Anti-fouling curtain lifting device

Abstract

The application discloses a kind of anti-fouling curtain lifting devices, including curtain body and at least two lifting assemblies along the length direction of curtain body interval arrangement;Lifting assembly includes outer circular tube, the intermediate circular tube of being arranged in outer circular tube and can slide along the axis direction of outer circular tube, the inner circular steel of being arranged in intermediate circular tube and can slide along the axis direction of intermediate circular tube, the bottom end of inner circular steel is fixed with the end of curtain body, the top end of outer circular tube is fixed with the beginning of curtain body;The curtain lifting device further includes for driving inner circular steel and intermediate circular tube sliding to the lifting assembly of outer circular tube inside.By setting lifting assembly to curtain body is hauled and fixed, replace the mode of traction fixed with the previous drag chain, overall structure is simple and compact, convenient and fast to use, solve the problem of previous structure strength lower, inconvenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of marine equipment, in particular to a pollution-preventing curtain lifting device. BACKGROUND

[0002] During the operation of a ship, especially dredging, sand pumping and piling, water pollution will be caused to the surrounding water area. In order to protect the environment and prevent the leakage of pollutants, a pollution-preventing curtain is usually arranged around the operation area. However, the conventional pollution-preventing curtain device has the problems of instability in fixing and lifting, complicated operation and the like. Referring to the patent document with the application number CN2023108528861, a pollution-preventing structure for DCM pile ship construction is disclosed, which comprises a curtain, a counterweight chain connected to the lower end of the curtain along the transverse development direction of the curtain, the counterweight chain comprising a plurality of chain unit segments, a U-shaped pipe structure connected between adjacent chain unit segments, a flexible rope arranged in the U-shaped pipe structure, one end of the flexible rope being wound on a flexible rope winding and unwinding device one, the other end of the flexible rope being wound on a flexible rope winding and unwinding device two, and a rigid member hung between adjacent flexible ropes. The pollution-preventing structure uses the counterweight chain to pull the curtain, which will cause the curtain to swing easily, and has the problems of low structural strength and inconvenient use. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a pollution-preventing curtain lifting device which can solve the problem of low structural strength.

[0004] To solve the above technical problems, the present application discloses a pollution-preventing curtain lifting device, which comprises a curtain body and at least two lifting assemblies arranged at intervals along the length direction of the curtain body; the lifting assembly comprises an outer circular pipe, an intermediate circular pipe arranged in the outer circular pipe and axially slidable along the outer circular pipe, and an inner circular steel arranged in the intermediate circular pipe and axially slidable along the intermediate circular pipe, the bottom end of the inner circular steel being fixedly connected to the end of the curtain body, and the top end of the outer circular pipe being fixedly connected to the beginning of the curtain body; the curtain lifting device further comprises a lifting assembly for driving the inner circular steel and the intermediate circular pipe to slide into the outer circular pipe.

[0005] The lifting assembly comprises a hand-operated hoist, the hand-operated hoist comprises a telescopic steel wire rope, the top end of the inner circular steel is provided with a lifting ring, and the steel wire rope is fixedly connected to the lifting ring.

[0006] The bottom end of the inner circular steel is formed with a pointed end.

[0007] The bottom end of the outer circular pipe is fixedly connected with a first circular ring perpendicularly, the intermediate circular pipe is arranged in the first circular ring, the outer circumferential side of the intermediate circular pipe is fixedly connected with a first limiting ring located in the outer circular pipe, the inner diameter of the first circular ring is smaller than the outer diameter of the first limiting ring, and the outer diameter of the first limiting ring is smaller than the inner diameter of the outer circular pipe.

[0008] The bottom end face of the middle circular tube is vertically fixed to a second circular ring, and an inner circular steel is inserted into the second circular ring. The outer circumferential side of the inner circular steel is fixedly connected to a second limiting ring located inside the middle circular tube. The inner diameter of the second circular ring is smaller than the outer diameter of the second limiting ring, the outer diameter of the second limiting ring is smaller than the inner diameter of the middle circular tube, and the outer diameter of the second circular ring is equal to or greater than the outer diameter of the first circular ring.

[0009] The lower end of the outer circumferential side of the inner round steel is fixed with a third ring, the outer diameter of the third ring being equal to or greater than the outer diameter of the second ring.

[0010] Among them, the outer sides of the first ring, the second ring, and the third ring are all fixedly connected with eyelets for binding the curtain body.

[0011] The outer circular tube has a first lifting ring vertically fixed to its top surface, the middle circular tube has a second lifting ring vertically fixed to its top surface located inside the outer circular tube, and the inner circular steel has a lifting cover plate vertically fixed to its top surface. The inner diameter of the first lifting ring is smaller than the outer diameter of the second lifting ring, and the inner diameter of the second lifting ring is smaller than the outer diameter of the lifting cover plate.

[0012] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0013] (1) By setting up lifting components to pull and fix the curtain body, the previous method of using drag chains for pulling and fixing is replaced. The overall structure is simple and compact, and it is convenient and quick to use, solving the problems of low structural strength and inconvenience of use in the past.

[0014] (2) The inner round steel of the lifting component can use its own weight to unfold the curtain, replacing the previous mechanical drive method, saving energy and simplifying the operation process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the curtain lifting device in the retracted state in this invention;

[0017] Figure 2 This is a schematic diagram of the curtain lifting device in the extended state in this invention;

[0018] Figure 3 This is a schematic diagram of the lifting component in the retracted state in this invention;

[0019] Figure 4 A structure diagram of the lifting assembly in the stretched state according to the present application;

[0020] Figure 5 A structure diagram of the lifting assembly in the stretched state according to the present application; Figure 3 An enlarged view of A in FIG. 4;

[0021] Figure 6 A structure diagram of the lifting assembly in the stretched state according to the present application; Figure 3 An enlarged view of B in FIG. 4;

[0022] Figure 7 A structure diagram of the lifting assembly in the stretched state according to the present application; Figure 4 An enlarged view of C in FIG. 4;

[0023] Figure 8 A structure diagram of the lifting assembly in the stretched state according to the present application; Figure 4 An enlarged view of D in FIG. 4. DETAILED DESCRIPTION

[0024] In order to make the personnel in the art better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or server including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or server.

[0026] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor does it necessarily refer to a particular embodiment that is "preferred" over other embodiments. It will be explicitly understood by one of ordinary skill in the art that the embodiments described herein can be combined with other embodiments.

[0027] A specific embodiment of an anti-fouling curtain lifting device is disclosed in the present application, see Figure 1 and Figure 2The anti-pollution curtain lifting device comprises a curtain body 1 and three lifting assemblies 2 arranged at intervals along the length direction of the curtain body 1. It should be noted that the lifting assemblies 2 are used for pulling and fixing the curtain body 1, and the number of the lifting assemblies 2 can be selectively set according to actual needs, which can be two, four, five or the like.

[0028] As an improvement, in combination Figure 3 and Figure 4 , the lifting assembly 2 comprises an outer circular pipe 21, an intermediate circular pipe 22 arranged in the outer circular pipe 21 and axially slidable along the outer circular pipe 21, and an inner circular steel 23 arranged in the intermediate circular pipe 22 and axially slidable along the intermediate circular pipe 22. The bottom end of the inner circular steel 23 is fixedly connected with the end of the curtain body 1, and the top end of the outer circular pipe 21 is fixedly connected with the beginning end of the curtain body 1. The outer circular pipe 21, the intermediate circular pipe 22 and the inner circular steel 23 form a telescopic structure, which can stretch and contract the curtain body 1, thereby improving the convenience of the curtain lifting device.

[0029] As a preferred solution, the bottom end of the inner circular steel 23 is formed with a pointed end 24. The inner circular steel 23 falls to the riverbed by its own gravity, and the pointed end 24 is in a conical structure, which can be inserted into the riverbed, so that the curtain body 1 below is fixed and cannot swing due to the influence of wind and waves, thereby affecting the engineering operation. In addition, the anti-pollution curtain can be covered on the riverbed as much as possible, the anti-pollution effect is better, and no additional power equipment is needed, which not only simplifies the operation process, but also makes the device applicable to different depths of water.

[0030] In combination Figure 1 and Figure 5 , the curtain lifting device further comprises a lifting assembly for driving the inner circular steel 23 and the intermediate circular pipe 22 to slide into the outer circular pipe 21. Optionally, the lifting assembly comprises a manual hoist 51. The manual hoist 51 is a conventional manual hoist 51, which is simple in equipment, easy to maintain and convenient to operate. The manual hoist 51 comprises a telescopic steel wire rope 52, which is wound on the manual hoist 51. The top end of the inner circular steel 23 is provided with a lifting ring 25, and the steel wire rope 52 is fixedly connected with the lifting ring 25. Specifically, the top end surface of the outer circular pipe 21 is vertically fixedly connected with a first lifting ring 41, the top end surface of the intermediate circular pipe 22 is vertically fixedly connected with a second lifting ring 42 located inside the outer circular pipe 21, and the top end surface of the inner circular steel 23 is vertically fixedly connected with a lifting cover plate 43. The inner diameter of the first lifting ring 41 is smaller than the outer diameter of the second lifting ring 42, and the inner diameter of the second lifting ring 42 is smaller than the outer diameter of the lifting cover plate 43.

[0031] When the manual hoist 51 is lifted, the lifting ring 25 of the inner round steel 23 is connected with the wire rope 52, the manual hoist 51 drives the wire rope 52 to retract, and as the wire rope 52 is lifted, the inner round steel 23 is lifted, and after the second lifting ring 42 of the middle round pipe 22 contacts the cover plate 43, as the wire rope 52 is lifted, the middle round pipe 22 is also lifted together with the inner round steel 23, and when the second lifting ring 42 of the middle round pipe 22 contacts the first lifting ring 41 of the outer round pipe 21, the lifting process is completed, and the contraction of the entire curtain body 1 is completed.

[0032] In order to avoid the inner round steel 23 and the middle round pipe 22 from falling out of the outer round pipe 21 during the falling process, in combination Figures 6 to 8 , the bottom end surface of the outer round pipe 21 is vertically fixed with a first circular ring 31, the middle round pipe 22 is arranged in the first circular ring 31, the outer circumferential surface of the middle round pipe 22 is fixedly connected with a first limiting ring 61 located in the inner part of the outer round pipe 21, the inner diameter of the first circular ring 31 is smaller than the outer diameter of the first limiting ring 61, and the outer diameter of the first limiting ring 61 is smaller than the inner diameter of the outer round pipe 21. The bottom end surface of the middle round pipe 22 is vertically fixed with a second circular ring 32, the inner round steel 23 is arranged in the second circular ring 32, the outer circumferential surface of the inner round steel 23 is fixedly connected with a second limiting ring 62 located in the inner part of the middle round pipe 22, the inner diameter of the second circular ring 32 is smaller than the outer diameter of the second limiting ring 62, the outer diameter of the second limiting ring 62 is smaller than the inner diameter of the middle round pipe 22, and the outer diameter of the second circular ring 32 is equal to or greater than the outer diameter of the first circular ring 31. The outer circumferential surface of the inner round steel 23 is fixedly connected with a third circular ring 33, and the outer diameter of the third circular ring 33 is equal to or greater than the outer diameter of the second circular ring 32.

[0033] During the extension process of the lifting assembly 2, the middle round pipe 22 and the inner round steel 23 extend downward due to the action of gravity, when the first limiting ring 61 on the middle round pipe 22 contacts the first circular ring 31 of the outer round pipe 21, the middle round pipe 22 reaches the limit position, and the inner round steel 23 continues to descend, when the second limiting ring 62 of the inner round steel 23 contacts the second circular ring 32 of the middle round pipe 22, the inner round steel 23 reaches the limit position, and at this time, the device reaches the maximum depth position.

[0034] It should be noted that the number of the first limiting ring 61 and the second limiting ring 62 can be selected and arranged according to actual needs, and when two are arranged, even if one is damaged, the other can also serve as a backup.

[0035] In order to further fix the curtain body 1, the bottom end of the middle round pipe 22 can be connected and fixed with the middle part of the curtain body 1, specifically, the outer side surface of the first circular ring 31, the outer side surface of the second circular ring 32 and the outer side surface of the third circular ring 33 are all fixedly connected with eye rings 34 for binding the curtain body 1.

[0036] The anti-fouling curtain lifting device of the embodiment is used for pulling and fixing the curtain body 1 through the lifting assembly 2, replaces the previous pulling and fixing mode by using a drag chain, has a simple and compact overall structure, is convenient and fast to use, and solves the problems of low structural strength and inconvenient use. The inner round steel 23 of the lifting assembly 2 can use its own gravity to unfold the curtain, replaces the previous mechanical driving mode, saves energy consumption, and simplifies the operation process.

[0037] Finally, it should be noted that: the anti-fouling curtain lifting device disclosed in the embodiment of the application is only a preferred embodiment of the application, and is used to illustrate the technical solutions of the application, but not to limit it; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. An anti-fouling curtain hoist characterized by, The curtain lifting device comprises a curtain body and at least two lifting assemblies arranged along the length direction of the curtain body. The lifting assembly comprises an outer circular tube, an intermediate circular tube arranged in the outer circular tube and axially slidable along the outer circular tube, and an inner circular steel arranged in the intermediate circular tube and axially slidable along the intermediate circular tube, the bottom end of the inner circular steel is fixedly connected with the end of the curtain body, and the top end of the outer circular tube is fixedly connected with the beginning end of the curtain body. The curtain lifting device further comprises a lifting assembly for driving the inner circular steel and the intermediate circular tube to slide into the outer circular tube. The bottom end surface of the outer circular tube is vertically fixedly connected with a first circular ring, the intermediate circular tube is arranged in the first circular ring, the outer circumferential surface of the intermediate circular tube is fixedly connected with a first limiting ring located in the outer circular tube, the inner diameter of the first circular ring is smaller than the outer diameter of the first limiting ring, and the outer diameter of the first limiting ring is smaller than the inner diameter of the outer circular tube. The bottom end surface of the intermediate circular tube is vertically fixedly connected with a second circular ring, the inner circular steel is arranged in the second circular ring, the outer circumferential surface of the inner circular steel is fixedly connected with a second limiting ring located in the intermediate circular tube, the inner diameter of the second circular ring is smaller than the outer diameter of the second limiting ring, the outer diameter of the second limiting ring is smaller than the inner diameter of the intermediate circular tube, and the outer diameter of the second circular ring is equal to or greater than the outer diameter of the first circular ring. The top end surface of the intermediate circular tube is vertically fixedly connected with a second lifting ring located in the outer circular tube, and the top end surface of the inner circular steel is vertically fixedly connected with a lifting cover plate, the inner diameter of the first lifting ring is smaller than the outer diameter of the second lifting ring, and the inner diameter of the second lifting ring is smaller than the outer diameter of the lifting cover plate.

2. A dirt resistant curtain lifting device as claimed in claim 1, wherein, The lifting assembly comprises a manual hoist, the top end portion of the inner circular steel is provided with a lifting ring, and the steel wire rope is fixedly connected with the lifting ring.

3. A dirt resistant curtain lifting arrangement according to claim 1 or 2, characterised in that, The bottom end of the inner circular steel is formed with a pointed end portion.

4. A dirt resistant curtain lifting device as claimed in claim 1, wherein, The outer circumferential surface of the inner circular steel is fixedly connected with a third circular ring, and the outer diameter of the third circular ring is equal to or greater than the outer diameter of the second circular ring.

5. A dirt resistant curtain lifting arrangement according to claim 4, wherein, The outer side surface of the first circular ring, the outer side surface of the second circular ring, and the outer side surface of the third circular ring are all fixedly connected with eye rings for binding the curtain body.

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