CN115574142A - Device and method for locking and protecting valve handle of ship pipeline valve - Google Patents

Abstract

The invention discloses a locking protection device for a valve handle of a ship pipeline valve, which comprises a locking rod, a chain and a protection shell, wherein the protection shell comprises two protection shells, the two protection shells are connected in a rotatable and fixed manner through a connecting and rotating mechanism, the upper end surfaces of the two protection shells are respectively provided with a lock catch, the lower end surfaces of the two protection shells are respectively provided with a clamping groove and an arc-shaped claw, the side surface of one protection shell is provided with the locking rod, and the locking rod is connected with the protection shells through the chain; the invention also discloses a locking protection method for the valve handle of the ship pipeline valve. The invention can not only improve the safety of the ship piping system and reduce the accident rate, but also has low requirement on the field and strong applicability.

Description

Device and method for locking and protecting valve handle of ship pipeline valve

technical field

The invention relates to the field of shipbuilding, in particular to a locking protection device and method for a valve handle of a ship pipeline valve.

Background technique

During the construction and use of ships, the piping system is an indispensable part. It is the "blood" of the ship's power and connects various equipment. The pipeline system is used to transport various liquids and gases, to ensure the normal operation of the power plant, to ensure the safe operation of the ship and to meet the normal living needs of the people on board.

The control of the pipeline is controlled by the valve parts. When people walk around, they often touch the valve handle by mistake to make it turn and open or close the valve parts. In the face of this situation, a warning sign of "no closing" is often used. Or send a special person to take care of it. However, the warning signs are often taken off by unrelated personnel or automatically fall off, causing construction risks due to misoperation; the special personnel in charge will also temporarily walk away in case of emergency, causing other operators to open or close the pipeline transportation, resulting in safety accidents .

Contents of the invention

In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a valve handle lock protection device and method for ship pipeline valves, which can not only improve the safety of the use of ship piping systems and reduce the incidence of accidents, but also meet the requirements of the site. Low, strong applicability.

In order to achieve the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

A valve handle lock protection device for marine pipeline valves, the device includes a lock rod, a chain and a protection housing, the protection housing includes two protection housings, and the two protection housings are movable Rotationally fixed connection, lock buckles are provided on the upper end surfaces of the two protective covers, card slots and arc-shaped claws are provided on the lower end surfaces of the two protective covers, and a A locking bar, the locking bar is connected with the protective shell through a chain.

Further, a locking mechanism is provided at one end of the locking bar that is not connected to the chain.

Further, the locking mechanism includes a rotating shaft, an accommodating cavity and a block, the accommodating cavity is a U-shaped groove, and the two ends of the rotating shaft are respectively fixedly connected with the two side plates of the U-shaped groove, and the locking The middle part of the block is rotatably fixedly connected to the rotating shaft, and the distance from the end of the block to the rotating shaft is smaller than the distance from the bottom of the U-shaped groove to the rotating shaft.

Further, the lock buckle is a semicircular ring structure with both ends fixed on the protective shell, and when the device is in a locked state, the lock rod passes through the lock buckles on the two protective shells.

Further, the card slot is a U-shaped slot surrounded by two parallel vertical plates and a protective cover.

Further, an arc-shaped claw is provided on both sides of the card slot, and the arc-shaped claw includes a connecting rod and a clamping part, one end of the connecting rod is fixed on the lower end surface of the protective cover, and the connecting rod The other end of the rod is connected with the clamping part, the clamping part is a semicircular ring, the arc-shaped claws on the two protective covers match each other, and the inner radius of the semicircular ring is equal to that of the pipe outer radius.

Further, an opposite semicircular hole is provided at the center of the joint of the two protective shells.

The present invention also provides a method for locking and protecting the valve handle of a ship's pipeline valve. The method includes the following steps:

S1. Rotate the protective case so that the protective case is bent. At this time, the corresponding arc-shaped claws on the two protective cases are separated, and then the arc-shaped claws correspond to the pipe, the valve handle and the slot;

S2. Reversely rotate the protective cover until the arc-shaped claw fits and is fixed on the pipe, and the valve handle is engaged in the card slot. At this time, the protective shell has a flat structure;

S3. Pass the end of the lock bar that is not connected to the chain through the locks on the two protective covers in turn, and then lock it through the locking mechanism to prevent the lock bar from being separated from the lock;

S4. After the pipeline operation is completed, release the locked state of the locking lever and the lock, rotate the protective cover to separate the protective device from the pipeline as a whole, and restore the state of the valve parts;

S5. After sorting out the protection device, store it in the designated place for the next use.

According to the above technical scheme, the present invention has the following advantages:

1. With the assistance of this device, it is simple and effective to ensure the opening or closing of the valve handle of the pipeline valve, avoiding safety accidents caused by personnel misoperation or unintentional collision, further improving the work safety on site, and indirectly improving production efficiency.

2. The device is easy to manufacture, the cost is very low, it is light and convenient, and can be used repeatedly. At the same time, the use of the device has very low requirements on the site and has strong applicability;

3. The device can be operated without special training, and there is no additional cost, and the training and operation costs are almost zero.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a valve handle locking protection device for a ship pipeline valve according to the present invention;

Fig. 2 is a schematic diagram of the use state of a valve handle locking protection device for a ship pipeline valve according to the present invention;

Fig. 3 is a structural schematic diagram of the locking mechanism in the present invention.

detailed description

The present invention will be further elaborated below in conjunction with the accompanying drawings and specific examples, in order to understand its structure type and usage mode more clearly, but this cannot limit the protection scope of the patent of the present invention.

As shown in Fig. 1, Fig. 2 and Fig. 3, a valve handle lock protection device for ship pipeline valves, the device includes a lock rod 1, a chain 2 and a protection housing 3, the protection housing 3 includes two protection The casing 4, the two protective casings 4 are rotatably fixedly connected by connecting the rotating mechanism 5, and two locks 6 are arranged on the upper end faces of the two protective casings 4, and the two protective casings The lower end surface of 4 is provided with a card slot 7 and an arc-shaped claw 8. The card slot 7 is used to block the valve handle. The handle is locked and will not rotate, and two locking bars 1 are arranged on the side of one of the protective casings 4, and the locking levers 1 are connected with the protective casing 3 through a chain 2.

Further, a locking mechanism 9 is provided at the end of the locking rod 1 not connected to the chain 2 .

Further, the locking mechanism 9 includes a rotating shaft 10, an accommodating cavity 11 and a block 12, the accommodating cavity 11 is a U-shaped groove, and the two ends of the rotating shaft 10 are respectively connected with the two side plates of the U-shaped groove. Fixedly connected, the middle part of the clamping block 12 is rotatably fixedly connected to the rotating shaft 10, and the distance from the end of the clamping block 12 to the rotating shaft 10 is smaller than the distance from the bottom of the U-shaped groove to the rotating shaft 10.

Further, the lock buckle 6 is a semi-circular ring structure with both ends fixed on the protective shell 4. When the device is in the locked state, the locking rod 1 passes through the locks on the two protective shells 4. The buckle 6 and the block 12 are rotated laterally to prevent the lock rod 1 from being separated from the lock buckle 6 .

Further, the card slot 7 is a U-shaped slot surrounded by two parallel vertical plates and the protective cover 4 .

Further, an arc-shaped claw 8 is provided on both sides of the card slot 7, and the arc-shaped claw 8 includes a connecting rod 13 and a clamping portion 14, and one end of the connecting rod 13 is fixed on the protective cover 4 The other end of the connecting rod 13 is connected to the clamping part 14, the clamping part 14 is a semicircular ring, and the arc-shaped claws 8 on the two protective covers 4 match each other, so The inner radius of the semicircular ring is equal to the outer radius of the pipe.

Further, a relative semicircular hole 15 is provided at the center of the junction of the two protective casings 4. In the working state, the two semicircular holes form a circular hole for accommodating the protrusion on the valve handle. nuts.

The present invention also provides a method for locking and protecting the valve handle of a ship's pipeline valve. The method includes the following steps:

S1. Rotate the protective case 4 so that the protective case 3 is in a bent shape. At this time, the corresponding arc-shaped claws 8 on the two protective cases 4 are disengaged, and then the arc-shaped claws 8 correspond to the pipes, valve handles and slots 7. ;

S2. Reversely rotate the protective cover 4 until the arc-shaped claw 8 fits and is fixed on the pipeline, and the valve handle is engaged in the slot 7. At this time, the protective shell 3 has a flat structure;

S3. Pass the end of the lock bar 1 that is not connected with the chain 2 through the lock catches 6 on the two protective casings 4 in turn, and then lock the lock bar 1 and the lock buckle 6 through the locking mechanism 9 to disengage;

S4. After the pipeline operation is completed, release the locking state of the locking lever 1 and the locking buckle 6, rotate the protective cover 4 to separate the protective device from the pipeline as a whole, and restore the state of the valve parts;

S5. After sorting out the protection device, store it in the designated place for the next use.

Undoubtedly, the present invention has other similar structural compositions and usages besides the above-mentioned embodiments. In a word, the present invention also includes other transformations and substitutions that are obvious to those skilled in the art.

Claims (8)

1. The utility model provides a boats and ships pipeline valve handle locking protection device, its characterized in that, the device include locking lever, chain and protection casing, the protection casing includes two protection housing, two protection housing are rotatable fixed connection through connecting slewing mechanism the up end of two protection housing all is equipped with the hasp, all is equipped with draw-in groove and arc claw at the lower terminal surface of two protection housing, is equipped with the locking lever in the side of one of them protection housing, the locking lever is connected with the protection casing through the chain.

2. The marine pipeline valve piece valve handle lock protection device of claim 1, wherein the end of the locking bar not connected to the chain is provided with a locking mechanism.

3. The locking and protecting device for the valve handle of the valve of the ship pipeline valve piece as claimed in claim 2, wherein the locking mechanism comprises a rotating shaft, an accommodating cavity and a clamping block, the accommodating cavity is a U-shaped groove, two ends of the rotating shaft are respectively and fixedly connected with two side plates of the U-shaped groove, the middle part of the clamping block is rotatably and fixedly connected with the rotating shaft, and the distance from the end part of the clamping block to the rotating shaft is smaller than the distance from the bottom of the U-shaped groove to the rotating shaft.

4. The locking protection device for the valve handle of the marine pipeline valve member, according to claim 1, is characterized in that the lock catch is a semicircular ring structure with two ends fixed on the protection housings, and when the device is in a locking state, the lock rod penetrates through the lock catches on the two protection housings.

5. The locking protection device for the valve handle of the ship pipeline valve piece as claimed in claim 1, wherein the clamping groove is a U-shaped groove body formed by two parallel vertical plates and a protection cover shell in a surrounding mode.

6. The locking and protecting device for the valve handle of the valve of the ship pipeline valve piece is characterized in that two arc-shaped claws are arranged on two sides of the clamping groove respectively, each arc-shaped claw comprises a connecting rod and a clamping part, one end of each connecting rod is fixed on the lower end face of the protecting cover shell, the other end of each connecting rod is connected with the clamping part, each clamping part is a semicircular ring piece, the arc-shaped claws on the two protecting cover shells are matched with each other, and the inner radius of each semicircular ring piece is equal to the outer radius of the pipeline.

7. The marine pipeline valve stem locking protector of claim 1 wherein an opposing semi-circular hole is provided centrally at the junction of said two protective casings.

8. A method for locking and protecting a valve handle of a ship pipeline valve, which is characterized by using the device for locking and protecting the valve handle of the ship pipeline valve as claimed in any one of claims 1 to 7, and comprises the following steps:

s1, rotating the protection housings to enable the protection housings to be bent, separating corresponding arc claws on the two protection housings at the moment, and then enabling the arc claws to correspond to the pipeline and the valve handle to correspond to the clamping grooves;

s2, reversely rotating the protective housing until the arc-shaped claws are attached to and fixed on the pipeline and the valve handle is clamped in the clamping groove, wherein the protective housing is of a flat structure;

s3, enabling one end of the lock rod, which is not connected with the chain, to sequentially penetrate through the lock catches on the two protective housings, and then locking through a locking mechanism to prevent the lock rod from being separated from the lock catches;

s4, after the pipeline operation is finished, the locking state of the lock rod and the lock catch is released, the protective housing is rotated to enable the protective device to be integrally separated from the pipeline, and the state of the valve is restored;

and S5, storing the protective device at a specified position after finishing the arrangement for the next use.

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