Filter screen framework convenient for assembling spring and electromagnetic valve

Abstract

The utility model provides a filter screen framework convenient for assembling a spring, which comprises a rotary body, a spring, a spring and a spring, and the rotary body comprises a first end and a second end which are opposite to each other; the fixing part is arranged at the first end, the end face, facing the second end, of the fixing part is provided with a step containing hole with a step face, a correcting rib is arranged in the step containing hole, and the top face of the correcting rib is flush with the step face. The purpose of automatically correcting the end of the spring is achieved by arranging the correcting rib in the stepped containing hole, and therefore the situation that the spring is not assembled in place is eliminated.

Description

Technical Field

[0001] The invention belongs to the technical field of filters, and in particular relates to a filter frame and a solenoid valve which are convenient for assembling a spring. Background Art

[0002] A spring needs to be installed on the filter frame of the solenoid valve to reset the piston. The spring is installed in the inner cavity of the filter frame and one end of the spring is located in the receiving hole of the inner cavity and abuts against the stepped surface. However, when the spring is loaded, the end of the spring will be stuck on the inner cavity. At this time, the inclined tail end of the spring is suspended in the air without resistance, resulting in the spring being unable to return to the correct position and ultimately unable to be installed in place. In this way, the solenoid valve cannot transmit the fluid pump pressure and clutch pressure, resulting in the loss of performance of the speed change solenoid valve. Summary of the invention

[0003] The object of the present invention is to provide a filter screen frame which is convenient for assembling a spring and can make the inclined spring return to the correct position, thereby eliminating the situation that the spring is not assembled in place.

[0004] To achieve the above object, the present invention provides the following technical solution: a filter frame that is convenient for assembling a spring, comprising:

[0005] a rotating body, the rotating body comprising a first end and a second end opposite to each other;

[0006] A fixing part is arranged at the first end, and a step receiving hole with a step surface is arranged on the end surface facing the second end, a correction rib is arranged in the step receiving hole, and the top surface of the correction rib is flush with the step surface.

[0007] Furthermore, a guiding inclined surface is provided at the opening of the stepped receiving hole.

[0008] Furthermore, a transition fillet is provided between the guiding inclined surface and the hole wall of the stepped receiving hole.

[0009] Furthermore, the correction ribs are cross ribs.

[0010] Furthermore, the first end is provided with a connecting rib, and the connecting rib is connected to the fixing portion.

[0011] The present invention also provides a solenoid valve, comprising a filter frame and a spring, wherein the filter frame is the above-mentioned filter frame that is convenient for assembling the spring, and one end of the spring is received in the receiving hole and abuts against the stepped surface.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1) The present invention realizes the purpose of automatic correction of the spring end by arranging a correction rib in the stepped receiving hole, thereby eliminating the situation where the spring is not assembled in place.

[0014] 2) The present invention achieves the purpose of providing a guiding effect on the spring end during assembly by arranging a guiding inclined surface at the opening of the stepped receiving hole.

[0015] 3) The correction ribs in the present invention are cross ribs, which can ensure that the spring can be corrected when assembled in an inclined manner in any direction, and on the other hand, ensure that the volume of the stepped receiving hole will not change significantly, thereby ensuring the medium flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional cross-sectional view of a preferred embodiment of the present invention;

[0017] Figure 2 for Figure 1 A top view of the structure of the illustrated embodiment;

[0018] Figure 3 for Figure 2 Structural cross-section view along the AA axis;

[0019] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0020] Figure 5 for Figure 4 Schematic diagram of the structure after the spring is installed.

[0021] Figure numerals: 1. filter frame; 1.1. rotating body; 1.1.1. first end; 1.1.2. second end; 1.2. fixing portion; 1.2.1. stepped receiving hole; 1.2.2. stepped surface; 1.2.3. correction rib; 1.2.4. guide slope; 1.2.5. transition fillet; 1.3. connecting rib; 2. spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figures 1 to 5 As shown, the present invention provides a solenoid valve, comprising a filter frame 1 and a spring 2. The filter frame 1 comprises a rotating body 1.1 and a fixing part 1.2.1.

[0024] The rotating body 1.1 is a rotating body 1.1 with the shaft axis as the rotating axis, and comprises a first end 1.1.1 and a second end 1.1.2 opposite to each other. The side of the rotating body 1.1 is provided with a hollow structure for setting a side filter for filtering. The second end 1.1.2 of the rotating body 1.1 is connected to the valve body end of the solenoid valve.

[0025] The fixing part 1.2.1 is arranged at the first end 1.1.1 through a plurality of connecting ribs 1.3 distributed along the circumferential direction. Obviously, the rotating body 1.1 and the fixing part 1.2.1 are manufactured as a whole by injection molding. A hollow is also formed between the two connecting ribs 1.3 for setting an end face filter for filtering. A stepped receiving hole 1.2.1 with a stepped surface 1.2.2 is arranged on the end face of the fixing part 1.2.1 facing the second end 1.1.2. The function of the stepped surface 1.2.2 is to position the end of the spring 2. When assembling the spring 2, one end of the spring 2 is inserted into the stepped receiving hole 1.2.1 and abuts against the stepped surface 1.2.2 to form a fixation. A correction rib 1.2.3 is arranged in the stepped receiving hole 1.2.1, and the top surface of the correction rib 1.2.3 is flush with the stepped surface 1.2.2. When assembling the spring 2, if the spring 2 is tilted, the edge of the tilted end of the spring 2 will first contact the top surface of the correction rib 1.2.3, and will automatically return to the correct position due to the force of the top surface of the correction rib 1.2.3.

[0026] It should be noted that the distance between the stepped surface 1.2.2 and the opening of the stepped receiving hole 1.2.1 is smaller than the distance between the stepped surface 1.2.2 and the bottom of the stepped receiving hole 1.2.1, and the former is smaller than half of the diameter of the stepped receiving hole.

[0027] As a preferred example, a guide slope 1.2.4 is provided at the opening of the stepped receiving hole 1.2.1. When the end of the spring 2 is close to the stepped receiving hole 1.2.1, the guide slope 1.2.4 will play a guiding role and make the end of the spring 2 enter the stepped receiving hole 1.2.1 better.

[0028] As a preferred example, a transition fillet 1.2.5 is provided between the guiding inclined surface 1.2.4 and the hole wall of the stepped receiving hole 1.2.1. The transition fillet 1.2.5 can further promote the end of the spring 2 to slide into the stepped receiving hole 1.2.1.

[0029] As a preferred example, the correction rib 1.2.3 is a cross rib, which can not only make the spring 2 contact with it to realize the return when tilted in any direction, but also avoid the situation that the volume of the stepped receiving hole 1.2.1 is significantly reduced due to the provision of the rib structure, thereby preventing the significant change affecting the flow rate.

[0030] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0031] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A filter frame that is easy to assemble a spring, characterized in that: include a rotating body, the rotating body comprising a first end and a second end opposite to each other; A fixing part is arranged at the first end, and an end surface thereof facing the second end is provided with a step receiving hole with a step surface, a correction rib is arranged in the step receiving hole, and a top surface of the correction rib is flush with the step surface.

2. A filter frame that is easy to assemble a spring according to claim 1, characterized in that: A guiding inclined surface is arranged at the opening of the stepped receiving hole.

3. A filter frame that is easy to assemble a spring according to claim 2, characterized in that: A transition fillet is provided between the guiding inclined surface and the hole wall of the stepped receiving hole.

4. A filter frame that is easy to assemble a spring according to claim 3, characterized in that: The correction ribs are cross ribs.

5. A filter frame that is convenient for assembling a spring according to claim 4, characterized in that: The first end is provided with a connecting rib, and the connecting rib is connected to the fixing portion.

6. A solenoid valve, comprising a filter frame and a spring, characterized in that: The filter frame is a filter frame that is easy to assemble a spring as described in claim 1, and one end of the spring is received in the receiving hole and abuts against the stepped surface.

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