Baffle valve easy to maintain

Abstract

The utility model discloses a baffle valve easy to maintain, which comprises an upper valve body, a lower valve body mounted at the bottom of the upper valve body, a rotating block rotationally connected to the top of the upper valve body through a bearing, a valve rod in threaded connection with the inner wall of the rotating block, a valve plate mounted at the bottom of the valve rod, and a mounting device, the valve rod is mounted in the upper valve body; the steering device is mounted on the outer wall of the rotating block; and the connecting device is mounted at the top of the valve plate. According to the baffle valve easy to maintain, impurities entering the baffle valve are reduced through the filter plate, the service life of sealing rubber at the bottom of the valve plate is prolonged, the upper valve body and the lower valve body can be rapidly fixed together through the installation device, in the installation mode, a plurality of bolts do not need to be rotated in sequence, and operation is convenient. And therefore, the baffle valve is easy to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a baffle valve which is easy to maintain. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Flap valves are also a type of valve.

[0003] When the current flapper valve is used, the valve is installed on both sides of the pipeline through bolts and flanges. The staff turns the handle to drive the valve stem to move up and down. After the valve stem drives the gate plate to move upward, the valve is no longer blocked. The medium inside the pipeline can flow into the flapper valve. After the valve stem drives the gate plate to move downward, the valve is blocked to prevent the medium from flowing into the flapper valve.

[0004] When using a traditional flapper valve, the sealing rubber at the bottom of the valve plate is pressed against the inside of the valve to achieve the valve seal. The sealing rubber will age after long-term use and needs to be replaced. The upper valve body is fixed to the lower valve body by multiple bolts. This fixing method requires turning multiple bolts in sequence to achieve the removal of the upper valve body, which makes it difficult to disassemble and maintain the flapper valve. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an easy-to-maintain flapper valve, which solves the problem that in the use of traditional flapper valves, the sealing rubber at the bottom of the valve plate is pressed against the inside of the valve to achieve the sealing of the valve. The sealing rubber will age after long-term use, and the sealing rubber at the bottom of the valve plate needs to be replaced. The upper valve body is fixed to the lower valve body by multiple bolts. This fixing method requires turning multiple bolts in sequence to achieve the disassembly of the upper valve body, which makes it difficult to disassemble and maintain the flapper valve.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an easy-to-maintain flapper valve, comprising an upper valve body, a lower valve body is installed at the bottom of the upper valve body, a rotating block is rotatably connected to the top of the upper valve body through a bearing, a valve stem is threadedly connected to the inner wall of the rotating block, and a valve plate is installed at the bottom of the valve stem, and the easy-to-maintain flapper valve also includes: a mounting device, which is installed inside the upper valve body; a steering device, which is installed on the outer wall of the rotating block; a connecting device is installed on the top of the valve plate; the mounting device includes: an inner cylinder, which is movably connected to the inner wall of the upper valve body; two inclined blocks are provided, both of which are tightly pressed against the bottom of the inner cylinder; two inclined plates are provided, which are respectively installed on the outer walls of the two inclined blocks and are connected to the inner wall of the upper valve body Active connection, the outer walls of the two inclined plates are slidably engaged with the inner wall of the lower valve body; two springs are provided, which are respectively installed on the outer walls of the two inclined plates and respectively pressed against the outer walls of the two inclined blocks, and one end of the two springs are pressed against the inner wall of the upper valve body; the rotating plate is slidably engaged with the outer wall of the inner cylinder and is threadedly connected to the outer wall of the upper valve body; wherein, the mounting device facilitates the installation of the upper valve body on the top of the lower valve body, the steering device can drive the valve stem to rotate in a narrow space, and the connecting device facilitates the removal of the valve plate from the valve stem, and rotating the rotating plate drives the inner cylinder to move downward, and the inner cylinder drives the inclined plate to slide on the inner wall of the lower valve body by squeezing the inclined block, and the inclined plate drives the lower valve body to move upward when sliding inside the lower valve body.

[0007] Preferably, a filter plate is installed on the inner wall of the lower valve body.

[0008] Preferably, the steering device includes: a handle, movably connected to the inner wall of the rotating block; a threaded rod, threadedly connected to the inner wall of the handle; a toothed plate, rotatably connected to one end of the threaded rod through a bearing, and slidingly engaged with the inner wall of the handle; a gear, meshing with the outer wall of the toothed plate, and fixedly connected to the outer wall of the rotating block; wherein, after the handle is adjusted to a suitable position, the threaded rod is rotated to drive the toothed plate to move, the toothed plate is meshed with the outer wall of the gear, and the handle is rotated to drive the rotating block to rotate via the gear.

[0009] Preferably, the connecting device includes: a bottom cylinder, movably connected to the bottom of the valve stem and installed above the valve plate; a bolt, threadedly connected to the inner wall of the bottom cylinder and threadedly connected to the inner wall of the valve stem; wherein, the bolt is twisted to remove the bottom cylinder from the bottom of the valve stem, thereby facilitating replacement of the valve plate at the bottom of the bottom cylinder.

[0010] Beneficial Effects

[0011] The utility model provides an easy-to-maintain flapper valve. It has the following beneficial effects: the easy-to-maintain flapper valve uses a filter plate to reduce the entry of impurities into the interior of the flapper valve, thereby extending the service life of the sealing rubber at the bottom of the valve plate, and the upper valve body and the lower valve body can be quickly fixed together through the installation device. This installation method does not require the sequential rotation of multiple bolts, and the installation is relatively convenient, so that the flapper valve is easy to disassemble and maintain;

[0012] The position of the handle is adjusted through the steering device. The handle can be reset after rotating a short distance and continue to drive the valve stem inside the rotating block to rotate in one direction, so that the baffle valve can be used in a narrow space. The valve plate is fixed to the bottom of the valve stem through the connecting device, which is convenient for replacing the aged valve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A cross-sectional view of

[0015] Figure 3 for Figure 2 Structural schematic diagram of the middle inner tube, inclined block and inclined plate;

[0016] Figure 4 for Figure 2 Schematic diagram of the structure of the middle handle, threaded rod and toothed plate.

[0017] In the figure: 1. upper valve body, 2. mounting device, 201. inner cylinder, 202. inclined block, 203. inclined plate, 204. spring, 205. rotating plate, 3. lower valve body, 4. steering device, 401. handle, 402. threaded rod, 403. tooth plate, 404. gear, 5. rotating block, 6. valve stem, 7. valve plate, 8. connecting device, 801. bottom cylinder, 802. bolt, 9. filter plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0020] During the use of the traditional flapper valve, the sealing rubber at the bottom of the valve plate is pressed against the inside of the valve to achieve the sealing of the valve. The sealing rubber will age after long-term use, and the sealing rubber at the bottom of the valve plate needs to be replaced. The upper valve body is fixed to the lower valve body by multiple bolts. This fixing method requires turning multiple bolts in sequence to achieve the disassembly of the upper valve body, which makes it difficult to disassemble and maintain the flapper valve.

[0021] In view of this, the utility model provides an easy-to-maintain flapper valve, which uses a filter plate to reduce the entry of impurities into the interior of the flapper valve, thereby extending the service life of the sealing rubber at the bottom of the valve plate, and the upper valve body and the lower valve body can be quickly fixed together through the installation device. This installation method does not require turning multiple bolts in sequence, and the installation is relatively convenient, so that the flapper valve is easy to disassemble and maintain.

[0022] Embodiment 1: By Figure 1 , 2 , 3 and 4 show that an easy-to-maintain flapper valve comprises an upper valve body 1, a lower valve body 3 is installed at the bottom of the upper valve body 1, a rotating block 5 is rotatably connected to the top of the upper valve body 1 through a bearing, a valve stem 6 is threadedly connected to the inner wall of the rotating block 5, and a valve plate 7 is installed at the bottom of the valve stem 6. The easy-to-maintain flapper valve also includes: a mounting device 2, which is mounted inside the upper valve body 1; a steering device 4, which is mounted on the outer wall of the rotating block 5; a connecting device 8 is mounted on the top of the valve plate 7; the mounting device 2 comprises: an inner cylinder 201, which is movably connected to the inner wall of the upper valve body 1; two inclined blocks 202 are provided, both of which are tightly pressed against the bottom of the inner cylinder 201; two inclined plates 203 are provided, which are respectively mounted on the outer walls of the two inclined blocks 202, and are movably connected to the inner wall of the upper valve body 1, and the outer walls of the two inclined plates 203 are both connected to the lower valve body 3 The inner wall of the upper valve body 1 is slidably engaged; two springs 204 are provided, which are respectively installed on the outer walls of the two inclined plates 203, and are respectively pressed against the outer walls of the two inclined blocks 202, and one end of the two springs 204 is pressed against the inner wall of the upper valve body 1; the rotating plate 205 is slidably engaged with the outer wall of the inner cylinder 201, and is threadedly connected with the outer wall of the upper valve body 1; wherein the mounting device 2 is convenient for mounting the upper valve body 1 on the top of the lower valve body 3, the steering device 4 can drive the valve stem 6 to rotate in a narrow space, and the connecting device 8 is convenient for removing the valve plate 7 from the valve stem 6, and the rotating plate 205 is rotated to drive the inner cylinder 201 to move downward, and the inner cylinder 201 drives the inclined plate 203 to slide on the inner wall of the lower valve body 3 by squeezing the inclined block 202, and the inclined plate 203 drives the lower valve body 3 to move upward when sliding inside the lower valve body 3;

[0023] In the specific implementation process, it is worth pointing out that the installation device 2 is convenient for installing the lower valve body 3 on the bottom of the upper valve body 1, the steering device 4 is convenient for the valve stem 6 to be used in a narrow space, and the connecting device is convenient for replacing the valve plate 7. When the valve stem 6 moves, the valve plate 7 is driven to move, and the valve plate 7 moves up and down to complete the opening and closing of the baffle valve. Sealing rubber pads are installed between the valve stem 6 and the upper valve body 1, and between the upper valve body 1 and the lower valve body 3. The rotating plate 205 is driven to rotate by means of a tool. The rotating plate 205 squeezes the inclined plate 203 on the inclined block 202 through the inner cylinder 201 to move outward, and the inclined plate 203 compresses the spring 204, and the inclined plate 203 slides inside the lower valve body 3.

[0024] Furthermore, a filter plate 9 is installed on the inner wall of the lower valve body 3;

[0025] In the specific implementation process, it is worth pointing out that the filter plate 9 filters the impurities in the medium, and the mesh number of the filter plate 9 is not specifically limited, as long as it meets the use requirements;

[0026] Specifically, when using the easy-to-maintain flapper valve, the upper valve body 1 and the lower valve body 3 form a flapper valve, and the upper valve body 1 and the lower valve body 3 are installed together using the installation device 2. The valve stem 6 drives the valve plate 7 to move up and down to control the opening or closing of the flapper valve. The steering device 4 allows the staff to rotate the valve stem in a narrow space. The connecting device facilitates the removal of the valve plate 7 for replacement. The staff drives the rotating plate 205 to rotate with the help of tools. The rotating plate 205 squeezes the inclined block 202 through the inner cylinder 201 to move, and the inclined block 202 compresses the spring 204. At the same time, the inclined block 202 drives the inclined plate 203 to move outward, and the inclined plate 203 slides inside the lower valve body 3, driving the lower valve body 3 to move upward, and the lower valve body 3 is fixed to the upper valve body 1.

[0027] Embodiment 2: By Figure 1 , 2 As can be seen from Figure 4, the steering device 4 includes: a handle 401, which is movably connected to the inner wall of the rotating block 5; a threaded rod 402, which is threadedly connected to the inner wall of the handle 401; a toothed plate 403, which is rotatably connected to one end of the threaded rod 402 through a bearing, and is slidably engaged with the inner wall of the handle 401; a gear 404, which is meshed with the outer wall of the toothed plate 403, and is fixedly connected to the outer wall of the rotating block 5; wherein, after the handle 401 is adjusted to a suitable position, the threaded rod 402 is rotated to drive the toothed plate 403 to move, the toothed plate 403 is meshed with the outer wall of the gear 404, and the handle 401 is rotated to drive the rotating block 5 to rotate through the gear 404;

[0028] In the specific implementation process, it is worth pointing out that after the handle 401 drives the rotating block 5 to rotate, the tooth plate 403 is driven to move by rotating the threaded rod 402, and the tooth plate 403 is no longer engaged with the gear 404, and the handle 401 can rotate freely in the rotating block 5;

[0029] Specifically, based on the above-mentioned embodiment 1, the staff uses the handle 401 to drive the rotating block 5 to rotate, and the rotating block 5 drives the valve stem 6 to move upward or downward. When the handle 401 cannot continue to rotate in a narrow space, the threaded rod 402 is twisted to drive the tooth plate 403 to no longer engage with the gear 404, and the handle 401 is turned back to the starting position. After the tooth plate 403 engages with the gear 404, it continues to drive the rotating block 5 to rotate, thereby controlling the opening and closing of the baffle valve in a narrow space.

[0030] Embodiment 3: By Figure 2 It can be seen that the connecting device 8 includes: a bottom cylinder 801, which is movably connected to the bottom of the valve stem 6 and installed above the valve plate 7; a bolt 802, which is threadedly connected to the inner wall of the bottom cylinder 801 and is threadedly connected to the inner wall of the valve stem 6; wherein, the bottom cylinder 801 is removed from the bottom of the valve stem 6 by twisting the bolt 802, so as to facilitate the replacement of the valve plate 7 at the bottom of the bottom cylinder 801;

[0031] In the specific implementation process, it is worth pointing out that the valve plate 7 at the bottom of the bottom cylinder 801 is installed on the valve stem 6 by twisting the bolt 802;

[0032] Specifically, on the basis of the above-mentioned first embodiment, the staff twists the bolt 802 to rotate, and installs the valve plate 7 below the bottom cylinder 801 on the valve stem 6 through the bolt 802.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easy-to-maintain flapper valve, comprising an upper valve body (1), characterized in that: The bottom of the upper valve body (1) is mounted with a lower valve body (3); the top of the upper valve body (1) is rotatably connected to a rotating block (5) via a bearing; the inner wall of the rotating block (5) is threadedly connected to a valve stem (6); the bottom of the valve stem (6) is mounted with a valve plate (7); the easy-to-maintain flapper valve further comprises: A mounting device (2) mounted inside the upper valve body (1); A steering device (4) mounted on the outer wall of the rotating block (5); The connecting device (8) is installed on the top of the valve plate (7); The installation device (2) comprises: An inner cylinder (201) movably connected to the inner wall of the upper valve body (1); Two inclined blocks (202) are provided, both of which are tightly pressed against the bottom of the inner cylinder (201); Two inclined plates (203) are provided, which are respectively mounted on the outer walls of the two inclined blocks (202) and are movably connected to the inner wall of the upper valve body (1); the outer walls of the two inclined plates (203) are both slidably engaged with the inner wall of the lower valve body (3); Two springs (204) are provided, respectively mounted on the outer walls of the two inclined plates (203) and respectively pressed against the outer walls of the two inclined blocks (202), and one end of the two springs (204) is pressed against the inner wall of the upper valve body (1); A rotating plate (205) is slidably engaged with the outer wall of the inner cylinder (201) and is threadedly connected to the outer wall of the upper valve body (1); The mounting device (2) facilitates mounting the upper valve body (1) on the top of the lower valve body (3); the steering device (4) can drive the valve stem (6) to rotate in a narrow space; the connecting device (8) facilitates removing the valve plate (7) from the valve stem (6); rotating the rotating plate (205) drives the inner cylinder (201) to move downward; the inner cylinder (201) drives the inclined plate (203) to slide on the inner wall of the lower valve body (3) by squeezing the inclined block (202); and the inclined plate (203) drives the lower valve body (3) to move upward when sliding inside the lower valve body (3).

2. The easy-to-maintain flapper valve according to claim 1, characterized in that: A filter plate (9) is installed on the inner wall of the lower valve body (3).

3. The easy-to-maintain flapper valve according to claim 1, characterized in that: The steering device (4) comprises: A handle (401) movably connected to the inner wall of the rotating block (5); A threaded rod (402) threadably connected to the inner wall of the handle (401); A toothed plate (403) is rotatably connected to one end of the threaded rod (402) via a bearing and is slidably engaged with the inner wall of the handle (401); A gear (404) meshed with the outer wall of the gear plate (403) and fixedly connected to the outer wall of the rotating block (5); After the handle (401) is adjusted to a suitable position, the threaded rod (402) is rotated to drive the toothed plate (403) to move, the toothed plate (403) is meshed with the outer wall of the gear (404), and the handle (401) is rotated to drive the rotating block (5) to rotate via the gear (404).

4. The easy-to-maintain flapper valve according to claim 1, characterized in that: The connecting device (8) comprises: A bottom cylinder (801) movably connected to the bottom of the valve stem (6) and installed above the valve plate (7); A bolt (802) is threadedly connected to the inner wall of the bottom cylinder (801) and is threadedly connected to the inner wall of the valve stem (6); The bottom cylinder (801) is removed from the bottom of the valve stem (6) by twisting the bolt (802), thereby facilitating replacement of the valve plate (7) at the bottom of the bottom cylinder (801).

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