Ship lift chamber anti-collision plunger latch oil cylinder signal detection device and method

Abstract

The invention discloses a signal detection device and method for an anti-collision plunger latch oil cylinder of a ship chamber of a ship lift. The signal detection device comprises a mounting bracket, a fixing part, a guide part, a gas spring, a sliding block and a detection part, the fixing part and the guide part are respectively arranged on the mounting bracket, the fixing part is used for fixing the gas spring, the sliding block is arranged on a telescopic rod of the gas spring, the detection parts are respectively arranged on two sides of the sliding block, and a trigger piece is arranged on the sliding block; the detection part is used for detecting the upper limit position and the lower limit position of the sliding block at a preset position, and the guide part is used for guiding the sliding block; a telescopic rod of the gas spring abuts against a piston rod of the plunger latch oil cylinder. According to the scheme, the problems that a built-in stroke sensor cannot be installed on the plunger latch oil cylinder and the piston rod is arranged in equipment and cannot be detected to be in place through a conventional method are solved, the reliability of connection or separation of the truss and the steel wire rope can be ensured by accurately detecting the in-place action condition of the plunger latch oil cylinder, and safe operation of ship lift equipment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of ship lifts, and in particular to a signal detection device and method for an anti-collision latch oil cylinder of a ship lift cabin. Background Art

[0002] Anti-collision devices are arranged upstream and downstream of the ship lift cabin to prevent the ship from stalling and colliding with the cabin. The anti-collision devices are composed of a truss, a latch cylinder, a wire rope, a wire rope head, etc. The latch cylinder is installed at one end of the truss, and the wire rope is fixedly connected to the wire rope head. The latch cylinder is used to connect the truss and the wire rope head. When the latch cylinder is pushed out, the truss is connected to the wire rope head, and the truss can be lifted with the wire rope to make way for the ship to enter and exit the cabin; when the latch cylinder is retracted, the truss is separated from the wire rope head, the truss is lifted alone, and the wire rope spans over the cabin water area, playing a role in protecting the cabin from collision.

[0003] The operation status of the latch cylinder is directly related to the reliability of the connection or separation between the truss and the wire rope. Due to the limitations of on-site conditions and the small size of the latch cylinder, the latch cylinder is not suitable for installing a built-in stroke sensor, and the latch cylinder piston rod needs to pass through the inside of the wire rope hanging head. Conventional methods cannot detect the operation status of the latch cylinder. Summary of the invention

[0004] The object of the present invention is to provide a ship lift cabin anti-collision latch cylinder signal detection device and method to address the above-mentioned deficiencies, thereby solving the problem in the prior art that due to site conditions limitations and the latch cylinder being too small, the latch cylinder is not suitable for installing a built-in stroke sensor, and the latch cylinder piston rod needs to pass through the inside of the wire rope hanging head, and conventional methods cannot detect whether the latch cylinder has been put in place.

[0005] The present invention is achieved through the following scheme:

[0006] A signal detection device for an anti-collision latch cylinder of a ship lift cabin comprises a mounting bracket, a fixing portion, a guiding portion, a gas spring, a slider and a detecting portion; the fixing portion and the guiding portion are respectively arranged on the mounting bracket, the fixing portion is used to fix the gas spring, the slider is arranged on the telescopic rod of the gas spring, the detecting portion is respectively arranged on both sides of the slider, and a triggering member is arranged on the slider; the detecting portion detects the upper and lower limit positions of the slider at a predetermined position, and the guiding portion is used to guide the slider; the telescopic rod of the gas spring conflicts with the piston rod of the latch cylinder.

[0007] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the mounting bracket includes a supporting vertical plate, a supporting transverse plate and reinforcing ribs; the supporting transverse plate is vertically arranged to the supporting vertical plate, the supporting transverse plate is arranged at the lower end position of the side wall of the supporting vertical plate, and the reinforcing ribs are arranged between the supporting transverse plate and the supporting vertical plate.

[0008] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the fixed part includes a fixed inner plate and a fixed outer plate; the fixed inner plate is provided with a connecting hole on the end face close to the supporting vertical plate, and the fixed inner plate is fixed to the supporting vertical plate by countersunk bolts, and connecting holes are provided on the contact surface between the fixed inner plate and the fixed outer plate, as well as on the contact surface between the fixed outer plate and the fixed inner plate, and the fixed inner plate and the fixed outer plate are connected as a whole by countersunk bolts.

[0009] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the fixed outer plate is arranged at the center position of the fixed inner plate; a first arc-shaped through groove is arranged on the fixed inner plate; a second arc-shaped through groove matching the first arc-shaped through groove is arranged at a corresponding position on the fixed outer plate, and the size of the circular through groove formed by the combination of the first arc-shaped through groove and the second arc-shaped through groove is adapted to the circular base of the gas spring, and the base of the gas spring is arranged in the circular through groove formed by the first arc-shaped through groove and the second arc-shaped through groove.

[0010] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the guide part includes a fixed plate and a trapezoidal groove; the fixed plate is supported on the vertical plate by countersunk bolts, and the trapezoidal groove is arranged at the center position of the fixed plate, and the setting of the trapezoidal groove matches the position of the telescopic rod of the gas spring.

[0011] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the slider includes a trapezoidal body and a square body; the trapezoidal body and the square body are integrally formed, the size structure of the trapezoidal body is adapted to the trapezoidal groove, a penetrating circular countersunk hole is provided on the square body, and threaded holes connected to the trigger member are provided on both sides of the square body; the telescopic rod is inserted into the circular countersunk hole.

[0012] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the triggering member is a first sensing plate and a second sensing plate, the first sensing plate and the second sensing plate are both L-shaped metal plates, the first sensing plate and the second sensing plate both include a connecting vertical plate and a sensing horizontal plate; the connecting vertical plate and the sensing horizontal plate are vertically arranged, and a through hole is arranged on the connecting vertical plate, and the connecting vertical plate is connected to the side wall of the square body by bolts.

[0013] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the first sensing plate and the second sensing plate are respectively arranged on both sides of the square body, and the first sensing plate and the second sensing plate are arranged in opposite directions.

[0014] Based on the structure of the above-mentioned ship lift cabin anti-collision latch cylinder signal detection device, the sensing part includes a first sensor mounting plate and a second sensor mounting plate; the first sensor mounting plate has the same structure as the second sensor mounting plate, the first sensor mounting plate is T-shaped as a whole, the tail is bent at a right angle and is provided with a threaded hole for mounting the first sensor mounting plate on a supporting vertical plate; two sensors are arranged in parallel on the first sensor mounting plate, and the direction of the sensor matches the position of the first sensing plate.

[0015] The scheme also discloses a detection method of a signal detection device for anti-collision latch cylinder of a ship lift cabin. When the truss needs to be lifted alone and the wire rope crosses the cabin water area to play an anti-collision protection role, the piston rod of the latch cylinder retreats upward, and the gas spring pushes the slider upward under the action of its own elastic force recovery, and the slider pushes the telescopic rod upward; when the first sensor sensing piece on the right side approaches the sensor on the right side and makes the sensor send a retraction signal, the system controls the piston rod of the latch cylinder to stop retraction operation. At this time, the latch cylinder retreats into place, the latch cylinder is separated from the wire rope hanging head, and the truss can be lifted and operated alone without the wire rope;

[0016] When the truss needs to be lifted with the wire rope, the piston rod of the latch cylinder is pushed out downward, the piston rod pushes the telescopic rod downward, the telescopic rod pushes the slider downward, and the slider compresses the gas spring downward; when the second sensor sensing piece on the left is close to the sensor on the left and the sensor sends a push-in-place signal, the system controls the piston rod of the latch cylinder to stop pushing out. At this time, the latch cylinder is pushed into place, the latch cylinder is connected to the wire rope lifting head, and the truss can be lifted and operated with the wire rope through the latch cylinder connected to the wire rope lifting head.

[0017] When the latch cylinder is pushed out, the piston rod pushes the telescopic rod and the slider downward to compress the gas spring; when the latch cylinder is retracted, the gas spring pushes the slider and the telescopic rod upward to reset under its own elastic force. In this way, the slider can accurately track the position of the latch cylinder piston rod, thereby achieving the purpose of detecting the position of the latch cylinder piston rod by detecting the position of the slider.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1) This solution provides a signal detection device and method for the ship lift cabin anti-collision latch cylinder, which solves the problem that the latch cylinder cannot be installed with a built-in stroke sensor and the piston rod is arranged inside the equipment and cannot be detected by conventional methods to determine whether the piston rod is in place. The device can ensure the reliability of the connection or separation between the truss and the wire rope by accurately detecting the movement of the latch cylinder, thereby ensuring the safe operation of the ship lift equipment.

[0020] 2) In this solution, the upward restoring force of the telescopic rod and the slider comes from the rebound force of the gas spring when it is compressed. The elastic force of the gas spring can be adjusted by controlling the inflation pressure, and the gas spring has stable performance and is simple and convenient to maintain.

[0021] 3) In this solution, a trapezoidal groove is provided on the guide part, so that the trapezoidal head of the slider can slide up and down in cooperation with it, which not only guides the slider, but also prevents the slider from turning over and becoming unstable when the square head is subjected to force on one side.

[0022] 4) In this solution, the gas spring is fixed by a fixed inner plate and a fixed outer plate, and the fixing method is reliable. When the gas spring needs to be inflated, maintained or replaced, it is only necessary to remove the gas spring fixed outer plate, which is convenient to operate;

[0023] 5) In this solution, a sensor sensing sheet is installed on each side of the slider, which is used to detect the push-out and retracting of the piston rod of the latch cylinder. Two sensors are set on each side to prevent a single sensor from being interfered with and sending a signal by mistake, thereby improving the redundant reliability of signal detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 A front view of the present invention as a whole;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the slider in the present invention;

[0027] Figure 4 is a schematic diagram of the three-dimensional structure of the first induction plate in the present invention;

[0028] Figure 5 It is a schematic diagram of the cooperation between the detection device of the present invention and the latch cylinder;

[0029] Figure 6 for Figure 5 A-A cross-sectional structural diagram;

[0030] Figure 7 is a structural schematic diagram of the second induction plate when it is in the lower limit position;

[0031] Figure 8 for Figure 7Schematic diagram of the cross-sectional structure of B-B;

[0032] : 1. mounting bracket; 2. fixing part; 3. guide part; 4. gas spring; 5. slider; 6. detection part; 7. trigger member; 8. drainage box; 9. latch cylinder; 10. wire rope hanging head; 110. wire rope hanging head groove; 11. supporting vertical plate; 12. supporting horizontal plate; 13. reinforcing rib; 21. fixed inner plate; 22. fixed outer plate; 23. first arc-shaped through groove; 24. second arc-shaped through groove; 31. fixing plate; 32. trapezoidal groove; 51. trapezoidal body; 52. square body; 61. first sensor mounting plate; 62. second sensor mounting plate; 71. first induction plate; 72. second induction plate; 711. connecting vertical plate; 712. induction horizontal plate; 81. water accumulation cylinder; 82. drainage pipe. DETAILED DESCRIPTION

[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0034] Any feature disclosed in this specification (including any additional claims and abstract), unless otherwise stated, may be replaced by other equivalent or alternative features having similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0035] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a predetermined direction, be constructed and operated in a predetermined direction, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0037] Example 1

[0038] The present invention provides a technical solution:

[0039] A signal detection device for an anti-collision latch cylinder 9 of a ship lift cabin, which at least includes but is not limited to a mounting bracket 1, a fixing portion 2, a guiding portion 3, a gas spring 4, a slider 5 and a detecting portion 6; the fixing portion 2 and the guiding portion 3 are respectively arranged on the mounting bracket 1, the fixing portion 2 is used to fix the gas spring 4, the slider 5 is arranged on the telescopic rod of the gas spring 4, the detecting portion 6 is respectively arranged on both sides of the slider 5, and a trigger member 7 is arranged on the slider 5; the detecting portion 6 detects the upper and lower limit positions of the slider 5 at a predetermined position, and the guiding portion 3 is used to guide the slider 5; the telescopic rod of the gas spring 4 conflicts with the piston rod of the latch cylinder 9.

[0040] Based on the above structure, the telescopic rod of the gas spring 4 conflicts with the piston rod of the latch cylinder 9, so that the movement process of the telescopic rod of the gas spring 4 can reflect the movement process of the piston rod of the latch cylinder 9. Although the latch cylinder 9 cannot be installed with a built-in stroke sensor and the piston rod is arranged inside the equipment and cannot detect the movement of the piston rod in place by conventional methods, the position of the piston rod of the latch cylinder 9 can be reflected indirectly by the position of the telescopic rod of the gas spring 4, that is, the telescopic rod of the gas spring 4 can be detected at a special position to reflect the upper limit position and the lower limit position of the piston rod of the latch cylinder 9. The upper limit position is the position where the latch cylinder 9 retreats into place and the latch cylinder 9 is separated from the wire rope head 10, and the truss can be lifted and operated alone without the wire rope; the lower limit position is the position where the latch cylinder 9 is pushed into place and the latch cylinder 9 is connected to the wire rope head 10, and the truss can be lifted and operated with the wire rope connected to the wire rope head 10 through the latch cylinder 9. The telescopic rod of the gas spring 4 passes through the steel plate of the wire rope hanging head groove 110 of the cabin deck layer, and contacts the piston rod of the latch cylinder 9 inside the wire rope hanging head 10.

[0041] The guide portion 3 provided in the present solution can guide the slider 5 more accurately, so that it can slide up and down at a predetermined position smoothly, efficiently and accurately, so that the trigger member 7 can be more stable when contacting and triggering the detection portion 6.

[0042] As an example, the mounting bracket 1 is a T-shaped structure as a whole, and the mounting bracket 1 may include a supporting vertical plate 11, a supporting horizontal plate 12 and a reinforcing rib 13; the supporting horizontal plate 12 is vertically arranged with respect to the supporting vertical plate 11, the supporting horizontal plate 12 is arranged at the lower end position of the side wall of the supporting vertical plate 11, and the reinforcing rib 13 is arranged between the supporting horizontal plate 12 and the supporting vertical plate 11.

[0043] Based on the above structure, since the supporting horizontal plate 12 is set at the lower end position of the side wall of the supporting vertical plate 11, its upper end position can provide a larger assembly space for other components. At the same time, reinforcing ribs 13 are set between the supporting horizontal plate 12 and the supporting vertical plate 11 to increase the stability of the entire device.

[0044] As an example, the fixed part 2 may include a fixed inner plate 21 and a fixed outer plate 22; a connecting hole is provided on the end face of the fixed inner plate 21 close to the supporting vertical plate 11, and the fixed inner plate 21 is fixed to the supporting vertical plate 11 by countersunk bolts, and connecting holes are provided on the contact surface between the fixed inner plate 21 and the fixed outer plate 22, as well as on the contact surface between the fixed outer plate 22 and the fixed inner plate 21, and the fixed inner plate 21 and the fixed outer plate 22 are connected as a whole by countersunk bolts.

[0045] The fixed outer plate 22 can be set at the center position of the fixed inner plate 21; a first arc-shaped through groove 23 is set on the fixed inner plate 21; a second arc-shaped through groove 24 matching the first arc-shaped through groove 23 is set at a corresponding position on the fixed outer plate 22, and the size of the circular through groove formed by the combination of the first arc-shaped through groove 23 and the second arc-shaped through groove 24 is adapted to the circular base of the gas spring 4, and the base of the gas spring 4 is set in the circular through groove formed by the first arc-shaped through groove 23 and the second arc-shaped through groove 24.

[0046] Based on the above structure, by providing an arc-shaped through groove in the fixed outer plate 22 and the fixed inner plate 21, on the one hand, the position of the gas spring 4 can be fixed. After fixation, the end of the base of the gas spring 4 contacts the supporting cross plate 12, that is, the circular through groove is used to accurately fix the position of the gas spring 4, so that it always remains vertical at the predetermined position, thereby ensuring the accuracy of the position of the telescopic rod of the gas spring 4.

[0047] As an example, the guide portion 3 may include a fixing plate 31 and a trapezoidal groove 32; the fixing plate 31 is fixed to the supporting vertical plate 11 by countersunk bolts, and the trapezoidal groove 32 is arranged at the center position of the fixing plate 31, and the setting of the trapezoidal groove 32 matches the position of the telescopic rod of the gas spring 4.

[0048] The slider 5 may include a trapezoidal body 51 and a square body 52; the trapezoidal body 51 and the square body 52 are integrally formed, and the size structure of the trapezoidal body 51 is adapted to the trapezoidal groove 32, so that the trapezoidal body 51 can move accurately under the guidance of the trapezoidal groove 32; a penetrating circular countersunk hole is provided on the square body 52, and threaded holes connected to the trigger member 7 are provided on both sides of the square body 52; the telescopic rod is inserted into the circular countersunk hole.

[0049] Based on the above structure, by setting the trapezoidal groove 32, the trapezoidal body 51 can be precisely guided, and the slider 5 can be restricted in the trapezoidal groove 32 of the guide part 3, so as to achieve the guiding and limiting functions when the slider 5 slides up and down; the telescopic rod is inserted into the circular countersunk hole of the square body 52, so that the slider 5 and the telescopic rod are fixed as a whole, and under the action of the telescopic rod, the slider 5 can be driven to move synchronously in the specified direction.

[0050] As an example, the trigger member can be a first sensing plate 71 and a second sensing plate 72, both of which are L-shaped metal plates, and both of which can include a connecting vertical plate 711 and a sensing horizontal plate 712; the connecting vertical plate 711 and the sensing horizontal plate 712 are vertically arranged, and a through hole is provided on the connecting vertical plate 711, and the connecting vertical plate 711 is connected to the side wall of the square body 52 by bolts.

[0051] The first sensing plate 71 and the second sensing plate 72 are respectively disposed on both sides of the square body 52 , and the first sensing plate 71 and the second sensing plate 72 are disposed in opposite directions, that is, the first sensing plate 71 and the second sensing plate 72 are disposed in centrosymmetry along the center of the square body 52 .

[0052] Based on the above structure, the first sensing sheet and the second sensing sheet arranged in opposite directions can avoid other internal components, making the entire triggering process more efficient.

[0053] As an example, the sensing part may include a first sensor mounting piece 61 and a second sensor mounting piece 62; the first sensor mounting piece 61 and the second sensor mounting piece 62 have similar structures. Taking the first sensor mounting piece 61 as an example, the first sensor mounting piece 61 is T-shaped as a whole, with a right-angle bend at the tail and a threaded hole provided thereon for mounting the first sensor mounting piece 61 on the supporting vertical plate 11; two sensors are arranged in parallel on the first sensor mounting piece 61, and the directions of the sensors match the positions of the first sensing plate 71;

[0054] Similarly, the orientation of the sensor on the second sensor mounting plate 62 matches the position of the second sensing plate.

[0055] Based on the above structure, when the truss needs to be lifted alone and the wire rope crosses the water area of ​​the cabin to play an anti-collision protection role, the piston rod of the latch cylinder 9 retreats upward, and the gas spring 4 pushes the slider 5 upward under the action of its own elastic recovery, and the slider 5 pushes the telescopic rod upward; when the first sensor sensing piece on the right side approaches the sensor on the right side and the sensor sends a retraction signal, the system controls the piston rod of the latch cylinder 9 to stop retraction, at this time, the latch cylinder 9 retreats into place, the latch cylinder 9 is separated from the wire rope head 10, and the truss can be lifted alone without the wire rope;

[0056] When the truss needs to be lifted with the wire rope, the piston rod of the latch cylinder 9 is pushed out downward, the piston rod pushes the telescopic rod downward, the telescopic rod pushes the slider 5 downward, and the slider 5 compresses the gas spring 4 downward; when the second sensor sensing plate on the left is close to the sensor on the left and the sensor sends a push-in-place signal, the system controls the piston rod of the latch cylinder 9 to stop pushing out. At this time, the latch cylinder 9 is pushed into place, the latch cylinder 9 is connected to the wire rope lifting head 10, and the truss can be lifted with the wire rope through the latch cylinder 9 connected to the wire rope lifting head 10.

[0057] As an example, a drainage box 8 is also provided on the telescopic rod, and the drainage box 8 includes a water collection tube 81 and a drainage pipe 82; a through hole is provided in the middle of the bottom of the water collection tube 81 for the telescopic rod to pass through, and the through hole at the bottom of the drainage box 8 and the telescopic rod are fixed and sealed by sealant or welding; the drainage pipe 82 of the drainage box 8 should be long enough to drain the accumulated water out of the device to avoid affecting the gas spring 4 and the sensor below.

[0058] Based on the above structure, the drainage box 8 provided on the telescopic rod is used to collect and drain rainwater and impurities flowing down the push rod to avoid damage to the gas spring 4 installed below.

[0059] Example 2

[0060] Based on the structure of the above embodiment 1, the present invention provides a technical solution:

[0061] A method for detecting a signal of a ship lift cabin anti-collision latch cylinder 9. When the truss needs to be lifted alone and the wire rope crosses the cabin water area to play an anti-collision protection role, the piston rod of the latch cylinder 9 retreats upward, and the gas spring 4 pushes the slider 5 upward under the action of its own elastic recovery, and the slider 5 pushes the telescopic rod upward; when the first sensor sensing piece on the right side approaches the sensor on the right side and the sensor sends a retraction signal, the system controls the piston rod of the latch cylinder 9 to stop retraction. At this time, the latch cylinder 9 retreats into place, the latch cylinder 9 is separated from the wire rope hanging head 10, and the truss can be lifted alone without the wire rope.

[0062] When the truss needs to be lifted with the wire rope, the piston rod of the latch cylinder 9 is pushed out downward, the piston rod pushes the telescopic rod downward, the telescopic rod pushes the slider 5 downward, and the slider 5 compresses the gas spring 4 downward; when the second sensor sensing plate on the left is close to the sensor on the left and the sensor sends a push-in-place signal, the system controls the piston rod of the latch cylinder 9 to stop pushing out. At this time, the latch cylinder 9 is pushed into place, the latch cylinder 9 is connected to the wire rope lifting head 10, and the truss can be lifted with the wire rope through the latch cylinder 9 connected to the wire rope lifting head 10.

[0063] When the latch cylinder 9 is pushed out, the piston rod pushes the telescopic rod and the slider 5 downward to compress the gas spring 4; when the latch cylinder 9 is retracted, the gas spring 4 pushes the slider 5 and the telescopic rod upward to reset under its own elastic force. In this way, the slider 5 can accurately track the position of the piston rod of the latch cylinder 9, thereby achieving the purpose of detecting the position of the piston rod of the latch cylinder 9 by detecting the position of the slider 5.

[0064] In this solution, the upward restoring force of the telescopic rod and the slider 5 comes from the rebound force of the gas spring 4 when it is compressed. The elastic force of the gas spring 4 can be adjusted by controlling the inflation pressure, and the gas spring 4 has stable performance and is simple and convenient to maintain.

[0065] In this solution, the guide part 3 is provided with a trapezoidal groove 32, so that the trapezoidal head of the slider 5 can slide up and down in cooperation with it, which not only guides the slider 5, but also prevents the slider 5 from turning over and becoming unstable when the square head is subjected to force on one side.

[0066] In this solution, the gas spring 4 is fixed by a fixed inner plate 21 and a fixed outer plate 22, and the fixing method is reliable. When the gas spring 4 needs to be inflated, maintained or replaced, it is only necessary to remove the fixed outer plate 22 of the gas spring 4, which is convenient to operate;

[0067] In this solution, a sensor sensing sheet is installed on each side of the slider 5, which is used to detect the push-out and retracting of the piston rod of the latch cylinder 9. Two sensors are provided on each side to prevent a single sensor from being interfered with and sending a signal by mistake, thereby improving the redundant reliability of signal detection.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ship lift cabin anti-collision latch cylinder signal detection device, characterized in that: It includes a mounting bracket, a fixing part, a guiding part, a gas spring, a slider and a detecting part; the fixing part and the guiding part are respectively arranged on the mounting bracket, the fixing part is used to fix the gas spring, the slider is arranged on the telescopic rod of the gas spring, the detecting part is respectively arranged on both sides of the slider, and a triggering member is arranged on the slider; the detecting part detects the upper and lower limit positions of the slider at a predetermined position, and the guiding part is used to guide the slider; the telescopic rod of the gas spring conflicts with the piston rod of the latch cylinder.

2. According to claim 1, a ship lift cabin anti-collision latch oil cylinder signal detection device is characterized in that: The mounting bracket includes a supporting vertical plate, a supporting horizontal plate and reinforcing ribs; the supporting horizontal plate is vertically arranged with respect to the supporting vertical plate, the supporting horizontal plate is arranged at the lower end position of the side wall of the supporting vertical plate, and the reinforcing ribs are arranged between the supporting horizontal plate and the supporting vertical plate.

3. According to claim 2, a ship lift cabin anti-collision latch oil cylinder signal detection device is characterized in that: The fixing part includes a fixed inner plate and a fixed outer plate; a connecting hole is provided on the end surface of the fixed inner plate close to the supporting vertical plate, and the fixed inner plate is fixed to the supporting vertical plate by countersunk bolts; connecting holes are provided on the contact surface between the fixed inner plate and the fixed outer plate, and on the contact surface between the fixed outer plate and the fixed inner plate, and the fixed inner plate and the fixed outer plate are connected as a whole by countersunk bolts.

4. A ship lift cabin anti-collision latch cylinder signal detection device according to claim 3, characterized in that: The fixed outer plate is arranged at the center position of the fixed inner plate; a first arc-shaped through groove is arranged on the fixed inner plate; a second arc-shaped through groove matching the first arc-shaped through groove is arranged at a corresponding position on the fixed outer plate, and the size of the circular through groove formed by the combination of the first arc-shaped through groove and the second arc-shaped through groove is adapted to the circular base of the gas spring, and the base of the gas spring is arranged in the circular through groove formed by the first arc-shaped through groove and the second arc-shaped through groove.

5. A ship lift cabin anti-collision latch oil cylinder signal detection device according to claim 4, characterized in that: The guide portion includes a fixing plate and a trapezoidal groove; the fixing plate is fixed on the supporting vertical plate by countersunk bolts, and the trapezoidal groove is arranged at the center position of the fixing plate, and the arrangement of the trapezoidal groove matches the position of the telescopic rod of the gas spring.

6. A ship lift cabin anti-collision latch oil cylinder signal detection device according to claim 5, characterized in that: The slider includes a trapezoidal body and a square body; the trapezoidal body and the square body are integrally formed, the size structure of the trapezoidal body is adapted to the trapezoidal groove, a penetrating circular countersunk hole is provided on the square body, and threaded holes connected to the trigger member are provided on both sides of the square body; the telescopic rod is inserted into the circular countersunk hole.

7. A ship lift cabin anti-collision latch cylinder signal detection device according to claim 6, characterized in that: The triggering member is a first sensing plate and a second sensing plate, both of which are L-shaped metal plates, and both of which include a connecting vertical plate and a sensing horizontal plate; the connecting vertical plate and the sensing horizontal plate are vertically arranged, and a through hole is arranged on the connecting vertical plate, and the connecting vertical plate is connected to the side wall of the square body by bolts.

8. The signal detection device for the anti-collision latch cylinder of a ship lift cabin according to claim 7, characterized in that: The first sensing plate and the second sensing plate are respectively arranged at two sides of the square body, and the first sensing plate and the second sensing plate are arranged in opposite directions.

9. A ship lift cabin anti-collision latch oil cylinder signal detection device according to claim 8, characterized in that: The sensing part includes a first sensor mounting plate and a second sensor mounting plate; the first sensor mounting plate has the same structure as the second sensor mounting plate, the first sensor mounting plate is T-shaped as a whole, the tail of the first sensor mounting plate is bent at a right angle and is provided with a threaded hole for mounting the first sensor mounting plate on a supporting vertical plate; two sensors are arranged in parallel on the first sensor mounting plate, and the directions of the sensors match the positions of the first sensing plate.

10. A detection method for the anti-collision latch cylinder signal detection device for the ship lift cabin according to any one of claims 1 to 9, characterized in that: when the truss needs to be lifted alone and the wire rope crosses the cabin water area to play an anti-collision protection role, the piston rod of the latch cylinder retreats upward, the gas spring pushes the slider upward under the action of its own elastic recovery, and the slider pushes the telescopic rod upward; when the first sensor sensing piece on the right side approaches the sensor on the right side and makes the sensor send a retraction signal, the system controls the piston rod of the latch cylinder to stop retraction, at which time, the latch cylinder retreats into place, the latch cylinder is separated from the wire rope hanging head, and the truss can be lifted alone without the wire rope; When the truss needs to be lifted with the wire rope, the piston rod of the latch cylinder is pushed downward, the piston rod pushes the telescopic rod downward, the telescopic rod pushes the slider downward, and the slider compresses the gas spring downward; when the second sensor sensing piece on the left side approaches the sensor on the left side and the sensor sends a push-in-place signal, the system controls the piston rod of the latch cylinder to stop pushing out, at this time, the latch cylinder is pushed in place, the latch cylinder is connected to the wire rope head, and the truss can be lifted with the wire rope through the latch cylinder connected to the wire rope head; When the latch cylinder is pushed out, the piston rod pushes the telescopic rod and the slider downward to compress the gas spring; when the latch cylinder is retracted, the gas spring pushes the slider and the telescopic rod upward to reset under its own elastic force. In this way, the slider can accurately track the position of the latch cylinder piston rod, thereby achieving the purpose of detecting the position of the latch cylinder piston rod by detecting the position of the slider.

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