CN213017040U - Automatic reciprocating cylinder - Google Patents
Automatic reciprocating cylinder Download PDFInfo
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- CN213017040U CN213017040U CN202021074474.8U CN202021074474U CN213017040U CN 213017040 U CN213017040 U CN 213017040U CN 202021074474 U CN202021074474 U CN 202021074474U CN 213017040 U CN213017040 U CN 213017040U
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Abstract
The utility model discloses an automatic reciprocating cylinder. The automatic reciprocating cylinder aims to solve the problems that an automatic reciprocating cylinder in the prior art uses an elastic element for resetting, and is complex in structure and inconvenient to maintain; the utility model comprises a working cylinder, a cylinder control valve, a piston and a piston rod, wherein the cylinder control valve comprises a valve body, a valve body cover and a valve core, one end of the valve body is connected with the working cylinder, the other end of the valve body is connected with the valve body cover, the valve core is arranged in the valve body, and the piston rod passes through the valve core and the valve body cover; the valve body is provided with an air source air inlet hole, a main exhaust hole, a plurality of vent grooves and exhaust grooves, and a first vent pipe and a second vent pipe are respectively arranged between the vent grooves and two sides of a piston in the working cylinder; and the piston rod and the valve core are provided with a plurality of sealing ring groups matched with the positions of the vent grooves, the exhaust grooves and the air inlet holes of the air source. The utility model takes the compressed air as the power source to complete the reciprocating motion of the cylinder, and has simple structure; the required device is simple and convenient for future maintenance.
Description
Technical Field
The utility model relates to a cylinder field especially relates to an automatic reciprocating cylinder.
Background
The automatic air cylinder is widely applied to be used as a power source of a liquid body or a vibrator. The cylinder requires a simple structure and a small volume for easy installation and maintenance.
Some automatic reciprocating cylinders are reset, but reset because of devices, for example, a single-acting automatic reciprocating cylinder and an automatic reciprocating cylinder system disclosed in the chinese patent document, the publication No. CN209398656U includes a cylinder body, a piston head and a piston rod, the piston head is disposed in the cylinder body, the piston rod extends into the cylinder body and is fixedly connected with the piston head, the piston head reciprocates in the cylinder body and divides the cylinder body into an elastic cavity and an inflation cavity which are isolated from each other, an elastic member which is respectively abutted against the inner wall of the cylinder body and the piston head is disposed in the elastic cavity, one end of the cylinder body is provided with an inflation inlet, the inflation inlet is communicated with the inflation cavity, one end of the cylinder body is provided with an inflation inlet, and the inflation inlet is communicated. The elastic device is used for resetting, the complexity of the structure is increased, and the maintenance in the future is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the problems of the prior art that the automatic reciprocating cylinder uses an elastic element to reset, the structure is complex and the maintenance is inconvenient; the automatic reciprocating cylinder is provided, the reciprocating motion of the cylinder takes compressed air as a power source, the required structure is simple, the required elements are single, and the later maintenance is convenient.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model comprises a working cylinder, a cylinder control valve, a piston and a piston rod, wherein one end of the piston rod is connected with the piston, the piston is arranged in the working cylinder, and the other end of the piston rod passes through the cylinder control valve and is exposed outside; the two reciprocating positions of the piston in the working cylinder are a first state and a second state; the cylinder control valve comprises a valve body, a valve body cover and a valve core, wherein one end of the valve body is connected with the working cylinder, the other end of the valve body is connected with the valve body cover, the valve core is arranged in the valve body, and a piston rod penetrates through the valve core and the valve body cover; the valve body is provided with an air source air inlet hole, a main exhaust hole, a plurality of vent grooves and exhaust grooves, and a first vent pipe and a second vent pipe are respectively arranged between the vent grooves and two sides of a piston in the working cylinder; and the piston rod and the valve core are provided with a plurality of sealing ring groups matched with the positions of the vent grooves, the exhaust grooves and the air inlet holes of the air source.
In the scheme, when compressed air enters the valve body through the air source air inlet, the valve core is pushed to one side by the compressed air due to the design of the sealing ring group on the piston rod, the air cylinder is in a first state due to the matching of the sealing ring group on the valve core and the vent groove and the exhaust groove on the valve body, the compressed air enters the working air cylinder through the second vent pipe to push the piston to move, and the air is exhausted through the second vent pipe, the exhaust groove and the main exhaust hole; when the piston moves to the second state, compressed air enters the working cylinder through the first vent pipe to push the piston to move, and air is exhausted through the first vent pipe, the exhaust groove and the main exhaust hole. Thus, the automatic reciprocating motion of the cylinder is completed, and when the working resistance is greater than or equal to the thrust of the working cylinder, the cylinder stops working and maintains pressure. The compressed air is used as a power source to complete the automatic reciprocating of the air cylinder, the structure is simple, and the reliability is high; the required structure is single, and the maintenance in the future is convenient.
Preferably, the inner wall of the valve body is provided with a first vent groove and a second vent groove, the first vent groove and the second vent groove are respectively arranged at two sides of the air source air inlet hole, the first vent groove is communicated to one side of the piston in the working cylinder through a first vent pipe, and the second vent groove is communicated to the other side of the piston in the working cylinder through a second vent pipe; one side of the first vent groove, which is far away from the air source air inlet hole, is provided with a first exhaust groove, one side of the second vent groove, which is far away from the air source air inlet hole, is provided with a second exhaust groove, and the first exhaust groove and the second exhaust groove are communicated with a total exhaust hole through exhaust pipes. The air vent groove and the air exhaust groove are arranged and are respectively used for ventilation and air exhaust when the piston moves, the automatic reciprocating motion of the cylinder is completed, and the structure is simple.
Preferably, the first vent groove, the second vent groove, the first exhaust groove and the second exhaust groove are all annular grooves arranged along the inner wall of the valve body. The annular groove is formed, so that the ventilation pipeline and the exhaust pipeline can be designed more conveniently, more positions can be selected, the staggering among the air circuits is avoided, the air circuits are arranged conveniently, and the structure is simple.
Preferably, the valve core is provided with a first sealing ring group and a second sealing ring group; the first sealing ring group is positioned between the first exhaust groove and the first vent groove in the first state, and is positioned between the air source air inlet and the first vent groove in the second state; the second sealing ring group is positioned between the air source air inlet and the second vent groove in the first state; and the second air discharge groove and the second air vent groove are positioned between the second air discharge groove and the second air vent groove in the second state. The sealing ring group arranged on the valve core is matched with the vent groove and the exhaust groove on the valve body to complete the conversion of the cylinder between the first state and the second state, and the cylinder is ensured not to enter into another vent pipe in the conversion process, so that the structure is simple, and the reliability is high.
Preferably, the piston rod is provided with a third sealing ring group and a fourth sealing ring group; the third sealing ring group is positioned between the piston rod and the inner wall of the working cylinder in the first state, and is positioned between the piston rod and the valve core in the second state, and the third sealing ring group is positioned on one side of the air source air inlet hole, which is provided with the first vent groove; the fourth sealing ring group is positioned between the piston rod and the valve core in the first state, positioned on one side of the air source air inlet hole provided with the second vent groove, and positioned between the piston rod and the valve body cover in the second state. The design of the sealing ring group on the piston rod enables a certain section in the valve body to generate air pressure to push the valve core to move, and different ventilation loops are selected to complete the automatic reciprocating motion of the cylinder.
Preferably, the total exhaust hole is provided with an exhaust silencing sheet. The arrangement of the exhaust silencing sheet can reduce noise.
Preferably, the first vent pipe is arranged inside the valve body and the working cylinder, one end of the first vent pipe is communicated with the first vent groove, and the other end of the first vent pipe is communicated with one side, close to the cylinder control valve, of the working cylinder; the second vent pipe is arranged outside the valve body and the working cylinder, one end of the second vent pipe is communicated with the second vent groove, and the other end of the second vent pipe is communicated with one side, far away from the cylinder control valve, of the working cylinder. The breather pipe sets up inside the cylinder, reduces the cylinder volume, easy to assemble.
Preferably, the two ends of the exhaust pipe extend to form a first exhaust hole and a second exhaust hole, the first exhaust hole is arranged in the working cylinder, and the second exhaust hole is arranged in the valve body cover. Air between the piston rod and the valve core is discharged in the moving process of the piston, so that resistance is reduced, and smooth operation is guaranteed.
The utility model has the advantages that:
1. the reciprocating motion of the cylinder is completed by adopting the matching of the sealing ring and the vent pipeline and taking compressed air as a power source, and the structure is simple.
2. The device required by the cylinder is simple, and the maintenance in the future is convenient.
Drawings
Fig. 1 is a schematic structural view of the automatic reciprocating cylinder of the present invention.
Fig. 2 is a transverse cross-sectional view of the first state of the cylinder of the present invention.
Fig. 3 is a longitudinal sectional view of the first state of the cylinder according to the present invention.
Fig. 4 is a transverse cross-sectional view of a second state of the cylinder of the present invention.
Fig. 5 is a longitudinal sectional view of the second state of the cylinder according to the present invention.
In the figure, 1, a piston, 2, a piston rod, 3, a valve body, 4, a valve body cover, 5, a valve core, 6, an air source air inlet hole, 7, a total exhaust hole, 8, an air inlet channel, 9, a first vent groove, 10, a second vent groove, 11, a first exhaust groove, 12, a second exhaust groove, 13, a first vent pipe, 14, a second vent pipe, 15, an exhaust pipe, 16, a first sealing ring group, 17, a second sealing ring group, 18, a third sealing ring group, 19, a fourth sealing ring group, 20, an exhaust silencing sheet, 21, a first exhaust hole, 22, a second exhaust hole, 23, a working cylinder, 24, a cylinder control valve, 25, a cylinder front cover, 26, a cylinder sleeve, 27, a cylinder rear cover and 28 are installation seats of the vent pipe.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
an automatic reciprocating cylinder of the present embodiment, as shown in fig. 1, includes a working cylinder 23, a cylinder control valve 24, a piston 1, and a piston rod 2.
As shown in fig. 2 to 5, the working cylinder 23 includes a cylinder front cover 25, a cylinder liner 26, and a cylinder rear cover 27. Two ends of the cylinder sleeve 26 are respectively connected with a cylinder front cover 26 and a cylinder rear cover 27 to form a working space of the cylinder, the piston 1 is arranged in the working cylinder 23, and a sealing ring is arranged between the piston 1 and the cylinder sleeve 26.
The cylinder control valve 24 includes a valve body 3, a valve body cover 4, and a valve core 5. One end of the valve body 3 is fixedly connected with a cylinder front cover 25 of the working cylinder 23, the other end of the valve body 3 is connected with the valve body cover 4, and the valve core 5 is arranged in the valve body 3.
One end of the piston rod 2 is fixedly connected with the piston 1, the other end of the piston rod 2 penetrates through the valve core 5 and the valve body cover 4 to be exposed outside, a sealing ring is arranged between the piston rod 2 and the cylinder front cover 25, and a sealing ring is arranged between the piston rod 2 and the valve body cover 4.
The valve body 3 is provided with an air source air inlet hole 6, a main exhaust hole 7, a plurality of vent grooves and exhaust grooves, the lower end of the air source air inlet hole 6 is provided with an air inlet groove on the inner wall of the valve body 3, the valve core 5 forms an air storage groove around the piston rod 2, an air inlet channel 8 is arranged between the air storage groove and the air inlet groove on the valve core 5, and a first vent pipe 13 and a second vent pipe 14 are respectively arranged between the vent groove and two sides of the piston 1 in the working cylinder.
Two positions at which the piston 1 reciprocates in the working cylinder 23 are a first state and a second state. A first state of the working cylinder 23 with the piston 1 on the leftmost side of the cylinder is shown in fig. 2 and 3, and a second state of the working cylinder 23 with the piston 1 on the rightmost side of the cylinder is shown in fig. 4 and 5.
The inner wall of the valve body 3 is provided with a first vent groove 9 and a second vent groove 10, and the first vent groove 9 and the second vent groove 10 are respectively arranged at two sides of the air source air inlet 6.
The first vent groove 9 is communicated to one side of the piston 1 in the working cylinder 23, namely the right side of the piston 1 in the figure, through a first vent pipe 13; the second vent groove 10 communicates to the other side of the cylinder piston 1, i.e., the left side of the piston 1 in the drawing, through a second vent pipe 14.
A first exhaust groove 9 is arranged on one side of the first vent groove 9 far away from the air source air inlet 6, namely the left side of the first vent groove 9 in the figure; a second exhaust groove 12 is arranged on one side of the second exhaust groove 10 far away from the air source air inlet 6, namely the right side of the second exhaust groove 10 in the figure, and the first exhaust groove 11 and the second exhaust groove 12 are communicated with the main exhaust hole 7 through an exhaust pipe 15.
The first vent groove 9, the second vent groove 10, the first exhaust groove 11 and the second exhaust groove 12 are all annular grooves arranged along the inner wall of the valve body 3.
An exhaust silencing sheet 20 is arranged in the main exhaust hole 7.
The exhaust pipe 15 has a first exhaust hole 21 and a second exhaust hole 22 extending from both ends thereof, the first exhaust hole 21 being provided in the working cylinder, the second exhaust hole 22 being provided in the valve body cover 4.
The valve core 5 is provided with a first sealing ring group 16 and a second sealing ring group 17.
The first sealing ring group 16 is positioned between the first exhaust groove 11 and the first vent groove 9 in the first state, and positioned between the air source air inlet 6 and the first vent groove 9 in the second state; the second sealing ring group 17 is positioned between the air source air inlet 6 and the second vent groove 10 in the first state; and in the second state, between the second exhaust groove 11 and the second vent groove 10.
The piston rod 2 is provided with a third sealing ring group 18 and a fourth sealing ring group 19; the third sealing ring group 18 is positioned between the piston rod 2 and the inner wall of the working cylinder in the first state, the third sealing ring group 18 is positioned between the piston rod 2 and the valve core 5 in the second state, and the third sealing ring group 18 is positioned at one side of the air source air inlet 6, which is provided with the first vent groove 9; the fourth sealing ring group 18 is located between the piston rod 2 and the valve core 5 in the first state, the fourth sealing ring group 19 is located on one side of the air source air inlet hole 6 where the second vent groove 10 is arranged, and the fourth sealing ring group 19 is located between the piston rod 2 and the valve body cover 4 in the second state.
The first vent pipe 13 is arranged inside the valve body 3 and the working cylinder 23, one end of the first vent pipe 13 is communicated with the first vent groove 9, and the other end of the first vent pipe 13 is communicated with one side of the working cylinder 23 close to the cylinder control valve 24, namely the side of a cylinder front cover 25 in the figure.
The second vent pipe 14 is arranged outside the valve body 3 and the working cylinder 23, one end of the second vent pipe 14 is communicated with the second vent groove 10, and the other end of the second vent pipe 14 is communicated with one side of the working cylinder 23 far away from the cylinder control valve 24, namely the right side in the figure. The cylinder front cover 25 is provided with a vent pipe mounting seat 28, the right side of the second vent pipe 14 is communicated with the second vent groove 10 and arranged inside the valve body 3, then the right end of the second vent pipe 14 is communicated with the inside of the cylinder through the cylinder rear cover 27 after passing through the inside of the cylinder front cover 25 and the vent pipe mounting seat 28, and a pipeline of the second vent pipe 14 is erected between the cylinder front cover 25 and the cylinder rear cover 27.
In the scheme, when the working cylinder is in the first state and compressed air enters the cylinder control valve 24 through the air source air inlet hole 6, compressed air enters the periphery of the piston rod 2 through the air inlet channel 8, and because of the arrangement of the fourth sealing ring set 19 on the piston rod 2, the compressed air enters the piston rod at the other end, that is, the left end of the valve core 5 generates pressure in the figure, the valve core 5 is pushed to the right, at this time, the first sealing ring group 18 is positioned between the air source air inlet hole 6 and the first vent groove 9, the second sealing ring group 19 is positioned between the second vent groove 10 and the second vent groove 12, the compressed air enters the left side of the piston 1 in the working cylinder 23 through the second vent pipe 14 on the second vent groove 10, the piston 2 is pushed to the right, in this process, air on the right side of the piston 1 is exhausted through the first air vent pipe 13, the first air vent groove 9, the first air exhaust groove 11, the air exhaust pipe 15, and the total air exhaust hole 7 in this order.
When the piston 1 is pushed to the second state, the third sealing ring group 18 on the piston rod 2 is positioned between the piston rod 2 and the valve core 5, the fourth sealing ring group 19 is positioned between the piston rod 2 and the valve body cover 4, when compressed air enters the cylinder control valve 24 through the air source air inlet hole 6, the compressed air enters the periphery of the piston rod 2 through the air inlet channel 8, the compressed air generates pressure on the right side of the valve core 5 to push the valve core 5 to the left side, at the moment, the first sealing ring group 18 is positioned between the first vent groove 9 and the first exhaust groove 11, the second sealing ring group 19 is positioned between the air source air inlet hole 6 and the second vent groove 10, the compressed air enters the right side of the piston 1 in the working cylinder 23 through the first vent pipe 13 on the first vent groove 9 to push the piston 2 to the left, and in the process, the air on the left side of the piston 1 sequentially passes through the second vent pipe 14 and the, The second exhaust groove 12, the exhaust pipe 15 and the total exhaust hole 7.
And so on, thereby completing the automatic reciprocating motion of the cylinder. When the resistance of the work is larger than or equal to the thrust of the working cylinder, the cylinder stops working and maintains the pressure.
The utility model takes the compressed air as the power source to complete the reciprocating motion of the cylinder, and has simple structure; the required device is simple and convenient for future maintenance.
Claims (8)
1. An automatic reciprocating cylinder comprises a working cylinder (23), a cylinder control valve (24), a piston (1) and a piston rod (2), wherein one end of the piston rod (2) is connected with the piston (1), the piston (1) is arranged in the working cylinder (23), and the other end of the piston rod (2) penetrates through the cylinder control valve (24) and is exposed outside; the device is characterized in that two reciprocating positions of the piston (1) in the working cylinder (23) are a first state and a second state; the cylinder control valve (24) comprises a valve body (3), a valve body cover (4) and a valve core (5), one end of the valve body (3) is connected with the working cylinder (23), the other end of the valve body (3) is connected with the valve body cover (4), the valve core (5) is arranged in the valve body (3), and the piston rod (2) penetrates through the valve core (5) and the valve body cover (4); the valve body (3) is provided with an air source air inlet hole (6), a main exhaust hole (7) and a plurality of vent grooves and exhaust grooves, and a first vent pipe (13) and a second vent pipe (14) are respectively arranged between the vent grooves and two sides of the piston (1) in the working cylinder; and a plurality of sealing ring sets matched with the positions of the vent grooves, the exhaust grooves and the air source air inlet holes (6) are arranged on the piston rod (2) and the valve core (5).
2. The automatic reciprocating cylinder according to claim 1, characterized in that the inner wall of the valve body (3) is provided with a first vent groove (9) and a second vent groove (10), the first vent groove (9) and the second vent groove (10) are respectively arranged at two sides of the air supply inlet hole (6), the first vent groove (9) is communicated to one side of the piston (1) in the working cylinder (23) through a first vent pipe (13), and the second vent groove (10) is communicated to the other side of the piston (1) in the working cylinder (23) through a second vent pipe (14); a first exhaust groove (11) is formed in one side, far away from the air source air inlet hole (6), of the first vent groove (9), a second exhaust groove (12) is formed in one side, far away from the air source air inlet hole (6), of the second vent groove (10), and the first exhaust groove (11) and the second exhaust groove (12) are communicated with the main exhaust hole (7) through exhaust pipes (15).
3. An automatic reciprocating cylinder according to claim 2, characterized in that the first venting groove (9), the second venting groove (10), the first venting groove (11) and the second venting groove (12) are all annular grooves arranged along the inner wall of the valve body (3).
4. An automatic reciprocating cylinder according to claim 2, characterized in that the valve core (5) is provided with a first sealing ring set (16) and a second sealing ring set (17); the first sealing ring group (16) is positioned between the first exhaust groove (11) and the first vent groove (9) in the first state, and is positioned between the air source air inlet hole (6) and the first vent groove (9) in the second state; the second sealing ring group (17) is positioned between the air source air inlet hole (6) and the second vent groove (10) in the first state; and is located between the second exhaust groove (12) and the second vent groove (10) in the second state.
5. An automatic reciprocating cylinder according to claim 2 or 4, characterized in that the piston rod (2) is provided with a third set of sealing rings (18) and a fourth set of sealing rings (19); the third sealing ring group (18) is positioned between the piston rod (2) and the inner wall of the working cylinder in the first state, the third sealing ring group (18) is positioned between the piston rod (2) and the valve core (5) in the second state, and the third sealing ring group (18) is positioned on one side of the air source air inlet hole (6) provided with the first vent groove (9); the fourth sealing ring group (19) is positioned between the piston rod (2) and the valve core (5) in the first state, the fourth sealing ring group (19) is positioned on one side of the air source air inlet hole (6) where the second vent groove (10) is arranged, and the fourth sealing ring group (19) is positioned between the piston rod (2) and the valve body cover (4) in the second state.
6. An automatic reciprocating cylinder according to claim 1, characterized in that said total exhaust hole (7) is provided with an exhaust silencing plate (20).
7. An automatic reciprocating cylinder according to claim 1 or 2, characterized in that the first vent pipe (13) is arranged inside the valve body (3) and the working cylinder, one end of the first vent pipe (13) is communicated with the first vent groove (9), and the other end of the first vent pipe (13) is communicated with one side of the working cylinder close to the cylinder control valve; and the second vent pipe (14) is arranged outside the valve body (3) and the working cylinder, one end of the second vent pipe (14) is communicated with the second vent groove (10), and the other end of the second vent pipe (14) is communicated with one side, far away from the cylinder control valve, of the working cylinder.
8. An automatic reciprocating cylinder according to claim 2, characterized in that the exhaust pipe (15) has a first exhaust hole (21) and a second exhaust hole (22) extending from both ends thereof, the first exhaust hole (21) being provided in the working cylinder, the second exhaust hole (22) being provided in the valve body cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021074474.8U CN213017040U (en) | 2020-06-11 | 2020-06-11 | Automatic reciprocating cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021074474.8U CN213017040U (en) | 2020-06-11 | 2020-06-11 | Automatic reciprocating cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN213017040U true CN213017040U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021074474.8U Active CN213017040U (en) | 2020-06-11 | 2020-06-11 | Automatic reciprocating cylinder |
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| CN (1) | CN213017040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765140A (en) * | 2020-06-12 | 2020-10-13 | 宁波市奉化溪口隆跃机械厂 | Automatic reciprocating cylinder and control method thereof |
-
2020
- 2020-06-11 CN CN202021074474.8U patent/CN213017040U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765140A (en) * | 2020-06-12 | 2020-10-13 | 宁波市奉化溪口隆跃机械厂 | Automatic reciprocating cylinder and control method thereof |
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