CN215635014U

CN215635014U - Novel stop valve

Info

Publication number: CN215635014U
Application number: CN202121993499.2U
Authority: CN
Inventors: 倪彩瑛; 马策飞; 包肖欢; 潘艳军
Original assignee: Zhejiang Xinrui Pipeline Co ltd
Current assignee: Zhejiang Xinrui Pipeline Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-25
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a novel stop valve, which adopts the technical scheme that: the valve comprises a valve body, a valve seat, a flange plate and a valve cover arranged on the flange plate, wherein a sheath is fixedly arranged inside the valve cover, a valve rod is arranged inside the sheath, a valve core is fixedly connected with the lower end of the valve rod, an external thread is arranged on the outer side of the lower end of the valve core, an internal thread is arranged at the position of the valve seat corresponding to the external thread, the flange plate is fixedly connected with the valve cover through a plurality of fixing bolts and fixing nuts, the heads of the fixing bolts are arranged at the lower end of the flange plate, the screw rods of the fixing bolts penetrate through the flange plate and the valve cover and are connected with the fixing nuts, the lower ends of the heads of the fixing bolts are arranged on a supporting plate, and the supporting plate is arranged at the outer end of the valve body; the utility model solves the problems that if the water flow pressure in the valve body is higher, the valve core is possible to jack up, and the safety hazard exists when the valve body and the valve cover are fixed by using a stud bolt.

Description

Novel stop valve

Technical Field

The utility model relates to the technical field of stop valves, in particular to a novel stop valve.

Background

The stop valve includes the valve body, is equipped with feed liquor chamber and play liquid chamber in the valve body, is equipped with the baffle in the valve body, is equipped with the intercommunicating pore with feed liquor chamber and play liquid chamber intercommunication on the baffle, is connected with the valve gap on the valve body, even has the valve shaft on the valve gap, and its end connection of liquid chamber is stretched into to the valve shaft has the valve plate, and the cladding has the elastic sealing layer on the surface of valve plate. The sealing principle is that the valve shaft is rotated to lead the sealing end surface of the valve plate to seal the communicating hole.

The utility model discloses a current chinese utility model that publication number is CN203717979U discloses a stop valve, which comprises a valve body, valve gap and valve rod, be equipped with the disk seat in the valve body, be equipped with the valve clack on the valve rod, the valve clack is contradicted with the disk seat and is connected, its valve clack includes lamella lid and the lamella body, the valve rod is worn to locate in the lamella lid and with lamella body fixed connection, the other end fixedly connected with lamella board of the relative valve rod of the lamella body, the lamella body can be dismantled with the lamella board and be connected, establish the annular groove between the lamella body and the lamella board, be equipped with first annular seal spare in the annular groove, the outer periphery of first annular seal spare all is contradicted with the disk seat and is connected, first annular seal spare is including superimposed rigid gasket layer and soft gasket layer in turn, the fixed second sealing spare that is provided with on the other end of the relative valve rod of lamella board.

The above-mentioned kind of stop valve has strengthened the sealed effect between valve clack and the disk seat for the sealed effect of valve is better, makes the operating mass guaranteed, and work efficiency is higher, but some problems still exist in above-mentioned kind of stop valve, for example: 1. after the valve core extends into the valve seat, if the water flow pressure in the valve body is high, the valve core can be jacked up, so that the normal use of the stop valve is influenced; 2. all generally carry out fixed connection through many stud between valve body and the valve gap, because stud's lower extreme is nearer apart from the valve body, be unfavorable for the installation, after bolt and nut take place to become flexible simultaneously, can influence the stability of stop valve, have the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel stop valve, which aims to solve the problems that if the water flow pressure in a valve body is higher, a valve core is possibly jacked up and potential safety hazards exist when a stud bolt is used for fixing the valve body and a valve cover in the background art.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides a novel stop valve, includes valve body, disk seat, ring flange and the valve gap of setting on the ring flange, the fixed sheath that is provided with in inside of valve gap, the inside of sheath is provided with the valve rod, the lower extreme fixedly connected with case of valve rod, the external screw thread has been seted up in the lower extreme outside of case, the disk seat is corresponding to the internal thread has been seted up in the position department of external screw thread, the ring flange with through a plurality of fixing bolt and fixation nut fixed connection between the valve gap, fixing bolt's head sets up the lower extreme of ring flange, fixing bolt's screw rod runs through the ring flange with the valve gap and with fixation nut is connected, fixing bolt's head lower extreme sets up in the backup pad, the backup pad sets up the outer end of valve body.

Furthermore, the bottom of the valve core is in a round table shape.

By adopting the technical scheme, the valve core can rapidly and accurately extend into the valve seat.

Furthermore, the screw rod on the fixing bolt comprises a lower thread part and an upper thread part, the lower thread part is in threaded connection with the flange plate, and the upper thread part is in threaded connection with the fixing nut.

Through adopting above-mentioned technical scheme, can guarantee the stability of being connected between fixing bolt and the fixation nut.

Furthermore, the valve body is provided with an annular groove at a position corresponding to the support plate, and the support plate is arranged inside the annular groove.

Through adopting above-mentioned technical scheme, can guarantee the stability of backup pad installation.

Furthermore, the backup pad comprises two semicircular plates, the both ends of backup pad an organic whole is provided with the installation flange, the mounting hole has been seted up to the inside of installation flange, the inside of mounting hole is provided with construction bolt.

Through adopting above-mentioned technical scheme, be convenient for install the backup pad fast.

Further, the upper end fixedly connected with threaded rod of valve rod, the outer end of threaded rod is connected with the axle sleeve, the upper end fixedly connected with handle of threaded rod.

Through adopting above-mentioned technical scheme, operating personnel can come reciprocating of control threaded rod through rotating the handle to drive the valve rod and finally drive the case and reciprocate, thereby accomplish the regulation of stop valve internal pressure.

In summary, the utility model mainly has the following beneficial effects:

1. the utility model discloses a, through be provided with external screw thread and internal thread between case and disk seat, after the case stretched into the inside to the disk seat, the case can with disk seat threaded connection to the stability that the case is connected has been guaranteed.

2. The utility model discloses a, replace traditional stud's fixed mode, adopt the single-end bolt to be provided with the backup pad at the head lower extreme of bolt, can play the fixed effect of good support for fixing bolt, improved the security of device, when dismantling or installing the valve gap, only need with fixing bolt upper end fixation nut dismantle or fixed can, the installation of being convenient for.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is a schematic structural diagram of the support plate of the present invention.

In the figure: 1. a valve body; 101. an annular groove; 2. a valve seat; 201. an internal thread; 3. a flange plate; 4. a valve cover; 5. a sheath; 6. a valve stem; 7. a valve core; 701. an external thread; 8. fixing the bolt; 801. a lower threaded portion; 802. an upper threaded portion; 9. fixing a nut; 10. a support plate; 1001. installing a convex plate; 1002. mounting holes; 11. a threaded rod; 12. a shaft sleeve; 13. a handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-3, a novel stop valve comprises a valve body 1, a valve seat 2, a flange 3 and a valve cover 4 disposed on the flange 3, the flange 3 is disposed at the upper end of the valve seat 2, a sheath 5 is fixedly disposed inside the valve cover 4, a valve rod 6 is disposed inside the sheath 5, the sheath 5 is in threaded connection with the valve rod 6, a valve core 7 is fixedly connected to the lower end of the valve rod 6, the bottom of the valve core 7 is in a circular truncated cone shape, an external thread 701 is disposed on the outer side of the lower end of the valve core 7, an internal thread 201 is disposed at a position corresponding to the external thread 701 on the valve seat 2, the external thread 701 is disposed at the upper end of the circular truncated cone shape at the bottom of the valve core 7, the flange 3 is fixedly connected with a fixing nut 9 through a plurality of fixing bolts 8, the head of the fixing bolt 8 is disposed at the lower end of the flange 3 and is closely attached to the lower end face of the flange 3, the screw of the fixing bolt 8 penetrates through the flange 3 and the valve cover 4 and is connected with the fixing nut 9, the lower end of the head of the fixing bolt 8 is arranged on a support plate 10, and the support plate 10 is arranged at the outer end of the valve body 1.

Referring to fig. 1 and 3, the screw on the fixing bolt 8 includes a lower thread portion 801 and an upper thread portion 802, the lower thread portion 801 is in threaded connection with the flange 3, when the fixing bolt 8 and the fixing nut 9 are installed, the fixing bolt 8 is firstly screwed into the lower flange 3, the lower thread portion 801 is in threaded connection with the flange 3, the valve cover 4 is provided with a through hole at a position corresponding to the screw, so that the fixing bolt 8 is conveniently installed, and then the fixing nut 9 is in threaded connection with the upper thread portion 802.

Referring to fig. 1, 3 and 4, the valve body 1 is provided with an annular groove 101 at a position corresponding to the support plate 10, the width of the annular groove 101 is not less than 2mm, the support plate 10 is clamped inside the annular groove 101, the support plate 10 is composed of two semicircular plates, the two ends of the support plate 10 are integrally provided with a mounting convex plate 1001, a mounting hole 1002 is provided inside the mounting convex plate 1001, a mounting bolt is provided inside the mounting hole 1002, when mounting, firstly, the two semicircular plates are clamped into the annular groove 101, and the mounting holes 1002 on the mounting convex plate 1001 are aligned, and then, the mounting bolt is inserted into the inside of the two mounting holes 1002 and fixed by the mounting bolt.

Referring to fig. 1, the upper end fixedly connected with threaded rod 11 of valve rod 6, the outer end of threaded rod 11 is connected with axle sleeve 12, and the upper end fixedly connected with handle 13 of threaded rod 11, operating personnel can control reciprocating of threaded rod 11 through rotating handle 13 to drive valve rod 6 and finally drive case 7 and reciprocate, thereby accomplish stop valve internal pressure's regulation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel stop valve, includes valve body (1), disk seat (2), ring flange (3) and valve gap (4) of setting on ring flange (3), its characterized in that: a sheath (5) is fixedly arranged inside the valve cover (4), a valve rod (6) is arranged inside the sheath (5), the lower end of the valve rod (6) is fixedly connected with a valve core (7), the outer side of the lower end of the valve core (7) is provided with an external thread (701), the valve seat (2) is provided with an internal thread (201) at a position corresponding to the external thread (701), the flange plate (3) and the valve cover (4) are fixedly connected with a fixing nut (9) through a plurality of fixing bolts (8), the head of the fixing bolt (8) is arranged at the lower end of the flange plate (3), the screw of the fixing bolt (8) penetrates through the flange plate (3) and the valve cover (4) and is connected with the fixing nut (9), the lower end of the head of the fixing bolt (8) is arranged on a support plate (10), and the support plate (10) is arranged at the outer end of the valve body (1).

2. The new stop valve of claim 1, wherein: the bottom of the valve core (7) is in a circular truncated cone shape.

3. The new stop valve of claim 1, wherein: the screw rod on the fixing bolt (8) comprises a lower thread part (801) and an upper thread part (802), the lower thread part (801) is in threaded connection with the flange plate (3), and the upper thread part (802) is in threaded connection with the fixing nut (9).

4. The new stop valve of claim 1, wherein: the valve body (1) is provided with an annular groove (101) at a position corresponding to the support plate (10), and the support plate (10) is arranged inside the annular groove (101).

5. The novel shut-off valve of claim 4, wherein: the supporting plate (10) is composed of two semi-annular plates, the two ends of the supporting plate (10) are integrally provided with installation convex plates (1001), installation holes (1002) are formed in the installation convex plates (1001), and installation bolts are arranged in the installation holes (1002).

6. The new stop valve of claim 1, wherein: the upper end fixedly connected with threaded rod (11) of valve rod (6), the outer end of threaded rod (11) is connected with axle sleeve (12), the upper end fixedly connected with handle (13) of threaded rod (11).