CN217898840U

CN217898840U - Stop valve that stability can be high

Info

Publication number: CN217898840U
Application number: CN202221320381.8U
Authority: CN
Inventors: 吴昊
Original assignee: Guanghan Huayuan Petroleum Drilling And Production Equipment Co ltd
Current assignee: Guanghan Huayuan Petroleum Drilling And Production Equipment Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-25
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a stop valve with high stability, which comprises a valve body, wherein the valve body is internally provided with an inlet, an outlet and a stop valve inner cavity, and the inlet, the outlet and the stop valve inner cavity are mutually communicated; the valve body is detachably provided with a valve cover, a valve rod is arranged in the inner cavity of the stop valve in a rotating and sealing mode, the valve rod is connected with the valve cover in a rotating mode, the valve rod penetrates through the valve cover and then extends into the inner cavity of the stop valve, a valve plate is connected to one end, located in the inner cavity of the stop valve, of the valve rod in a threaded mode, a rotating assembly is connected to one end, located outside the valve body, of the valve rod, the valve plate is connected with the inner cavity of the stop valve in a sliding and sealing mode, and the valve rod is used for driving the valve plate to cut off connection between an inlet and an outlet; the rotating assembly comprises a valve rod sleeve and a safety cover, the valve rod sleeve is in threaded connection with the valve rod, and the safety cover is detachably arranged above the valve rod sleeve; the utility model discloses compare with current stop valve and have the case cover can not produce smooth silk with the valve rod when rotating for the whole difficult inefficacy of stop valve, advantage that stability is strong.

Description

Stop valve that stability can be high

Technical Field

The utility model relates to a stop valve technical field, concretely relates to stop valve that stability can be high.

Background

The stop valve is also called a gate valve and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, the valve in this form is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, and the flow reaches the maximum, which indicates that the valve reaches the full-open position. Therefore, the full-open position of the stop valve is determined by the stroke of the valve clack;

when the stop valve in the prior art rotates the valve rod, the valve rod sleeve is in threaded connection with the valve rod, and when the torque is too large, the condition of wire sliding is easy to occur between the valve rod sleeve and the valve rod, so that the valve rod cannot rotate, and the stop valve is made to fail.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stop valve that stability can be high, the purpose is that the smooth silk of valve rod cover leads to the problem of the whole inefficacy of stop valve when rotating the valve rod of current stop valve.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a stop valve with high stability performance comprises a valve body, wherein an inlet, an outlet and a stop valve inner cavity are formed in the valve body, and the inlet, the outlet and the stop valve inner cavity are communicated with each other;

the valve body is detachably provided with a valve cover, a valve rod is arranged in the inner cavity of the stop valve in a rotating and sealing mode, the valve rod is connected with the valve cover in a rotating mode, the valve rod penetrates through the valve cover and then extends into the inner cavity of the stop valve, one end, located in the inner cavity of the stop valve, of the valve rod is connected with a valve plate in a threaded mode, one end, located outside the valve body, of the valve rod is connected with a rotating assembly, the valve plate is connected with the inner cavity of the stop valve in a sliding and sealing mode, and the valve rod is used for driving the valve plate to cut off connection between an inlet and an outlet;

the rotating assembly comprises a valve rod sleeve and a safety cover, the valve rod sleeve is in threaded connection with a valve rod, the safety cover can be detachably arranged above the valve rod sleeve, a first magnet is arranged on the safety cover, two mounting grooves are respectively formed in the top of the valve rod and the bottom of the valve rod sleeve, the mounting groove in the top of the valve rod is corresponding to the mounting groove in the bottom of the valve rod sleeve, a spring and a second magnet are arranged in the mounting groove in the top of the valve rod, one end of the spring is connected with the mounting groove, the other end of the spring is connected with the second magnet, the second magnet is used for sliding and is arranged in the mounting groove, and the first magnet is corresponding to the second magnet.

Further optimize, still be provided with the disk seat in the stop valve inner chamber, the valve plate is used for cutting being connected between entry and the export after laminating mutually with the disk seat.

Further optimization, the upper end face of the valve seat is provided with a bulge, the bottom face of the valve plate is provided with a groove, and the position of the bulge corresponds to that of the groove.

Further inject, valve gap and valve body pass through the bolt realization and can dismantle the connection.

Further limiting, the inlet and the outlet are respectively screwed with a water inlet pipe and a water outlet pipe.

Further defined, the valve plate is made of a hard rubber material.

Further defined, the spring is a strong spring.

Further, the first magnet and the second magnet are both strong magnets.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses mainly include the valve body, the entry, export and stop valve inner chamber, in actual use, the staff at first installs spring and second magnet in the mounting groove at valve rod top, install the valve rod cover on the valve rod again, then install first magnet on the safety cover, because first magnet and second magnet like nature repel each other, second magnet is because in the mounting groove that magnetic force effect compression spring put into on the valve rod completely until second magnet, then rotate the valve rod cover and make valve rod cover and valve rod spiro union, remove safety cover and first magnet after that, magnetic force has lacked, spring homing drives first magnet and arranges in between valve rod cover and the valve rod, valve rod cover and valve rod form integral type structure this moment, first magnet restriction valve rod cover and the relative rotation of valve rod, just so can effectually prevent that the valve rod cover from the in-process of rotating the valve rod because the too big production slide-wire between valve rod cover and the valve rod, and set up the valve rod cover of being more convenient for, and then make things convenient for maintenance personnel to change or maintain the valve rod, the staff installs the back, control liquid stays in the stop valve rod cover, stop valve rod cover and the valve rod can rotate the valve rod and control valve rod and the valve plate and the valve rod cooperation of valve rod, and the valve plate of valve plate, thereby the valve plate and the valve plate can rotate the cooperation of the export of valve rod simultaneously, thereby the export and the valve plate of valve plate and the cooperation of the valve plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a of fig. 1 according to the present invention.

In the figure, 101-valve body, 102-inlet, 103-outlet, 104-stop valve inner cavity, 105-valve cover, 106-valve rod, 107-valve plate, 108-valve rod sleeve, 109-safety cover, 110-first magnet, 111-mounting groove, 112-second magnet, 113-spring, 114-valve seat, 115-bulge, 116-groove, 117-bolt, 118-water inlet pipe, 119-water outlet pipe, 120-T type pressing block, 121-limiting groove, 122-sealing ring and 123-packing.

Detailed Description

The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

Example one

As shown in fig. 1 and fig. 2, the present embodiment discloses a stop valve with high stability, which includes a valve body 101, an inlet 102, an outlet 103, and a stop valve cavity 104 are provided in the valve body 101, and the inlet 102, the outlet 103, and the stop valve cavity 104 are communicated with each other;

the valve body 101 is detachably provided with a valve cover 105, a valve rod 106 is arranged in the inner cavity 104 of the stop valve in a rotating and sealing mode, the valve rod 106 is connected with the valve cover 105 in a rotating mode, the valve rod 106 penetrates through the valve cover 105 and then extends into the inner cavity 104 of the stop valve, one end, located in the inner cavity 104 of the stop valve, of the valve rod 106 is connected with a valve plate 107 in a threaded mode, one end, located outside the valve body 101, of the valve rod 106 is connected with a rotating assembly, the valve plate 107 is connected with the inner cavity 104 of the stop valve in a sliding and sealing mode, and the valve rod 106 is used for driving the valve plate 107 to block connection between an inlet 102 and an outlet 103;

the rotating assembly comprises a valve rod sleeve 108 and a safety cover 109, the valve rod sleeve 108 is in threaded connection with a valve rod 106, the safety cover 109 is detachably arranged above the valve rod sleeve 108, a first magnet 110 is arranged on the safety cover 109, two mounting grooves 111 are respectively formed in the top of the valve rod 106 and the bottom of the valve rod sleeve 108, the mounting groove 111 in the top of the valve rod 106 corresponds to the mounting groove 111 in the bottom of the valve rod sleeve 108 in position, a spring 113 and a second magnet 112 are arranged in the mounting groove 111 in the top of the valve rod 106, one end of the spring 113 is connected with the mounting groove 111, the other end of the spring 113 is connected with the second magnet 112, the second magnet 112 is arranged in the mounting groove 111 in a sliding manner, and the positions of the first magnet 110 and the second magnet 112 correspond to each other;

the utility model mainly comprises a valve body 101, an inlet 102, an outlet 103 and a stop valve inner cavity 104, in the actual using process, a worker firstly installs a spring 113 and a second magnet 112 in a mounting groove 111 at the top of a valve rod 106, then installs a valve rod sleeve 108 on the valve rod 106, then installs the first magnet 110 on a safety cover 109, because the like poles of the first magnet 110 and the second magnet 112 repel each other, the second magnet 112 compresses the spring 113 until the second magnet 112 is completely placed in the mounting groove 111 on the valve rod 106 due to the magnetic force action, then rotates the valve rod sleeve 108 to lead the valve rod sleeve 108 to be in threaded connection with the valve rod 106, then removes the safety cover 109 and the first magnet 110, lacks the magnetic force action, the spring 113 resets and drives the first magnet 110 to be placed between the valve rod sleeve 108 and the valve rod 106, at this moment, the valve rod sleeve 108 and the valve rod 106 form an integrated structure, the first magnet 110 limits the relative rotation of the valve rod sleeve 108 and the valve rod 106, so that the valve rod sleeve 108 can be effectively prevented from generating slide wires between the valve rod sleeve 108 and the valve rod 106 due to overlarge torque in the process of rotating the valve rod 106, and the valve rod sleeve 108 is more convenient to disassemble due to the arrangement, so that the valve rod 106 is convenient for maintenance personnel to replace or maintain the valve rod 106, after the stop valve is installed by the working personnel, control liquid is left in the stop valve, the valve rod sleeve 108 is rotated, and due to the fact that the valve rod 106 is in running fit with the valve body 101, the valve rod 106 is in threaded fit with the valve plate 107, the valve plate 107 can be controlled to slide up and down while the valve rod sleeve 108 is rotated, and the communication relation between the inlet 102 and the outlet 103 is cut off.

Further optimize, still be provided with valve seat 114 in the stop valve inner chamber 104, valve plate 107 is used for cutting off being connected between entry 102 and the export 103 after laminating mutually with valve seat 114, sets up valve seat 114 and just need not change valve body 101 wholly when wearing and tearing leakproofness variation appears in valve body 101, can conveniently change valve seat 114 after setting up valve seat 114, in time valve seat 114 appear wearing and tearing only need change valve seat 114 can.

Preferably, the upper end surface of the valve seat 114 is provided with a protrusion 115, the bottom surface of the valve plate 107 is provided with a groove 116, the protrusion 115 corresponds to the groove 116, and the sealing performance between the valve plate 107 and the valve seat 114 can be further improved by providing the protrusion 115 and the groove 116.

Further, the valve cover 105 and the valve body 101 are detachably connected through the bolt 117, the valve body 101 can be more easily detached by using the bolt 117, and the valve cover 105 can be stably fixed on the valve body 101 when in use.

Further, the inlet 102 and the outlet 103 are respectively screwed with a water inlet pipe 118 and a water outlet pipe 119, and the water inlet pipe 118 and the water outlet pipe 119 are screwed together to facilitate the disassembly of the water inlet pipe 118 and the water outlet pipe 119, so that the maintenance of the whole stop valve by workers is facilitated.

Further, the valve plate 107 is made of hard rubber material, and the rubber has certain plasticity, so that when the valve rod 106 is in contact with the valve seat 114, the groove 116 on the valve plate 107 and the protrusion 115 on the valve seat 114 can be compressed, and the sealing performance of the whole stop valve is further improved.

Further defined, the spring 113 is a strong spring, which is provided to prevent the spring 113 from failing.

Further, the first magnet 110 and the second magnet 112 are strong magnets, and the first magnet 110 and the second magnet 112 are strong magnets, which facilitates the threaded engagement between the valve stem sleeve 108 and the valve stem 106.

Example two

As shown in fig. 1 and fig. 2, the present embodiment is further optimized based on the first embodiment, in the present embodiment, a limiting groove 121 is arranged in the inner cavity 104 of the stop valve, a T-shaped pressing block 120 is arranged between the valve cover 105 and the valve body 101, a sealing ring 122 is arranged in the inner cavity 104 of the stop valve, the limiting groove 121 is used for limiting the sealing ring 122 to slide downwards, the valve rod 106 is connected with the inner cavity 104 of the stop valve through the sealing ring 122 in a sealing manner, and a packing 123 is arranged between the T-shaped pressing block 120 and the sealing ring 122;

in actual use, the staff passes through locking bolt 117 and then makes the clearance between valve plate 107 and the valve body 101 diminish, thereby push down T type briquetting 120, the back is contacted with valve body 101 to the main part of T type briquetting 120, valve body 101 is spacing to T type briquetting 120, spacing groove 121 is spacing to the position of sealing washer 122, packing 123 is compressed between sealing washer 122 and T type briquetting 120, and then tightly press sealing washer 122 on spacing groove 121, the benefit that sets up like this compresses tightly sealing washer 122 after passing through briquetting extrusion packing 123 through rotating bolt 117, with the leakproofness of improvement stop valve inner chamber 104.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.

Claims

1. The utility model provides a stop valve that stability can be high which characterized in that: the valve comprises a valve body (101), wherein an inlet (102), an outlet (103) and a stop valve inner cavity (104) are formed in the valve body (101), and the inlet (102), the outlet (103) and the stop valve inner cavity (104) are communicated with each other;

the valve body (101) is detachably provided with a valve cover (105), a valve rod (106) is arranged in a stop valve inner cavity (104) in a rotary sealing mode, the valve rod (106) is rotatably connected with the valve cover (105), the valve rod (106) extends into the stop valve inner cavity (104) after penetrating through the valve cover (105), a valve plate (107) is screwed at one end, located in the stop valve inner cavity (104), of the valve rod (106), a rotary component is connected at one end, located outside the valve body (101), of the valve rod (106), the valve plate (107) is connected with the stop valve inner cavity (104) in a sliding sealing mode, and the valve rod (106) is used for driving the valve plate (107) to cut off connection between an inlet (102) and an outlet (103);

the rotating assembly comprises a valve rod sleeve (108) and a safety cover (109), the valve rod sleeve (108) is in threaded connection with a valve rod (106), the safety cover (109) is detachably arranged above the valve rod sleeve (108), a first magnet (110) is arranged on the safety cover (109), two mounting grooves (111) are respectively formed in the top of the valve rod (106) and the bottom of the valve rod sleeve (108), the mounting grooves (111) in the top of the valve rod (106) correspond to the mounting grooves (111) in the bottom of the valve rod sleeve (108), a spring (113) and a second magnet (112) are arranged in the mounting grooves (111) in the top of the valve rod (106), one end of the spring (113) is connected with the mounting grooves (111), the other end of the spring is connected with the second magnet (112), the second magnet (112) is arranged in the mounting grooves (111) in a sliding mode, and the first magnet (110) corresponds to the second magnet (112).

2. The high-stability stop valve according to claim 1, wherein: a valve seat (114) is further arranged in the inner cavity (104) of the stop valve, and the valve plate (107) is used for being attached to the valve seat (114) and then cutting off connection between the inlet (102) and the outlet (103).

3. A high stability stop valve as claimed in claim 2, wherein: the upper end face of the valve seat (114) is provided with a protrusion (115), the bottom face of the valve plate (107) is provided with a groove (116), and the protrusion (115) corresponds to the groove (116).

4. The high-stability stop valve according to claim 1, wherein: the valve cover (105) is detachably connected with the valve body (101) through a bolt (117).

5. A high stability stop valve as defined in claim 1, wherein: the inlet (102) and the outlet (103) are respectively connected with a water inlet pipe (118) and a water outlet pipe (119) in a threaded manner.

6. The high-stability stop valve according to claim 1, wherein: the valve plate (107) is made of a hard rubber material.

7. The high-stability stop valve according to claim 1, wherein: the spring (113) is a strong spring.

8. A high stability stop valve as defined in claim 1, wherein: the first magnet (110) and the second magnet (112) are both strong magnets.