A cylinder motion variation adjuster

Abstract

This invention discloses a cylinder motion change regulator, comprising a housing, inside which are sequentially connected an intake channel, a first air chamber, a second air chamber, a third air chamber, a volumetric cavity, and an exhaust channel. The intake end of the intake channel is connected to the cylinder outlet, and the exhaust end of the exhaust channel is connected to the air pump inlet. A first flow regulating valve is installed in the first air chamber and is used to regulate the air flow entering the first air chamber. A second flow regulating valve is installed in the second air chamber and is used to regulate the air flow entering the third air chamber from the second air chamber. A volumetric regulating valve is installed in the third air chamber and includes a valve body and a valve core assembly. The volumetric cavity is located inside the valve body, and the valve core assembly is movably installed in the volumetric cavity and is used to adjust the size of the volumetric cavity. Several vent holes for connecting to the third air chamber are opened on the side wall of the volumetric cavity, and the bottom of the volumetric cavity is connected to the exhaust channel. The regulator of this invention enables the cylinder motion to achieve positioning and deceleration, achieving two different motion states.

Description

Technical Field

[0001] This invention relates to the field of cylinder equipment technology, and in particular to a cylinder motion change regulator. Background Technology

[0002] A cylinder is a pneumatic actuator that converts the pressure energy of compressed gas into mechanical energy in pneumatic transmission. Currently, cylinder air path switching is achieved through solenoid valves. Using solenoid valves for cylinder motion control results in a high piston rod speed at the end of the cylinder's movement, leading to a greater impact force on the piston end cap and affecting the cylinder's lifespan. Therefore, it is necessary to develop and design a regulator that works in conjunction with the cylinder and enables it to achieve positioning and deceleration. Summary of the Invention

[0003] In view of the technical problems existing in the background art, the purpose of the present invention is to provide a cylinder motion change regulator, which can enable the cylinder motion to achieve positioning and deceleration, achieve two different motion states, and improve the service life of the cylinder.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A cylinder motion change regulator, comprising:

[0006] The housing has an internal structure consisting of an intake channel, a first air chamber, a second air chamber, a third air chamber, a volume chamber, and an exhaust channel that are connected in sequence. The intake end of the intake channel is used to connect to the cylinder outlet, and the exhaust end of the exhaust channel is used to connect to the air pump inlet.

[0007] A first flow regulating valve is installed in the first air chamber and is used to regulate the air flow rate entering the first air chamber;

[0008] The second flow regulating valve is installed in the second air chamber and is used to regulate the air flow rate from the second air chamber to the third air chamber;

[0009] A volumetric regulating valve is installed in the third air chamber. It includes a valve body and a valve core assembly. The volume chamber is located inside the valve body. The valve core assembly is movably installed in the volume chamber and is used to adjust the size of the volume chamber. Several vent holes for connecting the volume chamber are opened on the side wall of the volume chamber. The bottom of the volume chamber is connected to the exhaust channel.

[0010] Furthermore, it also includes a transition chamber. The side wall of the transition chamber has an air inlet communicating with the air inlet channel, a first air inlet communicating with the first chamber, a second air inlet communicating with the second chamber, and a third air inlet communicating with the third chamber. An air guide pipe is fixedly installed inside the transition chamber, and the interior of the air guide pipe is divided into a first transition chamber and a second transition chamber that are not interconnected by a partition. The side wall of the first transition chamber has an air inlet for communicating with the air inlet channel and a first air hole for communicating with the first air inlet. The side wall of the second transition chamber has a second air hole communicating with the second air inlet, and its end face has a third air hole communicating with the third air inlet.

[0011] The outer diameter of the air guide tube is smaller than the diameter of the transition air chamber. A first sealing ring, a second sealing ring, a third sealing ring, and a fourth sealing ring are sequentially installed along the length of the outer wall of the air guide tube, respectively sealing against the inner wall of the transition air chamber. The first sealing ring, the second sealing ring, and the outer wall of the air guide tube together form a first annular air cavity connecting the first air passage and the first air hole. The second sealing ring, the third sealing ring, and the outer wall of the air guide tube together form a second annular air cavity connecting the air inlet passage and the air inlet. The third sealing ring, the fourth sealing ring, and the outer wall of the air guide tube together form a third annular air cavity connecting the second air passage and the second air hole.

[0012] Preferably, the air inlet, the first air inlet, and the second air inlet are each provided with a plurality of them.

[0013] Furthermore, in order to better control the gas pressure in the first chamber, the first chamber has several vent holes on the side wall away from the second chamber that are connected to the outside, and a pressure-balancing vent membrane is fixedly installed on the inner wall of the first chamber at several vent holes.

[0014] Furthermore, for ease of adjustment, the first flow regulating valve, the second flow regulating valve, and the valve core assembly each include an adjusting screw, and the end of the adjusting screw is provided with an adjusting knob.

[0015] Preferably, in order to make adjustment easier, the outer peripheral wall of the adjustment knob is provided with anti-slip texture.

[0016] Preferably, in order to prevent the adjusting screw from running after adjustment, a fastening nut is also included, which is threaded to the outside of the adjusting screw and used for secondary tightening.

[0017] Furthermore, in order to better achieve a sealing fit between the bottom of the volumetric regulating valve and the bottom of the third air chamber, a slot is provided at the bottom of the third air chamber, and a sealing ring is snapped onto the outer bottom of the volumetric regulating valve, with the sealing ring sealingly fitting into the slot.

[0018] Preferably, in order to prevent gas from flowing back into the regulator, a one-way valve is fixedly installed in the exhaust channel.

[0019] The present invention has the following beneficial effects:

[0020] 1. By adjusting the first flow regulating valve, the airflow entering the first air chamber reaches a certain level. Then, the second flow regulating valve is adjusted to make the airflow from the second air chamber to the third air chamber reach a specified level. Finally, the volumetric regulating valve is adjusted so that the airflow entering the volumetric chamber is full and the pressure reaches the same level as the outside, which can make the cylinder movement achieve a deceleration effect, achieving two different movement conditions and improving the service life of the cylinder.

[0021] 2. By setting up a transition chamber and installing an air guide pipe inside the transition chamber, airflow can be achieved in both directions, so that the air intake and exhaust are on the same side, which is convenient for use.

[0022] 3. The regulator of the present invention has a high degree of integration, a compact structure, low manufacturing cost, and is convenient and quick to use. It can be used with any cylinder. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the regulator of the present invention.

[0024] Figure 2 This is a gas path diagram of the present invention.

[0025] Key component symbols: 10. Housing; 100. Intake passage; 101. First air chamber; 102. Second air chamber; 103. Third air chamber; 1030. Slot; 104. Volume chamber; 105. Exhaust passage; 106. Vent hole; 1070. Intake channel; 1071. First air passage; 1072. Second air passage; 1073. Third air passage; 108. Vent hole; 1000. Adjusting screw; 1001. Adjusting knob; 1002. Anti-slip texture; 1003. Fastening nut; 11. First flow regulating valve; 12. Second flow regulating valve; 1 3. Volumetric regulating valve; 130. Sealing ring; 131. Valve body; 132. Valve core assembly; 14. Air guide pipe; 140. Air inlet; 141. First air port; 142. Second air port; 143. Third air port; 1400. Baffle plate; 1401. First transition air chamber; 1402. Second transition air chamber; 15. Pressure balancing breathable membrane; 16. One-way valve; 21. First sealing ring; 22. Second sealing ring; 23. Third sealing ring; 24. Fourth sealing ring; 201. First annular air chamber; 202. Second annular air chamber; 203. Third annular air chamber. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 As shown, the present invention discloses a cylinder motion change regulator, including a housing 10, a first flow regulating valve 11, a second flow regulating valve 12, and a volumetric regulating valve 13.

[0028] The housing 10 has an intake passage 100, a first air chamber 101, a second air chamber 102, a third air chamber 103, a volume chamber 104, and an exhaust passage 105 connected in sequence. The intake end of the intake passage 100 is used to connect to the cylinder outlet, and the exhaust end of the exhaust passage 105 is used to connect to the air pump inlet. Preferably, to prevent gas from flowing back into the regulator, a one-way valve 16 is fixedly installed inside the exhaust passage 105.

[0029] The first flow regulating valve 11 is installed in the first air chamber 101 and is used to regulate the flow rate of air entering the first air chamber 101. The second flow regulating valve 12 is installed in the second air chamber 102 and is used to regulate the flow rate of air entering the third air chamber 103 from the second air chamber 102.

[0030] A volumetric regulating valve 13 is installed in the third air chamber 103. It includes a valve body 131 and a valve core assembly 132. A volumetric cavity 104 is located inside the valve body 131. The valve core assembly 132 is movably installed within the volumetric cavity 104 and is used to adjust the size of the volumetric cavity 104. Several vent holes 106 are provided on the side wall of the volumetric cavity 104 to connect to the third air chamber 103. The bottom of the volumetric cavity 104 is connected to an exhaust passage 105. A slot 1030 is provided at the bottom of the third air chamber 103. A sealing ring 130 is snapped onto the outer bottom of the volumetric regulating valve 13, and the sealing ring 130 is sealed in conjunction with the slot 1030.

[0031] Preferably, the regulator of the present invention further includes a transition chamber. The side wall of the transition chamber has an air inlet 1070 communicating with the air inlet channel 100, a first air passage 1071 communicating with the first air chamber 101, a second air passage 1072 communicating with the second air chamber 102, and a third air passage 1073 communicating with the third air chamber 103. An air guide pipe 14 is fixedly installed inside the transition chamber, and the interior of the air guide pipe 14 is divided into a first transition chamber 1401 and a second transition chamber 1402 that are not interconnected by a partition 1400. The side wall of the first transition chamber 1401 has an air inlet 140 communicating with the air inlet 1070 and a first air hole 141 communicating with the first air passage 1071. The side wall of the second transition chamber 1402 has a second air hole 142 communicating with the second air passage 1072, and the end face has a third air hole 143 communicating with the third air passage 1073.

[0032] Both the air guide tube 14 and the transition air chamber are cylindrical structures, and the outer diameter of the air guide tube 14 is smaller than the diameter of the transition air chamber. Along its length, the outer wall of the air guide tube 14 is sequentially fitted with a first sealing ring 21, a second sealing ring 22, a third sealing ring 23, and a fourth sealing ring 24, which respectively seal against the inner wall of the transition air chamber. The first sealing ring 21, the second sealing ring 22, and the outer wall of the air guide tube 14 together form a first annular air cavity 201 for connecting the first air passage 1071 and the first air hole 141. The second sealing ring 22, the third sealing ring 23, and the outer wall of the air guide tube 14 together form a second annular air cavity 202 for connecting the air inlet passage 1070 and the air inlet 140. The third sealing ring 23, the fourth sealing ring 24, and the outer wall of the air guide tube 14 together form a third annular air cavity 203 for connecting the second air passage 1072 and the second air hole 142.

[0033] Preferably, in order to make the gas flow more smoothly, the air inlet 140, the first air inlet 141 and the second air inlet 142 are each provided with a plurality of holes.

[0034] The first air chamber 101 has several vent holes 108 on its side wall away from the second air chamber 102, which communicate with the outside. A pressure-balancing vent membrane 15 is fixedly installed on the inner wall of the first air chamber 101 at the vent holes 108. When the pressure in the first air chamber 101 exceeds a certain value, gas will be discharged through the pressure-balancing vent membrane 15 from the vent holes 108. Correspondingly, vent holes are provided on the shell 10.

[0035] The first flow regulating valve 11, the second flow regulating valve 12, and the valve core assembly 1032 each include an adjusting screw 1000, and an adjusting knob 1001 is provided at the end of the adjusting screw 1000. Preferably, the outer peripheral wall of the adjusting knob 1001 is provided with anti-slip texture 1002. Preferably, it also includes a fastening nut 1003 threaded to the outside of the adjusting screw 1000 for secondary tightening. After the adjusting screw 1000 is adjusted, the fastening nut 1003 is tightened to prevent the adjusting screw 1000 from running.

[0036] The working principle of this invention is as follows: The assembled regulator is connected to the cylinder and the air pump respectively. The intake end of the intake channel 100 is connected to the cylinder outlet, the outlet end of the exhaust channel 105 is connected to the air pump inlet, and the air pump outlet is connected to the cylinder inlet. The air pump is then started. Figure 2 As shown, the gas exiting the cylinder outlet passes sequentially through the intake channel 100, intake passage 1070, second annular air chamber 202, intake port 140, first transition air chamber 1401, first air hole 141, first annular air chamber 201, first air passage 1071, first air chamber 101, first flow regulating valve 11, second flow regulating valve 12, second air passage 1072, third annular air chamber 203, second air hole 142, second transition air chamber 1402, third air hole 143, third air chamber 103, vent 106, volume chamber 104, exhaust channel 105, and one-way valve 16, finally entering the air pump inlet. During adjustment, the first flow regulating valve 11 is first adjusted to achieve initial adjustment, so that the airflow entering the first air chamber 101 reaches a certain level. Then, the second flow regulating valve 12 is adjusted to achieve fine adjustment, so that the airflow from the second air chamber 102 to the third air chamber 103 reaches the specified level. Finally, the volumetric regulating valve 13 is adjusted so that the airflow entering the volume chamber 104 is full and the pressure reaches the same level as the outside, which allows the cylinder movement to achieve a deceleration effect, achieving two different movement conditions and improving the service life of the cylinder.

[0037] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the invention without departing from the spirit and scope of the invention as defined in the appended claims are within the scope of protection of the invention.

Claims

1. A cylinder motion change regulator, characterized in that, include: The housing has an internal structure consisting of an intake channel, a first air chamber, a second air chamber, a third air chamber, a volume chamber, and an exhaust channel that are connected in sequence. The intake end of the intake channel is used to connect to the cylinder outlet, and the exhaust end of the exhaust channel is used to connect to the air pump inlet. A first flow regulating valve is installed in the first air chamber and is used to regulate the air flow rate entering the first air chamber; The second flow regulating valve is installed in the second air chamber and is used to regulate the air flow rate from the second air chamber to the third air chamber; A volumetric regulating valve is installed in the third air chamber. It includes a valve body and a valve core assembly. The volume chamber is located inside the valve body. The valve core assembly is movably installed in the volume chamber and is used to adjust the size of the volume chamber. Several vent holes for connecting the third air chamber are opened on the side wall of the volume chamber. The bottom of the volume chamber is connected to the exhaust channel. The transition chamber has an air inlet connected to the air inlet channel, a first air inlet connected to the first air chamber, a second air inlet connected to the second air chamber, and a third air inlet connected to the third air chamber on its side wall. An air guide pipe is fixedly installed inside the transition chamber. The interior of the air guide pipe is divided into a first transition chamber and a second transition chamber that are not interconnected by a partition. The side wall of the first transition chamber has an air inlet hole for connecting to the air inlet channel and a first air hole for connecting to the first air inlet. The side wall of the second transition chamber has a second air hole for connecting to the second air inlet, and a third air hole for connecting to the third air inlet is opened on its end face.

2. The cylinder motion change regulator as described in claim 1, characterized in that: The outer diameter of the air guide tube is smaller than the diameter of the transition air chamber. A first sealing ring, a second sealing ring, a third sealing ring, and a fourth sealing ring are sequentially installed on the outer wall of the air guide tube along its length direction. The first sealing ring, the second sealing ring, and the outer wall of the air guide tube together form a first annular air cavity for connecting the first air passage and the first air hole. The second sealing ring, the third sealing ring, and the outer wall of the air guide tube together form a second annular air cavity for connecting the air inlet passage and the air inlet. The third sealing ring, the fourth sealing ring, and the outer wall of the air guide tube together form a third annular air cavity for connecting the second air passage and the second air hole.

3. The cylinder motion change regulator as described in claim 2, characterized in that: The air inlet, the first air inlet, and the second air inlet are each provided with a number of them.

4. The cylinder motion change regulator as described in claim 1, characterized in that: The first air chamber has several vent holes on its side wall away from the second air chamber, which are connected to the outside. A pressure-balanced vent membrane is fixedly installed on the inner wall of the first air chamber at several vent holes.

5. A cylinder motion change regulator as described in claim 1, characterized in that: The first flow regulating valve, the second flow regulating valve, and the valve core assembly each include an adjusting screw, and the end of the adjusting screw is provided with an adjusting knob.

6. A cylinder motion change regulator as described in claim 5, characterized in that: The outer peripheral wall of the adjustment knob is provided with anti-slip texture.

7. A cylinder motion change regulator as described in claim 5, characterized in that: It also includes a fastening nut that is threaded onto the outside of the adjusting screw and used for secondary tightening.

8. A cylinder motion change regulator as described in claim 1, characterized in that: A slot is provided at the bottom of the third air chamber, and a sealing ring is snapped into the bottom of the outer side of the volumetric regulating valve, with the sealing ring sealingly engaging with the slot.

9. A cylinder motion change regulator as described in claim 1, characterized in that: A one-way valve is fixedly installed inside the exhaust channel.

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