Valve body structure with adjustable lip

Abstract

The utility model discloses a valve body structure with an adjustable lip edge, which comprises a body, the lip edge and a fastener, a cock cavity is concavely arranged on the upper surface of the body, a flow channel communicated with the cock cavity is arranged on the side edge of the body, the lip edge is arranged in the flow channel, and the lip edge and the body are fixed through the fastener; a first fixing edge is radially and inwards convexly arranged in the flow channel, a second fixing edge is radially and outwards convexly arranged at one end of the lip edge, an adjusting gasket is arranged between the first fixing edge and the second fixing edge, and a fastener is connected with the first fixing edge and the second fixing edge. According to the valve body structure, the lip side and the body are of a split assembly structure, so that parts are standardized, universality is improved, machining difficulty is lowered, consistency of the size of the valve body is guaranteed, and the percent of pass of the valve body is improved; meanwhile, the time cost of surfacing, manual polishing and the like is saved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plug valves, and in particular to a valve body structure with an adjustable lip. Background Technology

[0002] For soft-seal lined plug valves, the undefined dimensions of the valve body lip have always been a challenge. If an integral casting solution is adopted, due to differences in the casting environment and process, even with the same mold, defects such as different lip height dimensions, deformation, local unevenness, or missing parts may occur. To eliminate these defects, additional processes such as welding and manual grinding are required, which not only consumes time and increases manufacturing costs, but also makes it difficult to guarantee standardization and valve body consistency. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the main purpose of this utility model is to overcome the shortcomings of the prior art and disclose a valve body structure with adjustable lip, including a body, a lip and a fastener. The upper surface of the body is recessed with a stopcock cavity, and the side of the body is provided with a flow channel communicating with the stopcock cavity. The lip is placed in the flow channel and is fixed to the body by the fastener.

[0004] The flow channel has a first fixing edge that protrudes radially inward, and one end of the lip has a second fixing edge that protrudes radially outward. An adjusting shim is provided between the first fixing edge and the second fixing edge, and the fastener connects the first fixing edge and the second fixing edge.

[0005] Furthermore, the fastener is a set screw.

[0006] Furthermore, at least two fasteners are provided around the inner circumference of the flow channel.

[0007] Furthermore, the valve body structure also includes a clamping ring, which is fixed inside the flow channel, and one end of the clamping ring is pressed against the lip.

[0008] Furthermore, the clamping ring is threaded into the flow channel.

[0009] Furthermore, a buffer pad is provided between the clamping ring and the lip.

[0010] Furthermore, the buffer pad is an O-ring.

[0011] The beneficial effects achieved by this utility model are as follows:

[0012] The valve body structure of this utility model adopts a separate assembly structure for the lip and the body, which standardizes the parts, improves versatility, reduces processing difficulty, ensures the consistency of valve body dimensions, and improves the valve body qualification rate; at the same time, it saves the time cost of welding, manual grinding, etc., and reduces manufacturing costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a valve body structure with an adjustable lip according to the present invention;

[0014] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0015] The attached figures are labeled as follows:

[0016] 1. Body, 2. Lip, 3. Fastener, 4. Adjusting shim, 5. Pressure ring, 6. Buffer shim, 11. Plug cavity, 12. Flow channel, 13. First fixed edge, 21. Second fixed edge. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] A valve body structure with an adjustable lip, such as Figures 1-2 As shown, the valve includes a body 1, a lip 2, and fasteners 3. A stopcock cavity 11 is recessed on the upper surface of the body 1, and a flow channel 12 communicating with the stopcock cavity 11 is provided on the side of the body 1. The lip 2 is placed within the flow channel 12 and is fixed to the body 1 by the fasteners 3. The lip 2 and body 1 adopt an assembly structure, reducing processing difficulty and improving the valve body's yield rate. It also saves time-consuming processes such as welding and manual grinding, thus reducing manufacturing costs.

[0019] A first fixing edge 13 protrudes radially inward within the flow channel 12, and a second fixing edge 21 protrudes radially outward at one end of the lip 2. An adjusting shim 4 is provided between the first fixing edge 13 and the second fixing edge 21, and a fastener 3 connects the first fixing edge 13 and the second fixing edge 21. Specifically, the adjusting shim 4 is provided in multiple specifications, that is, adjusting shims 4 of different thicknesses are selected according to actual needs to adjust the length of the end of the lip 2 protruding from the flow channel 12.

[0020] In one embodiment, such as Figures 1-2As shown, the fastener 3 is a set screw. The first fixing edge 13 and the second fixing edge 21 are provided with screw holes that cooperate with the set screw at corresponding positions. The set screw connects the lower fixing edge 13 and the second fixing edge 21 to fix the lip 2 to the body 1, prevent the lip 2 from rotating in the flow channel 12, and avoid interference with the plug inside the plug cavity 11.

[0021] In one embodiment, such as Figures 1-2 As shown, at least two fasteners 3 are provided around the inner circumference of the flow channel 12. Preferably, the number of fasteners 3 can be determined according to the inner circumference length. When the inner circumference length increases, the number of fasteners 3 can be increased to ensure that the lip 2 and the body 1 are reliably installed.

[0022] In one embodiment, such as Figures 1-2 As shown, the valve body structure also includes a clamping ring 5, which is fixed inside the flow channel 12, and one end of the clamping ring 5 is pressed against the lip 2. Specifically, the clamping ring 5 is a cylindrical tubular structure.

[0023] In the above embodiments, such as Figures 1-2 As shown, the clamping ring 5 is threadedly engaged with the flow channel 12. Specifically, the outer wall of the clamping ring 5 is provided with an external thread, and the inner wall of the flow channel 12 is provided with an internal thread that mates with it. By rotating the clamping ring 5, the axial movement of the clamping ring 5 within the flow channel 12 is controlled, and the clamping ring 5 presses against the lip 2.

[0024] In the above embodiments, such as Figures 1-2 As shown, a buffer pad 6 is provided between the clamping ring 5 and the lip 2. Preferably, the buffer pad 6 is an O-ring.

[0025] When assembling the valve body structure of this utility model, as follows: Figures 1-2 As shown, first select an adjusting shim of the corresponding thickness and place it into the flow channel 12. Then install the lip 2, making one end of the lip 2 protrude from the flow channel 12. Connect and fix the first fixing edge 13 and the second fixing edge 21 with fasteners 3. Then install the buffer shim 6 and the clamping ring 5, and rotate the clamping ring 5 so that the clamping ring 5 is pressed against the lip 2 by the buffer shim 6 to ensure that the position of the lip 2 is fixed.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A lip-adjustable valve body structure, characterized by, The device includes a body, a lip, and fasteners. The upper surface of the body is recessed with a stopcock cavity, and the side of the body is provided with a flow channel communicating with the stopcock cavity. The lip is placed in the flow channel and is fixed to the body by the fasteners. The flow channel has a first fixing edge that protrudes radially inward, and one end of the lip has a second fixing edge that protrudes radially outward. An adjusting shim is provided between the first fixing edge and the second fixing edge, and the fastener connects the first fixing edge and the second fixing edge.

2. The valve body structure with an adjustable lip according to claim 1, characterized in that, The fastener is a set screw.

3. The valve body structure with an adjustable lip according to claim 1, characterized in that, At least two fasteners are provided around the inner circumference of the flow channel.

4. The valve body structure with an adjustable lip according to claim 1, characterized in that, The valve body structure also includes a clamping ring, which is fixed inside the flow channel, and one end of the clamping ring is pressed against the lip.

5. The valve body structure with an adjustable lip according to claim 4, characterized in that, The clamping ring is threaded into the flow channel.

6. The valve body structure with an adjustable lip according to claim 4, characterized in that, A buffer pad is provided between the clamping ring and the lip.

7. The valve body structure with an adjustable lip according to claim 6, characterized in that, The buffer pad is an O-ring.

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