A marine brake-type hydraulic cylinder

Abstract

The present invention discloses a marine brake-type hydraulic cylinder, which includes a cylinder block. A piston rod is slidably connected inside the cylinder block, and the top of the piston rod extends to the outside of the cylinder block. An anti-folding component is arranged at the top of the cylinder block. The anti-folding component includes a sleeve cover, which is sleeved on the top of the cylinder block. The top of the piston rod penetrates through the inside of the sleeve cover. Two limit members are symmetrically and fixedly connected to the outer side wall of the sleeve cover. A limit rod passes through the inside of the two limit members. The top of the limit rod is fixedly connected with a placement box, and the bottom of the placement box is movably connected to the top end of the piston rod. A limit component is arranged at the top of the placement box. The limit component includes a cross-shaped placement rack and brackets. The cross-shaped placement rack is slidably connected inside the placement box, and the brackets are symmetrically arranged. The two brackets are respectively fixedly connected to both sides of the placement box. The present invention realizes the function of preventing the hydraulic cylinder from being damaged by folding.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic cylinders, and more specifically, it relates to a marine brake type hydraulic cylinder. Background Art

[0002] An anchor is the main component of a ship's mooring equipment. It is connected to the ship by a chain and can be thrown to the bottom of the water to make the ship stable. An anchor winch is a machine on the ship used to retrieve and release the anchor and the anchor chain. It can be divided into: manual, electric, and hydraulic. When braking the anchor chain by a hydraulic cylinder to stop the ship, since the force direction of the anchor chain is inconsistent with that of the hydraulic cylinder during braking, that is, the force is relatively large when the anchor chain is released or retrieved, it is easy to cause damage to the hydraulic cylinder, greatly reducing the service life of the hydraulic cylinder. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a marine brake type hydraulic cylinder.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A marine brake type hydraulic cylinder, including a cylinder block, a piston rod is slidably connected inside the cylinder block, the top of the piston rod extends to the outside of the cylinder block, an anti-folding component is arranged at the top of the cylinder block, the anti-folding component includes a sleeve cover, the sleeve cover is sleeved on the top of the cylinder block, the top of the piston rod penetrates through the inside of the sleeve cover, two limiting members are symmetrically and fixedly connected to the outer side wall of the sleeve cover, a limiting rod passes through the inside of the two limiting members, the top of the limiting rod is fixedly connected with a placement box, and the bottom of the placement box is movably connected to the top end of the piston rod;

[0005] A limiting component is arranged at the top of the placement box.

[0006] The present invention is further arranged as follows: A pipe body is communicated with the bottom of the placement box, the bottom of the pipe body is inserted into the inside of the piston rod, and the bottom of the pipe body is movably connected to the inner wall of the piston rod. Two insertion rods are symmetrically hinged to the outer side wall of the pipe body, a positioning strip is installed at the top of the piston rod, and the bottom end of the insertion rod is inserted into the inside of the positioning strip.

[0007] The present invention is further arranged as follows: A reed is installed on one side of the insertion rod and the bottom of the placement box.

[0008] The present invention is further arranged as follows: A base is fixedly connected to the bottom of the cylinder block, and an annular groove is opened at the top of the base.

[0009] The present invention is further arranged as follows: A sealing member is fixedly connected to the inner wall of the sleeve cover.

[0010] The present invention is further configured such that: the limiting component includes a cross-shaped placement rack and a bracket. The cross-shaped placement rack is slidably connected to the inside of the placement box. The brackets are symmetrically arranged, and the two brackets are respectively fixedly connected to both sides of the placement box. A rod body is fixedly connected to the inside of the bracket. Two clamping blocks are fixedly connected to the top of the cross-shaped placement rack, and the two clamping blocks are respectively slidably connected to the outer side walls of the two rod bodies.

[0011] The present invention is further configured such that: springs are fixedly connected to both sides of the clamping block. The ends of the springs away from the clamping block are fixedly connected to the inner wall of the bracket, and the springs are sleeved on the outer side wall of the rod body.

[0012] The present invention is further configured such that: first water outlet holes are uniformly formed in the inner side wall of the placement box, and second water outlet holes are uniformly formed in the inner bottom wall of the placement box.

[0013] The present invention is further configured such that: a baffle is fixedly connected to the bottom of the piston rod. A water inlet pipe is communicated with the bottom of the pipe body. The bottom end of the water inlet pipe penetrates through the top of the baffle and the top of the base and extends to the outside of the cylinder body.

[0014] The present invention is further configured such that: a first oil hole and a second oil hole are communicated with the outer side wall of the cylinder body. The first oil hole is located above the baffle, and the second oil hole is located below the baffle.

[0015] The advantages of the present invention are as follows: by providing a sleeve cover, the limiting rod is inserted into the limiting member to support the piston rod of the hydraulic cylinder. The limiting rod is used to enhance the support strength of the hydraulic cylinder, avoid the hydraulic cylinder from being damaged, and greatly improve the service life of the hydraulic cylinder. The placement box and the cross-shaped placement rack can be adaptively adjusted according to the transmission direction and angle of the anchor chain. The cross-shaped placement rack plays a role in guiding and buffering the anchor chain, thereby controlling the transmission speed of the anchor chain. When the cross-shaped placement rack is displaced under the influence of the anchor chain transmission, the water in the placement box is discharged through the exposed first water outlet holes and second water outlet holes to clean the green algae and impurities on the surface of the anchor chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the bottom view structure of the present invention;

[0018] Figure 3 is Figure 2 the enlarged structure schematic diagram of area A in

[0019] Figure 4 is a schematic diagram of the exploded structure of the placement box and the cross-shaped placement rack of the present invention;

[0020] Figure 5Schematic diagram of the connection structure between the cylinder block and the sleeve cover of the present invention;

[0021] Figure 6 Front view structure schematic diagram of the present invention;

[0022] Figure 7 is Figure 6 Cross-sectional view taken along the A-A direction;

[0023] In the figure: 1, cylinder block; 2, piston rod; 3, anti-bending component; 31, sleeve cover; 32, limiting member; 33, limiting rod; 34, placement box; 35, pipe body; 36, insertion rod; 37, positioning strip; 38, reed; 39, annular groove; 391, seal; 4, limiting component; 41, cross-shaped placement rack; 42, rod body; 421, support; 43, spring; 44, clamping block; 45, first water outlet hole; 46, second water outlet hole; 47, water inlet pipe; 48, baffle; 5, base; 6, first oil hole; 7, second oil hole. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0026] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are generally in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms are not used to limit the present invention.

[0027] Please refer to Figures 1-7 , the present invention provides the following solutions:

[0028] A marine brake-type hydraulic cylinder includes a cylinder block 1, a piston rod 2 is slidably connected inside the cylinder block 1, the top of the piston rod 2 extends to the outside of the cylinder block 1, the outer side wall of the cylinder block 1 is communicated with a first oil hole 6 and a second oil hole 7, the first oil hole 6 is located above the bottom end of the piston rod 2, the second oil hole 7 is located below the bottom end of the piston rod 2, the first oil hole 6 and the second oil hole 7 are used to fill hydraulic oil into the cylinder block 1. When the second oil hole 7 injects oil into the cylinder block 1, the hydraulic oil at the bottom end of the piston rod 2 increases, that is, the piston rod 2 is pushed out of the cylinder block 1. When the first oil hole 6 injects oil into the cylinder block 1, the hydraulic oil above the bottom end of the piston rod 2 increases, that is, the piston rod 2 contracts into the cylinder block 1;

[0029] A folding prevention component 3 is arranged at the top of the cylinder block 1. The folding prevention component 3 includes a sleeve cover 31 which is sleeved on the top of the cylinder block 1. The top of the piston rod 2 penetrates through the inside of the sleeve cover 31. A sealing member 391 is fixedly connected to the inner wall of the sleeve cover 31. When the piston rod 2 makes a telescopic movement, the sealing member 391 is used to fill the gap between the outer wall of the piston rod 2 and the inner wall of the sleeve cover 31, so as to avoid the leakage of the hydraulic oil in the cylinder block 1. Two limiting members 32 are symmetrically and fixedly connected to the outer side wall of the sleeve cover 31. A limiting rod 33 penetrates through the two limiting members 32. The top of the limiting rod 33 is fixedly connected with a placement box 34. A pipe body 35 communicates with the bottom of the placement box 34. The bottom of the pipe body 35 is inserted into the inside of the piston rod 2, and the bottom of the pipe body 35 is movably connected with the inner wall of the piston rod 2. The placement box 34 is used to place the anchor chain. When the piston rod 2 expands and contracts, the piston rod 2 pushes the pipe body 35 and the placement box 34 to move up and down. The placement box 34 drives the limiting rod 33 to slide inside the limiting member 32, and during the movement of the piston rod 2, the limiting rod 33 always slides inside the limiting member 32, so as to support the piston rod 2 and avoid the piston rod 2 from being damaged by folding;

[0030] Moreover, the placement box 34 is movably connected to the top of the piston rod 2 through the pipe body 35. By pushing the placement box 34, the pipe body 35 is driven to rotate on the top of the piston rod 2, so as to adjust the angle of the placement box 34, so that the placement box 34 always keeps the same angle as the anchor chain;

[0031] The placement box 34 drives the two limiting rods 33 and the sleeve cover 31 to rotate. The limiting rods 33 and the sleeve cover 31 cooperate to make the placement box 34 always keep a horizontal state during the twisting process;

[0032] A base 5 is fixedly connected to the bottom of the cylinder block 1. An annular groove 39 is formed in the top of the base 5. When the piston rod 2 is fully retracted, the bottom of the limiting rod 33 is inserted into the inside of the annular groove 39, so as to fix the angle of the placement box 34 and make the placement box 34 keep still;

[0033] Two inserting rods 36 are symmetrically hinged to the outer side wall of the pipe body 35. A positioning strip 37 is installed on the top of the piston rod 2. The bottom end of the inserting rod 36 is inserted into the inside of the positioning strip 37. A reed 38 is installed on one side of the inserting rod 36 and the bottom of the placement box 34. If the angle of the anchor chain remains unchanged during the transmission process, the elastic force of the reed 38 drives the inserting rod 36 to insert into the teeth of the positioning strip 37. If the angle of the anchor chain changes, the pipe body 35 drives the inserting rod 36 to rotate, and the inserting rod 36 slides on the positioning strip 37, so as to adjust the angle of the placement box 34;

[0034] A limiting component 4 is provided at the top of the placement box 34. The limiting component 4 includes a cross-shaped placement rack 41 and a bracket 421. A groove adapted to the cross-shaped placement rack 41 is formed inside the placement box 34. The cross-shaped placement rack 41 is slidably connected in the groove. The anchor chain is placed in the cross-shaped placement rack 41. When the anchor chain moves left and right inside the cross-shaped placement rack 41, the cross-shaped placement rack 41 slides in the placement box 34 under the influence of the anchor chain drive. And when the anchor chain slides inside the cross-shaped placement rack 41, the cross-shaped placement rack 41 plays a buffering role on the anchor chain, thereby controlling the transmission speed of the anchor chain. The brackets 421 are symmetrically arranged. The two brackets 421 are respectively fixedly connected to both sides of the placement box 34. A rod body 42 is fixedly connected inside the bracket 421. Two clamping blocks 44 are fixedly connected to the top of the cross-shaped placement rack 41. The two clamping blocks 44 are respectively slidably connected to the outer side walls of the two rod bodies 42. When the cross-shaped placement rack 41 slides inside the placement box 34, the cross-shaped placement rack 41 drives the clamping blocks 44 to slide on the outer side walls of the rod bodies 42, thereby playing a guiding role on the cross-shaped placement rack 41;

[0035] Both sides of the clamping block 44 are fixedly connected with springs 43. The ends of the springs 43 far away from the clamping block 44 are fixedly connected to the inner wall of the bracket 421. The springs 43 are sleeved on the outer side walls of the rod bodies 42. The clamping block 44 slides on the outer side walls of the rod bodies 42, and the clamping block 44 squeezes the springs 43. That is, when the cross-shaped placement rack 41 slides under the influence of the anchor chain drive, the springs 43 adjust the compression degree according to the sliding distance of the cross-shaped placement rack 41. When the anchor chain is separated from the cross-shaped placement rack 41, the elastic force of the springs 43 will push the clamping block 44 and the cross-shaped placement rack 41 to reset;

[0036] The bottom of the piston rod 2 is fixedly connected with a baffle 48. The bottom of the pipe body 35 is communicated with a water inlet pipe 47. The bottom end of the water inlet pipe 47 penetrates through the top of the baffle 48 and the top of the base 5 and extends to the outside of the cylinder block 1. The inner side wall of the placement box 34 is uniformly provided with first water outlet holes 45. The inner bottom wall of the placement box 34 is uniformly provided with second water outlet holes 46. The bottom end of the water inlet pipe 47 is connected to an external water supply device. The external water supply device conveys water through the water inlet pipe 47 and the pipe body 35 into the placement box 34, and the water accumulates inside the placement box 34;

[0037] When the cross-shaped placement rack 41 is in the initial state, the first water outlet holes 45 and the second water outlet holes 46 are in a blocked state. When the cross-shaped placement rack 41 is displaced under the influence of the anchor chain drive, a plurality of first water outlet holes 45 and second water outlet holes 46 are gradually exposed, and the water inside the placement box 34 is discharged through the exposed first water outlet holes 45 and second water outlet holes 46, thereby cleaning the green algae and impurities on the surface of the anchor chain;

[0038] Embodiment

[0039] Specifically, the staff installs the cylinder block 1 at the working location, and the anchor chain is placed in the cross-shaped placement rack 41. The first oil hole 6 and the second oil hole 7 are used to fill the cylinder block 1 with hydraulic oil. When the second oil hole 7 injects oil into the cylinder block 1, the hydraulic oil at the bottom end of the piston rod 2 increases, which pushes the piston rod 2 to extend from the cylinder block 1. When the first oil hole 6 injects oil into the cylinder block 1, the hydraulic oil above the bottom end of the piston rod 2 increases, which causes the piston rod 2 to contract into the cylinder block 1;

[0040] When the piston rod 2 makes a telescopic movement, the seal 391 is used to fill the gap between the outer wall of the piston rod 2 and the inner wall of the sleeve cover 31 to prevent the hydraulic oil in the cylinder block 1 from leaking. When the piston rod 2 expands and contracts, it pushes the pipe body 35 and the placement box 34 to move up and down. The placement box 34 drives the limit rod 33 to slide inside the limiting member 32. During the movement of the piston rod 2, the limit rod 33 always slides inside the limiting member 32, thereby supporting the piston rod 2 and preventing the piston rod 2 from being damaged;

[0041] The anchor chain is placed inside the cross-shaped placement rack 41 and drives inside the cross-shaped placement rack 41. If the angle of the anchor chain remains unchanged during transmission, the elastic force of the reed 38 drives the insertion rod 36 to insert into the teeth of the positioning strip 37. If the angle of the anchor chain changes, the pipe body 35 drives the insertion rod 36 to rotate, and the insertion rod 36 slides on the positioning strip 37, thereby adjusting the angle of the placement box 34;

[0042] When the anchor chain drives inside the cross-shaped placement rack 41, the cross-shaped placement rack 41 slides along the transmission direction of the anchor chain inside the placement box 34 under the influence of the anchor chain drive. When the anchor chain slides inside the cross-shaped placement rack 41, the cross-shaped placement rack 41 plays a buffering role for the anchor chain, thereby controlling the transmission speed of the anchor chain. And the cross-shaped placement rack 41 drives the block 44 to slide on the outer side wall of the rod body 42, thereby guiding the cross-shaped placement rack 41;

[0043] The block 44 slides on the outer side wall of the rod body 42, and the block 44 squeezes the spring 43. That is, when the cross-shaped placement rack 41 slides under the influence of the anchor chain drive, the spring 43 adjusts the compression degree according to the sliding distance of the cross-shaped placement rack 41. When the anchor chain is separated from the cross-shaped placement rack 41, the elastic force of the spring 43 will push the block 44 and the cross-shaped placement rack 41 to reset;

[0044] The bottom end of the water inlet pipe 47 is connected to an external water supply device. The external water supply device transports the water body through the water inlet pipe 47 and the pipe body 35 to the inside of the placement box 34, and the water body accumulates inside the placement box 34;

[0045] When the cross placement frame 41 is in the initial state, the first water outlet hole 45 and the second water outlet hole 46 are in a blocked state. When the cross placement frame 41 is displaced under the influence of the anchor chain drive, a plurality of first water outlet holes 45 and second water outlet holes 46 are gradually exposed, and the water in the placement box 34 is discharged through the first water outlet holes 45 and the second water outlet holes 46 exposed to the outside, thereby cleaning the green algae and impurities on the surface of the anchor chain.

[0046] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first", "second", etc. in the description, claims, and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0049] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0050] The above is only the preferred implementation manner of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the idea of the present invention shall fall within the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A marine brake - type hydraulic cylinder, comprising a cylinder block (1), wherein a piston rod (2) is slidably connected inside the cylinder block (1), and the top of the piston rod (2) extends to the outside of the cylinder block (1), characterized in that: A folding prevention component (3) is provided at the top of the cylinder block (1). The folding prevention component (3) includes a sleeve cover (31). The sleeve cover (31) is sleeved on the top of the cylinder block (1). The top of the piston rod (2) penetrates through the inside of the sleeve cover (31). Two limiting members (32) are symmetrically and fixedly connected to the outer side wall of the sleeve cover (31). A limiting rod (33) is inserted through the two limiting members (32). The top of the limiting rod (33) is fixedly connected to a placement box (34). The bottom of the placement box (34) is movably connected to the top end of the piston rod (2); A limiting component (4) is provided at the top of the placement box (34); A pipe body (35) is communicated with the bottom of the placement box (34). The bottom of the pipe body (35) is inserted into the inside of the piston rod (2), and the bottom of the pipe body (35) is movably connected to the inner wall of the piston rod (2). Two insertion rods (36) are symmetrically hinged to the outer side wall of the pipe body (35). A positioning strip (37) is installed at the top of the piston rod (2). The bottom end of the insertion rod (36) is inserted into the inside of the positioning strip (37); A reed (38) is installed on one side of the insertion rod (36) and the bottom of the placement box (34); A base (5) is fixedly connected to the bottom of the cylinder block (1). An annular groove (39) is opened at the top of the base (5); The limiting component (4) includes a cross-shaped placement rack (41) and brackets (421). The cross-shaped placement rack (41) is slidably connected to the inside of the placement box (34). The brackets (421) are symmetrically arranged. The two brackets (421) are respectively fixedly connected to both sides of the placement box (34). A rod body (42) is fixedly connected to the inside of the bracket (421). Two clamping blocks (44) are fixedly connected to the top of the cross-shaped placement rack (41). The two clamping blocks (44) are respectively slidably connected to the outer side walls of the two rod bodies (42).

2. The marine brake - type hydraulic cylinder according to claim 1, characterized in that: A sealing member (391) is fixedly connected to the inner wall of the sleeve cover (31).

3. The marine brake - type hydraulic cylinder according to claim 1, characterized in that: Springs (43) are fixedly connected to both sides of the clamping block (44). The ends of the springs (43) far away from the clamping block (44) are fixedly connected to the inner walls of the brackets (421). The springs (43) are sleeved on the outer side walls of the rod bodies (42).

4. The marine brake - type hydraulic cylinder according to claim 3, characterized in that: First water outlet holes (45) are uniformly opened on the inner side wall of the placement box (34). Second water outlet holes (46) are uniformly opened on the inner bottom wall of the placement box (34).

5. The marine brake - type hydraulic cylinder according to claim 1, characterized in that: A baffle (48) is fixedly connected to the bottom of the piston rod (2). A water inlet pipe (47) is communicated with the bottom of the pipe body (35). The bottom end of the water inlet pipe (47) penetrates through the top of the baffle (48) and the top of the base (5) and extends to the outside of the cylinder block (1).

6. The marine brake - type hydraulic cylinder according to claim 5, characterized in that: A first oil hole (6) and a second oil hole (7) are communicated with the outer side wall of the cylinder block (1). The first oil hole (6) is located above the baffle (48). The second oil hole (7) is located below the baffle (48).

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