Novel built-in check valve clack support fixing structure
By employing a support block and arc-shaped strip bracket fixing structure in the check valve, the problems of check valve sealing surface misalignment and material waste are solved, achieving material savings and sealing effect in high-capacity, large-diameter check valves.
Patent Information
- Application Number
- CN202423250612.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-27
AI Technical Summary
During the assembly process of existing check valves, the relative sliding deformation of the bracket and valve body causes the sealing surface to shift, resulting in sealing failure. At the same time, the large diameter bolts of high-capacity, large-diameter check valves cause material waste.
A novel built-in check valve disc support fixing structure is adopted. By setting support blocks and arc strips on the side wall of the valve body's central hole, the support is fixed with bolts and anti-loosening pads, and the rocker arm is fixed with pins, thereby reducing the size of the support, rocker arm, and pin shaft.
Without altering the fit strength between the valve body and the bracket, materials are saved, the dimensions of the bracket, rocker arm, and pin are reduced, and the sealing effect is improved.
Smart Images
Figure CN223498799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, and in particular to a novel built-in check valve disc support fixing structure. Background Technology
[0002] During the assembly of the check valve, the bolts of the mounting bracket and the valve body are interference fit. If the bracket and the valve body slip or deform relative to each other during use, the sealing surfaces of the valve disc and the valve seat will shift, causing the original sealing pair to fail. Therefore, it is necessary to ensure that the positions of the valve body and the bracket do not shift.
[0003] However, the current structure has some problems: the valve body and support of small-diameter, low-pound check valves are generally rectangular and then fixed with one or two bolts. But high-pound, large-diameter check valves require bolts with much larger diameters, which results in particularly large dimensions for the valve body cantilever, support, rocker arm, and pin, causing a lot of material waste. Therefore, it is very necessary to design a structure that can save materials. Utility Model Content
[0004] The main objective of this invention is to provide a novel built-in check valve disc support fixing structure to effectively solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel built-in check valve disc support fixing structure, comprising a valve body, a support, and a rocker arm. The valve body has three support blocks with their top surfaces in the same plane on the side wall of the central hole, and each support block is provided with a valve body screw hole. The support includes an arc-shaped strip with three support fixing screw holes. Two vertical rods for fixing the valve disc are provided on the lower side of the arc-shaped strip, and each vertical rod has a rocker arm fixing screw hole at its lower end. The support is fixed to the three support blocks with bolts and anti-loosening washers, and the rocker arm is fixed in the rocker arm fixing screw hole with a pin.
[0006] Preferably, the bracket fixing screw hole on the arc-shaped strip is matched with the valve body screw hole on the valve body support block.
[0007] Preferably, the two vertical rods are located on both sides of the middle bracket fixing screw hole among the three bracket fixing screw holes on the bracket arc strip.
[0008] Preferably, the outer radius of the arc-shaped support strip is the same as the radius of the valve body's central hole, and after assembly, the outer side of the arc-shaped support strip is tightly attached to the inner wall of the valve body's central hole.
[0009] The beneficial effects of this utility model are: for high-capacity, large-diameter check valves, the dimensions of the support, rocker arm, and pin can be appropriately reduced without changing the fit strength between the check valve body and the support, thus saving raw materials. Attached Figure Description
[0010] Appendix Figure 1 This is a three-dimensional structural diagram of the valve body of this utility model.
[0011] Appendix Figure 2 This is a schematic diagram of the three-dimensional structure of the bracket of this utility model.
[0012] Appendix Figure 3 This is a top view of the support structure of this utility model.
[0013] Appendix Figure 4 This is a three-dimensional schematic diagram of the bracket installation structure of this utility model.
[0014] Appendix Figure 1 —4, valve body 1, support block 2, bracket 3, rocker arm fixing screw hole 4, rocker arm 5, bracket fixing screw hole 6, valve body screw hole 7, vertical rod 8, bolt 9, relaxation pad 10. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0016] Appendix Figure 1 As shown in Figure 4, a novel built-in check valve disc support fixing structure includes a valve body 1, a support 3, and a rocker arm 5. The valve body 1 has three support blocks 2 with their top surfaces in the same plane on the side wall of the central hole, and each support block is provided with a valve body screw hole 7. The support 3 includes an arc-shaped strip with three support fixing screw holes 6. Two vertical rods 8 for fixing the valve disc are provided on the lower side of the arc-shaped strip, and each vertical rod 8 has a rocker arm fixing screw hole 4 at its lower end. The support 3 is fixed to the three support blocks 2 with bolts 9 and anti-loosening washers 10, and the rocker arm 5 is fixed in the rocker arm fixing screw hole 4 with a pin.
[0017] The bracket fixing screw hole 6 on the arc-shaped strip is matched with the valve body screw hole 7 on the valve body 1 support block 2.
[0018] The two vertical rods 8 are located on both sides of the middle bracket fixing screw hole 6 among the three bracket fixing screw holes 6 on the arc-shaped strip of the bracket 3.
[0019] The outer radius of the arc-shaped strip of the bracket 3 is the same as the radius of the central hole of the valve body 1. After assembly, the outer side of the arc-shaped strip of the bracket 3 is close to the inner wall of the central hole of the valve body 1.
[0020] The beneficial effects of this utility model are: for high-capacity, large-diameter check valves, the dimensions of the support, rocker arm, and pin can be appropriately reduced without changing the fit strength between the check valve body and the support, thus saving raw materials.
[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A novel built-in check valve disc support fixing structure, characterized in that: It includes a valve body, a bracket, and a rocker arm. The valve body has three support blocks with their top surfaces in the same plane on the side wall of the central hole, and each support block has a valve body screw hole. The bracket includes an arc-shaped strip with three bracket fixing screw holes. Two vertical rods for fixing the valve disc are provided on the lower side of the arc-shaped strip, and each vertical rod has a rocker arm fixing screw hole at its lower end. The bracket is fixed to the three support blocks with bolts and anti-loosening washers, and the rocker arm is fixed in the rocker arm fixing screw hole with a pin.
2. The novel built-in check valve disc support fixing structure according to claim 1, characterized in that: The bracket fixing screw holes on the arc-shaped strip are matched with the valve body screw holes on the valve body support block.
3. The novel built-in check valve disc support fixing structure according to claim 1, characterized in that: The two vertical rods are located on both sides of the middle bracket fixing screw hole among the three bracket fixing screw holes on the arc-shaped strip of the bracket.
4. The novel built-in check valve disc support fixing structure according to claim 1, characterized in that: The outer radius of the arc-shaped support strip is the same as the radius of the valve body's central hole. After assembly, the outer side of the arc-shaped support strip is tightly attached to the inner wall of the valve body's central hole.