A rectangular valve with a two-way sealing function

Abstract

The present invention discloses a rectangular valve with a two-way sealing function, which includes a valve body and a valve core; a driving device is arranged above the valve body; the valve core includes a mounting frame, a sealing plate and a guiding cylinder; the inside of the guiding cylinder is a hollow structure, and a driving plate is slidably arranged in the guiding cylinder, and the upper end of the driving plate is fixedly connected with the driving device; a connecting rod is further arranged on the guiding cylinder, and the connecting rod is arranged inside the guiding cylinder; a ball is arranged at the end of the connecting rod, and the ball is used to push the sealing plate to move. In the present invention, by arranging the connecting rod and the ball inside the guiding cylinder, and arranging a driving plate inside the guiding cylinder to push the ball to move outwards, the sealing of the valve port by the sealing plate is completed. Through the device in the present invention, when the sealing plate is pushed, the fine dust generated due to friction can be locked inside the guiding cylinder, thereby avoiding affecting the cleanliness inside the valve.

Description

Technical Field

[0001] The present invention belongs to the technical field of valve sealing, and specifically relates to a rectangular valve with a two-way sealing function. Background Art

[0002] The vacuum gate valve uses an actuator to drive the lifting of the valve core assembly (composed of a driving frame, a push rod, and a sealing plate) to realize the opening and closing of the vacuum gate valve. The vacuum gate valve has the characteristics of large flow capacity, compact structure, small size, light weight, and thinness, and is widely used in high-tech fields such as electronics, chemical industry, metallurgy, nuclear industry, aviation, aerospace, materials, biomedicine, atomic energy, and space exploration.

[0003] The existing two-way gate valve is usually as follows: when the vacuum gate valve is closed, after the sealing plate moves to the sealing position, it stops moving, and the driving frame continues to move. The push rod connected between the sealing plate and the driving frame pushes the sealing plate away from the driving body as the driving frame moves, pressing it against the sealing surface of the valve body. When the push rod is horizontal, the pressing force reaches the maximum, and the vacuum gate valve is completely closed. When the vacuum gate valve is opened, the driving frame moves away from the sealing area. Under the action of the push rod, the sealing plate moves backward. After disengaging from the valve body sealing surface, it moves together with the driving body until the vacuum gate valve is completely opened.

[0004] For example, in the prior art, in the invention patent with the publication number "CN116255468A": "A gate valve", one end of the first support block is rotatably arranged in the groove of the first support frame, and the other end of the first support block is rotatably arranged in the groove of the valve plate. By the rotation of the first support block, the sealing plate is pushed to press against the opening of the valve to complete the sealing of the valve.

[0005] In the prior art, when the first support block is pushed to rotate, friction will inevitably occur, and the particles generated during the friction will affect the cleanliness in the valve. Summary of the Invention

[0006] The purpose of the present invention is to provide a rectangular valve with a two-way sealing function to solve the problem in the prior art in the background art that when the first support block is pushed to rotate, friction will inevitably occur, and the particles generated during the friction will affect the cleanliness in the valve.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A rectangular valve with a two-way sealing function includes a valve body and a valve core; wherein, valve ports are respectively arranged on both sides of the valve body, and the two sides of the valve body are communicated through the two valve ports; a driving device is arranged above the valve body, and the driving device is connected to the valve core to drive the valve core to move up and down inside the valve body;

[0009] The valve core includes a mounting frame, a sealing plate, and a guiding cylinder; the guiding cylinder is fixedly arranged on the mounting frame, the inside of the guiding cylinder is a hollow structure, a driving plate is slidably arranged inside the guiding cylinder, and the upper end of the driving plate is fixedly connected with a driving device; a connecting rod is also arranged on the guiding cylinder; the connecting rod extends from the inside of the guiding cylinder to the outside of the guiding cylinder, and the connecting rod is fixedly connected with the sealing plate; a ball is arranged at the end of the connecting rod, and the ball is used to cooperate with the driving plate to push the sealing plate to move;

[0010] There are two groups of connecting rods, the two groups of connecting rods are respectively arranged on both sides of the guiding cylinder, and the two groups of connecting rods are respectively connected with a sealing plate for sealing the two valve ports of the rectangular valve.

[0011] According to the above technical solution, an opening is arranged on the side wall of the guiding cylinder, and the opening is used for the connecting rod to pass through.

[0012] According to the above technical solution, an installation cylinder is also arranged outside the opening, the installation cylinder is arranged on the outer wall of the guiding cylinder and is fixedly connected with the guiding cylinder, and the connecting rod is arranged inside the guiding cylinder.

[0013] According to the above technical solution, a first sealing groove is also arranged at the end of the installation cylinder, and the first sealing groove is used for installing a sealing ring to seal the installation cylinder through the sealing ring.

[0014] According to the above technical solution, a sliding component is also arranged at the end of the mounting frame, and the sliding component is used for the up and down movement of the valve core.

[0015] According to the above technical solution, the sliding component includes a first pulley and a second pulley. Among them, the first pulley is used for the sliding of the left and right sides of the mounting frame, and the second pulley is used for the sliding of the front and back sides of the mounting frame.

[0016] According to the above technical solution, a spring piece is also arranged inside the guiding cylinder, the connecting rod passes through the spring piece, and the spring piece is used for limiting the ball and resetting the connecting rod.

[0017] According to the above technical solution, a limiting block is also arranged at the end of the driving plate, and the limiting block is used for limiting the driving plate.

[0018] According to the above technical solution, a second sealing groove is arranged on the sealing plate, and the sealing groove is used for installing a sealing ring.

[0019] According to the above technical solution, the driving device adopts a hydraulic cylinder or a pneumatic cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, by arranging the connecting rod and the ball inside the guiding cylinder, and arranging a driving plate inside the guiding cylinder to push the ball to move outwards, the sealing of the valve port by the sealing plate is completed.

[0022] With the device in the present invention, when the sealing plate is pushed, the fine dust generated due to friction can be locked inside the guiding cylinder, thus avoiding affecting the cleanliness inside the valve.

[0023] By sealing both sides of the valve, the sealing effect of the valve is effectively improved. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the valve of the present invention;

[0026] Figure 3 It is a schematic diagram of the closed structure of the valve of the present invention;

[0027] Figure 4 It is a schematic diagram of the overall opening of the present invention;

[0028] Figure 5 It is a schematic diagram of the mounting frame structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the partial structure at A of the present invention;

[0030] Figure 7 It is a schematic diagram of the ball groove structure of the present invention.

[0031] Reference numerals in the drawings: 100 - valve body, 200 - valve port, 300 - mounting frame, 400 - sealing plate, 500 - guiding cylinder, 600 - driving plate, 700 - connecting rod, 800 - ball, 900 - opening, 110 - mounting cylinder, 111 - first sealing groove, 112 - sealing ring, 113 - first pulley, 114 - second pulley, 115 - spring piece, 116 - limiting block, 117 - second sealing groove, 118 - sealing ring, 119 - driving device, 120 - first ball groove, 121 - second ball groove. Detailed Embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] As Figure 1As shown, a rectangular valve with a two-way sealing function includes a valve body 100 and a valve core. Among them, valve ports 200 are respectively arranged on both sides of the valve body 100, and both sides of the valve body 100 are communicated through the two valve ports 200. A driving device 119 is arranged above the valve body 100. The driving device 119 is connected to the valve core and drives the valve core to move up and down inside the valve body 100.

[0035] As Figure 2 , Figure 3 and Figure 4 shown, the valve core includes a mounting frame 300, a sealing plate 400 and a guide cylinder 500. The guide cylinder 500 is fixedly arranged on the mounting frame 300. The inside of the guide cylinder 500 is a hollow structure. A driving plate 600 is slidably arranged inside the guide cylinder 500. The upper end of the driving plate 600 is fixedly connected to the driving device 119. A connecting rod 700 is also arranged on the guide cylinder 500. The connecting rod 700 extends from the inside of the guide cylinder 500 to the outside of the guide cylinder 500. The connecting rod 700 is fixedly connected to the sealing plate 400. A ball 800 is arranged at the end of the connecting rod 700. The ball 800 is used to cooperate with the driving plate 600 to push the sealing plate 400 to move.

[0036] As Figure 3 and Figure 4 shown, there are two groups of connecting rods 700. The two groups of connecting rods 700 are respectively arranged on both sides of the guide cylinder 500. The two groups of connecting rods 700 are respectively connected with a sealing plate 400 for sealing the two valve ports 200 on both sides of the rectangular valve.

[0037] In the present invention, by arranging the connecting rod 700 and the ball 800 inside the guide cylinder 500, and by arranging a driving plate 600 inside the guide cylinder 500 to push the ball 800 to move outwards, the sealing of the valve port 200 by the sealing plate 400 is completed.

[0038] Through the device in the present invention, when the sealing plate 400 is pushed, the fine dust generated due to friction can be locked inside the guide cylinder 500, thereby avoiding affecting the cleanliness inside the valve.

[0039] By sealing both sides of the valve, the sealing effect of the valve is effectively improved.

[0040] Embodiment 2

[0041] This embodiment is a further refinement of Embodiment 1.

[0042] As Figure 6As shown, an opening 900 is provided on the side wall of the guide cylinder 500, and the opening 900 is used for the connecting rod 700 to pass through; an installation cylinder 110 is further provided outside the opening 900. The installation cylinder 110 is arranged on the outer wall of the guide cylinder 500 and is fixedly connected to the guide cylinder 500. The connecting rod 700 is arranged inside the guide cylinder 500; a first sealing groove 111 is further provided at the end of the installation cylinder 110, and the first sealing groove 111 is used for installing a sealing ring 112 to seal the installation cylinder 110 through the sealing ring 112.

[0043] By providing the installation cylinder 110 on the outer wall of the guide cylinder 500 and sealing the installation cylinder 110 through the provided sealing ring 112, it is possible to prevent the fine dust inside the guide cylinder 500 from leaking from the installation cylinder 110, further ensuring the cleanliness inside the valve.

[0044] As Figure 5 shown, a sliding assembly is further provided at the end of the mounting bracket 300, and the sliding assembly is used for the up and down movement of the valve core; the sliding assembly includes a first pulley 113 and a second pulley 114. Among them, the first pulley 113 is used for the sliding of the mounting bracket 300 on the left and right sides, and the second pulley 114 is used for the sliding of the mounting bracket 300 on the front and back sides.

[0045] Furthermore, there are two sets of both the first pulley 113 and the second pulley 114, and the two sets of pulleys are respectively arranged on the left and right sides of the mounting bracket 300.

[0046] By using the provided sliding assembly to limit the mounting bracket 300, the mounting bracket 300 has a fixed movement trajectory in both the longitudinal and transverse directions, preventing the mounting bracket 300 from deviating and resulting in unreliable sealing of the valve.

[0047] A spring piece 115 is further provided inside the guide cylinder 500. The connecting rod 700 passes through the spring piece 115. The spring piece 115 is used to limit the ball 800 and reset the connecting rod 700.

[0048] Furthermore, both ends of the spring piece 115 are fixedly connected to both ends of the guide cylinder 500, fixing the spring piece 115 inside the guide cylinder 500, and through the elastic force of the guide cylinder 500, the connecting rod 700 and the sealing plate 400 connected to the connecting rod 700 are reset.

[0049] Furthermore, the spring piece 115 is made of an elastic arc-shaped metal sheet, for example, spring steel.

[0050] A limit block 116 is further provided at the end of the drive plate 600, and the limit block 116 is used to limit the drive plate 600.

[0051] When the driving device 119 drives the driving plate 600 to move upward, the guide cylinder 500 and the driving plate 600 move upward together through the provided limit block 116, thereby completing the unsealing of the valve.

[0052] Furthermore, an upper cover is provided at the upper end of the guide cylinder 500, which is used to seal the guide cylinder 500. The drive plate 600 extends through the upper cover to the interior of the guide cylinder 500 and cooperates with the upper cover through the limit block 116, so that the guide cylinder 500 can move upward together with the drive plate 600.

[0053] A second sealing groove 117 is provided on the sealing plate 400 , and the sealing groove is used for installing a sealing ring 118 .

[0054] The second sealing ring 118 is used to seal the opening 900 of the valve, thereby improving the sealing effect of the valve.

[0055] The driving device 119 is a hydraulic cylinder or a pneumatic cylinder, preferably a pneumatic cylinder.

[0056] Furthermore, the guide tube 500 is sealed to prevent dust inside the guide tube 500 from leaking.

[0057] Furthermore, when the connecting rods 700 on both sides are kept in the reset state, (i.e. Figure 3 ), a certain distance (eg, 5 mm) is maintained between the connecting rods 700 on both sides, thereby facilitating the downward movement of the driving plate 600 and pushing the connecting rods 700 to move outward.

[0058] The working principle of the present invention is as follows: the use includes two processes:

[0059] When the valve is closed, the drive plate 600 is pushed downward by the drive device 119. As the lower end of the guide cylinder 500 first contacts the bottom of the valve body 100, the guide cylinder 500 stops moving. The connecting rod 700 and the sealing plate 400, mounted on the guide cylinder 500, remain relatively fixed, thus aligning the sealing plate 400 with the valve port 200. The drive device 119 then pushes the drive plate 600 downward, causing it to slide within the guide cylinder 500. The drive plate 600 then pushes the ball bearing 800, mounted on the end of the connecting rod 700, outward, which in turn pushes the sealing plate 400 outward, sealing the valve port 200.

[0060] When the connecting rod 700 moves outward, it pulls the spring piece 115 to move outward together, thereby causing the spring piece 115 to deform.

[0061] Valve opening process: During the valve opening process, the driving device 119 drives the driving plate 600 to move upward, and the driving plate 600 slides inside the guide cylinder 500 and contacts the upper end of the guide cylinder 500 through the set limit block 116, thereby driving the guide cylinder 500 to move upward, and driving the sealing plate 400 to move upward together, completing the opening of the valve.

[0062] Under the elastic force of the spring sheet 115 , the connecting rod 700 moves inward, thereby releasing the seal between the sealing plate 400 and the valve port 200 .

[0063] Embodiment 3

[0064] This embodiment is a further explanation of the first embodiment.

[0065] Further, such as Figure 7 As shown, a ball groove is provided in the middle of the driving plate 600, and the ball groove is provided along the height direction of the driving plate 600. The ball groove includes two sections, namely the first ball groove 120 and the second ball groove 121; wherein, the first ball groove 120 is provided at the lower end of the driving plate 600, and the second ball groove 121 is provided above the first ball groove 120, and the first ball groove 120 and the second ball groove 121 are connected.

[0066] Furthermore, the first ball groove 120 is tilted downward, while the second ball groove 121 is a through groove. This arrangement prevents the drive plate 600 from directly pushing the ball 800 away when it first contacts the ball 800, thereby preventing the connecting rod 700 and the sealing plate 400 from abruptly moving and causing excessive impact when the sealing plate 400 seals the valve port 200, thereby causing vibration to the valve body 100. By arranging the ball grooves in sections, the drive plate 600 can cooperate more smoothly with the ball 800, reducing vibration during the sealing of the valve body 100.

[0067] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0068] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rectangular valve with a double - direction sealing function, characterized in that: It includes a valve body (100) and a valve core; wherein, valve ports (200) are respectively arranged on both sides of the valve body (100), and both sides of the valve body (100) are communicated through the two valve ports (200); a driving device (119) is arranged above the valve body (100), the driving device (119) is connected to the valve core, and drives the valve core to move up and down inside the valve body (100); The valve core includes a mounting frame (300), a sealing plate (400) and a guide cylinder (500); the guide cylinder (500) is fixedly arranged on the mounting frame (300), the inside of the guide cylinder (500) is a hollow structure, a driving plate (600) is slidably arranged inside the guide cylinder (500), and the upper end of the driving plate (600) is fixedly connected to the driving device (119); a connecting rod (700) is also arranged on the guide cylinder (500); the connecting rod (700) extends from the inside of the guide cylinder (500) to the outside of the guide cylinder (500), and the connecting rod (700) is fixedly connected to the sealing plate (400); a ball (800) is arranged at the end of the connecting rod (700), and the ball (800) is used to cooperate with the driving plate (600) to push the sealing plate (400) to move; Two groups of connecting rods (700) are arranged, the two groups of connecting rods (700) are respectively arranged on both sides of the guide cylinder (500), and the two groups of connecting rods (700) are respectively connected to a sealing plate (400) for sealing the valve ports (200) on both sides of the rectangular valve; A spring piece (115) is also arranged inside the guide cylinder (500), the connecting rod (700) passes through the spring piece (115), and the spring piece (115) is used to limit the ball (800) and reset the connecting rod (700).

2. The rectangular valve with a two-way sealing function according to claim 1, wherein: An opening (900) is arranged on the side wall of the guide cylinder (500), and the opening (900) is used to pass through the connecting rod (700).

3. The rectangular valve with a two-way sealing function according to claim 2, wherein: An installation cylinder (110) is also arranged outside the opening (900), the installation cylinder (110) is arranged on the outer wall of the guide cylinder (500) and is fixedly connected to the guide cylinder (500), and the connecting rod (700) is arranged inside the installation cylinder (110).

4. The rectangular valve with a two-way sealing function according to claim 3, characterized in that: A first sealing groove (111) is also arranged at the end of the installation cylinder (110), and the first sealing groove (111) is used to install a sealing ring (112) to seal the installation cylinder (110).

5. A rectangular valve with a two-way sealing function according to claim 1, characterized in that: A sliding component is also arranged at the end of the mounting frame (300), and the sliding component is used for the up and down movement of the valve core.

6. The rectangular valve with a two-way sealing function according to claim 5, characterized in that: The sliding component includes a first pulley (113) and a second pulley (114), wherein, the first pulley (113) is used for the sliding of the mounting frame (300) on the left and right sides, and the second pulley (114) is used for the sliding of the mounting frame (300) on the front and back sides.

7. A rectangular valve with a two-way sealing function according to claim 1, characterized in that: A limiting block (116) is also arranged at the end of the driving plate (600), and the limiting block (116) is used to limit the driving plate (600).

8. A rectangular valve with a two-way sealing function according to claim 1, characterized in that: A second sealing groove (117) is arranged on the sealing plate (400), and the second sealing groove (117) is used to install a sealing ring (118).

9. A rectangular valve with a two-way sealing function according to claim 1, characterized in that: The driving device (119) adopts a hydraulic cylinder or a pneumatic cylinder.

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