Oil cylinder device

Abstract

The invention provides an oil cylinder device, and belongs to the field of hydraulic devices. The oil cylinder device comprises a cylinder body, a transverse piston rod, a longitudinal piston rod, a first lateral piston rod and a second lateral piston rod, the cylinder body is provided with a first oil port and a second oil port; the moving direction of the transverse piston rod is the first direction, the moving direction of the longitudinal piston rod is the second direction, the moving directions of the first lateral piston rod and the second lateral piston rod are the third direction, and included angles are formed among the first direction, the second direction and the third direction. When one of the first oil port and the second oil port enters oil and the other one of the first oil port and the second oil port discharges oil, the transverse piston rod, the longitudinal piston rod, the first lateral piston rod and the second lateral piston rod move relative to the cylinder body. According to the invention, driving force in multiple directions can be provided in a narrow space.

Description

Technical Field

[0001] The present invention belongs to the field of hydraulic devices, and in particular relates to an oil cylinder device. Background Art

[0002] The cylinder device is a common hydraulic actuator that can convert hydraulic energy into mechanical energy for output driving force.

[0003] In the related art, a common oil cylinder device mainly includes a cylinder body and a piston rod, one end of the piston rod is movably inserted into the cylinder body, and the other end of the piston rod is located outside the cylinder body. By outputting hydraulic oil into the cylinder body, the piston rod can be driven to move in a linear direction, thereby outputting a driving force in the linear direction.

[0004] However, there are some special use scenarios where the space is relatively small and driving forces in multiple directions are required. The oil cylinder device in the related art cannot meet the demand for driving forces in multiple directions. If multiple oil cylinder devices are set, they cannot be used in small spaces. Summary of the invention

[0005] The embodiment of the present disclosure provides a cylinder device that can provide driving force in multiple directions in a narrow space. The technical solution is as follows:

[0006] The embodiment of the present disclosure provides an oil cylinder device, comprising a cylinder body, and a transverse piston rod, a longitudinal piston rod, a first lateral piston rod and a second lateral piston rod movably inserted in the cylinder body;

[0007] The cylinder body has a first oil port and a second oil port;

[0008] The moving direction of the transverse piston rod is a first direction, the moving direction of the longitudinal piston rod is a second direction, the moving directions of the first lateral piston rod and the second lateral piston rod are a third direction, and the first direction, the second direction and the third direction all have an included angle;

[0009] When oil is introduced into one of the first oil port and the second oil port, oil is discharged from the other of the first oil port and the second oil port, and the transverse piston rod, the longitudinal piston rod, the first lateral piston rod and the second lateral piston rod all move relative to the cylinder body.

[0010] In one implementation of the present disclosure, the cylinder comprises a transverse section, a longitudinal section and a lateral section;

[0011] One end of the transverse section is connected to the lateral section, and the other end of the transverse section is connected to the longitudinal section;

[0012] The transverse piston rod is movably inserted in the transverse section, the longitudinal piston rod is movably inserted in the longitudinal section, the first lateral piston rod is movably inserted in one end of the lateral section, and the second lateral piston rod is movably inserted in the other end of the lateral section.

[0013] In one implementation of the present disclosure, the piston of the transverse piston rod divides the interior space of the transverse section into a first transverse chamber and a second transverse chamber;

[0014] The piston of the longitudinal piston rod divides the interior space of the longitudinal section into a first longitudinal cavity and a second longitudinal cavity;

[0015] The piston of the first lateral piston rod and the piston of the second lateral piston rod divide the internal space of the lateral section into a first lateral chamber, a second lateral chamber, a third lateral chamber and a fourth lateral chamber;

[0016] The first oil port, the first transverse cavity, the first longitudinal cavity, the second lateral cavity, and the third lateral cavity are connected to each other;

[0017] The second oil port, the second transverse cavity, the second longitudinal cavity, the first lateral cavity, and the fourth lateral cavity are connected to each other.

[0018] In an implementation of the present disclosure, a first oil passage is provided in the transverse section, the length direction of the first oil passage is consistent with the length direction of the transverse section, and a first end of the first oil passage is connected to the first transverse cavity;

[0019] A second oil passage is provided in the longitudinal section, the length direction of the second oil passage is consistent with the length direction of the longitudinal section, the first end of the second oil passage is connected to the second end of the first oil passage, and the second end of the second oil passage is connected to the first longitudinal cavity.

[0020] In one implementation of the present disclosure, a third oil channel and a fourth oil channel are provided in the lateral section, the length direction of the third oil channel and the length direction of the fourth oil channel are both consistent with the length direction of the lateral section, the first end of the third oil channel is connected to the first lateral cavity, the first end of the fourth oil channel is connected to the fourth lateral cavity, and the second end of the third oil channel and the second end of the fourth oil channel are respectively connected to the second oil port.

[0021] In one implementation of the present disclosure, there is a fifth oil channel in the transverse section, the length direction of the fifth oil channel is consistent with the length direction of the transverse section, the first end of the fifth oil channel is respectively connected to the second transverse cavity and the second longitudinal cavity, and the second end of the fifth oil channel is connected to the second oil port.

[0022] In an implementation of the present disclosure, the inner wall of the first transverse cavity has a transverse limiting flange, and the transverse limiting flange is located at a portion of the first transverse cavity away from the second transverse cavity.

[0023] In an implementation of the present disclosure, the inner wall of the second longitudinal cavity has a longitudinal limiting flange, and the longitudinal limiting flange is located at a portion of the second longitudinal cavity away from the first longitudinal cavity.

[0024] In one implementation of the present disclosure, the inner wall of the second lateral cavity and the inner wall of the third lateral cavity both have lateral limit flanges, the lateral limit flange of the second lateral cavity is located away from the first lateral cavity, and the lateral limit flange of the third lateral cavity is located away from the fourth lateral cavity.

[0025] In one implementation of the present disclosure, the transverse piston rod is a double-headed piston rod;

[0026] One end of the transverse piston rod is located outside one end of the transverse section, and the other end of the transverse piston rod is located outside the other end of the transverse section.

[0027] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:

[0028] The cylinder device provided in the embodiment of the present disclosure has a transverse piston rod, a longitudinal piston rod, a first lateral piston rod and a second lateral piston rod. The moving direction of the transverse piston rod is a first direction, the moving direction of the longitudinal piston rod is a second direction, the moving directions of the first lateral piston rod and the second lateral piston rod are a third direction, and there is an angle between the first direction, the second direction and the third direction. Therefore, the cylinder device can output driving force in three directions. In addition, since the transverse piston rod, the longitudinal piston rod, the first lateral piston rod and the second lateral piston rod share the same cylinder body, the installation space can be effectively saved, so that the cylinder device can be installed and used in a relatively small space.

[0029] That is to say, the cylinder device provided in the embodiment of the present disclosure can not only be used in a small space, but also can output driving force in multiple directions, and can be suitable for use scenarios in which driving force in multiple directions is output in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 is a structural schematic diagram of an oil cylinder device provided in an embodiment of the present disclosure;

[0032] Figure 2 The embodiment of the present disclosure provides Figure 1 AA direction cross-sectional view;

[0033] Figure 3 The embodiment of the present disclosure provides Figure 1 BB direction cross-sectional view;

[0034] Figure 4 The embodiment of the present disclosure provides Figure 1 CC direction cross-sectional view;

[0035] Figure 5 The embodiment of the present disclosure provides Figure 1 DD direction cross-sectional view.

[0036] The symbols in the figure mean the following:

[0037] 10. Cylinder body;

[0038] 110, first oil port; 120, second oil port; 130, transverse section; 131, first transverse cavity; 132, second transverse cavity; 133, first oil passage; 134, fifth oil passage; 135, transverse limit flange; 140, longitudinal section; 141, first longitudinal cavity; 142, second longitudinal cavity; 143, second oil passage; 144, longitudinal limit flange; 150, lateral section; 151, first lateral cavity; 152, second lateral cavity; 153, third lateral cavity; 154, fourth lateral cavity; 155, third oil passage; 156, fourth oil passage; 157, lateral limit flange;

[0039] 20. Transverse piston rod;

[0040] 30. Longitudinal piston rod;

[0041] 40. A first lateral piston rod;

[0042] 50. Second lateral piston rod. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0044] Figure 1 The structural diagram of the oil cylinder device provided in the embodiment of the present disclosure is shown in FIG. Figure 1In this embodiment, the cylinder device includes a cylinder body 10, and a transverse piston rod 20, a longitudinal piston rod 30, a first lateral piston rod 40 and a second lateral piston rod 50 which are movably inserted into the cylinder body 10.

[0045] The cylinder body 10 has a first oil port 110 and a second oil port 120, the moving direction of the transverse piston rod 20 is a first direction a, the moving direction of the longitudinal piston rod 30 is a second direction b, and the moving direction of the first lateral piston rod 40 and the second lateral piston rod 50 is a third direction c. There is an angle between the first direction a, the second direction b and the third direction c. When oil is introduced into one of the first oil port 110 and the second oil port 120 and oil is discharged from the other of the first oil port 110 and the second oil port 120, the transverse piston rod 20, the longitudinal piston rod 30, the first lateral piston rod 40 and the second lateral piston rod 50 all move relative to the cylinder body 10.

[0046] The cylinder device provided in the embodiment of the present disclosure has a transverse piston rod 20, a longitudinal piston rod 30, a first lateral piston rod 40 and a second lateral piston rod 50. Among them, the moving direction of the transverse piston rod 20 is the first direction a, the moving direction of the longitudinal piston rod 30 is the second direction b, the moving directions of the first lateral piston rod 40 and the second lateral piston rod 50 are the third direction c, and there is an angle between the first direction a, the second direction b and the third direction c. Therefore, the cylinder device can output driving force in three directions. In addition, since the transverse piston rod 20, the longitudinal piston rod 30, the first lateral piston rod 40 and the second lateral piston rod 50 share the same cylinder body 10, it is possible to effectively save installation space, so that the cylinder device can be installed and used in a relatively small space.

[0047] That is to say, the cylinder device provided in the embodiment of the present disclosure can not only be used in a small space, but also can output driving force in multiple directions, and can be suitable for use scenarios in which driving force in multiple directions is output in a small space.

[0048] In this embodiment, the first direction a, the second direction b and the third direction c are perpendicular to each other, that is, the angle between the first direction a, the second direction b and the third direction c is a right angle. In other embodiments, the angle between the first direction a, the second direction b and the third direction c can also be adjusted according to actual needs, and the present disclosure does not limit this.

[0049] Continue to see Figure 1 In this embodiment, the cylinder body 10 includes a transverse section 130 , a longitudinal section 140 and a lateral section 150 . One end of the transverse section 130 is connected to the lateral section 150 , and the other end of the transverse section 130 is connected to the longitudinal section 140 .

[0050] The transverse piston rod 20 is movably inserted in the transverse section 130 , the longitudinal piston rod 30 is movably inserted in the longitudinal section 140 , the first lateral piston rod 40 is movably inserted in one end of the lateral section 150 , and the second lateral piston rod 50 is movably inserted in the other end of the lateral section 150 .

[0051] In the above implementation, the transverse section 130 serves as the installation base for the transverse piston rod 20 , the longitudinal section 140 serves as the installation base for the longitudinal piston rod 30 , and the lateral section 150 serves as the installation base for the first lateral piston rod 40 and the second lateral piston rod 50 .

[0052] Exemplarily, the length direction of the transverse segment 130 is the first direction a, the length direction of the longitudinal segment 140 is the second direction b, and the length direction of the lateral segment 150 is the third direction c.

[0053] Such design makes the length direction of the transverse section 130 consistent with the moving direction of the transverse piston rod 20, the length direction of the longitudinal section 140 consistent with the moving direction of the lateral piston rod, and the length direction of the lateral section 150 consistent with the moving direction of the first lateral piston rod 40 and the second lateral piston rod 50.

[0054] Exemplarily, a first end of the transverse segment 130 is connected to a middle portion of the lateral segment 150 , and a second end of the transverse segment 130 is connected to an end portion of the longitudinal segment 140 .

[0055] In the above implementation, the transverse section 130, the longitudinal section 140 and the lateral section 150 are arranged reasonably so that the three do not affect each other and the structure is compact. In addition, it is also beneficial to arrange the transverse piston rod 20, the longitudinal piston rod 30, the first lateral piston rod 40 and the second lateral piston rod 50 so that they do not affect each other.

[0056] Exemplarily, the transverse section 130 , the longitudinal section 140 and the lateral section 150 are integrated structural parts, which can ensure the structural integrity and sealing performance of the cylinder body 10 on the one hand, and improve the manufacturing efficiency of the cylinder body 10 on the other hand.

[0057] In this embodiment, the transverse piston rod 20 is a double-headed piston rod, one end of the transverse piston rod 20 is located outside one end of the transverse section 130 , and the other end of the transverse piston rod 20 is located outside the other end of the transverse section 130 .

[0058] In the above implementation, the double-headed piston rod refers to a piston and two rods, which are located on opposite sides of the piston. When the piston moves, it will drive the two rods to move together, so that the transverse piston rod 20 can output driving force in two directions at the same time.

[0059] In this embodiment, the longitudinal piston rod 30, the first lateral piston rod 40, and the second lateral piston rod 50 are single-headed piston rods.

[0060] In the above implementation, the single-head piston rod refers to a piston rod and a rod member, and the rod member is located on one side of the piston. When the piston moves, it drives the rod member to move to output a driving force in one direction.

[0061] Such design is to avoid interference and collision between the longitudinal piston rod 30, the first lateral piston rod 40, the second lateral piston rod 50 and the transverse piston rod 20, thereby effectively improving the reliability of the oil cylinder device.

[0062] Figure 2 for Figure 1 AA direction section view, combined with Figure 2 In this embodiment, the piston of the transverse piston rod 20 divides the internal space of the transverse section 130 into a first transverse chamber 131 and a second transverse chamber 132 .

[0063] In the above implementation, the first transverse cavity 131 is close to the lateral segment 150 , and the second transverse cavity 132 is close to the longitudinal segment 140 .

[0064] In this embodiment, the piston of the longitudinal piston rod 30 divides the inner space of the longitudinal section 140 into a first longitudinal cavity 141 and a second longitudinal cavity 142 .

[0065] In the above implementation, the first longitudinal cavity 141 is far away from the transverse section 130 , and the second longitudinal cavity 142 is close to the transverse section 130 .

[0066] Figure 3 for Figure 1 BB direction cross-sectional view, combined with Figure 3 In this embodiment, the piston of the first lateral piston rod 40 and the piston of the second lateral piston rod 50 divide the internal space of the lateral section 150 into a first lateral cavity 151, a second lateral cavity 152, a third lateral cavity 153 and a fourth lateral cavity 154.

[0067] In the above implementation, the first lateral cavity 151, the second lateral cavity 152, the third lateral cavity 153 and the fourth lateral cavity 154 are arranged in sequence along the length direction of the lateral section 150, the first lateral cavity 151 and the second lateral cavity 152 are located on one side of the first transverse cavity 131, and the third lateral cavity 153 and the fourth lateral cavity 154 are located on the other side of the first transverse cavity 131.

[0068] See also Figure 2 and Figure 3 , the first oil port 110, the first transverse cavity 131, the second lateral cavity 152 and the third lateral cavity 153 are connected. Figure 4 for Figure 1 CC direction cross-sectional view, combined with Figure 4 , the first transverse cavity 131 is connected to the first longitudinal cavity 141. In summary, the first oil port 110, the first transverse cavity 131, the first longitudinal cavity 141, the second lateral cavity 152, and the third lateral cavity 153 are connected to each other.

[0069] See also Figure 2 The first oil port 110 , the second transverse cavity 132 and the second longitudinal cavity 142 are connected. Figure 5 for Figure 1 DD direction cross-sectional view, combined with Figure 5 , the second oil port 120, the first lateral cavity 151, and the fourth lateral cavity 154 are connected. In summary, the second oil port 120, the second transverse cavity 132, the second longitudinal cavity 142, the first lateral cavity 151, and the fourth lateral cavity 154 are connected to each other.

[0070] When oil enters the first oil port 110, high-pressure hydraulic oil flows into the first transverse cavity 131, the first longitudinal cavity 141, the second lateral cavity 152, and the third lateral cavity 153, so that the end of the transverse piston rod 20 close to the longitudinal section 140 extends, the longitudinal piston rod 30 retracts, and the first lateral piston rod 40 and the second lateral piston rod 50 extend. At the same time, the low-pressure hydraulic oil in the second transverse cavity 132, the second longitudinal cavity 142, the first lateral cavity 151, and the fourth lateral cavity 154 flows back through the second oil port 120.

[0071] When oil enters the second oil port 120, high-pressure hydraulic oil flows into the second transverse cavity 132, the second longitudinal cavity 142, the first lateral cavity 151, and the fourth lateral cavity 154, so that the end of the transverse piston rod 20 close to the lateral section 150 extends, the longitudinal piston rod 30 extends, and the first lateral piston rod 40 and the second lateral piston rod 50 retract. At the same time, the low-pressure hydraulic oil in the first transverse cavity 131, the first longitudinal cavity 141, the second lateral cavity 152, and the third lateral cavity 153 flows back through the first oil port 110.

[0072] Combination Figure 2 and Figure 4 In this embodiment, the transverse section 130 has a first oil passage 133, the length direction of the first oil passage 133 is consistent with the length direction of the transverse section 130, and the first end of the first oil passage 133 is connected to the first transverse cavity 131. The longitudinal section 140 has a second oil passage 143, the length direction of the second oil passage 143 is consistent with the length direction of the longitudinal section 140, the first end of the second oil passage 143 is connected to the second end of the first oil passage 133, and the second end of the second oil passage 143 is connected to the first longitudinal cavity 141.

[0073] In the above implementation, the first transverse cavity 131 and the first longitudinal cavity 141 can be connected through the first oil passage 133 and the second oil passage 143. In addition, since the length direction of the first oil passage 133 is consistent with the length direction of the transverse section 130, the first oil passage 133 will not interfere with the transverse piston rod 20. Similarly, since the length direction of the second oil passage 143 is consistent with the length direction of the longitudinal section 140, the second oil passage 143 will not interfere with the longitudinal piston rod 30.

[0074] Combination Figure 5 In this embodiment, the lateral section 150 has a third oil passage 155 and a fourth oil passage 156, the length direction of the third oil passage 155 and the length direction of the fourth oil passage 156 are consistent with the length direction of the lateral section 150, the first end of the third oil passage 155 is connected to the first lateral cavity 151, the first end of the fourth oil passage 156 is connected to the fourth lateral cavity 154, and the second end of the third oil passage 155 and the second end of the fourth oil passage 156 are respectively connected to the second oil port 120.

[0075] In the above implementation, the first lateral chamber 151 and the second oil port 120 can be communicated with each other through the third oil passage 155, and the second lateral chamber 152 and the second oil port 120 can be communicated with each other through the fourth oil passage 156. In addition, since the length directions of the third oil passage 155 and the fourth oil passage 156 are consistent with the length direction of the lateral section 150, the third oil passage 155 and the fourth oil passage 156 will not interfere with the first lateral piston rod 40 and the second lateral piston rod 50.

[0076] Combination Figure 2 and Figure 5 In this embodiment, a fifth oil passage 134 is provided in the transverse section 130, the length direction of the fifth oil passage 134 is consistent with the length direction of the transverse section 130, the first end of the fifth oil passage 134 is respectively connected to the second transverse cavity 132 and the second longitudinal cavity 142, and the second end of the fifth oil passage 134 is connected to the second oil port 120.

[0077] In the above implementation, the second transverse cavity 132 and the second oil port 120 can be connected through the fifth oil passage 134. In addition, since the length direction of the fifth oil passage 134 is consistent with the length direction of the transverse cavity, the fifth oil passage 134 will not interfere with the transverse piston rod 20.

[0078] Combination Figure 2 In this embodiment, the inner wall of the first transverse cavity 131 has a transverse limiting flange 135 , and the transverse limiting flange 135 is located at a portion of the first transverse cavity 131 away from the second transverse cavity 132 .

[0079] In the above implementation, the transverse limiting flange 135 is used to limit the movement stroke of the transverse piston rod 20. By adjusting the position of the transverse limiting flange 135, the movement stroke of the transverse piston rod 20 can be adjusted.

[0080] It is worth noting that, since the transverse section 130 needs to connect the longitudinal section 140 and the lateral section 150 respectively, the length of the transverse section 130 is limited, and it is inconvenient to adjust the movement stroke of the transverse piston rod 20 directly by adjusting the length of the transverse section 130. Therefore, it is necessary to adjust the movement stroke of the transverse piston rod 20 by adjusting the position of the transverse limit flange 135.

[0081] Continue to combine Figure 2 In this embodiment, the inner wall of the second longitudinal cavity 142 has a longitudinal limiting flange 144 , and the longitudinal limiting flange 144 is located at a portion of the second longitudinal cavity 142 away from the first longitudinal cavity 141 .

[0082] In the above implementation, the longitudinal limiting flange 144 is used to limit the movement stroke of the longitudinal piston rod 30 , thereby effectively avoiding interference and collision between the longitudinal piston rod 30 and the transverse piston rod 20 .

[0083] Combination Figure 3 In this embodiment, the inner wall of the second lateral cavity 152 and the inner wall of the third lateral cavity 153 both have a lateral limiting flange 157. The lateral limiting flange 157 of the second lateral cavity 152 is located away from the first lateral cavity 151, and the lateral limiting flange 157 of the third lateral cavity 153 is located away from the fourth lateral cavity 154.

[0084] In the above implementation, the lateral limit flange 157 is used to limit the movement stroke of the first lateral piston rod 40 and the second lateral piston rod 50, effectively avoiding interference and collision between the first lateral piston rod 40 and the second lateral piston rod 50 and the transverse piston rod 20.

[0085] The following is a brief introduction to the working mode of the cylinder device:

[0086] When the first oil port 110 enters the oil, the high-pressure hydraulic oil flows through the first transverse cavity 131, so that the end of the transverse piston rod 20 close to the longitudinal section 140 extends. At the same time, the high-pressure hydraulic oil flows through the first transverse cavity 131, the first oil passage 133, the second oil passage 143, and the first longitudinal cavity 141, so that the longitudinal piston rod 30 is retracted. At the same time, the high-pressure hydraulic oil flows through the first transverse cavity 131, the second lateral cavity 152, and the third lateral cavity 153, so that the first lateral piston rod 40 and the second lateral piston rod 50 extend. As for the low-pressure hydraulic oil, the hydraulic oil in the second transverse cavity 132 flows out of the second oil port 120 through the fifth oil passage 134. At the same time, the hydraulic oil in the second longitudinal cavity 142 flows out of the second oil port 120 through the fifth oil passage 134. At the same time, the hydraulic oil in the first lateral cavity 151 and the fourth lateral cavity 154 flows out of the second oil port 120 through the third oil passage 155 and the fourth oil passage 156, respectively.

[0087] The flow paths of the high-pressure hydraulic oil and the low-pressure hydraulic oil when oil enters the second oil port 120, and the actions of the transverse piston rod 20, the longitudinal piston rod 30, the first lateral piston rod 40, and the second lateral piston rod 50 are opposite to those when oil enters the first oil port 110 as described above, and will not be repeated here.

[0088] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0089] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A cylinder device, characterized in that: It comprises a cylinder body (10), and a transverse piston rod (20), a longitudinal piston rod (30), a first lateral piston rod (40) and a second lateral piston rod (50) which are movably inserted in the cylinder body (10); The cylinder body (10) has a first oil port (110) and a second oil port (120); The moving direction of the transverse piston rod (20) is a first direction, the moving direction of the longitudinal piston rod (30) is a second direction, the moving direction of the first lateral piston rod (40) and the second lateral piston rod (50) is a third direction, and the first direction, the second direction and the third direction all have an included angle; When oil is introduced into one of the first oil port (110) and the second oil port (120), oil is discharged from the other of the first oil port (110) and the second oil port (120), the transverse piston rod (20), the longitudinal piston rod (30), the first lateral piston rod (40) and the second lateral piston rod (50) all move relative to the cylinder body (10).

2. The oil cylinder device according to claim 1, characterized in that: The cylinder body (10) comprises a transverse section (130), a longitudinal section (140) and a lateral section (150); One end of the transverse section (130) is connected to the lateral section (150), and the other end of the transverse section (130) is connected to the longitudinal section (140); The transverse piston rod (20) is movably inserted in the transverse section (130), the longitudinal piston rod (30) is movably inserted in the longitudinal section (140), the first lateral piston rod (40) is movably inserted in one end of the lateral section (150), and the second lateral piston rod (50) is movably inserted in the other end of the lateral section (150).

3. The oil cylinder device according to claim 2, characterized in that: The piston of the transverse piston rod (20) divides the internal space of the transverse section (130) into a first transverse chamber (131) and a second transverse chamber (132); The piston of the longitudinal piston rod (30) divides the internal space of the longitudinal section (140) into a first longitudinal cavity (141) and a second longitudinal cavity (142); The piston of the first lateral piston rod (40) and the piston of the second lateral piston rod (50) divide the internal space of the lateral section (150) into a first lateral chamber (151), a second lateral chamber (152), a third lateral chamber (153) and a fourth lateral chamber (154); The first oil port (110), the first transverse cavity (131), the first longitudinal cavity (141), the second lateral cavity (152), and the third lateral cavity (153) are connected to each other; The second oil port (120), the second transverse cavity (132), the second longitudinal cavity (142), the first lateral cavity (151), and the fourth lateral cavity (154) are interconnected.

4. The oil cylinder device according to claim 3, characterized in that: The transverse section (130) has a first oil passage (133) in it, the length direction of the first oil passage (133) is consistent with the length direction of the transverse section (130), and the first end of the first oil passage (133) is connected to the first transverse cavity (131); The longitudinal section (140) has a second oil passage (143), the length direction of the second oil passage (143) is consistent with the length direction of the longitudinal section (140), the first end of the second oil passage (143) is connected to the second end of the first oil passage (133), and the second end of the second oil passage (143) is connected to the first longitudinal cavity (141).

5. The oil cylinder device according to claim 3, characterized in that: The lateral section (150) has a third oil passage (155) and a fourth oil passage (156), the length direction of the third oil passage (155) and the length direction of the fourth oil passage (156) are both consistent with the length direction of the lateral section (150), the first end of the third oil passage (155) is connected to the first lateral cavity (151), the first end of the fourth oil passage (156) is connected to the fourth lateral cavity (154), and the second end of the third oil passage (155) and the second end of the fourth oil passage (156) are respectively connected to the second oil port (120).

6. The oil cylinder device according to claim 3, characterized in that: The transverse section (130) has a fifth oil passage (134), the length direction of the fifth oil passage (134) is consistent with the length direction of the transverse section (130), the first end of the fifth oil passage (134) is respectively connected to the second transverse cavity (132) and the second longitudinal cavity (142), and the second end of the fifth oil passage (134) is connected to the second oil port (120).

7. The oil cylinder device according to claim 3, characterized in that: The inner wall of the first transverse cavity (131) has a transverse limiting flange (135), and the transverse limiting flange (135) is located at a portion of the first transverse cavity (131) far away from the second transverse cavity (132).

8. The oil cylinder device according to claim 3, characterized in that: The inner wall of the second longitudinal cavity (142) has a longitudinal limiting flange (144), and the longitudinal limiting flange (144) is located at a portion of the second longitudinal cavity (142) far away from the first longitudinal cavity (141).

9. The oil cylinder device according to claim 3, characterized in that: The inner wall of the second lateral cavity (152) and the inner wall of the third lateral cavity (153) both have a lateral limiting flange (157); the lateral limiting flange (157) of the second lateral cavity (152) is located away from the first lateral cavity (151), and the lateral limiting flange (157) of the third lateral cavity (153) is located away from the fourth lateral cavity (154).

10. The oil cylinder device according to claim 2, characterized in that: The transverse piston rod (20) is a double-headed piston rod; One end of the transverse piston rod (20) is located outside one end of the transverse section (130), and the other end of the transverse piston rod (20) is located outside the other end of the transverse section (130).

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