CN217003307U

CN217003307U - Electric ball valve

Info

Publication number: CN217003307U
Application number: CN202220814328.7U
Authority: CN
Inventors: 叶南伟; 范志伟
Original assignee: Longquan Huifeng Import And Export Co ltd
Current assignee: Zhejiang Zhihui Automotive Thermal Management Technology Co.,Ltd.
Priority date: 2022-04-10
Filing date: 2022-04-10
Publication date: 2022-07-19
Anticipated expiration: 2032-04-10

Abstract

The utility model provides an electric ball valve which comprises a driving mechanism, a valve body, a valve cover, a valve seat, a limiting frame and a spherical valve core, wherein the spherical valve core is arranged in a valve cavity of the valve body, the valve body comprises at least two installation channels, each installation channel is internally provided with the valve seat, the valve seat is provided with a spherical concave surface matched with the spherical surface of the spherical valve core, a second mandrel penetrates through the valve cover, the driving mechanism drives the second mandrel to drive the spherical valve core, the limiting frame is placed on the upper part of the valve cover, a limiting groove is arranged in the limiting frame, a limiting block is arranged in the limiting groove, the second mandrel penetrates through the limiting block and forms anti-rotation fit with the limiting block, the limiting groove limits the limiting block to rotate in a preset angle range, and the mounting direction of the limiting frame is fixed so as to limit the limit position of the spherical valve core.

Description

Electric ball valve

Technical Field

The utility model relates to the technical field of fluid control, in particular to an electric ball valve.

Background

The four-way ball valve can simultaneously switch the flow directions of two media by rotating the ball body by 90 degrees only by operating a wrench or a driving mechanism, is convenient and rapid, can realize the effect of multiple purposes of one valve, and has the characteristics of small fluid resistance, good sealing performance and long service life. Utility model application 202021495389.9 discloses a four-way ball valve, a sealing ring is arranged between a second mandrel and a positioning seat, a driving mechanism is arranged at the top of the positioning seat, an anti-rotation fit is formed between the second mandrel and a spherical valve core, the driving mechanism is in driving connection with the second mandrel, and the driving mechanism controls the rotation position of the spherical valve core through the second mandrel; the top of positioning seat is provided with the spacing groove, and the spacing inslot is provided with the stopper, and the second dabber is worn to establish in the stopper to form with the stopper and prevent changeing the cooperation, the stopper is injectd at 90 within ranges rotations in the spacing groove. However, the top of positioning seat is provided with the spacing groove, and the spacing inslot is provided with the stopper, and the stopper is injectd to the spacing groove, leads to the installation direction of positioning seat to inject very strictly, just can guarantee that the spherical valve core runner aims at the installation passageway when full open state.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric ball valve, which enables the matching of a limiting groove and a limiting block to be simple and reduces the production cost.

In order to solve the technical problems, the utility model provides an electric ball valve as one aspect of the utility model, which comprises a driving mechanism, a valve body, a valve cover, a valve seat, a limiting frame, a second mandrel and a spherical valve core, wherein the spherical valve core is installed in a valve cavity of the valve body, the valve body comprises at least two installation channels, a valve seat is arranged in each installation channel, the valve seat is provided with a spherical concave surface matched with the spherical surface of the spherical valve core, the second mandrel penetrates through the valve cover, and the driving mechanism drives the second mandrel to drive the spherical valve core.

Further, the limiting frame is formed by plastic injection molding.

Further, the limiting frame and the driving mechanism are integrally formed in an injection molding mode.

Furthermore, the limiting frame is fixedly connected with the driving mechanism.

Furthermore, the driving mechanism is connected with the second mandrel through a coupling sleeve, and the limiting block is fixedly connected with the coupling sleeve or integrally processed.

Further, the limiting groove limits the limiting block to rotate within the range of 90 degrees.

Further, the spherical valve core is fixedly connected with the second mandrel, and the valve cover limits the axial position of the spherical valve core.

Furthermore, the spherical valve core is movably connected with the second mandrel, the second mandrel is provided with a step, and the valve cover limits the axial position of the spherical valve core through the step of the second mandrel.

Further, an anti-friction gasket is arranged between the valve cover and the step of the second mandrel.

Further, the top of valve gap sets up the seal groove, the sealing ring is placed to the seal groove, uses the clamping ring to compress tightly the sealing ring, the second dabber with clamping ring, sealing ring cooperation.

According to the electric ball valve, the limiting frame is placed on the upper portion of the valve cover, a limiting groove is formed in the limiting frame, a limiting block is arranged in the limiting groove, the second core shaft penetrates through the limiting block, the second core shaft and the limiting block form anti-rotation fit, the limiting groove limits the limiting block to rotate within a preset angle range, the limiting position of the spherical valve core can be limited by fixing the installation direction of the limiting frame, and the spherical valve core flow channel is guaranteed to be aligned to an installation channel in a fully-open state.

Drawings

Fig. 1 is a schematic structural diagram of an electric ball valve according to a first embodiment of the utility model;

FIG. 2 is a schematic view of the spacing block of FIG. 1 according to an embodiment of the utility model;

FIG. 3 illustrates a schematic diagram of a limiting block of FIG. 1 according to an embodiment of the utility model;

FIG. 4 is a schematic structural diagram of an electric ball valve according to a second embodiment of the present invention;

fig. 5 is a schematic view showing a fully open state of an electric ball valve according to a second embodiment of the present invention;

fig. 6 is a schematic diagram showing the adjusting state of the electric ball valve according to the second embodiment of the utility model;

fig. 7 is a schematic view showing a fully closed state of the electric ball valve according to the second embodiment of the present invention.

Reference numbers in the figures: the valve comprises a valve body 1, a mounting channel 101, a mounting channel 102, a limiting frame 2, a limiting groove 201, a driving mechanism 3, a limiting block 4, a coupling sleeve 401, a valve cover 5, a fixing ring 6, a valve seat 7, a locking joint 8, a spherical valve core 9, a throttling channel 901, a first mandrel 11, a second mandrel 12, a step 1201, a bearing 13, a sealing ring 14, a pressing ring 15 and an antifriction gasket 16

Detailed Description

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the terms "upper" and "lower" and the like as used herein are defined as parts located in the figures and positions of the parts relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the directional terms used herein are not intended to limit the scope of the claims.

As shown in fig. 1, fig. 2 and fig. 3, the electric ball valve of the present embodiment is a four-way ball valve, which includes a valve body 1, a valve cover 5, a driving mechanism 3, a valve seat 7, a limiting frame 2, a first mandrel 11, a second mandrel 12, a locking joint 8 and a spherical valve core 9, wherein the spherical valve core 9 has two channels, the spherical valve core 9 is installed in a valve cavity of the valve body, the valve body includes four installation channels, a nonmetallic valve seat 7 is provided in each installation channel, the valve seat 7 has a spherical concave surface adapted to a spherical surface of the spherical valve core 9, the locking joint 8 compresses the valve seat 7, and the valve cover 5 is fixedly connected to the valve body 1 through a fixing ring 6. The first mandrel 11 is fixedly connected with the lower end of the ball valve core 9 and is supported by a bearing 13, and the position of the ball valve core 9 which is axially downward is limited. The second mandrel 12 penetrates through the valve cover 5, the second mandrel 12 is fixedly connected with the spherical valve element 9, the valve cover 5 limits the axial upward position of the spherical valve element 9, the coupling sleeve 401 and the second mandrel 12 are in anti-rotation fit, the driving mechanism 3 drives the coupling sleeve 401, and then the second mandrel 12 drives the spherical valve element 9 to rotate, so that flow channel switching is achieved. Spacing 2 place in the upper portion of valve gap 5, spacing 2 and 1 fixed connection of valve body are provided with spacing groove 201 in the spacing 2, be provided with stopper 4 in the spacing groove 201, second dabber 12 wears to establish in stopper 4 and forms with stopper 4 and prevents changeing the cooperation, and stopper rotation at 90 within range is injectd to spacing groove 201. The ordinary rubber seal ring between valve gap 5 and second dabber 9 can't guarantee long-term sealed, sets up the seal groove at valve gap 5's top, seal ring 14 is placed to the seal groove, and clamping ring 15 compresses tightly seal ring 14, uses the plastics sealing ring of stereoplasm, perhaps packs the combination seal.

In the embodiment, the limiting frame is formed by pps plastic injection molding, the limiting frame is connected with the valve body through a screw, and the limiting position of the spherical valve core can be limited by fixing the mounting direction of the limiting frame, so that the flow channel of the spherical valve core is aligned to the mounting channel in a fully open state; the limiting frame can be fixedly connected with the driving mechanism or can be further formed by integral injection molding with a plastic shell of the driving mechanism.

In this embodiment, be connected through the yoke sleeve between actuating mechanism and the second dabber, the stopper with yoke sleeve structure as an organic whole, as shown in fig. 3, adopt the stainless steel casting after the finish machining can. The limiting block and the coupling sleeve can be processed separately and fixedly connected together or abutted together.

As shown in fig. 4, 5, 6 and 7, the second electric ball valve of the present embodiment is a two-way throttling ball valve, and the main difference between the second embodiment and the first embodiment is a spherical valve core 9, and the spherical valve core 9 of the present embodiment is a throttling valve core and is provided with a throttling groove 901. The other parts are the same as those in the first embodiment, and the connection function relationship between the parts and components not described in detail in this embodiment is the same as that in the first embodiment, and thus will not be described in detail.

According to the electric ball valve of the second embodiment of the utility model, the valve cover and the valve body are directly connected by threads, the spherical valve core 9 is movably connected with the second mandrel 12, the spherical valve core 9 prevents the second mandrel 12 from rotating through a groove at the top to drive the valve core, the second mandrel 12 is a step shaft, the valve cover 5 limits the axial upward position of the spherical valve core 9 through the step 1201 of the second mandrel, and the antifriction gasket 16 is arranged between the valve cover 5 and the step 1201 of the second mandrel to reduce the friction force between the step and the valve cover. Limiting blocks 4 are arranged in the limiting grooves 201, the second core shaft 12 is arranged in the limiting blocks 4 in a penetrating mode to form rotation prevention matching with the limiting blocks 4, the limiting blocks are limited by the limiting grooves to rotate within a 135-degree range, and the full-open state, the full-close state and the throttling state are achieved.

According to the electric ball valve, the limiting frame is placed on the upper portion of the valve cover, the limiting groove is formed in the limiting frame, the limiting block is arranged in the limiting groove, the second core shaft penetrates through the limiting block, the second core shaft and the limiting block form anti-rotation fit, the limiting groove limits the limiting block to rotate within a preset angle range, the limiting position of the spherical valve core can be limited by fixing the installation direction of the limiting frame, the limiting frame and the valve body are relatively positioned, and the installation is simple.

In addition, compared with the positioning seat in the background art, the valve cover and the valve body can be screwed tightly through threaded connection without considering the limiting direction; also can realize that the top of valve gap sets up the seal groove, and the sealing ring is placed to the seal groove, and the clamping ring compresses tightly the sealing ring, realizes reliably sealed, and if the spacing groove was seted up at the top of valve gap then the sealing ring is difficult to fix.

The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The electric ball valve comprises a driving mechanism, a valve body, a valve cover, a valve seat, a limiting frame, a second mandrel and a spherical valve core, wherein the spherical valve core is installed in a valve cavity of the valve body, the valve body comprises at least two installation channels, a valve seat is arranged in each installation channel, the valve seat is provided with a spherical concave surface matched with the spherical surface of the spherical valve core, the valve cover is arranged in a penetrating mode through the second mandrel, and the driving mechanism drives the second mandrel to drive the spherical valve core.

2. The motorized ball valve of claim 1, wherein the retention frame is injection molded from plastic.

3. An electrically operated ball valve according to claim 1 or 2, wherein the retainer is integrally injection moulded with the drive mechanism.

4. The motorized ball valve of claim 1 or 2, wherein the retainer is fixedly connected to the drive mechanism.

5. The electric ball valve according to claim 1, wherein the driving mechanism is connected with the second mandrel through a coupling sleeve, and the limiting block is fixedly connected with the coupling sleeve or integrally processed.

6. The motorized ball valve of claim 1, wherein the stop slot defines the stop for rotation through a range of 90 °.

7. The motorized ball valve of claim 1, wherein the ball valve core and the second mandrel are fixedly coupled, and the bonnet defines the axial position of the ball valve core.

8. The motorized ball valve of claim 1, wherein the ball valve core is movably coupled to the second spindle, the second spindle having a step, and the valve cover defines the axial position of the ball valve core via the step of the second spindle.

9. The motorized ball valve of claim 8, wherein a friction reducing gasket is disposed between the bonnet and the step of the second mandrel.

10. The electric ball valve according to claim 1, wherein a sealing groove is formed in the top end of the valve cover, a sealing ring is arranged in the sealing groove, a pressing ring is used for pressing the sealing ring, and the second mandrel is matched with the pressing ring and the sealing ring.