A mine negative pressure automatic water discharge device with anti-backflow function

Abstract

This invention relates to the field of negative pressure automatic water discharge device technology, and discloses a mine negative pressure automatic water discharge device with anti-backflow function. The device includes a negative pressure automatic water discharge device, an upper cylinder cover fixedly installed at the upper end, an inlet pipe fixedly installed on one side of the device, and an outlet pipe fixedly installed at the lower end. Both the inlet and outlet pipes are equipped with sealing components, and each sealing component has a scraper assembly. Each sealing component includes a fixing ring fixedly installed on the outer side of the inlet pipe near one edge, and a magnetic ring fixedly installed at one end of the fixing ring. This mine negative pressure automatic water discharge device with anti-backflow function, through overall cooperation, allows the scraper strip to remove impurities from the contact surface between the sealing ring and the sealing film during the process of the collar closing on one side of the sealing ring, thus improving sealing reliability.

Description

Technical Field

[0001] This invention relates to the field of negative pressure automatic water discharge device technology, and in particular to a mine negative pressure automatic water discharge device with anti-backflow function. Background Technology

[0002] Current mine negative pressure automatic water dischargers generally suffer from insufficient backflow prevention reliability in their inlet and outlet valve cover structures. The inlet valve cover is easily affected by negative pressure when the cylinder discharges water and returns to normal pressure, causing air or water in the cylinder to backflow into the negative pressure pipeline, disrupting the system's negative pressure stability and even posing a risk of gas leakage. The outlet valve cover is prone to blockage by coal slurry impurities in underground sewage, and micro-leakage is likely to occur at the sealing surface, allowing external air to continuously backflow into the cylinder, preventing the establishment of negative pressure inside the cylinder, and causing the equipment's water intake and storage function to fail. Alternatively, the single rigid check structure has insufficient sealing compensation capacity, making it difficult to simultaneously ensure flow efficiency and long-term backflow prevention reliability. Moreover, most structures do not have differentiated designs for the different operating conditions and risks of the inlet and outlet valve covers, lacking targeted backflow prevention redundancy protection and self-cleaning measures. They cannot adapt to the harsh operating conditions of high impurities and high negative pressure fluctuations underground, affecting the overall operational stability and service life of the equipment. Summary of the Invention

[0003] The main objective of this invention is to provide a mine negative pressure automatic water discharge device with anti-backflow function, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A mine negative pressure automatic water discharger with anti-backflow function includes a negative pressure automatic water discharger. An upper cylinder cover is fixedly installed on the upper end of the negative pressure automatic water discharger. An inlet pipe is fixedly installed on one side of the negative pressure automatic water discharger, and an outlet pipe is fixedly installed on the lower end of the negative pressure automatic water discharger. Both the inlet and outlet pipes are equipped with sealing components. Each sealing component has a scraper component. Each sealing component includes a fixing ring fixedly installed on the outer side of the inlet pipe near one edge. A magnetic ring is fixedly installed at one end of the fixing ring, and a sealing ring is fixedly installed at one end of the magnetic ring. Two sets of fixing blocks are fixedly installed on the upper side of the fixing ring. A movable rod is movably installed inside the two sets of fixing blocks. Two sets of connecting blocks are fixedly installed below the movable rod. A connecting ring is fixedly installed at one end of each set of connecting blocks. A collar is fixedly installed on the outer side of the connecting ring, and a sealing film is installed inside the collar.

[0005] Preferably, a magnetic ring sleeve is wrapped inside the sealing film, and an annular groove is formed inside the sleeve corresponding to the position of the magnetic ring sleeve. An inner annular groove is formed inside the magnetic ring sleeve. A first sheet spring is provided between the inner annular groove and the inner wall of the annular groove. A concave annular groove is formed on the inner wall of the annular groove, and the inner ring of the sealing film is corrugated at the position of the concave annular groove.

[0006] Preferably, the scraper assembly includes a fixed disk fixedly disposed at one end of the connecting ring. The fixed disk has four sets of square grooves on its inner side. Sliding strips are slidably disposed on the inner side of each of the four sets of square grooves. An arc-shaped strip is fixedly disposed at one end of each of the four sets of sliding strips. Scraping strips are fixedly disposed at both ends of each of the four sets of arc-shaped strips near their edges. A first connecting shaft is fixedly disposed at the opposite end of each of the four sets of sliding strips. An H-shaped component is movably disposed on each of the four sets of first connecting shafts. A second connecting shaft is movably disposed on the corresponding side of each of the four sets of H-shaped components. A connecting piece is fixedly disposed between the four sets of second connecting shafts. A movable shaft is fixedly disposed on the inner side of the connecting piece. A circular groove is formed on the inner side of the H-shaped component. A fixed sleeve is fixedly disposed at the center of the H-shaped component. A second plate spring is disposed between the movable shaft inside the fixed sleeve and the inner wall of the fixed sleeve. A limit plate is fixedly disposed on the inner side of the water inlet pipe near its edge.

[0007] Preferably, the inlet pipe and outlet pipe are connected to the interior of the negative pressure automatic water dispenser, and the movable rod rotates along the fixed block to satisfy the requirement that the collar covers one end of the inlet pipe.

[0008] Preferably, the connecting ring and the collar are fixedly connected by bolts, and the sealing film is positioned corresponding to the sealing ring.

[0009] Preferably, the magnetic ring sleeve is magnetically compatible with the magnetic sheet ring, the magnetic ring sleeve is inserted into the inner side of the annular groove, the first sheet spring is in a compressed state, and the corrugated part is adapted to the size of the concave annular groove.

[0010] Preferably, the fixed plate and the connecting ring are fixedly connected by bolts, two of the four sets of arc-shaped strips are staggered, the scraper strip is inclined, the H-shaped part is adapted to the square groove, and the H-shaped part is located inside the circular groove.

[0011] Preferably, the movable shaft rotates to the position of the limiting piece, the movable shaft moves through the inside of the fixed plate, and the fixed sleeve partially passes through one side of the connecting ring.

[0012] Compared with the prior art, the present invention has the following beneficial effects: During the operation of the negative pressure automatic water drainer, the collar and movable rod rotate along the fixed block to open or close. When the collar and connecting ring fall, they drive the collar and sealing film to cover one end of the sealing ring, thus preventing backflow in the water inlet pipe. Through the magnetic adsorption between the magnetic ring and the magnetic ring sleeve, the sealing ring and sealing film can be efficiently bonded after the scraper component has finished cleaning.

[0013] The first spring, relying on its own elastic properties, drives the magnetic ring sleeve and the sealing film to extend and retract, effectively absorbing impact energy to achieve shock absorption and reduce impact damage to the sealing film. Meanwhile, the corrugated structure of the corrugated part can provide elastic compensation during the extension and retraction of the sealing film, ensuring that the sealing surface always remains in contact.

[0014] When the collar falls, the movable shaft impacts the limiting plate and retracts towards the inside of the fixed plate. Simultaneously, the movable shaft drives the four sets of second connecting shafts to move and compresses the second plate springs to retract towards the inside of the fixed sleeve. The four moving sets of second connecting shafts pull the surrounding H-shaped parts to tilt and move towards the center, thereby pulling the four sets of sliding strips and four sets of arc strips along the four sets of square grooves towards the center. This causes the scraping strips on the four sets of arc strips to move synchronously. During the process of the collar closing on one side of the sealing ring, the scraping strips can thoroughly scrape away impurities on the contact surface between the sealing ring and the sealing film, making them clean and adhered, greatly improving the sealing reliability. When the collar opens, the four sets of scraping strips are pushed away and returned to their initial state under the elastic reset push of the second plate spring, preparing for the next cleaning and scraping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a mine negative pressure automatic water discharge device with anti-backflow function according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a mine negative pressure automatic water discharger with anti-backflow function according to the present invention. Figure 3 This is a schematic diagram of the sealing component and scraper component of a mine negative pressure automatic water discharger with anti-backflow function according to the present invention; Figure 4 This is a schematic diagram of a partial cross-sectional view of the collar structure of a mine negative pressure automatic water discharge device with anti-backflow function according to the present invention; Figure 5 This is a schematic diagram of the inner side structure of a collar of a mine negative pressure automatic water discharge device with anti-backflow function according to the present invention; Figure 6 This is a schematic diagram of the scraper component structure of a mine negative pressure automatic water discharger with anti-backflow function according to the present invention; Figure 7 This invention relates to a mine negative pressure automatic water discharge device with anti-backflow function. Figure 6 A magnified structural diagram of part A; Figure 8 This invention relates to a mine negative pressure automatic water discharge device with anti-backflow function. Figure 6 A magnified structural diagram of part B.

[0016] In the diagram: 1. Negative pressure automatic water dispenser; 2. Upper cylinder cover; 3. Inlet pipe; 4. Outlet pipe; 5. Sealing assembly; 51. Fixing ring; 52. Magnetic ring; 53. Sealing ring piece; 54. Fixing block; 55. Movable rod; 56. Connecting block; 57. Connecting ring; 58. Collar ring; 59. Sealing film; 510. Magnetic ring sleeve; 511. Annular groove; 512. Inner annular groove; 513. First plate spring; 514. Concave annular groove; 515. Corrugated part; 6. Scraper assembly; 61. Fixing disc; 62. Square groove; 63. Sliding strip; 64. Arc strip; 65. Scraper strip; 66. First connecting shaft; 67. H-shaped part; 68. Second connecting shaft; 69. Connecting piece; 610. Movable shaft; 611. Circular groove; 612. Fixing sleeve; 613. Second plate spring; 614. Limiting piece. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship as a relative relationship of orientation or position, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0019] Please see Figures 1-8 One embodiment of the present invention provides a mine negative pressure automatic water discharger with anti-backflow function, comprising a negative pressure automatic water discharger 1, an upper cylinder cover 2 fixedly installed on the upper end of the negative pressure automatic water discharger 1, an inlet pipe 3 fixedly installed on one side of the negative pressure automatic water discharger 1, and an outlet pipe 4 fixedly installed at the lower end of the negative pressure automatic water discharger 1. Both the inlet pipe 3 and the outlet pipe 4 are provided with sealing components 5, and both sets of sealing components 5 are provided with scraper components 6. The sealing components 5 include components fixedly installed on the outside of the inlet pipe 3 near... A fixing ring 51 is located at one edge. A magnetic ring 52 is fixedly installed at one end of the fixing ring 51. A sealing ring 53 is fixedly installed at one end of the magnetic ring 52. Two sets of fixing blocks 54 are fixedly installed on the upper side of the fixing ring 51. A movable rod 55 is movably installed inside the two sets of fixing blocks 54. Two sets of connecting blocks 56 are fixedly installed below the movable rod 55. A connecting ring 57 is fixedly installed at one end of the two sets of connecting blocks 56. A collar 58 is fixedly installed on the outer side of the connecting ring 57. A sealing film 59 is installed inside the collar 58.

[0020] The inlet pipe 3 and outlet pipe 4 are connected to the inside of the negative pressure automatic water dispenser 1. The movable rod 55 rotates along the fixed block 54 to satisfy the collar 58 covering one end of the inlet pipe 3. The connecting ring 57 and the collar 58 are fixedly connected by bolts. The sealing film 59 is in the corresponding position to the sealing ring 53.

[0021] During the operation of the negative pressure automatic water drainer 1, the collar 58 and the movable rod 55 rotate along the fixed block 54 to open or close. When the collar 58 and the connecting ring 57 fall, they drive the collar 58 and the sealing film 59 to cover one end of the sealing ring 53, thereby preventing backflow in the water inlet pipe 3. Through the magnetic adsorption of the magnetic ring 52 and the magnetic ring sleeve 510, the sealing ring 53 and the sealing film 59 can achieve efficient adhesion after the scraper assembly 6 has finished cleaning.

[0022] A magnetic ring sleeve 510 is wrapped inside the sealing film 59. An annular groove 511 is formed inside the sleeve 58 corresponding to the position of the magnetic ring sleeve 510. An inner annular groove 512 is formed inside the magnetic ring sleeve 510. A first sheet spring 513 is provided between the inner annular groove 512 and the inner wall of the annular groove 511. A concave annular groove 514 is formed on the inner wall of the annular groove 511. The inner ring of the sealing film 59 is corrugated 515 corresponding to the position of the concave annular groove 514.

[0023] The magnetic ring sleeve 510 and the magnetic sheet ring 52 are magnetically compatible. The magnetic ring sleeve 510 is inserted into the inner side of the annular groove 511. The first sheet spring 513 is in a compressed state. The corrugated part 515 is adapted to the size of the concave annular groove 514.

[0024] The first spring 513, relying on its own elastic properties, drives the magnetic ring sleeve 510 and the sealing film 59 to extend and retract, effectively absorbing impact energy to achieve shock absorption and reduce impact damage to the sealing film 59. Meanwhile, the corrugated structure of the corrugated part 515 can provide elastic compensation during the extension and retraction of the sealing film 59, ensuring that the sealing surface always remains in contact.

[0025] The scraping assembly 6 includes a fixed disk 61 fixedly mounted at one end of the connecting ring 57. Four sets of square grooves 62 are formed on the inner side of the fixed disk 61. Sliding strips 63 are slidably mounted on the inner side of each of the four sets of square grooves 62. An arc-shaped strip 64 is fixedly mounted at one end of each of the four sets of sliding strips 63. Scraping strips 65 are fixedly mounted near the edges at both ends of each of the four sets of arc-shaped strips 64. A first connecting shaft 66 is fixedly mounted at the opposite end of each of the four sets of sliding strips 63. H-shaped components 67 are movably mounted on each of the four sets of first connecting shafts 66. Each of the corresponding sides of the H-shaped part 67 is provided with a second connecting shaft 68. A connecting piece 69 is fixedly provided between the four sets of second connecting shafts 68. A movable shaft 610 is fixedly provided on the inner side of the connecting piece 69. A circular groove 611 is opened on the inner side of the H-shaped part 67. A fixed sleeve 612 is fixedly provided at the center of the H-shaped part 67. A second plate spring 613 is provided between the movable shaft 610 on the inner side of the fixed sleeve 612 and the inner wall of the fixed sleeve 612. A limit piece 614 is fixedly provided on the inner side of the water inlet pipe 3 near the edge.

[0026] The fixed plate 61 and the connecting ring 57 are fixedly connected by bolts. Two of the four sets of arc-shaped strips 64 are staggered. The scraper strip 65 is inclined. The H-shaped part 67 is adapted to the square groove 62. The H-shaped part 67 is located inside the circular groove 611. The movable shaft 610 rotates to correspond to the position of the limiting piece 614. The movable shaft 610 moves through the inside of the fixed plate 61. The fixed sleeve 612 partially passes through one side of the connecting ring 57.

[0027] When the collar 58 falls, the movable shaft 610 impacts the limiting piece 614 and retracts towards the inside of the fixed plate 61. Simultaneously, the movable shaft 610 drives the four sets of second connecting shafts 68 to move and compresses the second plate spring 613 to retract towards the inside of the fixed sleeve 612. The moving four sets of second connecting shafts 68 pull the surrounding H-shaped parts 67 to tilt and move towards the center, thereby pulling the four sets of sliding strips 63 and the four sets of arc strips 64 along the four sets of square grooves 62 towards the center. This causes the scraping strips 65 on the four sets of arc strips 64 to move synchronously. During the process of the collar 58 covering one side of the sealing ring 53, the scraping strips 65 can thoroughly scrape away the impurities on the contact surface between the sealing ring 53 and the sealing film 59, making the two clean and adhered, greatly improving the sealing reliability. When the collar 58 opens, under the elastic reset push of the second plate spring 613, the four sets of scraping strips 65 are pushed away and returned to their initial state, preparing for the next cleaning and scraping.

[0028] Working principle: During use, the negative pressure automatic water drainer 1 rotates along the fixed block 54 to open or close the collar 58 and the movable rod 55. When the collar 58 and the connecting ring 57 fall, they cause the collar 58 and the sealing film 59 to cover one end of the sealing ring 53, thus preventing backflow in the water inlet pipe 3. Through the magnetic attraction between the magnetic ring 52 and the magnetic ring sleeve 510, the sealing ring 53 and the sealing film 59 can achieve efficient adhesion after the scraper assembly 6 has finished cleaning. At the same time, the first plate spring 513, relying on its own elastic properties, pushes the magnetic ring sleeve 510 and the sealing film. The expansion and contraction of the sealing sheet 59 effectively absorbs impact energy to achieve shock absorption and reduce impact damage to the sealing sheet 59. The corrugated structure of the corrugated part 515 provides elastic compensation during the expansion and contraction of the sealing sheet 59, ensuring that the sealing surface always remains in contact. Secondly, when the collar 58 falls, the movable shaft 610 impacts the limiting piece 614 and retracts towards the inside of the fixed plate 61. The movable shaft 610 simultaneously drives the four sets of second connecting shafts 68 to move and compresses the second plate spring 613 to retract towards the inside of the fixed sleeve 612. The four sets of moving second connecting shafts 68 pull the surrounding H-shaped... The molded part 67 tilts and moves towards the center, thereby pulling the four sets of sliding strips 63 and the four sets of arc strips 64 along the four sets of square grooves 62 towards the center. This causes the scraping strips 65 on the four sets of arc strips 64 to move synchronously. As the collar 58 closes on one side of the sealing ring 53, the scraping strips 65 can thoroughly scrape away the impurities on the contact surface between the sealing ring 53 and the sealing film 59, making the two clean and fit together, greatly improving the sealing reliability. When the collar 58 opens, under the elastic reset push of the second body spring 613, the four sets of scraping strips 65 are pushed open and returned to their initial state, preparing for the next cleaning and scraping.

[0029] The internal structure and electrical connection or control method of the negative pressure automatic water discharger 1 in this invention are common knowledge in the field. Its working principle is already a well-known technology, and the appropriate model is selected according to actual use, so it will not be explained in detail.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mine negative pressure automatic water discharge device with anti-backflow function, comprising a negative pressure automatic water discharge device (1), characterized in that: The upper end of the negative pressure automatic water discharge device (1) is fixedly equipped with an upper cylinder cover (2), an inlet pipe (3) is fixedly installed on one side of the negative pressure automatic water discharge device (1), and an outlet pipe (4) is fixedly installed at the lower end of the negative pressure automatic water discharge device (1). Both the inlet pipe (3) and the outlet pipe (4) are equipped with sealing components (5), and both sets of sealing components (5) are equipped with scraper components (6). The sealing component (5) includes a fixing ring (51) fixedly installed on the outside of the inlet pipe (3) near one edge. One end of the fixing ring (51) is fixed A magnetic ring (52) is provided, and a sealing ring (53) is fixedly provided at one end of the magnetic ring (52). Two sets of fixing blocks (54) are fixedly provided on the upper side of the fixing ring (51). Movable rods (55) are movably provided on the inner side of the two sets of fixing blocks (54). Two sets of connecting blocks (56) are fixedly provided on the lower side of the movable rods (55). A connecting ring (57) is fixedly provided at one end of the two sets of connecting blocks (56). A collar (58) is fixedly provided on the outer side of the connecting ring (57). A sealing film (59) is provided on the inner side of the collar (58).

2. The mine negative pressure automatic water discharge device with anti-backflow function according to claim 1, characterized in that: The sealing film (59) is wrapped with a magnetic ring sleeve (510) inside. The sleeve (58) has an annular groove (511) inside corresponding to the magnetic ring sleeve (510). The magnetic ring sleeve (510) has an inner annular groove (512) inside. A first plate spring (513) is provided between the inner annular groove (512) and the inner wall of the annular groove (511). The inner wall of the annular groove (511) has a concave annular groove (514). The inner ring of the sealing film (59) has a corrugated part (515) corresponding to the concave annular groove (514).

3. A mine negative pressure automatic water discharge device with anti-backflow function according to claim 2, characterized in that: The scraper assembly (6) includes a fixed plate (61) fixedly mounted on one end of a connecting ring (57). The fixed plate (61) has four sets of square grooves (62) on its inner side. Sliding strips (63) are slidably mounted on the inner side of each of the four sets of square grooves (62). An arc-shaped strip (64) is fixedly mounted at one end of each of the four sets of sliding strips (63). Scraping strips (65) are fixedly mounted near the edges at both ends of each of the four sets of arc-shaped strips (64). A first connecting shaft (66) is fixedly mounted at the opposite end of each of the four sets of sliding strips (63). H-shaped parts (67) are movably mounted on each of the four sets of first connecting shafts (66). Each of the H-shaped parts (67) has a second connecting shaft (68) movably arranged on one side. A connecting piece (69) is fixedly arranged between the four sets of second connecting shafts (68). A movable shaft (610) is fixedly arranged on the inner side of the connecting piece (69). A circular groove (611) is opened on the inner side of the H-shaped part (67). A fixed sleeve (612) is fixedly arranged at the center of the H-shaped part (67). A second plate spring (613) is arranged between the movable shaft (610) on the inner side of the fixed sleeve (612) and the inner wall of the fixed sleeve (612). A limit piece (614) is fixedly arranged on the inner side of the water inlet pipe (3) near the edge.

4. A mine negative pressure automatic water discharge device with anti-backflow function according to claim 1, characterized in that: The inlet pipe (3) and outlet pipe (4) are connected to the inside of the negative pressure automatic water dispenser (1). The movable rod (55) rotates along the fixed block (54) to satisfy the collar (58) covering one end of the inlet pipe (3).

5. A mine negative pressure automatic water discharger with anti-backflow function according to claim 1, characterized in that: The connecting ring (57) and the collar (58) are fixedly connected by bolts, and the sealing film (59) is positioned corresponding to the sealing ring (53).

6. A mine negative pressure automatic water discharge device with anti-backflow function according to claim 2, characterized in that: The magnetic ring sleeve (510) is magnetically compatible with the magnetic sheet ring (52). The magnetic ring sleeve (510) is inserted into the inner side of the annular groove (511). The first sheet spring (513) is in a compressed state. The corrugated part (515) is adapted to the size setting of the concave annular groove (514).

7. A mine negative pressure automatic water discharge device with anti-backflow function according to claim 3, characterized in that: The fixed plate (61) and the connecting ring (57) are fixedly connected by bolts. Two of the four sets of arc strips (64) are staggered. The scraper strip (65) is inclined. The H-shaped part (67) is adapted to the square groove (62). The H-shaped part (67) is located inside the circular groove (611).

8. A mine negative pressure automatic water discharge device with anti-backflow function according to claim 3, characterized in that: The movable shaft (610) rotates to the position of the corresponding limiting piece (614), the movable shaft (610) moves through the inside of the fixed plate (61), and the fixed sleeve (612) partially passes through one side of the connecting ring (57).

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