阅读说明：本技术 一种易安装高稳定性截止阀及使用方法 (Easily-installed high-stability stop valve and using method ) 是由 陆应海 于 2020-06-23 设计创作，主要内容包括：本发明公开了一种易安装高稳定性截止阀及使用方法,包括阀体、安装在阀体上的支架,安装在阀体和支架上的阀杆；其特征是所述阀体上还安装有防转套；所述防转套通过螺纹安装在阀体上；所述阀杆上设有齿轮,所述防转套上设有与齿轮相适配的齿槽；所述阀杆通过齿轮和齿槽的配合与防转套滑动连接。该发明通过在阀杆上设置齿轮,在阀体上安装防转套,且在防转套上设置与齿轮相适配的齿槽,通过齿轮和齿槽的配合,在阀杆在通过调节螺纹进行上下往复运动时防止阀杆转动,避免阀杆转动而导致无法进行上下运动,从而使阀门无法正常使用；并且齿轮与齿槽的配合限制力大,限制转动效果好,使用寿命长,成本低。(The invention discloses an easily-installed high-stability stop valve and a using method thereof, wherein the stop valve comprises a valve body, a bracket arranged on the valve body, and a valve rod arranged on the valve body and the bracket; the anti-rotation valve is characterized in that the valve body is also provided with an anti-rotation sleeve; the anti-rotation sleeve is arranged on the valve body through threads; a gear is arranged on the valve rod, and a tooth socket matched with the gear is arranged on the anti-rotating sleeve; the valve rod is connected with the anti-rotation sleeve in a sliding mode through the matching of the gear and the tooth grooves. According to the invention, the gear is arranged on the valve rod, the anti-rotation sleeve is arranged on the valve body, the tooth socket matched with the gear is arranged on the anti-rotation sleeve, and the valve rod is prevented from rotating when the valve rod reciprocates up and down through the adjusting thread through the matching of the gear and the tooth socket, so that the problem that the valve cannot move up and down due to the rotation of the valve rod is avoided, and the valve cannot be normally used; and the gear and the tooth socket are matched with each other, so that the limiting force is large, the rotation limiting effect is good, the service life is long, and the cost is low.)

1. A stop valve easy to install and high in stability comprises a valve body (1), a support (2) installed on the valve body (1), and a valve rod (3) installed on the valve body (1) and the support (2); the anti-rotation valve is characterized in that the valve body (1) is also provided with an anti-rotation sleeve (4); the anti-rotation sleeve (4) is arranged on the valve body (1) through threads; a gear (5) is arranged on the valve rod (3), and a tooth groove (6) matched with the gear (5) is arranged on the anti-rotating sleeve (4); the valve rod (3) is in sliding connection with the anti-rotation sleeve (4) through the matching of the gear (5) and the tooth groove (6).

2. An easy-to-install high stability stop valve as claimed in claim 1, wherein: a support (2) is mounted on the valve body (1), and one end of the valve rod (3) penetrates through the support (2); the hydraulic needle valve is characterized in that an installation concave table (7) is arranged on the support (2), a valve rod sleeve (11) and a bearing gland (8) are installed on the installation concave table (7), a hydraulic needle bearing (9) is installed between the valve rod sleeve (11) and the installation concave table (7), and the hydraulic needle bearing (9) is fixedly installed between the valve rod sleeve (11) and the installation concave table (7) through the bearing gland (8); and the bearing gland (8) is arranged on the mounting concave table (7) through threads.

3. An easy-to-install high stability stop valve according to claim 2, wherein: one end of the valve rod (3) is connected with a valve rod sleeve (11) through threads, and the other end of the valve rod (3) is provided with a valve core (10); and a hand wheel (12) is arranged on the valve rod sleeve (11).

4. An easy-to-install high stability stop valve as claimed in claim 1, wherein: the anti-rotation valve is characterized in that a limiting step (13) is further arranged on the valve body (1), an inverted seal (14) is installed on the limiting step (13), and the inverted seal (14) is sleeved on the valve rod (3) and is located between the limiting step (13) and the anti-rotation sleeve (4).

5. An easy-to-install high stability stop valve according to claim 4, wherein: a reverse sealing pressure plate (15), a special-shaped pad (16), a special-shaped ring (17), a packing (18) and a packing gland (19) are sequentially arranged between the valve rod (3) and the valve body (1) from the anti-rotation sleeve (4) to the top; install packing plate (20) on gland (19), packing plate (20) pass through bolt and valve body (1) fixed connection, fall seal pressure board (15), dysmorphism pad (16), dysmorphism ring (17) and pass through packing plate (20) fixed mounting between valve rod (3) and valve body (1).

6. The use method of the easily-installed high-stability stop valve according to the claims 1-5, comprising the following steps; the method is characterized in that:

the first step is as follows: the valve core (10) is installed at the end part of the valve rod (3), then the inverted seal (14) and the anti-rotation sleeve (4) are sequentially sleeved on the valve rod (3), the anti-rotation sleeve (4) is connected and matched with the gear (5) through the tooth groove (6), then the valve rod (3) and the anti-rotation sleeve (4) stretch into the valve body (1), the anti-rotation sleeve (4) is driven to rotate by rotating the valve rod (3), the anti-rotation sleeve (4) is fixedly installed on the valve body (1) through threads, and the inverted seal (14) is fixedly installed between the limiting step (13) and the anti-rotation sleeve (4);

the second step is that: sequentially sleeving a reverse sealing pressure plate (15), a special-shaped pad (16), a special-shaped ring (17) and a packing (18) on a valve rod (3) and filling the space between the valve rod (3) and a valve body (1), then sleeving a packing gland (19) and a packing pressure plate (20), and then fixedly connecting the packing pressure plate (20) with the valve body (1) through bolts, so that the reverse sealing pressure plate (15), the special-shaped pad (16), the special-shaped ring (17) and the packing (18) are locked and installed between the valve rod (3) and the valve body (1);

the third step: a valve rod sleeve (11) is connected with the valve rod (3) through threads and is positioned on the mounting concave table (7) of the bracket (2);

the fourth step: the liquid needle bearing (9) is arranged between the valve rod sleeve (11) and the mounting concave table (7), then the bearing gland (8) is arranged on the mounting concave table (7) through threads, and the liquid needle bearing (9) is locked and fixed between the valve rod sleeve (11) and the mounting concave table (7);

the fifth step: the hand wheel (12) is arranged on the valve rod sleeve (11), and the assembly is completed;

and a sixth step: when the manual valve is used, the hand wheel (12) is manually rotated to drive the valve rod sleeve (11) to rotate, so that the valve rod (3) is driven to move up and down through the matching of threads, and the work of opening and closing the valve is finished.

7. An easy-to-install high stability stop valve according to claim 6, wherein: the processing process of the valve rod (3) and the anti-rotation sleeve (4) is as follows: the first step is as follows: blanking; the second step is that: rough machining and finish machining; the third step: grinding the excircle; the fourth step: the gear (5) and the tooth groove (6) are manufactured in a hobbing or cutting mode.

Technical Field

The invention relates to a valve, in particular to a stop valve with easy installation and high stability and a use method.

Background

The opening and closing part of the stop valve is a plug-shaped valve clack, the upper surface of the seal is a plane or a sea cone surface, and the valve clack moves linearly along the central line of the valve seat. The valve rod can move in a mode (the general name is a hidden rod) or in a lifting rotating rod mode, and can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like; the lifting screw rod drives the valve rod to move up and down by rotating the nut through the matching of the nut and the thread on the valve rod, but the valve rod is easily driven to rotate together with the nut when the nut is rotated, so that the valve rod cannot move up and down, and the valve cannot be normally used; therefore, many enterprises have many designs in order to prevent the valve rod from rotating, the rotation of the valve rod is limited by the rotation-proof sleeve arranged on the valve body, the general rotation-proof sleeve needs a special tool to be assembled, and is very troublesome, some rotation-proof sleeves are provided with a plurality of limiting grooves in order to be assembled, then limiting blocks matched with limiting groove lines are arranged on the special tool, the special tool is extended into the valve body to be matched with the rotation-proof sleeve during assembly, and the rotation-proof sleeve is driven to rotate by rotating the special tool, so that the rotation-proof sleeve is arranged on the valve body through threads, but the mode is troublesome to process, and the special tool needs to be manufactured, the manufacturing cost is high, and the sealing element above the rotation-proof sleeve is arranged to incline due to the arrangement of the plurality of limiting grooves on the rotation-proof sleeve, so that the sealing performance is; in order to reduce the manufacturing cost of a special tool, a mode that a valve rod drives an anti-rotation sleeve to rotate so that the anti-rotation sleeve is fixedly arranged on a valve body is provided at present, for example, the publication number is CN109084078, the patent name is that threads are arranged outside an anti-rotation guide sleeve of the anti-rotation guide sleeve recorded in a Y-shaped stop valve and connected into the valve body, a hexagonal hole is arranged inside the anti-rotation guide sleeve, and an outer hexagonal shape is arranged on the anti-rotation guide sleeve of the valve core rod and matched with the outer hexagonal hole to guide the valve core rod; the valve core rod is limited and rotated through the hexagonal surface, the valve core rod can only be suitable for a low-pressure environment, the rotating force distance is large in the high-pressure environment, the hexagonal surface can not completely limit the rotation of the valve core rod, and under the long-term condition, the edge of the hexagonal surface of the valve core rod can be abraded, so that the valve core rod is enabled to be matched with the anti-rotation guide sleeve to slip, the valve core rod can not be limited to rotate, the valve core rod needs to be replaced, the valve core rod can be continuously used, the operation is very troublesome, the service life is short, and the cost is high. Therefore, the stop valve with high stability and easy installation and the use method are provided.

Disclosure of Invention

The invention aims to solve the problems and provides a stop valve which is easy to install and high in stability and a using method.

In order to achieve the aim, the invention provides the following technical scheme that the stop valve with high stability is easy to mount, and the stop valve comprises a valve body, a bracket mounted on the valve body, and a valve rod mounted on the valve body and the bracket; the anti-rotation valve is characterized in that the valve body is also provided with an anti-rotation sleeve; the anti-rotation sleeve is arranged on the valve body through threads; a gear is arranged on the valve rod, and a tooth socket matched with the gear is arranged on the anti-rotating sleeve; the valve rod is connected with the anti-rotation sleeve in a sliding mode through the matching of the gear and the tooth grooves.

Preferably, the valve body is provided with a bracket, and one end of the valve rod penetrates through the bracket; the support is provided with an installation concave table, a valve rod sleeve and a bearing gland are installed on the installation concave table, a liquid needle bearing is installed between the valve rod sleeve and the installation concave table, and the liquid needle bearing is fixedly installed between the valve rod sleeve and the installation concave table through the bearing gland; the bearing gland is installed on the installation concave table through threads.

Preferably, one end of the valve rod is connected with the valve rod sleeve through threads, and the other end of the valve rod is provided with the valve core; and a hand wheel is arranged on the valve rod sleeve.

Further preferably, the valve body is further provided with a limiting step, an inverted seal is installed on the limiting step, and the inverted seal is sleeved on the valve rod and is located between the limiting step and the anti-rotation sleeve.

Preferably, a reverse sealing pressure plate, a special-shaped pad, a special-shaped ring, a packing and a packing gland are sequentially arranged between the valve rod and the valve body from the anti-rotation sleeve to the top; the packing gland is provided with a packing pressure plate, the packing pressure plate is fixedly connected with the valve body through a bolt, and the inverted sealing pressure plate, the special-shaped pad and the special-shaped annular filler are fixedly arranged between the valve rod and the valve body through the packing pressure plate.

A use method of a stop valve easy to install and high in stability comprises the following steps; the method is characterized in that:

the first step is as follows: installing a valve core on the end part of a valve rod, then sequentially sleeving a reverse seal and an anti-rotation sleeve on the valve rod, connecting and matching the anti-rotation sleeve with a gear through a tooth socket, then stretching the valve rod and the anti-rotation sleeve into a valve body, driving the anti-rotation sleeve to rotate through rotating the valve rod, fixedly installing the anti-rotation sleeve on the valve body through threads, and fixedly installing the reverse seal between a limiting step and the anti-rotation sleeve;

the second step is that: sequentially sleeving a reverse sealing pressure plate, a special-shaped pad, a special-shaped ring and packing on a valve rod and between the valve rod and a valve body, sleeving a packing gland and the packing pressure plate, and fixedly connecting the packing pressure plate with the valve body through bolts, so that the reverse sealing pressure plate, the special-shaped pad, the special-shaped ring and the packing are tightly installed between the valve rod and the valve body;

the third step: connecting a valve rod sleeve with a valve rod through threads and placing the valve rod sleeve on an installation concave table of a support;

the fourth step: installing a liquid needle bearing between the valve rod sleeve and the installation concave table, then installing a bearing gland on the installation concave table through threads, and locking and fixing the liquid needle bearing between the valve rod sleeve and the installation concave table;

the fifth step: the hand wheel is arranged on the valve rod sleeve, and the assembly is finished;

and a sixth step: when the valve is used, the hand wheel is manually rotated to drive the valve rod sleeve to rotate, so that the valve rod is driven to move up and down through the matching of the threads, and the work of opening and closing the valve is finished.

Further preferably, the processing process of the valve rod and the anti-rotation sleeve is as follows: the first step is as follows: blanking; the second step is that: rough machining and finish machining; the third step: grinding the excircle; the fourth step: the gear and the tooth groove are manufactured in a hobbing or cutting mode.

According to the invention, the gear is arranged on the valve rod, the anti-rotation sleeve is arranged on the valve body, the tooth socket matched with the gear is arranged on the anti-rotation sleeve, and the valve rod is prevented from rotating when the valve rod reciprocates up and down through the adjusting thread through the matching of the gear and the tooth socket, so that the problem that the valve cannot move up and down due to the rotation of the valve rod is avoided, and the valve cannot be normally used; and the gear and the tooth socket are matched with each other, so that the limiting force is large, the rotation limiting effect is good, the service life is long, and the cost is low.

Drawings

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

FIG. 2 is a partially enlarged schematic view of the present invention;

FIG. 3 is a partially enlarged schematic view of the present invention;

FIG. 4 is a partial schematic view of the present invention;

FIG. 5 is a schematic view of the structure of the valve stem of the present invention;

FIG. 6 is a schematic view of the cross-sectional structure A-A of the present invention;

FIG. 7 is a schematic cross-sectional view of a rotation preventing sleeve according to the present invention

FIG. 8 is a schematic view of an anti-rotation sleeve according to the present invention.

Illustration of the drawings: 1. a valve body; 2. a support; 3. a valve stem; 4. the anti-rotation sleeve; 5. a gear; 6. a tooth socket; 7. mounting a concave platform; 8. a bearing gland; 9. a liquid needle bearing; 10. a valve core; 11. a valve stem sleeve; 12. a hand wheel; 13. a limiting step; 14. pouring and sealing; 15. reversing the sealing pressure plate; 16. a special-shaped pad; 17. a profiled ring; 18. a filler; 19. a packing gland; 20. and (5) filling and pressing a plate.

Detailed Description

The invention further discloses an easily-installed high-stability stop valve and a using method thereof, which are described in the following by combining the attached drawings.

As shown in fig. 1 to 8, the easy-to-install high-stability stop valve of the present embodiment includes a valve body 1, a bracket 2 mounted on the valve body 1, and a valve rod 3 mounted on the valve body 1 and the bracket 2; the anti-rotation valve is characterized in that an anti-rotation sleeve 4 is further mounted on the valve body 1; the anti-rotation sleeve 4 is arranged on the valve body 1 through threads; a gear 5 is arranged on the valve rod 3, and a tooth groove 6 matched with the gear 5 is arranged on the anti-rotating sleeve 4; the valve rod 3 is in sliding connection with the anti-rotation sleeve 4 through the matching of the gear 5 and the tooth grooves 6; a bracket 2 is arranged on the valve body 1, and one end of the valve rod 3 penetrates through the bracket 2; the support 2 is provided with an installation concave table 7, the installation concave table 7 is provided with a valve rod sleeve 11 and a bearing gland 8, a liquid needle bearing 9 is arranged between the valve rod sleeve 11 and the installation concave table 7, and the liquid needle bearing 9 is fixedly arranged between the valve rod sleeve 11 and the installation concave table 7 through the bearing gland 8; the bearing gland 8 is arranged on the mounting concave table 7 through threads; one end of the valve rod 3 is connected with a valve rod sleeve 11 through threads, and the other end of the valve rod 3 is provided with a valve core 10; a hand wheel 12 is arranged on the valve rod sleeve 11; the valve body 1 is also provided with a limiting step 13, the limiting step 13 is provided with an inverted seal 14, and the inverted seal 14 is sleeved on the valve rod 3 and is positioned between the limiting step 13 and the anti-rotation sleeve 4; a reverse sealing pressure plate 15, a special-shaped pad 16, a special-shaped ring 17, a packing 18 and a packing gland 19 are sequentially arranged between the valve rod 3 and the valve body 1 from the anti-rotation sleeve 4 to the top; the packing gland 19 is provided with a packing pressure plate 20, the packing pressure plate 20 is fixedly connected with the valve body 1 through bolts, and the inverted sealing pressure plate 15, the special-shaped pad 16 and the special-shaped ring 17 are fixedly arranged between the valve rod 3 and the valve body 1 through the packing pressure plate 20; the processing process of the valve rod 3 and the anti-rotation sleeve 4 is as follows: the first step is as follows: blanking; the second step is that: rough machining and finish machining; the third step: grinding the excircle; the fourth step: the gear 5 and the tooth grooves 6 are made by a hobbing or cutting method.

A use method of a stop valve easy to install and high in stability comprises the following steps; it is characterized in that

The first step is as follows: installing a valve core 10 at the end part of a valve rod 3, then sequentially sleeving a back seal 14 and an anti-rotation sleeve 4 on the valve rod 3, connecting and matching the anti-rotation sleeve 4 with a gear 5 through a tooth groove 6, then extending the valve rod 3 and the anti-rotation sleeve 4 into a valve body 1, and driving the anti-rotation sleeve 4 to rotate by rotating the valve rod 3, so that the anti-rotation sleeve 4 is fixedly installed on the valve body 1 through threads, and the back seal 14 is fixedly installed between a limiting step 13 and the anti-rotation sleeve 4;

the second step is that: sequentially sleeving a reverse sealing pressure plate 15, a special-shaped pad 16, a special-shaped ring 17 and packing 18 on a valve rod 3 and installing the reverse sealing pressure plate, the special-shaped pad 16, the special-shaped ring 17 and the packing 18 between the valve rod 3 and a valve body 1, sleeving a packing gland 19 and a packing pressure plate 20, and fixedly connecting the packing pressure plate 20 with the valve body 1 through bolts, so that the reverse sealing pressure plate 15, the special-shaped pad 16, the special-shaped ring 17 and the packing 18 are tightly installed between the valve rod 3 and the valve;

the third step: connecting a valve rod sleeve 11 with the valve rod 3 through threads and placing the valve rod sleeve on the mounting concave table 7 of the bracket 2;

the fourth step: installing a liquid needle bearing 9 between a valve rod sleeve 11 and an installation concave table 7, then installing a bearing gland 8 on the installation concave table 7 through threads, and locking and fixing the liquid needle bearing 9 between the valve rod sleeve 11 and the installation concave table 7;

the fifth step: the hand wheel 12 is arranged on the valve rod sleeve 11, and the assembly is completed;

and a sixth step: when the manual valve is used, the hand wheel 12 is manually rotated to drive the valve rod sleeve 11 to rotate, so that the valve rod 3 is driven to move up and down through the matching of threads, and the work of opening and closing the valve is finished.

The invention has the beneficial effects that: the gear 5 is arranged on the valve rod 3, the anti-rotation sleeve 4 is arranged on the valve body 1, the tooth grooves 6 matched with the gear 5 are formed in the anti-rotation sleeve 4, the valve rod 3 is prevented from rotating when the valve rod 3 reciprocates up and down through the matching of the gear 5 and the tooth grooves 6, and the problem that the valve cannot normally use due to the fact that the valve rod 3 cannot move up and down due to the rotation of the valve rod is avoided; the gear 5 and the tooth groove 6 are matched with each other, so that the limiting force is large, the effect of limiting rotation stability is good, the service life is long, and the cost is low; the mounting concave table 7 is arranged on the support 2, the valve rod sleeve 11 is mounted in the mounting concave table 7, the mounting liquid needle bearing 9 is arranged between the valve rod sleeve 11 and the mounting concave table 7, and the resistance of the valve rod sleeve 11 in rotation and the friction between the valve rod sleeve 11 and the mounting concave table 7 are reduced through the arrangement of the liquid needle bearing 9, so that the hand wheel 12 is convenient to rotate, and particularly under the condition of high pressure, the force required by the rotation of the hand wheel 12 is reduced, and the rotation is smoother; the anti-rotation sleeve 4 is matched with the valve rod 3, the valve rod 3 drives the anti-rotation sleeve 4 to rotate through the matching of the gear 5 and the tooth groove 6, and therefore the anti-rotation sleeve 4 is fixedly installed on the valve body 1 through threads, assembly is convenient and simple, a professional assembly tool is not needed, the manufacturing process is reduced, and cost is reduced.

The scope of protection of the invention is not limited to the above embodiments and variations thereof. The present invention is not limited to the above embodiments, but may be modified in various ways.