Lifting fin sea water sampling pipe locking structure

Abstract

The present application relates to the technical field of ship structure, and discloses a lifting fin sea water sampling pipe locking structure, which comprises a fin plate, a sleeve pipe, a sampling pipe and a fastener, the fin plate is provided with a sampling hole penetrating in and out, the sleeve pipe is arranged in the sampling hole, the sleeve pipe is fixedly assembled with the fin plate, the sampling pipe is arranged in the sleeve pipe, the fastener is arranged on the outside of the fin plate, and the fastener is fixedly connected with the sampling pipe and the sleeve pipe; the locking structure further comprises a protection pipe and a support, the support is fixedly arranged on the fin plate, and the protection pipe is sleeved on the outside of the sampling pipe and fixedly assembled with the support. The joint is not needed to be connected on the sampling pipe first, and then the joint is arranged through the fin plate, the pipe diameter of the end is unchanged, and pumping is facilitated. The sampling pipe directly penetrates through the fin plate and extends to the outside of the fin plate, the sampling pipe is not provided with a joint on the inside of the fin plate, water in the fin plate cannot be mixed into the sampling pipe, and the purity of the water quality is ensured. When the sampling pipe is replaced, the fastener on the outside of the fin plate is only needed to be loosened, and then the sampling pipe can be drawn out from the sleeve pipe and the protection pipe, so that replacement and disassembly are simple and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship body structure, in particular to a lifting fin sea water sampling pipe locking structure. BACKGROUND

[0002] In marine scientific research, when super-clean seawater is extracted by a lifting fin for water quality analysis, it is necessary to ensure that the seawater is not polluted by the water taking tool, so the water taking hose is usually a food-grade Teflon hose, and the Teflon hose is then fixed on the fin plate. The traditional fixing method of the water taking hose and the fin plate is to use a clamp to fix the water taking hose on a polytetrafluoroethylene joint with a tower joint at one end and a threaded joint at the other end, then pass the polytetrafluoroethylene joint through the fin plate, and fix it on the fin plate by using a nut.

[0003] A lifting fin plate with a sea water sampling pipe is disclosed in a patent with the authorization announcement No. CN206307239U, which is fixed in the fin plate shaft of a ship by a lifting device, and further comprises a sea water sampling pipe, wherein the water inlet end of the sea water sampling pipe is fixed on the lifting fin plate; the lower end of the lifting fin plate is provided with a water inlet, and the water inlet cooperates with the water inlet end of the sea water sampling pipe; the water inlet is arranged at the lower end of the bow of the lifting fin plate, and the water inlet and the sea water sampling pipe are connected through a horn-shaped joint; the horn-shaped joint comprises a horn-shaped stainless steel support, a layer of PE isolation layer is arranged on the surface of the stainless steel support, and the horn-shaped joint further comprises a metal protection pipe at the end thereof; the water inlet end of the sea water sampling pipe passes through the metal protection pipe and enters the horn mouth of the horn-shaped joint, and the water inlet end of the sea water sampling pipe is fixed in the horn mouth of the horn-shaped joint by a nylon nut.

[0004] The above lifting fin plate connects the sampling pipe and the plastic joint through a nut, and the plastic joint is fixed by a nut after passing through the horn-shaped joint. The existing connection form has the problem that the inner hole of the joint is smaller than the inner diameter of the hose, which is not conducive to pump suction; and since the vacuum degree of the water taking hose needs to be ensured, the hose is relatively hard, if the clamping force of the clamp or the nut is insufficient, the water in the fin plate may enter the hose, and the purity of the water quality cannot be ensured; at the same time, when replacing the hose, if the threaded joint is extracted together from the protection pipe, it is easy to be blocked, and if the clamp or the nut is loosened to extract the hose, it needs to be removed by entering the fin plate, which is time-consuming and laborious and inconvenient. SUMMARY

[0005] The present application aims to provide a lifting fin sea water sampling pipe locking structure to solve the problem that the water taking pipe is connected to the fin plate support through a plastic joint in the prior art, which is not conducive to pump suction, is easy to mix with water in the fin plate, and is inconvenient to replace.

[0006] In order to achieve the above object, the application provides a locking structure of a lifting fin seawater sampling tube, comprising a fin plate, a sleeve, a sampling tube and a fastener, the fin plate has a sampling hole penetrating in and out, the sleeve is sleeved on the sampling hole, the sleeve is fixedly assembled with the fin plate, the sampling tube is sleeved on the sleeve, the fastener is arranged on the outside of the fin plate, and the fastener fixedly connects the sampling tube and the sleeve; further comprising a protective tube and a support, the support is fixedly arranged on the fin plate, the protective tube is sleeved on the outside of the sampling tube, and the protective tube is fixedly assembled with the support.

[0007] Preferably, the fastener comprises a locking ring and a locking nut, the locking ring is sleeved on the outside of the sampling tube, one end of the locking ring close to the fin plate has a guide section with gradually increasing outer diameter, the guide section is top-pressing assembled with the sleeve, the locking nut is screw-assembled with the sleeve, the locking nut has a radially extending locking platform, and the locking platform is stop-assembled with one end of the locking ring away from the fin plate along the axial direction of the sampling tube.

[0008] Preferably, the guide section is a conical structure, the outer wall surface of the guide section is a conical surface, and the end of the sleeve has an inclined surface in guide cooperation with the guide section.

[0009] Preferably, one end of the locking ring away from the fin plate is further provided with a stop platform, the stop platform is stop-assembled with the sleeve along the axial direction of the sampling tube, and the stop platform is stop-assembled with the locking platform along the axial direction of the sampling tube.

[0010] Preferably, one end of the sleeve located in the fin plate has a flange, the flange is stop-cooperated with the hole of the sampling hole, one end of the sleeve located outside the fin plate is screw-assembled with a fixing nut, and the sleeve and the fin plate are detachably assembled through the fixing nut and the flange.

[0011] Preferably, the protective tube comprises a first protection section and a second protection section, one end of the first protection section is inserted into the second protection section, the second protection section is fixedly connected with the support, the support and the first protection section have an axial interval along the axial direction of the sampling tube, the axial interval is greater than the axial length of the sleeve, and the support and the fin plate are detachably connected.

[0012] Preferably, the support is a flange, a plurality of fixing holes are arranged on the support along the circumferential direction of the sampling tube, and the support and the fin plate are fixedly assembled through bolts.

[0013] Compared with the prior art, the beneficial effects of the lifting fin seawater sampling pipe locking structure of the embodiment of the present application are as follows: the sleeve is arranged on the fin plate to penetrate the sampling hole to penetrate the inner and outer sides of the fin plate, the sampling pipe is sleeved in the sleeve, the sampling pipe is directly penetrated through the fin plate and extends to the outside of the fin plate, the sleeve and the sampling pipe are fixedly connected on the outside of the fin plate through the fastener, the sampling pipe is protected by the bracket, the sampling pipe does not need to be connected with the joint first and then the joint is penetrated through the fin plate, the pipe diameter of the end is unchanged, the suction resistance is small, and the pump suction is facilitated; the sampling pipe is directly penetrated through the fin plate and extends to the outside of the fin plate, the sampling pipe has no joint on the inside of the fin plate, the water in the fin plate cannot be mixed into the sampling pipe, and the purity of the water quality is ensured; when the sampling pipe is replaced, the fastener on the outside of the fin plate is loosened, the sampling pipe can be pulled out from the sleeve and the protection pipe, the joint is not blocked, the fin plate does not need to be entered, and the replacement and disassembly are simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structure schematic view of the lifting fin seawater sampling pipe locking structure of the present application;

[0015] Figure 2 is Figure 1 a structure schematic view of the sleeve of the lifting fin seawater sampling pipe locking structure of the present application;

[0016] Figure 3 is Figure 1 a structure schematic view of the locking ring of the lifting fin seawater sampling pipe locking structure of the present application;

[0017] Figure 4 is Figure 1 a structure schematic view of the locking nut of the lifting fin seawater sampling pipe locking structure of the present application;

[0018] Figure 5 is Figure 1 a structure schematic view of the fin plate of the lifting fin seawater sampling pipe locking structure of the present application.

[0019] In the figure, 1 is a fin plate, 11 is a sampling hole, 2 is a sleeve, 21 is a flange, 3 is a sampling pipe, 4 is a fastener, 41 is a locking ring, 411 is a guide section, 412 is a blocking table, 42 is a locking nut, 421 is a locking table, 5 is a protection pipe, 51 is a first protection section, 52 is a second protection section, 6 is a bracket, and 7 is a fixing nut. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application are further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0021] The preferred embodiment of the lifting fin seawater sampling pipe 3 locking structure of the present application is as follows: Figures 1 to 5As shown, the locking structure of the lifting fin seawater sampling pipe 3 comprises a fin plate 1, a sleeve 2, a sampling pipe 3 and a fastener 4. The fin plate 1 is used to be fixed on the ship body by lifting device. A sampling hole 11 is formed on the fin plate 1, which penetrates the inside and outside of the fin plate 1. The sampling hole 11 is used for the sampling pipe 3 to pass out to sample seawater outside the fin plate 1. The specific structure of the fin plate 1 is prior art, which is not described in detail here.

[0022] The sleeve 2 is sleeved on the sampling hole 11 of the fin plate 1, and the sleeve 2 is fixedly assembled with the fin plate 1. The sleeve 2 is assembled in the sampling hole 11 of the fin plate 1, which can protect the sampling pipe 3 and provide a basis for the assembly of the fastener 4, so as to fix the sampling pipe 3 in the sampling hole 11 of the fin plate 1 and protect the sampling pipe 3.

[0023] The sampling pipe 3 is a hose, which is sleeved in the sleeve 2. Since the sleeve 2 is sleeved on the sampling hole 11, and the sampling hole 11 penetrates the inside and outside of the fin plate 1, after the sampling pipe 3 is sleeved in the sleeve 2, the sampling pipe 3 directly passes through the fin plate 1 from the inside of the fin plate 1 to the outside of the fin plate 1. The part of the sampling pipe 3 outside the fin plate 1 can directly contact with seawater and realize sampling, without the need of arranging joints and other structures.

[0024] The fastener 4 is arranged outside the fin plate 1, which is used to fixedly connect the sampling pipe 3 and the sleeve 2 from the outside, so as to fixedly assemble the sampling pipe 3 on the sleeve 2, avoid the sampling pipe 3 from shaking, protect the sampling pipe 3 and prolong the service life of the sampling pipe 3. In addition, the fastener 4 fixedly connects the sampling pipe 3 from the outside. The sampling pipe 3 has no fixing structure inside the fin plate 1. When the sampling pipe 3 is disassembled and replaced, only the fastener 4 needs to be disassembled outside the fin plate 1, which is convenient and labor-saving.

[0025] The locking structure of the lifting fin seawater sampling pipe 3 further comprises a pipe protector 5 and a bracket 6. The bracket 6 is fixedly connected with the fin plate 1, and the pipe protector 5 is sleeved outside the sampling pipe 3 and fixedly assembled with the bracket 6. The bracket 6 connects the pipe protector 5 and the fin plate 1 as a whole, realizes fixed assembly of the pipe protector 5, and the pipe protector 5 can protect the sampling pipe 3 and prolong the service life of the sampling pipe 3.

[0026] The locking structure of the lifting fin seawater sampling pipe 3 directly penetrates the sampling pipe 3 through the fin plate 1 and extends to the outside of the fin plate 1, and the sampling pipe 3 and the sleeve pipe 2 are fixedly connected on the outside of the fin plate 1 by the fastener 4. The protective pipe 5 is fixed by the support 6 to protect the sampling pipe 3. The sampling pipe 3 does not need to be connected with a joint first and then the joint is penetrated through the fin plate 1. The pipe diameter of the end is unchanged, the suction resistance is small, and the pump suction is facilitated. The sampling pipe 3 directly penetrates the fin plate 1 and extends to the outside of the fin plate 1. The sampling pipe 3 has no interface on the inside of the fin plate 1. The water in the fin plate 1 will not mix into the sampling pipe 3, and the water quality is guaranteed to be pure. When the sampling pipe 3 is replaced, only the fastener 4 on the outside of the fin plate 1 needs to be loosened, and the sampling pipe 3 can be pulled out from the sleeve pipe 2 and the protective pipe 5. There is no joint jamming condition, and it is not necessary to enter the inside of the fin plate 1. The replacement and disassembly are simple and convenient.

[0027] Preferably, the fastener 4 includes a locking ring 41 and a locking nut 42. The locking ring 41 is sleeved on the outside of the sampling pipe 3. The end of the locking ring 41 close to the fin plate 1 has a guide section 411 with an increasing outer diameter. The guide section 411 is in top pressure assembly with the sleeve pipe 2. The locking nut 42 is in threaded assembly with the sleeve pipe 2. The locking nut 42 has a locking platform 421 extending radially. The locking platform 421 is in blocking assembly with the end of the locking ring 41 away from the fin plate 1 along the axial direction of the sampling pipe 3.

[0028] When the locking ring 41 is sleeved on the outside of the sampling pipe 3 and the locking nut 42 is screwed on the sleeve pipe 2, the locking nut 42 moves along the axial direction of the sampling pipe 3 under the action of the threaded structure. The locking platform 421 of the locking nut 42 pushes the locking ring 41 axially. The guide section 411 of the locking ring 41 presses the sleeve pipe 2. The locking ring 41 radially extrudes the sampling pipe 3 under the action of the guide section 411. Thus, the sampling pipe 3 is fixed, and the connection and fixation of the sampling pipe 3 and the sleeve pipe 2 are realized. In this embodiment, the locking platform 421 is in annular structure, and the cross section of the locking platform 421 is rectangular.

[0029] The fastener 4 is composed of the locking ring 41 and the locking nut 42. The structure of the fastener 4 is simplified. The locking nut 42 can drive the locking ring 41 to radially lock the sampling pipe 3 synchronously in the process of screwing. The fixed assembly mode of the sampling pipe 3 is simplified. One end of the locking ring 41 has the guide section 411. The radial extrusion of the sampling pipe 3 is a gradual process in the process of screwing of the locking nut 42. The extrusion force gradually increases, and the sampling pipe 3 is prevented from being damaged.

[0030] In this embodiment, the materials of the locking ring 41, the locking nut 42 and the sleeve pipe 2 of the fastener 4 are polytetrafluoroethylene. The polytetrafluoroethylene has good corrosion resistance, reduces seawater erosion, and has long service life. In other embodiments, the fastener 4 can also be a clamp connected between the sleeve pipe 2 and the sampling pipe 3.

[0031] Preferably, the guide section 411 is in a conical structure, and the outer wall surface of the guide section 411 is a conical surface. The end of the sleeve 2 has an inclined surface which is guided by the guide section 411.

[0032] The guide section 411 is in a conical structure, and the sleeve 2 is provided with an inclined surface which matches the outer conical surface of the guide section 411. The inclined surface can stably press the locking ring 41 in the entire annular direction, and increase the stability of the locking ring 41 when moving in the axial direction, so that the locking ring 41 stably locks and fixes the sampling tube 3 in the entire circumferential direction. In other embodiments, the guide section 411 can also be in a horn structure, and the outer wall surface of the guide section 411 is a curved surface.

[0033] Preferably, the end of the locking ring 41 away from the fin 1 is further provided with a stop 412, the stop 412 is stop assembled with the sleeve 2 along the axial direction of the sampling tube 3, and the stop 412 is stop assembled with the locking platform 421 along the axial direction of the sampling tube 3.

[0034] The locking ring 41 is provided with the stop 412. In this embodiment, the stop 412 is in a ring structure, and the stop 412 is located between the sleeve 2 and the locking platform 421 of the locking nut 42 when the locking ring 41 is assembled. The stop 412 is stop assembled with the locking platform 421, so that the locking platform 421 of the locking nut 42 pushes the locking ring 41 to move through the stop 412, and the stop 412 is stop assembled with the sleeve 2, which can limit the movement amount of the locking ring 41, so as to avoid that the locking ring 41 moves excessively and damages the sampling tube 3.

[0035] Preferably, the end of the sleeve 2 located in the fin 1 has a flange 21, the flange 21 is stop assembled with the hole of the sampling hole 11, and the end of the sleeve 2 located outside the fin 1 is threadedly assembled with a fixing nut 7. The sleeve 2 and the fin 1 are detachably assembled through the fixing nut 7 and the flange 21.

[0036] The flange 21 of the sleeve 2 is stop assembled with the hole of the sampling hole 11, which can limit the position of the sleeve 2, so as to avoid that the sleeve 2 completely passes through the sampling hole 11 of the fin 1. The fixing nut 7 is threadedly assembled with the sleeve 2, and the fixing nut 7 and the flange 21 are respectively located on the inner side and the outer side of the fin 1, so as to fix the sleeve 2 on the fin 1. The sleeve 2 is detachably connected with the fin 1 through the fixing nut 7 and the flange 21, which is convenient for replacement when the sleeve 2 is damaged.

[0037] Preferably, the protective tube 5 includes a first protection section 51 and a second protection section 52. One end of the first protection section 51 is inserted into the second protection section 52, the second protection section 52 is fixedly connected with the support 6, the support 6 and the first protection section 51 have an axial interval along the axial direction of the sampling tube 3, the axial interval is greater than the axial length of the sleeve 2, and the support 6 is detachably connected with the fin 1.

[0038] The protection pipe 5 is formed by a first protection section 51 and a second protection section 52, the second protection section 52 is fixedly assembled with the fin plate 1 through the support 6, so that the first protection section 51 and the second protection section 52 can be disassembled. The protection pipe 5 in the fin plate 1 is generally a fixed structure, when the sampling pipe 3 and the sleeve pipe 2 need to be replaced, the protection pipe 5 will not be disassembled, in the embodiment, the protection pipe 5 is connected by nesting of the first protection section 51 and the second protection section 52, so that the second protection section 52 can move on the first protection section 51, and operation space is provided for replacement of the sleeve pipe 2.

[0039] Since the first protection section 51 and the support 6 have an axial interval, and the axial interval is greater than the axial length of the sleeve pipe 2, when the sleeve pipe 2 needs to be replaced, the support 6 can be disassembled from the fin plate 1, the support 6 and the second protection section 52 are moved towards the first protection section 51, when the support 6 contacts the first protection section 51, the distance between the support 6 and the fin plate 1 will be greater than the axial length of the sleeve pipe 2, so that the sleeve pipe 2 can be disassembled from the fin plate 1, and the sleeve pipe 2 is replaced.

[0040] Preferably, the support 6 is a flange, a plurality of fixing holes are arranged on the support 6 and spaced along the circumference of the sampling pipe 3, and the support 6 is fixedly assembled with the fin plate 1 through the fixing holes and bolts.

[0041] The flange is adopted to form the support 6, the flange can be made on site according to needs, the structure of the support 6 is simplified, and the cost is reduced. In the embodiment, the second protection section 52 is fixedly welded with the support 6, and the support 6 is connected with the fin plate 1 through the fixing holes and the bolts, so that the connection strength of the support 6 and the fin plate 1 is ensured, and the support 6 is convenient to disassemble and replace the sleeve pipe 2 when needed.

[0042] In summary, the embodiment of the present application provides a lifting fin seawater sampling pipe locking structure, a sleeve pipe is arranged on a fin plate and penetrates through a sampling hole to penetrate through both sides of the fin plate, a sampling pipe is arranged in the sleeve pipe, the sampling pipe directly penetrates through the fin plate and extends to the outside of the fin plate, the sleeve pipe and the sampling pipe are fixedly connected on the outside of the fin plate through fasteners, the protection pipe is fixed by the support, the sampling pipe is protected, a joint is not needed to be connected on the sampling pipe and then the joint penetrates through the fin plate, the pipe diameter of the end is unchanged, the suction resistance is small, and pumping is convenient; the sampling pipe directly penetrates through the fin plate and extends to the outside of the fin plate, the sampling pipe has no joint on the inside of the fin plate, water in the fin plate will not mix into the sampling pipe, and the purity of the water quality is ensured; when the sampling pipe needs to be replaced, the fasteners on the outside of the fin plate are loosened, the sampling pipe can be pulled out from the sleeve pipe and the protection pipe, the joint is not blocked, it is not needed to enter the inside of the fin plate, and replacement and disassembly are simple and convenient.

[0043] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A locking structure for a seawater sampling tube (3) with a lifting fin, characterized in that, The device includes a fin plate (1), a sleeve (2), a sampling tube (3), and a fastener (4). The fin plate (1) has a sampling hole (11) that extends through the inside and outside. The sleeve (2) is inserted through the sampling hole (11) and is fixedly assembled with the fin plate (1). The sampling tube (3) is inserted through the sleeve (2). The fastener (4) is arranged on the outside of the fin plate (1) and is fixedly connected with the sampling tube (3) and the sleeve (2). The device also includes a protective tube (5) and a bracket (6). The bracket (6) is fixedly arranged on the fin plate (1). The protective tube (5) is fitted on the outside of the sampling tube (3) and is fixedly assembled with the bracket (6). The fastener (4) includes a locking ring (41) and a locking nut (42). The locking ring (41) is fitted onto the outside of the sampling tube (3). The end of the locking ring (41) near the fin (1) has a guide section (411) with a gradually increasing outer diameter. The guide section (411) is press-fitted with the sleeve (2). The locking nut (42) is threadedly fitted with the sleeve (2). The locking nut (42) has a radially extending locking platform (421). The locking platform (421) is fitted with the end of the locking ring (41) away from the fin (1) along the axial direction of the sampling tube (3). The sleeve (2) has a flange (21) at one end inside the fin (1), and the flange (21) is fitted with the hole edge of the sampling hole (11). The sleeve (2) is threaded with a fixing nut (7) at one end outside the fin (1). The sleeve (2) and the fin (1) are detachably assembled and disassembled with the flange (21) through the fixing nut (7). The protective tube (5) includes a first protective section (51) and a second protective section (52). One end of the first protective section (51) is inserted into the second protective section (52). The second protective section (52) is fixedly connected to the bracket (6). The bracket (6) and the first protective section (51) have an axial gap along the axis of the sampling tube (3). The axial gap is greater than the axial length of the sleeve (2). The bracket (6) is detachably connected to the fin plate (1).

2. The locking structure of the lifting fin seawater sampling tube (3) according to claim 1, characterized in that, The guide section (411) has a tapered structure, the outer wall surface of the guide section (411) is a tapered surface, and the end of the sleeve (2) has an inclined surface that guides and cooperates with the guide section (411).

3. The locking structure of the lifting fin seawater sampling tube (3) according to claim 1, characterized in that, A stop (412) is provided at one end of the locking ring (41) away from the fin plate (1). The stop (412) and the sleeve (2) are fitted together to stop the sampling tube (3) along the axial direction. The stop (412) and the locking plate (421) are fitted together to stop the sampling tube (3) along the axial direction.

4. The locking structure of the lifting fin seawater sampling tube (3) according to claim 1, characterized in that, The bracket (6) is a flange, and the bracket (6) has a plurality of fixing holes arranged at intervals along the circumference of the sampling tube (3). The bracket (6) and the fin plate (1) are fixedly assembled by bolts.

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