Hydraulic device for conveying heart valve stent

Abstract

The utility model provides a hydraulic device for conveying a heart valve stent. The hydraulic device comprises a hydraulic driving part, a hydraulic cylinder and a piston part, an inner cavity of the hydraulic cylinder is divided into a first hydraulic cavity and a second hydraulic cavity by the piston part; a sliding guide rail is arranged outside the hydraulic cylinder; the locking piece is provided with a locking position and a pressing block assembly on one side of the locking position, and the locking piece is arranged on the sliding guide rail; one end of the connecting rod is rotatably connected with the hydraulic cylinder, and the other end of the connecting rod is eccentrically and rotatably connected with the unlocking block; the hydraulic driving part supplies liquid to the second hydraulic cavity so that the unlocking block can move to the locking position and be blocked by the locking position. The hydraulic driving part supplies liquid to the first hydraulic cavity so that the unlocking block can rotate at the locking position, the unlocking block can make contact with the pressing block assembly and press the pressing block assembly downwards, and meanwhile the locking position moves downwards to change the blocking state of the locking position on the unlocking block. According to the utility model, the problem that the operation is tedious as hydraulic devices are required to be controlled and manual operation is also required when the delivery of the heart valve stent is completed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heart valves, in particular to a hydraulic device for conveying a heart valve stent. Background Art

[0002] A heart valve stent is a plastically deformable stent used to treat heart valve diseases. Currently, the heart valve stent is generally delivered hydraulically. In order to prevent the heart valve stent from moving too quickly under the push of the hydraulic device and causing damage or injury to the heart valve, a limiting structure can be added at the midway position of the hydraulic device. Only after the limiting structure is manually pressed to unlock it can the hydraulic device continue to push the heart valve stent.

[0003] It can be seen that the delivery of the heart valve stent requires both the control of hydraulic devices and manual operation, so the operation is cumbersome. Utility Model Content

[0004] The problem solved by the utility model is that the delivery of the heart valve stent requires both the control of hydraulic components and manual operation, so the operation is complicated.

[0005] In order to solve the above problems, the utility model provides a hydraulic device for conveying a heart valve stent, the hydraulic device comprising: a hydraulic drive unit, a first pipeline, a second pipeline, a hydraulic cylinder, and a piston unit; the piston unit is located in the hydraulic cylinder, the piston unit divides the inner cavity of the hydraulic cylinder into a first hydraulic cavity and a second hydraulic cavity, the hydraulic drive unit is connected to the first hydraulic cavity through the first pipeline, and the hydraulic drive unit is connected to the second hydraulic cavity through the second pipeline; a sliding guide rail is provided on the outer side of the hydraulic cylinder; a locking member, the locking member is provided with a locking position and a pressure block assembly on one side of the locking position, the locking member is provided on the sliding guide rail, and the locking member can be close to or away from the sliding guide rail To switch the blocking state of the locking position on the sliding guide rail; an unlocking block and a connecting rod, one end of the connecting rod is rotatably connected to the hydraulic cylinder, and the other end of the connecting rod is eccentrically rotatably connected to the unlocking block; wherein, the hydraulic drive unit supplies fluid to the first hydraulic chamber to enable the unlocking block to move to the locking position and be blocked by the locking position; the hydraulic drive unit supplies fluid to the second hydraulic chamber to enable the unlocking block to rotate at the locking position and move the unlocking block to above the pressing block assembly; the hydraulic drive unit continues to supply fluid to the first hydraulic chamber to enable the unlocking block to contact and press down the pressing block assembly, and the locking position simultaneously moves downward to change its blocking state to the unlocking block.

[0006] The technical effect achieved after adopting this technical solution is as follows: the hydraulic drive unit is used to control the relative movement of the piston unit and the hydraulic cylinder, thereby controlling the delivery of the heart valve stent; when the hydraulic drive unit drives the hydraulic cylinder to slide, the unlocking block enters the locking position so that the hydraulic cylinder cannot continue to slide, thereby preventing the heart valve stent from being easily damaged due to excessive movement at one time, and then the hydraulic drive unit is controlled to supply liquid to the second hydraulic chamber, the hydraulic cylinder pushes the connecting rod, and the other end of the connecting rod drives the unlocking block to rotate, thereby rotating to the pressing block assembly; the hydraulic drive unit then supplies liquid to the first hydraulic chamber, and the other end of the connecting rod pulls the unlocking block to rotate in the opposite direction, thereby pressing the pressing block assembly downward, and the locking piece is pressed down as a whole, and the locking position moves downward to disengage from the unlocking block, at which time the unlocking block is no longer locked in the cup position, and the hydraulic drive unit supplies liquid to the first hydraulic chamber again to continue to drive the hydraulic cylinder, thereby realizing the continued delivery of the heart valve stent; therefore, there is no need to manually operate the locking piece from beginning to end, and by controlling the liquid supply method of the hydraulic drive unit, the heart valve stent can be delivered, and the heart valve stent can be contacted in a blocking state when the movement of the heart valve stent is limited, and the operation is simpler.

[0007] Furthermore, the locking member includes an opening and a movement channel connected to the opening, the pressure block assembly is arranged above the opening, and the locking position is located in the movement channel and opposite to the opening; the hydraulic cylinder slides relative to the locking member, enabling the unlocking block to enter the movement channel from the opening and enter the locking position.

[0008] The technical effect achieved after adopting this technical solution is as follows: the pressing block assembly is arranged above the opening, so that the unlocking block can enter the opening and then rotate in the opposite direction to operate the pressing block assembly; when the blocking state is released, the unlocking piece is located in the movement channel, so that the unlocking piece can continue to move away from the opening.

[0009] Furthermore, the unlocking block includes a rotating plate and an unlocking rod, and the unlocking rod is connected to the rotating plate; wherein, the distance L1 from the end of the unlocking rod to the center of the rotating plate is greater than the distance L2 from the center of the locking position to the pressing block assembly.

[0010] The technical effect achieved after adopting this technical solution is as follows: the rotating plate is used to rotate in the locking position, and the unlocking rod is used to drive the pressing block assembly. Specifically, the length of the unlocking rod is long enough so that it can overlap the pressing block assembly. After the rotating plate rotates in the opposite direction, the unlocking rod realizes the downward pressure on the pressing block assembly.

[0011] Furthermore, the pressure block assembly includes: a pressure plate and an elastic plate, wherein the elastic plate is arranged above the pressure plate; an avoidance opening is provided on one side of the pressure plate or on the pressure plate, and the avoidance opening is used to avoid the end of the unlocking rod.

[0012] The technical effect achieved after adopting this technical solution is: when the rotating plate just enters the locking position, the unlocking rod rotates upward. At this time, the end of the unlocking rod pushes the elastic plate upward to compress and deform the elastic plate. After the unlocking rod passes through the elastic plate, the elastic plate rebounds, and the end of the unlocking rod can finally be located above the elastic plate. At the same time, the end of the unlocking rod is also located on the pressure plate, ready to press the pressure plate.

[0013] Furthermore, the unlocking block also includes a sliding member, both ends of the sliding member are connected to the rotating plate, and the sliding member slides on the sliding guide rail.

[0014] The technical effect achieved after adopting this technical solution is as follows: the sliding part makes the two rotating plates on both sides of the sliding guide rail in a symmetrical state and move synchronously; when the connecting rod tightens the rotating plate, the sliding part slides stably against the sliding guide plate, and the rotating plate is always above the hydraulic cylinder, and finally can be accurately docked with the locking position.

[0015] Furthermore, the locking member also includes: a rotating protrusion, which is arranged on the side wall of the movement channel, and the rotating protrusion corresponds to the center of the locking position; the rotating plate is provided with a rotating center hole, and the rotating center hole can cooperate with the rotating protrusion.

[0016] The technical effect achieved after adopting this technical solution is as follows: when the rotating plate enters the locking position, the rotating plate pushes the rotating protrusion to deform toward both sides of the motion channel. When the rotating protrusion corresponds to the center of the rotating center hole, the two cooperate with each other. When the connecting rod pulls the eccentric position of the rotating plate, the rotating plate can be rotated about the rotating protrusion, thereby preventing the rotating plate from being disengaged from the locking position when the locking position has not yet moved down and the blocking state is released.

[0017] Furthermore, the locking member further comprises: a locking boss, wherein the locking boss is arranged on the movement channel, and the side of the locking boss facing the opening is the locking position, and the locking position is an arc-shaped groove.

[0018] The technical effect achieved after adopting this technical solution is: after the rotating plate enters the locking position, it will not continue to slide away from the opening due to the obstruction of the locking boss; the arc groove can guide the rotating plate to rotate better, making it easier for the unlocking rod to press the pressure block assembly when rotating.

[0019] Furthermore, the locking member further includes: a buffer step, and the buffer step is arranged on a side of the locking position close to the opening.

[0020] The technical effect achieved after adopting this technical solution is as follows: after the rotating plate enters the locking position, the buffer step is used to limit the side of the rotating plate close to the opening, thereby preventing the rotating plate from directly sliding out of the opening when the hydraulic drive unit supplies fluid to the second hydraulic chamber, resulting in the inability to tighten the locking piece to open the blocking state of the locking position.

[0021] Furthermore, the hydraulic device includes: a housing having an operation opening, and the locking member is exposed in the operation opening.

[0022] The technical effect achieved by adopting this technical solution is that the operation opening makes it easy to press the locking piece by hand on the outer side of the shell, thereby manually moving the locking position downward to disengage the locking position and the rotating plate.

[0023] Furthermore, the hydraulic device includes: an anti-slip component, which connects the locking component and the hydraulic cylinder.

[0024] The technical effect achieved after adopting this technical solution is as follows: the anti-slip part is used to prevent the locking part from falling out of the operating opening; the anti-slip part can also adopt an elastic part to facilitate the resetting of the locking part; specifically, after the unlocking rod presses down the pressure block assembly, the locking position and the rotating plate are disengaged. At this time, the hydraulic drive part keeps supplying fluid to the first hydraulic chamber, and the unlocking block can continue to move away from the opening. At the same time, the unlocking rod is disengaged from the pressure block assembly, and the locking part contacts the elastic force of the anti-slip part and can move upward to achieve resetting.

[0025] In summary, the above-mentioned technical solutions of the present application may have one or more of the following advantages or beneficial effects: i) when the hydraulic drive unit drives the hydraulic cylinder to slide, the unlocking block enters the locking position so that the hydraulic cylinder cannot continue to slide, thereby preventing the heart valve stent from moving too much at one time and causing easy damage; ii) by controlling the fluid supply method of the hydraulic drive unit, the heart valve stent can be transported and the contact blocking state can be achieved when the movement of the heart valve stent is limited, which makes the operation easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a hydraulic device for conveying a heart valve stent provided by the utility model;

[0027] Figure 2 for Figure 1 A partial enlarged view of the middle I area;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective;

[0029] Figure 4 for Figure 3 Enlarged view of the middle II region;

[0030] Figure 5 for Figure 1 A schematic diagram of the connection between the unlocking block and the locking piece;

[0031] Figure 6 for Figure 1 A schematic diagram of the connection between the unlocking block and the locking member in another state;

[0032] Figure 7 for Figure 1 Schematic diagram of the structure of the unlocking block;

[0033] Figure 8 for Figure 1 Schematic diagram of the structure of the locking part.

[0034] Description of reference numerals:

[0035] 100-hydraulic device; 110-hydraulic drive unit; 111-first pipeline; 112-second pipeline; 120-hydraulic cylinder; 121-first hydraulic chamber; 122-second hydraulic chamber; 123-piston unit; 124-sliding guide rail; 130-locking member; 131-opening; 132-movement channel; 133-locking position; 134-rotating convex portion; 135-locking boss; 136-buffer step; 140-pressure block assembly; 141-pressure plate; 142-elastic plate; 150-unlocking block; 151-rotating plate; 152-unlocking rod; 153-sliding member; 154-rotating center hole; 160-connecting rod; 170-housing; 180-anti-slip member. DETAILED DESCRIPTION

[0036] The utility model aims to provide a hydraulic device for conveying a heart valve stent, which is used to achieve the effect of locking and quickly unlocking a hydraulic cylinder when conveying the heart valve stent.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] See also Figure 1-Figure 8The utility model provides a hydraulic device 100 for conveying a heart valve stent, characterized in that the hydraulic device 100 comprises: a hydraulic drive unit 110, a first pipeline 111, a second pipeline 112, a hydraulic cylinder 120, and a piston unit 123; the piston unit 123 is located in the hydraulic cylinder 120, and the piston unit 123 divides the inner cavity of the hydraulic cylinder 120 into a first hydraulic cavity 121 and a second hydraulic cavity 122, the hydraulic drive unit 110 is connected to the first hydraulic cavity 121 through the first pipeline 111, and the hydraulic drive unit 110 is connected to the second hydraulic cavity 122 through the second pipeline 112; the outer side of the hydraulic cylinder 120 is provided with a sliding guide rail 124; a locking member 130, the locking member 130 is provided with a locking position 133 and a pressing block assembly 140 on one side of the locking position 133, the locking member 130 is arranged on the sliding guide rail 124, and the locking member 130 can Approaching or moving away from the sliding guide rail 124 to switch the blocking state of the locking position 133 on the sliding guide rail 124; the unlocking block 150 and the connecting rod 160, one end of the connecting rod 160 is rotatably connected to the hydraulic cylinder 120, and the other end of the connecting rod 160 is eccentrically rotatably connected to the unlocking block 150; wherein, the hydraulic drive unit 110 supplies fluid to the first hydraulic chamber 121 to enable the unlocking block 150 to move to the locking position 133 and be blocked by the locking position 133; the hydraulic drive unit 110 supplies fluid to the second hydraulic chamber 122 to enable the unlocking block 150 to rotate in the locking position 133, and move the unlocking block 150 to above the pressing block assembly 140; the hydraulic drive unit 110 continues to supply fluid to the first hydraulic chamber 121 to enable the unlocking block 150 to contact and press down the pressing block assembly 140, and the locking position 133 moves downward at the same time to change its blocking state to the unlocking block 150.

[0039] It should be noted that the hydraulic drive unit 110 is used to control the relative movement of the piston unit 123 and the hydraulic cylinder 120, thereby controlling the delivery of the heart valve stent; when the hydraulic drive unit 110 drives the hydraulic cylinder 120 to slide, the unlocking block 150 enters the locking position 133 so that the hydraulic cylinder 120 cannot continue to slide, thereby preventing the heart valve stent from being easily damaged due to excessive movement at one time, and then the hydraulic drive unit 110 is controlled to supply fluid to the second hydraulic chamber 122, and the hydraulic cylinder 120 pushes the connecting rod 160, and the other end of the connecting rod 160 drives the unlocking block 150 to rotate, thereby rotating to the pressing block assembly 140; the hydraulic drive unit 110 then supplies fluid to the first hydraulic chamber 121, and the other end of the connecting rod 160 pulls the unlocking block 150 to rotate in the opposite direction, thereby pressing the pressing block assembly 140 downward, such as Figure 5 and Figure 7As shown, the locking member 130 is completely pressed down, and the locking position 133 moves downward to disengage from the unlocking block 150. At this time, the unlocking block 150 is no longer locked by the locking position 133, and the hydraulic drive unit 110 can continue to drive the hydraulic cylinder 120 by supplying fluid to the first hydraulic chamber 121, thereby realizing the continued delivery of the heart valve stent. Therefore, there is no need to manually operate the locking member 130 from beginning to end. By controlling the fluid supply method of the hydraulic drive unit 110, the heart valve stent can be delivered and can be in a contact blocking state when the movement of the heart valve stent is limited, which makes the operation easier.

[0040] In a specific embodiment, the locking member 130 includes an opening 131 and a movement channel 132 connected to the opening 131, the pressure block assembly 140 is arranged above the opening 131, and the locking position 133 is located in the movement channel 132 and opposite to the opening 131; the hydraulic cylinder 120 slides relative to the locking member 130, enabling the unlocking block 150 to enter the movement channel 132 from the opening 131 and enter the locking position 133.

[0041] It should be noted that the pressing block assembly 140 is arranged above the opening 131, so that the unlocking block 150 can enter the opening 131 and rotate in the opposite direction to operate the pressing block assembly 140; when the blocking state is released, the unlocking piece is located in the moving channel 132, so that the unlocking piece can continue to move away from the opening 131.

[0042] In a specific embodiment, the unlocking block 150 includes a rotating plate 151 and an unlocking rod 152, wherein the unlocking rod 152 is connected to the rotating plate 151; wherein the distance L1 from the end of the unlocking rod 152 to the center of the rotating plate 151 is greater than the distance L2 from the center of the locking position 133 to the pressing block assembly 140.

[0043] It should be noted that the rotating plate 151 is used to rotate in the locking position 133, and the unlocking rod 152 is used to drive the pressure block assembly 140. Specifically, the length of the unlocking rod 152 is long enough so that it can overlap the pressure block assembly 140. After the rotating plate 151 rotates in the opposite direction, the unlocking rod 152 presses down on the pressure block assembly 140.

[0044] In a specific embodiment, the pressure block assembly 140 includes: a pressure plate 141 and an elastic plate 142, wherein the elastic plate 142 is arranged above the pressure plate 141; an avoidance opening 131 is provided on one side of the pressure plate 141 or on the pressure plate 141, and the avoidance opening 131 is used to avoid the end of the unlocking rod 152.

[0045] It should be noted that when the rotating plate 151 just enters the locking position 133, the unlocking rod 152 rotates upward. At this time, the end of the unlocking rod 152 pushes the elastic plate 142 upward to compress and deform the elastic plate 142. After the unlocking rod 152 passes through the elastic plate 142, the elastic plate 142 rebounds, and the end of the unlocking rod 152 can finally be located above the elastic plate 142. At the same time, the end of the unlocking rod 152 is also located on the pressure plate 141, ready to press the pressure plate 141.

[0046] In a specific embodiment, the unlocking block 150 further includes a sliding member 153 , both ends of the sliding member 153 are connected to the rotating plate 151 , and the sliding member 153 slides on the sliding guide rail 124 .

[0047] It should be noted that the sliding member 153 makes the two rotating plates 151 symmetrical on both sides of the sliding guide rail 124 and move synchronously; when the connecting rod 160 tightens the rotating plate 151, the sliding member 153 slides stably against the sliding guide plate, and makes the rotating plate 151 always above the hydraulic cylinder 120, and finally can accurately dock with the locking position 133.

[0048] In a specific embodiment, the locking member 130 also includes: a rotating protrusion 134, which is arranged on the side wall of the movement channel 132, and the rotating protrusion 134 corresponds to the center of the locking position 133; the rotating plate 151 is provided with a rotating center hole 154, and the rotating center hole 154 can cooperate with the rotating protrusion 134.

[0049] It should be noted that when the rotating plate 151 enters the locking position 133, the rotating plate 151 pushes the rotating protrusion 134 to deform toward both sides of the motion channel 132. When the rotating protrusion 134 corresponds to the center of the rotating center hole 154, the two cooperate with each other. When the connecting rod 160 pulls the eccentric position of the rotating plate 151, the rotating plate 151 can be rotated about the rotating protrusion 134, thereby preventing the rotating plate 151 from being separated from the locking position 133 when the locking position 133 has not yet moved down and released the blocking state.

[0050] In a specific embodiment, the locking member 130 further includes: a locking boss 135 , which is disposed in the movement channel 132 . A side of the locking boss 135 facing the opening 131 is a locking position 133 , and the locking position 133 is an arc-shaped groove.

[0051] It should be noted that after the rotating plate 151 enters the locking position 133, it will not continue to slide away from the opening 131 due to the obstruction of the locking boss 135; the arc groove can guide the rotating plate 151 to rotate better, making it easier for the unlocking rod 152 to press the pressure block assembly 140 when rotating.

[0052] In a specific embodiment, the locking member 130 further includes a buffer step 136 , and the buffer step 136 is disposed on a side of the locking position 133 close to the opening 131 .

[0053] It should be noted that after the rotating plate 151 enters the locking position 133, the buffer step 136 is used to limit the side of the rotating plate 151 close to the opening 131, so as to prevent the rotating plate 151 from directly sliding out of the opening 131 when the hydraulic drive unit 110 supplies fluid to the second hydraulic chamber 122, resulting in the inability to press the locking piece 130 to open the blocking state of the locking position 133.

[0054] In a specific embodiment, the hydraulic device 100 includes: a housing 170 having an operation opening, and the locking member 130 is exposed in the operation opening.

[0055] It should be noted that the operation opening is convenient for manually pressing the locking member 130 on the outer side of the housing 170 , thereby manually moving the locking position 133 downward to disengage the locking position 133 from the rotating plate 151 .

[0056] In a specific embodiment, the hydraulic device 100 includes an anti-slip component 180 , which connects the locking component 130 and the hydraulic cylinder 120 .

[0057] It should be noted that the anti-slip member 180 is used to prevent the locking member 130 from falling out of the operating opening; the anti-slip member 180 can also adopt an elastic member to facilitate the resetting of the locking member 130; specifically, after the unlocking rod 152 presses down the pressure block assembly 140, the locking position 133 and the rotating plate 151 are disengaged. At this time, the hydraulic drive unit 110 keeps supplying fluid to the first hydraulic chamber 121, and the unlocking block 150 can continue to move away from the opening 131. At the same time, the unlocking rod 152 is disengaged from the pressure block assembly 140, and the locking member 130 contacts the elastic force of the anti-slip member 180 and can move upward to achieve resetting.

[0058] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A hydraulic device for conveying a heart valve stent, characterized in that: The hydraulic device comprises: A hydraulic drive unit, a first pipeline, a second pipeline, a hydraulic cylinder, and a piston unit; the piston unit is located in the hydraulic cylinder, and the piston unit divides the inner cavity of the hydraulic cylinder into a first hydraulic cavity and a second hydraulic cavity; the hydraulic drive unit is connected to the first hydraulic cavity through the first pipeline, and the hydraulic drive unit is connected to the second hydraulic cavity through the second pipeline; a sliding guide rail is provided on the outer side of the hydraulic cylinder; A locking member, wherein the locking member is provided with a locking position and a pressing block assembly on one side of the locking position, the locking member is arranged on the sliding guide rail, and the locking member can be moved close to or away from the sliding guide rail to switch the blocking state of the locking position on the sliding guide rail; An unlocking block and a connecting rod, one end of the connecting rod is rotatably connected to the hydraulic cylinder, and the other end of the connecting rod is eccentrically rotatably connected to the unlocking block; Among them, the hydraulic driving part supplies fluid to the first hydraulic chamber, which can make the unlocking block move to the locking position and be blocked by the locking position; the hydraulic driving part supplies fluid to the second hydraulic chamber, which can make the unlocking block rotate at the locking position and move the unlocking block to above the pressing block assembly; the hydraulic driving part continues to supply fluid to the first hydraulic chamber, which can make the unlocking block contact and press down the pressing block assembly, and the locking position simultaneously moves downward to change its blocking state of the unlocking block.

2. The hydraulic device according to claim 1, characterized in that: The locking member comprises an opening and a movement channel connected to the opening, the pressing block assembly is arranged above the opening, and the locking position is located in the movement channel and faces the opening; The hydraulic cylinder slides relative to the locking member, so that the unlocking block can enter the movement channel from the opening and enter the locking position.

3. The hydraulic device according to claim 2, characterized in that: The unlocking block comprises a rotating plate and an unlocking rod, and the unlocking rod is connected to the rotating plate; Wherein, the distance L1 from the end of the unlocking rod to the center of the rotating plate is greater than the distance L2 from the center of the locking position to the pressing block assembly.

4. The hydraulic device according to claim 3, characterized in that: The pressing block assembly comprises: a pressing plate and an elastic plate, wherein the elastic plate is arranged above the pressing plate; a avoidance opening is arranged on one side of the pressing plate or on the pressing plate, and the avoidance opening is used to avoid the end of the unlocking rod.

5. The hydraulic device according to claim 3, characterized in that: The unlocking block also includes a sliding member, both ends of which are connected to the rotating plate, and the sliding member slides on the sliding guide rail.

6. The hydraulic device according to claim 3, characterized in that: The locking member further comprises: a rotating protrusion, the rotating protrusion being arranged on the side wall of the movement channel, the rotating protrusion corresponding to the center of the locking position; The rotating plate is provided with a rotating center hole, and the rotating center hole can be matched with the rotating protrusion.

7. The hydraulic device according to claim 2, characterized in that: The locking member further comprises: a locking boss, wherein the locking boss is arranged in the movement channel, and a side of the locking boss facing the opening is the locking position, and the locking position is an arc-shaped groove.

8. The hydraulic device according to claim 2, characterized in that: The locking member further comprises a buffer step, and the buffer step is arranged on a side of the locking position close to the opening.

9. The hydraulic device according to claim 1, characterized in that: The hydraulic device comprises: The housing has an operation opening, and the locking member is exposed in the operation opening.

10. The hydraulic device according to claim 1, characterized in that: The hydraulic device comprises: An anti-slip component is connected to the locking component and the hydraulic cylinder.

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