Split type pressure cylinder

Abstract

The split type pressure cylinder comprises an oil cylinder, an air cylinder and a working cylinder, the oil cylinder is provided with a first butt joint assembly and a first leakage-proof assembly, the air cylinder is provided with a second butt joint assembly and a second leakage-proof assembly, the second butt joint assembly is connected with the first butt joint assembly, and the second leakage-proof assembly is connected with the first leakage-proof assembly. The working cylinder is connected with the air cylinder, after the first butt-joint assembly is connected with the second butt-joint assembly, an inner cavity of the oil cylinder is communicated with an inner cavity of the working cylinder, and after the first butt-joint assembly is separated from the second butt-joint assembly, the first leakage-proof assembly and the second leakage-proof assembly block an oil passing opening between the working cylinder and the oil cylinder. According to the utility model, the air cylinder and the oil cylinder are designed in a split manner, so that when one cylinder body is damaged, the damaged cylinder body can be directly replaced; and when the air cylinder is separated from the oil cylinder, the first leakage-proof assembly and the second leakage-proof assembly correspondingly block the oil passing ports of the oil cylinder and the working cylinder, so that oil leakage possibly generated when the air cylinder and the oil cylinder are separated is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of supercharging equipment, in particular to a split supercharging cylinder. Background Art

[0002] Booster cylinders, also known as gas-liquid booster cylinders, are an improved design that combines the advantages of both air and oil cylinders. The hydraulic oil is strictly isolated from the compressed air, and the piston rod inside the cylinder automatically activates upon contact with the workpiece. This results in faster movement and greater stability than pneumatic transmission. The cylinder assembly is simple, and output adjustment is easy. Under the same conditions, it can achieve the high output and low energy consumption advantages of a hydraulic press. However, existing booster cylinders have the oil and air cylinders fixed together. Damage to either cylinder requires replacement of the entire cylinder, significantly increasing operating costs. Furthermore, during disassembly and assembly, the oil inside the cylinder easily leaks, making replacement inconvenient.

[0003] In view of this, it is necessary to design a split-type booster cylinder to solve the above problems. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the utility model provides a split-type booster cylinder, which can realize the separate replacement of a damaged cylinder body and avoid the oil leakage that may be generated during disassembly.

[0006] The first aspect of the present invention provides a split-type booster cylinder, comprising:

[0007] An oil cylinder, wherein the oil cylinder is provided with a first docking assembly and a first leak-proof assembly;

[0008] a cylinder, wherein the cylinder is provided with a second docking assembly and a second leak-proof assembly, the second docking assembly being adapted to be connected to the first docking assembly, and the second leak-proof assembly being adapted to be connected to the first leak-proof assembly;

[0009] A working cylinder, the working cylinder is connected to the air cylinder; wherein,

[0010] After the first docking assembly is connected to the second docking assembly, the first anti-leakage assembly is adapted to open the oil passage of the oil cylinder, and the second anti-leakage assembly is adapted to open the oil passage between the oil cylinder and the working cylinder, so that the internal cavity of the oil cylinder is connected to the internal cavity of the working cylinder;

[0011] After the first docking assembly is separated from the second docking assembly, the first anti-leakage assembly is suitable for blocking the oil passage of the oil cylinder, and the second anti-leakage assembly is suitable for blocking the oil passage between the working cylinder and the oil cylinder to isolate the internal cavity of the oil cylinder from the internal cavity of the working cylinder.

[0012] The beneficial effect of the present utility model is that, by adopting a split structural design for the air cylinder and the oil cylinder, when one of the cylinder bodies is damaged, the damaged cylinder body can be directly replaced, and when the oil cylinder and the air cylinder are docked, the first docking assembly provided on the oil cylinder is connected to the second docking assembly provided on the cylinder, and at this time the internal cavity of the oil cylinder and the working cylinder is connected, and when the air cylinder and the oil cylinder are separated, the first leak-proof assembly and the second leak-proof assembly correspondingly block the oil ports of the oil cylinder and the working cylinder, thereby avoiding oil leakage that may occur when the two are separated.

[0013] Preferably, the first docking assembly includes a docking tube, a side wall of which is provided with a first oil inlet, the first oil inlet being suitable for being connected to the internal cavity of the oil cylinder, and one end of the docking tube being a closed end and the other end being an open end, and the first leak-proof assembly being arranged in the docking tube.

[0014] Further preferably, the first anti-leakage assembly includes a first blocking member and a first elastic member, the first elastic member and the first blocking member are arranged in the butt joint tube, the first elastic member is arranged between the closed end of the butt joint tube and the first blocking member, and the first elastic member has a normal state and a compressed state.

[0015] When the first elastic member is in a normal state, the first blocking member is suitable for blocking the first oil inlet;

[0016] When the first elastic member is in a compressed state, the first elastic member is suitable for driving the first blocking member to open the first oil inlet.

[0017] Preferably, the oil cylinder is further provided with a first air inlet, and the first air inlet is suitable for being communicated with the internal space of the oil cylinder.

[0018] Further preferably, a docking platform is provided on the cylinder, an oil inlet chamber and an oil inlet pipe are provided in the docking platform, the oil inlet chamber is connected to the oil inlet pipe, the oil inlet pipe is connected to the internal cavity of the working cylinder, and the second docking assembly is arranged on the docking platform, the second docking assembly includes a docking spigot, the docking spigot is suitable for docking with the docking pipe, and a second oil inlet is provided on the side wall of the docking spigot, the second oil inlet is suitable for being connected to the first oil inlet.

[0019] Preferably, the second anti-leakage component includes a second elastic member and a second blocking member, the second elastic member and the second blocking member are both arranged in the oil inlet chamber, and the second blocking member is connected to the first blocking member via a push rod, so that when the first oil inlet and the second oil inlet are connected, the push rod presses the second blocking member to make the second blocking member open the oil passage of the docking pipe.

[0020] Further preferably, a first piston rod is provided in the cavity of the cylinder, and a through hole suitable for accommodating the rod portion of the first piston rod is opened at the bottom of the cylinder, so that the rod portion of the first piston rod passes through the through hole and extends into the working cylinder, and the through hole is suitable for being connected to the oil inlet cavity via the oil inlet pipe.

[0021] Preferably, the first piston rod is suitable for separating the internal cavity of the cylinder to form a first chamber and a second chamber, and the cylinder is also provided with a second air inlet and a third air inlet, the second air inlet is suitable for communicating with the first chamber, and the third air inlet is suitable for communicating with the second chamber.

[0022] Further preferably, a second piston rod is provided in the working cylinder, and a through hole suitable for the rod portion of the second piston rod to pass through is opened at the bottom of the working cylinder, and the rod portion of the second piston rod is suitable for passing through the through hole and extending into the outside world, and a fourth air inlet is provided at the bottom of the working cylinder so that air can be inflated into the working cylinder through the fourth air inlet.

[0023] Preferably, a limiting bracket is further provided on the cylinder, and the oil cylinder is fixedly mounted on the limiting bracket via a fixing member.

[0024] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 A three-dimensional diagram of the split-type booster cylinder of the present utility model;

[0028] Figure 2 This is a diagram of the internal structure of the split-type booster cylinder of the present utility model;

[0029] Figure 3 This is an enlarged structural diagram of the split-type booster cylinder A of the present utility model;

[0030] Figure 4 This is a diagram showing the internal structure of the air cylinder and the working cylinder of the split-type booster cylinder of the present utility model;

[0031] Figure 5This is an enlarged structural diagram of the split-type booster cylinder B of the present utility model;

[0032] Figure 6 This is a diagram of the internal structure of the split-type booster cylinder of the present utility model;

[0033] Figure 7 This is an enlarged structural diagram of the split-type booster cylinder C of the present utility model;

[0034] Figure 8 This is a diagram showing the connection structure of the oil cylinder and the air cylinder of the split-type booster cylinder of the present utility model.

[0035] Description of reference numerals:

[0036] 1. Oil cylinder;

[0037] 11. First docking assembly; 111. Docking pipe; 112. First oil inlet;

[0038] 12. First anti-leakage component; 121. First blocking member; 122. First elastic member;

[0039] 13. First air inlet;

[0040] 14. Ejector rod; 15. Limit slot; 16. Screw hole;

[0041] 2. Cylinder;

[0042] 21. Second docking assembly; 211. Docking plug; 212. Second oil inlet;

[0043] 22. Second leak-proof component; 221. Second elastic member; 222. Second blocking member; 223. Connecting rod;

[0044] 23. Docking station; 231. Oil inlet chamber; 232. Oil inlet pipeline;

[0045] 24. First piston rod; 25. First chamber; 26. Second chamber; 27. Second air inlet; 28. Third air inlet; 29. Positioning bracket; 210. Fixing hole;

[0046] 3. Working cylinder;

[0047] 31. Second piston rod; 32. Fourth air inlet;

[0048] 4. Fixing parts. DETAILED DESCRIPTION

[0049] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that illustrate the basic structure of the present invention only in a schematic manner, and therefore only show components relevant to the present invention. In the description of the present invention, it should be understood that, unless otherwise specified, "multiple" means two or more, "bottom" refers to the bottom of the structure shown in the drawings, and "top" refers to the top of the structure shown in the drawings.

[0050] See also Figure 1-Figure 7 A split-type booster cylinder according to a specific embodiment of the present invention includes an oil cylinder 1 and an air cylinder 2. A working cylinder 3 is also connected to the bottom of the cylinder 2. A first docking component 11 and a first leak-proof component 12 are provided on the oil cylinder 1. A second docking component 21 and a second leak-proof component 22 are provided on the cylinder 2. The first docking component 11 can be connected to the second docking component 21. When the first docking component 11 is connected to the second docking component 21, the internal cavity of the oil cylinder 1 is connected to the internal cavity of the working cylinder 3. When the first docking component 11 is separated from the second docking component 21, the first leak-proof component 12 can block the oil port of the oil cylinder 1, and the second leak-proof component 22 can block the oil port between the oil cylinder 1 and the working cylinder 3, thereby limiting the mutual circulation between the internal cavity of the oil cylinder 1 and the internal cavity of the working cylinder 3.

[0051] See also Figures 2 to 3 The top of the oil cylinder 1 is provided with a first air inlet 13, which can be communicated with the internal cavity of the oil cylinder 1. In addition, the first docking assembly 11 provided on the oil cylinder 1 includes a docking tube 111, and the first leak-proof assembly 12 includes a first blocking member 121 and a first elastic member 122. The first elastic member 122 and the first blocking member 121 are both provided in the docking tube 111, and one end of the docking tube 111 is closed and the other end is open. The first elastic member 122 is provided between the closed end of the docking tube 111 and the first blocking member 121, and a first oil inlet 112 is provided on the side wall of the docking tube 111. The oil in the oil cylinder 1 can flow into the docking tube 111 through the first oil inlet 112.

[0052] More specifically, the first oil inlet 112 is blocked or opened by the interaction between the first elastic member 122 and the first blocking member 121. The first elastic member 122 has a normal state and a compressed state. When the first elastic member 122 is in the normal state, it is neither compressed nor stretched. At this time, the first blocking member 121 connected to the first elastic member 122 can completely block the first oil inlet 112, thereby restricting the oil in the oil cylinder 1 from flowing from the first oil inlet 112 into the docking pipe 111. When the first elastic member 122 is in a compressed state, the first elastic member 122 is compressed by an external force. At this time, the first blocking member 121 connected to the first elastic member 122 is subjected to a force toward the closed end of the docking tube 111, thereby causing the first elastic member 122 to contract after being compressed until a misalignment is formed between the first blocking member 121 and the first oil inlet 112, thereby opening the first oil inlet 112 and allowing the oil in the cylinder 1 to flow into the docking tube 111 through the first oil inlet 112.

[0053] See also Figures 4 and 5 A docking platform 23 is provided between the cylinder 2 and the working cylinder 3. An oil inlet chamber 231 and an oil inlet pipe 232 are provided in the docking platform 23. The oil inlet chamber 231 communicates with the oil inlet pipe 232, and the oil inlet pipe 232 also communicates with the internal cavity of the working cylinder 3. A second docking assembly 21 is also provided on the docking platform 23. The second docking assembly 21 includes a docking spigot 211, which can be docked with the docking pipe 111. A second oil inlet port 212 is also provided on the sidewall of the docking spigot 211. When the docking pipe 111 and the docking spigot 211 are docked, the second oil inlet port 212 at least partially overlaps with the first oil inlet port 112 and communicates with each other, thereby allowing oil to flow from the cylinder 1 into the oil inlet chamber 231 and ultimately into the internal cavity of the working cylinder 3 through the oil inlet pipe 232.

[0054] See also Figure 5 and Figure 7The second leakage prevention assembly 22 includes a second elastic member 221, a second blocking member 222 and a connecting rod 223. The second blocking member 221 is connected to the connecting rod 223. The second elastic member 222 is sleeved on the connecting rod 223. The second elastic member 221, the second blocking member 222 and the connecting rod 223 are all arranged in the oil inlet chamber 231, and the second blocking member 222 can be connected to the first blocking member 121 through the push rod 14, that is, the first blocking member 121 and the second blocking member 222 are respectively arranged at the two ends of the push rod 14, so that the push rod 14 can simultaneously apply a force to the first blocking member 121 and the second blocking member 222, thereby compressing the first elastic member 122 and the second elastic member 221 connected to the first blocking member 121 and the second blocking member 222. The first resilient member 122 is compressed by the force exerted on it by the first blocking member 121 driven by the push rod 14, and drives the first blocking member 121 to open the first oil inlet 112. The second resilient member 221 is compressed by the force exerted on it by the second blocking member 222 driven by the push rod 14, thereby causing the second blocking member 222 to open the oil passage 211, thereby allowing the oil in the oil cylinder 1 to flow into the docking pipe 111 through the first oil inlet 112. Since the first oil inlet 112 and the second oil inlet 212 coincide with each other and can be connected, the oil in the oil cylinder 1 can then flow into the docking pipe 211 through the second oil inlet 212, and flow into the oil inlet cavity 231 through the oil hole between the docking pipe 211 and the oil inlet cavity 231, and communicate with the working cylinder 3 through the oil inlet pipe 232 via the cavity 231, thereby realizing the mutual communication between the oil in the oil cylinder 1 and the working cylinder 3.

[0055] See also Figure 4 and Figure 6 A first piston rod 24 is disposed within the interior of the cylinder 2. A through-hole adapted to accommodate the rod portion of the first piston rod 24 is provided at the bottom of the cylinder 2. The rod portion of the first piston rod 24 extends through the through-hole into the working cylinder 3. The through-hole is connected to the oil inlet chamber 231 via an oil inlet pipe 232. Furthermore, the piston connected to the first piston rod 24 divides the interior of the cylinder 2 into a first chamber 25 and a second chamber 26. A second air inlet 27 and a third air inlet 28 are also provided on the cylinder 2. The second air inlet 27 communicates with the first chamber 25, and the third air inlet 28 communicates with the second chamber 26.

[0056] Furthermore, a second piston rod 31 is disposed within the working cylinder 3. A through-hole is defined at the bottom of the working cylinder 3, through which the rod portion of the second piston rod 31 passes. The rod portion of the second piston rod 31 is adapted to pass through the through-hole and into the external environment. Furthermore, a fourth air inlet 32 is provided at the bottom of the working cylinder 3, communicating with the internal cavity of the working cylinder 3.

[0057] See also Figure 7 and Figure 8 , limiting slots 15 are provided on the outer walls of both sides of the oil cylinder 1, and screw holes 16 are provided on the outer wall of one side of the oil cylinder 1. A limiting bracket 29 is installed on the docking platform 23, and a fixing hole 210 is provided on one side wall of the limiting bracket 29. The oil cylinder 1 can be connected to the docking platform 23 through the cooperation of the limiting bracket 29 and the limiting slots 15 to realize a fixed connection between the oil cylinder 1 and the cylinder 2.

[0058] After the oil cylinder 1 and the air cylinder 2 are fixedly connected, the docking spigot 211 is inserted into the docking tube 111. When the docking spigot 211 and the docking tube 111 are docked, the push rod 14 will press upward against the first blocking member 121, causing the first oil inlet 112 and the second oil inlet 212 to partially overlap and gradually flow oil. As the first blocking member 121 continues to press against the first elastic member 122 until the first elastic member 122 reaches its maximum compression, the first oil inlet 112 and the second oil inlet 212 completely overlap. At the same time, the push rod 14 will press downward against the second blocking member 222, causing the second blocking member 222 to open the oil flow port of the docking spigot 211, thereby achieving communication between the docking spigot 211 and the oil cylinder 1 and oil flow, thereby connecting the oil cylinder 1 and the working cylinder 3. A sealing ring must be provided between the docking tube 111 and the docking spigot 211 to prevent oil leakage when flowing between the two.

[0059] When the oil cylinder 1 needs to be disassembled, the fixing member 4 is first unscrewed, and then the docking pipe 211 is pulled out of the docking pipe 111. The first elastic member 122 rebounds due to the loss of the pressure exerted by the first blocking member 121, and at the same time presses against the first blocking member 121, so that the first blocking member 121 moves toward the first oil inlet 112 until it completely blocks the first oil inlet 112. The second elastic member 221 simultaneously rebounds and pushes the second blocking member 222 to move until the second blocking member 222 blocks the oil passage between the docking pipe 211 and the oil inlet chamber 231, thereby preventing the original oil in the oil cylinder 1 and the working cylinder 3 from leaking out during disassembly.

[0060] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this utility model. The technical scope of this utility model is not limited to the content of the specification, but must be determined by the scope of the claims.

Claims

1. A split-type booster cylinder, characterized in that: include: An oil cylinder (1), wherein the oil cylinder (1) is provided with a first docking assembly (11) and a first leak-proof assembly (12); A cylinder (2), wherein the cylinder (2) is provided with a second docking component (21) and a second leak-proof component (22), wherein the second docking component (21) is adapted to be connected to the first docking component (11), and the second leak-proof component (22) is adapted to be connected to the first leak-proof component (12); A working cylinder (3), the working cylinder (3) is connected to the cylinder (2); wherein, The oil cylinder (1) and the working cylinder (3) are adapted to be connected after the first docking assembly (11) and the second docking assembly (21) are docked; The first anti-leakage component (12) and the second anti-leakage component (22) are suitable for respectively blocking the oil ports of the oil cylinder (1) and the working cylinder (3) after the first docking component (11) and the second docking component (21) are separated.

2. The split-type booster cylinder according to claim 1, characterized in that: The first docking assembly (11) comprises a docking tube (111), a side wall of the docking tube (111) is provided with a first oil inlet (112), the first oil inlet (112) is adapted to be connected to the internal cavity of the oil cylinder (1), one end of the docking tube (111) is a closed end, and the other end is an open end, and the first leak-proof assembly (12) is arranged in the docking tube (111).

3. The split-type booster cylinder according to claim 2, characterized in that: The first anti-leakage component (12) comprises a first blocking member (121) and a first elastic member (122), wherein the first elastic member (122) and the first blocking member (121) are arranged in the butt joint tube (111), the first elastic member (122) is arranged between the closed end of the butt joint tube (111) and the first blocking member (121), and the first elastic member (122) has a normal state and a compressed state. When the first elastic member (122) is in a normal state, the first blocking member (121) is suitable for blocking the first oil inlet (112); When the first elastic member (122) is in a compressed state, the first elastic member (122) is suitable for driving the first blocking member (121) to open the first oil inlet (112).

4. The split-type booster cylinder according to claim 3, characterized in that: The oil cylinder (1) is also provided with a first air inlet (13), and the first air inlet (13) is suitable for being connected to the internal space of the oil cylinder (1).

5. The split-type booster cylinder according to claim 3, characterized in that: A docking platform (23) is further provided between the cylinder (2) and the working cylinder (3), and an oil inlet cavity (231) and an oil inlet pipe (232) are provided in the docking platform (23), the oil inlet cavity (231) is communicated with the oil inlet pipe (232), and the oil inlet pipe (232) is communicated with the internal cavity of the working cylinder (3), and the second docking component (21) is provided on the docking platform (23), the second docking component (21) comprises a docking spigot (211), the docking spigot (211) is suitable for docking with the docking pipe (111), and a second oil inlet (212) is provided on a side wall of the docking spigot (211), and the second oil inlet (212) is suitable for communicating with the first oil inlet (112).

6. The split-type booster cylinder according to claim 5, characterized in that: The second anti-leakage component (22) comprises a second elastic member (221) and a second blocking member (222), the second elastic member (221) and the second blocking member (222) are both arranged in the oil inlet cavity (231), and the second blocking member (222) is connected to the first blocking member (121) via a push rod (14), so that when the first oil inlet (112) and the second oil inlet (212) are connected, the push rod (14) presses the second blocking member (222) so that the second blocking member (222) opens the oil passage of the docking pipe (211).

7. The split-type booster cylinder according to claim 5, characterized in that: A first piston rod (24) is provided in the internal cavity of the cylinder (2), and a through hole suitable for accommodating the rod portion of the first piston rod (24) is provided at the bottom of the cylinder (2), so that the rod portion of the first piston rod (24) passes through the through hole and extends into the working cylinder (3), and the through hole is suitable for being connected to the oil inlet cavity (231) via the oil inlet pipe (232).

8. The split-type booster cylinder according to claim 7, characterized in that: The first piston rod (24) is suitable for separating the internal cavity of the cylinder (2) to form a first chamber (25) and a second chamber (26); the cylinder (2) is also provided with a second air inlet (27) and a third air inlet (28); the second air inlet (27) is suitable for communicating with the first chamber (25), and the third air inlet (28) is suitable for communicating with the second chamber (26).

9. The split-type booster cylinder according to claim 7, characterized in that: A second piston rod (31) is also provided in the working cylinder (3), and a through hole is provided at the bottom of the working cylinder (3) for the rod portion of the second piston rod (31) to pass through. The rod portion of the second piston rod (31) is suitable for passing through the through hole and extending into the outside world, and a fourth air inlet (32) is provided at the bottom of the working cylinder (3) so that air can be inflated into the working cylinder (3) through the fourth air inlet (32).

10. The split-type booster cylinder according to any one of claims 1 to 9, characterized in that: The air cylinder (2) is also provided with a limiting insert frame (29), and the oil cylinder (1) is fixedly mounted on the limiting insert frame (29) via a fixing member (4).

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