Valve lifting and positioning device for electric gate valve

Abstract

The utility model relates to a valve lifting positioning device for an electric gate valve, which comprises a valve body, a support and a valve cover, the support is fixedly mounted above the valve body, the valve cover is mounted at the top of the valve body, a gate plate is movably mounted in the support, the bottom end of the gate plate penetrates through the valve cover, two groups of scraping plates are fixedly mounted at the top of the valve cover, and the scraping plates are fixedly mounted on the support. The material scraping plates are symmetrically installed on the two sides of the gate plate and attached to the outer wall of the gate plate, positioning assemblies are installed on the two sides of the support, each positioning assembly comprises two first limiting wheels and a second limiting wheel, the two first limiting wheels are arranged on the two sides of the gate plate in an attached mode respectively, the second limiting wheel is installed between the two first limiting wheels, and the first limiting wheels and the second limiting wheels are arranged on the two sides of the gate plate. The second limiting wheel is attached to the edge of the side edge of the flashboard, the two first limiting wheels clamp the flashboard, the second limiting wheel is attached to the edge of the flashboard, the descending direction of the flashboard is controlled, the flashboard cannot deviate in the descending process, the first spring on the side edge of the connecting block provides buffering when the flashboard descends, and the flashboard is prevented from shaking.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric gate valve technical field especially relates to a valve lifting positioning device for electric gate valve. BACKGROUND

[0002] The electric gate valve will meet the situation that the gate plate is stuck with the valve cover when descending, the gate plate descending speed is fast, and the gate plate appears damage, the service life and the airtightness of the gate valve are influenced, and the reasons of the stuck situation mainly have that the position is deviated when the gate plate descends and the impurities of the outer wall of the gate plate are not cleaned in time and thus embedded in the opening of the valve cover. SUMMARY

[0003] The utility model provides a valve lifting positioning device for electric gate valve to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A valve lifting positioning device for electric gate valve, comprising a valve body, a bracket and a valve cover, the bracket is fixedly installed above the valve body, the valve cover is installed on the top of the valve body, the inside of the bracket movably installs a gate plate, the bottom end of the gate plate passes through the valve cover, the top of the valve cover fixedly installs two groups of material scraping plates, the material scraping plates are symmetrically installed on both sides of the gate plate and are attached to the outer wall of the gate plate, the two sides of the bracket are provided with a positioning assembly, the positioning assembly comprises two limit wheels one and one limit wheel two, the two limit wheels one are respectively attached to both sides of the gate plate, the limit wheel two is installed between the two limit wheels one, and the limit wheel two is attached to the side edge of the gate plate.

[0006] Preferably, the positioning assembly further comprises a fixed rod, the end of the fixed rod is fixedly installed on the side edge outer wall of the bracket, the limit wheel two is installed on the fixed rod, the end of the limit wheel two is connected with the outer wall of the fixed rod through a bearing, the two sides of the limit wheel two are symmetrically provided with a connecting block, the connecting block is installed on the outer wall of the fixed rod, and the limit wheel one is installed on one side of the connecting block through a bearing. The side of the connecting block away from the limit wheel two is fixedly installed with a spring one, the spring one is installed on the outside of the fixed rod, and one end of the spring one is fixedly connected with the outer wall of the fixed rod.

[0007] Preferably, the top of the bracket is provided with a buffer assembly on both sides, the buffer assembly comprises a movable rod, two lifting rods and two springs two, the movable rod is arranged above the gate plate, two lifting rods are fixedly installed above the movable rod, two springs two are respectively installed outside the two lifting rods, one end of the spring two is fixedly connected with the outer wall of the movable rod, and the other end is fixedly connected with the inner wall of the top of the bracket.

[0008] The beneficial effects of the utility model are: through being provided with the positioning assembly, two limit wheels of the outer wall of the fixed rod hold the gate plate, limit wheel two is pasted to the edge of the gate plate, the descending direction of the gate plate is controlled, so that the gate plate does not appear to deviate when descending to the inside of the valve body, spring one of the side edge of the connecting block provides the buffer when the gate plate descends, prevents the gate plate from appearing to shake. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the overall structure schematic diagram of the utility model;

[0010] Figure 2 It is the A area local amplification structure schematic diagram in the utility model Figure 1 ;

[0011] Figure 3 It is the B area local amplification structure schematic diagram in the utility model Figure 1 ;

[0012] In the drawing: 1, bracket;2, valve cover;3, valve body;4, gate plate;5, scraping plate;6, fixed rod;7, limit wheel one;8, connecting block;9, limit wheel two;10, spring one;11, movable rod;12, lifting rod;13, spring two;14, limit plate. DETAILED DESCRIPTION

[0013] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. The direction terms mentioned in the utility model, such as "up", "down", "front", "back", "left", "right", "top" and "bottom", are only the direction of the attached drawings. Therefore, the direction terms used are used to explain and understand the utility model, not to limit the utility model.

[0014] As Figures 1-3The utility model provides an electric gate valve valve lifting positioning device, including the valve body 3, support 1 and valve cover 2, support 1 fixed mounting is at the top of valve body 3, valve cover 2 installs at the top of valve body 3, the inside movable mounting of support 1 has the gate 4, the bottom end of gate 4 passes through valve cover 2, the top of valve cover 2 is fixedly installed with two groups of material scraping plate 5, material scraping plate 5 is installed on the both sides of gate 4 symmetry and with the outer wall of gate 4 is in close contact, and the both sides of support 1 are installed with positioning assembly, and positioning assembly includes two limit wheels one 7 and a limit wheel two 9, two limit wheels one 7 are respectively in close arrangement on the both sides of gate 4, and limit wheel two 9 is installed between two limit wheels one 7, and limit wheel two 9 is in close contact with the side edge of gate 4.

[0015] Positioning assembly still includes fixed rod 6, and the end of fixed rod 6 is fixedly installed on the side edge outer wall of support 1, and limit wheel two 9 is installed on fixed rod 6, and the end of limit wheel two 9 is connected with the outer wall of fixed rod 6 through bearing, and the both sides of limit wheel two 9 are symmetrically provided with connecting block 8, and connecting block 8 is installed on the outer wall of fixed rod 6, and limit wheel one 7 is installed on the one side of connecting block 8 through bearing. The side, away from limit wheel two 9 of connecting block 8, is fixedly installed with spring one 10, and spring one 10 is installed on the outside of fixed rod 6, and one end of spring one 10 is fixedly connected with the outer wall of fixed rod 6.

[0016] The top of support 1 is provided with buffer assembly on both sides, and the buffer assembly includes movable rod 11, two lifting rods 12 and two springs two 13, the movable rod 11 is arranged above the gate 4, the two lifting rods 12 are fixedly installed above the movable rod 11, the two springs two 13 are respectively installed on the outside of the two lifting rods 12, one end of the spring two 13 is fixedly connected with the outer wall of the movable rod 11, and the other end is fixedly connected with the top end inner wall of the support 1. The top end of the two lifting rods 12 penetrates through the top outer wall of the support 1, and the top of the two lifting rods 12 is fixedly installed with a limiting plate 14.

[0017] Embodiment: the top of support 1 is provided with a cylinder, and the gate 4 is driven by the cylinder, when the gate 4 is lowered, the two limit wheels one 7 of the outer wall of fixed rod 6 hold the gate 4, and the limit wheel two 9 is in close contact with the edge of the gate 4, the descending direction of the gate 4 is controlled, so that the gate 4 does not deviate when descending to the inside of the valve body 3, the spring one 10 on the side of connecting block 8 provides buffer when the gate 4 is lowered, to prevent the gate 4 from shaking. When the gate 4 is lifted by the cylinder to open the valve body 3, the top of the gate 4 will contact the movable rod 11, the movable rod 11 lifts the lifting rod 12, the limiting plate 14 is separated from the top outer wall of the support 1, the spring two 13 is compressed and deformed, and the spring two 13 provides buffer when the gate 4 is lifted, so that the top of the gate 4 does not collide with the top end inner wall of the support 1, and the service life of the gate 4 is improved.

[0018] The gas or liquid passing through the inside of the valve body 3 can carry some impurities, and when the gate plate 4 passes through the valve cover 2, some impurities can be scraped by the edge of the valve cover 2, and some impurities can be carried out of the valve cover 2; too many impurities can affect the operation of the gate plate 4, so the scraping plate 5 is fixedly installed at the edge of the opening of the valve cover 2; during the descending process of the gate plate 4, the impurities on the outer wall can be scraped away by the scraping plate 5, thereby playing a role of cleaning the impurities on the outer wall of the gate plate 4.

[0019] It should be noted that the parts not involved in the present application are the same as or can be realized by the prior art; various drives in the present application can be realized by cooperating corresponding power structures such as air cylinders, oil cylinders, electric cylinders and motors with connecting rods and guide rods, and are not limited to the description in the specification and the structure in the drawings.

[0020] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A valve lifting and positioning device for an electric gate valve, comprising a valve body (3), a bracket (1) and a valve cover (2), wherein the bracket (1) is fixedly mounted above the valve body (3) and the valve cover (2) is mounted on the top of the valve body (3), and is characterized in that: A gate plate (4) is movably installed inside the bracket (1), and the bottom end of the gate plate (4) passes through the valve cover (2). Two groups of scrapers (5) are fixedly installed on the top of the valve cover (2). The scrapers (5) are symmetrically installed on both sides of the gate plate (4) and fit with the outer wall of the gate plate (4). Positioning components are installed on both sides of the bracket (1), and the positioning components include two limiting wheels (7) and one limiting wheel (9). The two limiting wheels (7) are respectively fitted on both sides of the gate plate (4), and the limiting wheel (9) is installed between the two limiting wheels (7). The limiting wheel (9) fits with the side edge of the gate plate (4).

2. The valve lifting and positioning device for an electric gate valve according to claim 1, characterized in that: The positioning assembly further comprises a fixing rod (6), the end of which is fixedly mounted on the side outer wall of the bracket (1), the second limiting wheel (9) is sleeved and mounted on the fixing rod (6), the end of which is connected to the outer wall of the fixing rod (6) via a bearing, and connecting blocks (8) are symmetrically provided on both sides of the second limiting wheel (9), the connecting blocks (8) are sleeved and mounted on the outer wall of the fixing rod (6), and the first limiting wheel (7) is mounted on one side of the connecting block (8) via a bearing.

3. The valve lifting and positioning device for an electric gate valve according to claim 2, characterized in that: A spring 1 (10) is fixedly installed on the side of the connecting block (8) away from the limiting wheel 2 (9), and the spring 1 (10) is sleeved and installed on the outside of the fixing rod (6), and one end of the spring 1 (10) is fixedly connected to the outer wall of the fixing rod (6).

4. The valve lifting and positioning device for an electric gate valve according to claim 1, characterized in that: Buffer assemblies are provided on both sides of the top of the bracket (1), and the buffer assemblies include a movable rod (11), two lifting rods (12) and two springs (13). The movable rod (11) is provided above the gate plate (4), and two lifting rods (12) are fixedly installed above the movable rod (11). The two springs (13) are respectively sleeved and installed on the outside of the two lifting rods (12). One end of the spring (13) is fixedly connected to the outer wall of the movable rod (11), and the other end is fixedly connected to the inner wall of the top end of the bracket (1).

5. The valve lifting and positioning device for an electric gate valve according to claim 4, characterized in that: The top ends of the two lifting rods (12) pass through the top outer wall of the bracket (1), and a limiting plate (14) is fixedly installed on the top ends of the two lifting rods (12).

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