head 5. The sealing head 5 has a central injection hole 6 in the middle. The first tube 29 has a liquid storage chamber 25 communicating with the central injection hole 6. The liquid storage chamber 25, the piston head 3, and the thrust spring 4 are sequentially arranged inside the first tube 29. One end of the thrust spring 4 is connected to a fixed partition 7 fixedly installed at the inner end of the cavity of the first tube 29, and the other end of the thrust spring 4 is connected to the piston head 3. The thrust spring 4 is used to generate an elastic force on the piston head 3 to squeeze the liquid storage chamber 25. The piston head 3 and the liquid storage chamber 25 form a piston-like fit. The piston head 3 is provided with an annular locking groove 8 on the side near the thrust spring 4. The annular locking groove 8 forms a locking connection with the piston switch. The piston switch is used to control the fixation or movement of the piston head 3 relative to the first tube 29. Under normal conditions, the piston switch locks the piston head 3. When the piston switch unlocks the piston head 3, the elastic force of the thrust spring 4 on the piston head 3 causes the piston head 3 to squeeze the liquid storage chamber 25, causing the liquid in the liquid storage chamber 25 to be ejected from the central injection hole 6.

[0032] A sealing ring 26 is fitted between the sealing head 5 and the first tube body 29. The sealing ring 26 is used to improve the sealing performance between the sealing head 5 and the first tube body 29. The sealing ring 26 is integrally connected to a connecting strip 27. The outer end of the connecting strip 27 is integrally connected to a rubber plug 28. Under normal conditions, the rubber plug 28 and the central injection hole 6 form a blocking seal. The rubber plug 28 is used to prevent the liquid in the liquid storage chamber 25 from leaking out. When the piston head 3 squeezes the liquid storage chamber 25, the liquid in the liquid storage chamber 25 breaks through the rubber plug 28 and sprays outward.

[0033] The piston switch includes a rocker arm 9, an arc-shaped elastic rod 10, and a radial screw 11. Both the rocker arm 9 and the arc-shaped elastic rod 10 have through holes at their lower parts. The radial screw 11 moves through the through holes and forms a threaded connection with a threaded hole on the upper surface of the first tube 29. One end of the rocker arm 9 has a hook portion 12, which passes through a locking opening on the upper surface of the first tube 29 and engages with the annular locking groove 8 of the piston head 3. The other end of the rocker arm 9 is opposite the first tube 29. 9. The rocker arm 9 is tilted upwards. The arc-shaped elastic rod 10 is located between the rocker arm 9 and the first tube 29. The middle part of the arc-shaped elastic rod 10 protrudes from the side opposite to the first tube 29 and abuts against the surface of the first tube 29. When the tilter arm 9 is pressed down by force, the rocker arm 9 uses the contact point between the arc-shaped elastic rod 10 and the first tube 29 as the fulcrum to control the hook part 12 to disengage from the annular locking groove 8. At this time, the piston head 3 squeezes the liquid in the liquid storage chamber 25 and sprays it out from the central injection hole 6 under the elastic force of the thrust spring 4.

[0034] The liquid launcher also includes a protective sleeve 13 for preventing accidental activation that is movably fitted onto the first tube 29 and a locking clamp 15 that is fixedly fitted onto the outside of the first tube 29. The upper part of the protective sleeve 13 is provided with an open sliding cavity 14 adapted to the rocker arm 9. When the rocker arm 9 is located in the open sliding cavity 14, the protective sleeve 13 covers the rocker arm 9 to prevent external force on the rocker arm 9. When the rocker arm 9 slides out and disengages from the open sliding cavity 14, the rocker arm 9 is exposed to the outside. A laser sight 16 is installed at the bottom of the locking clamp 15. The locking clamp 15 is located on the side of the anti-maloperation protective sleeve 13 near the outer end of the first tube 29. The locking clamp 15 and the anti-maloperation protective sleeve 13 form a limiting fit. The lower part of the anti-maloperation protective sleeve 13 is provided with a switch part corresponding to the laser sight 16. When the anti-maloperation protective sleeve 13 slides towards the locking clamp 15, the rocker arm 9 is exposed and the switch part is adapted to the laser sight 16 to control the start of the laser sight 16. The bottom of the anti-maloperation protective sleeve 13 is provided with an outwardly protruding cylindrical protrusion 19. The cylindrical protrusion 19 has a cylindrical cavity, and a ball screw is threaded into the cylindrical cavity. The ball screw includes a damping steel ball 20 and a damping spring 21. The damping steel ball 20 is elastically fitted against the lower surface of the first tube 29. The damping spring 21 is used to generate an elastic force on the damping steel ball 20, causing it to elastically abut against the lower surface of the first tube 29. The ball screw provides a corresponding damping force for the sliding of the anti-maloperation protective sleeve 13, preventing the anti-maloperation protective sleeve 13 from sliding easily.

[0035] The laser sight 16 is fixedly connected at one end to the bottom of the locking clamp 15. The lower end face of the laser sight 16 has an outwardly protruding sliding switch 17. The switch portion is a U-shaped sleeve 18, which has a built-in square cavity adapted to the laser sight 16. When the anti-maloperation protective sleeve 13 slides relative to one side of the locking clamp 15, the laser sight 16 slides into the square cavity. At this time, the U-shaped sleeve 18 contacts and actuates the sliding switch 17, thereby activating the laser sight 16. The laser sight 16 described in this application is directly purchased from the existing market, and therefore will not be described in detail. Figure 6-7 As shown, the lower part of the U-shaped sleeve 18 facing away from the laser sight 16 has a chamfered part. The chamfered part is used to prevent the sharp corner area from hitting the user's hand and improve the user experience.

[0036] Obviously, the above embodiments of the present invention are merely illustrative examples and not intended to limit the implementation of the invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. However, these obvious variations or modifications derived from the essential spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. A liquid emitter, characterized in that: The liquid launcher includes a first tube (29), a piston switch, a piston head (3), and a thrust spring (4). The outer end of the first tube (29) is detachably threaded with a sealing head (5). The sealing head (5) has a central injection hole (6) in the middle. The first tube (29) has a liquid storage chamber (25) communicating with the central injection hole (6). The liquid storage chamber (25), piston head (3), and thrust spring (4) are sequentially arranged inside the first tube (29). One end of the thrust spring (4) is connected to a fixed partition (7) fixedly installed at the inner end of the cavity of the first tube (29), and the other end of the thrust spring (4) is connected to the piston head (3). The piston head (3) is used to generate an elastic force that causes it to squeeze the liquid storage chamber (25). The piston head (3) and the liquid storage chamber (25) form a piston fit. The piston head (3) is provided with an annular locking groove (8) on the side near the thrust spring (4). The annular locking groove (8) and the piston switch form a locking connection. The piston switch is used to control the fixing or movement of the piston head (3) relative to the first tube body (29). Under normal conditions, the piston switch locks the piston head (3). When the piston switch unlocks the piston head (3), the elastic force of the thrust spring (4) on the piston head (3) causes the piston head (3) to squeeze the liquid storage chamber (25), causing the liquid in the liquid storage chamber (25) to be ejected from the central injection hole (6).

2. A liquid launcher according to claim 1, characterized in that: A sealing ring (26) is fitted between the sealing head (5) and the first tube body (29). The sealing ring (26) is used to improve the sealing performance between the sealing head (5) and the first tube body (29). The sealing ring (26) is integrally connected to a connecting strip (27). The outer end of the connecting strip (27) is integrally connected to a rubber plug (28). Under normal conditions, the rubber plug (28) and the central injection hole (6) form a blocking seal. The rubber plug (28) is used to prevent the liquid in the storage chamber (25) from leaking out. When the piston head (3) squeezes the storage chamber (25), the liquid in the storage chamber (25) breaks through the rubber plug (28) and sprays outward.

3. A liquid launcher according to claim 1, characterized in that: The piston switch includes a rocker arm (9) and a radial screw (11). The lower part of the rocker arm (9) is provided with a through hole. The radial screw (11) moves through the through hole and forms a threaded connection with the threaded hole provided on the upper surface of the first tube (29). One end of the rocker arm (9) is provided with a hook part (12). The hook part (12) passes through the locking port provided on the upper surface of the first tube (29) and forms a locking fit with the annular locking groove (8) of the piston head (3). The other end of the rocker arm (9) is tilted upward relative to the first tube (29). When the tilted end of the rocker arm (9) is pressed down by force, the rocker arm (9) uses the contact point with the first tube (29) as the fulcrum to control the hook part (12) to disengage from the annular locking groove (8). At this time, the piston head (3) squeezes the liquid in the liquid storage chamber (25) from the central injection hole (6) under the elastic force of the thrust spring (4).

4. A liquid launcher according to claim 3, characterized in that: The piston switch also includes an arc-shaped elastic rod (10). The radial screw (11) moves through the holes provided at the bottom of both the rocker arm (9) and the arc-shaped elastic rod (10). The arc-shaped elastic rod (10) is located between the rocker arm (9) and the first tube (29). The middle part of the arc-shaped elastic rod (10) protrudes from the side opposite to the first tube (29) and abuts against the surface of the first tube (29). When the rocker arm (9) is pressed down by force, the rocker arm (9) uses the contact point between the arc-shaped elastic rod (10) and the first tube (29) as the fulcrum to control the hook part (12) to disengage from the annular locking groove (8). At this time, the piston head (3) squeezes the liquid in the storage chamber (25) from the central injection hole (6) under the elastic force of the thrust spring (4).

5. A liquid launcher according to claim 3, characterized in that: The liquid launcher also includes a protective sleeve (13) for preventing accidental activation that is movably fitted onto the first tube (29). The upper part of the protective sleeve (13) is provided with an open cavity (14) adapted to the rocker arm (9). When the rocker arm (9) is located in the open cavity (14), the protective sleeve (13) covers the rocker arm (9) to prevent the rocker arm (9) from being subjected to external force. When the rocker arm (9) slides out and leaves the open cavity (14), the rocker arm (9) is exposed to the outside.

6. A liquid launcher according to claim 5, characterized in that: The liquid emitter also includes a locking clamp (15) that is fixedly sleeved on the outside of the first tube (29). A laser sight (16) is installed at the bottom of the locking clamp (15). The locking clamp (15) is located on the side of the anti-maloperation protective sleeve (13) closer to the outer end of the first tube (29). The locking clamp (15) and the anti-maloperation protective sleeve (13) form a limiting fit. The lower part of the anti-maloperation protective sleeve (13) is provided with a switch part corresponding to the laser sight (16). When the anti-maloperation protective sleeve (13) slides to the locking clamp (15), the rocker arm (9) is exposed and the switch part is adapted to the laser sight (16) to control the start of the laser sight (16).

7. A liquid launcher according to claim 6, characterized in that: One end of the laser sight (16) is fixedly connected to the bottom of the locking clamp (15). The lower end face of the laser sight (16) is provided with an outwardly protruding sliding switch (17). The switch part is a U-shaped sleeve (18). The U-shaped sleeve (18) has a square cavity adapted to the laser sight (16). When the anti-maloperation protective sleeve (13) slides relative to the locking clamp (15), the laser sight (16) slides into the square cavity. At this time, the U-shaped sleeve (18) contacts and moves the sliding switch (17), thereby activating the laser sight (16).

8. A combined liquid-cooled glass-breaking device, characterized in that: It includes a first tube assembly (1) and a second tube assembly (2), wherein the first tube assembly (1) is a liquid emitter according to any one of claims 1-7, and the second tube assembly (2) is a glass breaking device or a liquid emitter according to any one of claims 1-7. Both the first tube assembly (1) and the second tube assembly (2) are tubular structures, and the relative inner ends of the first tube assembly (1) and the second tube assembly (2) are detachably connected in series.

9. A combined liquid-cooled glass-breaking device according to claim 8, characterized in that: It also includes an intermediate connector (22), which includes an intermediate tube body (23) and two threaded connection ends (24) that are integrally located at both ends of the intermediate tube body (23). The intermediate tube body (23), the first tube assembly (1) and the second tube assembly (2) have the same outer diameter. The two threaded connection ends (24) form a detachable threaded connection with the first tube assembly (1) and the second tube assembly (2) respectively.

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