CN104153654A - Mechanical lock for disc type handle valve - Google Patents

Abstract

A disc-shaped handle valve mechanical lock, the lock includes at least one locking rod 1 and a locking rod fixing device, the end of one end of the locking rod 1 is set as a hook 11, and the end of the other end of the locking rod 1 is provided with a screw thread Or bolt lockhole 5, one end that has screw thread or bolt lockhole 12 is fixed on the valve body 8 of valve by fixture, and fixture includes a fixed card 2 and compression nut 3 or latch lock, and fixed card 2 is provided with The locking rod passes through the hole 6; another technical solution of the present invention is that the end of one end of the locking rod 1 is set as a straight rod, and the fixing device includes a positioning card 4 and a fixing card 2 and a compression nut 3 or a latch lock Hole 6 has the advantages of simple structure, convenient operation and higher safety.

Description

Disc handle valve mechanical lock

technical field

The invention relates to a locking device, in particular to a disc-shaped handle valve mechanical lock. 

Background technique

As we all know, the safe production of power stations is very important. The units of hydropower stations operate frequently, and the units undergo frequent overhauls. According to the power production requirements of the hydropower station, there are basically two unit inspections every week, and there are many operations for daily defect elimination. Quarantine is one of the main tasks of our operators on a daily basis. As an effective isolation point, disc handle valves are frequently used in hydropower stations. According to the "Electricity Safety Production Regulations", such valves must be locked. At present, most hydropower stations generally use chain winding and locking to lock such valves. Whenever the valve is operated in isolation, the operator has to carry a large number of chains and locks, which is not only heavy, but also brings a lot of inconvenience to the operation, increasing the work tasks and prolonging the working hours. Not only that, if the chain is wound in an improper way, the purpose of locking will not be achieved at all, and the safety hazard is obvious.

Contents of the invention

The technical problem to be solved by the present invention is to provide a disc-shaped handle valve mechanical lock with simple structure, convenient operation and higher safety in view of the above existing defects and deficiencies.

The technical solution of the present invention is to provide a disc-shaped handle valve mechanical lock with the following structure. The lock includes at least one lock rod and a lock rod fixing device, the end of one end of the lock rod is set as a hook, and the other end of the lock rod is provided with a thread or a bolt lock hole, with a thread or a bolt lock hole One end of the valve is fixed on the valve body of the valve through a fixing device. The fixing device includes a fixing card and a compression nut or a latch lock hole, and the fixing card is provided with a hole through which a locking rod passes.

There is another technical solution for the mechanical lock of disc handle valve in the present invention. The lock includes one less lock bar and a lock bar fixing device. The end of one end of the lock bar is set as a straight bar, and the other end of the lock bar One end is provided with a thread or a bolt lock hole, and the end with a thread or a bolt lock hole is fixed on the valve body of the valve through a fixing device. The fixing device includes a positioning card, a fixing card and a compression nut or a bolt lock hole , the positioning card and the fixed card are provided with locking rod passing holes.

After adopting the above structure, compared with the prior art, the present invention has the advantages of simple structure, convenient operation and higher safety.

As a supplement and improvement of the above-mentioned technical solution, the present invention also has the following features and advantages:

Preferably, there are three locking rods, the fixing card is arranged in a triangle, and the triangular fixing card is provided with three locking rod passing holes. This structure mainly uses the principle that the triangle is the most fixed, and the three locking rods form a triangular lock shape, and the locking is more stable and safe.

Description of drawings

FIG. 1 is a schematic structural view of Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of Embodiment 2 of the present invention;

In the figure: 1. Lock rod, 11. Hook, 2. Fixed card, 3. Nut, 4. Positioning card, 5. Pin lock hole, 6. Lock rod goes through the hole, 7. Valve handle, 8. Valve body .

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

Embodiment one

As shown in Figure 1, a disc-shaped handle valve mechanical lock, the lock includes at least one lock bar 1 and a lock bar fixing device, the end of one end of the lock bar 1 is set as a hook 11, the lock bar The end of the other end of 1 is provided with a threaded or latch lock hole 5, and one end with a thread or latch lock hole 12 is fixed on the valve body 8 of the valve through a fixing device. The fixing device includes a fixing card 2 and a pressing A tight nut 3 or a latch lock, and the fixed card 2 is provided with a lock rod through hole 6 . As a preference, in this embodiment, the number of locking rods 1 is set to three, the fixed card 2 is arranged in a triangular shape, and three locking rod passing holes 6 corresponding to the locking rods are arranged on the triangular fixing card 2

During use, the crotch 11 of three locking rods 1 is hooked on the valve handle 7, and its main rod passes through the locking rods on the triangular fixed card 2 respectively and passes through the hole 6, and then, the locking rod 1 is tightened with the fastening nut 3. Fix on the fixed card 2 or lock the locking bar 1 through the latch lock hole 5 .

Embodiment two

As shown in Figure 2, a disc-shaped handle valve mechanical lock, the lock includes at least one lock bar 1 and a lock bar fixing device, the end of one end of the lock bar 1 is set as a straight bar, the lock bar 1 The end of the other end is provided with a screw thread or a latch lock hole 5, and one end with a thread or a latch lock hole 5 is fixed on the valve body 8 of the valve through a fixing device, and the fixing device includes a positioning card 4 and a fixing The card 2 and the compression nut 3 or the latch lock hole 5, the positioning card 4 and the fixed card 2 are provided with a lock bar passing hole 6 . In this embodiment, the number of locking levers 1 is set to three, the positioning card 4 and the fixing card 2 are arranged in a triangle shape, and corresponding The three locking rods pass through holes 6.

When in use, insert the three locking rods 1 into the space of the valve handle 7, the main rods respectively pass through the locking rods of the triangular positioning card 4 through the holes 6, and then pass through the locking rods on the triangular fixed card 2 through the holes 6 , Then, fasten the locking bar 1 on the fixed card 2 with the fastening nut 3 or lock the locking bar 1 through the latch lock hole 5 .

Claims (4)

1. A disc-shaped handle valve mechanical lock, characterized in that the lock includes at least one locking rod (1) and a locking rod fixing device, and the end of one end of the locking rod (1) is set as a hook (11 ), the other end of the lock rod (1) is provided with a threaded or latch lock hole (5), and one end with the thread or latch lock hole (5) is fixed to the valve body (8) of the valve through a fixing device Above, the fixing device includes a fixing card (2) and a compression nut (3) or a latch lock hole (5), and the fixing card (2) is provided with a lock rod passing hole (6). 2. The disc-shaped handle valve mechanical lock according to claim 1, characterized in that, the number of said locking rods (1) is set to three, the said fixing cards (2) are set to be triangular, and said triangular fixing cards (2) Three locking rod passing holes (6) corresponding to the locking rod (1) are provided. 3. A mechanical lock for disc-shaped handle valves, characterized in that the lock includes at least one locking rod (1) and a locking rod fixing device, and the end of one end of the locking rod (1) is set as a straight rod, so The end of the other end of the lock rod (1) is provided with a thread or a bolt lock hole (5), and the end with the thread or the bolt lock hole (5) is fixed on the valve body (8) of the valve through a fixing device, so The fixing device includes a positioning card (4) and a fixing card (2) and a compression nut (3) or a latch lock hole (5), and the positioning card (4) and the fixing card (2) are provided with The locking rod goes through the hole (6). 4. The disc-shaped handle valve mechanical lock according to claim 3, characterized in that, there are three locking rods (1), and the positioning card (4) and the fixing card (2) are respectively It is arranged as a triangle, and three corresponding locking rod passing holes (6) are provided on the triangular positioning card (4) and the triangular fixing card (2).