CN-121977085-A - Self-locking ball valve

Abstract

The self-locking ball valve comprises a valve body, a valve ball arranged in the valve body and a valve rod arranged at the upper end of the valve ball, wherein the upper end of the valve rod upwards penetrates out of the valve body, a starting hole is formed in the center of the valve ball, connectors are arranged on the left side and the right side of the valve body, a valve rod seat is arranged on the upper surface of the middle of the valve body, a rotating hole is formed in the center of the upper end face of the valve rod seat, a valve rod hole matched with the valve rod is formed in the center of the bottom of the rotating hole, an arc-shaped control sliding groove is formed in the front side of the bottom of the rotating hole, a plurality of guide holes which are uniformly distributed are formed in the rear side of the bottom of the rotating hole, a starting and closing head is arranged in the center of the upper end face of the valve rod, and a rotating block matched with the rotating hole is fixed on the starting and closing head through a connecting structure. The self-locking ball valve can automatically lock the valve rod under the condition of not using an additional lockset, so that the valve rod cannot rotate, the self-locking effect is realized, the situation of misoperation is effectively avoided, and the safety is improved.

Inventors

• ZHENG LINGFENG
• ZHENG ZHOU

Assignees

• 瓴先科技(浙江玉环)有限公司

Dates

Publication Date

20260505

Application Date

20260212

Claims (7)

1. 1. The self-locking ball valve comprises a valve body, a valve ball arranged in the valve body and a valve rod arranged at the upper end of the valve ball, wherein the upper end of the valve rod penetrates out of the valve body upwards, a starting hole is arranged at the center of the valve ball, joints are arranged at the left side and the right side of the valve body, the self-locking ball valve is characterized in that a valve rod seat is arranged on the upper surface of the middle part of the valve body, a rotating hole is arranged at the center of the upper end face of the valve rod seat, a valve rod hole matched with the valve rod is arranged at the center of the bottom of the rotating hole, an arc-shaped control sliding groove is arranged at the front side of the bottom of the rotating hole, a plurality of guide holes are uniformly distributed at the rear side of the bottom of the rotating hole, a starting and stopping head is arranged at the center of the upper end face of the valve rod, a rotating block matched with the rotating hole is arranged at the upper end face of the starting and stopping head through a connecting structure, the upper end face of the starting and stopping head is higher than the upper surface of the rotating block, a control sliding block matched with the control sliding block is arranged on the lower surface of the rotating block, a plurality of the rotating block is arranged on the lower surface of the guide holes corresponding to the position of the guide holes, the locking hole is larger than the number of the guide holes, the upper end of the locking rod is clamped in one of the valve rod, the guide holes is clamped in the lock hole, the guide holes is arranged at the upper end of the lock rod and is clamped in one of the guide hole, the guide hole and the guide hole is clamped into the guide hole and the guide hole is matched with the upper end and the guide hole.
2. 2. The self-locking ball valve of claim 1, wherein the number of the guide holes is two, the two guide holes are respectively positioned at the left side and the right side of the bottom rear part of the rotary hole, the number of the lock holes is three, two lock holes are positioned right above the two guide holes, and the other lock hole is positioned at the left front side of the lower surface of the rotary block.
3. 3. The self-locking ball valve of claim 1, wherein the connecting structure comprises a connecting hole arranged in the center of the rotating block, the upper end of the opening and closing head upwards penetrates through the connecting hole, an inner limiting hole is formed in the left side wall of the opening and closing head, an outer limiting hole communicated with the inner limiting hole is formed in the outer wall of the rotating block, and a limiting pin is clamped in the outer limiting hole and the inner limiting hole at the same time.
4. 4. The self-locking ball valve of claim 1, wherein the unlocking mechanism comprises an adapter positioned right above the rotating hole, the clamping hole is arranged in the center of the lower end face of the adapter, mutually symmetrical limiting planes are arranged on the outer walls of the left side and the right side of the opening and closing head, matching planes matched with the limiting planes are arranged on the inner walls of the left side and the right side of the clamping hole, a plurality of embedded holes which are uniformly distributed in circumference are arranged on the lower end face of the adapter, magnet columns matched with the embedded holes are arranged in the embedded holes, the lock rod is made of a magnet material, the magnetic poles at the upper end of the lock rod repel the magnetic poles at the lower end of the magnet columns, and handles matched with the lock rod are arranged on the adapter.
5. 5. The self-locking ball valve of claim 4, wherein the upper end of the adapter head is provided with a sliding hole penetrating through the adapter head in the radial direction, the left end of the handle penetrates through the sliding hole in the left direction and is provided with a limiting head, the right end of the handle penetrates through the sliding hole in the right direction, the right end of the handle is provided with a hanging hole penetrating through the adapter head in the radial direction, the handle is connected with a pull ring through the hanging hole, and one side of the pull ring is provided with an elastic notch.
6. 6. The self-locking ball valve of claim 1, wherein the outer wall of the upper end of the locking rod is provided with an introduction conical surface with a narrow upper part and a wide lower part.
7. 7. The self-locking ball valve of claim 1, wherein the outer wall of the lower end of the lock rod is provided with a wide limiting conical surface, the lower end of the spring is sleeved outside the limiting conical surface.

Description

Self-locking ball valve Technical Field The invention relates to the technical field of ball valves, in particular to a self-locking ball valve. Background The ball valve is a common opening and closing valve, and the on-off of a pipeline is realized by rotating the ball valve with an opening hole. The sealing device is simple in structure and good in sealing performance, and is widely applied to various industrial and living scenes. The traditional ball valve handle or valve rod is usually exposed outside, and any personnel can pull the handle easily to change the ball valve state, if the ball valve is used in important places such as chemical industry, gas, in case by mistake open or mistake close, very easily lead to serious problems such as medium leakage, flow interruption, there is serious potential safety hazard, in order to solve above-mentioned problem, some ball valves then can directly install additional tool to lock such as padlock additional on valve rod or handle, not only can lead to ball valve structure complicacy, still can increase the cost, and the tool to lock exposes very easily rust in the external world for a long time, in case the tool to lock rust, even possess the key with the tool to lock adaptation, also can't open the tool to lock, influence the normal use of ball valve. Disclosure of Invention The invention aims to solve the technical problem of providing a self-locking ball valve, which can automatically lock a valve rod under the condition of not using an additional lockset, so that the valve rod cannot rotate, the self-locking effect is realized, the situation of misoperation is effectively avoided, and the safety is improved. In order to achieve the above purpose, the present invention adopts the following technical scheme: The invention discloses a self-locking ball valve which comprises a valve body, a valve ball arranged in the valve body and a valve rod arranged at the upper end of the valve ball, wherein the upper end of the valve rod upwards penetrates out of the valve body, a starting hole is arranged at the center of the valve ball, connectors are arranged on the left side and the right side of the valve body, a valve rod seat is arranged on the upper surface of the middle part of the valve body, a rotating hole is arranged at the center of the upper end surface of the valve rod seat, a valve rod hole matched with the valve rod is arranged at the center of the bottom of the rotating hole, a control sliding groove which is arc-shaped is arranged at the front side of the bottom of the rotating hole, a plurality of guide holes which are uniformly distributed are arranged at the rear side of the bottom of the rotating hole, a starting and stopping head is arranged at the center of the upper end surface of the valve rod, a rotating block matched with the rotating hole is fixed through a connecting structure, the upper end surface of the starting and stopping head is higher than the upper surface of the rotating block, a control sliding block matched with the control sliding groove is arranged on the lower surface of the rotating block, a plurality of lock holes corresponding to the positions of the guide holes are arranged on the lower surface of the rotating block, the number of the locking block, the locking hole is larger than the number of the guide holes, the upper end of the locking rod is clamped in one of the locking rod, the locking rod is clamped in the locking hole, the lower end is clamped in the guide hole, a locking hole is clamped between the lower end of the locking rod and the guide hole and the unlocking mechanism is arranged at the position of the unlocking mechanism and the unlocking mechanism, and the unlocking mechanism is arranged between the unlocking mechanism and the unlocking mechanism. The number of the guide holes is two, the two guide holes are respectively positioned at the left side and the right side of the bottom rear part of the rotary hole, the number of the lock holes is three, wherein the two lock holes are positioned right above the two guide holes, and the other lock hole is positioned at the left front side of the lower surface of the rotary block. The connecting structure comprises a connecting hole arranged in the center of the rotating block, the upper end of the opening and closing head penetrates through the connecting hole upwards, an inner limiting hole is formed in the left side wall of the opening and closing head, an outer limiting hole communicated with the inner limiting hole is formed in the outer wall of the rotating block, and a limiting pin is clamped in the outer limiting hole and the inner limiting hole simultaneously. The unlocking mechanism comprises an adapter positioned right above a rotating hole, a clamping hole is formed in the center of the lower end face of the adapter, mutually symmetrical limiting planes are arranged on the outer walls of the left side and the right side of the opening and closing head