CN116345366A - Marine adjustable flange with stuffing box and application method thereof - Google Patents

Abstract

The invention discloses a marine adjustable flange with a stuffing box and a use method thereof, wherein the stuffing box flange comprises a stuffing box main body, a hollow supporting ring, a telescopic rubber body, a telescopic spring, an adjustable bolt and an annular clamping ring, wherein the telescopic rubber body is arranged inside the stuffing box main body, the hollow supporting ring is connected between the stuffing box main body and the telescopic rubber body, the annular clamping ring is circumferentially arranged on the inner side wall of the telescopic rubber body, one end of the telescopic spring is connected with the outer side wall of the telescopic rubber body, the other end of the telescopic spring is connected with the adjustable bolt, the side wall of the stuffing box main body is provided with a bolt hole which is matched with the adjustable bolt, and one side, close to an equipment end, of the stuffing box main body is arranged in an equipment cable pipe. The invention has stable structure, long service life, convenient execution and release of working state and simple use process.

Description

A marine adjustable flange with stuffing box and its application method

technical field

The invention belongs to the technical field of ship building, and in particular relates to a ship-used adjustable flange with a stuffing box and a use method thereof.

Background technique

Depth sounder and log are instruments used by ships to measure water depth and speed. The depth sounder and the speed log are installed at the bottom of the ship, and the cables on the depth sounder and the speed log will pass through a cable tube filled with sand to achieve stability and prevent shaking, bumping and water corrosion. Therefore, how to complete the connection between the measuring equipment (depth sounder, log) and the tank sand pipe is a problem that needs to be solved urgently.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a marine adjustable flange with a stuffing box. The present invention facilitates the reasonable arrangement of the cable arrangement in the subsequent ship construction process, and makes the cables of the depth sounder and the log equipment be protected. In addition, the present invention also provides a method for using a marine adjustable flange with a stuffing box.

To achieve the above object, the present invention adopts the following technical solutions:

The first aspect of the present invention provides a marine adjustable flange with a stuffing box, including a stuffing box main body, a hollow support ring, a retractable rubber body, a telescopic spring, an adjustable bolt, and an annular collar. The body is arranged inside the main body of the stuffing box, the hollow supporting ring is connected between the main body of the stuffing box and the elastic rubber body, and the annular collar is arranged around the inner side wall of the elastic rubber body, One end of the telescopic spring is connected to the outer wall of the telescopic rubber body, and the other end is connected to the adjustable bolt, and the side wall of the stuffing box main body is provided with a bolt hole matched with the adjustable bolt. The side of the stuffing box body close to the equipment end is set into the equipment cable tube.

As a preferred technical solution, the stretchable rubber body is a cuboid structure, and a circular through hole is opened along the length direction of the stretchable rubber, and the annular collar is spirally installed in the circular through hole. inner wall.

As a preferred technical solution, the stretchable rubber body is made of hard rubber, and the annular collar is made of soft rubber.

As a preferred technical solution, the main body of the stuffing box is made of stainless steel.

As a preferred technical solution, there are four telescopic springs, and the telescopic springs are respectively connected to four sides of the stretchable rubber body.

As a preferred technical solution, the hollow supporting ring includes four metal sheets, and the metal sheets connect the four corners of the stretchable rubber body and the inner side wall of the stuffing box main body.

As a preferred technical solution, the length of the stretchable rubber body is less than the length of the stuffing box main body.

As a preferred technical solution, when the stuffing box is used with the control box, it also includes a sealing mechanism. The sealing mechanism includes a suction cup and a sealing rubber body. The sealing rubber body is provided, the sealing rubber body includes an outer rubber section and an inner rubber section, the inner rubber section is folded inwardly and shrinks inside the outer rubber section, and the outer rubber section The thickness gradually increases along the direction away from the suction cup, and the thickness of the inner rubber section gradually decreases along the direction away from the suction cup.

As a preferred technical solution, when the inner rubber section is completely folded inward and shrinks inside the outer rubber section, the sealing mechanism is in a relaxed state. At this time, the outer rubber section and the inner rubber section The section is fixed by the fixing pin. When fixing the cable, pull out the fixing pin, pull the inner rubber section outward, and the inner rubber section and the outer rubber section are superimposed and squeeze the cable to complete the sealing and fixing.

The second aspect of the present invention provides a method for using a marine adjustable flange with a stuffing box. Using the above-mentioned adjustable marine flange with a stuffing box includes the following steps: before the cable is inserted, turn the adjustable bolt to move the telescopic spring Rotate in the outward direction, and then drive the stretchable rubber body to expand sideways, the hollow support ring shrinks, the inner diameter of the annular collar increases, and the space for the cable to pass through expands. After the cable penetrates, the adjustable bolt is turned into the main body of the stuffing box to compress The retractable rubber body and ring collar seal the cable securely.

Compared with the prior art, the present invention has the following technical effects:

(1) The stretchable rubber body and annular collar of the present invention can be customized according to the size of the cable, and cooperate with the reasonable structure of other external parts to meet the requirements of adapting to the sealing of the cable hole of the equipment, so that the adaptability of the device is better. When the adjustable diffuser is rotated to rotate the telescopic spring outward to a certain position, the cable can easily penetrate into the equipment, and then the adjustable bolt is turned into the main body of the stuffing box, and the cable can be fastened and clamped by the retractable rubber body and the ring collar, sealing cable hole.

(2) The structure of the present invention is stable, the service life is long, the execution and release of the working state are convenient, and the use process is simple.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a front view of a stuffing box flange in Embodiment 1 of the present invention.

Fig. 2 is a top view of a stuffing box flange in Embodiment 1 of the present invention.

Fig. 3 is a side view of the stuffing box flange in Embodiment 1 of the present invention.

Fig. 4 is a side view of the stuffing box flange of Embodiment 2 of the present invention.

Fig. 5 is a structural schematic diagram of the sealing mechanism in the relaxed state of the stuffing box flange in Embodiment 2 of the present invention.

Fig. 6 is a schematic structural view of the sealing mechanism in the expanded state of the stuffing box flange in Embodiment 2 of the present invention.

Fig. 7 is a cabin penetration diagram of the upper part of the cable pipe of the present invention.

Fig. 8 is a partial view of the depth sounder or log and the lower half of the cable pipe of the present invention.

Fig. 9 is a schematic diagram of the structure of the cable tube of the present invention.

Among them, the reference signs are specifically described as follows: stuffing box main body 1, hollow support ring 2, annular collar 3, adjustable bolt 4, telescopic spring 5, stretchable rubber body 6, inlet equipment cable tube 7, with stuffing box Flange 8, sealing mechanism 9, suction cup 10, sealing rubber body 11, outer layer rubber segment 12, inner layer rubber segment 13, fixing pin 14.

Detailed ways

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention.

Example 1

This embodiment provides a marine adjustable flange with a stuffing box, which includes a stuffing box main body 1, a hollow support ring 2, a retractable rubber body 6, a telescopic spring 5, an adjustable bolt 4, and an annular collar 3. The telescopic rubber body 6 is arranged inside the stuffing box main body 1, the hollow supporting ring 2 is connected between the stuffing box main body 1 and the telescopic rubber body 6, and the annular collar 3 is arranged around the The inner sidewall of the stretchable rubber body 6, one end of the stretchable spring 5 is connected to the outer sidewall of the stretchable rubber body 6, and the other end is connected to the adjustable bolt 4, and the sidewall of the stuffing box main body 1 is provided with Bolt holes that are installed in cooperation with the adjustable bolts 4, and the side of the stuffing box main body 1 close to the equipment end is set into the equipment cable tube 7.

Wherein, the stretchable rubber body 6 is a cuboid structure, and a circular through hole is opened along the length direction of the stretchable rubber, and the annular collar 3 is spirally installed on the inner wall of the circular through hole, The stretchable rubber body 6 is made of hard rubber, the annular collar 3 is made of soft rubber, and the stuffing box main body 1 is made of stainless steel. There are four telescopic springs 5 , and the telescopic springs 5 are respectively connected to four sides of the telescopic rubber body 6 . The hollow support ring 2 includes four metal sheets, which can withstand a certain bending stress, and the metal sheets connect the four corners of the elastic rubber body 6 with the inner side wall of the stuffing box main body 1, and the telescopic spring 5 and the metal sheet are set at intervals.

Implementation method of the present invention comprises the following steps:

Step 1. During production, the stuffing box and the flange are welded and fixed to leave the factory;

Step 2. The tightness of the seamless steel pipe body is inspected before the cable pipe is installed.

Step 3: Connect the cable pipe to the flange 8 with stuffing box.

Step 4. When the adjustable bolt 4 is turned, the telescopic spring 5 will be rotated in the outward direction, and then the telescopic rubber body 6 will be expanded to the side, and the hollow support ring 2 will shrink, further expanding the space for the cable to pass through, and passing the cable through the main body of the stuffing box 1;

Step 5. After the cable is threaded in, turn the adjustable bolt 4 into the main body of the stuffing box 1, compress the stretchable rubber body 6 and the annular collar 3 to tighten and seal the cable, and have a certain function of preventing water;

Step 6. Then use waterproof blocking material to block the outer depression to protect the inner waterproof rubber and increase durability;

Step 7. Check the tightness of the packing at the end of the pipe; unscrew the marine discharge screw plug on the pre-installed threaded joint on the pipe that needs to be inflated, connect the inflation pipe, and then tighten the outer nut of the threaded joint to open the air intake Valve, keep the pressure in the pipe at 0.03MPa, and then close the intake valve; after the pipe is inflated, apply soap liquid on the filler at the cable pipe port, and there should be no air bubbles. If the place is difficult to observe visually, use a pressure gauge to measure it, and it is qualified if the pressure does not drop for 1 hour; after the inflation test is completed, the marine discharge screw plug should still be screwed on the threaded joint of the branch pipe, tightened and restore the tightness of the place;

Step 8, sand filling; sand filling generally does not need to be opened separately, and the original cable entrance is directly used. It can also flush and irrigate vertically laid cable pipes through special branch pipes for sand irrigation;

Step 9. The cable tube in the vertical part should be filled, and the vibrator should be temporarily installed or manually knocked at the cable tube in the inclined flat section when filling sand;

Step 10. After the sand filling cable pipe is filled with sand, the upper opening of the cable pipe should be sealed with a stuffing box, including the sand filling port of the branch pipe. ;

Step 11. After 20 hours of sand filling for the first time, use a vibrator or manually tap to check whether the cable tube can continue to fill with sand.

Step 12. If sand can still be filled, repeat steps 8 and 9 until it is full. After sand filling, the cable tube should be sealed.

Example 2

This embodiment provides a marine adjustable stuffing box. The structure of the stuffing box in this embodiment is roughly the same as that of Embodiment 1. The difference is that this embodiment does not include a flange structure when it is applied to a sealed box, but adds Sealing mechanism 9, the sealing mechanism 9 includes a suction cup 10 and a sealing rubber body 11, the two ends of the suction cup 10 are open, and one end of the suction cup 10 with a small opening is provided with a sealing rubber body 11 along the circumference of the opening, and the sealing rubber body 11 includes an outer rubber section 12 and the inner rubber section 13, the inner rubber section 13 folds inwardly and shrinks inside the outer rubber section 12, the thickness of the outer rubber section 12 gradually increases along the direction away from the suction cup 10, the thickness of the inner rubber section 13 gradually decreases along the direction away from the suction cup 10. When the inner rubber section 13 is folded inward and completely shrunk inside the outer rubber section 12, the sealing mechanism is in a relaxed state at this time, and the outer rubber section 12 and the inner rubber section 13 are fixed by the fixing pin 14, which is convenient for cables to pass through. After the cable passes through, the fixing pin 14 is pulled out, and the inner rubber section 13 is pulled outward, and the inner rubber section 13 and the outer rubber section 12 are stacked in thickness to extrude the cable, and then sealed and fixed.

The usage scenario of the sealing mechanism 9 is that when the stuffing box is fixed at the end of the sealing box, the sealing mechanism 9 is adsorbed on the side of the stuffing box flange away from the sealing box through the suction cup 10. In the initial state, the inner rubber section is completely 13 is fully folded inward and shrunk in the outer layer rubber section 12. At this time, the inner diameter of the density rubber body 11 is relatively large, which is convenient for cables to pass through. After the cable passes through, pull out the fixing pin 14 and pull the inner rubber section 13 outward. At this time, the inner rubber section 13 is squeezed to complete the sealing of the cable. Looseness occurs, and waterproof blocking material needs to be filled at this time.

Although the above embodiments have specifically described the present invention, those of ordinary skill in the art should understand that modifications or improvements can be made based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. All modifications and improvements are within the spirit and scope of the invention.

Claims (10)

1. The utility model provides a take packing box flange with adjustable it is marine, its characterized in that, including packing box main part, cavity holding ring, scalable rubber body, extension spring, adjustable bolt, cyclic annular rand, scalable rubber body set up in inside the packing box main part, the cavity holding ring connect the packing box main part with between the scalable rubber body, cyclic annular rand encircle set up in the inside wall of scalable rubber body, but the one end of extension spring is connected the lateral wall of scalable rubber body, but the other end is connected adjustable bolt, the lateral wall of packing box main part be provided with the bolt hole of adjustable bolt cooperation installation, one side that the packing box main part is close to the equipment end sets up into equipment cable pipe.

2. The marine adjustable flange with a stuffing box according to claim 1, wherein the telescopic rubber body has a cuboid structure, a circular through hole is formed along the length direction of the telescopic rubber, and the annular collar is spirally arranged on the inner wall of the circular through hole.

3. The marine adjustable stuffing box flange of claim 2 wherein said telescoping rubber is made of hard rubber and said annular collar is made of soft rubber.

4. The marine adjustable stuffing box flange of claim 1 wherein said stuffing box body is made of stainless steel material.

5. A marine adjustable stuffing box flange according to claim 2, wherein 4 telescopic springs are provided, said telescopic springs being connected to four sides of said telescopic rubber body respectively.

6. A marine adjustable stuffing box flange according to claim 2 wherein said hollow support ring comprises 4 metal sheets connecting four corners of said telescopic rubber body with the inner side walls of said stuffing box body.

7. A marine adjustable stuffing box flange according to claim 1 wherein said length of said telescopic rubber body is less than the length of said stuffing box body.

8. The marine adjustable flange with a stuffing box according to claim 1, further comprising a sealing mechanism when the stuffing box is used and controlled by the control box, wherein the sealing mechanism comprises a sucker and a sealing rubber body, two ends of the sucker are opened, one end of the small opening of the sucker is provided with the sealing rubber body along the circumferential direction of the opening, the sealing rubber body comprises an outer rubber section and an inner rubber section, the inner rubber section is folded inwards and contracted at the inner side of the outer rubber section, the thickness of the outer rubber section is gradually increased along the direction away from the sucker, and the thickness of the inner rubber section is gradually reduced along the direction away from the sucker.

9. The marine adjustable stuffing box flange according to claim 8, wherein the sealing mechanism is in a relaxed state when the inner rubber section is completely folded inwards and contracted inside the outer rubber section, the outer rubber section and the inner rubber section are fixed by a fixing pin, the fixing pin is pulled out when the cable is fixed, the inner rubber section is pulled outwards, and the inner rubber section and the outer rubber section are overlapped and pressed to the thickness to squeeze the cable, so that sealing and fixing are completed.

10. A method of using a marine adjustable stuffing box flange according to any one of claims 1 to 9, comprising the steps of: before the cable penetrates, rotate adjustable bolt and go out the direction rotation with the expansion spring, and then drive scalable rubber body to the side expansion, the shrink of cavity holding ring, the internal diameter increase of cyclic annular rand, the cable passes through the space expansion, the cable penetrates the back, with adjustable bolt rotation stuffing box main part, compression scalable rubber body and cyclic annular rand are with cable fastening seal.

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