A new type of double-rod cylinder

Abstract

The present invention relates to the technical field of oil cylinders, and in particular to a novel double-rod oil cylinder, comprising an oil cylinder, wherein the oil cylinder comprises a cylinder body, a piston is slidably connected in the cylinder body, the piston is sleeved on the rod body, both ends of the rod body respectively extend out of the cylinder body in a direction away from the cylinder body, a heat dissipation mechanism is sleeved on the cylinder body, the heat dissipation mechanism comprises a sleeve sleeved on the cylinder body, both ends of the sleeve are connected to the cylinder body through connecting pieces, the inner wall of the sleeve and the outer wall of the cylinder body and the two connecting pieces together constitute a heat dissipation cavity, one end of the sleeve is provided with a liquid inlet pipe, the other end of the sleeve is provided with a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are both connected to the heat dissipation cavity.

Description

Technical Field

[0001] The invention relates to the technical field of oil cylinders, and in particular to a novel double-rod oil cylinder. Background Art

[0002] The double-rod cylinder is a special hydraulic actuator. Unlike the traditional single-rod cylinder, it has two piston rods, which extend from both ends of the cylinder. The main features and advantages of the double-rod cylinder include:

[0003] Double Acting: Since the double rod cylinder has two piston rods, it can apply equal force in both directions, which makes it ideal for applications that require bidirectional force.

[0004] Improved efficiency: The dual-rod design allows the cylinder to provide more efficient force output within the same stroke because it can drive the working parts in two directions at the same time, which can improve overall working efficiency in some applications.

[0005] Enhanced stability: Dual-rod cylinders provide better balance and stability, especially when precise positioning or carrying large loads are required.

[0006] Greater flexibility: With the ability to perform push and pull operations simultaneously, dual-rod cylinders provide greater operational flexibility to accommodate a wider variety of work requirements.

[0007] Higher Load Capacity: The dual-rod design helps distribute the load more evenly, providing a higher load capacity than a single-rod cylinder under the same conditions.

[0008] Double-rod cylinders are widely used in various mechanical equipment, such as construction machinery (excavators, loaders, cranes, etc.), metallurgical equipment, mechanical manufacturing equipment (machine tools, mold processing equipment, etc.) and other hydraulic transmission systems that require high precision, high efficiency and high stability. This type of cylinder is particularly suitable for scenes that require bidirectional equal force work.

[0009] When the existing double-rod oil cylinder is in use, the piston in the oil cylinder moves continuously, which easily generates heat due to friction. When the piston moves quickly, the heat is more obvious, and long-term heat generation is likely to affect the service life of the oil cylinder.

[0010] Therefore, a novel double-rod oil cylinder is needed to solve the above problems. Summary of the invention

[0011] In order to solve the above problem, that is, to solve the problem that the piston in the oil cylinder is prone to heat up when moving quickly, the present invention provides a novel double-rod oil cylinder.

[0012] A novel double-rod oil cylinder comprises an oil cylinder, which comprises a cylinder body, a piston is slidably connected in the cylinder body, the piston is sleeved on the rod body, both ends of the rod body respectively extend out of the cylinder body in a direction away from the cylinder body, a heat dissipation mechanism is sleeved on the cylinder body, the heat dissipation mechanism comprises a sleeve sleeved on the cylinder body, both ends of the sleeve are connected to the cylinder body through connecting pieces, the inner wall of the sleeve and the outer wall of the cylinder body and the two connecting pieces together constitute a heat dissipation cavity, one end of the sleeve is provided with a liquid inlet pipe, and the other end of the sleeve is provided with a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are both connected to the heat dissipation cavity.

[0013] Specifically, when in use, hydraulic oil is supplied into and extracted from the cylinder body, so that the piston moves in the cylinder body, and the movement of the piston drives the rod body to move, thereby realizing the basic movement of the oil cylinder; at the same time, when the piston moves, coolant is supplied to the heat dissipation cavity through the liquid inlet pipe, and the coolant enters the heat dissipation cavity to cool the cylinder body. After that, the coolant is discharged through the liquid outlet pipe, thereby taking out the heat generated during the friction between the piston and the cylinder body, reducing the heat generated by the friction between the piston and the cylinder body, and improving the service life and stability of the oil cylinder.

[0014] By setting up the heat dissipation mechanism, when the piston moves in the cylinder body, the coolant can be supplied to the heat dissipation cavity through the liquid inlet pipe, so as to take out the heat generated by the friction between the piston and the cylinder body, and the coolant in the heat dissipation cavity can be discharged from the heat dissipation cavity through the liquid outlet pipe, so that the coolant in the heat dissipation cavity continuously flows, thereby improving the heat dissipation effect, thereby improving the service life and use stability of the oil cylinder.

[0015] Preferably, the oil cylinder further comprises sealing covers arranged at both ends of the cylinder body, the sealing covers are detachably connected to the ends of the cylinder body, and the rod body passes through the sealing covers.

[0016] Specifically, when the oil cylinder needs to be repaired during use, the cover is removed from the cylinder body, and then the rod body and the piston are taken out of the cylinder body through the end opening of the cylinder body.

[0017] By setting the sealing cover, the piston can be sealed in the cylinder body, and when the oil cylinder needs to be repaired and maintained, the sealing cover can be removed to repair and maintain the inside of the cylinder body.

[0018] Furthermore, the detachable connection between the sealing cover and the cylinder body includes but is not limited to threaded connection or snap-on connection.

[0019] Preferably, the rod body is detachably connected to the piston.

[0020] Furthermore, the detachable connection between the rod body and the piston includes but is not limited to a snap connection and the like.

[0021] The detachable connection between the rod body and the piston facilitates the disassembly and installation of the rod body and the piston, and facilitates the maintenance of the oil cylinder. In addition, the split design of the rod body and the piston allows the force on the rod body to be shared by the piston, thereby increasing the service life of the rod body.

[0022] Preferably, the heat dissipation mechanism also includes an auxiliary part arranged in the sleeve, the auxiliary part includes a cavity opened in the sleeve, a movable ring is slidably connected in the cavity, the movable ring is slidably connected to the inner wall of the cavity, springs are respectively connected between the two sides of the movable ring and the two end side walls of the cavity, the movable ring is magnetically attracted to the piston, air outlet holes are opened on the two end side walls of the cavity, a one-way exhaust valve is arranged in the air outlet holes, air inlet holes are opened on the two end side walls of the cavity, a one-way air inlet valve is arranged in the air inlet holes.

[0023] Specifically, during use, when the piston slides in the cylinder, the piston drives the moving ring to slide in the cavity through the magnetic force, and the moving ring discharges the gas in the cavity through the one-way exhaust valve. At the same time, external gas enters the cavity through the one-way intake valve, and the gas flow in the cavity brings out part of the heat.

[0024] Through the setting of the auxiliary parts, when the piston moves, the piston drives the moving ring to move through magnetic force, so that the moving ring discharges the gas in the cavity through the air outlet, taking out some heat, and when the moving ring moves, external gas can enter the cavity through the air inlet, which is convenient for the subsequent removal of heat.

[0025] Furthermore, the one-way intake valve and the one-way exhaust valve are prior art and will not be described in detail.

[0026] Preferably, the air outlet is connected to a processing piece, and the processing piece includes a connecting tube fixedly connected to the air outlet, a processing ring is provided at the end of the connecting tube, a processing chamber is opened in the processing ring, the connecting tube is connected to the processing chamber, the processing ring is gap-mounted on the rod body, the processing ring is located at the connection between the rod body and the sealing cover, and six air holes are evenly opened on the annular surface of the processing chamber along the circumferential direction, and the air hole openings face the circumferential surface of the rod body.

[0027] Specifically, during use, when the gas is discharged from the air outlet, the gas enters the connecting pipe through the one-way exhaust valve, and then the gas enters the processing chamber through the connecting pipe, and then the gas enters the air hole through the processing chamber, and then the gas is blown onto the rod body through the air hole to blow off the dust and other impurities on the rod body.

[0028] Through the setting of the processing part, the auxiliary part can blow the blown gas through the processing ring onto the surface of the rod body when assisting in heat dissipation, so that dust and other impurities on the rod body fall off, avoiding the accumulation of impurities at the connection between the rod body and the cover during long-term use, affecting the tightness of the connection between the rod body and the cover, and improving the service life of the cylinder.

[0029] Preferably, a thread is provided at one end of the connecting pipe away from the sleeve, a threaded sleeve is rotatably connected to the processing ring, the threaded sleeve is communicated with the processing chamber, and the connecting pipe is threadably connected to the threaded sleeve.

[0030] Specifically, when in use, the threaded sleeve is screwed onto the connecting pipe.

[0031] The threaded sleeve is provided so that the connecting pipe can be connected to the processing ring, and the disassembly and installation of the processing ring are convenient.

[0032] Preferably, a side wall of the processing chamber away from the sleeve is provided with an inspection port, and a closing cover is detachably connected to the inspection port.

[0033] The provision of the inspection port facilitates processing inside the processing chamber, and the provision of the closing cover facilitates opening and closing of the inspection port.

[0034] Furthermore, the detachable connection between the inspection port and the closure cover includes but is not limited to a snap connection, a threaded connection, and the like.

[0035] Preferably, the connecting member comprises a U-shaped clamp, the clamp is sleeved on the cylinder body, two ends of the clamp are connected by bolts, and the annular section of the clamp is fixedly connected to the sleeve.

[0036] Specifically, when in use, the sleeve and the clamp are sleeved on the cylinder body, and then the two ends of the clamp are connected by bolts.

[0037] The arrangement of the connecting piece facilitates the installation of the sleeve on the cylinder body.

[0038] The beneficial effects of the present invention are:

[0039] 1. Through the setting of the heat dissipation mechanism, when the piston moves in the cylinder, the coolant can be supplied to the heat dissipation cavity through the liquid inlet pipe to take out the heat generated by the friction between the piston and the cylinder body, and the coolant in the heat dissipation cavity can be discharged from the heat dissipation cavity through the liquid outlet pipe, so that the coolant in the heat dissipation cavity continuously flows, improving the heat dissipation effect, thereby improving the service life and use stability of the oil cylinder.

[0040] 2. The piston can be sealed in the cylinder by setting the cover, and when the oil cylinder needs to be repaired and maintained, the cover can be removed to repair and maintain the inside of the cylinder. The detachable connection between the rod body and the piston facilitates the disassembly and installation of the rod body and the piston, and facilitates the maintenance of the oil cylinder. The split design of the rod body and the piston allows the force on the rod body to be shared by the piston, which increases the service life of the rod body.

[0041] 3. Through the setting of auxiliary parts, when the piston moves, the piston drives the moving ring to move through magnetic force, so that the moving ring discharges the gas in the cavity through the air outlet, taking out part of the heat, and when the moving ring moves, the external gas can enter the cavity through the air inlet, which is convenient for the subsequent removal of heat.

[0042] 4. Through the setting of the processing part, the auxiliary part can blow the blown gas through the processing ring onto the surface of the rod body when assisting in heat dissipation, so that dust and other impurities on the rod body fall off, avoiding the accumulation of impurities at the connection between the rod body and the cover during long-term use, affecting the tightness of the connection between the rod body and the cover, and improving the service life of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0044] Figure 2 For the present invention Figure 1 The main view of

[0045] Figure 3 For the present invention Figure 2 Isometric section view at AA;

[0046] Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0047] Figure 5 For the present invention Figure 4 The main view of

[0048] Figure 6 For the present invention Figure 5 Isometric section view at the middle BB;

[0049] Figure 7 For the present invention Figure 6 A partial enlarged view of point C in the middle;

[0050] Figure 8 It is a left side view of the present invention;

[0051] Fig. 9 For the present invention Figure 8 Isometric section view at mid DD;

[0052] Fig.10 For the present invention Fig. 9 A partial enlarged view of point E in the middle.

[0053] In the figure:

[0054] 1. Oil cylinder; 11. Cylinder body; 12. Piston; 13. Rod body; 14. Cover;

[0055] 2. Heat dissipation mechanism; 21. Sleeve; 22. Connecting piece; 221. Clamp; 23. Heat dissipation cavity; 24. Liquid inlet pipe; 25. Liquid outlet pipe; 26. Auxiliary piece; 261. Cavity; 262. Moving ring; 263. Spring; 264. Air outlet hole; 265. Air inlet hole; 266. One-way air inlet valve; 27. Processing piece; 271. Connecting pipe; 272. Processing ring; 273. Processing cavity; 274. Air hole; 275. Threaded sleeve; 276. Inspection port; 277. Closing cover. DETAILED DESCRIPTION

[0056] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0057] like Figure 1 , 3 As shown in Figures 4, 5 and 9, an embodiment of the present invention discloses a novel double-rod oil cylinder, comprising an oil cylinder 1, wherein the oil cylinder 1 comprises a cylinder body 11, wherein a piston 12 is slidably connected in the cylinder body 11, wherein the piston 12 is sleeved on a rod body 13, wherein both ends of the rod body 13 respectively extend out of the cylinder body 11 in a direction away from the cylinder body 11, wherein a heat dissipation mechanism 2 is sleeved on the cylinder body 11, wherein the heat dissipation mechanism 2 comprises a sleeve 21 sleeved on the cylinder body 11, wherein both ends of the sleeve 21 are connected to the cylinder body 11 through connecting members 22, wherein an inner wall of the sleeve 21, an outer wall of the cylinder body 11 and two connecting members 22 together constitute a heat dissipation cavity 23, wherein a liquid inlet pipe 24 is provided at one end of the sleeve 21, and a liquid outlet pipe 25 is provided at the other end of the sleeve 21, wherein both the liquid inlet pipe 24 and the liquid outlet pipe 25 are connected to the heat dissipation cavity 23.

[0058] Specifically, when in use, the piston 12 moves in the cylinder 11 by supplying and extracting hydraulic oil into the cylinder 11, and the movement of the piston 12 drives the rod 13 to move, thereby realizing the basic movement of the oil cylinder; at the same time, when the piston moves, the coolant is supplied to the heat dissipation cavity 23 through the liquid inlet pipe 24, and the coolant enters the heat dissipation cavity 23 to cool the cylinder 11. Then the coolant is discharged through the liquid outlet pipe 25, thereby taking out the heat generated during the friction between the piston 12 and the cylinder 11, reducing the heat generated by the friction between the piston 12 and the cylinder 11, and improving the service life and stability of the oil cylinder.

[0059] By setting the heat dissipation mechanism 2, when the piston 12 moves in the cylinder body 11, the coolant can be supplied to the heat dissipation cavity 23 through the liquid inlet pipe 24, so as to take out the heat generated by the friction between the piston 12 and the cylinder body 11, and the coolant in the heat dissipation cavity 23 can be discharged from the heat dissipation cavity through the liquid outlet pipe 25, so that the coolant in the heat dissipation cavity 23 continuously flows, thereby improving the heat dissipation effect, thereby improving the service life and stability of the oil cylinder.

[0060] like Figure 2 , 4 As shown, the oil cylinder 1 further includes covers 14 disposed at both ends of the cylinder body 11 , the covers 14 are detachably connected to the ends of the cylinder body 11 , and the rod body 13 passes through the covers 14 .

[0061] Specifically, when the oil cylinder 1 needs to be repaired during use, the cover 14 is removed from the cylinder body 11 , and then the rod body 13 and the piston 12 are taken out of the cylinder body 11 through the end opening of the cylinder body 11 .

[0062] By disposing the cover 14 , the piston 12 can be sealed in the cylinder body 11 , and when the oil cylinder 1 needs to be repaired and maintained, the cover 14 can be removed to repair and maintain the inside of the cylinder body 11 .

[0063] Furthermore, the detachable connection between the sealing cover 14 and the cylinder body 11 includes but is not limited to threaded connection or snap-on connection.

[0064] like Figure 3 As shown, the rod body 13 is detachably connected to the piston 12 .

[0065] Furthermore, the detachable connection between the rod body 13 and the piston 12 includes but is not limited to a snap connection and the like.

[0066] The detachable connection between the rod body 13 and the piston 12 facilitates the disassembly and installation of the rod body 13 and the piston 12, and facilitates the maintenance of the oil cylinder 1. In addition, the split design of the rod body 13 and the piston 12 allows the force exerted on the rod body 13 to be shared by the piston 12, thereby increasing the service life of the rod body 13.

[0067] like Figure 6 , 7 As shown in Figures 9 and 10, the heat dissipation mechanism 2 also includes an auxiliary part 26 arranged in the sleeve 21, and the auxiliary part 26 includes a cavity 261 opened in the sleeve 21, and a movable ring 262 is slidably connected in the cavity 261, and the movable ring 262 is slidably connected to the inner wall of the cavity 261, and springs 263 are respectively connected between the two sides of the movable ring 262 and the two end side walls of the cavity 261, and the movable ring 262 is magnetically attracted to the piston 12, and the two end side walls of the cavity 261 are provided with air outlet holes 264, and the air outlet holes 264 are provided with one-way exhaust valves, and the two end side walls of the cavity 261 are provided with air inlet holes 265, and the air inlet holes 265 are provided with one-way air inlet valves 266.

[0068] Specifically, during use, when the piston 12 slides in the cylinder body 11, the piston 12 drives the movable ring 262 to slide in the cavity 261 through the magnetic force, and the movable ring 262 discharges the gas in the cavity 261 through the one-way exhaust valve. At the same time, the external gas enters the cavity 261 through the one-way intake valve 266, and the gas flow in the cavity 261 brings out part of the heat.

[0069] By setting the auxiliary part 26, when the piston 12 moves, the piston 12 drives the moving ring 262 to move through the magnetic force, so that the moving ring 262 discharges the gas in the cavity 261 through the air outlet 264, taking out some heat, and when the moving ring 262 moves, the external gas can enter the cavity 261 through the air inlet 265, which is convenient for the subsequent removal of heat.

[0070] Furthermore, the one-way intake valve 266 and the one-way exhaust valve are prior art and will not be described in detail.

[0071] like Figure 5 , 6 As shown in Figure 10, the air outlet 264 is connected to a processing member 27, and the processing member 27 includes a connecting tube 271 fixedly connected to the air outlet 264. A processing ring 272 is provided at the end of the connecting tube 271. A processing chamber 273 is opened in the processing ring 272. The connecting tube 271 is connected to the processing chamber 273. The processing ring 272 is sleeved on the rod body 13 with a gap. The processing ring 272 is located at the connection between the rod body 13 and the cover 14. Six air holes 274 are evenly opened on the inner ring surface of the processing chamber 273 along the circumferential direction, and the openings of the air holes 274 face the circumferential surface of the rod body 13.

[0072] Specifically, during use, when the gas is discharged from the air outlet 264, the gas enters the connecting pipe 271 through the one-way exhaust valve, and then the gas enters the processing chamber 273 through the connecting pipe 271, and then the gas enters the air hole 274 through the processing chamber 273, and then the gas is blown onto the rod body 13 through the air hole 274 to blow off impurities such as dust on the rod body 13.

[0073] By setting the processing part 27, the auxiliary part 26 can blow the blown gas through the processing ring 272 onto the surface of the rod body 13 when assisting in heat dissipation, so that dust and other impurities on the rod body 13 fall off, avoiding the accumulation of impurities at the connection between the rod body 13 and the cover 14 during long-term use, affecting the tightness of the connection between the rod body 13 and the cover 14, and improving the service life of the cylinder.

[0074] like Fig.10 As shown, the connecting pipe 271 is provided with a thread at one end away from the sleeve 21 , a threaded sleeve 275 is rotatably connected to the processing ring 272 , the threaded sleeve 275 is communicated with the processing chamber 273 , and the connecting pipe 271 is threadedly connected to the threaded sleeve 275 .

[0075] Specifically, when in use, the threaded sleeve 275 is screwed onto the connecting pipe 271 .

[0076] By providing the threaded sleeve 275 , the connecting pipe 271 can be connected to the processing ring 272 , and the disassembly and installation of the processing ring 272 are convenient.

[0077] like Fig.10 As shown, a side wall of the processing chamber 273 away from the sleeve 21 is provided with an inspection port 276 , and a closing cover 277 is detachably connected to the inspection port 276 .

[0078] The provision of the inspection port 276 facilitates processing of the interior of the processing chamber 273 , and the provision of the closing cover 277 facilitates opening and closing of the inspection port 276 .

[0079] Furthermore, the detachable connection between the inspection port 276 and the closure cover 277 includes but is not limited to a snap connection, a threaded connection, and the like.

[0080] like Figure 5 , 6 As shown, the connecting member 22 includes a U-shaped clamp 221 , which is sleeved on the cylinder body 11 , and the two ends of the clamp 221 are connected by bolts, and the annular segment of the clamp 221 is fixedly connected to the sleeve 21 .

[0081] Specifically, when in use, the sleeve 21 and the clamp 221 are sleeved on the cylinder body 11, and then the two ends of the clamp 221 are connected by bolts.

[0082] The connection piece 22 is provided to facilitate installation of the sleeve 21 on the cylinder body 11 .

[0083] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0084] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0086] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A new type of double-rod oil cylinder, characterized in that: The invention comprises an oil cylinder (1), wherein the oil cylinder (1) comprises a cylinder body (11), a piston (12) is slidably connected to the cylinder body (11), the piston (12) is sleeved on a rod body (13), two ends of the rod body (13) respectively extend out of the cylinder body (11) in a direction away from the cylinder body (11), a heat dissipation mechanism (2) is sleeved on the cylinder body (11), the heat dissipation mechanism (2) comprises a sleeve (21) sleeved on the cylinder body (11), and the Both ends of the sleeve (21) are connected to the cylinder body (11) via connecting pieces (22); the inner wall of the sleeve (21), the outer wall of the cylinder body (11) and the two connecting pieces (22) together form a heat dissipation cavity (23); a liquid inlet pipe (24) is provided at one end of the sleeve (21); a liquid outlet pipe (25) is provided at the other end of the sleeve (21); the liquid inlet pipe (24) and the liquid outlet pipe (25) are both in communication with the heat dissipation cavity (23); The oil cylinder (1) further comprises covers (14) arranged at both ends of the cylinder body (11), the covers (14) being detachably connected to the ends of the cylinder body (11), and the rod body (13) passing through the covers (14); The rod body (13) is detachably connected to the piston (12); The heat dissipation mechanism (2) further comprises an auxiliary component (26) arranged in the sleeve (21), the auxiliary component (26) comprising a cavity (261) opened in the sleeve (21), a movable ring (262) being slidably connected in the cavity (261), the movable ring (262) being slidably connected to the inner wall of the cavity (261), springs (263) being respectively connected between the two sides of the movable ring (262) and the two end side walls of the cavity (261), the movable ring (262) and the piston (12) being magnetically attracted to each other, air outlet holes (264) being opened at the two end side walls of the cavity (261), a one-way exhaust valve being arranged in the air outlet holes (264), and air inlet holes (265) being opened at the two end side walls of the cavity (261), a one-way air inlet valve (266) being arranged in the air inlet holes (265).

2. A novel double-rod oil cylinder according to claim 1, characterized in that: The air outlet (264) is connected to a processing component (27), the processing component (27) comprising a connecting tube (271) fixedly connected to the air outlet (264), a processing ring (272) being provided at the end of the connecting tube (271), a processing chamber (273) being provided in the processing ring (272), the connecting tube (271) being connected to the processing chamber (273), the processing ring (272) being sleeved on the rod body (13) with a gap, the processing ring (272) being located at the connection between the rod body (13) and the sealing cover (14), the inner ring surface of the processing chamber (273) being evenly provided with six air holes (274) along the circumferential direction, the openings of the air holes (274) being directed toward the circumferential surface of the rod body (13).

3. A novel double-rod oil cylinder according to claim 2, characterized in that: A thread is provided at one end of the connecting pipe (271) away from the sleeve (21); a threaded sleeve (275) is rotatably connected to the processing ring (272); the threaded sleeve (275) is in communication with the processing chamber (273); and the connecting pipe (271) is threadably connected to the threaded sleeve (275).

4. A novel double-rod oil cylinder according to claim 3, characterized in that: A side wall of the processing chamber (273) away from the sleeve (21) is provided with an inspection opening (276), and a closing cover (277) is detachably connected to the inspection opening (276).

5. A novel double-rod oil cylinder according to claim 4, characterized in that: The connecting member (22) comprises a U-shaped clamp (221), the clamp (221) being sleeved on the cylinder body (11), the two ends of the clamp (221) being connected by bolts, and the annular section of the clamp (221) being fixedly connected to the sleeve (21).

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