CN112709863A

CN112709863A - Ball head and pull-push bolt anti-disengaging structure for quick valve

Info

Publication number: CN112709863A
Application number: CN202011572769.2A
Authority: CN
Inventors: 张国锋; 郝宏达; 陈文鑫; 董霞; 张娜; 范相辉; 顾振军; 王军刚; 张建宝; 陆钰珍; 张锦彬; 蒋亚琴; 邵学军; 李鹏飞
Original assignee: LANZHOU HIGH PRESSURE VALVE CO Ltd
Current assignee: LANZHOU HIGH PRESSURE VALVE CO Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-27

Abstract

A ball head and a pull-push bolt anti-disengaging structure for a quick valve are disclosed, wherein a clamping ring groove is formed in the ball head and is used for being matched with a clamping ring, and the clamping ring is of a two-half-ring structure which is independently and symmetrically arranged; the pull-push bolt is respectively in the inner space formed by the valve core and the gland after being in threaded connection with the clamping ring. The invention solves the problem that the parts are loosened due to vibration caused by the continuous change of the stress state of the valve closing member in high-speed motion, thereby achieving the result that the parts moving at high speed cannot be loosened and stably run. Has the advantages of simple and practical structure, simple installation, etc.

Description

Ball head and pull-push bolt anti-disengaging structure for quick valve

Technical Field

The invention relates to the technical field of mechanical valve manufacturing, in particular to an anti-disengaging structure capable of preventing a ball head and a pull-push bolt from disengaging under a high-speed vibration working condition.

Background

In the production and manufacture of valves in the field of mechanical manufacture, the general valves are slow in operation speed and small in vibration, and do not adopt an anti-loosening structure, but for the valves with closing members running at high speed, how to prevent parts from loosening in the operation process is of great significance. According to the Newton's law of motion of physics, an object moving at a high speed has large energy, and can cause large damage to other objects. The fast valve is a valve with extremely fast opening speed, and the closing member can be opened within second speed. During the opening period, the closing member is subjected to particularly high accelerations, which generate large inertial forces that constantly vibrate the bolt. The bolt for fixing the ball head can be loosened for a long time.

Disclosure of Invention

The invention provides a ball head for a quick valve and a pull-push bolt anti-disengaging structure, which solve the problem that parts are loosened due to vibration caused by the continuous change of the stress state of a valve closing member in high-speed motion.

The technical scheme adopted by the invention is as follows:

a ball head and a pull-push bolt anti-disengaging structure for a quick valve are disclosed, wherein a clamping ring groove is formed in the ball head and is used for being matched with a clamping ring, and the clamping ring is of a two-half-ring structure which is independently and symmetrically arranged; the pull-push bolt is respectively in the inner space formed by the valve core and the gland after being in threaded connection with the clamping ring.

The edges of the two adjacent semi-circular ring structures are straight edges.

The gland is of a cylindrical structure, a groove is formed in one side end face of the gland, a ball head through hole is formed in the center of the groove, and bolt through holes perpendicular to the center of the ball head through hole are symmetrically formed in the wall of the groove.

The valve core body is provided with a groove and a boss in sequence from inside to outside, the boss is provided with an elliptical groove surrounded by inner side faces, and two ends of the elliptical groove are interrupted by the through groove; and a bolt rotating hole is formed in the valve core body which is vertical to the center of the boss, and the diameter of the bolt rotating hole is smaller than that of the head of the pulling and pushing bolt.

The invention solves the problem that the parts are loosened due to vibration caused by the continuous change of the stress state of the valve closing member in high-speed motion, thereby achieving the result that the parts moving at high speed cannot be loosened and stably run. Has the advantages of simple and practical structure, simple installation, etc.

Drawings

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

FIG. 2 is a schematic view of a ball head structure according to the present invention;

FIG. 3 is a schematic view of a clamping ring according to the present invention;

FIG. 4 is a schematic cross-sectional view of a valve cartridge according to the present invention;

FIG. 5 is a left side view of FIG. 4;

FIG. 6 is a schematic sectional view of the gland of the present invention;

fig. 7 is a left side view of fig. 6.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, 2 and 3, the ball head and the pull-push bolt anti-disengaging structure for the quick valve is characterized in that a clamping ring groove 1-1 is formed in the ball head 1 and is used for being matched with a clamping ring 6, and the clamping ring 6 is of two independent and symmetrical ring structures; the pull-push bolt 5 is in the inner space formed by the valve core 4 and the gland 3 after being respectively in threaded connection with the clamping ring 6 through the threaded hole 6-1 on the clamping ring 6. The gland 3 and the valve core 4 are coupled by a fastener 2.

The edges of the two adjacent semi-circular ring structures are straight edges. When the two semi-circular ring structures move under the driving of the pulling and pushing bolt 5, the guiding function is realized.

Referring to fig. 6 and 7, the gland 3 is of a cylindrical structure, a groove is formed in one side end face of the gland, a ball head through hole 3-1 is formed in the center of the groove, and bolt through holes 3-3 perpendicular to the center of the ball head through hole 3-1 are symmetrically formed in the side wall of the groove and used for pulling and pushing a bolt 5 to pass through. The lower wall of the groove is provided with a step fastening hole 3-2 for connecting the gland 3 and the valve core 4.

Referring to fig. 4 and 5, the valve core 4 body is provided with a groove 4-5 (for placing the ball head 1) and a boss 4-7 in sequence from inside to outside, the boss is provided with an elliptical groove surrounded by an inner side surface 4-4, two ends of the elliptical groove are broken by the groove 4-3, the valve core 4 body which is perpendicular to the center of the boss is provided with a bolt rotating hole 4-1, and the pulling and pushing bolt 5 passes through the bolt rotating hole 4-1 and passes through the groove 4-3 and then is connected with a clamping ring 6 arranged in the elliptical groove, so as to drive the clamping ring 6 to move. The diameter of the bolt rotating hole 4-1 is smaller than the diameter of the head of the pull-push bolt 5 so as to prevent the pull-push bolt 5 from falling out. The valve core 4 body at the periphery of the boss 4-7 is provided with a threaded hole 4-6, and the gland 3 and the valve core 4 are connected into a whole by a bolt through the threaded hole 4-6 and a step fastening hole 3-2 on the gland 3.

Referring to fig. 4, 5, 6 and 7, two inner spaces are formed by the valve core 4 and the gland 3, wherein one space consists of an outer side surface 3-4 of the inner space, a top surface structure 3-5 of the inner space and an inner space 4-2 and is used for placing the pull-push bolt 5 in advance; the other space is composed of an elliptical groove enclosed by an inner space top surface structure 3-5 and an inner side surface 4-4, and a clamping ring 6 is arranged in the space in advance. In the process of coupling the gland 3 and the spool 4 with the fastener 2, it is necessary to ensure that the bolt rotation hole 4-1 of the spool 4 and the bolt of the bonnet 3 are aligned through the hole 3-3. And (3) screwing the pull-push bolt 5 to separate the clamping ring 6, loading the ball head 1, reversely screwing the pull-push bolt 5 to move the clamping ring 6 in opposite directions, and finally contacting and limiting with the clamping ring groove 1-1 of the ball head 1 to finish assembly.

Claims

1. The utility model provides a bulb and pull and push away bolt anti-disengaging structure for quick-acting valve which characterized in that: the ball head 1 is provided with a clamping ring groove 1-1 which is used for being matched with a clamping ring 6, and the clamping ring 6 is of two semi-ring structures which are independently and symmetrically arranged; the pull-push bolts 5 are respectively in threaded connection with the clamping ring 6 and then are positioned in an inner space formed by the valve core 4 and the gland 3.

2. The anti-slip structure for a ball head and a pull-push bolt for a quick valve according to claim 1, wherein: the edges of the two adjacent semi-circular ring structures are straight edges.

3. The anti-slip structure for a ball head and a pull-push bolt for a quick valve according to claim 1, wherein: the gland 3 is of a cylindrical structure, a groove is formed in the end face of one side of the gland, a ball head through hole 3-1 is formed in the center of the groove, and bolt through holes 3-3 perpendicular to the center of the ball head through hole 3-1 are symmetrically formed in the wall of the groove.

4. The anti-slip structure for a ball head and a pull-push bolt for a quick valve according to claim 1, wherein: the valve core 4 body is provided with a groove 4-5 and a boss 4-7 in sequence from inside to outside, the boss is provided with an elliptical groove surrounded by the inner side surface 4-4, and two ends of the elliptical groove are interrupted by a groove 4-3; a bolt rotating hole 4-1 is formed in the valve core 4 body which is perpendicular to the center of the boss, and the diameter of the bolt rotating hole 4-1 is smaller than the diameter of the head of the pull-push bolt 5.