CN211259828U

CN211259828U - Ball valve extension rod and ball valve with same

Info

Publication number: CN211259828U
Application number: CN201922125299.4U
Authority: CN
Inventors: 高广宇; 高贵松; 唐兴成; 李来彬
Original assignee: Idc Plumbing & Heating Technology Beijing Co ltd
Current assignee: Idc Plumbing & Heating Technology Beijing Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-08-14
Anticipated expiration: 2029-12-02

Abstract

The utility model relates to a ball valve extension rod and be equipped with the ball valve of extension rod. The ball valve extension rod comprises a main rod and a sleeve, the sleeve is arranged outside the main rod, the lower part of an inner cavity of the sleeve is provided with a horizontal connecting plate, the lower end of the sleeve is provided with a limiting tooth groove matched with a limiting block of the ball valve, the upper end of the sleeve is provided with a driving tooth groove matched with the limiting block on the handle, the lower end of the main rod is provided with an axial screw hole matched with the thread at the top of the valve rod in a threaded manner, and the top of the main rod is provided with a thread section and a handle sleeve joint section. The ball valve is provided with the ball valve extension rod, and the main rod of the ball valve is screwed on the upper end of the valve rod from the upper part of the connecting plate to compress the connecting plate. The utility model discloses simple structure, the equipment is simple and convenient, need not to change the shape structure of the original all pieces of ball valve, need not to change original operating mode, has realized the extension of distance between handle to the valve body, and the wholeness of product is good, stable in structure can not because of basically the utility model discloses an improve and break down.

Description

Ball valve extension rod and ball valve with same

Technical Field

The utility model relates to a ball valve extension rod still relates to the ball valve that is equipped with this kind of ball valve extension rod.

Background

The top of the existing ball valve body is provided with an upwards extending sealing tube, a valve rod penetrates through the sealing tube, one end of the sealing tube is positioned in the valve body and is connected with a valve ball, the other end of the sealing tube is positioned outside the valve body and is provided with a handle, the sealing tube is filled with packing and is used as a packing box, the top of the sealing tube is screwed with a packing gland with a valve rod through hole, the packing is compressed to ensure sealing, the valve rod is in clearance fit with the hole wall of the valve rod through hole on the packing gland to allow the valve rod to rotate, a valve rod connecting hole at the inner end (valve rod connecting end) of the handle is sleeved at the top of the valve rod and is fixed with the handle and the valve rod together by a compression nut rotating on the valve rod, the inner end of the handle is provided with a downwards extending limiting strip and is pressed close to the outer side of the sealing tube, and switching the on-off state of the ball valve.

However, in some applications, it is desirable to increase the distance from the handle to the valve body to accommodate field conditions or to provide other plumbing or equipment in the relevant area, and such short stem designs are not satisfactory.

SUMMERY OF THE UTILITY MODEL

For overcoming the above defects of the prior art, the utility model provides a ball valve extension rod still provides a ball valve that is equipped with this kind of extension rod to satisfy corresponding needs.

The technical scheme of the utility model is that:

the ball valve extension rod comprises a main rod and a sleeve, the sleeve is sleeved outside the main rod, the lower part of the inner cavity of the sleeve is provided with a transverse (horizontal) connecting plate, the central through hole of the connecting plate adopts a shape similar to the shape of the cross section of the upper part of the valve rod and is larger (slightly larger) than the cross section of the upper part of the valve rod, so that the central through hole of the connecting plate can be sleeved on the valve rod and can not rotate relative to the valve rod, the lower end of the main rod is provided with an axial screw hole which can be in threaded fit with the top of the valve rod, is screwed on the top of the valve rod from the upper part of the connecting plate and tightly presses the connecting plate, the top of the main rod is provided with a thread section and a handle sleeve joint section, the screw thread section is equipped with the external screw thread, the cross section of handle cup joint section adopts the shape similar with the valve rod hole on the ball valve handle, is less than (slightly less than) valve rod hole on the handle makes the handle can just can not rotate for the mobile jib through its original valve rod hole cover at the mobile jib top.

The inner diameter of the sleeve is larger than the outer diameter of the ball valve sealing pipe, so that after the sleeve is installed on the valve rod, the lower portion of the sleeve is sleeved on the outer side of the sealing pipe.

The lower end of the sleeve is provided with a limiting tooth groove matched with a limiting block of the ball valve.

The upper end of the sleeve is provided with a driving tooth groove matched with the limiting strip on the handle.

The upper portion in the sleeve is equipped with or not be equipped with horizontal last locating plate, last locating plate is equipped with the central through-hole that allows the mobile jib to pass.

The handle sleeve joint section is one part of the thread section and is positioned at the lower part of the thread section, and a handle limiting structure is arranged below the handle sleeve joint section.

The handle limiting structure is a handle limiting flange protruding radially from the outer side of the main rod, and the handle limiting flange is located below the handle sleeve stage.

The handle limiting flange is in a regular hexagonal prism shape, and at least one part of the handle limiting flange is higher than the top of the sleeve in the axial direction.

Ball valve with extension rod, including ball valve body and ball valve extension rod, be equipped with the valve rod on the ball valve body, the top of valve rod extends out from the top of valve body, the ball valve extension rod adopts the utility model provides an arbitrary ball valve extension rod, including mobile jib and sleeve pipe, the sleeve is in through the central through-hole cover on its connecting plate the upper portion of valve rod, the stopper that sets up on the side of the sealed tube of ball valve body is located in the spacing tooth's socket of sleeve lower extreme, the mobile jib is followed the top of connecting plate connects soon the upper end of valve rod compresses tightly the connecting plate, the handle is installed at the top of mobile jib, vertical spacing on the handle is inserted in the spacing tooth's socket of sleeve upper end, gland nut follows the top of handle is screwed on the mobile jib, will the handle compresses tightly.

The ball valve is characterized in that two ends of a valve body of the ball valve are provided with connectors used for being connected with an external pipeline, and the connectors are provided with or not provided with pipeline quick connection assemblies.

The utility model has the advantages that: the upper end of the valve rod is screwed with the main rod extending along the axis of the valve rod, and the handle is fixed on the main rod, so that the distance between the handle and the valve body is increased, and other pipelines or equipment can be conveniently arranged or accommodated between the handle and the valve body or can be led out from a narrow space; the sleeve is sleeved outside the main rod, the sleeve is sleeved with the corresponding non-circular part of the valve rod through a non-circular central through hole (or called as a valve rod connecting hole) of the sleeve connecting plate, synchronous rotation of the sleeve and the valve rod is realized, the synchronous rotation of the handle and the sleeve is realized through the matching of a driving tooth socket (or called as a handle connecting tooth socket) at the upper end of the sleeve and a limiting strip on the handle, and the synchronous rotation of the handle and the main rod is realized through the sleeving of an original non-circular mounting hole (valve rod connecting hole) on the handle and a non-circular handle sleeving section on the main rod, so that the synchronous transmission between the handle and the valve rod is realized under the condition of not changing the original valve rod and the original handle of; because the lower end of the sleeve is provided with the limiting tooth grooves matched with the left and right limiting blocks, the rotation of the valve rod is limited under the condition that the original limiting blocks of the ball valve are not changed.

The utility model discloses simple structure, the equipment is simple and convenient, need not to change the shape structure of the original all pieces of ball valve, need not to change original operating mode, has realized the extension of distance between handle to the valve body, and the wholeness of product is good, stable in structure can not because of basically the utility model discloses an improve and break down.

Drawings

Fig. 1 is an external configuration diagram of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the structure of the main rod and the sleeve of the present invention;

fig. 4 is the utility model discloses the sleeve and with stopper, spacing complex expansion schematic diagram.

Detailed Description

Referring to fig. 1-4, the extension rod of the present invention is configured to effectively extend the distance from the handle 14 to the valve body 10 according to the existing ball valve, and more particularly, according to the rotation and position-limiting structure of the valve rod, while maintaining the original components as unchanged as possible and facilitating the assembly and operation.

The extension pole used includes a main pole 20 and a sleeve 30.

The lower extreme of mobile jib is equipped with axial (vertical) screw 22 that can with valve rod top 12 screw-thread fit, can connect in the valve rod top during the use soon.

The top of the main rod is provided with a thread section and a handle sleeve section, the thread section is provided with external threads, the cross section of the handle sleeve section adopts a shape which is similar to but slightly smaller than the cross section of a valve rod hole on the handle and is non-circular, for example, an arch (preferably a major arc arch) or a rectangle with two short sides being convex arcs, the handle can be sleeved on the top of the main rod through the original valve rod hole at the inner end and cannot rotate relative to the main rod, the main rod can be driven to rotate synchronously when the handle is rotated, the handle sleeve section usually adopts the lower part of the thread section, a handle limiting structure is arranged below the handle sleeve section, the handle limiting structure adopts a structure which can arbitrarily prevent the handle from moving downwards, for example, the outer diameter is obviously larger than the valve rod hole on the handle, so that the gland nut 28 is screwed on the top of the main rod from, the handle can be clamped.

The handle limiting structure is a handle limiting flange 29 protruding from the side surface of the main rod in the radial direction, and the handle limiting flange is located below the handle sleeve stage and used for supporting a handle sleeved on the main rod and being matched with the compression nut to fix the handle at a corresponding position.

The profile 25 of the handle stop flange is preferably in the shape of a regular hexagonal prism (profile of the outer edge portion of a conventional nut) and is at least partially higher than the top of the sleeve in the axial direction, so that the main rod can be clamped on the handle stop flange by a tool (wrench) to rotate when the main rod is inserted into the sleeve and screwed with the valve rod.

The sleeve is sleeved outside the main rod, a transverse connecting plate 36 is arranged at the lower part of an inner cavity of the sleeve, a central through hole 37 of the connecting plate is in a shape which is similar to the shape of the cross section of the upper part of the valve rod but slightly larger, and is non-circular, the central through hole of the connecting plate can be sleeved at the upper end of the valve rod, then the main rod is screwed at the top of the valve rod, and the connecting plate is clamped tightly by screwing the main rod. So as to realize the fixation among the main rod, the sleeve and the valve rod.

The lower end of the sleeve is provided with a limiting tooth groove 34 (namely, when viewed from the axial direction, the lower end of the sleeve is provided with a section of concave part or a section of notch, and the width or the circumferential length is the width allowing the sleeve to rotate by 90 degrees under the limitation of the limiting block) 16 matched with the limiting block (the limiting structure for limiting the rotation range) of the ball valve, and after the assembly, the limiting block is positioned in the limiting tooth groove, so that after the sleeve rotates to a certain degree, the limiting block in the corresponding direction is blocked at the edge of the corresponding side of the limiting tooth groove, the sleeve is prevented from further rotating in the same direction, and the rotation limitation of the valve rod is ensured under the condition that the limiting block and.

The telescopic upper end is equipped with a drive tooth's socket 32 that matches with spacing 18 on the handle (promptly from the axial direction, telescopic lower extreme is equipped with one section concave part or section breach, and the width is called circumferential length and is the width that allows spacing to insert and not have too much surplus), and the equipment back, spacing insert the drive tooth's socket of sleeve upper end, leaves the spacing male clearance of strip of being convenient for between the two, but this clearance should not be too big to guarantee the synchronous of sleeve and handle rotation.

The upper portion in the sleeve may or may not be provided with a transverse (horizontal) upper positioning plate 39 provided with a central through hole allowing the main rod to pass therethrough, leaving a slight operating gap with the main rod to facilitate assembly operations.

The handle 14, the valve rod, the ball valve main body (the valve body, the valve ball in the valve body and the like) and the compression nut 28 and the like are all the existing ball valve, when the existing ball valve is modified, the compression nut is dismounted, the handle on the valve rod is removed, the sleeve is sleeved on the valve rod from the top end of the valve rod through the central through hole on the connecting plate, the inner diameter of the sleeve is larger than the outer diameter of the sealing pipe 11 of the ball valve, the bottom of the sleeve is sleeved outside the sealing pipe, so that the left and right limiting blocks on the sealing pipe are positioned in the limiting tooth grooves at the lower end of the sleeve, because the limiting blocks occupy a certain space, the circumferential span of the positioning groove is slightly larger than 180 degrees, the limiting blocks can only rotate 90 degrees in the rotating process of the sleeve, and the two ends of the rotating range are completely closed and completely opened corresponding to the ball valve, realize above-mentioned purpose, screw the mobile jib on the top of valve rod (if set up the last spacing pole, pass the central through-hole of last spacing pole with the mobile jib) from the higher authority of connecting plate, the connecting plate is compressed tightly by the mobile jib, installs the handle at the top of mobile jib, and on its spacing tooth's socket was inserted to spacing, screw gland nut from the higher authority of handle at the top of mobile jib, accomplish the repacking to current ball valve from this, form the utility model discloses be equipped with the ball valve of extension rod.

In the above assembly, a gasket, an elastic washer, or the like may be provided according to the related art, and the packing gland 13 may be pressed against the packing for sealing without changing the sealing manner of the seal pipe.

The ball valve with the extension rod comprises a ball valve body (a valve body, a valve ball and the like in the valve body and a valve rod) and the ball valve extension rod, wherein the valve rod is arranged on the ball valve body, the top of the valve rod extends out from the upper part of the valve body, the ball valve extension rod adopts the ball valve extension rod provided by the utility model, the ball valve extension rod comprises a main rod and a sleeve, the sleeve is sleeved on the upper part of the valve rod through a central through hole on a connecting plate of the sleeve, a limiting block arranged at the side surface of a sealing pipe of the ball valve body is positioned in a limiting tooth groove at the lower end of the sleeve, the main rod is screwed at the upper end of the valve rod from the upper part of the connecting plate to tightly press the connecting plate, a handle is arranged at the top of the main rod, a vertical limiting strip arranged on the handle is inserted in, and pressing the handle.

And two ends of the valve body of the ball valve are provided with connectors for connecting with an external pipeline. For example, when adapted to be connected to a hose, a hose connector having a male-female structure on the outer side surface is used, and when adapted to be connected to a hard pipe, an external thread for connection may be provided.

As another example, the interface may or may not be provided with a quick pipe connection assembly. The quick-connection assembly comprises a necking nut screwed on the pipeline connector, a metal quick-connection sealing ring is arranged in the necking nut, a through hole of the metal quick-connection sealing ring is a round hole, and the outer side surface of the metal quick-connection sealing ring is in the shape of an arc surface with the middle part protruding outwards.

The preferred and optional technical means disclosed in the present invention can be combined arbitrarily to form a plurality of different technical solutions, except for the specific description and the further limitation that one preferred or optional technical means is another technical means.

Claims

1. Ball valve extension rod, its characterized in that includes mobile jib and sleeve, the sleeve cover is established the outside of mobile jib, the lower part of its inner chamber is equipped with the horizontally connecting plate, the central through-hole of connecting plate adopts the shape similar with the cross sectional shape on valve rod upper portion, slightly is greater than the cross section on valve rod upper portion, the lower extreme of mobile jib is equipped with can with valve rod top screw-thread fit's axial screw, the top of mobile jib is equipped with screw thread section and handle cup joints the section, the screw thread section is equipped with the external screw thread, the cross section of handle cup joints the section adopts the shape similar with the valve rod hole on the ball valve handle, slightly is less than the.

2. The ball valve extension stem of claim 1, wherein the internal diameter of said sleeve is greater than the external diameter of the ball valve sealing tube.

3. The ball valve extension rod of claim 2, wherein the lower end of the sleeve is provided with a stop spline that mates with a stop of the ball valve.

4. The ball valve extension rod of claim 3, wherein the upper end of the sleeve is provided with a driving spline that mates with a stop bar on the handle.

5. An extension rod for a ball valve according to claim 1, wherein the upper portion of the interior of said sleeve is provided with or without a horizontal upper positioning plate provided with a central through hole allowing the main rod to pass therethrough.

6. The ball valve extension rod of any one of claims 1-5, wherein the handle socket section is a portion of a threaded section located at a lower portion of the threaded section, and a handle stop structure is disposed below the handle socket section.

7. The ball valve extension pole of claim 6, wherein the grip limiting structure is a grip limiting flange projecting radially from an outer side of the main pole, the grip limiting flange being located below the grip bushing stage.

8. The ball valve extender of claim 7, wherein said handle retention flange has a generally regular hexagonal prism shape with at least a portion of the axial height of said handle retention flange being greater than the height of said sleeve top portion.

9. The ball valve with the extension rod comprises a ball valve body, wherein a valve rod is arranged on the ball valve body, the top of the valve rod extends out from the upper part of the valve body, characterized by further comprising a ball valve extension rod, wherein the ball valve extension rod adopts the ball valve extension rod as claimed in any one of claims 1 to 7 and comprises a main rod and a sleeve pipe, the sleeve is sleeved on the upper part of the valve rod through a central through hole on a connecting plate of the sleeve, a limit block arranged on the side surface of a sealing pipe of the ball valve body is positioned in a limit tooth groove at the lower end of the sleeve, the main rod is screwed on the upper end of the valve rod from the upper part of the connecting plate to press the connecting plate, a handle is arranged at the top of the main rod, a vertical limiting strip on the handle is inserted in a limiting tooth groove at the upper end of the sleeve, and the compression nut is screwed on the main rod from the upper part of the handle to compress the handle.

10. The ball valve with the extension rod as claimed in claim 9, wherein the ball valve has connectors at both ends for connecting with an external pipe, and the connectors are provided with or without a pipe quick-connect assembly.