Proportional valve movable iron core assembly capable of reducing shaking of guide pipe

Abstract

The utility model discloses a proportional valve movable iron core assembly capable of reducing conduit shake, which comprises a support, a conduit and a movable iron core, the support is provided with two mounting holes, the two mounting holes are coaxially distributed up and down, the conduit is coaxially arranged between the two mounting holes, and the movable iron core is arranged in the conduit. At least one first positioning assembly is arranged between each mounting hole and the guide pipe, each first positioning assembly comprises a plurality of positioning protrusions of a hemispherical structure, and the positioning protrusions are distributed on the outer wall of the guide pipe in the circumferential direction and are in interference limiting fit with the inner walls of the mounting holes. The movable iron core is coaxially arranged in the guide pipe in a sliding mode. The proportional valve is simple in structure and low in cost, the phenomenon that the guide pipe shakes in the moving process of the movable iron core is effectively avoided, change of electromagnetic force is avoided, and the performance stability of the proportional valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of proportional valves, in particular to a proportional valve moving iron core component capable of reducing the shaking of a conduit. Background Art

[0002] The existing proportional valve has the following shortcomings when the moving iron core is driven to slide in the conduit under the action of the coil: the conduit is prone to tilt, which drives the moving iron core to tilt, increases the lateral force, and causes the friction force to increase. At the same time, the conduit may shake during the movement of the moving iron core, causing the size of the electromagnetic force to change, resulting in poor voltage stabilization and voltage regulation performance. Summary of the invention

[0003] In view of the above problems existing in the existing proportional valves, the present invention aims to provide a proportional valve movable iron core assembly which can improve the positioning effect of the conduit, has excellent controllability, high stability and reduces the shaking of the conduit.

[0004] The specific technical solutions are as follows:

[0005] A proportional valve moving iron core assembly for reducing guide tube shaking, comprising:

[0006] A bracket, wherein the bracket has two mounting holes, and the two mounting holes are coaxially distributed up and down;

[0007] A catheter, the catheter is coaxially installed between the two mounting holes, at least one first positioning component is provided between each mounting hole and the catheter, the first positioning component includes a plurality of positioning protrusions in a hemispherical structure, the plurality of positioning protrusions are circumferentially distributed on the outer wall of the catheter, and are interference fit with the inner wall of the mounting hole;

[0008] A moving iron core is coaxially slidably disposed in the guide tube.

[0009] As a further improvement and optimization of this solution, the bracket is further provided with a frame for mounting the coil, the frame is sleeved on the outside of the catheter, and a plurality of third positioning components are provided between the frame and the catheter, and the plurality of third positioning components are distributed at equal intervals in the longitudinal direction;

[0010] Each of the third positioning components includes: a plurality of positioning convex balls, which are evenly spaced along the circumference of the catheter, each of which is arranged on the skeleton and is a hemispherical structure, and the arc surface of the positioning convex ball is interference-limited with the outer wall of the catheter.

[0011] As a further improvement and optimization of this solution, the top and bottom of the skeleton are both limitedly matched with the bracket, and the top of the skeleton has at least two positioning columns, and the bracket has at least two positioning holes, and the two positioning columns are respectively positioned and matched with the two positioning holes.

[0012] As a further improvement and optimization of this solution, the skeleton includes:

[0013] A cylinder, wherein the cylinder is coaxially sleeved on the outside of the catheter, the coil is surrounded by the outside of the cylinder, and each of the positioning convex balls is arranged on the inner wall of the cylinder;

[0014] An upper mounting portion, wherein the upper mounting portion is sleeved on the outer portion of the upper end of the cylinder, and the top of the upper mounting portion is limited by the bracket, and the two positioning columns are both mounted on the top of the upper mounting portion;

[0015] The lower mounting part is sleeved on the outside of the lower end of the cylinder, and the bottom of the lower mounting part is limited by the bracket, and the coil is respectively limited and matched with the upper mounting part and the lower mounting part.

[0016] As a further improvement and optimization of this solution, the lower mounting portion has at least one exhaust hole.

[0017] As a further improvement and optimization of the present solution, the lower mounting portion is provided with two slots, and the two slots are respectively located on two sides of the lower mounting portion.

[0018] As a further improvement and optimization of this solution, one side of the lower mounting portion also has two sockets.

[0019] As a further improvement and optimization of this solution, the bracket includes:

[0020] A first frame, wherein one of the mounting holes is provided on the first frame, and the lower mounting portion is limitedly matched with the top of the first frame;

[0021] The second frame is arranged above the first frame, the other mounting hole is arranged on the second frame, a connecting plate is provided on both sides of the second frame, the bottom of the connecting plate is connected to the first frame, and the two positioning holes are arranged on the second frame, and the top of the upper mounting part is limitedly matched with the bottom of the second frame.

[0022] As a further improvement and optimization of the present solution, the four corners of the second frame are each provided with a corner plate, and each of the corner plates is provided with a connecting hole.

[0023] Compared with the prior art, the above technical solution has the following positive effects:

[0024] (1) In the utility model, at least one first positioning component is arranged between the conduit and each mounting hole, and a plurality of hemispherical positioning protrusions circumferentially distributed on the outer wall of the conduit in the first positioning component are used to perform interference positioning with the inner wall of the mounting hole to achieve the radial positioning effect of the conduit. Not only is the structure simple and the cost low, but it can also effectively avoid the shaking of the conduit during the movement of the moving iron core, avoid the change of the electromagnetic force, and improve the stability of the performance of the proportional valve.

[0025] (2) In the present invention, the framework repositions the conduit through a plurality of positioning convex balls of a plurality of third positioning components, thereby further preventing the conduit from shaking during the movement of the moving iron core.

[0026] (3) The skeleton of the utility model adopts at least two positioning columns to respectively cooperate with the two positioning holes on the bracket, and uses the top and bottom of the skeleton and the bracket to limit the position, which not only facilitates the installation of the skeleton, but also provides a stable installation effect of the skeleton on the bracket, thereby improving the estimated positioning effect of the catheter through a plurality of positioning convex balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a proportional valve moving iron core assembly for reducing guide tube shaking according to the utility model;

[0028] Figure 2 This is an exploded view of a proportional valve moving iron core assembly for reducing guide tube shaking according to the utility model;

[0029] Figure 3 It is a structural schematic diagram of a skeleton of a proportional valve moving iron core assembly for reducing guide tube shaking according to the utility model;

[0030] Figure 4 It is a top view of the skeleton of a proportional valve moving iron core assembly for reducing the shaking of a guide tube according to the utility model;

[0031] In the accompanying drawings: 1. bracket; 2. conduit; 3. frame; 4. moving iron core; 5. positioning protrusion; 6. positioning convex ball; 11. second frame; 12. first frame; 13. connecting plate; 14. mounting hole; 111. positioning hole; 112. angle plate; 1121. connecting hole; 31. cylinder; 32. upper mounting part; 33. lower mounting part; 34. positioning column; 331. exhaust hole; 332. slot; 333. socket. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Figure 1 This is a structural schematic diagram of a proportional valve moving iron core assembly for reducing the shaking of the guide tube according to the utility model. Figure 2 This is an exploded view of a proportional valve moving iron core assembly for reducing guide tube shaking according to the utility model. Figure 3 This is a schematic diagram of the structure of a skeleton of a proportional valve moving iron core assembly for reducing the shaking of a guide tube according to the utility model. Figure 4 This is a top view of the skeleton of a proportional valve moving iron core assembly for reducing the shaking of a guide tube according to the utility model, as shown in FIG. Figure 1-4 As shown, a preferred embodiment of a proportional valve moving iron core assembly for reducing the shaking of the catheter is shown, including a bracket 1, a catheter 2 and a moving iron core 4. The bracket 1 has two mounting holes 14, and the two mounting holes 14 are coaxially distributed up and down. The catheter 2 is coaxially installed between the two mounting holes 14. At least one first positioning assembly is provided between each mounting hole 14 and the catheter 2. The first positioning assembly includes a plurality of positioning protrusions 5 with a hemispherical structure. The plurality of positioning protrusions 5 are circumferentially distributed on the outer wall of the catheter 2 and are interference-limited with the inner wall of the mounting hole 14. The moving iron core 4 is coaxially slidably arranged in the catheter 2.

[0036] In the present embodiment, at least one first positioning component is arranged between the conduit 2 and each mounting hole 14, and a plurality of hemispherical positioning protrusions 5 circumferentially distributed on the outer wall of the conduit 2 in the first positioning component are used to perform interference positioning and interference with the inner wall of the mounting hole 14, so as to achieve the radial positioning effect of the conduit 2. This not only has a simple structure and low cost, but also effectively avoids the shaking of the conduit 2 during the movement of the moving iron core 4, avoids the change of the electromagnetic force, and improves the stability of the performance of the proportional valve.

[0037] Furthermore, as a preferred embodiment, a skeleton 3 is provided on the bracket 1 for installing the coil, and the skeleton 3 is sleeved on the outside of the catheter 2. There are a number of third positioning components between the skeleton 3 and the catheter 2, and the third positioning components are evenly distributed along the longitudinal direction; each third positioning component includes: a number of positioning convex balls 6, and the positioning convex balls 6 are evenly distributed along the circumference of the catheter 2. Each positioning convex ball 6 is arranged on the skeleton 3 and is a hemispherical structure, and the arc surface of the positioning convex ball 6 is interference fit with the outer wall of the catheter 2.

[0038] In this embodiment, the frame 3 re-positions the conduit 2 through a plurality of positioning convex balls 6 of a plurality of third positioning components, so as to further prevent the conduit 2 from shaking during the movement of the moving iron core 4 .

[0039] In this embodiment, the skeleton 3 uses at least two positioning columns 34 to respectively cooperate with the two positioning holes 111 on the bracket 1, and uses the top and bottom of the skeleton 3 and the bracket 1 to limit the position. This not only facilitates the installation of the skeleton 3, but also provides a stable installation effect on the bracket 1, thereby improving the estimated positioning effect of the catheter 2 through a plurality of positioning convex balls 6.

[0040] Furthermore, as a preferred embodiment, the top and bottom of the skeleton 3 are both limitedly matched with the bracket 1, and the top of the skeleton 3 has at least two positioning columns 34, and the bracket 1 has at least two positioning holes 111, and the two positioning columns 34 are respectively positioned and matched with the two positioning holes 111.

[0041] Furthermore, as a preferred embodiment, the skeleton 3 includes a cylinder 31, an upper mounting portion 32 and a lower mounting portion 33. The cylinder 31 is coaxially sleeved on the outside of the catheter 2, and the coil is surrounded by the outside of the cylinder 31. Each positioning convex ball 6 is arranged on the inner wall of the cylinder 31. The upper mounting portion 32 is sleeved on the outside of the upper end of the cylinder 31, and the top of the upper mounting portion 32 is limited by the bracket 1. The two positioning columns 34 are both installed on the top of the upper mounting portion 32. The lower mounting portion 33 is sleeved on the outside of the lower end of the cylinder 31, and the bottom of the lower mounting portion 33 is limited by the bracket 1, and the coil is respectively limited by the upper mounting portion 32 and the lower mounting portion 33.

[0042] Furthermore, as a preferred embodiment, the lower mounting portion 33 has at least one exhaust hole 331. When the temperature of the coil increases, the air pressure inside the coil increases, and the exhaust hole 331 can relieve the pressure.

[0043] Furthermore, as a preferred embodiment, the lower mounting portion 33 has two slots 332 , and the two slots 332 are respectively located on two sides of the lower mounting portion 33 .

[0044] Furthermore, as a preferred embodiment, one side of the lower mounting portion 33 further has two sockets 333 .

[0045] Furthermore, as a preferred embodiment, the bracket 1 includes a first frame 12 and a second frame 11, wherein a mounting hole 14 is provided on the first frame 12, and the lower mounting portion 33 is limitedly matched with the top of the first frame 12, the second frame 11 is provided above the first frame 12, another mounting hole 14 is provided on the second frame 11, and the second frame 11 has a connecting plate 13 on both sides, the bottom of the connecting plate 13 is connected to the first frame 12, and two positioning holes 111 are provided on the second frame 11, and the top of the upper mounting portion 32 is limitedly matched with the bottom of the second frame 11.

[0046] Furthermore, as a preferred embodiment, four corners of the second frame body 11 are provided with a corner plate 112 , and each corner plate 112 is provided with a connecting hole 1121 .

[0047] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A proportional valve moving iron core assembly for reducing guide tube shaking, characterized in that: include: A bracket, wherein the bracket has two mounting holes, and the two mounting holes are coaxially distributed up and down; A catheter, the catheter is coaxially installed between the two mounting holes, at least one first positioning component is provided between each mounting hole and the catheter, the first positioning component includes a plurality of positioning protrusions in a hemispherical structure, the plurality of positioning protrusions are circumferentially distributed on the outer wall of the catheter, and are interference fit with the inner wall of the mounting hole; A moving iron core is coaxially slidably disposed in the guide tube.

2. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 1, characterized in that: The bracket is also provided with a frame for mounting the coil, the frame is sleeved on the outside of the catheter, and a plurality of third positioning components are provided between the frame and the catheter, and the plurality of third positioning components are distributed at equal intervals in the longitudinal direction; Each of the third positioning components includes: a plurality of positioning convex balls, which are evenly spaced along the circumference of the catheter, each of which is arranged on the skeleton and is a hemispherical structure, and the arc surface of the positioning convex ball is interference-limited with the outer wall of the catheter.

3. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 2, characterized in that: The top and bottom of the frame are both limitedly matched with the bracket, and the top of the frame has at least two positioning columns, and the bracket has at least two positioning holes, and the two positioning columns are respectively positioned and matched with the two positioning holes.

4. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 3, characterized in that: The skeleton comprises: A cylinder, wherein the cylinder is coaxially sleeved on the outside of the catheter, the coil is surrounded by the outside of the cylinder, and each of the positioning convex balls is arranged on the inner wall of the cylinder; An upper mounting portion, wherein the upper mounting portion is sleeved on the outer portion of the upper end of the cylinder, and the top of the upper mounting portion is limited by the bracket, and the two positioning columns are both mounted on the top of the upper mounting portion; The lower mounting part is sleeved on the outside of the lower end of the cylinder, and the bottom of the lower mounting part is limited by the bracket, and the coil is respectively limited and matched with the upper mounting part and the lower mounting part.

5. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 4, characterized in that: The lower mounting portion is provided with at least one exhaust hole.

6. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 4, characterized in that: The lower mounting portion is provided with two slots, and the two slots are respectively located at two sides of the lower mounting portion.

7. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 4, characterized in that: One side of the lower mounting portion is also provided with two sockets.

8. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 4, characterized in that: The support comprises: A first frame, wherein one of the mounting holes is provided on the first frame, and the lower mounting portion is limitedly matched with the top of the first frame; The second frame is arranged above the first frame, the other mounting hole is arranged on the second frame, a connecting plate is provided on both sides of the second frame, the bottom of the connecting plate is connected to the first frame, and the two positioning holes are arranged on the second frame, and the top of the upper mounting part is limitedly matched with the bottom of the second frame.

9. The proportional valve moving iron core assembly for reducing guide tube shaking according to claim 8, characterized in that: The four corners of the second frame are each provided with a corner plate, and each corner plate is provided with a connecting hole.

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