Valve plate obliquely connected through bolts for transmission valve

Abstract

The utility model discloses a valve plate obliquely connected by bolts for a transmission valve, which comprises a plate body connected to a back plate through a plurality of first bolts; the plate body is provided with a first surface; the back plate is provided with a second surface, the second surface is attached to the first surface, and the area size of the second surface is smaller than that of the first surface; when the first surface is an inclined surface, the second surface is a plane, or when the first surface is a plane, the second surface is an inclined surface; therefore, the technical problems that the contact area of the connecting position is small, friction abrasion can occur, abrasion particles are generated, and pipeline pollution is caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve plate for a transmission valve that is connected at an angle with bolts. Background Technology

[0002] In a vacuum system, valves are used to control the flow of gas in the pipeline. Valves play a role in controlling flow rate, regulating pressure, or isolating, thereby realizing the control and operation of the system. When opening and closing the valve, it is necessary to ensure a high vacuum degree and low particle size in the cavity, that is, the valve needs to have excellent sealing performance and minimize the generation of particles.

[0003] Traditional valves, such as transfer valves, generally include a long push rod, a short push rod, and a valve plate. The long push rod pushes the valve plate and the short push rod into the valve body, and the short push rod presses the valve plate onto the valve body, thereby sealing the passage on the valve body. Since the stroke of the short push rod and the valve plate is located inside the valve body, friction will occur during the movement, resulting in wear and tear, producing wear particles, and causing pipeline contamination.

[0004] To reduce particle generation, the transmission valve uses a push rod to drive the transmission assembly, which in turn drives the valve plate to extend and press down. That is, when the transmission valve needs to be closed, the transmission assembly first pushes out the valve plate and then presses it down to contact the valve body. Conversely, the valve opens. This method ensures that only the valve plate and back plate enter the valve body, reducing the generation of wear particles.

[0005] However, some shortcomings still exist in actual use: due to the line contact connection between the valve plate and the back plate, the contact area at the connection is small and the pressure at the connection is large. The continuous opening and closing action of the transmission valve causes loosening between the valve plate and the back plate, resulting in friction and wear, generating wear particles, and causing pipeline contamination. Utility Model Content

[0006] In view of the above-mentioned shortcomings in the related technologies, the purpose is to provide a valve plate for a transmission valve that is bolted and inclined to solve the technical problem that the contact area at the connection point in the related technologies is small, which leads to friction and wear, generates wear particles, and causes pipeline contamination.

[0007] The technical solution to achieve the objective is: a valve plate for a transmission valve that is obliquely connected by bolts, comprising: a plate body connected to a back plate by a plurality of first bolts;

[0008] The plate has a first surface;

[0009] The back plate has a second surface that is attached to the first surface, and the area of ​​the second surface is smaller than that of the first surface.

[0010] When the first surface is an inclined plane, the second surface is a plane;

[0011] Alternatively, if the first surface is a plane, the second surface is an inclined plane.

[0012] Furthermore, the area of ​​the first surface is 1.5 to 3 times the area of ​​the second surface.

[0013] Furthermore, the second surface is positioned in the middle of the first surface, and the width dimension A of the second surface is smaller than the width dimension B of the first surface.

[0014] Furthermore: when the first surface is an inclined surface, the inclination angle C is 89.61°.

[0015] Furthermore: when the second surface is an inclined plane, the inclination angle D is 89.61°.

[0016] Furthermore, the plate has a rectangular shape.

[0017] Furthermore: the plate also has several grooves and several pads;

[0018] The pads are arranged one-to-one in the grooves and connected to the plates. The pads are placed between the plates and the back plates to adjust the gap between the plates and the back plates.

[0019] Furthermore: the number of grooves is six, three in a horizontal row, with parallel intervals between the rows;

[0020] The number of pads is six, arranged one-to-one in the groove, and connected to the plate by a second bolt.

[0021] Furthermore: the pad body has a rectangular block structure;

[0022] When the third surface on the pad protrudes from the groove, the plate and the back plate are not in contact and there is a gap. The third surface has a first state and a second state.

[0023] In the first state, the third surface is a plane, the second surface is an inclined plane, and the third surface is in contact with the second surface;

[0024] In the second state, the third surface is an inclined surface, the second surface is a plane, and the third surface is in contact with the second surface.

[0025] Furthermore: when the third surface is an inclined surface, the inclination angle E is 89.61°.

[0026] The above technical solution has the following beneficial effects: A valve plate for a transmission valve with a bolted inclined connection, compared with related technologies, has the plate body connected to a back plate by a first bolt; the plate body has a first surface; the back plate has a second surface, the second surface is in contact with the first surface, and the area of ​​the second surface is smaller than that of the first surface; when the first surface is inclined, the second surface is flat, or when the first surface is flat, the second surface is inclined; because the contact between the plate body and the back plate is surface-to-surface, compared with line contact, the contact area between the plate body and the back plate is increased, the connection between the plate body and the back plate is tighter, the probability of friction and wear is reduced, and the pollution of the pipeline is reduced;

[0027] This overcomes the technical problem that the small contact area at the connection point leads to friction and wear, generating wear particles and causing pipeline contamination. It achieves the technical effect of increasing the contact area at the connection point, reducing the probability of friction and wear, and reducing pipeline contamination, thus demonstrating its practicality. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure after the plate and back plate are combined.

[0029] Figure 2 for Figure 1 Front view;

[0030] Figure 3 A schematic diagram of a plate with grooves and pads;

[0031] Figure 4 This is a partial sectional view of the plate.

[0032] Figure 5 This is a schematic diagram of the structure of the pad.

[0033] In the diagram: 10. Plate, 11. First side, 10-1. Groove, 10-2. Pad, 10-21. Third side, 100. Back plate, 101. Second side. Detailed Implementation

[0034] To make the content easier to understand, the following detailed description is provided with reference to specific embodiments and accompanying drawings;

[0035] A valve plate for a transmission valve, connected at an angle with bolts, solves the technical problem in related technologies where the small contact area at the connection point leads to frictional wear, generating wear particles and causing pipeline contamination. This new design can be manufactured and used, achieving the positive effects of increasing the contact area at the connection point, reducing the probability of frictional wear, and minimizing pipeline contamination. The overall concept is as follows:

[0036] Implementation

[0037] like Figure 1 , Figure 2 As shown; a valve plate for a transmission valve that is obliquely connected by bolts includes: a plate body 10, which is connected to a back plate 100 by a plurality of first bolts;

[0038] The plate 10 has a first surface 11;

[0039] The back plate 100 has a second surface 101, which is attached to the first surface 11, and the area of ​​the second surface 101 is smaller than that of the first surface 11.

[0040] When the first surface 11 is an inclined plane, the second surface 101 is a plane;

[0041] Alternatively, if the first surface 11 is a plane, the second surface 101 is an inclined plane;

[0042] Specifically, since the contact between the plate 10 and the back plate 100 is surface-to-surface, after the first surface 11 and the second surface 101 are attached, the plate 10 and the back plate 100 are connected by the first bolt (internal hex bolt). Compared with the line contact in the prior art, this increases the contact area between the plate 10 and the back plate 100, and the connection between the plate 10 and the back plate 100 is tighter. This reduces the probability of loosening and friction wear between the plate 10 and the back plate 100, reduces the generation of wear particles, and reduces the pollution to the pipeline.

[0043] Another implementation method:

[0044] like Figure 1 , Figure 2 As shown; in practice, the area of ​​the first surface 11 is 1.5 to 3 times the area of ​​the second surface 101, which not only ensures the contact area between the second surface 101 and the first surface 11, but also provides the plate 10 with sufficient area to block the channel on the valve body.

[0045] The plate 10 has a rectangular shape; the second surface 101 is located in the middle of the first surface 11, and the width A of the second surface 101 is smaller than the width B of the first surface 11. The control of the width dimension ensures that the plate 10 is relatively balanced after being connected to the back plate 100, resulting in relatively good structural reliability and reducing the probability of friction and wear.

[0046] When the first surface 11 is a slope, the inclination angle C is 89.61°. The slope allows the plate 10 to have an inclination angle after it is connected to the back plate 100, which helps the plate 10 to block and stick to the channel on the valve body.

[0047] When the second surface 101 is a slope, the inclination angle D is 89.61°. The slope allows the plate 10 to have an inclination angle after it is connected to the back plate 100, which helps the plate 10 to block and stick to the channel on the valve body.

[0048] The back plate 100 has an approximate "L" shape and is connected to the plate 10 by a first bolt (internal hex bolt), making assembly relatively convenient and the connection relatively reliable.

[0049] The “channel on the valve body” is a structure in the prior art and is not the inventive point of this utility model. It is only used to better describe this utility model and facilitate understanding of the technical solution of this utility model.

[0050] Another implementation method:

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown; in practice, the plate 10 has a rectangular structure and a regular shape, which is beneficial for processing and manufacturing;

[0052] The plate 10 also has a plurality of grooves 10-1 and a plurality of pads 10-2; the pads 10-2 are arranged one-to-one in the grooves 10-1 and connected to the plate 10, and the pads 10-2 are placed between the plate 10 and the back plate 100 to adjust the gap between the plate 10 and the back plate 100, which provides relatively good flexibility in use;

[0053] The number of grooves 10-1 is six, three in a row, and the rows are arranged in parallel intervals. For example, the grooves 10-1 are waist-shaped grooves and / or U-shaped grooves; the number of pads 10-2 is six, one-to-one in the grooves 10-1, and they are connected to the plate 10 by a second bolt (internal hex bolt).

[0054] The pad 10-2 is a rectangular block structure with a regular shape, which is beneficial for processing and manufacturing.

[0055] When the third surface 10-21 on the pad 10-2 protrudes from the groove 10-1, the plate 10 and the back plate 100 are not in contact and have a gap. The third surface 10-21 has a first state and a second state.

[0056] In the first state, the third surface 10-21 is a plane, the second surface 101 is an inclined surface, and the third surface 10-21 is in contact with the second surface 101;

[0057] In the second state, the third surface 10-21 is an inclined surface, the second surface 101 is a plane, and the third surface 10-21 is in contact with the second surface 101;

[0058] When the third surface 10-21 is a slope, the inclination angle E is 89.61°. The slope allows the plate 10 to have an inclination angle after it is connected to the back plate 100, which helps the plate 10 to block and adhere to the channel on the valve body.

[0059] In the description, it should be understood that the terms "up", "down", "left", "right", "front", "back", "horizontal", etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. They are only for the convenience of description or to simplify the description, and do not indicate a specific orientation that must be present. The operation process described in the embodiments is not an absolute usage step, and corresponding adjustments can be made in actual use.

[0060] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art; the words “first,” “second,” and similar terms used in the specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components, and similarly, the words “a” or “a” and similar terms do not determine a quantity limitation, but rather indicate the presence of at least one, as determined by the content of the embodiments;

[0061] The above description is only a preferred embodiment, but the scope of protection is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the disclosed technology, based on the technical solution and inventive concept, should be included within the scope of protection.

Claims

1. A valve plate for a transmission valve that is obliquely connected by bolts, characterized in that, include: The plate (10) is connected to the back plate (100) by a number of first bolts; The plate (10) has a first surface (11); The back plate (100) has a second surface (101) that is attached to the first surface (11), and the area of ​​the second surface (101) is smaller than that of the first surface (11). When the first surface (11) is an inclined plane, the second surface (101) is a plane; Alternatively, if the first surface (11) is a plane, the second surface (101) is an inclined plane.

2. The valve plate for a transmission valve with a bolted inclined connection according to claim 1, characterized in that: The area of ​​the first face (11) is 1.5 to 3 times the area of ​​the second face (101).

3. The valve plate for a transmission valve with a bolted inclined connection according to claim 2, characterized in that: The second surface (101) is located in the middle of the first surface (11), and the width dimension A of the second surface (101) is smaller than the width dimension B of the first surface (11).

4. A valve plate for a transmission valve with a bolted oblique connection according to claim 1 or 3, characterized in that: When the first surface (11) is an inclined surface, the inclination angle C is 89.61°.

5. A valve plate for a transmission valve with a bolted oblique connection according to claim 1 or 3, characterized in that: When the second surface (101) is an inclined surface, the inclination angle D is 89.61°.

6. The valve plate for a bolted inclined connection of a transmission valve according to claim 5, characterized in that: The plate (10) has a rectangular shape.

7. The valve plate for a bolted inclined connection of a transmission valve according to claim 6, characterized in that: The plate (10) also has several grooves (10-1) and several pads (10-2). The pad (10-2) is disposed one-to-one in the groove (10-1) and connected to the plate (10). The pad (10-2) is placed between the plate (10) and the back plate (100) to adjust the gap between the plate (10) and the back plate (100).

8. The valve plate for a bolted inclined connection of a transmission valve according to claim 7, characterized in that: The number of grooves (10-1) is six, with three arranged in a horizontal row and the rows are arranged in parallel intervals. The number of pads (10-2) is six, arranged one-to-one in the groove (10-1), and connected to the plate (10) by a second bolt.

9. A valve plate for a transmission valve with an inclined bolt connection according to claim 8, characterized in that: The pad (10-2) has a rectangular block structure; When the third surface (10-21) on the pad (10-2) protrudes from the groove (10-1), the plate (10) and the back plate (100) are not in contact and have a gap, and the third surface (10-21) has a first state and a second state; In the first state, the third surface (10-21) is a plane, the second surface (101) is an inclined plane, and the third surface (10-21) is in contact with the second surface (101); In the second state, the third surface (10-21) is an inclined surface, the second surface (101) is a plane, and the third surface (10-21) is in contact with the second surface (101).

10. A valve plate for a transmission valve with a bolted inclined connection according to claim 9, characterized in that: When the third surface (10-21) is an inclined surface, the inclination angle E is 89.61°.

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