Gravity type gas reversing device
By setting the main airway, separate airway and bronchial in the valve body, and using gravity ball sealing, a gravity gas reversing device is designed, which solves the problem of the inability to use electromagnetic reversing valves in the closed environment in the prior art, and realizes the effect of gas reversing without additional power. It is suitable for wire drawing machines and other applications.
Patent Information
- Application Number
- CN202510055665.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-05-09
AI Technical Summary
In the prior art, the electromagnetic reversing valve requires electricity and cannot be used in a sealed special environment, and other reversing devices also need to provide power separately, making it difficult to meet the actual use requirements.
A gravity gas commutation device is designed. By setting the main airway, a separate airway, a first airway and a second airway in the valve body, and a gravity ball is set in the separate airway, the gravity ball is used to seal the lower branching channel to achieve gas commutation. The device does not require additional electricity or power, and the switching of the air path can be achieved through the rotation of the valve body.
It realizes gas reversing without additional power in a closed environment, simplifies operation, and is suitable for driving cylinders in the spindle of the wire drawing machine. It uses the spindle's own rotation to realize the reciprocating movement of the cylinders, avoiding the problems of solenoid valves that are prone to failures and complicated maintenance.
Smart Images
Figure CN119957576A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of reversing devices, and in particular to a gravity-type gas reversing device. Background Art
[0002] The cylinder is a power component that converts heat energy into mechanical energy through the expansion of gas in the cylinder body, thereby pushing the piston rod to perform linear reciprocating motion in the cylinder. When the piston rod performs reciprocating motion, gas needs to be intermittently introduced on both sides of the piston. In the prior art, the reversal of gas is mostly achieved through electromagnetic reversing valves, which are also easy to control automatically.
[0003] However, the electromagnetic reversing valve requires electricity, and in some closed special environments, it is impossible to provide electricity, so the electromagnetic reversing valve cannot be used. Other existing reversing devices also need to be powered separately, which is difficult to meet actual use requirements. Summary of the invention
[0004] In order to solve the above problems, the present invention provides a gravity-type gas reversing device which does not require the use of additional power.
[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a gravity-type gas reversing device, including a valve body, wherein a main air channel is axially opened in the valve body, one end of the main air channel is connected to an external air source, and the other end is provided with a branch air channel radially arranged along the valve body, the middle position of the branch air channel is connected to the end of the main air channel, and a first branch air channel and a second branch air channel are respectively provided at both ends of the branch air channel, and the ends of the first branch air channel and the second branch air channel away from the branch air channel are respectively connected to the cavities on both sides of the actuator, and a gravity ball is provided in the branch air channel, and when the plane where the first branch air channel and the second branch air channel are located is in the vertical plane, the gravity ball seals the lower end of the branch air channel.
[0006] By adopting the above technical solution, a main airway, a branch airway, a first branch airway and a second branch airway are arranged in the valve body, so as to divide one gas path into two paths, and then a gravity ball is arranged in the branch airway, and the gravity ball is used to seal the branch airway located below to achieve ventilation of one path. When it is necessary to switch the ventilation of the other branch airway, it is only necessary to rotate the valve body 180 degrees. No additional electricity or power is required. The switching of the air path can be achieved under the rotation of the equipment itself. It can be used in the main shaft of the wire drawing machine to control the driving cylinder of the cutting machine head wire. The reciprocating motion of the driving cylinder is achieved by the rotation of the main shaft itself, and the operation is simple and convenient.
[0007] Furthermore, countersunk holes are provided on the valve body at both ends of the air channel, and a locking nut is threadedly connected to the countersunk hole. An L-shaped air channel is provided in the locking nut, one end of the L-shaped air channel is connected to the air channel, and the other end is connected to the first branch air channel or the second branch air channel. An annular rubber ring is provided at the end of the locking nut located in the air channel.
[0008] By adopting the above technical solution, locking nuts are set at both ends of the air channel, and the air channel and the first and second air channels are connected by the L-shaped air channel in the locking nut, which is convenient for disassembly and maintenance. An annular rubber ring is set at the end of the locking nut located in the air channel to cooperate with the gravity ball to ensure air tightness.
[0009] Furthermore, an annular groove is provided on the outer wall of the end of the locking nut facing away from the air distribution channel, and an annular sealing ring is sleeved in the annular groove.
[0010] By adopting the above technical solution, an annular groove and an annular sealing ring are provided on the outer wall of the end of the locking nut away from the air distribution channel, so as to ensure the air tightness of the connection between the locking nut and the valve body and avoid air leakage affecting the control effect.
[0011] Furthermore, the inner diameter of the branch airway is larger than the inner diameter of the main airway, the diameter of the gravity ball is larger than the inner diameter of the main airway and smaller than the inner diameter of the branch airway, and the inner diameter of the L-shaped airway is smaller than the diameter of the gravity ball.
[0012] By adopting the above technical solution, the inner diameter of the sub-airway is larger than the inner diameter of the main airway, the diameter of the gravity ball is larger than the inner diameter of the main airway, smaller than the inner diameter of the sub-airway, and larger than the inner diameter of the L-shaped airway, which can effectively prevent the gravity ball from entering the main airway or the L-shaped airway.
[0013] Furthermore, a hexagonal hole is provided at one end of the locking nut away from the air distribution channel.
[0014] By adopting the above technical solution, a hexagonal hole is provided at the end of the locking nut away from the air distribution channel, so that the locking nut can be screwed into or out of the countersunk hole easily.
[0015] Furthermore, the gravity ball is a steel ball.
[0016] By adopting the above technical solution, the gravity ball is made of steel ball, which has a large density and is heavier than spheres made of other materials under the same volume conditions. In this way, when the valve body rotates, the gravity ball relies on its own gravity to block the bronchus below.
[0017] To sum up, the present invention has the following beneficial effects: in the present application, a main airway, a branch airway, a first branch airway and a second branch airway are arranged in the valve body, so that one path of gas is divided into two paths, and then a gravity ball is arranged in the branch airway, and the gravity ball is used to seal the branch airway located below to achieve ventilation of one path. When it is necessary to switch the ventilation of the other branch airway, it is only necessary to rotate the valve body 180 degrees. No additional electricity or power is required. The switching of the air path can be achieved by the rotation of the equipment itself. It can be used in the main shaft of the wire drawing machine to control the driving cylinder of the cutting machine head wire. The reciprocating motion of the driving cylinder is achieved by the rotation of the main shaft itself, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a cross-sectional schematic diagram of an embodiment of the present invention in an initial state;
[0019] Figure 2 is a cross-sectional schematic diagram of an embodiment of the present invention after being rotated 180 degrees;
[0020] Figure 3 yes Figure 1 A partial enlarged schematic diagram of .
[0021] In the figure: 10, valve body; 11, main air channel; 12, branch air channel; 13, first branch air channel; 14, second branch air channel; 15, countersunk hole; 20, gravity ball; 30, locking nut; 31, L-shaped air channel; 32, annular rubber ring; 33, annular groove; 34, annular sealing ring; 35, hexagonal hole. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0023] like Figure 1-3 As shown, an embodiment of the present application discloses a gravity-type gas reversing device, including a valve body 10, in which a main air channel 11 is axially opened in the valve body 10, one end of the main air channel 11 is connected to an external air source, and the other end is provided with a branch air channel 12 radially arranged along the valve body 10, the inner diameter of the branch air channel 12 is larger than the inner diameter of the main air channel 11, the middle position of the branch air channel 12 is connected to the end of the main air channel 11, and a first branch air channel 13 and a second branch air channel 14 are respectively provided at both ends of the branch air channel 12, and the ends of the first branch air channel 13 and the second branch air channel 14 away from the branch air channel 12 are respectively connected to the cavities on both sides of the actuator, and gas is supplied to the first branch air channel 13 and the second branch air channel 14 respectively through the main air channel 11.
[0024] In the specific setting, countersunk holes 15 are provided on the valve body 10 at both ends of the air channel 12, and the locking nuts 30 are connected by threads in the countersunk holes 15. The end of the locking nut 30 away from the air channel 12 is provided with an inner hexagon hole 35, and the locking nut 30 can be screwed into the countersunk hole 15 or screwed out from the countersunk hole 15 through the inner hexagon hole 35, which is convenient for installation and maintenance. An L-shaped air channel 31 is provided in the locking nut 30, one end of the L-shaped air channel 31 is connected to the air channel 12, and the other end is connected to the first branch air channel 13 or the second branch air channel 14, so that the air channel 12 is connected to the first branch air channel 13 or the second branch air channel 14 through the L-shaped air channel 31 in the locking nut 30, forming a complete gas passage. An annular groove 33 is provided on the outer wall of the end of the locking nut 30 away from the air channel 12, and an annular sealing ring 34 is sleeved in the annular groove 33. In this way, when the locking nut 30 is screwed into the countersunk hole 15, the annular sealing ring 34 is squeezed between the locking nut 30 and the valve body 10, thereby achieving a sealing effect and preventing air leakage at the connection.
[0025] A gravity ball 20 is arranged in the air channel 12. The gravity ball 20 is a steel ball with a certain weight. The diameter of the gravity ball 20 is larger than the inner diameter of the main air channel 11, smaller than the inner diameter of the air channel 12, and larger than the inner diameter of the L-shaped air channel 31. In this way, the gravity ball 20 can roll in the air channel 12, but will not enter the main air channel 11 or the L-shaped air channel 31. An annular rubber ring 32 is arranged at the end of the locking nut 30 located in the air channel 12. When the plane where the first branch air channel 13 and the second branch air channel 14 are located is located in the plumb plane, the gravity ball 20 falls to the end of the locking nut 30 at the lower end of the air channel 12 under the action of gravity, and cooperates with the annular rubber ring 32 on the locking nut 30 to seal the L-shaped air channel 31. In this way, only the branch airway corresponding to the upper end of the branch airway 12 is left for ventilation, and the gravity ball 20 will be pressed against the annular rubber ring 32 of the locking nut 30 under the action of the pressure in the airway; and when it is necessary to switch the air intake channel, it is only necessary to rotate the valve body 10 180 degrees, so that the upper and lower positions of the two branches are swapped, and the gravity ball 20 still seals the branch airway located below under the action of gravity.
[0026] In this embodiment, a gravity-type gas reversing device is mainly used in the main shaft of the wire drawing machine to provide an air circuit for the driving cylinder of the machine head wire cutting device located at the end of the main shaft, and the entire valve body 10 is arranged in the main shaft. In this way, the rotation of the main shaft drives the valve body 10 to rotate, thereby realizing the switching of the air circuits of the first branch airway 13 and the second branch airway 14, and driving the driving cylinder to reciprocate. In this way, there is no need to set up an electromagnetic valve or a starting control element for the air circuit of the driving cylinder, no additional electricity or other power is required, the structure is simple, and it is not easy to fail during operation, which reduces the problem of easy failure and cumbersome maintenance of electromagnetic valves in the prior art.
[0027] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A gravity-type gas reversing device, characterized in that: The valve body (10) comprises a main air channel (11) axially opened in the valve body (10), one end of the main air channel (11) is connected to an external air source, and the other end is provided with a branch air channel (12) radially arranged along the valve body (10), the middle position of the branch air channel (12) is connected to the end of the main air channel (11), and the two ends of the branch air channel (12) are respectively provided with a first branch air channel (13) and a second branch air channel (14), and the ends of the first branch air channel (13) and the second branch air channel (14) away from the branch air channel (12) are respectively connected to the two side cavities of the actuator, and a gravity ball (20) is provided in the branch air channel (12), and when the plane where the first branch air channel (13) and the second branch air channel (14) are located is located in the vertical plane, the gravity ball (20) seals the lower end of the branch air channel (12).
2. A gravity-type gas reversing device according to claim 1, characterized in that: Countersunk holes (15) are provided on the valve body (10) at both ends of the air channel (12), and a locking nut (30) is threadedly connected to the internal thread of the countersunk hole (15). An L-shaped air channel (31) is provided inside the locking nut (30), and one end of the L-shaped air channel (31) is connected to the air channel (12), and the other end is connected to the first branch air channel (13) or the second branch air channel (14). An annular rubber ring (32) is provided at the end of the locking nut (30) located in the air channel (12).
3. A gravity-type gas reversing device according to claim 2, characterized in that: An annular groove (33) is formed on the outer wall of the end of the locking nut (30) away from the air distribution channel (12), and an annular sealing ring (34) is sleeved in the annular groove (33).
4. A gravity-type gas reversing device according to claim 2, characterized in that: The inner diameter of the branch airway (12) is larger than the inner diameter of the main airway (11), the diameter of the gravity ball (20) is larger than the inner diameter of the main airway (11) and smaller than the inner diameter of the branch airway (12), and the inner diameter of the L-shaped airway (31) is smaller than the diameter of the gravity ball (20).
5. A gravity-type gas reversing device according to claim 3, characterized in that: The locking nut (30) is provided with a hexagonal hole (35) at one end facing away from the air distribution channel (12).
6. A gravity-type gas reversing device according to claim 1, characterized in that: The gravity ball (20) is a steel ball.