CN213393777U

CN213393777U - Sleeve structure for pilot valve assembly

Info

Publication number: CN213393777U
Application number: CN202021198148.8U
Authority: CN
Inventors: 皇甫美蓉; 皇甫炳
Original assignee: Ningbo Feitai Industry Automation Equipment Co ltd
Current assignee: Ningbo Feitai Industry Automation Equipment Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-06-08
Anticipated expiration: 2030-06-24

Abstract

A sleeve structure for a pilot valve assembly, comprising a housing, characterized in that: the casing is the cavity cuboid metal construction or the cavity waist shape metal construction that both ends link up, correspondingly, and the cross section, the longitudinal section of its inside anchor ring and outside anchor ring are the rectangle, perhaps, the cross section of its inside anchor ring and outside anchor ring be waist shape and the longitudinal section is the rectangle, and the casing setting is in coil skeleton's inner chamber, and the outside anchor ring of casing is laminated with coil skeleton's inner wall mutually, and the quiet iron core of leading head is planted in the hole that runs through of casing with the movable iron core assembly back. The sleeve structure is changed from a traditional round shape into a rectangular or waist-shaped section, so that the electromagnetic force is increased, and the electromagnetic attraction of the same number of coils is larger under the condition that the length of the coils is not changed; the insertion end is provided with a folded front end face or a connecting device, so that the fixing and the alignment are convenient. The utility model has the advantages of simple and reasonable structure, convenient assembling can save energy about 20 ~ 70%, and the line footpath diminishes, greatly reduced cost under with the power.

Description

Sleeve structure for pilot valve assembly

Technical Field

The utility model relates to a solenoid valve technical field, concretely relates to a cover structure for pilot valve subassembly.

Background

An Electromagnetic valve (Electromagnetic valve) is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The coil rack inside the solenoid valve is an indispensable component for each electromagnetic relay, the existing solenoid valve comprises a main valve body part and a control part, the control part comprises a coil combination, a wire holder, a junction box and a push rod of a pilot valve, the push rod penetrates through the shell, the wire holder is arranged on the shell, the junction box is sleeved outside the wire holder and is provided with an electrical element connected with an inserting piece, and external wiring penetrates through the junction box and then is connected with the electrical element. When the electromagnetic valve is electrified to act, the coil in the shell has current, an electromagnetic field is generated in the shell, the electromagnetic field acts on the ejector rod of the pilot valve, and the ejector rod of the pilot valve acts, so that the main valve body of the electromagnetic valve is driven to act by the pilot valve. However, since the bobbin around which the enamel wire is wound has a cylindrical shape, but the outer case thereof has a rectangular shape, the space occupied by the bobbin in the rectangular chamber is small, and therefore, in order to achieve the required magnetic flux, it is necessary to wind the bobbin with a thicker enamel wire, which is costly.

It is therefore necessary to change the structure of the bobbin and to design a sleeve structure matching the structure of the bobbin to solve the above-described problems.

Disclosure of Invention

The utility model aims to solve the technical problem that a set structure for guide valve subassembly that simple structure is more reasonable, convenient assembling and with low costs is provided to foretell technical current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a sleeve structure for a pilot valve assembly, comprising a housing, characterized in that: the casing is the cavity cuboid structure or cavity waist shape structure that both ends link up, correspondingly, and the cross section, the longitudinal section of its inside anchor ring and outside anchor ring are the rectangle, perhaps, the cross section of its inside anchor ring and outside anchor ring be waist shape and the longitudinal section is the rectangle, and the casing setting is in coil skeleton's inner chamber, and the outside anchor ring of casing is laminated with coil skeleton's inner wall mutually, and the quiet iron core of leading head is planted in the hole that runs through of casing with moving the iron core assembly back.

As an improvement, the front end of the shell is an insertion end for inserting the pilot head, and the rear end of the shell is a fixed end.

Furthermore, the shell is outwards folded at the opening of the through inner hole of the insertion end to form a front end face which is vertical to the length direction of the shell.

Still further, the front end face is a torus or a drum torus.

And the sleeve structure further comprises a connecting device, the connecting device is fixedly sleeved on the outer side ring surface of the shell at a position close to the insertion end, and the outer peripheral surface of the connecting device is provided with external threads.

Furthermore, the connecting device is of a hollow cylinder structure, and an inclined transition surface is arranged on one side of the connecting device close to the insertion end.

Still further, connecting device includes connecting portion and spacing portion, and the external diameter of spacing portion is greater than the external diameter of connecting portion, and connecting portion are hollow cylinder structure, and connecting portion set up in the one side that is close to the end of inserting, and the external screw thread sets up on connecting portion.

Preferably, connecting portion and spacing portion structure as an organic whole, spacing portion is hexagon nut or hollow cylinder structure.

Furthermore, an annular groove and a lining sealing ring are formed in one side face of the insertion end of the limiting part.

Finally, the connecting device and the shell are connected through welding or riveting.

Compared with the prior art, the utility model has the advantages of: the sleeve structure is improved from a traditional round shape to a rectangular or waist-shaped section, so that the electromagnetic force is increased, and the electromagnetic attraction of the same number of coils is larger under the condition that the length of the coils is not changed; the insertion end is provided with a folded front end face or a connecting device, so that the fixing and the alignment are convenient. The utility model has the advantages of simple and reasonable structure, convenient assembling can save energy about 20 ~ 70%, and the line footpath diminishes, greatly reduced cost under with the power.

Drawings

Fig. 1 is a front view of a sleeve structure according to embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of a solenoid valve to which the sleeve structure of embodiment 1 is attached;

fig. 4 is a front view of the sleeve structure according to embodiment 2 of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic structural view of a solenoid valve to which the sleeve structure of embodiment 2 is attached;

fig. 7 is a front view of the sleeve structure according to embodiment 3 of the present invention;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

fig. 9 is a schematic structural view of a solenoid valve to which the sleeve structure of embodiment 3 is attached;

fig. 10 is a front view of the sleeve structure according to embodiment 4 of the present invention;

FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10;

fig. 12 is a front view of the sleeve structure according to embodiment 5 of the present invention;

fig. 13 is a cross-sectional view taken along line E-E of fig. 12.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1, 2, and 3, a sleeve structure for a pilot valve assembly includes a housing 1, the housing 1 is a hollow cuboid structure with two through ends, cross sections and longitudinal sections of an inner annular surface 11 and an outer annular surface 12 of the housing are both rectangular, a front end of the housing 1 is an insertion end into which a pilot head 5 is inserted, and a rear end is a fixed end. The housing 1 is arranged in an inner cavity of the coil frame 4, an outer annular surface 12 of the housing 1 is attached to the inner wall of the coil frame 4, and a static iron core and a movable iron core of the pilot head 5 are inserted into a through inner hole 14 of the housing 1 after being assembled. The shell 1 is formed with a front end surface 13 perpendicular to the length direction of the shell 1 by outwards folding at an opening of a through inner hole 14 of the insertion end, and the front end surface 13 is a circular ring surface or a drum-shaped ring surface, in this embodiment, a drum-shaped ring surface.

The shell 1 is a stainless steel shell, a copper shell or an electrical iron shell.

The sleeve structure of the embodiment is improved from a traditional round shape to a rectangular section, so that the electromagnetic force is increased, and the electromagnetic attraction of the coils with the same number is larger under the condition that the length of the coils is not changed.

Example 2

As shown in fig. 4 to 6, a sleeve structure for a pilot valve assembly includes a housing 1 and a connecting device 3, the housing 1 is a hollow kidney-shaped metal structure with two through ends, the cross sections of an inner ring surface 11 and an outer ring surface 12 are kidney-shaped, the longitudinal section is rectangular, the front end of the housing 1 is an insertion end into which a pilot head 5 is inserted, and the rear end is a fixed end. The housing 1 is arranged in an inner cavity of the coil frame 4, an outer annular surface 12 of the housing 1 is attached to the inner wall of the coil frame 4, and a static iron core and a movable iron core of the pilot head 5 are inserted into a through inner hole 14 of the housing 1 after being assembled. The connecting device 3 is of a hollow cylindrical structure, the section of the hollow part is also in a shape of a waist matched with the hollow cylindrical structure, the connecting device 3 is fixedly sleeved on the outer side annular surface 12 of the shell 1 and is close to the insertion end, external threads are arranged on the outer peripheral surface of the connecting device 3, an inclined transition surface 33 is arranged on one side of the connecting device 3 close to the insertion end, and the connecting device 3 and the shell 1 can be in welded connection or riveted connection.

Example 3

As shown in fig. 7 to 9, a sleeve structure for a pilot valve assembly includes a housing 1 and a connecting device 3, the housing 1 is a hollow kidney-shaped metal structure with two through ends, the cross sections of an inner ring surface 11 and an outer ring surface 12 are kidney-shaped, the longitudinal section is rectangular, the front end of the housing 1 is an insertion end into which a pilot head 5 is inserted, and the rear end is a fixed end. The housing 1 is arranged in an inner cavity of the coil frame 4, an outer annular surface 12 of the housing 1 is attached to the inner wall of the coil frame 4, and a static iron core and a movable iron core of the pilot head 5 are inserted into a through inner hole 14 of the housing 1 after being assembled. The connecting device 3 is fixedly sleeved on the outer side ring surface 12 of the shell 1 close to the insertion end, the connecting device 3 comprises a connecting part 31 and a limiting part 32, the outer diameter of the limiting part 32 is larger than that of the connecting part 31, the connecting part 31 and the limiting part 32 are of an integral structure, the connecting part 31 is of a hollow cylindrical structure, the section of the hollow part is of a matching waist shape, one side of the connecting part 31 close to the insertion end is provided with an external thread on the outer peripheral surface of the connecting part 31; spacing portion 32 is hexagon nut (also can be hollow cylinder structure), and spacing portion 32 is inserted a side and is opened annular groove 33, inside lining sealing washer, can be welded connection or riveting connection between connecting device 3 and casing 1.

Example 4

As shown in fig. 10 and 11, the difference from embodiment 3 is that the housing 1 of the present embodiment is a hollow rectangular parallelepiped metal structure with both ends penetrating, the cross sections of the inner annular surface 11 and the outer annular surface 12 are rectangular, the connecting portion 31 is a hollow cylindrical structure, and the cross section of the hollow portion is also a matching rectangle.

Example 5

As shown in fig. 12 and 13, the difference from embodiment 2 is that the housing 1 of the present embodiment is a hollow rectangular parallelepiped metal structure with both ends penetrating, the cross sections of the inner annular surface 11 and the outer annular surface 12 are rectangular, the connecting portion 31 is a hollow cylindrical structure, and the cross section of the hollow portion is also a matching rectangle.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A sleeve structure for a pilot valve assembly, comprising a housing, characterized in that: the casing is the cavity cuboid metal construction or the cavity waist shape metal construction that both ends link up, correspondingly, and the cross section, the longitudinal section of its inside anchor ring and outside anchor ring are the rectangle, perhaps, the cross section of its inside anchor ring and outside anchor ring be waist shape and the longitudinal section is the rectangle, and the casing setting is in coil skeleton's inner chamber, and the outside anchor ring of casing is laminated with coil skeleton's inner wall mutually, and the quiet iron core of leading head is planted in the hole that runs through of casing with the movable iron core assembly back.

2. The sleeve structure of claim 1, wherein: the front end of the shell is an insertion end for inserting the pilot head, and the rear end of the shell is a fixed end.

3. The sleeve structure according to claim 2, characterized in that: the shell is outwards folded at the opening of the through inner hole of the insertion end to form a front end face which is vertical to the length direction of the shell.

4. The sleeve structure according to claim 3, characterized in that: the front end surface is a circular ring surface or a drum-shaped ring surface.

5. The sleeve structure according to claim 2, characterized in that: the sleeve structure further comprises a connecting device, the connecting device is fixedly sleeved on the outer side ring surface of the shell and is close to the insertion end, and external threads are arranged on the outer peripheral surface of the connecting device.

6. The sleeve structure according to claim 5, characterized in that: the connecting device is of a hollow cylinder structure, and an inclined transition surface is arranged on one side of the connecting device close to the insertion end.

7. The sleeve structure according to claim 5, characterized in that: the connecting device comprises a connecting part and a limiting part, the outer diameter of the limiting part is larger than that of the connecting part, the connecting part is of a hollow cylindrical structure, the connecting part is arranged on one side close to the insertion end, and the external thread is arranged on the connecting part.

8. The sleeve structure of claim 7 wherein: the connecting part and the limiting part are of an integrated structure, and the limiting part is of a hexagon nut or a hollow cylindrical structure.

9. The sleeve structure of claim 8, wherein: the limiting part is provided with an annular groove and a lining sealing ring on one side surface of the insertion end.

10. The sleeve structure according to claim 5, characterized in that: the connecting device and the shell are connected through welding or riveting.