A marine pipe valve stem locking protection device and method

Abstract

The application discloses a kind of ship pipeline valve piece valve handle locking protection device, the device includes lock rod, chain and protection shell, the protection shell includes two protective cover, the two protective cover are rotatably fixedly connected by connecting rotating mechanism, lock buckle is equipped on the upper end surface of the two protective cover, arc-shaped claw and clamping groove are equipped on the lower end surface of the two protective cover, lock rod is equipped on the side of one of the protective cover, and the lock rod is connected with the protection shell by chain;The application also discloses a kind of ship pipeline valve piece valve handle locking protection method.The application can not only improve the safety of ship pipeline system and reduce the accident rate, but also has low requirement for site and strong applicability.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, and in particular to a valve handle locking protection device and method for ship pipeline valves. Background Technology

[0002] Piping systems are an essential component in the construction and operation of ships; they are the "lifeblood" of the ship's power system, connecting various equipment. Piping systems are used to transport various liquids and gases, ensuring the normal operation of the power plant, the safe operation of the ship, and meeting the normal living needs of the crew.

[0003] Pipeline control relies on valves, and personnel movement often leads to accidental valve handle activation, causing the valves to open or close. In such cases, warning signs such as "Do Not Operate" or a designated person is usually assigned to monitor the system. However, these warning signs are frequently removed by unauthorized personnel or fall off automatically, causing misoperation and construction risks. Furthermore, designated personnel may need to temporarily leave for emergencies, potentially leading to accidents when other operators open or close the pipeline. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention provides a valve handle locking protection device and method for ship pipeline valves, which not only improves the safety of ship piping systems and reduces the accident rate, but also has low site requirements and strong applicability.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] A valve handle locking and protection device for marine pipeline valves includes a locking rod, a chain, and a protective housing. The protective housing includes two protective covers, which are rotatably and fixedly connected by a connecting rotating mechanism. Each of the two protective covers has a latch on its upper end face and a slot and an arc-shaped claw on its lower end face. A locking rod is provided on the side of one of the protective covers, and the locking rod is connected to the protective housing by the chain.

[0007] Furthermore, a locking mechanism is provided at the end of the locking rod that is not connected to the chain.

[0008] Furthermore, the locking mechanism includes a rotating shaft, a receiving cavity, and a locking block. The receiving cavity is a U-shaped groove. The two ends of the rotating shaft are fixedly connected to the two side plates of the U-shaped groove, respectively. The middle part of the locking block is rotatably fixedly connected to the rotating shaft. The distance from the end of the locking block to the rotating shaft is less than the distance from the bottom of the U-shaped groove to the rotating shaft.

[0009] Furthermore, the latch is a semi-circular ring structure with both ends fixed to the protective cover. When the device is in the locked state, the locking rod passes through the latches on the two protective covers.

[0010] Furthermore, the slot is a U-shaped groove formed by two parallel vertical plates and a protective cover.

[0011] Furthermore, an arc-shaped claw is provided on each side of the slot. The arc-shaped claw includes a connecting rod and a clamping part. One end of the connecting rod is fixed to the lower end face of the protective cover, and the other end of the connecting rod is connected to the clamping part. The clamping part is a semi-circular ring. The arc-shaped claws on the two protective covers match each other, and the inner radius of the semi-circular ring is equal to the outer radius of the pipe.

[0012] Furthermore, a semi-circular hole is provided at the center of each of the two protective shells at the connection point.

[0013] The present invention also provides a method for locking and protecting valve handles of marine pipeline valves, the method comprising the following steps:

[0014] S1. Rotate the protective cover to bend it. At this time, the corresponding arc claws on the two protective covers will disengage. Then, align the arc claws with the pipe and the valve handle with the slot.

[0015] S2. Rotate the protective cover in the opposite direction until the arc-shaped claws fit and are fixed on the pipe and the valve handle is engaged in the groove. At this time, the protective cover has a flat structure.

[0016] S3. Pass the end of the locking bar that is not connected to the chain through the two locks on the protective housing in sequence, and then lock it with the locking mechanism to prevent the locking bar from disengaging from the locks;

[0017] S4. After the pipeline operation is completed, release the locking rod and the latch, rotate the protective cover to detach the entire protective device from the pipeline, and restore the valve to its original state;

[0018] S5. After tidying up the protective device, store it in the designated location for future use.

[0019] According to the above technical solution, the present invention has the following advantages:

[0020] 1. With the assistance of this device, the opening or closing of valve handles in pipelines can be ensured simply and effectively, avoiding safety accidents caused by human error or unintentional collisions, further improving on-site work safety, and also indirectly improving production efficiency.

[0021] 2. The device is simple to manufacture, has a low cost, is lightweight and convenient, can be reused, and has low requirements for the site, making it highly applicable.

[0022] 3. The device can be operated without special training and requires no additional cost; training and operation costs are almost zero. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a valve handle locking protection device for marine pipeline valves according to the present invention;

[0024] Figure 2 This is a schematic diagram of the usage status of a valve handle locking protection device for marine pipeline valves according to the present invention;

[0025] Figure 3 This is a schematic diagram of the locking mechanism in this invention. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific examples, so as to make a clearer understanding of its structural type and usage, but this should not be used to limit the scope of protection of the present invention patent.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, a valve handle locking and protection device for marine pipeline valves includes a locking rod 1, a chain 2, and a protective housing 3. The protective housing 3 includes two protective covers 4, which are rotatably and fixedly connected by a connecting rotating mechanism 5. Two latches 6 are provided on the upper end face of each of the two protective covers 4, and a slot 7 and an arc-shaped claw 8 are provided on the lower end face of each of the two protective covers 4. The slot 7 is used to lock the valve handle, and when the arc-shaped claw 8 below the protective cover 4 is in action, they are locked together on the pipeline to ensure that the valve handle is locked and will not rotate. Two locking rods 1 are provided on the side of one of the protective covers 4, and the locking rods 1 are connected to the protective housing 3 by the chain 2.

[0028] Furthermore, the end of the locking rod 1 that is not connected to the chain 2 is provided with a locking mechanism 9.

[0029] Furthermore, the locking mechanism 9 includes a rotating shaft 10, a receiving cavity 11, and a locking block 12. The receiving cavity 11 is a U-shaped groove. The two ends of the rotating shaft 10 are fixedly connected to the two side plates of the U-shaped groove, respectively. The middle part of the locking block 12 is rotatably fixedly connected to the rotating shaft 10. The distance from the end of the locking block 12 to the rotating shaft 10 is less than the distance from the bottom of the U-shaped groove to the rotating shaft 10.

[0030] Furthermore, the latch 6 is a semi-circular ring structure with both ends fixed on the protective cover 4. When the device is in the locked state, the locking rod 1 passes through the latch 6 on the two protective covers 4, and the locking block 12 rotates laterally to prevent the locking rod 1 from disengaging from the latch 6.

[0031] Furthermore, the slot 7 is a U-shaped groove formed by two parallel vertical plates and the protective cover 4.

[0032] Furthermore, an arc-shaped claw 8 is provided on each side of the slot 7. The arc-shaped claw 8 includes a connecting rod 13 and a clamping part 14. One end of the connecting rod 13 is fixed to the lower end face of the protective cover 4, and the other end of the connecting rod 13 is connected to the clamping part 14. The clamping part 14 is a semi-circular ring. The arc-shaped claws 8 on the two protective covers 4 match each other, and the inner radius of the semi-circular ring is equal to the outer radius of the pipe.

[0033] Furthermore, a semi-circular hole 15 is provided at the center of the connection between the two protective covers 4. In the working state, the two semi-circular holes form a circular hole to accommodate the protruding nut on the valve handle.

[0034] The present invention also provides a method for locking and protecting valve handles of marine pipeline valves, the method comprising the following steps:

[0035] S1. Rotate the protective cover 4 to make the protective housing 3 bend. At this time, the corresponding arc claws 8 on the two protective covers 4 will disengage. Then, align the arc claws 8 with the pipe, valve handle and slot 7.

[0036] S2. Rotate the protective cover 4 in the opposite direction until the arc claw 8 fits and is fixed on the pipeline and the valve handle is engaged in the slot 7. At this time, the protective cover 3 has a flat structure.

[0037] S3. Pass the end of the locking rod 1 that is not connected to the chain 2 through the two lock buckles 6 on the two protective covers 4 in sequence, and then lock it by the locking mechanism 9 to prevent the locking rod 1 from disengaging from the lock buckle 6;

[0038] S4. After the pipeline operation is completed, release the locking state of locking rod 1 and locking buckle 6, rotate the protective cover 4 to make the entire protective device detach from the pipeline, and restore the valve to its original state.

[0039] S5. After tidying up the protective device, store it in the designated location for future use.

[0040] Undoubtedly, the present invention may have other similar structural compositions and uses besides the embodiments described above. In summary, the present invention also includes other modifications and substitutions that will be obvious to those skilled in the art.

Claims

1. A valve handle locking protection device for marine pipeline valves, characterized in that, The device includes a locking rod, a chain, and a protective housing. The protective housing comprises two protective covers, which are rotatably and fixedly connected by a rotating mechanism. Each of the two protective covers has a latch on its upper surface and a slot and an arc-shaped claw on its lower surface. A locking rod is located on the side of one of the protective covers and is connected to the protective housing via the chain. The end of the locking rod not connected to the chain has a locking mechanism, which includes a rotating shaft, a receiving cavity, and a locking block. The receiving cavity is a U-shaped groove. Both ends of the rotating shaft are fixedly connected to the two side plates of the U-shaped groove. The middle part of the locking block is rotatably and fixedly connected to the rotating shaft. The distance from the end of the locking block to the rotating shaft is... The distance from the bottom of the U-shaped groove to the rotation axis is less than that of the locking mechanism. The latch is a semi-circular ring structure with both ends fixed to the protective cover. When the device is in the locked state, the locking rod passes through the latches on the two protective covers. The slot is a U-shaped groove formed by two parallel vertical plates and the protective cover. An arc-shaped claw is provided on each side of the slot. The arc-shaped claw includes a connecting rod and a clamping part. One end of the connecting rod is fixed to the lower end face of the protective cover, and the other end of the connecting rod is connected to the clamping part. The clamping part is a semi-circular ring. The arc-shaped claws on the two protective covers match each other. The inner radius of the semi-circular ring is equal to the outer radius of the pipe. A corresponding semi-circular hole is provided at the center of the connection between the two protective covers.

2. A method for locking and protecting valve handles in marine pipeline valves, characterized in that, The method of using the valve handle locking protection device for marine pipeline valves according to claim 1 includes the following steps: S1. Rotate the protective cover to bend it. At this time, the corresponding arc claws on the two protective covers will disengage. Then, align the arc claws with the pipe and the valve handle with the slot. S2. Rotate the protective cover in the opposite direction until the arc-shaped claws fit and are fixed on the pipe and the valve handle is engaged in the groove. At this time, the protective cover has a flat structure. S3. Pass the end of the locking bar that is not connected to the chain through the two locks on the protective housing in sequence, and then lock it with the locking mechanism to prevent the locking bar from disengaging from the locks; S4. After the pipeline operation is completed, release the locking rod and the latch, rotate the protective cover to detach the entire protective device from the pipeline, and restore the valve to its original state; S5. After tidying up the protective device, store it in the designated location for future use.

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