阅读说明：本技术 一种防盗球阀 (Anti-theft ball valve ) 是由 黄洪刚 张柏 于 2020-05-18 设计创作，主要内容包括：本发明公开了一种防盗球阀,包括阀体,所述阀体内设有阀腔,所述阀体设有左通道,所述阀体的右端固定安装有右阀盖,所述右阀盖上设有右通道,所述阀体内转动连接有阀杆,所述阀腔内转动连接有与阀杆的下端固定连接的球芯,所述球芯内沿垂直于阀杆设有连通孔,还包括锁定机构,所述锁定机构包括锁块和密码组件,所述阀体的侧面设有凸块,所述凸块内设有截面均为方形的第一安装槽和第二安装槽,所述锁块滑动连接在第二安装槽内,所述锁块设有伸入阀腔内的两个锁杆,所述密码组件设置在第一安装槽内用于控制锁块运动；该防盗球阀不仅结构简单,而且锁定机构与球芯配合实现防止球阀任意调节和盗用,结构更加可靠。(The invention discloses an anti-theft ball valve which comprises a valve body, wherein a valve cavity is arranged in the valve body, the valve body is provided with a left channel, the right end of the valve body is fixedly provided with a right valve cover, the right channel is arranged on the right valve cover, a valve rod is rotationally connected in the valve body, a ball core fixedly connected with the lower end of the valve rod is rotationally connected in the valve cavity, a communicating hole is formed in the ball core along the direction vertical to the valve rod, the anti-theft ball valve also comprises a locking mechanism, the locking mechanism comprises a locking block and a password assembly, a convex block is arranged on the side surface of the valve body, a first mounting groove and a second mounting groove which are square in cross section are formed in the convex block, the locking block is slidably connected in the second mounting groove, the locking block is provided with two locking rods extending into; the anti-theft ball valve is simple in structure, the locking mechanism is matched with the ball core to prevent the ball valve from being adjusted and stolen at will, and the structure is more reliable.)

1. An anti-theft ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a left passage communicated with the valve cavity is arranged on the left side of the valve body, a right valve cover is fixedly installed at the opening of the right end of the valve cavity of the valve body, a right passage communicated with the valve cavity is arranged on the right valve cover, a valve rod with the lower end extending into the valve cavity is rotatably connected in the valve body, a ball core fixedly connected with the lower end of the valve rod is rotatably connected in the valve cavity, and the ball core is used for controlling the connection and disconnection of the left passage and the right; a communicating hole is formed in the ball core along the direction perpendicular to the valve rod, when the ball valve is opened, the communicating hole and the left channel are in the coaxial position, and when the ball valve is closed, the communicating hole and the left channel are in the vertical position; the valve is characterized by further comprising a locking mechanism, wherein the locking mechanism comprises a locking block and a password assembly, a convex block is arranged on the side face of the valve body, a first mounting groove and a second mounting groove which are square in cross section are formed in the convex block, and the first mounting groove and the second mounting groove are communicated with each other; the locking piece sliding connection is in the second mounting groove, the locking piece is equipped with two locking levers that stretch into the valve intracavity, password component sets up and is used for controlling the locking piece motion in first mounting groove, and when locking state, the ball valve is closed and the locking piece drives two locking levers and stretches into in the intercommunicating pore, and when unlocking state, the locking piece drives two locking levers and leaves the intercommunicating pore.

2. The anti-theft ball valve according to claim 1, wherein the password assembly comprises a rotating shaft and a locking cover, the rotating shaft is rotatably connected in the first mounting groove and arranged along the length direction of the locking block, the rotating shaft is rotatably connected with a plurality of password discs, each password disc is provided with a rotating disc rotatably connected to the rotating shaft, and the outer circumferential side surface of each rotating disc is provided with a groove; the lock cover is fixedly arranged at an opening of the first mounting groove, and a plurality of avoiding grooves for the password disk to extend out are formed in the lock cover; a plurality of ejector rods which are in one-to-one correspondence with the rotary table are arranged on the locking block along the axial direction of the rotary shaft, and a locking spring which is used for forcing the locking block to drive the ejector rods to be abutted against the rotary table is arranged in the second mounting groove; when the locking state is realized, at least one ejector rod is abutted against the circumferential side face of the corresponding rotary table, and when the unlocking state is realized, each ejector rod is abutted against the groove of the corresponding rotary table; and the side surface of the convex block is provided with a limiting notch communicated with the second mounting groove along the movement direction of the locking block, and the side surface of the locking block is provided with a deflector rod extending out of the limiting notch.

3. The anti-theft ball valve according to claim 2, wherein the number of the code discs and the ejector rods is five.

4. The anti-theft ball valve according to claim 1, wherein a handle lever is fixedly mounted to an upper end of the valve stem.

5. The anti-theft ball valve according to claim 1, wherein a convex column is arranged on the side surface of the valve body, the valve rod is rotatably connected in the convex column, a rotary groove is arranged on the outer side of the valve rod by the convex column, a convex shoulder positioned in the rotary groove is radially arranged on the side surface of the valve rod, and a limiting plug sleeved on the valve rod is fixedly arranged at the opening of the rotary groove.

Technical Field

The invention belongs to the technical field of pipeline valves, and particularly relates to an anti-theft ball valve.

Background

Ball valves are widely used in petroleum and natural gas pipelines, and in devices for oil extraction, oil refining, petrochemical industry, chemical fiber, metallurgy, electric power, nuclear power, food, paper making and the like. In many situations, people need to control the valve to prevent other people from opening and closing the valve at will. The anti-theft ball valve is a locking valve which can prevent other people from opening and closing at will and is suitable for being applied to the occasions. At present, a plurality of anti-theft ball valves appear in the market, for example, the national intellectual property office discloses a utility model patent with the patent number of 2014202877155 and the patent name of anti-theft ball valve in 2014, 9, 17. The handle of the anti-theft ball valve is movably connected to the upper end of the valve rod up and down. A longitudinal magnetic locking device for limiting the handle up and down when the handle is pressed down under the closing state of the ball valve and a circumferential locking device for limiting the handle circumferentially when the handle is pressed down under the closing state of the ball valve are arranged between the upper end of the convex neck and the handle. The longitudinal magnetic locking device comprises a strong magnetic pin, a spring, a pin hole transversely formed in the outer peripheral wall of the upper end of the convex neck and a limiting counter bore transversely formed in the inner side wall of the handle. The strong magnetic pin is arranged in the pin hole, and the spring is arranged between the inner end of the strong magnetic pin and the bottom of the pin hole. When the handle is pressed down under the closing state of the ball valve, the outer end of the strong magnetic pin can be accommodated in the limiting counter bore. The anti-theft ball valve has the following defects: one side of a handle of the anti-theft ball valve and one side of a convex neck are longitudinally limited through a strong magnetic pin, and the phenomenon of unbalanced stress can occur on two sides of the handle; and strong magnetism round pin one end holding is in the pinhole, and the other end holding of strong magnetism round pin is in spacing counter sink, and strong magnetism round pin has played the effect to handle vertical spacing and axial spacing, therefore strong magnetism round pin atress is great, and the easy fracture has been prolonged in the live time, influences life.

Disclosure of Invention

The invention aims to provide an anti-theft ball valve which is simple in structure, and more reliable in structure, and a locking mechanism is matched with a ball core to prevent the ball valve from being randomly adjusted and stolen.

In order to achieve the purpose, the invention provides the following technical scheme:

an anti-theft ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a left passage communicated with the valve cavity is arranged on the left side of the valve body, a right valve cover is fixedly installed at the opening of the right end of the valve cavity of the valve body, a right passage communicated with the valve cavity is arranged on the right valve cover, a valve rod with the lower end extending into the valve cavity is rotatably connected in the valve body, a ball core fixedly connected with the lower end of the valve rod is rotatably connected in the valve cavity, and the ball core is used for controlling the connection and disconnection of the left passage and the right; a communicating hole is formed in the ball core along the direction perpendicular to the valve rod, when the ball valve is opened, the communicating hole and the left channel are in the coaxial position, and when the ball valve is closed, the communicating hole and the left channel are in the vertical position; the locking mechanism comprises a locking block and a password assembly, a convex block is arranged on the side face of the valve body, a first mounting groove and a second mounting groove which are square in cross section are formed in the convex block, and the first mounting groove and the second mounting groove are communicated with each other; the locking piece sliding connection is in the second mounting groove, the locking piece is equipped with two locking levers that stretch into the valve intracavity, password component sets up and is used for controlling the locking piece motion in first mounting groove, and when locking state, the ball valve is closed and the locking piece drives two locking levers and stretches into in the intercommunicating pore, and when unlocking state, the locking piece drives two locking levers and leaves the intercommunicating pore.

Through the technical scheme, when the anti-theft ball valve is locked, the ball valve is closed, and the password component controls the locking block to drive the two locking rods to extend into the communicating hole, so that the ball core is prevented from rotating; the anti-theft ball valve realizes the locking or unlocking of the ball core by controlling the lock rod to extend into or leave the communicating hole, so that the structure of the anti-theft ball valve is more reliable.

Furthermore, the password assembly comprises a rotating shaft and a locking cover, the rotating shaft is rotatably connected in the first mounting groove and arranged along the length direction of the locking block, the rotating shaft is rotatably connected with a plurality of password discs, each password disc is provided with a rotating disc rotatably connected to the rotating shaft, and the outer circumferential side surface of each rotating disc is provided with a groove; the lock cover is fixedly arranged at an opening of the first mounting groove, and a plurality of avoiding grooves for the password disk to extend out are formed in the lock cover; a plurality of ejector rods which are in one-to-one correspondence with the rotary table are arranged on the locking block along the axial direction of the rotary shaft, and a locking spring which is used for forcing the locking block to drive the ejector rods to be abutted against the rotary table is arranged in the second mounting groove; when the locking state is realized, at least one ejector rod is abutted against the circumferential side face of the corresponding rotary table, and when the unlocking state is realized, each ejector rod is abutted against the groove of the corresponding rotary table; and the side surface of the convex block is provided with a limiting notch communicated with the second mounting groove along the movement direction of the locking block, and the side surface of the locking block is provided with a deflector rod extending out of the limiting notch.

Through the technical scheme, when a plurality of password dishes all rotated to correct password position, the ball valve was in the state of unblanking, every ejector pin all pushed up in the recess rather than the carousel that corresponds, and then make the locking piece drive the locking lever and leave the intercommunicating pore, when needs were locked the ball valve, make the ball core rotate to the position of closing earlier, then promote the locking piece through the driving lever and drive the locking lever and stretch into in the intercommunicating pore, compress the locking spring when the locking piece moves, and drive the ejector pin and leave the recess, rotate the position that the password dish left the correct password after that, loosen the driving lever, the locking piece drives at least one ejector pin top on the circumference side rather than the carousel that corresponds under the locking spring effect, thereby realize the locking of theftproof ball valve.

Furthermore, the number of the code discs and the number of the ejector rods are five.

Furthermore, a handle rod is fixedly installed at the upper end of the valve rod.

Furthermore, a convex column is arranged on the side surface of the valve body, the valve rod is rotatably connected in the convex column, a rotary groove is formed in the outer side of the valve rod by the convex column, a convex shoulder positioned in the rotary groove is radially arranged on the side surface of the valve rod, and a limiting plug sleeved on the valve rod is fixedly arranged at an opening of the rotary groove.

Advantageous effects

Compared with the prior art, the technical scheme of the invention has the following advantages: when the anti-theft ball valve is locked, the ball valve is closed, and the password component controls the locking block to drive the two locking rods to extend into the communicating hole, so that the ball core is prevented from rotating; the anti-theft ball valve realizes the locking or unlocking of the ball core by controlling the lock rod to extend into or leave the communicating hole, so that the structure of the anti-theft ball valve is more reliable.

Drawings

FIG. 1 is a cross-sectional view of the present invention with the core in the closed position and in the locked position;

FIG. 2 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 4 is a cross-sectional view of the present invention with the core in the open position and in the unlocked position;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 4;

fig. 7-8 are three-dimensional schematic views of a partially assembled structure of the present invention.

Detailed Description

Referring to fig. 1-8, an anti-theft ball valve includes a valve body 2, a valve cavity 21 is arranged in the valve body 2, a left passage 2a communicated with the valve cavity 21 is arranged on the left side of the valve body 2, a right valve cover 22 is fixedly mounted on the valve body 2 at a right end opening of the valve cavity 21, a right passage 2b communicated with the valve cavity 21 is arranged on the right valve cover 22, and the left passage 2a and the right passage 2b are coaxially arranged; the valve body 2 is rotatably connected with a valve rod 7 with the lower end extending into a valve cavity 21, the upper end of the valve rod 7 is fixedly provided with a handle rod 5, the valve cavity 21 is rotatably connected with a ball core 1 fixedly connected with the lower end of the valve rod 7, and the ball core 1 is used for controlling the connection and disconnection of a left channel 2a and a right channel 2 b; a communication hole 11 is arranged in the ball core 1 along the direction perpendicular to the valve rod 7, when the ball valve is opened, the communication hole 11 and the left channel 2a are in a coaxial position, and when the ball valve is closed, the communication hole 11 and the left channel 2a are in a vertical position; still include locking mechanical system, locking mechanical system includes locking piece 3 and password subassembly, the side of valve body 2 is equipped with lug 24, be equipped with the cross-section in the lug 24 and be square first mounting groove 241 and second mounting groove 242, first mounting groove 241 and second mounting groove 242 communicate each other, 3 sliding connection of locking piece is in second mounting groove 242, locking piece 3 is equipped with two locking levers 31 that stretch into in the valve pocket 21, the password subassembly sets up and is used for controlling the motion of locking piece 3 at the opening part of first mounting groove 241, and when locking state, the ball valve is closed and locking piece 3 drives two locking levers 31 and stretches into in the intercommunicating pore 11, and when the state of unblanking, locking piece 3 drives two locking levers 31 and leaves intercommunicating pore 11.

The password assembly comprises a rotating shaft 5 and a locking cover 8, the rotating shaft 5 is rotatably connected in the first mounting groove 241 and is arranged along the length direction of the locking block 3, five password discs 4 are rotatably connected on the rotating shaft 5, each password disc 4 is provided with a rotating disc 41 rotatably connected on the rotating shaft 5, and the outer circumferential side surface of each rotating disc 41 is provided with a groove 411; the lock cover 8 is fixedly arranged at an opening of the first mounting groove 241, and five avoiding grooves 81 for the password disk 4 to extend out are formed in the lock cover 8; five push rods 32 which are in one-to-one correspondence with the rotary disc 41 are arranged on the locking block 3 in parallel along the axial direction of the rotating shaft 5, and a locking spring 6 which is used for forcing the locking block 3 to drive the push rods 32 to push against the rotary disc 41 is arranged in the second mounting groove 242; in the locking state, at least one ejector rod 32 is abutted against the circumferential side face of the corresponding rotating disc 41, and in the unlocking state, each ejector rod 32 is abutted against the groove 411 of the corresponding rotating disc 41; the side surface of the convex block 24 is provided with a limit notch 243 communicated with the second mounting groove 242 along the moving direction of the lock block 3, and the side surface of the lock block 3 is provided with a shift lever 33 extending out of the limit notch 243.

The side of the valve body 2 is provided with a convex column 23, the valve rod 7 is rotatably connected in the convex column 23, the convex column 23 is provided with a rotary groove 231 on the outer side of the valve rod 7, the side of the valve rod 7 is provided with a convex shoulder 71 positioned in the rotary groove 231 along the radial direction, and an opening at the upper end of the rotary groove 231 is fixedly provided with a limit plug 72 sleeved on the valve rod 7.

When the five password discs 4 are all rotated to the correct password position, the ball valve is in an unlocking state, the locking block 3 drives the five ejector rods 32 to move towards the locking cover 8 under the action of the locking spring 6, so that the five ejector rods 32 are all ejected in the grooves 411 of the corresponding rotating disc 41, the locking block 3 drives the locking rod 31 to leave the communicating hole 11, and the anti-theft ball valve can randomly adjust the opening and closing of the ball core 1; when the ball valve needs to be locked, the ball core 1 is firstly rotated to a closed position, then the shifting rod 33 pushes the locking block 3 to drive the locking rod 31 to extend into the communicating hole 11, the locking spring 6 is compressed when the locking block 3 moves towards a direction far away from the locking cover 8, the ejector rod 32 is driven to leave the groove 411, then the password disk 4 is rotated to enable the password disk to leave a position with a correct password, the shifting rod 33 is loosened, and the locking block 3 drives at least one ejector rod 32 to be ejected on the circumferential side face of the rotating disk 41 corresponding to the ejector rod under the action of the locking spring 6, so that the locking of the anti-theft ball valve is realized.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.