A flat valve structure with a baffle

Abstract

The application discloses a baffle type flat valve structure which comprises a valve body, a linear driving element and a baffle, the valve body is internally provided with a valve cavity, an air inlet is communicated to the valve cavity in a transverse direction, and an air outlet is communicated to the valve cavity from the lower side of the valve body, the linear driving element is connected to the upper side of the valve body, the baffle is located in the valve cavity, the linear driving element is provided with a push rod which extends to the valve cavity from top to bottom, the lower end of the push rod is provided with a boss, the upper side of the baffle is provided with a mounting seat, the mounting seat is provided with a mounting groove which is open upward, the boss of the push rod is inserted into the mounting groove, and an elastic gasket is arranged between the groove bottom of the mounting groove and the boss, the linear driving element drives the baffle to ascend and descend through the push rod, so that the baffle can be switched on and off to the air outlet. According to the above scheme, the elastic gasket is arranged between the groove bottom of the mounting groove and the boss, the reverse impact force applied by the baffle to the push rod can be effectively absorbed, and the reliability and sealing performance of the valve during long-term operation can be ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of valves, and more specifically to a baffle-type flat valve structure. Background Technology

[0002] Baffle valves, as a common type of gas or fluid control valve, are widely used in various industrial piping systems, especially in applications requiring rapid opening and closing or where space is limited. The basic principle of a baffle valve is that a linear actuator such as a cylinder drives a push rod to reciprocate, which in turn drives a baffle to move, thus opening or closing the valve orifice.

[0003] In existing technologies, the baffle and push rod of a baffle valve generally adopt a rigid connection structure. Specifically, the baffle is usually connected to the push rod by welding, bolting, or other methods. Although this rigid connection structure is simple and reliable, it also has certain defects in actual operation. For example, during the valve plate closing process, the rigidly connected baffle will directly impact the inner wall of the valve hole with a large force under the action of the push rod. The impact force will directly act on the connection between the baffle and the push rod. Under long-term operation, it is very easy to cause the connection between the baffle and the push rod to loosen or break, which seriously affects the reliability and sealing of the valve during long-term operation. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where, during the valve plate closing process, the rigidly connected baffle of the baffle valve, under the action of the push rod, directly impacts the inner wall of the valve hole with a large force. The impact force directly acts on the connection between the baffle and the push rod, which, under long-term operation, can easily lead to loosening or breakage of the connection between the baffle and the push rod, seriously affecting the reliability and sealing of the valve during long-term operation.

[0005] To address the aforementioned problems, this utility model provides a baffle-type flat valve structure, comprising a valve body, a linear actuator, and a baffle. The valve body has an internal valve cavity, an air inlet extending laterally into the valve cavity, and an air outlet extending from the lower side of the valve body into the valve cavity. The linear actuator is connected to the upper side of the valve body. The baffle is located within the valve cavity. The linear actuator has a push rod extending downwards into the valve cavity, with a boss at the lower end of the push rod. The upper side of the baffle has a mounting seat with an upward-opening mounting groove. The boss of the push rod is inserted into the mounting groove, and an elastic gasket is provided between the bottom of the mounting groove and the boss. The linear actuator drives the baffle to rise and fall via the push rod, thereby opening and closing the air outlet.

[0006] Compared with existing technologies, the above solution optimizes the connection structure between the push rod and the baffle. By setting a mounting seat with a mounting groove on the upper side of the baffle and a boss at the lower end of the push rod, the push rod and the baffle are connected by inserting the boss into the mounting groove. This not only increases the contact area between the two and improves the structural strength, but also further provides an elastic gasket between the bottom of the mounting groove and the boss. When the push rod moves the baffle downward to close the vent, the elastic gasket can play an elastic buffering role, effectively absorbing the reverse impact force exerted by the baffle on the push rod, thereby improving the overall service life of the valve and ensuring the reliability and sealing of the valve during long-term operation.

[0007] In an improved embodiment, the upper surface of the mounting base is provided with a detachable pressure block, which extends to the opening of the mounting groove to achieve abutment and limiting of the boss, thereby limiting and fixing the boss in the mounting groove through the pressure block.

[0008] In an improved embodiment, the pressure blocks are two in a semi-circular shape, with the two pressure blocks located on the left and right sides of the upper end face of the mounting base, respectively, thus forming a ring. The push rod is located between the inner ring sides of the two pressure blocks, so that the pressure blocks can abut against the upper side of the boss in the circumferential direction, achieving a more uniform limiting and fixing effect on the boss.

[0009] In an improved embodiment, the upper end face of the mounting base is provided with screw holes on the left and right sides, and the pressure block is provided with bolts screwed into the screw holes. The connection between the pressure block and the mounting base is achieved through the bolts and screw holes, which makes the connection stable and easy to disassemble and assemble.

[0010] In an improved embodiment, the lower side of the boss is a raised spherical surface, and the upper side of the elastic pad is a concave spherical surface. The lower side of the boss and the upper side of the elastic pad are in contact, thereby further increasing the contact area between the boss and the elastic pad and improving the elastic buffering effect of the elastic pad on the boss.

[0011] In an improved embodiment, the linear drive is a cylinder connected to the upper side of the valve body. The upper side of the valve body has a mounting hole extending into the valve cavity. The push rod is slidably inserted into the mounting hole, and the upper end of the push rod is connected to the cylinder output end. Attached Figure Description

[0012] Figure 1 A schematic cross-sectional view of a baffle-type flat valve structure; Figure 2 for Figure 1 A magnified view of a portion of region A in the middle.

[0013] Explanation of reference numerals in the attached figures. 1. Valve body; 11. Valve chamber; 12. Air inlet; 13. Air outlet; 14. Mounting hole; 2. Linear drive component; 21. Push rod; 22. Boss; 3. Baffle; 31. Mounting base; 32. Mounting groove; 33. Elastic gasket; 34. Screw hole; 4. Pressure block; 41. Bolt. Detailed Implementation

[0014] It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0015] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0016] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Please see Figure 1 and Figure 2The present invention provides a baffle-type flat valve structure, including a valve body 1, a linear drive 2, and a baffle 3. The valve body 1 has an internal valve cavity 11, an air inlet 12 that is laterally connected to the valve cavity 11, and an air outlet 13 that is connected from the lower side of the valve body 1 to the valve cavity 11. The linear drive 2 is connected to the upper side of the valve body 1. The baffle 3 is located inside the valve cavity 11. The linear drive 2 has a push rod 21 that extends from top to bottom to the valve cavity 11. The lower end of the push rod 21 has a boss 22. The upper side of the baffle 3 has a mounting seat 31. The mounting seat 31 has an upward-opening mounting groove 32. The boss 22 of the push rod 21 is inserted into the mounting groove 32, and an elastic gasket 33 is provided between the bottom of the mounting groove 32 and the boss 22. The linear drive 2 drives the baffle 3 to rise and fall through the push rod 21 to realize the opening and closing of the baffle 3 to the air outlet 13.

[0019] The above scheme optimizes the connection structure between the push rod 21 and the baffle 3. By setting a mounting seat 31 with a mounting groove 32 on the upper side of the baffle 3 and a boss 22 at the lower end of the push rod 21, the connection between the push rod 21 and the baffle 3 is achieved by inserting the boss 22 into the mounting groove 32. This not only increases the contact area between the two and improves the structural strength, but also further provides an elastic gasket 33 between the bottom of the mounting groove 32 and the boss 22. When the push rod 21 drives the baffle 3 to move downward to close the air outlet, the elastic gasket 33 can play an elastic buffering role, effectively absorbing the reverse impact force exerted by the baffle 3 on the push rod 21, thereby improving the overall service life of the valve and ensuring the reliability and sealing of the valve during long-term operation.

[0020] In this embodiment, the upper end face of the mounting base 31 is provided with a detachable pressure block 4. The pressure block 4 extends to the groove of the mounting groove 32 to achieve the abutment and limiting of the boss 22, thereby limiting and fixing the boss 22 in the mounting groove 32 through the pressure block 4.

[0021] As an improvement to the pressure block 4, there are two pressure blocks 4 in a semi-circular shape. The two pressure blocks 4 are located on the left and right sides of the upper end face of the mounting base 31, respectively, and thus they are joined together to form a ring. The push rod 21 is located between the inner ring sides of the two pressure blocks 4, so that the pressure blocks 4 can abut against the upper side of the boss 22 in the circumferential direction, thereby achieving a more uniform limiting and fixing effect on the boss 22.

[0022] In this embodiment, the upper surface of the mounting base 31 is provided with screw holes 34 on the left and right sides. The pressure block 4 is provided with bolts 41 that are screwed into the screw holes 34. The connection between the pressure block 4 and the mounting base 31 is achieved through the bolts 41 and the screw holes 34, which makes the connection stable and easy to assemble and disassemble. Of course, the detachable connection between the pressure block 4 and the mounting base 31 can also be achieved by snap-fit ​​or other methods, and this design does not limit this.

[0023] As an improvement to the boss 22, the lower side of the boss 22 is a raised spherical shape, and the upper side of the elastic pad 33 is a concave spherical shape. The lower side of the boss 22 and the upper side of the elastic pad 33 are in contact, thereby further increasing the contact area between the boss 22 and the elastic pad 33 and improving the elastic buffering effect of the elastic pad 33 on the boss 22.

[0024] In this embodiment, the linear drive 2 is a cylinder connected to the upper side of the valve body 1. The upper side of the valve body 1 is provided with a mounting hole 14 that extends to the valve cavity 11. The push rod 21 is slidably inserted into the mounting hole 14, and the upper end of the push rod 21 is connected to the cylinder output end. Of course, the linear drive 2 can also be an electric cylinder or other devices, and this design does not limit it.

[0025] It should be noted that in the description of this application, the terms "inner" and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. All directional indications (such as up, down, left, right, front, back, inner, and outer) are only used to explain the relative positional relationships and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0026] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0027] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A baffle-type flat valve structure, characterized in that, The device includes a valve body (1), a linear actuator (2), and a baffle (3). The valve body (1) has an internal valve cavity (11), an air inlet (12) that communicates laterally to the valve cavity (11), and an air outlet (13) that communicates from the lower side of the valve body (1) to the valve cavity (11). The linear actuator (2) is connected to the upper side of the valve body (1). The baffle (3) is located inside the valve cavity (11). The linear actuator (2) has a push rod (21) that extends from top to bottom into the valve cavity (11). (21) has a boss (22) at the lower end, and a mounting seat (31) is provided on the upper side of the baffle (3). The mounting seat (31) has an upward-opening mounting groove (32). The boss (22) of the push rod (21) is inserted into the mounting groove (32), and an elastic gasket (33) is provided between the bottom of the mounting groove (32) and the boss (22). The linear drive (2) drives the baffle (3) to rise and fall through the push rod (21) to realize the opening and closing of the baffle (3) to the air outlet (13).

2. The baffle-type flat valve structure according to claim 1, characterized in that, The upper surface of the mounting base (31) is provided with a detachable pressure block (4), which extends to the groove of the mounting groove (32) to achieve the abutment and limiting of the boss (22).

3. The baffle-type flat valve structure according to claim 2, characterized in that, The pressure block (4) consists of two semi-circular blocks, which are located on the left and right sides of the upper end face of the mounting base (31) respectively, thus forming a ring. The push rod (21) is located between the inner ring sides of the two pressure blocks (4).

4. The baffle-type flat valve structure according to claim 2, characterized in that, The mounting base (31) has screw holes (34) on the left and right sides of its upper end face, and the pressure block (4) has bolts (41) that are screwed into the screw holes (34).

5. The baffle-type flat valve structure according to any one of claims 1-4, characterized in that, The lower side of the boss (22) is a raised spherical shape, and the upper side of the elastic pad (33) is a concave spherical shape. The lower side of the boss (22) and the upper side of the elastic pad (33) are in contact.

6. The baffle-type flat valve structure according to claim 1, characterized in that, The linear drive (2) is a cylinder, which is connected to the upper side of the valve body (1). The upper side of the valve body (1) is provided with a mounting hole (14) that extends to the valve cavity (11). The push rod (21) is slidably inserted into the mounting hole (14) and the upper end of the push rod (21) is connected to the cylinder output end.

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