Depth measuring head with pressure relief function

Abstract

The utility model relates to the technical field of ship related equipment, and discloses a sounding head with a pressure relief function, which comprises a cap and a base which are positioned at the top of a sounding pipe, the sounding pipe is perpendicular to the inside of a ballast tank, the sounding pipe comprises a node I and a node II, the cap comprises a cap brim and a cap body, the side edge of the cap body is provided with pressure relief holes, the pressure relief holes comprise a transverse hole and a longitudinal hole, and the transverse hole is communicated with the longitudinal hole. A sealing ring is arranged at the bottom of the hat brim, a T-shaped groove matched with the hat brim is formed in the upper portion of the base, and the hat brim is connected with the hat body through a chain. The pressure relief hole is formed in the sounding head, the sounding head is prevented from being bounced due to the fact that the pressure in the sounding pipe is too large, the pressure relief hole releases part of gas pressure in advance, then the sounding head is opened, the sounding head can be normally opened, the safety of sounding work is guaranteed, the pressure relief hole is formed in the sounding head, the pressure in the sounding pipe is prevented from being too large, and the sounding efficiency is improved. When the sounding head is opened, the sounding head is bounced instantly, the pressure relief hole can release a part of pressure firstly, and then the sounding head is opened, so that the safety of sounding work is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ship-related equipment, in particular to a depth sounding head with a pressure relief function. Background Art

[0002] As one of the most basic piping systems of a ship, the sounding tube is used in conjunction with a depth gauge to measure the liquid level in the cabin. Before measuring, the crew needs to unscrew the sounding head first. In the actual operation process, according to the feedback from the crew, due to the special shapes of some cabins on the ship, compressed gas will accumulate in some sounding tubes. The moment the crew unscrews the sounding head, the compressed gas will push the sounding head out, causing unnecessary personal injury to the operator. Therefore, during the construction of the ship, the shipowner will require the use of other methods such as liquid level telemetry for similar cabins instead of sounding tubes, which invisibly increases the construction cost of the shipyard.

[0003] When the liquid level is lower than the vent hole of the sounding pipe in node 2, the air in the sounding pipe will enter the tank through the vent hole and finally be discharged into the atmosphere through the ballast tank vent pipe.

[0004] When the liquid level is higher than the air vent of the sounding tube in node 2, the air in the sounding tube cannot be discharged through the air vent. As the liquid level rises, the air in the sounding tube will be further compressed, generating pressure inside the tube. If the sounding head is opened at this time, the sounding head will be ejected instantly due to the very high internal pressure, which will cause harm to the operator.

[0005] In the document CN202210861455, a sounding pipe mouth protection device and a protection method thereof are disclosed. The sounding pipe mouth protection device includes a protective sleeve, a rotating cover and a fixed sleeve, which are fixed to the sounding pipe mouth by threaded connection to strengthen the connection strength between the sounding pipe mouth and the protective device. The fixed sleeve of the sounding pipe mouth protection device has a certain height. When the protective sleeve is removed, it can block the waste on both sides of the fixed cover from entering the sounding pipe to a certain extent. By connecting a chain between the rotating cover and the fixed sleeve, the protective sleeve is prevented from being lost after being removed. In the sounding head of this structure, once the internal air pressure is high and is not released, when the operator unscrews the sounding head, the sounding head will be ejected, posing a threat to the safety of the operator.

[0006] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the invention

[0007] In order to solve the above problems, the utility model discloses a depth sounding head with a pressure relief function. A pressure relief hole is opened on the depth sounding head to avoid excessive pressure in the depth sounding tube, which causes the depth sounding head to be instantly bounced up. The pressure relief hole can release part of the gas pressure in advance, and then when the depth sounding head is opened, it can be opened normally to ensure the safety of the depth sounding work.

[0008] The technical solution of the utility model is: a sounding head with a pressure relief function, comprising a cap and a base located on the top of a sounding tube, the sounding tube is perpendicular to the ballast tank, the sounding tube comprises a node one and a node two, the cap comprises a brim and a cap body, a pressure relief hole is opened on the side of the cap body, the pressure relief hole comprises a transverse hole and a longitudinal hole, a sealing ring is provided at the bottom of the brim, a T-shaped groove adapted to the brim is provided on the upper part of the base, and the brim and the cap body are connected by a chain.

[0009] By adopting the above technical solution, when the cap body is unscrewed from the base by 1 / 4 to 1 / 3 of the thread length through the brim, the compressed gas accumulated in the sounding tube is released in advance to ensure smooth sounding work, and the chain between the cap body and the base can also prevent the cap body and the base from detaching, and the sealing ring can play a sealing role between the brim and the cap body.

[0010] Preferably, the transverse opening is located on the side of the cap body, the transverse opening is perpendicular to the tangent line of the cap body, and the transverse opening is located close to one-third of the top of the cap body and is opened inward.

[0011] By adopting the above technical solution, when the cap body is unscrewed from the base and lifted up, a gap is generated between the external thread and the internal thread of the cap body, and the transverse openings and longitudinal openings on the side of the cap body can deflate the sounding tube and release the compressed air accumulated in the sounding tube.

[0012] Preferably, the longitudinal opening is perpendicular to the transverse opening, the longitudinal opening is connected to the transverse opening, the longitudinal opening is located at the bottom of the cap body near the first third of the transverse opening and is opened longitudinally along the cap body, and the cap body is a solid cylinder.

[0013] By adopting the above technical solution, the longitudinal opening can transport the compressed gas in the sounding tube to the transverse opening, and then release it from the transverse opening.

[0014] Preferably, an outer side edge of the cap body is provided with an external thread, the brim at the top of the cap body is arched, the side of the brim is a vertical edge, and the bottom of the brim located on the side of the cap body is a sealing ring.

[0015] By adopting the above technical solution, the brim of the hat is just snapped into the T-shaped groove of the base, and the brim and the base are sealed by a sealing ring to prevent air leakage.

[0016] Preferably, the bottom of the cap body is provided with a middle portion connected to the middle portion of a T-shaped groove of the base through a chain, the T-shaped groove of the base is provided with an internal thread matching the external thread of the cap body, and the vertical edge of the brim is located exactly in the T-shaped groove.

[0017] By adopting the above technical solution, the chain can prevent the cap body and the base from being separated, and the brim of the cap is just stuck in the T-shaped groove to prevent air leakage.

[0018] Preferably, the top side of the base is welded to the deck, the middle of the bottom of the base is welded to the top of the sounding tube as node one, node two is located below node one on the sounding tube, and node two is a vent located on the sounding tube.

[0019] By adopting the above technical solution, node two can deflate the sounding tube. When the liquid level does not exceed node two, the gas can be released through the air vent at the node two position. When the liquid level is higher than node two, the gas can be deflated through node one.

[0020] Preferably, the sounding pipe is vertically fixed on the pipeline bracket, and a ballast tank vent pipe is provided in the ballast tank.

[0021] Advantages of the utility model: 1. The utility model has a pressure relief hole on the sounding head to avoid excessive pressure in the sounding tube, which causes the sounding head to be instantly bounced up. The pressure relief hole can release part of the gas pressure in advance, and then when the sounding head is opened, it can be opened normally to ensure the safety of the sounding work.

[0022] 2. The utility model provides transverse openings and longitudinal openings on the cap body, so that the gas at the bottom of the cap body can be discharged from the longitudinal openings to the transverse openings, which can speed up the exhaust speed and prevent the depth sounding head from being bounced up when the depth sounding head is opened.

[0023] 3. The utility model improves the safety performance of the depth measuring head, protects the personal safety of the operator, and ensures the safety of the depth measuring operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the pressure relief hole of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a bottom view of a cap body of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of a top view of the brim of the depth measuring head of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the utility model fixed to a pipeline support;

[0029] Figure 6 The utility model is a schematic diagram of the structure of the ballast tank.

[0030] Among them: 1. Cap, 2. Brim, 2-1. Vertical edge, 2-2. Sealing ring, 3. Cap body, 4. Pressure relief hole, 4-1. Horizontal opening, 4-2. Longitudinal opening, 5. Base, 5-1. T-shaped groove, 6. Chain, 7. Sounding pipe, 7-1. Node one, 7-2. Node two, 8. Deck, 9. Pipeline bracket, 10. Ballast tank vent pipe, 11. Ballast tank. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] like Figure 1-6 As shown, a sounding head with a pressure relief function includes a cap 1 and a base 5 located on the top of a sounding tube 7, the sounding tube 7 is perpendicular to the ballast tank 11, the sounding tube 7 includes a node 1 7-1 and a node 2 7-2, the cap 1 includes a brim 2 and a cap body 3, the side of the cap body 3 is provided with a pressure relief hole 4, the pressure relief hole 4 includes a transverse hole 4-1 and a longitudinal hole 4-2, a sealing ring 2-2 is provided at the bottom of the brim 2, and a T-shaped groove 5-1 adapted to the brim 2 is provided on the upper part of the base 5, the brim 2 and the cap body 3 are connected by a chain 6, when the cap body 3 is unscrewed from the base 5 by 1 / 4 to 1 / 3 of the thread length through the brim 2, the compressed gas accumulated in the sounding tube 7 is released in advance to ensure smooth sounding work, and the chain 6 between the cap body 3 and the base 5 can also prevent the cap body 3 and the base 5 from detaching, and the sealing ring 2-2 can seal between the brim 2 and the cap body 3.

[0033] The transverse opening 4-1 is located on the side of the cap body 3, and the transverse opening 4-1 is perpendicular to the tangent of the cap body 3. The transverse opening 4-1 is located near the top one-third of the cap body 3 and is opened inward. When the cap body 3 is unscrewed from the base 5 and lifted, a gap is generated between the external thread and the internal thread of the cap body 3. The transverse opening 4-1 and the longitudinal opening 4-2 on the side of the cap body 3 can deflate the depth tube 7 and release the compressed air accumulated in the depth tube 7.

[0034] The longitudinal opening 4-2 is perpendicular to the transverse opening 4-1, and the longitudinal opening 4-2 is connected to the transverse opening 4-1. The longitudinal opening 4-2 is located at the bottom of the cap body 3 near the first third of the transverse opening 4-1 and is opened longitudinally along the cap body 3. The cap body 3 is a solid cylinder. The longitudinal opening 4-2 can transport the compressed gas in the sounding tube 7 to the transverse opening 4-1, and then release it from the transverse opening 4-1.

[0035] An external thread is provided on the outer side of the hat body 3, the brim 2 on the top of the hat body 3 is arched, the side of the brim 2 is a vertical edge 2-1, and the bottom of the brim 2 located on the side of the hat body 3 is a sealing ring 2-2, the brim 2 is just clamped in the T-shaped groove 5-1 of the base 5, and the brim 2 and the base 5 are sealed by the sealing ring 2-2 to prevent air leakage.

[0036] The bottom of the cap body 3 is provided with a middle portion connected to the middle portion of a T-groove 5-1 of the base 5 through a chain 6, the T-groove 5-1 of the base 5 is provided with an internal thread matched with the external thread of the cap body 3, the vertical edge 2-1 of the brim 2 is just located in the T-groove 5-1, the chain 6 can prevent the cap body 3 and the base 5 from separating, and the brim 2 is also just stuck in the T-groove 5-1 to prevent air leakage.

[0037] The top side of the base 5 is welded to the deck 8, and the middle bottom of the base 5 is welded to the top of the sounding tube 7 as node one 7-1. Node two 7-2 is located below node one 7-1 on the sounding tube 7. Node two 7-2 is an air vent located on the sounding tube 7. Node two 7-2 can deflate the sounding tube 7. When the liquid level does not exceed node two 7-2, the gas can be released through the air vent at the position of node two 7-2. When the liquid level is higher than node two 7-2, it can be deflated through node one 7-1.

[0038] The sounding pipe 7 is vertically fixed on the pipeline support 9, and a ballast tank vent pipe 10 is provided in the ballast tank 11.

[0039] When the liquid level is lower than the air hole of the sounding tube 7 in node two 7-2, the air in the sounding tube 7 will enter the ballast tank 11 through the air hole, and finally be discharged into the atmosphere through the ballast tank air pipe 10. When the liquid level is higher than the air hole of the sounding tube 7 in node two 7-2, the air in the sounding tube 7 cannot be discharged through the air hole. As the liquid level rises, the air in the sounding tube will be further compressed, generating pressure in the tube. Then the cap body 3 is unscrewed from the base 5, and the pressure relief hole 4 in the cap body 3 will relieve the pressure in the tube to prevent the sounding head from opening instantly and causing harm to the operator.

[0040] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention, and the purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the implementation methods of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A sounding head with a pressure relief function, comprising a cap and a base located at the top of a sounding tube, wherein the sounding tube is perpendicular to the ballast tank, and the sounding tube comprises a node 1 and a node 2, characterized in that: The cap includes a brim and a cap body. A pressure relief hole is opened on the side of the cap body. The pressure relief hole includes a transverse hole and a longitudinal hole. A sealing ring is provided at the bottom of the brim. A T-shaped groove adapted to the brim is provided on the upper part of the base. The brim and the cap body are connected by a chain.

2. A depth sounding head with pressure relief function according to claim 1, characterized in that: A transverse opening is provided on the side of the cap body, the transverse opening is perpendicular to the tangent line of the cap body, and the transverse opening is located near one-third of the top of the cap body and is opened inwards.

3. A depth sounding head with pressure relief function according to claim 2, characterized in that: The transverse opening is perpendicular to the longitudinal opening, the longitudinal opening is connected to the transverse opening, the longitudinal opening is located at the bottom of the cap body near the first third of the transverse opening and is opened longitudinally along the cap body, and the cap body is a solid cylinder.

4. A depth sounding head with pressure relief function according to claim 1, characterized in that: The outer side of the cap body is provided with an external thread, the brim on the top of the cap body is arched, the side of the brim is a vertical edge, and the bottom of the brim located on the side of the cap body is a sealing ring.

5. A depth sounding head with pressure relief function according to claim 4, characterized in that: The bottom of the cap body is provided with a middle portion connected to the middle portion of a T-shaped groove of the base through a chain, the T-shaped groove of the base is provided with an internal thread matched with the external thread of the cap body, and the vertical edge of the brim is just located in the T-shaped groove.

6. A depth sounding head with pressure relief function according to claim 1, characterized in that: The top side of the base is welded on the deck, the middle of the bottom of the base is welded to the top of the sounding tube as node one, and the node two is located below the node one on the sounding tube, and the node two is a vent located on the sounding tube.

7. The depth sounding head with pressure relief function according to claim 1, characterized in that: The sounding pipe is vertically fixed on the pipeline bracket, and a ballast tank ventilation pipe is arranged in the sea of ​​the ballast tank.

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