Electric stop valve

Abstract

The utility model provides an electric stop valve which comprises a valve body component, a connecting seat and a driving component, the valve body component comprises a valve seat and a valve core structure rotatably arranged in the valve seat, a valve port is arranged in the valve seat, the valve core structure opens and closes the valve port through rotation, the connecting seat and the valve seat are integrally arranged, one end of the connecting seat is connected with the driving component, and the other end of the connecting seat is connected with the driving component. The driving component is connected with the valve element structure and drives the valve element structure to rotate. According to the scheme, the valve element structure is arranged in the valve seat, and opening and closing of the valve port are achieved through the action of the valve element structure. The connecting seat and the valve seat form the integrated shell structure, then the connecting seat is connected with the driving part, and the connecting seat and the valve seat are of the integrated structure, so that the procedure of connecting the connecting seat and the valve seat is not needed, the assembling procedure is reduced, and the leakage risk at the connecting position is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, specifically, relate to a kind of electric stop valve. BACKGROUND

[0002] Electric stop valve is applied to air conditioning system and other equipment, and the valve port is opened and closed by electric drive mode, to realize the on-off of pipeline. In the electric stop valve of the related art, the shell structure includes a split valve seat and a connecting seat, and the valve seat is connected to the driving component through the connecting seat. The split design of the valve seat and the connecting seat has a risk of leakage at the connecting position after connection. SUMMARY

[0003] The utility model provides a kind of electric stop valve, to solve the problem of the risk of leakage of split valve seat and connecting seat in electric stop valve after connection.

[0004] To solve the above problems, the utility model provides an electric stop valve, including valve body component, connecting seat and driving component, valve body component includes valve seat and valve core structure rotationally arranged in valve seat, valve port is provided in valve seat, valve core structure is opened and closed valve port by rotation, connecting seat and valve seat are integrally arranged, one end of connecting seat is connected with driving component, and driving component is connected with valve core structure and drives valve core structure to rotate.

[0005] Further, the inner wall of the connecting seat and the outer wall of the driving component are sealingly matched.

[0006] Further, the electric stop valve further includes a shell sealing ring between the inner wall of the connecting seat and the outer wall of the driving component.

[0007] Further, the connecting seat has a first connecting hole, the valve seat has a valve core mounting hole, the first connecting hole and the valve core mounting hole are coaxially arranged, a part of the driving component is located in the first connecting hole and is limitingly matched, and the valve core structure is located in the valve core mounting hole and is limitingly matched.

[0008] Further, the electric stop valve further includes a pre-tightening nut, the connecting seat has an internal thread, the pre-tightening nut has an external thread, the connecting seat and the pre-tightening nut are threadedly connected, and the pre-tightening nut is sleeved on a driving shell of the driving component and is limitingly matched with the driving shell.

[0009] Further, the connecting seat has a bottom wall limiting surface, the driving shell has a shell limiting surface, the shell limiting surface is away from the valve port relative to the bottom wall limiting surface, the end surface of the driving shell is matched with the bottom wall limiting surface, and the end surface of the pre-tightening nut is abutted with the shell limiting surface, so that the end surface of the driving shell is pressed against the bottom wall limiting surface.

[0010] Further, the connecting seat comprises a positioning fitting section and a threaded fitting section connected with each other, the inner diameter of the threaded fitting section is larger than that of the positioning fitting section, the driving housing comprises a positioning housing section and a pre-tightening housing section connected with each other, the outer diameter of the positioning housing section is larger than that of the pre-tightening housing section; wherein, the positioning housing section is located in the positioning fitting section and is limited to fit, the pre-tightening nut is located between the threaded fitting section and the pre-tightening housing section, the outer thread of the pre-tightening nut is connected with the inner thread of the threaded fitting section, and the end face of the pre-tightening nut is abutted with the positioning housing section.

[0011] Further, the driving component comprises a driving output shaft, the driving output shaft drives the valve core structure to rotate, the valve body component further comprises a positioning bearing, the outer ring of the positioning bearing is fitted with the inner wall of the valve seat, and the inner ring of the positioning bearing is fitted with the outer wall of the driving output shaft.

[0012] Further, the inner wall of the valve seat has a valve body limiting face, the valve body limiting face limits the side of the outer ring of the positioning bearing which is towards the valve port; the end of the valve seat which is away from the valve port has a riveting flange, the riveting flange limits the side of the outer ring of the positioning bearing which is away from the valve port.

[0013] Further, the valve body component further comprises a pre-tightening sleeve, the pre-tightening sleeve is installed in the valve seat, the pre-tightening sleeve has an assembly hole, the two ends of the valve core structure are respectively a rotating end and a sealing end, the rotating end is rotatably fitted with the assembly hole, the pre-tightening sleeve and the valve core structure are limited to fit in the axial direction, the sealing end opens and closes the valve port through rotation, and the driving component drives the rotating end to rotate.

[0014] Further, the valve body component further comprises a thrust bearing, the valve core structure has a thrust limiting face, the two ends of the thrust bearing are respectively limited to fit with the thrust limiting face and the end face of the pre-tightening sleeve, the pre-tightening sleeve is threadedly connected with the valve seat, and the pre-tightening sleeve applies an action force to the valve core structure which is towards the valve port through the thrust bearing.

[0015] In the scheme, the valve core structure is arranged in the valve seat, and the valve port is opened and closed through the action of the valve core structure. The connecting seat and the valve seat are combined into an integrated housing structure, and then the connecting seat is connected with the driving component. Since the connecting seat and the valve seat are integrated, the process of connecting the two is not required, thereby reducing the assembly process and avoiding the risk of leakage at the connection position. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of the specification of the application are used to provide further understanding of the present application, the schematic embodiments of the present application and the explanations thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0017] Figure 1 A structure schematic view of the electric stop valve provided by the embodiment of the present application is shown;

[0018] Figure 2 A structure schematic view of the electric stop valve provided by the embodiment of the present application is shown;Figure 1 a schematic view of the housing structure in the

[0019] Figure 3 a schematic view of the pre-tightening sleeve in the Figure 1 a schematic view of the pre-tightening sleeve in the

[0020] Figure 4 a schematic view of the drive output shaft in the Figure 1 a schematic view of the drive output shaft in the

[0021] wherein the above-mentioned drawings include the following reference signs:

[0022] 100, valve body part; 150, locating bearing; 160, thrust bearing;

[0023] 202, valve port; 210, valve seat; 211, valve body limiting surface; 212, riveting flange; 215, valve core mounting hole; 220, pre-tightening sleeve; 221, assembly hole;

[0024] 300, valve core structure; 301, thrust limiting surface;

[0025] 400, drive part; 410, drive output shaft; 440, drive housing; 441, housing limiting surface; 442, locating housing segment; 443, pre-tightening housing segment; 450, housing sealing ring;

[0026] 500, connecting seat; 501, bottom wall limiting surface; 510, locating matching segment; 520, threaded matching segment; 531, first connecting hole;

[0027] 610, pre-tightening nut. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] As Figures 1 to 4As shown, the embodiment of the utility model provides a kind of electric stop valve, including valve body component 100, connecting seat 500 and drive component 400, valve body component 100 includes valve seat 210 and valve core structure 300 rotationally arranged in valve seat 210, valve seat 210 is provided with valve port 202, valve core structure 300 is opened and closed by rotating valve port 202, connecting seat 500 and valve seat 210 are integrally arranged, one end of connecting seat 500 is connected with drive component 400, drive component 400 is connected with valve core structure 300 and drives valve core structure 300 to rotate.

[0030] In the present scheme, valve seat 210 is provided with valve core structure 300, and the valve port is opened and closed by the rotation of valve core structure 300. Connecting seat 500 and valve seat 210 are integrated into a shell structure, and connecting seat 500 is connected with drive component 400. Since connecting seat 500 and valve seat 210 are integrated, the process of connecting them is not required, which reduces the assembly process and avoids the risk of leakage at the connection position.

[0031] Among them, the inner wall of connecting seat 500 and the outer wall of drive component 400 are sealingly matched. In this way, leakage between the inner wall of connecting seat 500 and the outer wall of drive component 400 of the electric stop valve is avoided.

[0032] Specifically, the electric stop valve further comprises a shell sealing ring 450, which is located between the inner wall of the connecting seat 500 and the outer wall of the drive component 400. The reliable sealing between the inner wall of the connecting seat 500 and the outer wall of the drive component 400 is ensured by the shell sealing ring 450. Among them, an annular groove can be provided on the inner wall of the connecting seat 500 or the outer wall of the drive component 400, and the shell sealing ring 450 is installed in the annular groove.

[0033] As Figure 2 As shown, connecting seat 500 has a first connecting hole 531, valve seat 210 has a valve core mounting hole 215, first connecting hole 531 and valve core mounting hole 215 are coaxially arranged, a part of drive component 400 is located in first connecting hole 531 and is limited to cooperate, valve core structure 300 is located in valve core mounting hole 215 and is limited to cooperate.

[0034] Since first connecting hole 531 and valve core mounting hole 215 are coaxially arranged, and a part of drive component 400 is located in first connecting hole 531 and is limited to cooperate, valve core structure 300 is located in valve core mounting hole 215 and is limited to cooperate, which is conducive to ensuring the coaxiality of drive component 400 and valve core structure 300 after assembly, thereby realizing reliable transmission and smooth movement of valve core structure 300 when rotating.

[0035] And, since the connecting seat 500 and the valve seat 210 are integrated in the present solution, the first connecting hole 531 and the valve core mounting hole 215 can be machined by the same clamping and the same tool, thereby ensuring that the first connecting hole 531 and the valve core mounting hole 215 are coaxial after machining, and further improving the coaxiality of the driving component 400 and the valve core structure 300 after assembly.

[0036] As shown in Figure 1 and Figure 3 , the electric shut-off valve further comprises a pre-tightening nut 610, the connecting seat 500 has an internal thread, the pre-tightening nut 610 has an external thread, the connecting seat 500 and the pre-tightening nut 610 are threadedly connected, and the pre-tightening nut 610 is sleeved on the driving housing 440 of the driving component 400 and is in limiting cooperation with the driving housing 440.

[0037] The pre-tightening nut 610 achieves limiting of the driving housing 440 in the radial and axial directions, thereby achieving fixed connection of the driving housing 440 and the connecting seat 500. Moreover, the pre-tightening nut 610 is connected to the connecting seat 500 in a threaded manner, facilitating disassembly and assembly of the driving component 400.

[0038] Further, the connecting seat 500 has a bottom wall limiting surface 501, the driving housing 440 has a housing limiting surface 441, the housing limiting surface 441 is away from the valve port 202 relative to the bottom wall limiting surface 501, the end surface of the driving housing 440 cooperates with the bottom wall limiting surface 501, and the end surface of the pre-tightening nut 610 abuts against the housing limiting surface 441, so that the end surface of the driving housing 440 presses the bottom wall limiting surface 501.

[0039] Through the above arrangement, the driving housing 440 is clamped between the pre-tightening nut 610 and the connecting seat 500, thereby achieving fixation of the driving housing 440, avoiding relative rotation between the driving housing 440 and the connecting seat 500 of the electric shut-off valve during use, and ensuring transmission reliability of the driving component 400.

[0040] As shown in Figure 1 and Figure 2 , the connecting seat 500 comprises a positioning and cooperating section 510 and a threaded cooperating section 520 connected to each other, the inner diameter of the threaded cooperating section 520 is greater than the inner diameter of the positioning and cooperating section 510, the driving housing 440 comprises a positioning housing section 442 and a pre-tightening housing section 443 connected to each other, the outer diameter of the positioning housing section 442 is greater than the outer diameter of the pre-tightening housing section 443; wherein the positioning housing section 442 is located in the positioning and cooperating section 510 and is in limiting cooperation, the pre-tightening nut 610 is located between the threaded cooperating section 520 and the pre-tightening housing section 443, the external thread of the pre-tightening nut 610 is connected to the internal thread of the threaded cooperating section 520, and the end surface of the pre-tightening nut 610 abuts against the positioning housing section 442.

[0041] The cooperation of the positioning shell segment 442 and the positioning matching segment 510 can play a role of radial limiting, so that the driving shell 440 and the connecting seat 500 are coaxial. After the pre-tightening nut 610 is connected with the connecting seat 500, the driving shell 440 is limited in the axial direction, so that the driving shell 440 is fixed. In addition, the pre-tightening nut 610 and the connecting seat 500 are connected in a threaded connection mode, which is easy to disassemble and assemble.

[0042] As shown in Figure 1 and Figure 4 , the driving part 400 includes a driving output shaft 410, the driving output shaft 410 drives the valve core structure 300 to rotate, and the valve body part 100 further includes a positioning bearing 150, the outer ring of the positioning bearing 150 cooperates with the inner wall of the valve seat 210, and the inner ring of the positioning bearing 150 cooperates with the outer wall of the driving output shaft 410.

[0043] The positioning bearing 150 is arranged between the outer wall of the driving output shaft 410 and the inner wall of the valve seat 210, which plays a role of radial positioning for the driving output shaft 410 and ensures the coaxiality of the driving output shaft 410 and the valve seat 210. Since the valve core structure 300 is installed in the valve seat 210, the coaxiality of the valve core structure 300 and the driving output shaft 410 is further ensured, so that the driving output shaft 410 and the valve core structure 300 do not obviously shake when rotating, and the transmission reliability is ensured.

[0044] Further, as shown in Figure 2 , the inner wall of the valve seat 210 has a valve body limiting surface 211, the valve body limiting surface 211 limits the side of the outer ring of the positioning bearing 150 facing the valve port 202; the end of the valve seat 210 away from the valve port 202 has a riveting flange 212, the riveting flange 212 limits the side of the outer ring of the positioning bearing 150 away from the valve port 202. In this way, the valve body limiting surface 211 and the riveting flange 212 limit the outer ring of the positioning bearing 150 in two directions respectively, so as to realize the fixation of the positioning bearing 150.

[0045] As shown in Figure 1 and Figure 3 , the valve body part 100 further includes a pre-tightening sleeve 220, the pre-tightening sleeve 220 is installed in the valve seat 210, the pre-tightening sleeve 220 has an assembly hole 221, two ends of the valve core structure 300 are respectively a rotating end and a sealing end, the rotating end is rotatably matched with the assembly hole 221, the pre-tightening sleeve 220 and the valve core structure 300 are limited in the axial direction, the sealing end opens and closes the valve port 202 by rotating, and the driving part 400 drives the rotating end to rotate.

[0046] The pre-tightening sleeve 220 limits the radial direction of the valve core structure 300, guarantees the coaxial degree of the valve core structure 300 and the valve seat 210, further guarantees the coaxial degree of the valve core structure 300 and the driving component 400, so that the valve core structure 300 does not shake when rotating. After the valve core structure 300 is installed, the pre-tightening sleeve 220 limits the axial direction of the valve core structure 300, avoids the internal leakage caused by the valve core structure 300 moving axially and closing the valve port 202 too tightly.

[0047] Further, the valve body component 100 further comprises a thrust bearing 160, the valve core structure 300 has a thrust limiting surface 301, the two ends of the thrust bearing 160 are limited by the thrust limiting surface 301 and the end surface of the pre-tightening sleeve 220, the pre-tightening sleeve 220 is screwed with the valve seat 210, and the pre-tightening sleeve 220 applies a force to the valve core structure 300 towards the valve port 202 through the thrust bearing 160.

[0048] The pre-tightening sleeve 220 and the valve core structure 300 are directly contacted to limit the axial direction of the valve core structure 300, so as to avoid the abrasion caused by the pre-tightening sleeve 220 and the valve core structure 300 applying friction to each other when rotating.

[0049] The above only describes optional embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0050] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0051] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and operation described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the claims. The application is also not limited to the details of the foregoing embodiment.

[0052] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0053] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0054] In addition, it should be noted that the use of the terms "first", "second", and the like do not have a special meaning, and therefore cannot be construed as limiting the scope of protection of the present application, unless otherwise stated.

Claims

1. An electric shut-off valve, characterized in that The electric cut-off valve comprises a valve body part (100), a connecting seat (500) and a driving part (400), the valve body part (100) comprises a valve seat (210) and a valve core structure (300) rotatably arranged in the valve seat (210), the valve seat (210) is provided with a valve port (202), the valve core structure (300) opens and closes the valve port (202) by rotation, the connecting seat (500) and the valve seat (210) are integrally arranged, one end of the connecting seat (500) is connected with the driving part (400), and the driving part (400) is connected with the valve core structure (300) and drives the valve core structure (300) to rotate.

2. Motor-operated stop valve according to claim 1, characterized in that The inner wall of the connecting seat (500) and the outer wall of the driving part (400) are sealingly matched.

3. Motor-operated stop valve according to claim 2, characterized in that The electric cut-off valve further comprises a shell sealing ring (450), which is located between the inner wall of the connecting seat (500) and the outer wall of the driving part (400).

4. The motor-operated globe valve of claim 1, wherein The connecting seat (500) is provided with a first connecting hole (531), the valve seat (210) is provided with a valve core mounting hole (215), the first connecting hole (531) and the valve core mounting hole (215) are coaxially arranged, a part of the driving part (400) is located in the first connecting hole (531) and is limitingly matched, and the valve core structure (300) is located in the valve core mounting hole (215) and is limitingly matched.

5. The motor-operated globe valve of claim 1, wherein The electric cut-off valve further comprises a pre-tightening nut (610), the connecting seat (500) is provided with an internal thread, the pre-tightening nut (610) is provided with an external thread, the connecting seat (500) and the pre-tightening nut (610) are threadedly connected, and the pre-tightening nut (610) is sleeved on a driving shell (440) of the driving part (400) and is limitingly matched with the driving shell (440).

6. Motor-operated stop valve according to claim 5, characterized in that The connecting seat (500) is provided with a bottom wall limiting surface (501), the driving shell (440) is provided with a shell limiting surface (441), the shell limiting surface (441) is away from the valve port (202) relative to the bottom wall limiting surface (501), an end surface of the driving shell (440) is matched with the bottom wall limiting surface (501), and an end surface of the pre-tightening nut (610) is abutted with the shell limiting surface (441), so that the end surface of the driving shell (440) is pressed against the bottom wall limiting surface (501).

7. The motor-operated globe valve of claim 5, wherein The connecting seat (500) comprises a positioning fitting section (510) and a threaded fitting section (520) connected with each other, the inner diameter of the threaded fitting section (520) is larger than that of the positioning fitting section (510), the driving housing (440) comprises a positioning housing section (442) and a pre-tightening housing section (443) connected with each other, the outer diameter of the positioning housing section (442) is larger than that of the pre-tightening housing section (443); wherein the positioning housing section (442) is located in the positioning fitting section (510) and is limited in position, the pre-tightening nut (610) is located between the threaded fitting section (520) and the pre-tightening housing section (443), the outer thread of the pre-tightening nut (610) is connected with the inner thread of the threaded fitting section (520), and the end face of the pre-tightening nut (610) abuts against the positioning housing section (442).

8. The motor-operated globe valve of claim 1, wherein The driving component (400) comprises a driving output shaft (410) which drives the valve core structure (300) to rotate, and the valve body component (100) further comprises a positioning bearing (150) whose outer ring is matched with the inner wall of the valve seat (210) and whose inner ring is matched with the outer wall of the driving output shaft (410).

9. Motor-operated stop valve according to claim 8, characterized in that The inner wall of the valve seat (210) has a valve body limiting surface (211) which limits the side of the outer ring of the positioning bearing (150) facing the valve port (202); and the end of the valve seat (210) away from the valve port (202) has a riveting flange (212) which limits the side of the outer ring of the positioning bearing (150) away from the valve port (202).

10. The motor-operated globe valve of claim 1, wherein The valve body component (100) further comprises a pre-tightening sleeve (220) which is installed in the valve seat (210), the pre-tightening sleeve (220) has an assembly hole (221), the two ends of the valve core structure (300) are a rotating end and a sealing end respectively, the rotating end is rotatably matched with the assembly hole (221), the pre-tightening sleeve (220) and the valve core structure (300) are axially limited in position, and the sealing end opens and closes the valve port (202) by rotation.

11. Motor-operated stop valve according to claim 10, characterized in that The valve body component (100) further comprises a thrust bearing (160), the valve core structure (300) has a thrust limiting surface (301), the two ends of the thrust bearing (160) are limited in position with the thrust limiting surface (301) and the end face of the pre-tightening sleeve (220) respectively, the pre-tightening sleeve (220) is threadedly connected with the valve seat (210), and the pre-tightening sleeve (220) applies a force to the valve core structure (300) towards the valve port (202) through the thrust bearing (160).

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