Pneumatic plastic beautifying boosting device

Abstract

The invention relates to the field of modeling equipment, and particularly discloses a pneumatic modeling boosting device which comprises a gun body with a first air chamber, a second air chamber and a valve cavity, the first air chamber is connected with an air inlet pipe, and a piston and a firing pin are arranged in the second air chamber; the first air chamber and the second air chamber are communicated through a first vent hole, a control valve is arranged on the air outlet side of the first vent hole, a trigger is arranged on the gun body, and the trigger can control opening and closing of the first vent hole by pressing the control valve. The piston is connected with the firing pin through a limiting sleeve, a limiting ring is arranged in an inner cavity of the limiting sleeve, a friction ring is arranged at the top of the firing pin and arranged above the limiting ring, and the diameter of the friction ring is larger than the hole diameter of the limiting ring. By the adoption of the method and device, the preset technological requirement can be met through low air pressure, the requirement for corollary equipment is low, and operation and control are easy.

Description

Technical Field

[0001] The present invention relates to a mesotherapy device, and more particularly to a pneumatic mesotherapy boosting device. Background Art

[0002] Needle-free injection is a technique that directly introduces drugs or cosmetic ingredients into the skin or subcutaneous tissue by means of high pressure, high-speed air flow or mechanical power, etc., without the need for traditional needle puncture. In the field of medical aesthetics, it has gradually attracted attention due to the characteristics of "non-invasive and low pain". The mesotherapy boosting device is used to connect a non-invasive syringe and is the main driving and controlling device for non-invasive injection.

[0003] The existing mesotherapy boosting device includes a switching valve, a firing mechanism and an air intake mechanism. The air intake mechanism is connected to the firing mechanism through the switching valve. The operator controls the high-pressure gas in the air intake mechanism to enter the firing mechanism through the switching valve. The firing pin of the firing mechanism rushes into the non-invasive syringe, providing instantaneous pressure for the non-invasive syringe and spraying the active ingredients in the non-invasive syringe at high speed. The existing firing pin is directly driven by high-pressure gas, lacking the ability of instantaneous energy release, resulting in the speed of the active ingredients in the non-invasive syringe not meeting the requirements. In addition, the needle-free injection process requires fine operation by the operator. The existing switching valve directly controls the opening and closing of the air passage through the valve core. A large thrust needs to be applied by the valve core during the opening process of the air passage, and the operator needs to apply a large pressure to the button, which is likely to cause deviation in position and affect the medical aesthetic effect. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a pneumatic mesotherapy boosting device, in which the terminal speed of the firing pin is faster, the predetermined process requirements can be achieved by using a lower air pressure, the requirements for supporting equipment are low, and it is easy to operate.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a pneumatic mesotherapy boosting device, including a gun body having a first air chamber, a second air chamber and a valve cavity. The first air chamber is connected to an air inlet pipe, and a piston and a firing pin are provided in the second air chamber; the first air chamber and the second air chamber are communicated through a first ventilation hole, and a control valve is provided on the air outlet side of the first ventilation hole. A trigger is provided on the gun body, and the trigger can control the opening and closing of the first ventilation hole by pressing the control valve; the piston is connected to the firing pin through a limit sleeve, a limit ring is provided in the inner cavity of the limit sleeve, a friction ring is provided on the top of the firing pin, the friction ring is located above the limit ring, and the diameter of the friction ring is larger than the aperture of the limit ring.

[0006] As an improvement of the above solution, an air passage is further provided on the firing pin, extending from its top surface to the side wall surface below the friction ring; a return spring is provided between the piston and the second air chamber.

[0007] As an improvement to the above solution, the control valve is disposed in the valve cavity and includes a floating valve member, a valve core member, a thimble and a valve cover. The floating valve member includes a sealing end, a socket cavity, a power ring and a first air passage communicating from the top surface of the floating valve member to the socket cavity. The sealing end is used to block the first vent hole. The power ring is located outside the socket cavity and abuts against the side wall of the valve cavity. The valve core member is fixedly disposed in the valve cavity and includes a valve core column and a valve core seat. The valve core column is disposed in the center of the valve core seat and sleeved in the socket cavity. The valve core member has a second air passage communicating from the top surface of the valve core column to the bottom surface of the valve core seat. The valve core seat has a third air passage communicating its upper surface and bottom surface. The valve cover is disposed at the bottom of the valve cavity and is provided with a limiting hole. The thimble is disposed in the limiting hole, the bottom abuts against the trigger, and the top can be driven by the trigger to press against the bottom surface of the valve core seat so as to block the second air passage.

[0008] As an improvement to the above solution, the valve cavity includes an upper valve cavity and a lower valve cavity that communicate with each other. The floating valve member is located in the upper valve cavity. A stepped portion is provided at the junction of the upper valve cavity and the lower valve cavity. The valve core seat is pressed by the valve cover against the stepped portion.

[0009] As an improvement to the above solution, the gun body includes a horizontally disposed handle portion and a working portion vertically disposed at the front end of the handle portion. The first air chamber is located in the handle portion. The second air chamber is located in the working portion. The air inlet pipe is disposed at the rear end of the handle portion.

[0010] As an improvement to the above solution, an exhaust passage is further provided in the handle portion. The exhaust passage is disposed below the first air chamber. The exhaust passage communicates with the second air chamber through a second vent hole. The sealing end is provided with a first seal for blocking the first vent hole. A second seal for blocking the second vent hole is provided on the outer side wall of the floating valve member.

[0011] As an improvement to the above solution, a first air capacitance chamber is provided at the bottom of the floating valve member. A second air capacitance chamber is provided at the top of the valve cover. The third air passage communicates the first air capacitance chamber and the second air capacitance chamber.

[0012] As an improvement to the above solution, the thimble includes a limiting column and a conical portion provided at the top of the limiting column. The limiting column is disposed in the limiting hole. A third seal is provided at the connection between the conical portion and the limiting column.

[0013] As an improvement of the above solution, an adjusting mechanism is provided at the top of the working part. The adjusting mechanism includes a top cover, a knob and an adjusting screw. The top cover is arranged at the top of the second air chamber. The adjusting screw is threadedly connected with the top cover. The top of the adjusting screw is fixedly connected with the knob. The bottom of the adjusting screw extends into the second air chamber. By rotating the knob, the depth of the adjusting screw extending into the second air chamber can be controlled.

[0014] As an improvement of the above solution, a lower cover is provided at the lower part of the second air chamber; the lower cover is provided with a striker guiding part, and the striker can extend outwards from the striker guiding part.

[0015] Implementing the embodiments of the present invention has the following beneficial effects:

[0016] Adopting the above structure, the terminal speed of the striker is faster, and the predetermined process requirements can be achieved by using a lower air pressure. The requirements for supporting equipment are low and it is easy to operate.

[0017] Adopting the above control valve, the thimble is less affected by the gas pressure in the first air capacitance chamber. Therefore, the operator only needs to apply a small force to push the thimble to move, thereby controlling the supply of compressed gas. The operation is sensitive and fast, and it is convenient to be applied in fields such as medical aesthetics that require fine operations. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of a pneumatic aesthetic plastic boosting device of the present invention;

[0019] Figure 2 is the exploded view of a pneumatic aesthetic plastic boosting device of the present invention;

[0020] Figure 3 is the cross-sectional view of a pneumatic aesthetic plastic boosting device of the present invention;

[0021] Figure 4 is Figure 3 the enlarged view of part A of

[0022] Figure 5 is the assembly structural schematic diagram of the piston and the striker of the present invention;

[0023] Figure 6 is the airflow schematic diagram of the working state of a pneumatic aesthetic plastic boosting device of the present invention. Detailed Embodiments

[0024] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside and outside that appear or will appear in the present invention are only based on the drawings of the present invention, and they are not specific limitations on the present invention.

[0025] As shown Figures 1 - 3 in the figure, a pneumatic beauty shaping booster device is provided in a specific embodiment of the present invention, which includes a gun body 1 having a first air chamber 11, a second air chamber 12 and a valve chamber 13. The first air chamber 11 is connected to an air inlet pipe 14. A piston 2 and a firing pin 3 are arranged in the second air chamber 12. The first air chamber 11 and the second air chamber 12 are communicated through a first ventilation hole 15. A control valve 4 is arranged on the air outlet side of the first ventilation hole 15. A trigger 5 is arranged on the gun body 1. The trigger 5 can control the opening and closing of the first ventilation hole 15 by pressing the control valve 4. Combined Figure 5 as shown in the figure, the piston 2 is connected to the firing pin 3 through a limit sleeve 6. A limit ring 61 is arranged in the inner cavity of the limit sleeve 6. A friction ring 31 is arranged at the top of the firing pin 3. The friction ring 31 is arranged above the limit ring 61, and the diameter of the friction ring 31 is larger than the aperture of the limit ring 61. Preferably, the firing pin 3 is further provided with an air passage 32 extending from its top surface to the side wall surface below the friction ring 31. A return spring 21 is arranged between the piston 2 and the second air chamber 12.

[0026] As shown Figure 6 in the figure, during the working process, the operator installs a matching syringe on the gun body 1. When the trigger 5 is pressed, the control valve 4 connects the first air chamber 11 and the second air chamber 12, and high-pressure gas enters the second air chamber 12, pushing the piston 2 to move downward. In the initial state, the friction ring 31 of the firing pin 3 abuts against the limit ring 61 of the limit sleeve 6, and there is a certain distance between the top of the thimble and the piston 2. When the firing pin 3 follows the piston 2 and descends to a predetermined position, the resistance of the firing pin 3 to the syringe increases, and the firing pin 3 stops moving. The piston 2 continues to move downward under the drive of air pressure. When the bottom of the piston 2 contacts the top of the firing pin 3, due to the existence of the air passage 32, the air at the top of the firing pin 3 can quickly flow to the side of the firing pin 3 through the air passage 32. The momentum of the piston 2 is instantly transmitted to the firing pin 3, and the firing pin 3 rushes into the preset position of the syringe at high speed, pushing the effective substance in the syringe to be ejected, meeting the needs of medical aesthetics. With the above structure, the final speed of the firing pin 3 is faster, and the predetermined process requirements can be achieved by using a lower air pressure. The requirements for supporting equipment are low and it is easy to operate.

[0027] In some embodiments, the control valve 4 can be an existing general valve, which has a valve core directly connected to the trigger 5 and can be displaced by the drive of the trigger. When the valve core is in a predetermined position, it can block the first ventilation hole 15. When it is displaced by the drive of the trigger 5, it can open the first ventilation hole 15. In order to improve the operation convenience and operation accuracy of the trigger 5, a new control valve 4 is proposed in this embodiment. Combined Figure 4As shown, the control valve 4 is arranged in the valve cavity 13 and includes a floating valve member 41, a valve core member 42, a thimble 43 and a valve cover 44. The floating valve member 41 includes a sealing end 411, a socket cavity 412, a power ring 413 and a first air passage 414 that communicates from the top surface of the floating valve member 41 to the socket cavity 412. The sealing end 411 is used to block the first ventilation hole 15. The power ring 413 is located outside the socket cavity 412 and abuts against the side wall of the valve cavity 13. The valve core member 42 is fixedly arranged in the valve cavity 13 and includes a valve core column 421 and a valve core seat 422. The valve core column 421 is arranged in the center of the valve core seat 422 and sleeved in the socket cavity 412. The valve core member 42 has a second air passage 423 that communicates from the top surface of the valve core column 421 to the bottom surface of the valve core seat 422. The valve core seat 422 has a third air passage 424 that communicates its upper surface and bottom surface. The valve cover 44 is arranged at the bottom of the valve cavity 13 and is provided with a limiting hole 441. The thimble 43 is arranged in the limiting hole 441, abuts against the trigger 5 at the bottom, and can be driven by the trigger 5 at the top to closely adhere to the bottom surface of the valve core seat 422 so as to block the second air passage 423. A first air capacitance chamber 415 is arranged at the bottom of the floating valve member 41, and a second air capacitance chamber 442 is arranged at the top of the valve cover 44. The third air passage 424 communicates the first air capacitance chamber 415 and the second air capacitance chamber 442.

[0028] It should be noted that when the trigger 5 is in the released state, the thimble 43 is separated from the valve core member 42. The gas in the first air chamber 11 enters the second air passage 423 from the first air passage 414. After spraying out from the second air passage 423, it sequentially enters the second air capacitance chamber 442, the third air passage 424, and the first air capacitance chamber 415 to reach the bottom of the floating valve member 41. Since the bottom surface area of the floating valve member 41 is larger than the area of its sealing end 411, the air pressure will push the floating valve member 41 to rise, and the sealing end 411 will block the first ventilation hole 15, and the connection between the first air chamber 11 and the second air chamber 12 is blocked.

[0029] When the operator presses the trigger 5, the thimble 43 moves upward to block the outlet of the second air passage 423. The air in the second air capacitance chamber 442, the third air passage 424, and the first air capacitance chamber 415 will flow out from the gap between the thimble 43 and the limiting hole 441, causing a relatively low pressure to form on the bottom surface of the floating valve member 41. The floating valve member 41 moves downward, and the sealing end 411 leaves the first ventilation hole 15, and the first air chamber 11 and the second air chamber 12 are communicated.

[0030] With the above control valve 4, the thimble 43 is less affected by the gas pressure in the first air capacitance chamber 415. Therefore, the operator only needs to apply a small force to push the thimble 43 to move, thereby controlling the supply of compressed gas. The operation is sensitive and fast, and it is convenient to be applied in fields such as medical aesthetics that require fine operations.

[0031] In some embodiments, the valve cavity 13 includes an upper valve cavity 13a and a lower valve cavity 13b that communicate with each other. The floating valve member 41 is located in the upper valve cavity 13a. A stepped portion 131 is provided at the junction of the upper valve cavity 13a and the lower valve cavity 13b, and the valve core seat 422 is pressed by the valve cover 44 onto the stepped portion 131. With the cavity design of the upper and lower valve cavities, the floating valve member 41, the valve core member 42, the ejector pin 43, and the valve cover 44 only need to be sequentially installed into the valve cavity 13. The floating valve member 41 moves in the upper valve cavity 13a, and the valve core member 42 is fixed at a predetermined position in the valve cavity 13. Sealing designs are provided between the floating valve member 41, the valve core member 42, and the valve cover 44 and the valve cavity 13 to prevent gas from escaping through the gaps between the floating valve member 41, the valve core member 42, the valve cover 44, and the valve cavity 13.

[0032] Preferably, the gun body 1 includes a horizontally arranged handle portion 1a and a working portion 1b vertically provided at the front end of the handle portion 1a. The first air chamber 11 is located in the handle portion 1a, the second air chamber 12 is located in the working portion 1b, and the air inlet pipe 14 is provided at the rear end of the handle portion 1a. When the operator holds the handle portion 1a, the working portion 1b is naturally in the vertical direction, facilitating operation.

[0033] To achieve the rapid reset of the piston 2, an exhaust passage 16 is further provided in the handle portion 1a. The exhaust passage 16 is provided below the first air chamber 11, and the exhaust passage 16 communicates with the second air chamber 12 through a second vent hole 161. The sealing end 411 is provided with a first seal 416 for blocking the first vent hole 15. A second seal 417 for blocking the second vent hole 161 is provided on the outer side wall of the floating valve member 41. When the first vent hole 15 is closed, the piston 2 has a tendency to reset upward under the action of the return spring 21. At this time, the second seal 417 moves above the second vent hole 161, enabling the gas above the piston 2 to quickly be discharged through the exhaust passage 16, accelerating the reset speed of the piston 2 and shortening the working cycle of the firing pin 3.

[0034] Preferably, the ejector pin 43 includes a limiting post 431 and a conical portion 432 provided at the top of the limiting post 431. The limiting post 431 is provided in the limiting hole 441, and a third seal 433 is provided at the connection between the conical portion 432 and the limiting post 431. The third seal 433 is used to seal the limiting hole 441 when the bottom surface of the conical portion 432 abuts against the limiting hole 441 when the trigger 5 is released, preventing compressed gas from flowing out of the limiting hole 441 during daily use.

[0035] To control the working stroke of the firing pin 3, an adjusting mechanism is provided at the top of the working part 1b. The adjusting mechanism includes a top cover 71, a knob 72, and an adjusting screw 73. The top cover 71 is provided at the top of the second air chamber 12. The adjusting screw 73 is threadedly connected to the top cover 71. The top of the adjusting screw 73 is fixedly connected to the knob 72. The bottom of the adjusting screw 73 extends into the second air chamber 12. By rotating the knob 72, the depth of the adjusting screw 73 extending into the second air chamber 12 can be controlled. A scale can also be provided on the side of the top cover 71. An indicating member 74 extending to the side of the top cover 71 can be provided on the top cover 71. The indicating member 74 moves with the top cover 71. According to the relationship between the indicating member 74 and the scale, the current adjustment amount of the piston 2 stroke can be obtained.

[0036] In some embodiments, to facilitate assembly, a lower cover 8 is provided at the lower part of the second air chamber 12. The lower cover 8 is provided with a firing pin guiding portion 81. The firing pin 3 can extend outwards from the firing pin guiding portion 81. The lower cover 8 also serves as a connection mechanism for the corresponding syringe. After the corresponding syringe is installed on the lower cover 8, the firing pin 3 extends into the syringe and is connected to the corresponding actuating mechanism of the syringe.

[0037] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A pneumatic mesotherapy booster device, characterized in that: It comprises a gun body having a first air chamber, a second air chamber and a valve chamber, wherein the first air chamber is connected to an air inlet pipe, and a piston and a firing pin are arranged in the second air chamber; The first air chamber and the second air chamber are connected through a first vent hole, a control valve is provided on the air outlet side of the first vent hole, and a trigger is provided on the gun body, and the trigger can control the opening and closing of the first vent hole by pressing the control valve; The piston is connected to the striker through a limiting sleeve, the inner cavity of the limiting sleeve is provided with a limiting ring, the top of the striker is provided with a friction ring, the friction ring is arranged above the limiting ring, and the diameter of the friction ring is larger than the aperture of the limiting ring.

2. The pneumatic mesotherapy booster device according to claim 1, characterized in that: The striker is also provided with an air passage extending from its top surface to the side wall surface below the friction ring; a return spring is provided between the piston and the second air chamber.

3. The pneumatic mesotherapy booster device according to claim 1 or 2, characterized in that: The control valve is arranged in the valve cavity, and comprises a floating valve member, a valve core member, a ejector pin and a valve cover. The floating valve member comprises a sealing end, a sleeve cavity, a power ring and a first air passage connected from the top surface of the floating valve member to the sleeve cavity, the sealing end is used to block the first vent hole, the power ring is located outside the sleeve cavity and abuts against the side wall of the valve cavity; The valve core member is fixedly arranged in the valve cavity, and comprises a valve core column and a valve core seat, wherein the valve core column is arranged in the center of the valve core seat and sleeved in the sleeve cavity, the valve core member has a second air passage connected from the top surface of the valve core column to the bottom surface of the valve core seat, and the valve core seat has a third air passage connected with its upper surface and bottom surface; The valve cover is arranged at the bottom of the valve cavity and is provided with a limiting hole. The ejector pin is arranged in the limiting hole. The bottom abuts against the trigger, and the top can be driven by the trigger to be close to the bottom surface of the valve core seat to block the second air channel.

4. The pneumatic mesotherapy booster device according to claim 3, characterized in that: The valve cavity comprises an upper valve cavity and a lower valve cavity which are interconnected, and the floating valve member is located in the upper valve cavity; a step portion is provided at the junction of the upper valve cavity and the lower valve cavity, and the valve core seat is pressed against the step portion by the valve cover.

5. The pneumatic mesotherapy booster device according to claim 3, characterized in that: The gun body includes a handle portion arranged horizontally and a working portion arranged vertically at the front end of the handle portion, the first air chamber is located in the handle portion, the second air chamber is located in the working portion, and the air inlet pipe is arranged at the rear end of the handle portion.

6. The pneumatic mesotherapy booster device according to claim 5, characterized in that: An exhaust channel is also provided in the handle portion, and the exhaust channel is provided below the first air chamber. The exhaust channel is connected to the second air chamber through a second air vent; the sealing end is provided with a first sealing member for sealing the first air hole; the outer side wall of the floating valve member is provided with a second sealing member for sealing the second air hole.

7. The pneumatic mesotherapy booster device according to claim 3, characterized in that: A first air volume cavity is provided at the bottom of the floating valve member, a second air volume cavity is provided at the top of the valve cover, and the third air passage is connected with the first air volume cavity and the second air volume cavity.

8. The pneumatic mesotherapy booster device according to claim 3, characterized in that: The ejector pin comprises a limiting column and a conical portion arranged at the top of the limiting column, the limiting column is arranged in the limiting hole, and a third sealing member is arranged at the connection between the conical portion and the limiting column.

9. The pneumatic mesotherapy booster device according to claim 5, characterized in that: An adjustment mechanism is provided on the top of the working part, and the adjustment mechanism includes a top cover, a knob and an adjusting screw. The top cover is provided on the top of the second air chamber, the adjusting screw is connected to the top cover by threads, the top of the adjusting screw is fixedly connected to the knob, and the bottom of the adjusting screw extends into the second air chamber. By rotating the knob, the depth of the adjusting screw extending into the second air chamber can be controlled.

10. The pneumatic mesotherapy booster device according to claim 3, characterized in that: A lower cover is provided at the lower part of the second air chamber; the lower cover is provided with a striker guide portion, and the striker can extend outward from the striker guide portion.

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