Horizontal oil cylinder and operation machine supporting leg device

Abstract

The horizontal oil cylinder comprises a first cylinder body and a first movable part, the first movable part is arranged on the first cylinder body in a sliding mode so that the first movable part can stretch out or retract relative to the first cylinder body, and the first movable part further divides an inner cavity of the first cylinder body into a first cavity and a second cavity. The first movable part is provided with a first channel and a second channel which are relatively independent. According to the horizontal oil cylinder and the operation machine supporting leg device, the first channel and the second channel which are relatively independent are formed in the first movable part, the oil way used for conveying the hydraulic oil is formed, the length of the oil way can be changed through telescopic movement of the first movable part, and the hydraulic oil can be communicated and conveyed through a conveying pipeline with the short length; the problems of knotting and disordered tracks caused by the fact that the conveying pipeline is too long in the telescopic action process of the first movable part are solved; meanwhile, friction with structural parts is avoided, and therefore abrasion, loosening faults, oil leakage and other faults of pipelines and connectors are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to a horizontal oil cylinder and an operating machinery outrigger device. Background Art

[0002] A truck crane is a crane installed on an ordinary car chassis or a special car chassis. It is generally equipped with two control cabs for getting on and off the car. The outriggers must be extended to maintain stability during operation, and the range of lifting weights is very large.

[0003] Current truck cranes, such as Figure 1-3 As shown, the main components of the outrigger are: a fixed outrigger box (frame) 3, a movable outrigger box 4, a horizontal oil cylinder 5, and a vertical oil cylinder 6. The cylinder barrel 51 of the horizontal oil cylinder 5 is fixed on the fixed outrigger box, and the rod head of the piston rod 52 is fixed on the movable outrigger box 4. The first mounting seat 53 on the horizontal oil cylinder 5 is provided with three circulation channels, and the second mounting seat 54 is provided with two connecting channels. One of the circulation channels on the first mounting seat 53 is connected to the rodless cavity, and the hydraulic oil can enter the rodless cavity from the circulation channel. The other two circulation channels on the first mounting seat 53 are connected to the two circulation channels on the second mounting seat 54 through the first oil pipe 55 and the second oil pipe 56 respectively. One of the two circulation channels on the second mounting seat 54 is connected to the rod cavity for hydraulic oil to enter the rod cavity. The two circulation channels on the second mounting seat 54 are respectively connected to the rod cavity and the rodless cavity of the vertical oil cylinder through hydraulic hoses. When the oil cylinder performs the extension / retraction action, the cylinder barrel 51 is fixed and the piston rod 52 moves, thereby driving the movable leg box 4 to perform the corresponding extension and retraction actions. The vertical oil cylinder 6 is fixed on the movable leg box 4 and is fixed relative to the piston rod 52 of the horizontal oil cylinder 5. The hydraulic oil enters the rodless chamber of the horizontal oil cylinder 5. After the horizontal oil cylinder 5 performs the extension action to make the movable leg box 4 extend to the right position, the hydraulic oil flows from the flow channel of the first mounting seat 53 through the first oil pipe 55, the flow channel of the second mounting seat 54, and the hydraulic hose to the rodless chamber of the vertical oil cylinder, so that the piston rod of the vertical oil cylinder 6 performs the extension action.

[0004] The horizontal cylinder in the outrigger has a large stroke. The maximum stroke of the horizontal cylinder in the outrigger on the market is more than 2 meters, so a long hydraulic hose needs to be installed in the movable outrigger box. However, the long hydraulic hose will cause problems such as knotting and chaotic trajectory inside the outrigger. At the same time, the outrigger of the truck crane will often extend or retract. When the outrigger is retracted, the hydraulic hose in the movable outrigger and the inside of the movable outrigger are in a friction motion state. Long-term friction will cause the hydraulic hose to be easily damaged, and the friction process will also easily cause faults such as loose joints. When the hose is damaged or the hydraulic joint is loose inside the outrigger, the entire movable outrigger needs to be disassembled for repair, which is time-consuming and labor-intensive. Utility Model Content

[0005] The utility model aims to provide a horizontal oil cylinder and an operating machine outrigger device to solve the problems of easy knotting or chaotic track of hydraulic hoses, easy wear of hydraulic hoses and loose joints.

[0006] The utility model provides a horizontal oil cylinder, which comprises a first cylinder body and a first movable member. The first movable member is slidably arranged on the first cylinder body to extend or retract relative to the first cylinder body. The first movable member also divides the inner cavity of the first cylinder body into a first cavity and a second cavity. The first movable member is provided with relatively independent first passages and second passages.

[0007] In an embodiment of the present invention, the first cylinder body has a first connecting channel, the first connecting channel has a length extending along a first direction, and the first connecting channel is inserted into the first movable member and communicated with the first channel.

[0008] In one embodiment of the utility model, the first cylinder body is provided with a first oil port, a second oil port and a third oil port, the first oil port is connected to the first chamber, the second oil port is connected to the third chamber of the vertical cylinder through the first channel, and the third oil port, the second chamber, the second channel are connected to the fourth chamber of the vertical cylinder in sequence.

[0009] In one embodiment of the utility model, the first cylinder body has a first end and a second end, the first oil port and the second oil port are opened at the first end, the third oil port is opened at the second end, and the first movable member extends out of the first cylinder body from the second end.

[0010] In one embodiment of the utility model, a first mounting seat is installed at the first end of the first cylinder body, a second mounting seat is installed at the second end of the first cylinder body, a first oil circuit is connected between the first mounting seat and the second mounting seat, the first mounting seat is provided with a third channel connected to the first oil circuit and a fourth channel connected to the first chamber, the first mounting seat is also provided with a fifth channel and a sixth channel connected to the first channel, the sixth channel and the first connecting channel are integrated, the fifth channel and the sixth channel are connected through a connecting pipe, and the second mounting seat is provided with a seventh channel connected to the first oil circuit and the second chamber.

[0011] In one embodiment of the utility model, the first movable part includes a head and a rod, the head is placed in the first cylinder body, the head is located in the first cylinder body and is slidably connected to the first cylinder body along a first direction, the head is provided with a second connecting channel, the second connecting channel connects the second channel and the second chamber, one end of the rod is fixedly connected to the head, and the other end extends outside the first cylinder body along the first direction, and the rod is provided with the first channel and the second channel.

[0012] In one embodiment of the utility model, the rod portion includes a third end and a fourth end, the third end is close to the head and is located in the first cylinder body, the fourth end is away from the head and extends out of the first cylinder body, the first channel has a length extending along the first direction, and the two ends of the first channel extend to the third end and the fourth end respectively, and the second channel has a length extending along the first direction, and the two ends of the second channel extend to the third end and the fourth end respectively.

[0013] The utility model also provides a working machine leg device, including a vertical oil cylinder and a horizontal oil cylinder as described above, the vertical oil cylinder includes a second cylinder body and a second movable part, the second movable part is slidably arranged on the second cylinder body, and the second movable part also divides the inner cavity of the second cylinder body into a third cavity and a fourth cavity, the first channel is connected to the third cavity, and the second channel is connected to the fourth cavity.

[0014] In an embodiment of the utility model, the working machine outrigger device further includes a delivery pipeline, the first channel is connected to the third cavity through the delivery pipeline, and the second channel is connected to the fourth cavity through the delivery pipeline.

[0015] In one embodiment of the utility model, the working machine outrigger device also includes a fixed outrigger box and a movable outrigger box, the first cylinder body is fixedly connected to the fixed outrigger box, the second cylinder body is fixedly connected to the movable outrigger box, the first movable part is slidably connected to the first cylinder body, and the end of the first movable part away from the first cylinder body is fixedly connected to the second cylinder body.

[0016] In the horizontal oil cylinder and the operating machine leg device of the utility model, when the horizontal oil cylinder is extending or retracting, the first cylinder body is fixed, and the first movable part moves along the first cylinder body to perform telescopic movement. A relatively independent first channel and a second channel are provided in the first movable part to form an oil circuit for conveying hydraulic oil, so that the length of the oil circuit can be changed by utilizing the telescopic movement of the first movable part, that is, a shorter length of conveying pipeline can be used to connect and convey the hydraulic oil, thereby avoiding the problem of knotting and chaotic trajectory caused by the excessive length of the conveying pipeline during the telescopic movement of the first movable part; at the same time, friction with structural parts is avoided, thereby greatly reducing the wear and looseness of pipelines and joints, oil leakage and other faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the working condition of the truck crane with its outriggers fully extended in the prior art.

[0018] Figure 2 It is a cross-sectional view of a horizontal oil cylinder in the prior art.

[0019] Figure 3 It is a top view of a horizontal oil cylinder in the prior art.

[0020] Figure 4 The present invention is a schematic diagram of a horizontal cylinder of a working machine outrigger device according to an embodiment of the present invention.

[0021] Figure 5 It is a front view of a horizontal cylinder of an outrigger device of an operating machine according to an embodiment of the utility model.

[0022] Figure 6 The utility model is a cross-sectional view of a horizontal cylinder of a working machine outrigger device according to an embodiment of the present invention.

[0023] Figure 7 The utility model is a top view of the horizontal cylinder of the working machine outrigger device according to one embodiment of the present invention.

[0024] Figure 8 The utility model is a side view of a horizontal cylinder of a working machine outrigger device according to an embodiment of the present invention.

[0025] Fig. 9 It is a schematic structural diagram of a working machine outrigger device according to one embodiment of the utility model.

[0026] Fig.10 It is a partial schematic diagram of an outrigger device for a working machine according to an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] The utility model provides a horizontal oil cylinder, such as Figure 4 and Figure 9-10 As shown, a horizontal cylinder 10 of an embodiment includes a first cylinder body 11 and a first movable member 12. The first movable member 12 is slidably disposed on the first cylinder body 11 to extend or retract relative to the first cylinder body 11. The first movable member 12 also divides the inner cavity of the first cylinder body 11 into a first cavity 111 and a second cavity 112. The first movable member 12 is provided with a relatively independent first channel 121 and a second channel 122. The vertical cylinder 20 includes a second cylinder body 21 and a second movable member 22. The second movable member 22 is slidably disposed on the second cylinder body 21. The second movable member 22 also divides the inner cavity of the second cylinder body 21 into a third cavity and a fourth cavity. The first channel 121 is connected to the third cavity, and the second channel 122 is connected to the fourth cavity.

[0029] In the horizontal oil cylinder of the utility model, when the horizontal oil cylinder 10 is extending or contracting, the first cylinder body 11 is fixed, and the first movable part 12 moves along the first cylinder body to perform telescopic movement. A relatively independent first channel 121 and a second channel 122 are provided in the first movable part 12 to form an oil circuit for conveying hydraulic oil, so that the length of the oil circuit can be changed by utilizing the telescopic movement of the first movable part 12, that is, a shorter length of conveying pipeline can be used to connect and convey the hydraulic oil, thereby avoiding the problem of knotting and chaotic trajectory caused by the excessive length of the conveying pipeline during the telescopic movement of the first movable part 12; at the same time, friction with structural parts is avoided, thereby greatly reducing the wear and looseness of pipelines and joints, oil leakage and other faults.

[0030] For ease of description and understanding, the first direction is defined as the direction in which the first movable member 12 moves, that is, the left-right direction. The first movable member 12 extends rightwardly from the first cylinder body 11, and the first movable member 12 retracts leftwardly from the first cylinder body 11.

[0031] In this embodiment, the first cylinder 11 has a first connecting channel 114 . The first connecting channel 114 has a length extending in the left-right direction. The first connecting channel 114 is inserted into the first movable member 12 and communicates with the first channel 121 .

[0032] Specifically, the first cylinder body 11 is provided with a first connecting channel 114 protruding along the left-right direction. The first connecting channel 114 is coaxially arranged with the first channel 121. When the first movable member 12 moves out of the first cylinder body 11 and moves to the end of the first cylinder body 11, the end of the first connecting channel 114 away from the first oil port 115 is placed in the first movable member 12 and communicates with the first channel 121.

[0033] The length of the first connecting channel 114 needs to be set to match the extension action of the first movable member 12. When the horizontal oil cylinder 10 is opened to perform the extension action, the first movable member 12 moves rightward and extends out of the first cylinder body 11, and moves to the rightmost end of the first cylinder body 11 and extends into place. At this time, the first connecting channel 114 is still connected to the first channel 121, that is, the leftmost end of the first connecting channel 114 is still inserted into the first movable member 12 and remains connected to the first channel 121.

[0034] In this embodiment, the first cylinder body 11 is provided with a first oil port 115, a second oil port 116 and a third oil port 117, and the first oil port 115 is connected to the first chamber 111. The second oil port 116 is connected to the third chamber of the vertical cylinder 20 through the first channel 121, and the third oil port 117, the second chamber 112, and the second channel 122 are connected to the fourth chamber of the vertical cylinder 20 in sequence. Specifically, the hydraulic oil leading to the third chamber of the vertical cylinder 20 enters from the second oil port 116, enters the third chamber through the first channel 121, so that the second movable member 22 extends out of the second cylinder body 21; the hydraulic oil leading to the fourth chamber of the vertical cylinder 20 enters from the third oil port 117, enters the fourth chamber through the second chamber 112 and the second channel 122, so that the second movable member 22 retracts into the second cylinder body 21.

[0035] In this embodiment, the first cylinder body 11 has a first end and a second end, the first oil port 115 and the second oil port 116 are opened at the first end, the third oil port 117 is opened at the second end, and the first movable member 12 extends out of the first cylinder body 11 from the second end. Figure 4 In the structure shown, the first end is the left end and the second end is the right end, that is, the first oil port 115 and the second oil port 116 are opened at the left end of the first cylinder body 11 and the third oil port 117 is opened at the right end of the first cylinder body 11 .

[0036] In this embodiment, Figure 5-8As shown, a first mounting seat 13 is fixedly mounted on the first end of the first cylinder body 11, and the first mounting seat 13 closes one end of the first cylinder body 11. A second mounting seat 14 is mounted on the second end of the first cylinder body 11, and a first oil circuit 15 is connected between the first mounting seat 13 and the second mounting seat 14. The first mounting seat 13 is provided with a third channel 131 connected to the first oil circuit 15, a fourth channel 132 connected to the first chamber 111, and the first mounting seat 13 is also provided with a fifth channel 133 and a sixth channel 134 connected to the first channel 121. The third channel 131, the fourth channel 132 and the fifth channel 133 are arranged at intervals on the first mounting seat 13, and the fifth channel 133 and the sixth channel 134 are connected through a connecting pipe 16. The sixth channel 134 and the first connecting channel 114 are arranged in an integrated manner. The second mounting seat 14 is provided with a seventh channel 141 connected to the first oil circuit 15 and the second chamber 112. The hydraulic oil can enter the first chamber 111 through the fourth channel 132, so that the first movable member 12 moves rightward along the first cylinder body 11 and extends out of the first cylinder body 11; the hydraulic oil can enter the second chamber 112 through the seventh channel 141, so that the first movable member 12 moves leftward along the first cylinder body 11 and retracts into the first cylinder body 11.

[0037] In this embodiment, the first movable member 12 includes a head 123 and a rod 124. The head 123 is placed in the first cylinder body 11. The head 123 is located in the first cylinder body 11 and is slidably connected to the first cylinder body 11 along the left-right direction. The head 123 is provided with a second connecting channel, and the second connecting channel connects the second channel 122 and the second chamber 112. One end of the rod 124 is fixedly connected to the head 123, and the other end extends to the outside of the first cylinder body 11 along the left-right direction. The rod 124 is provided with a first channel 121 and a second channel 122.

[0038] Specifically, the rod 124 includes a third end and a fourth end, the third end is close to the head 123 and is located in the first cylinder body 11, and the fourth end is far away from the head 123 and extends from the second end of the first cylinder body 11 to the outside of the first cylinder body 11. The first channel 121 has a length extending in the left-right direction, and the two ends of the first channel 121 extend to the third end and the fourth end respectively, and the second channel 122 has a length extending in the left-right direction, and the two ends of the second channel 122 extend to the third end and the fourth end respectively. It can be understood from the illustrated structure that the third end is the left end of the rod 124, and the fourth end is the right end of the rod 124.

[0039] The utility model also provides a working machine outrigger device, comprising a vertical oil cylinder 20 and a horizontal oil cylinder 10. The vertical oil cylinder 20 comprises a second cylinder body 21 and a second movable member 22, the second movable member 22 is slidably disposed on the second cylinder body 21, and the second movable member 22 further divides the inner cavity of the second cylinder body 21 into a third cavity and a fourth cavity, the first channel 121 is connected to the third cavity, and the second channel 122 is connected to the fourth cavity.

[0040] The head 123 separates the first cylinder 11 into a first chamber 111 and a second chamber 112. The head 123 and the inner wall of the first cylinder 11 are in sliding and sealing cooperation, so that during the reciprocating motion of the first movable member 12 in the first cylinder 11, the first chamber 111 and the second chamber 112 are always two sealed chambers. When hydraulic oil is delivered to the first chamber 111, the head 123 is driven to extend the rod 124 out of the first cylinder 11; when hydraulic oil is delivered to the second chamber 112, the head 123 is driven to retract the rod 124. The rod 124 is hollow and has a first channel 121 and a second channel 122. The end of the first channel 121 close to the first mounting seat 13 is connected to the sixth channel 134, and the fifth channel 133, the sixth channel 134, and the first channel 121 are connected in sequence to form a second oil circuit. The end of the first channel 121 away from the first mounting seat 13 is connected to a hydraulic hose, and the end of the hydraulic hose away from the first channel 121 is connected to the third chamber (rodless chamber) of the vertical oil cylinder 20. One end of the second channel 122 is connected to the second chamber 112 through the second connecting channel of the head 123, and the third channel 131, the first oil circuit 15, the seventh channel 141, the second chamber 112, the second connecting channel, and the second channel 122 are connected in sequence to form a third oil circuit. The end of the second channel 122 away from the first mounting seat 13 is connected to a hydraulic hose, and the end of the hydraulic hose away from the second channel 122 is connected to the fourth chamber (rod chamber) of the vertical oil cylinder 10.

[0041] The rod portion 124 is inside the first cylinder body 11 , and the central axis of the rod portion 124 is on the same straight line as the central axis of the first cylinder body 11 .

[0042] It should be noted that the first mounting seat 13 is connected to the control valve group. The first oil port 115 is integrated with the fourth channel 132 , the second oil port 116 is integrated with the fifth channel 133 , and the third oil port 117 is integrated with the seventh channel 141 . Specifically, the hydraulic oil enters the fourth channel 132 from the first oil port 115 and reaches the first chamber 111, at which time the first movable member 12 moves to the right and extends out of the first cylinder body 11; the hydraulic oil enters the fifth channel 133 from the second oil port 116, passes through the connecting pipe 16, the sixth channel 134, the first connecting channel 114, and the first channel 121 to reach the third chamber of the vertical cylinder 20, at which time the second movable member 22 moves to extend out of the second cylinder body 21; the hydraulic oil enters the seventh channel 141 from the third oil port 117, passes through the second chamber 112, the connecting channel, and the second channel 122 to reach the third chamber of the vertical cylinder 20, at which time the second movable member 22 moves to retract into the second cylinder body 21; after the second movable member 22 is completely retracted into the second cylinder body 21, the hydraulic oil continues to be injected, and the hydraulic oil enters the seventh channel 141 to reach the second chamber 112, at which time the first movable member 12 moves to the left and retracts into the first cylinder body 11.

[0043] In this embodiment, the working machine outrigger device further includes a delivery pipeline 30, the first channel 121 is connected to the third cavity through the delivery pipeline 30, and the second channel 122 is connected to the fourth cavity through the delivery pipeline 30. Specifically, the delivery pipeline 30 is a hydraulic hose.

[0044] In this embodiment, the horizontal oil cylinder 10 further includes a guide sleeve 17, which is sleeved on the rod 124 and fixedly connected to the first cylinder body 11. Specifically, the guide sleeve 17 is located at one end of the first cylinder body 11 away from the first mounting seat 13, one end of the rod 124 is fixedly connected to the head 123, and the other end extends outward through the guide sleeve 17, and reciprocates in the first cylinder body 11 through the head 123, thereby driving the rod 124 to reciprocate synchronously, so that the rod 124 is received in the first cylinder body 11 or extends out of the first cylinder body 11. The guide sleeve 17 is used to guide and support the rod 124 to ensure the accuracy and stability of the rod 124 during the reciprocating motion, and can reduce the deviation, shaking and friction of the rod 124.

[0045] In this embodiment, the horizontal oil cylinder 10 further includes a seal 18, which is sleeved on the head 123 and is engaged with the head 123, and the seal 18 abuts against the inner wall of the first cylinder body 11. Specifically, the seal 18 is sleeved on the head 123 and is fixedly connected with the head 123 by convex-concave matching. The outer side of the seal 18 abuts against the inner wall of the first cylinder body 11 to separate the first cylinder body 11 into a first cavity 111 and a second cavity 112. The outer diameter of the seal 18 is larger than the outer diameter of the head 123, and the outer surface of the head 123 does not directly contact the inner wall of the first cylinder body 11, and there is a gap between the inner wall of the first cylinder body 11. During the reciprocating motion of the first movable member 12 in the first cylinder body 11, the head 123 contacts and repeatedly rubs against the inner wall of the first cylinder body 11, and after a long period of use, a certain amount of wear will be generated on the head 123 and the inner wall of the first cylinder body 11. The seal 18 is made of rubber. When the head 123 reciprocates, the seal 18 directly contacts and repeatedly rubs against the inner wall of the first cylinder body 11, thereby increasing the service life of the parts. When parts need to be replaced, it is not necessary to replace the entire first movable part 12, but only the seal 18 can be replaced, thus saving production costs.

[0046] In this embodiment, the horizontal oil cylinder 10 further includes a plurality of sealing rings 19. The sealing ring 19 is embedded in the inner wall of the head 123 near the sixth channel 134, and the sealing ring 19 is embedded in the outer side of the guide sleeve 17 near the first cylinder body 11 and the inner side near the rod 124. The sealing ring 19 can prevent the hydraulic oil in the first cylinder body 11 from leaking or external contaminants from entering.

[0047] Specifically, the sealing ring 19 can be any one of an O-shaped sealing ring, an L-shaped sealing ring, a Y-shaped sealing ring or a rectangular sealing ring, or a combination of multiple thereof. The sixth channel 134 runs through the head 123, and a sealing ring 19 is provided on the side of the head 123 close to the sixth channel 134, so that a sealing fit is achieved between the head 123 and the sixth channel 134, thereby ensuring the sealing between the two, thereby achieving a better isolation effect between the first cavity 111 and the second cavity 112, making the horizontal oil cylinder 10 more stable during use, and ensuring the working quality of the horizontal oil cylinder 10.

[0048] Specifically, two O-rings are embedded in the inner wall of the head 123 close to the sixth channel 134, and the two O-rings are spaced apart. A Y-ring and an L-ring are embedded in the inner wall of the guide sleeve 17 close to the rod 124, and an O-ring is embedded in the outer side of the guide sleeve 17 away from the rod 124. It can be understood that the model of the sealing ring 19 can be selected according to actual conditions, and is not limited here.

[0049] In this embodiment, Figure 9-10 As shown, the operating machine outrigger device also includes a fixed outrigger box 40 and a movable outrigger box 50, the first cylinder body 11 is fixedly connected to the fixed outrigger box 40, the second cylinder body 21 is fixedly connected to the movable outrigger box 50, the first movable part 12 is slidably connected to the first cylinder body 11, and the end of the first movable part 12 away from the first cylinder body 11 is fixedly connected to the second cylinder body 21.

[0050] The utility model also provides a working machine, comprising the working machine outrigger device as described above. Specifically, the working machine can be a crane, or a concrete pump truck, etc.

[0051] In this embodiment, when the operating machine needs to operate, the movable leg box 50 needs to be extended to increase the stability and load-bearing capacity of the operation. The horizontal cylinder 10 drives the movable leg box 50 to reciprocate relative to the fixed leg box 40, that is, the movable leg box 50 extends from the fixed leg box 40 or retracts the fixed leg box 40. After the movable leg box 50 is extended to the fixed leg box 40 under the action of the horizontal cylinder 10, the second movable member 22 of the vertical cylinder 20 extends to abut against the ground to support the movable leg box 50.

[0052] During the extension and retraction of the movable leg box 50, the first movable part 12 and the second cylinder body 21 of the vertical oil cylinder 20 remain relatively fixed. The first channel 121 is connected to the first chamber of the second cylinder body 21 through the delivery pipe 30, and the second channel 122 is connected to the second chamber of the second cylinder body 21 through the delivery pipe 30. The first channel 121 and the second channel 122 replace the delivery pipe 30 to serve as a delivery pipe for the hydraulic oil to flow to the vertical oil cylinder 20. During the connection process, the length of the delivery pipe 30 used is relatively short and remains relatively fixed with the first movable part 12 and the second cylinder body 21. Regardless of whether the horizontal oil cylinder 10 is driving the movable leg box 50 to extend or retract, the failure of the delivery pipe 30 being knotted inside the movable leg box 50 due to being too long is avoided. At the same time, the hydraulic hose is relatively fixed to the first movable part 12 and the first cylinder body 11, avoiding friction with the inside of the movable leg box 50, thereby greatly reducing the wear of the delivery pipe 30 and the loosening of the joints.

[0053] The working process of the working machine outrigger device of this embodiment is as follows:

[0054] First, the hydraulic oil enters the first cavity 111 from the fourth channel 132, driving the first movable part 12 to move to the right and extend out of the first cylinder body 11, and the rod 124 drives the movable leg box 50 to extend relative to the fixed leg box 40. The first movable part 12 moves to the right until the head 123 abuts against the guide sleeve 17. At this time, the horizontal cylinder 10 completes the extension action, and synchronously, the movable leg box 50 extends out of the fixed leg box 40; then, the vertical cylinder 20 starts to move, that is, the hydraulic oil enters from the fifth channel 133, passes through the connecting pipe 16, the sixth channel 134, the first channel 121, and the conveying pipeline 30 to the third cavity of the vertical cylinder 20, driving the second movable part 22 to move and extend out of the second cylinder body 21 until it abuts against the ground to support the movable leg box 50, completing the extension action.

[0055] After the operation of the operating machine is completed, the movable leg box 50 needs to be retracted into the fixed leg box 40. First, the hydraulic oil enters from the third channel 131, passes through the first oil circuit 15, the seventh channel 141, the second chamber 112, the second connecting channel, the second channel 122, the delivery pipeline 30 to the fourth chamber of the vertical oil cylinder 20, and drives the second movable member 22 to move and retract the second cylinder body 21; then, the hydraulic oil enters the second chamber 112 from the seventh channel 141, drives the first movable member 12 to move leftward and retract the first cylinder body 11, and the first movable member 12 drives the movable leg box 50 to move synchronously and retract into the fixed leg box 40.

[0056] It should be noted that the cross-sectional area of ​​the axial section of the guide sleeve 17 gradually decreases toward the left. When the horizontal oil cylinder 10 completes the extension action, the head 123 abuts against the guide sleeve 17, and the guide sleeve 17 does not seal the second connecting channel of the head 123. There is still space for liquid circulation between the second connecting channel and the seventh channel 141 (its second chamber 112). The hydraulic oil enters the second chamber from the seventh channel 141, flows through the second connecting channel, the second channel 122, and the delivery pipeline 30, and enters the fourth chamber of the vertical oil cylinder 20, driving the second movable member 22 to retract the second cylinder body 21.

[0057] In this document, unless otherwise specified or 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0058] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description. Therefore, they should not be understood as limitations on the present invention.

[0059] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0060] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A horizontal cylinder, characterized in that: The horizontal oil cylinder (10) comprises a first cylinder body (11) and a first movable member (12); the first movable member (12) is slidably arranged on the first cylinder body (11) to achieve extension or contraction relative to the first cylinder body (11); the first movable member (12) further divides the inner cavity of the first cylinder body (11) into a first cavity (111) and a second cavity (112); the first movable member (12) is provided with a relatively independent first channel (121) and a second channel (122).

2. The horizontal cylinder according to claim 1, characterized in that: The first cylinder (11) has a first connecting channel (114), the first connecting channel (114) has a length extending along a first direction, and the first connecting channel (114) is inserted into the first movable member (12) and communicates with the first channel (121).

3. The horizontal cylinder according to claim 2, characterized in that: The first cylinder body (11) is provided with a first oil port (115), a second oil port (116) and a third oil port (117); the first oil port (115) is communicated with the first chamber (111); the second oil port (116) is communicated with the third chamber of the vertical oil cylinder through the first channel (121); the third oil port (117), the second chamber (112) and the second channel (122) are communicated with the fourth chamber of the vertical oil cylinder in sequence.

4. The horizontal cylinder according to claim 3, characterized in that: The first cylinder body (11) has a first end and a second end, the first oil port (115) and the second oil port (116) are opened at the first end, the third oil port (117) is opened at the second end, and the first movable member (12) extends out of the first cylinder body (11) from the second end.

5. The horizontal cylinder according to claim 4, characterized in that: The first end of the first cylinder body (11) is provided with a first mounting seat (13), the second end of the first cylinder body (11) is provided with a second mounting seat (14), a first oil circuit (15) is connected between the first mounting seat (13) and the second mounting seat (14), the first mounting seat (13) is provided with a third channel (131) connected to the first oil circuit (15), and a fourth channel (132) connected to the first chamber (111), the first mounting seat (13) is further provided with a fifth channel (133) and a sixth channel (134) connected to the first channel (121), the sixth channel (134) and the first connecting channel (114) are integrally arranged, the fifth channel (133) and the sixth channel (134) are connected via a connecting pipe (16), and the second mounting seat (14) is provided with a seventh channel (141) connected to the first oil circuit (15) and the second chamber (112).

6. The horizontal cylinder according to claim 1, characterized in that: The first movable member (12) comprises a head (123) and a rod (124); the head (123) is disposed in the first cylinder body (11); the head (123) is located in the first cylinder body (11) and is slidably connected to the first cylinder body (11) along a first direction; the head (123) is provided with a second connecting channel, and the second connecting channel connects the second channel (122) and the second chamber (112); one end of the rod (124) is fixedly connected to the head (123), and the other end extends to the outside of the first cylinder body (11) along the first direction; the rod (124) is provided with the first channel (121) and the second channel (122).

7. The horizontal cylinder according to claim 6, characterized in that: The rod portion (124) comprises a third end and a fourth end, the third end is close to the head portion (123) and is located in the first cylinder body (11), and the fourth end is far away from the head portion (123) and extends out of the first cylinder body (11), the first channel (121) has a length extending along the first direction, and two ends of the first channel (121) extend to the third end and the fourth end respectively, and the second channel (122) has a length extending along the first direction, and two ends of the second channel (122) extend to the third end and the fourth end respectively.

8. A working machine outrigger device, characterized in that: It comprises a vertical cylinder (20) and a horizontal cylinder (10) as claimed in any one of claims 1 to 7, wherein the vertical cylinder (20) comprises a second cylinder body (21) and a second movable member (22), wherein the second movable member (22) is slidably arranged on the second cylinder body (21), and the second movable member (22) further divides the inner cavity of the second cylinder body (21) into a third cavity and a fourth cavity, wherein the first channel (121) is connected to the third cavity, and the second channel (122) is connected to the fourth cavity.

9. The working machine outrigger device according to claim 8, characterized in that: The working machine outrigger device further comprises a delivery pipeline (30), the first channel (121) being in communication with the third chamber via the delivery pipeline (30), and the second channel (122) being in communication with the fourth chamber via the delivery pipeline (30).

10. The working machine outrigger device according to claim 8, characterized in that: The working machine outrigger device also includes a fixed outrigger box (40) and a movable outrigger box (50), the first cylinder body (11) is fixedly connected to the fixed outrigger box (40), the second cylinder body (21) is fixedly connected to the movable outrigger box (50), the first movable member (12) is slidably connected to the first cylinder body (11), and one end of the first movable member (12) away from the first cylinder body (11) is fixedly connected to the second cylinder body (21).

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