Drain valve connecting and fixing mechanism
By introducing components such as positioning cylinders, U-shaped adjustment brackets, and guide grooves into the drain valve connection structure, the interference problem during combined installation is solved, stability and adaptability are improved, and efficient connection and use of the drain valve are ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI YONGFA SHANGHAI PRECISION CASTING CO LTD
- Filing Date
- 2025-03-10
- Publication Date
- 2026-04-17
AI Technical Summary
The existing drain valve connection structure is prone to interference during assembly and installation, and has poor support stability and insufficient adaptability.
The valve body is connected by a combination plate and a connecting frame. The roller is installed through a positioning cylinder and a U-shaped adjusting frame. The guide groove and the tightening spring are used to achieve sliding adjustment of the clearance. At the same time, the external threaded cylinder and the adjusting threaded cylinder are used for threaded installation and positioning. The cooperation of the lever and the positioning head is used to avoid interference and improve stability.
It enables interference-free assembly and installation, improves support stability and adaptability, and facilitates adjustment and connection during use.
Smart Images

Figure CN224135257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydropower engineering, and more specifically, to a drain valve connection and fixing mechanism. Background Technology
[0002] Drainage valves are essential products in the water industry, mainly used in urban, construction, and enterprise water supply and drainage projects, industrial and domestic sewage treatment, and water conservancy projects. Among them, various medium and low-pressure valves are most commonly used, including butterfly valves and gate valves, as well as ball valves, check valves, air release valves, plug valves, diaphragm valves, pressure reducing valves, flow regulating valves, and sludge discharge valves. They are primarily used for liquid discharge or liquid level control.
[0003] The utility model patent CN219013568U discloses a drain valve connection and fixing device for hydropower installation engineering, including a drain valve body. Connecting blocks are fixedly connected to both sides of the drain valve body. Each connecting block is rotatably connected to a swing arm via a connecting shaft. A clamping plate 1 and a clamping plate 2 are welded to the sides of the two swing arms that are close to each other. Anti-detachment components for restricting pipe movement are installed on the inner walls of clamping plates 1 and 2, and fixing blocks 1 and 2 are welded to the outer walls of clamping plates 1 and 2, respectively. This utility model can firmly lock clamping plates 1 and 2 together using the positioning components, fixing the pipe within them. The anti-detachment components can also securely connect the pipe to the drain valve body. These anti-detachment components not only do not affect the disassembly of the pipe and drain valve body, but also prevent excessive water pressure and pipe rust from directly detaching the pipe from the drain valve body.
[0004] In the above-disclosed structure, the base plate and the fixing block are combined and installed by installing swing arms on both sides of the valve body, which can be installed separately and in a fixed position. However, the internal rollers are at a fixed distance, which can easily interfere during assembly. Leaving a large gap will affect the stability of the support. It cannot be adjusted and has poor adaptability, and needs to be improved. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a drain valve connection and fixing mechanism. A positioning cylinder is installed via a valve body connecting plate and a connecting frame, allowing for combined installation and positioning. A U-shaped adjusting frame is connected via a combined through-slot, enabling the installation of rollers. A guide head and a tightening spring are installed via a guide groove, allowing for sliding adjustment of the gap to avoid interference during installation. Furthermore, the positioning can be adjusted to improve the stability of the support. This mechanism is highly adaptable and convenient for combined use.
[0006] To solve the above problems, the present invention adopts the following technical solution.
[0007] A drain valve connection and fixing mechanism includes a valve body. A control seat is fixedly connected to one side surface of the valve body, and a connector is fixedly connected to the other side surface of the valve body. A combination plate is fixedly connected to both ends of the valve body. A connecting frame is fixedly connected to one side of the combination plate. A positioning cylinder is fixedly connected to one end of the connecting frame. A combination through groove is provided on the side of the positioning cylinder. A U-shaped adjusting frame is slidably installed inside the combination through groove. A roller is rotatably installed on one side of the U-shaped adjusting frame. The rollers are evenly distributed at equal angles on the inner surface of the positioning cylinder. An inclined adjusting surface is provided on one side of the outer surface of the U-shaped adjusting frame. The inclined adjusting surfaces are evenly distributed at intervals on the outer surface of the positioning cylinder. Guide grooves are provided at both ends of the combination through groove. A guide head is slidably installed at one end of the guide groove. One end of the guide head is fixedly connected to one end surface of the U-shaped adjusting frame. A clamping spring is fixedly installed on one side of the guide head. One end of the clamping spring is clamped to one end of the guide groove.
[0008] Furthermore, an external threaded cylinder is fixedly connected to one end of the outer surface of the connecting frame, and the external threaded cylinder is located at the upper end of the positioning cylinder.
[0009] Furthermore, an adjusting threaded cylinder is threadedly installed on the outer surface of the external threaded cylinder, and the lower surface of the adjusting threaded cylinder is tightly connected to the outer surface of the inclined adjusting surface.
[0010] Furthermore, one end of the adjusting threaded cylinder is sleeved on the outer surface of the positioning cylinder. The adjusting threaded cylinder can be installed and positioned by the external threaded cylinder, which is convenient for combination adjustment and use and has high adaptability.
[0011] Furthermore, the outer surface of the adjusting threaded cylinder is provided with a connecting groove, and a lever is hinged inside the connecting groove.
[0012] Furthermore, a positioning head is fixedly connected to one end of the lever, and the positioning head is elastically engaged inside the connecting groove.
[0013] Furthermore, the levers are symmetrically distributed on both sides of the adjusting threaded cylinder. The levers are hinged through connecting grooves. When not in use, they can be retracted and positioned. When in use, they can assist in rotating the adjusting threaded cylinder, facilitating threaded adjustment and ensuring stability and efficiency.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) This solution uses a valve body to connect a combination plate and a connecting frame to install a positioning cylinder, which can be installed and positioned in combination. It also connects a U-shaped adjusting frame through a combination through groove to install a roller. The guide head and a top spring are installed in combination with the guide groove, which can slide to adjust the gap, avoid interference during installation, and adjust the positioning to improve the stability of the support. It has high adaptability and is convenient for combination use.
[0016] (2) The threaded cylinder can be installed and positioned by the external threaded cylinder, which is convenient for combination adjustment and use and has high adaptability.
[0017] (3) The lever is hinged through the connecting groove. When not in use, it can be retracted and positioned. When in use, it can assist in rotating and adjusting the threaded cylinder, which is convenient for thread adjustment and is stable and efficient. Attached Figure Description
[0018] Figure 1 This is a three-dimensional external view of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;
[0020] Figure 3 This is a partial structural diagram of the connection between the positioning cylinder and the U-shaped adjusting frame of this utility model;
[0021] Figure 4 This is a partial structural diagram of the roller connection of this utility model;
[0022] Figure 5 This is a three-dimensional structural diagram of the U-shaped adjustment frame of this utility model.
[0023] Explanation of the labels in the diagram:
[0024] 1 Valve body, 11 Control seat, 12 Connector, 13 Combination plate, 14 Connecting frame, 15 Positioning cylinder, 16 Combination through groove, 17 U-shaped adjusting frame, 18 Roller, 19 Inclined adjusting surface, 2 Guide groove, 21 Guide head, 22 Tightening spring, 23 External threaded cylinder, 24 Adjusting threaded cylinder, 25 Connecting groove, 26 Lever, 27 Positioning head. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of 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.
[0026] Please see Figure 1 , Figure 4 and Figure 5A drain valve connection and fixing mechanism includes a valve body 1. A control seat 11 is fixedly connected to one side surface of the valve body 1, and a connector 12 is fixedly connected to the other side surface of the valve body 1. A combination plate 13 is fixedly connected to both ends of the valve body 1. A connecting frame 14 is fixedly connected to one side of the combination plate 13. A positioning cylinder 15 is fixedly connected to one end of the connecting frame 14. A combination through groove 16 is provided on the side of the positioning cylinder 15. A U-shaped adjusting frame 17 is slidably installed inside the combination through groove 16. A roller 18 is rotatably installed on one side of the inside of the U-shaped adjusting frame 17. The rollers 18 are evenly distributed at equal angles on the inside surface of the positioning cylinder 15. An inclined adjusting surface is provided on one side of the outer surface of the U-shaped adjusting frame 17. 19. Inclined adjustment surfaces 19 are evenly distributed on the outer surface of the positioning cylinder 15. Both ends of the combined through groove 16 are provided with guide grooves 2. A guide head 21 is slidably installed at one end of the guide groove 2. One end of the guide head 21 is fixedly connected to one end surface of the U-shaped adjustment frame 17. A clamping spring 22 is fixedly installed on one side of the guide head 21. One end of the clamping spring 22 is clamped and connected to one end of the guide groove 2. In use, the positioning cylinder 15 can be fitted onto the installation pipe to align and install the connector 12, which is conducive to positioning and installing the valve body and is convenient for connection and use. Furthermore, the rolling support of the roller 18 improves the stability of the installation position and facilitates alignment and adjustment.
[0027] Please see Figure 2 and Figure 3 One end of the outer surface of the connecting frame 14 is fixedly connected to an external threaded cylinder 23. The external threaded cylinder 23 is located at the upper end of the positioning cylinder 15. An adjusting threaded cylinder 24 is threadedly installed on the outer surface of the external threaded cylinder 23. The lower surface of the adjusting threaded cylinder 24 is tightly connected to the outer surface of the inclined adjustment surface 19. One end of the adjusting threaded cylinder 24 is sleeved on the outer surface of the positioning cylinder 15. The adjusting threaded cylinder can be threadedly installed and positioned, which is convenient for combination adjustment and use, and has high adaptability. By adjusting the threaded cylinder 24 on the surface of the external threaded cylinder 23, the inclined adjustment surface 19 is squeezed, which can push the U-shaped adjustment frame 17 to slide, which is convenient for adjusting the spacing of the rollers 18, thus reserving a larger installation gap, avoiding interference, and facilitating adjustment and use.
[0028] Please see Figure 2 and Figure 3The outer surface of the adjusting threaded cylinder 24 is provided with a connecting groove 25. A lever 26 is hinged inside the connecting groove 25. One end of the lever 26 is fixedly connected to a positioning head 27. The positioning head 27 is elastically engaged inside the connecting groove 25. The levers 26 are symmetrically distributed on both sides of the adjusting threaded cylinder 24. The levers are hinged through the connecting groove. When not in use, they can be retracted and positioned. When in use, they can assist in rotating the adjusting threaded cylinder, making thread adjustment convenient, stable and efficient. During adjustment, the levers 26 can be flipped out from inside the connecting groove 25 for easy hand rotation, thereby rotating the adjusting threaded cylinder 24. This can squeeze the inclined adjusting surface 19, thereby pushing the U-shaped adjusting frame 17 to slide inside the combined through groove 16. This ensures that the roller 18 is pressed against the mounting surface, providing auxiliary support and ensuring the stability of the internal rolling adjustment. This avoids interference during installation and improves adaptability.
[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A drain valve connecting fixing mechanism, comprising a valve body (1), one side surface of the valve body (1) is fixedly connected with a control seat (11), the other side surface of the valve body (1) is fixedly connected with a connecting head (12), characterized in that: Both ends of the valve body (1) are fixedly connected to a combination plate (13). A connecting frame (14) is fixedly connected to one side of the combination plate (13). A positioning cylinder (15) is fixedly connected to one end of the connecting frame (14). A combination through groove (16) is provided on the side of the positioning cylinder (15). A U-shaped adjusting frame (17) is slidably installed inside the combination through groove (16). A roller (18) is rotatably installed on one side of the inside of the U-shaped adjusting frame (17). The rollers (18) are evenly distributed at equal angles on the inner surface of the positioning cylinder (15). (17) has an inclined adjustment surface (19) on one side of its outer surface. The inclined adjustment surface (19) is evenly distributed on the outer surface of the positioning cylinder (15). The combined through groove (16) has guide grooves (2) at both ends. A guide head (21) is slidably installed at one end of the guide groove (2). One end of the guide head (21) is fixedly connected to one end surface of the U-shaped adjustment frame (17). A top spring (22) is fixedly installed on one side of the guide head (21). One end of the top spring (22) is tightly connected to one end of the guide groove (2).
2. The drain valve connecting and fixing mechanism according to claim 1, characterized in that: One end of the outer surface of the connecting frame (14) is fixedly connected to an external threaded cylinder (23), which is located at the upper end of the positioning cylinder (15).
3. The drain valve connecting and fixing mechanism according to claim 2, characterized in that: The outer surface of the external threaded cylinder (23) is threaded with an adjusting threaded cylinder (24), and the lower surface of the adjusting threaded cylinder (24) is tightly connected to the outer surface of the inclined adjusting surface (19).
4. The drain valve connecting and fixing mechanism according to claim 3, characterized in that: One end of the adjusting threaded cylinder (24) is fitted onto the outer surface of the positioning cylinder (15).
5. The drain valve connecting and fixing mechanism according to claim 3, characterized in that: The outer surface of the adjusting threaded cylinder (24) is provided with a connecting groove (25), and a lever (26) is hinged inside the connecting groove (25).
6. The drain valve connecting and fixing mechanism according to claim 5, characterized in that: One end of the lever (26) is fixedly connected to a positioning head (27), which is elastically engaged inside the connecting groove (25).
7. The drain valve connecting and fixing mechanism according to claim 5, characterized in that: The levers (26) are symmetrically distributed on both sides of the adjusting threaded cylinder (24).
Citation Information
Patent Citations
Drain valve connecting and fixing equipment for water and electricity installation engineering
CN219013568U