A valve seat for easy installation

Abstract

This utility model relates to the field of valve seat technology for easy installation, specifically an easy-to-install valve seat, including a valve body. A handwheel assembly is bolted to the top of the valve body, and a valve core is fixedly connected to the bottom of the handwheel assembly. A valve seat frame is mounted on the bottom of the valve core, and a connecting plate is mounted on the surface of the valve seat frame. A pressure plate is rotatably mounted on the top of the connecting plate, and a screw is mounted on the bottom of the connecting plate. A rubber ring is fitted on the surface of the screw. The beneficial effects are: by providing a pressure plate and a screw, the friction between the valve core and the valve seat is converted into friction between the pressure plate and the connecting plate, which helps to prevent the seal between the valve seat and the valve body from being damaged. When the screw passes through the valve seat frame, the rubber ring on the screw will be stuck in the gap between the screw and the bottom of the valve seat frame, thereby limiting the position of the valve seat frame. This method of disassembling the valve seat facilitates the installation of the valve seat and effectively prevents friction between the valve seat and the valve core.

Description

Technical Field

[0001] This utility model relates to the field of valve seats that are easy to install, specifically a valve seat that is easy to install. Background Technology

[0002] An easy-to-install valve seat consists of a valve body, a valve seat, a handwheel assembly, and a valve core. The valve body is the "outer shell and skeleton" of the entire valve, with a pre-reserved flow channel and valve seat mounting position inside, while also supporting the handwheel assembly. After the medium flows in from the valve body inlet, it must pass through the mating area between the valve seat and the valve core before flowing out from the outlet. The valve body always serves to guide the medium and fix the various components. The handwheel assembly is mounted on the top of the valve body. When the handwheel is rotated, the circular motion of the handwheel is converted into linear motion through the valve stem. Since the valve core is fixed at the lower end of the valve stem, the valve stem directly drives the valve core to move synchronously, providing power for the mating of the valve core and the valve seat. The valve seat is fixed at a key position in the flow channel of the valve body, and its inner side has a sealing surface. The sealing surface at the bottom of the valve core matches the shape of the sealing surface of the valve seat. When the valve core moves closer to the valve seat under the action of the valve stem, the sealing surfaces of the two fit tightly together, blocking the flow channel and closing the valve. Reverse rotation of the handwheel moves the valve core away from the valve seat, creating a gap between them. The medium can flow through the gap, opening the valve. Adjusting the rotation angle of the handwheel controls the size of the gap, thereby regulating the medium flow rate.

[0003] In the prior art, a valve seat that is easy to install requires the valve seat to be installed inside the valve body during the installation process. With the development of the market, gaskets are installed on the surface of the valve seat to prevent gaps from being left between the valve seat and the valve body.

[0004] However, even with the installation of gaskets, it is still difficult to mate the valve seat with the bottom of the valve body and insert it into the valve body. Furthermore, when the valve is opened or closed, the handwheel assembly drives the valve core to rotate, and the valve core rotates and rubs against the valve seat, causing wear on the valve seat. This leads to the failure of the seal between the valve seat and the valve body, allowing the medium to leak from the gaps in the valve body into the external environment. Therefore, a valve seat that is easy to install is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a valve seat that is easy to install, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve seat that is easy to install, comprising a valve body, a handwheel assembly connected to the top of the valve body by bolts, a valve core fixedly connected to the bottom of the handwheel assembly, a valve seat frame mounted on the bottom of the valve core, a connecting plate mounted on the surface of the valve seat frame, a pressure plate rotatably mounted on the top of the connecting plate, a screw mounted on the bottom of the connecting plate, and a rubber ring sleeved on the surface of the screw.

[0007] Preferably, the valve seat frame has a circular groove on its surface, the connecting plate is T-shaped and cylindrical, an inner ring is inserted into the top of the connecting plate, a plurality of beads are provided on the surface of the inner ring, an outer ring is rotatably provided on the surface of the beads, the connecting plate is inserted into the inner ring, the pressure plate has a groove on its surface, and the outer ring is fixed in the groove.

[0008] Preferably, a rubber ring is fitted on the surface of the pressure plate, and the rubber ring is in contact with the valve seat frame.

[0009] Preferably, the connecting plate is inserted into the valve seat frame and located inside the circular groove, and the pressure plate is located on top of the connecting plate and located inside the groove.

[0010] Preferably, the valve seat frame surface has an insertion hole, and the screw passes through the insertion hole and is threadedly connected to the connecting plate.

[0011] Preferably, the rubber ring is ring-shaped, and the contact portion between the rubber ring and the valve seat frame is arc-shaped. The rubber ring is fixedly connected to the screw and is located between the screw and the valve seat frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By using a pressure plate and a screw, the valve core is pressed onto the pressure plate and then rotated. The valve core drives the pressure plate to rotate, causing the pressure plate to rotate on the connecting plate via balls. This converts the friction between the valve core and the valve seat into friction between the pressure plate and the connecting plate, which helps prevent the seal between the valve seat and the valve body from being damaged and prevents the medium from leaking from the valve body gaps into the external environment, thus protecting the valve core. The screw passes through the valve seat frame, and the rubber ring on the screw gets stuck in the gap between the screw and the bottom of the valve seat frame, thus limiting the movement of the valve seat frame. This method of disassembling the valve seat facilitates the installation of the valve seat and effectively prevents friction between the valve seat and the valve core. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front view of the present utility model;

[0016] Figure 3 for Figure 2 Sectional view of AA;

[0017] Figure 4 This is a schematic diagram of the combined structure of the valve seat frame and the pressure plate.

[0018] Figure 5 for Figure 4 Top view;

[0019] Figure 6 for Figure 5 Sectional view of BB;

[0020] Figure 7 for Figure 6 A magnified structural diagram of A in the middle;

[0021] Figure 8 for Figure 6 A magnified structural diagram of B in the diagram.

[0022] In the diagram: 1. Valve body; 2. Handwheel assembly; 3. Valve core; 4. Valve seat frame; 5. Connecting plate; 6. Pressure plate; 8. Screw; 9. Rubber ring; 10. Circular groove; 11. Inner ring; 12. Ball; 13. Rubber ring; 14. Outer ring; 17. Insertion hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] Please see Figures 1-8 This utility model provides a technical solution: a valve seat that is easy to install, including a valve body 1. A handwheel assembly 2 is bolted to the top of the valve body 1, and a valve core 3 is fixedly connected to the bottom of the handwheel assembly 2. The valve core 1 is overlapped on a pressure plate 6. Because a rubber ring 9 is installed on the edge of the pressure plate 6, the pressure plate 6 and the valve seat frame 4 are in a sealed state. The valve seat frame 4 is mounted on the bottom of the valve core 3. The valve frame 4 includes a top insertion part, a middle main body part, and a bottom fixing part. The insertion part is for inserting with the valve core 1, the middle part is for fixing a connecting plate 5 to the valve seat frame 4 by a screw 8, and the bottom fixing part is... Part of the purpose is to fix the valve seat frame 4 inside the valve body 1. The valve seat frame 4 is equipped with a connecting plate 5. The connecting plate 5 is disassembled by a screw 8, thereby achieving the purpose of disassembling the connecting plate 5 and the pressure plate 6. The pressure plate 6 rotates on the top of the connecting plate 5. A rubber ring 13 is sleeved on the surface of the pressure plate 6. The rubber ring 13 contacts the valve seat frame 4. When the valve core 3 rotates, it drives the pressure plate 6 to rotate, which in turn causes the ball 12 to rotate. Since the ball 12 is fixedly connected to the inner ring 11, the pressure plate ultimately rotates on the connecting plate 5 through the ball 12. Its working principle is similar to that of a bearing.

[0026] Example 2

[0027] Based on Embodiment 1, a circular groove 10 is provided on the surface of the valve seat frame 4. The circular groove 10 is for inserting the connecting plate 5 and the pressure plate 6. The pressure plate 6 is located above the connecting plate 5. The connecting plate 5 is inserted into the valve seat frame 4 and is located inside the circular groove 10. The pressure plate is located at the top of the connecting plate and is located inside the groove. The connecting plate 5 is inserted into the circular groove 10 of the valve seat frame 4.

[0028] Example 3

[0029] Based on Embodiment 2, the connecting plate 5 is a T-shaped cylindrical shape, with an inner ring 11 inserted into the top of the connecting plate 5. The surface of the inner ring 11 is provided with multiple beads 12, and an outer ring 14 is rotatably provided on the surface of the beads 12. The connecting plate 5 is inserted into the inner ring 11. When the valve core 3 rotates, it drives the pressure plate 6 to rotate, which in turn causes the beads 12 to rotate. Since the beads 12 are fixedly connected to the inner ring 11, the pressure plate ultimately rotates on the connecting plate 5 through the beads 12. This working principle of rotating on the connecting plate 5 through the beads 12 is similar to that of a bearing.

[0030] Example 4

[0031] Based on Embodiment 3, the pressure plate 6 has a groove on its surface, the outer ring 14 is fixed on the groove, the bottom of the connecting plate 5 is equipped with a screw 8, and a rubber ring 9 is fitted on the surface of the screw 8. The diameter and length of the rubber ring 9 must be greater than the distance between the screw 8 and the valve seat frame 4 so that the screw 8 can pass through the insertion hole 17 on the valve seat frame 4 and fill the gap between the screw 8 and the valve seat frame. The valve seat frame 4 has an insertion hole 17 on its surface, and the screw 8 passes through the insertion hole 17 and is threaded to the connecting plate 5. The screw 8 is pre-installed on the connecting plate 5, and the screw 8 is aligned with the screw hole of the connecting plate 5. Then it is screwed until the screw 8 is fixed on the connecting plate 5. The rubber ring 9 is ring-shaped, and the contact part between the rubber ring 9 and the valve seat frame 4 is arc-shaped. For easier understanding, the rubber ring 9 is now further explained. In fact, the rubber ring 9 is a spherical structure with a round opening on its surface. The round opening is fitted onto the rod body of the fixed screw 8. After the screw 8 passes through the insertion hole 17, the gap between the screw 8 and the valve seat frame 4 is filled. The rubber ring 9 is fixedly connected to the screw 8 and is located between the screw 8 and the valve seat frame 4. The pre-installed screw 8 will pass through the valve seat frame 4 and extend from the insertion hole 17. The rubber ring 9 on the screw 8 will pass through the insertion hole 17 and thus make frictional contact with the valve seat frame 4 until the rubber ring 9 is located at the bottom gap between the valve seat frame 4 and the screw 8.

[0032] In use, first install the screw 8 on the connecting plate 5, align the screw 8 with the screw hole of the connecting plate 5, and then screw it until the screw 8 is fixed on the connecting plate 5. Then insert the connecting plate 5 into the circular groove 10 of the valve seat frame 4. The pre-installed screw 8 will pass through the valve seat frame 4 and extend from the insertion hole 17. The rubber ring 9 on the screw 8 will pass through the insertion hole 17 and thus make frictional contact with the valve seat frame 4 until the rubber ring 9 is located at the bottom gap between the valve seat frame 4 and the screw 8. Then place this utility model inside the valve body 1. The protrusion on the valve seat frame 4 will first contact the valve body 1 and thus be inserted together.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve seat that is easy to install, comprising a valve body (1), wherein a handwheel assembly (2) is bolted to the top of the valve body (1), and a valve core (3) is fixedly connected to the bottom of the handwheel assembly (2), characterized in that: The valve core (3) is equipped with a valve seat frame (4) at the bottom, a connecting plate (5) is mounted on the surface of the valve seat frame (4), a pressure plate (6) is rotatably mounted on the top of the connecting plate (5), a screw (8) is mounted on the bottom of the connecting plate (5), and a rubber ring (9) is sleeved on the surface of the screw (8). The valve seat frame (4) has a circular groove (10) on its surface. The connecting plate (5) is a T-shaped cylinder. An inner ring (11) is inserted into the top of the connecting plate (5). Multiple beads (12) are provided on the surface of the inner ring (11). An outer ring (14) is rotatably provided on the surface of the beads (12). The connecting plate (5) is inserted into the inner ring (11). A groove is provided on the surface of the pressure plate (6). The outer ring (14) is fixed on the groove.

2. The valve seat for easy installation according to claim 1, characterized in that: A rubber ring (13) is fitted on the surface of the pressure plate (6), and the rubber ring (13) contacts the valve seat frame (4).

3. The valve seat for easy installation according to claim 1, characterized in that: The connecting plate (5) is inserted into the valve seat frame (4) and is located inside the circular groove (10). The pressure plate is located on top of the connecting plate and is located inside the groove.

4. The valve seat for easy installation according to claim 1, characterized in that: The valve seat frame (4) has a socket (17) on its surface, and the screw (8) passes through the socket (17) and is threadedly connected to the connecting plate (5).

5. The valve seat for easy installation according to claim 1, characterized in that: The rubber ring (9) is ring-shaped, and the part of the rubber ring (9) that contacts the valve seat frame (4) is arc-shaped. The rubber ring (9) is fixedly connected to the screw (8) and is located between the screw (8) and the valve seat frame (4).

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