CN216077789U - Cylinder set with cylinder body moving relatively - Google Patents
Cylinder set with cylinder body moving relatively Download PDFInfo
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- CN216077789U CN216077789U CN202122410018.7U CN202122410018U CN216077789U CN 216077789 U CN216077789 U CN 216077789U CN 202122410018 U CN202122410018 U CN 202122410018U CN 216077789 U CN216077789 U CN 216077789U
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Abstract
The utility model relates to an oil cylinder group with a relatively moving cylinder body, which comprises an upper oil cylinder, an upper oil cylinder body, an upper oil cylinder left piston rod and an upper oil cylinder right piston rod, wherein the upper oil cylinder left piston rod and the upper oil cylinder right piston rod are movably assembled on two sides of the upper oil cylinder body; the lower oil cylinder comprises a lower oil cylinder body and a lower oil cylinder left piston rod and a lower oil cylinder right piston rod which are movably assembled on two sides of the lower oil cylinder body, a cavity of the lower oil cylinder body is divided into a lower oil cylinder left cavity and a lower oil cylinder right cavity through the lower oil cylinder piston, corresponding second oil guide holes are respectively formed in the lower oil cylinder left piston rod and the lower oil cylinder right piston rod, and the second oil guide holes of the lower oil cylinder left piston rod are connected to the first oil guide holes of the upper oil cylinder left piston rod. The utility model has simple structure and good synchronism, and can embed the pipeline so as to effectively solve the technical problem of difficult pipeline arrangement.
Description
Technical Field
The utility model relates to an oil cylinder group with cylinder bodies moving relatively, which can effectively drive the cylinder bodies of two oil cylinders to realize synchronous action.
Background
In industrial equipment, there are many cases where two actuators are required to perform synchronous operations so as to increase the load. At present, the driving devices for driving two actuators to achieve synchronous action generally need to use various actuators to overcome the differences in load, friction, leakage, manufacturing quality, structural deformation and ensure synchronization in motion, and the forms thereof are many, such as through mechanical linkage, synchronous motors, synchronous cylinders, and the like. In the prior art, hydraulic cylinders in synchronous oil cylinders are often controlled by a plurality of valves, so that the problems of complex structure, poor synchronism and the like are caused, and particularly, when the load difference is large, the larger the distance between the oil cylinders is, the larger the stroke is, and the more serious the asynchronous phenomenon is. In the occasion with high requirement on synchronization, high-precision equipment such as a displacement sensor, a proportional servo valve and the like needs to be configured, so that the manufacturing cost is high, the cleanliness of oil is also strictly required, and the control difficulty is very high.
The existing synchronous oil cylinder has a big problem in the actual use process: the oil cylinders need to be connected through exposed pipelines, because the oil cylinders move relatively, the length of the exposed pipelines can change along with the change of the relative distance between the oil cylinders, the arrangement of the pipelines is not facilitated, and when external force influences exist, the exposed pipelines can be damaged.
Therefore, the utility model aims to design the oil cylinder group with the cylinder body moving relatively, which has a simple structure and good synchronism, can embed the pipeline and effectively solves the technical problem of difficult pipeline arrangement.
Disclosure of Invention
In view of the technical problems in the prior art, the present invention provides a cylinder assembly with a relatively moving cylinder body, which can effectively solve the technical problems in the prior art.
The technical scheme of the utility model is as follows:
a cylinder group with cylinder bodies moving relatively comprises
The upper oil cylinder comprises an upper oil cylinder body, an upper oil cylinder left piston rod and an upper oil cylinder right piston rod which are assembled on two sides of the upper oil cylinder body, an upper oil cylinder piston is arranged in the upper oil cylinder body, and a cavity of the upper oil cylinder body is divided into an upper oil cylinder left cavity and an upper oil cylinder right cavity through the upper oil cylinder piston; the inner ends of the upper oil cylinder left piston rod and the upper oil cylinder right piston rod are respectively fixed to two ends of the upper oil cylinder piston, corresponding first oil guide holes are respectively formed in the upper oil cylinder left piston rod and the upper oil cylinder right piston rod, and first oil guide oil dividing holes communicated to the upper oil cylinder left cavity and the upper oil cylinder right cavity are respectively formed in the inner ends of the first oil guide holes;
the lower oil cylinder comprises a lower oil cylinder body, a lower oil cylinder left piston rod and a lower oil cylinder right piston rod which are assembled on two sides of the lower oil cylinder body, a lower oil cylinder piston is arranged in the lower oil cylinder body, and a cavity of the lower oil cylinder body is divided into a lower oil cylinder left cavity and a lower oil cylinder right cavity through the lower oil cylinder piston; the inner ends of the lower oil cylinder left piston rod and the lower oil cylinder right piston rod are respectively fixed to two ends of the lower oil cylinder piston, corresponding second oil guide holes are respectively formed in the lower oil cylinder left piston rod and the lower oil cylinder right piston rod, and second oil guide oil dividing holes communicated to the lower oil cylinder left cavity and the lower oil cylinder right cavity are respectively formed in the inner ends of the second oil guide holes; and the second oil guide hole of the left piston rod of the lower oil cylinder is connected to the first oil guide hole of the left piston rod of the upper oil cylinder.
An upper check valve which can enable the first oil guide hole of the right piston rod of the upper oil cylinder to be communicated with the first oil guide hole of the left piston rod of the upper oil cylinder is arranged in the upper oil cylinder piston.
And a lower one-way valve which can lead the second oil guide hole of the left piston rod of the lower oil cylinder to be communicated with the second oil guide hole of the right piston rod of the lower oil cylinder is arranged in the lower oil cylinder piston.
The upper check valve comprises an upper oil passing hole arranged on the upper oil cylinder piston, the upper oil passing hole is divided into an upper closing section and an upper conducting section, the upper closing section is connected to the first oil guide hole of the upper oil cylinder right piston rod, and the upper conducting section is connected to the first oil guide hole of the upper oil cylinder left piston rod; the aperture of the upper closed section is smaller than that of the upper conducting section, and an upper sealing ball capable of sealing the upper closed section is arranged in the upper conducting section in a telescopic mode through an upper spiral spring.
The end part of the upper conduction section is connected with a corresponding upper fixing plug in a threaded connection mode, the threaded connection part of the upper conduction section and the upper fixing plug is arranged in a clearance mode, so that the upper conduction section is communicated with the first oil guide hole of the left piston rod of the upper oil cylinder, one end of the upper spiral spring is connected to the upper sealing ball, and the other end of the upper spiral spring is connected to the upper fixing plug.
The lower check valve comprises a lower oil passing hole arranged on the lower oil cylinder piston, the lower oil passing hole is divided into a lower closing section and a lower conducting section, the lower closing section is connected to a second oil guide hole of the lower oil cylinder left piston rod, and the lower conducting section is connected to a second oil guide hole of the lower oil cylinder right piston rod; the aperture of the lower closed section is smaller than that of the lower conducting section, and a lower sealing ball capable of sealing the upper closed section is arranged in the lower conducting section in a telescopic mode through a lower spiral spring.
The end part of the lower conduction section is connected with a corresponding lower fixing plug in a threaded connection mode, the threaded connection part of the lower conduction section and the lower fixing plug is arranged in a clearance mode, the lower conduction section is communicated with the second oil guide hole of the right piston rod of the lower oil cylinder, one end of the lower spiral spring is connected to the lower sealing ball, and the other end of the lower spiral spring is connected to the lower fixing plug.
The end parts of the upper oil cylinder right piston rod and the lower oil cylinder right piston rod are connected with a corresponding right oil passing block, and the right oil passing block is respectively provided with a first oil guide hole communicated to the upper oil cylinder right piston rod and an external oil port on a second oil guide hole of the lower oil cylinder right piston rod.
The end parts of the upper oil cylinder left piston rod and the lower oil cylinder left piston rod are connected with a corresponding left oil passing block, and an oil path channel for communicating a first oil guide hole of the upper oil cylinder left piston rod with a second oil guide hole of the lower oil cylinder left piston rod is arranged on the left oil passing block.
The utility model has the advantages that:
1) compared with the existing synchronous oil cylinder, the synchronous oil cylinder has the advantages that the upper oil cylinder body and the lower oil cylinder body can be precisely and synchronously driven without additionally arranging components such as a displacement sensor and the like, so that corresponding executing parts can be driven by the upper oil cylinder body and the lower oil cylinder body, the integral structure is simple, and the driving synchronism of the upper oil cylinder body and the lower oil cylinder body can be effectively ensured.
2) The pipelines, namely the first oil guide hole, the second oil guide hole and the second oil guide hole are respectively arranged in the upper oil cylinder left piston rod, the upper oil cylinder right piston rod, the lower oil cylinder left piston rod and the lower oil cylinder right piston rod, so that the originally external pipelines are effectively arranged in the pipelines, and the technical problem of difficult pipeline arrangement is effectively solved.
3) The utility model can smoothly perform oil injection and air exhaust operations when the air-conditioning system is put into use for the first time by arranging the upper check valve and the lower check valve, thereby effectively ensuring the practical effect of the air-conditioning system.
4) Because the threaded connection part of the upper conduction section and the upper fixing plug and the threaded connection part of the lower conduction section and the lower fixing plug are arranged in a clearance mode, the upper conduction section and the first oil guide hole of the upper oil cylinder left piston rod and the second oil guide hole of the lower conduction section and the second oil guide hole of the lower oil cylinder right piston rod can be communicated with each other and can form a damping hole, and when oil is leaked from the upper oil cylinder left cavity and the lower oil cylinder left cavity or too much oil is generated in the upper oil cylinder left cavity and the lower oil cylinder left cavity in the using process, automatic oil supplementing and draining can be performed in time, and therefore the practical effect of the oil-filling oil.
5) According to the utility model, through the arrangement of the right oil passing block and the left oil passing block, the upper oil cylinder and the lower oil cylinder can be effectively and stably installed, and the connecting pipeline can be further arranged in the right oil passing block and the left oil passing block, so that the originally external pipeline is further built in, and the technical problem of difficult pipeline arrangement is further effectively solved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic structural view of an upper check valve arranged in the upper cylinder piston.
Fig. 4 is a schematic structural view of the lower check valve arranged in the lower cylinder piston.
Fig. 5 is a sectional view a-a in fig. 1.
Fig. 6 is a sectional view taken along line B-B in fig. 1.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings:
referring to fig. 1-6, a cylinder assembly with relative cylinder movement includes
The upper oil cylinder 1 comprises an upper oil cylinder body 101, and an upper oil cylinder left piston rod 102 and an upper oil cylinder right piston rod 103 which are assembled on two sides of the upper oil cylinder body 101, wherein an upper oil cylinder piston 104 is arranged in the upper oil cylinder body 101, and the cavity of the upper oil cylinder body 101 is divided into an upper oil cylinder left cavity 1011 and an upper oil cylinder right cavity 1012 by the upper oil cylinder piston 104; the inner ends of the upper oil cylinder left piston rod 102 and the upper oil cylinder right piston rod 103 are respectively fixed to two ends of the upper oil cylinder piston 104, corresponding first oil guide holes 2 are respectively formed in the upper oil cylinder left piston rod 102 and the upper oil cylinder right piston rod 103, and first oil guide dividing holes 3 communicated to the upper oil cylinder left cavity 1011 and the upper oil cylinder right cavity 1012 are respectively formed in the inner ends of the first oil guide holes 2;
the lower oil cylinder 4 comprises a lower oil cylinder body 401, and a lower oil cylinder left piston rod 402 and a lower oil cylinder right piston rod 403 which are assembled on two sides of the lower oil cylinder body 401, wherein a lower oil cylinder piston 404 is arranged in the lower oil cylinder body 401, and a cavity of the lower oil cylinder body 401 is divided into a lower oil cylinder left cavity 4011 and a lower oil cylinder right cavity 4012 through the lower oil cylinder piston 404; the inner ends of the lower cylinder left piston rod 402 and the lower cylinder right piston rod 403 are respectively fixed to two ends of the lower cylinder piston 404, the lower cylinder left piston rod 402 and the lower cylinder right piston rod 403 are respectively provided with a corresponding second oil guide hole 5, and the inner ends of the second oil guide holes 5 are respectively provided with a second oil guide hole 6 communicated to the lower cylinder left cavity 4011 and the lower cylinder right cavity 4012; the second oil guide hole 5 of the lower cylinder left piston rod 402 is connected to the first oil guide hole 2 of the upper cylinder left piston rod 102.
An upper check valve 7 which can enable the first oil guide hole 2 of the upper cylinder right piston rod 103 to be communicated with the first oil guide hole 2 of the upper cylinder left piston rod 102 is arranged in the upper cylinder piston 104.
A lower one-way valve 8 is arranged in the lower cylinder piston 404, and can enable the second oil guide hole 5 of the lower cylinder left piston rod 402 to be communicated with the second oil guide hole 5 of the lower cylinder right piston rod 403.
The upper check valve 7 comprises an upper oil passing hole arranged on the upper cylinder piston 104, the upper oil passing hole is divided into an upper closing section 701 and an upper conducting section 702, the upper closing section 701 is connected to the first oil guiding hole 2 of the upper cylinder right piston rod 103, and the upper conducting section 702 is connected to the first oil guiding hole 2 of the upper cylinder left piston rod 102; the aperture of the upper closing section 701 is smaller than that of the upper conducting section 702, and an upper sealing ball 704 capable of sealing the upper closing section 701 is telescopically mounted in the upper conducting section 702 through an upper spiral spring 703.
The end of the upper conducting section 702 is connected with a corresponding upper fixing plug 705 in a threaded connection manner, a gap is formed at the threaded connection between the upper conducting section 702 and the upper fixing plug 705, so that the upper conducting section 702 is communicated with the first oil guide hole 2 of the upper cylinder left piston rod 102, one end of the upper coil spring 703 is connected to the upper sealing ball 704, and the other end of the upper coil spring 703 is connected to the upper fixing plug 705.
The lower check valve 8 comprises a lower oil passing hole arranged on the lower cylinder piston 404, the lower oil passing hole is divided into a lower closing section 801 and a lower conducting section 802, the lower closing section 801 is connected to the second oil guiding hole 5 of the lower cylinder left piston rod 402, and the lower conducting section 802 is connected to the second oil guiding hole 5 of the lower cylinder right piston rod 403; the aperture of the lower closing section 801 is smaller than that of the lower conducting section 802, and a lower sealing ball 804 capable of forming a seal for the lower closing section 801 is telescopically mounted in the lower conducting section 802 through a lower spiral spring 803.
The end of the lower conducting section 802 is connected with a corresponding lower fixing plug 805 in a threaded connection manner, the threaded connection between the lower conducting section 802 and the lower fixing plug 805 is arranged in a gap manner, so that the lower conducting section 802 and the second oil guide hole 5 of the right piston rod 403 of the lower oil cylinder are communicated with each other, one end of the lower coil spring 803 is connected to the lower sealing ball 804, and the other end of the lower coil spring 803 is connected to the lower fixing plug 805.
The end parts of the upper cylinder right piston rod 103 and the lower cylinder right piston rod 403 are connected with a corresponding right oil passing block 9, and the right oil passing block 9 is respectively provided with a first oil guide hole 2 communicated to the upper cylinder right piston rod 103 and an external oil port 10 on a second oil guide hole 5 of the lower cylinder right piston rod 403.
The end parts of the upper cylinder left piston rod 102 and the lower cylinder left piston rod 402 are connected with a corresponding left oil passing block 11, and an oil passage 12 for communicating the first oil guide hole 2 of the upper cylinder left piston rod 102 with the second oil guide hole 5 of the lower cylinder left piston rod 402 is arranged on the left oil passing block 11.
When the utility model is used for the first time: the upper cylinder piston 104 is located at the right end of the upper cylinder body 101, the lower cylinder piston 404 is located at the left end of the lower cylinder body 401, and the upper cylinder left cavity 1011 and the lower cylinder right cavity 4012 are filled with air, and hydraulic oil needs to be injected to discharge the air. Firstly, hydraulic oil is injected into an upper oil cylinder right cavity 1012 through a first oil guide hole 2 of an upper oil cylinder right piston rod 103 to push an upper oil cylinder body 101 to move rightwards, and air in an upper oil cylinder left cavity 1011 is exhausted outwards from an upper oil cylinder left piston rod 102 through a lower oil cylinder 4 under the extrusion of an upper oil cylinder piston 104; with the continuous entering of hydraulic oil, the upper check valve 7 is conducted after bearing pressure, so that the upper oil cylinder right piston rod 103 and the upper oil cylinder left piston rod 102 are in a communicated state, the hydraulic oil slowly enters the lower oil cylinder left piston rod 402 from the upper oil cylinder left piston rod 102 through the upper check valve 7 and then enters the lower oil cylinder left cavity 4011 to be slowly filled with oil so as to push the lower oil cylinder body 401 to slowly move leftwards, air in the lower oil cylinder right cavity 4012 is discharged under the extrusion of the lower oil cylinder piston 404, and the inside of the oil cylinder group is filled with the hydraulic oil after the air is exhausted; then, hydraulic oil is injected into the lower cylinder right cavity 4012 through the second oil guide hole 5 of the lower cylinder right piston rod 403, the lower check valve 8 is under a locked state due to a large pressure, the lower cylinder body 401 moves rightwards along with the injection of the hydraulic oil, the hydraulic oil in the lower cylinder left cavity 4011 enters the upper cylinder left cavity 1011 through the lower cylinder left piston rod 402 and the upper cylinder left piston rod 102 under the extrusion of the lower cylinder piston 404, so as to push the upper cylinder body 101 to move leftwards, and the hydraulic oil in the upper cylinder right cavity 1012 is discharged under the extrusion of the upper cylinder piston 104. Therefore, by providing the upper check valve 7 and the lower check valve 8, the present invention can smoothly perform the operations of filling oil and discharging air when first put into use, thereby effectively ensuring the practical effects of the present invention.
Because the threaded connection between the upper conducting section 702 and the upper fixing plug 705 and the threaded connection between the lower conducting section 802 and the lower fixing plug 805 are arranged in a clearance manner, the threaded connection not only can enable the upper conducting section 702 and the first oil guide hole 2 of the upper cylinder left piston rod 102 and the second oil guide hole 5 of the lower conducting section 802 and the lower cylinder right piston rod 403 to be communicated with each other, but also can form a damping hole, and when oil is leaked from the upper cylinder left cavity 1011 and the lower cylinder left cavity 4011 or too much oil is leaked from the lower cylinder left cavity 4011 in the use process, automatic oil supplementing and draining can be performed in time, so that the practical effect of the oil-filling hydraulic cylinder is greatly improved.
When the utility model is used in normal times: hydraulic oil enters an upper oil cylinder right cavity 1012 through a first oil guide hole 2 and a first oil guide branch hole 3 of the upper oil cylinder right piston rod 103 so as to push the upper oil cylinder body 101 to move rightwards; under the extrusion of the upper cylinder piston 104, the hydraulic oil in the upper cylinder left cavity 1011 enters the second oil guide hole 5 of the lower cylinder left piston rod 402 along the first oil guide hole 2 and the first oil guide hole 3 of the upper cylinder left piston rod 102 in equal amount, and enters the lower cylinder left cavity 4011 along the second oil guide hole 6, so as to synchronously push the lower cylinder body 401 to move leftwards. On the contrary, the hydraulic oil enters the lower cylinder right cavity 4012 through the second oil guide hole 5 and the second oil guide branch hole 6 of the lower cylinder right piston rod 403 to push the lower cylinder body 401 to move rightwards; under the extrusion of the lower cylinder piston 404, the hydraulic oil in the lower cylinder left cavity 4011 enters the first oil guide hole 2 of the upper cylinder left piston rod 102 along the second oil guide hole 6 and the second oil guide hole 5 of the lower cylinder left piston rod 402 in equal quantity, and enters the upper cylinder left cavity 1011 along the first oil guide hole 3, so as to synchronously push the upper cylinder body 101 to move leftwards. Compared with the existing synchronous oil cylinder, the synchronous oil cylinder has the advantages that components such as a displacement sensor do not need to be additionally configured, accurate synchronous driving can be conducted on the upper oil cylinder body 101 and the lower oil cylinder body 401, the structure is simple, and the driving synchronism of the upper oil cylinder body 101 and the lower oil cylinder body 401 can be effectively guaranteed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (9)
1. A cylinder group with cylinder bodies moving relatively is characterized in that: comprises that
The upper oil cylinder (1) comprises an upper oil cylinder body (101) and an upper oil cylinder left piston rod (102) and an upper oil cylinder right piston rod (103) which are assembled on two sides of the upper oil cylinder body (101), an upper oil cylinder piston (104) is arranged in the upper oil cylinder body (101), and the cavity of the upper oil cylinder body (101) is divided into an upper oil cylinder left cavity (1011) and an upper oil cylinder right cavity (1012) through the upper oil cylinder piston (104); the inner ends of the upper oil cylinder left piston rod (102) and the upper oil cylinder right piston rod (103) are respectively fixed to two ends of the upper oil cylinder piston (104), corresponding first oil guide holes (2) are respectively formed in the upper oil cylinder left piston rod (102) and the upper oil cylinder right piston rod (103), and first oil guide dividing holes (3) communicated to the upper oil cylinder left cavity (1011) and the upper oil cylinder right cavity (1012) are respectively formed in the inner ends of the first oil guide holes (2);
the lower oil cylinder (4) comprises a lower oil cylinder body (401), and a lower oil cylinder left piston rod (402) and a lower oil cylinder right piston rod (403) which are assembled on two sides of the lower oil cylinder body (401), a lower oil cylinder piston (404) is arranged in the lower oil cylinder body (401), and a cavity of the lower oil cylinder body (401) is divided into a lower oil cylinder left cavity (4011) and a lower oil cylinder right cavity (4012) through the lower oil cylinder piston (404); the inner ends of the lower cylinder left piston rod (402) and the lower cylinder right piston rod (403) are respectively fixed to two ends of the lower cylinder piston (404), the lower cylinder left piston rod (402) and the lower cylinder right piston rod (403) are respectively provided with corresponding second oil guide holes (5), and the inner ends of the second oil guide holes (5) are respectively provided with second oil guide holes (6) communicated to the lower cylinder left cavity (4011) and the lower cylinder right cavity (4012); the second oil guide hole (5) of the lower oil cylinder left piston rod (402) is connected to the first oil guide hole (2) of the upper oil cylinder left piston rod (102).
2. A cylinder group with cylinder bodies moving relatively according to claim 1, wherein: an upper check valve (7) which can enable the first oil guide hole (2) of the upper oil cylinder right piston rod (103) to be communicated with the first oil guide hole (2) of the upper oil cylinder left piston rod (102) is arranged in the upper oil cylinder piston (104).
3. A cylinder group with cylinder bodies moving relatively according to claim 2, wherein: and a lower one-way valve (8) which can enable the second oil guide hole (5) of the lower cylinder left piston rod (402) to be communicated with the second oil guide hole (5) of the lower cylinder right piston rod (403) is arranged in the lower cylinder piston (404).
4. A cylinder group with cylinder bodies moving relatively according to claim 2, wherein: the upper check valve (7) comprises an upper oil passing hole arranged on the upper cylinder piston (104), the upper oil passing hole is divided into an upper closing section (701) and an upper conducting section (702), the upper closing section (701) is connected to the first oil guiding hole (2) of the upper cylinder right piston rod (103), and the upper conducting section (702) is connected to the first oil guiding hole (2) of the upper cylinder left piston rod (102); the aperture of the upper closing section (701) is smaller than that of the upper conducting section (702), and an upper sealing ball (704) capable of sealing the upper closing section (701) is telescopically mounted in the upper conducting section (702) through an upper spiral spring (703).
5. A cylinder group with cylinder bodies moving relatively according to claim 4, wherein: the end part of the upper conduction section (702) is connected with a corresponding upper fixing plug (705) in a threaded connection mode, the threaded connection part of the upper conduction section (702) and the upper fixing plug (705) is arranged in a clearance mode, so that the upper conduction section (702) is communicated with the first oil guide hole (2) of the upper cylinder left piston rod (102), one end of the upper spiral spring (703) is connected to the upper sealing ball (704), and the other end of the upper spiral spring (703) is connected to the upper fixing plug (705).
6. A cylinder group with cylinder bodies moving relatively according to claim 3, wherein: the lower check valve (8) comprises a lower oil passing hole arranged on the lower cylinder piston (404), the lower oil passing hole is divided into a lower closing section (801) and a lower conducting section (802), the lower closing section (801) is connected to the second oil guiding hole (5) of the lower cylinder left piston rod (402), and the lower conducting section (802) is connected to the second oil guiding hole (5) of the lower cylinder right piston rod (403); the aperture of the lower closing section (801) is smaller than that of the lower conducting section (802), and a lower sealing ball (804) capable of forming a seal for the lower closing section (801) is telescopically mounted in the lower conducting section (802) through a lower spiral spring (803).
7. The cylinder group with the cylinder bodies moving relatively according to claim 6, wherein: the end part of the lower conduction section (802) is connected with a corresponding lower fixing plug (805) in a threaded connection mode, the threaded connection part of the lower conduction section (802) and the lower fixing plug (805) is arranged in a clearance mode, so that the lower conduction section (802) is communicated with the second oil guide hole (5) of the right piston rod (403) of the lower oil cylinder, one end of the lower spiral spring (803) is connected to the lower sealing ball (804), and the other end of the lower spiral spring (803) is connected to the lower fixing plug (805).
8. A cylinder group with cylinder bodies moving relatively according to claim 1, wherein: the end parts of the upper oil cylinder right piston rod (103) and the lower oil cylinder right piston rod (403) are connected with a corresponding right oil passing block (9), and a first oil guide hole (2) communicated to the upper oil cylinder right piston rod (103) and an external oil port (10) on a second oil guide hole (5) of the lower oil cylinder right piston rod (403) are respectively arranged on the right oil passing block (9).
9. A cylinder group with cylinder bodies moving relatively according to claim 8, wherein: the end parts of the upper oil cylinder left piston rod (102) and the lower oil cylinder left piston rod (402) are connected with a corresponding left oil passing block (11), and an oil path channel (12) for communicating a first oil guide hole (2) of the upper oil cylinder left piston rod (102) with a second oil guide hole (5) of the lower oil cylinder left piston rod (402) is arranged on the left oil passing block (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122410018.7U CN216077789U (en) | 2021-09-30 | 2021-09-30 | Cylinder set with cylinder body moving relatively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122410018.7U CN216077789U (en) | 2021-09-30 | 2021-09-30 | Cylinder set with cylinder body moving relatively |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077789U true CN216077789U (en) | 2022-03-18 |
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ID=80637541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122410018.7U Active CN216077789U (en) | 2021-09-30 | 2021-09-30 | Cylinder set with cylinder body moving relatively |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216077789U (en) |
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2021
- 2021-09-30 CN CN202122410018.7U patent/CN216077789U/en active Active
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