Anti-blocking flat-bottom emptying valve

Abstract

The utility model discloses an anti-blocking flat-bottom emptying valve, which relates to the field of emptying valves, solves the problem that the existing emptying valve is easy to block a filter plate, and comprises a valve body and a support fixedly arranged at the top of the valve body, a connecting pipe is arranged on the outer side of the valve body, a gear box is fixedly arranged at the top of the support, and the gear box is fixedly arranged on the outer side of the valve body. A gear box is arranged in the valve body, a hand wheel is installed on the outer side of the gear box, a valve rod matched with the gear box is arranged on the inner side of the support, one end of the valve rod extends into the valve body, and a valve clack is arranged at the end, located in the valve body, of the valve rod; the discharging mechanism is used for enabling the valve body to discharge materials rapidly, the discharging mechanism is installed at the bottom of the valve body, the valve clack can move to the outer side of the valve body through the discharging mechanism, liquid in the storage tank can flow out rapidly, and therefore the effects of rapid discharging and blocking prevention are achieved.

Description

Technical Field

[0001] The utility model relates to the field of discharge valves, in particular to an anti-blocking flat-bottom discharge valve. Background Art

[0002] The discharge valve is an important component in the reactor structure. It is mainly used for bottom discharge of reactors, storage tanks and other containers. It is welded to the bottom of storage tanks and other containers through the bottom flange of the valve to eliminate the phenomenon that process media usually remains at the outlet of the container.

[0003] The discharge valve plays the role of controlling the closed pressurized reaction of the chemical liquid in the storage tank and correctly opening the discharge seat to discharge the liquid after the reaction is completed, without affecting the complete mixing and complete reaction of the liquid in the storage tank.

[0004] The discharge valve is in direct contact with the liquid. If there are large solid particles in the liquid, the valve port on the discharge valve will be blocked, affecting normal discharge. The existing anti-blocking discharge valve will set a filter plate in the valve to filter the solid particles, but the solid particles will accumulate on the filter plate, causing the filter plate to be blocked. After long-term use, the filter plate will still affect the cleaning of particle blockage. Utility Model Content

[0005] The utility model aims to provide an anti-blocking flat-bottom discharge valve, which can solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-blocking flat-bottom discharge valve, comprising a valve body, a connecting pipe is provided on the outer side of the valve body, and the connecting pipe is installed with a storage tank through a flange, and also comprises: a bracket fixedly installed on the top of the valve body, a gear box is fixedly installed on the top of the bracket, a hand wheel is installed on the outer side of the gear box for running the gear box, a valve stem matching the gear box is provided on the inner side of the bracket, and the gear box can make the valve stem move up and down, one end of the valve stem extends to the interior of the valve body, and a valve disc is provided at one end of the valve stem located inside the valve body, and the bottom of the valve body is sealed by the valve disc; a discharge mechanism is used to make the valve body discharge quickly, and the discharge mechanism is installed at the bottom of the valve body; a packing mechanism is used to lubricate and maintain the valve stem, and the packing mechanism is installed at the bottom of the bracket.

[0007] Preferably, the discharge mechanism includes a discharge seat fixedly mounted on the bottom of the valve body, a valve seat is arranged between the discharge seat and the valve body, the top of the discharge seat and the bottom of the valve body are provided with grooves for limiting and engaging the valve seat, so as to facilitate quick installation of the valve seat, the discharge seat and the valve seat are both annular in structure, and the inner diameter of the valve seat is the same as the inner diameter of the valve body, a sealing groove in contact with the bottom of the valve seat is provided on the outer side of the valve disc, so that when the valve disc moves downward, the sealing groove is separated from the valve seat, and quick discharge can be carried out, and an installation ring is fixedly connected to the end of the valve stem close to the valve disc, and the installation ring is fixedly installed on the top of the valve disc.

[0008] Preferably, the packing mechanism includes a packing cavity opened at the top of the valve body, the inner wall of the packing cavity is limited and slidably provided with a sealing cylinder, the length of the sealing cylinder is smaller than the length of the packing cavity, which is convenient for storing lubricating oil, the sealing cylinder is slidably sleeved on the outer side of the valve stem, and a fixing plate is fixedly installed on the top of the sealing cylinder, a convex strip is opened on the outer side of the fixing plate, the fixing plate is fixedly connected to the top of the valve body via the convex strip, and the fixing plate and the valve body are detachable structures, which is convenient for removing the sealing cylinder to inject the lubricating oil into the packing cavity.

[0009] Preferably, the top end of the valve stem is fixedly connected to a limiting block, and the top of the gear box is fixedly installed with a limiting cylinder for limiting the sliding of the limiting block, thereby improving the stability of the movement of the valve stem.

[0010] Preferably, the opening at the bottom of the discharge seat is an inclined structure to facilitate rapid discharge of materials.

[0011] Preferably, two vertically distributed sleeves are fixedly connected to the inner side of the bracket, and the valve stem slides through the sleeves to provide support and guidance for the movement of the valve stem.

[0012] Preferably, a guide cylinder is fixedly connected to the top inner wall of the valve body, and the guide cylinder is slidably sleeved on the outer side of the valve stem. The guide cylinder is located directly below the stuffing cavity to provide sealing for the bottom of the stuffing cavity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model enables the valve disc to move to the outside of the valve body through the discharge mechanism, so as to facilitate the rapid outflow of the liquid in the storage tank, and can adjust the moving distance of the valve stem and the valve disc according to the particle size in the liquid, so as to be suitable for discharging of different types of liquids, thereby achieving the effect of rapid discharging and anti-blocking.

[0015] 2. The utility model can inject lubricating oil into the outer side of the valve stem through the packing mechanism, and can apply the lubricating oil to the connection between the valve body and the valve stem as the valve stem moves, thereby improving the convenience of maintaining the valve stem and the valve body, thereby achieving the effect of improving the durability of the valve stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the material discharging mechanism in the utility model;

[0018] Figure 3 This is a schematic diagram of the valve disc and valve stem structure in the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the packing mechanism in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the middle sleeve plate and the limiting cylinder of the utility model.

[0021] In the figure: 1. valve body; 2. connecting pipe; 3. discharge mechanism; 301. discharge seat; 302. valve seat; 303. sealing groove; 304. mounting ring; 4. packing mechanism; 401. packing chamber; 402. sealing cylinder; 403. fixing plate; 5. bracket; 6. gear box; 7. hand wheel; 8. valve stem; 9. valve disc; 10. limit block; 11. limit cylinder; 12. sleeve plate; 13. guide cylinder. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1: Please refer to Figure 1-Figure 3The illustrated anti-blocking flat-bottom discharge valve comprises a valve body 1, a connecting pipe 2 is provided on the outside of the valve body 1, and the connecting pipe 2 is installed with the storage tank through a flange. The valve body 1 also comprises: a bracket 5 fixedly installed on the top of the valve body 1, a gear box 6 is fixedly installed on the top of the bracket 5, a hand wheel 7 is installed on the outside of the gear box 6 for running the gear box 6, a valve stem 8 matched with the gear box 6 is provided on the inside of the bracket 5, and the gear box 6 can make the valve stem 8 move up and down, one end of the valve stem 8 extends to the inside of the valve body 1, and a valve disc 9 is provided on the end of the valve stem 8 located inside the valve body 1, and the bottom of the valve body 1 is sealed by the valve disc 9; a discharge mechanism 3 is used to make the valve body 1 discharge quickly, and the discharge mechanism 3 is installed at the bottom of the valve body 1; a packing mechanism 4 is used to lubricate and maintain the valve stem 8, and the packing mechanism 4 is installed at the bottom of the bracket 5.

[0024] See also Figure 2 and Figure 3 The discharge mechanism 3 shown in the figure includes a discharge seat 301 fixedly mounted on the bottom of the valve body 1, a valve seat 302 is arranged between the discharge seat 301 and the valve body 1, and grooves for limiting and engaging the valve seat 302 are provided at the top of the discharge seat 301 and the bottom of the valve body 1, so as to facilitate the rapid installation of the valve seat 302. The discharge seat 301 and the valve seat 302 are both annular structures, and the inner diameter of the valve seat 302 is the same as the inner diameter of the valve body 1. A sealing groove 303 in contact with the bottom of the valve seat 302 is provided on the outer side of the valve disc 9, so that when the valve disc 9 moves downward, the sealing groove 303 is separated from the valve seat 302, so that rapid discharge can be carried out. A mounting ring 304 is fixedly connected to one end of the valve stem 8 close to the valve disc 9, and the mounting ring 304 is fixedly mounted on the top of the valve disc 9;

[0025] The user turns the hand wheel 7 to drive the gear box 6 to operate, so that the gear box 6 drives the valve stem 8 to move downward along the inner side of the valve body 1, and the valve stem 8 drives the valve disc 9 to move synchronously through the mounting ring 304, so that the sealing groove 303 on the valve disc 9 is away from the inside of the valve seat 302, and the valve body 1 and the discharge seat 301 are opened, so that the storage tank can be discharged quickly, thereby achieving the effect of fast discharge and anti-blocking.

[0026] See also Figure 4 and Figure 5 The packing mechanism 4 shown in the figure includes a packing cavity 401 opened at the top of the valve body 1, and a sealing cylinder 402 is limited and slidably provided on the inner wall of the packing cavity 401. The length of the sealing cylinder 402 is less than the length of the packing cavity 401, which is convenient for storing lubricating oil. The sealing cylinder 402 is slidably sleeved on the outer side of the valve stem 8, and a fixing plate 403 is fixedly installed on the top of the sealing cylinder 402. A convex strip is opened on the outer side of the fixing plate 403. The fixing plate 403 is fixedly connected to the top of the valve body 1 through the convex strip, and the fixing plate 403 and the valve body 1 are detachable structures, which is convenient for removing the sealing cylinder 402 to inject lubricating oil into the packing cavity 401;

[0027] The user can disassemble the bump on the fixing plate 403 and the top of the valve body 1, pull out the sealing cylinder 402 from the stuffing cavity 401 on the valve body 1, inject lubricating oil into the stuffing cavity 401, insert the sealing cylinder 402 into the stuffing cavity 401, and fix the fixing plate 403 on the valve body 1. As the valve stem 8 moves, the lubricating oil can be applied to the connection between the valve stem 8 and the valve body 1, thereby achieving the effect of facilitating maintenance and improving the durability of the valve stem 8.

[0028] Working principle: first, the user installs the connecting pipe 2 on the outside of the storage tank, and turns the hand wheel 7 to drive the gear box 6 to operate, so that the gear box 6 drives the valve stem 8 to move upward along the inner side of the valve body 1, and the valve stem 8 drives the valve flap 9 to move synchronously, so that the sealing groove 303 on the valve flap 9 is against the bottom of the valve seat 302 to seal the valve body 1. When discharging is required, the user turns the hand wheel 7 to make the sealing groove 303 on the valve flap 9 away from the inside of the valve seat 302, and opens the valve body 1 and the discharging seat 301, so that the storage tank can be quickly discharged, and the moving distance of the valve flap 9 can be adjusted according to the particle size in the liquid. It is suitable for a variety of storage tanks storing different liquids, thereby achieving the effect of facilitating quick discharging and preventing blocking.

[0029] Example 2: Please refer to Figure 2 and Figure 5 This embodiment further explains the first embodiment. The top of the valve stem 8 in the figure is fixedly connected to the limit block 10, and the top of the gear box 6 is fixedly installed with a limit cylinder 11 for the limit block 10 to limit the sliding, thereby improving the stability of the movement of the valve stem 8. The opening at the bottom of the discharge seat 301 is a slope structure, which is convenient for rapid discharge.

[0030] In this embodiment, when the valve stem 8 moves, it can drive the limit block 10 to move synchronously along the inner side of the limit cylinder 11 on the gear box 6, thereby providing a limit for the movement range of the valve stem 8, preventing the valve stem 8 from detaching from the gear box 6, thereby improving the safety of the use of the valve stem 8, and when the limit block 10 moves, it can improve the smoothness of the movement of the valve stem 8.

[0031] Example 3: Please refer to Figure 4 and Figure 5 This embodiment further illustrates other embodiments. The inner side of the bracket 5 shown in the figure is fixedly connected with two vertically distributed sleeves 12. The valve stem 8 slides through the sleeve 12 to provide support and guidance for the movement of the valve stem 8. The top inner wall of the valve body 1 is fixedly connected with a guide cylinder 13. The guide cylinder 13 is slidably sleeved on the outer side of the valve stem 8. The guide cylinder 13 is located directly below the stuffing chamber 401 to provide a seal for the bottom of the stuffing chamber 401.

[0032] In this embodiment: its purpose is that when the valve stem 8 moves, it can move along the outer side of the sleeve 12 and the guide cylinder 13 to improve the stability of the movement of the valve stem 8, and the guide cylinder 13 can provide a seal for the bottom of the stuffing chamber 401 to prevent the lubricating oil in the stuffing chamber 401 from flowing into the cavity of the valve body 1.

[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.

[0034] Although embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-blocking flat-bottom discharge valve, comprising a valve body (1), wherein a connecting pipe (2) is provided on the outer side of the valve body (1), characterized in that: Also includes: A bracket (5) is fixedly mounted on the top of the valve body (1), a gear box (6) is fixedly mounted on the top of the bracket (5), a hand wheel (7) is mounted on the outside of the gear box (6), a valve stem (8) matching with the gear box (6) is arranged on the inside of the bracket (5), one end of the valve stem (8) extends to the inside of the valve body (1), and a valve flap (9) is arranged on the end of the valve stem (8) located inside the valve body (1); A discharge mechanism (3) is used to discharge the valve body (1) quickly. The discharge mechanism (3) is installed at the bottom of the valve body (1). The discharge mechanism (3) comprises a discharge seat (301) fixedly installed at the bottom of the valve body (1). A valve seat (302) is arranged between the discharge seat (301) and the valve body (1). The top of the discharge seat (301) and the bottom of the valve body (1) are both provided with a limit clamping connection for the valve seat (302). The discharge seat (301) and the valve seat (302) are both annular structures, and the inner diameter of the valve seat (302) is the same as the inner diameter of the valve body (1). The outer side of the valve disc (9) is provided with a sealing groove (303) in contact with the bottom of the valve seat (302). The end of the valve stem (8) close to the valve disc (9) is fixedly connected with a mounting ring (304), and the mounting ring (304) is fixedly mounted on the top of the valve disc (9); A packing mechanism (4) is used for lubricating and maintaining the valve stem (8). The packing mechanism (4) is installed at the bottom of the bracket (5). The packing mechanism (4) includes a packing chamber (401) opened at the top of the valve body (1). The inner wall of the packing chamber (401) is provided with a sealing cylinder (402) for limited sliding. The length of the sealing cylinder (402) is less than the length of the packing chamber (401). The sealing cylinder (402) is slidably sleeved on the outer side of the valve stem (8). A fixing plate (403) is fixedly installed on the top of the sealing cylinder (402). A convex strip is opened on the outer side of the fixing plate (403). The fixing plate (403) is fixedly connected to the top of the valve body (1) through the convex strip, and the fixing plate (403) and the valve body (1) are detachable structures.

2. The anti-blocking flat bottom discharge valve according to claim 1, characterized in that: The top end of the valve stem (8) is fixedly connected to a limiting block (10), and the top of the gear box (6) is fixedly mounted with a limiting cylinder (11) for limiting the sliding of the limiting block (10).

3. The anti-blocking flat bottom discharge valve according to claim 1, characterized in that: The opening at the bottom of the material discharging seat (301) is an inclined surface structure.

4. The anti-blocking flat-bottom discharge valve according to claim 1, characterized in that: Two vertically distributed sleeves (12) are fixedly connected to the inner side of the bracket (5), and the valve stem (8) slides through the sleeves (12).

5. The anti-blocking flat-bottom discharge valve according to claim 1, characterized in that: A guide cylinder (13) is fixedly connected to the top inner wall of the valve body (1), and the guide cylinder (13) is slidably sleeved on the outer side of the valve stem (8). The guide cylinder (13) is located directly below the stuffing chamber (401).

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