Mechanical unpowered vacuum interface valve

Abstract

The utility model discloses a mechanical unpowered vacuum interface valve, relates to the technical field of interface valves, and aims to solve the problem that when clean water is flushed into a flushing pipe, filter residues on a sealing block uprush to be flushed into a water inlet again due to the problem that the water discharge amount of a residue discharge pipe is too small, so that the filter residues are secondarily accumulated at the water inlet. A water inlet pipe is arranged on one side of the interface valve body, a filter screen is installed at the communication position of the interface valve body and the water inlet pipe, and the interface valve is characterized in that a filter residue guiding-out mechanism is arranged at the position close to the filter screen and located at the bottom of the water inlet pipe, and a covering mechanism is arranged above the filter residue guiding-out mechanism in a sliding mode; when the rotating disc is rotated to drive the sealing block to descend, the first belt pulley on the rod body of the rotating disc rotates along with the rotating disc, the second belt pulley is driven through the transmission belt, then the rotating shaft is driven to rotate, the rotating shaft drives the gear to rotate, and the gear drives the rack to move towards one side close to the filter screen until the joint of the connecting pipe and the water inlet pipe is covered.

Description

Technical Field

[0001] The utility model relates to the technical field of interface valves, in particular to a mechanical non-powered vacuum interface valve. Background Technique

[0002] At present, in the drainage field, a stepped valve core or a tapered valve core is commonly used to slide in the valve body to realize the opening or closing of fluid. However, in the field of vacuum sewage discharge, the conventional valve core and valve body do not have ideal effects in terms of response speed, sealing performance, and reliability. In this context, people have developed vacuum interface valves, which have the advantages of high response speed, high throughput, and high sealing performance. However, in the existing mechanical non-powered vacuum interface valves, the liquid entering the vacuum interface valve usually does not have a filtering effect, so impurities in the liquid often easily cause damage to the inside of the vacuum interface valve.

[0003] The existing patent publication number CN218687142U discloses a mechanical non-powered vacuum interface valve. By the combined use of a rotary knob, a screw rod, a pull rod, etc., the sealing block is driven to move downward to the slag discharge pipe and the flushing pipe. When the valve is opened, the impurities on the upper surface of the sealing block can be flushed into the slag discharge pipe through the flushing pipe and discharged by the slag discharge pipe. The operation is simple. It can not only filter the liquid entering the inside of the vacuum interface valve, but also discharge the filter residue from the water inlet.

[0004] However, it is found in actual operation that when clear water is flushed into the flushing pipe, the water flow will carry the filter residue on the sealing block and surge back into the water inlet due to the problem of too small drainage volume of the slag discharge pipe, resulting in the problem of secondary accumulation of the filter residue at the water inlet. Content of the Utility Model

[0005] To solve the above technical problems, a mechanical non-powered vacuum interface valve is provided, which solves the problem that in actual operation, when clear water is flushed into the flushing pipe, the water flow will carry the filter residue on the sealing block and surge back into the water inlet due to the problem of too small drainage volume of the slag discharge pipe, resulting in the problem of secondary accumulation of the filter residue at the water inlet in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a mechanical non-powered vacuum interface valve, including an interface valve body, a water inlet pipe is arranged on one side of the interface valve body, a filter screen is installed at the connection between the interface valve body and the water inlet pipe, and it is characterized in that: a filter residue export mechanism is arranged at a position adjacent to the filter screen, the filter residue export mechanism is located at the bottom of the water inlet pipe, and a covering mechanism is slidably arranged above the filter residue export mechanism;

[0007] The filter residue export mechanism includes a connecting pipe fixed to the bottom of the water inlet pipe and a sealing block slidably arranged in the connecting pipe. The two sides of the connecting pipe are respectively communicated with a slag discharge pipe and a flushing pipe, and a driving component is arranged below the sealing block;

[0008] The covering mechanism includes a shielding cover with a cavity inside, which is slidably arranged above the connecting pipe. The bottom of the shielding cover is slidably connected to the inner wall of the water inlet pipe, and a transmission component linked to the driving component is arranged below the shielding cover.

[0009] Preferably, the driving component includes a limiting block arranged below the sealing block. The limiting block is fixed to the inner side wall of the connecting pipe. A T-shaped push rod is arranged below the limiting block. The top end of the push rod slidably penetrates through the limiting block and is fixed to the sealing block. Limiting columns are arranged on both sides of the push rod. The top end of the limiting column is fixed to the limiting block. The end of the limiting column slidably penetrates through the push rod and is fixed to the bottom surface of the inner wall of the connecting pipe. A rotating rod is arranged below the connecting pipe. The top end of the rotating rod slidably penetrates into the connecting pipe and is fixed with a screw rod. The screw rod threadedly penetrates through the push rod, and a turntable is fixedly sleeved at the end of the rotating rod.

[0010] Preferably, the transmission component includes a gear arranged below the shielding cover. A rack is fixed to one side of the inner wall of the cavity. The gear meshes with one side of the rack. A rectangular through hole is formed on one side of the bottom surface of the shielding cover. The rectangular through hole communicates with the inner cavity of the shielding cover. A rotating shaft is arranged below the through hole. The top end of the rotating shaft slidably penetrates into the rectangular through hole of the shielding cover and is fixed to the bottom surface of the gear.

[0011] Preferably, the transmission component further includes a second pulley fixedly sleeved at the end of the rotating shaft and a first pulley fixedly sleeved on the rod body of the rotating rod. The second pulley is connected to the first pulley through a transmission belt.

[0012] Compared with the prior art, the advantages of the present utility model are as follows:

[0013] (1) Through the cooperative setting of the slag discharging mechanism and the driving component, impurities fall on the upper surface of the sealing block under the action of their own gravity. When the impurities are discharged from the water inlet pipe, the turntable drives the rotating rod to rotate. The rotation of the rotating rod drives the screw rod, and the rotation of the screw rod drives the push rod. However, the push rod is restricted by the limiting columns on both sides, so that the push rod can only move downward along the screw rod. The downward movement of the push rod drives the sealing block to move downward synchronously until the top surface of the sealing block 7 descends to a position corresponding to the slag discharging pipe and the flushing pipe. At this time, the bottom of the push rod just descends to abut against the bottom surface of the inner wall of the connecting pipe. Subsequently, an external water pipe is connected to the flushing pipe. Through flushing, the impurities on the upper surface of the sealing block can be flushed into the slag discharging pipe, and the impurities are discharged from the slag discharging pipe. In this way, the cleaning of impurities can be completed.

[0014] (2) Through the coordinated arrangement of the covering mechanism and the driving component, when the rotating turntable drives the sealing block 7 to descend, the first pulley on the turntable rod body rotates accordingly, and the rotation of the first pulley drives the second pulley through the transmission belt, and the rotation of the second pulley drives the rotating shaft to rotate synchronously, and the rotation of the rotating shaft drives the rotation of the gear, and the rotation of the gear drives the rack to move toward the side close to the filter until the connection between the connecting pipe and the water inlet pipe is covered. In this way, the problem existing in the prior art that when clean water is flushed into the flushing pipe, the water flow will carry the filter residue on the sealing block up and flush into the water inlet again due to the problem that the drainage volume of the slag discharge pipe is too small, causing the filter residue to accumulate at the water inlet for the second time can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0017] Figure 3 for Figure 1 Enlarged schematic diagram of point B in the middle.

[0018] The numbers in the figure are:

[0019] 1. Interface valve body; 2. Water inlet pipe; 3. Drive belt; 4. Filter; 5. Connecting pipe; 6. Limiting block; 7. Sealing block; 8. Limiting column; 9. Push rod; 10. Screw; 11. Rotating rod; 12. Turntable; 13. First pulley; 14. Slag discharge pipe; 15. Flushing pipe; 16. Rotating shaft; 17. Shielding cover; 18. Rack; 19. Gear; 20. Second pulley. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] Reference Figure 1 , Figure 2 and Figure 3 As shown, a mechanical unpowered vacuum interface valve comprises an interface valve body 1, a water inlet pipe 2 is arranged on one side of the interface valve body 1, a filter screen 4 is installed at the connection between the interface valve body 1 and the water inlet pipe 2, a filter residue outlet mechanism is arranged near the filter screen 4, the filter residue outlet mechanism is located at the bottom of the water inlet pipe 2, and a covering mechanism is slidably arranged above the filter residue outlet mechanism;

[0022] The filter residue discharging mechanism includes a connecting pipe 5 fixed to the bottom of the water inlet pipe 2 and a sealing block 7 slidably arranged in the connecting pipe 5. The two sides of the connecting pipe 5 are respectively communicated with a slag discharging pipe 14 and a flushing pipe 15. A driving component is arranged below the sealing block 7;

[0023] The driving component includes a limiting block 6 arranged below the sealing block 7. The limiting block 6 is fixed to the inner side wall of the connecting pipe 5. A T-shaped push rod 9 is arranged below the limiting block 6. The top end of the push rod 9 slidably penetrates through the limiting block 6 and is fixed to the sealing block 7. Limiting columns 8 are arranged on both sides of the push rod 9. The top end of the limiting column 8 is fixed to the limiting block 6. The end of the limiting column 8 slidably penetrates through the push rod 9 and is fixed to the bottom surface of the inner wall of the connecting pipe 5. A rotating rod 11 is arranged below the connecting pipe 5. The top end of the rotating rod 11 slidably penetrates into the connecting pipe 5 and is fixed with a screw rod 10. The screw rod 10 threadedly penetrates through the push rod 9. A turntable 12 is fixedly sleeved at the end of the rotating rod 11;

[0024] Through the cooperative setting of the filter residue discharging mechanism and the driving component, the liquid entering the interface valve body 1 filters out the impurities in the liquid through the filter screen 4. When the vacuum interface valve stops being used, the impurities fall on the upper surface of the sealing block 7 under the action of their own gravity. When the impurities are discharged from the water inlet pipe 2, the turntable 12 is driven to drive the rotating rod 11 to rotate. The rotation of the rotating rod 11 drives the screw rod 10, and the rotation of the screw rod 10 drives the push rod 9. However, the push rod 9 is restricted by the limiting columns 8 on both sides, so that the push rod 9 can only move downward along the screw rod 10. The downward movement of the push rod 9 drives the sealing block 7 to move downward synchronously until the top surface of the sealing block 7 drops to a position corresponding to the slag discharging pipe 14 and the flushing pipe 15. At this time, the bottom of the push rod 9 just drops to abut against the bottom surface of the inner wall of the connecting pipe 5. Subsequently, an external water pipe is connected to the flushing pipe 15, and the impurities on the upper surface of the sealing block 7 can be flushed into the slag discharging pipe 14 through flushing, and the impurities are discharged from the slag discharging pipe 14. In this way, the cleaning of the impurities can be completed. Similarly, after the filter residue is cleared, reversing the turntable 12 can drive the push rod 9 to rise. The rising of the push rod 9 drives the sealing block 7 to rise. When the sealing block 7 rises to the connection between the connecting pipe 5 and the water inlet pipe 2, the push rod 9 rises to abut against the bottom surface of the limiting block 6.

[0025] However, it is found in actual operation that when clean water is flushed into the flushing pipe 15, the water flow first enters the connecting pipe and then discharges the filter residue from the slag discharging pipe. During this process, the water flow will also carry the filter residue on the sealing block up and re-enter the water inlet due to the problem of too small drainage volume of the slag discharging pipe 14, resulting in the secondary accumulation of the filter residue at the water inlet and causing the problem of reduced cleaning effect of the filter residue in the water inlet pipe 2.

[0026] In view of this, in order to solve the above problems, referring to Figures 1 to 3 As shown, it should be noted that a covering mechanism is slidably arranged above the filter residue discharging mechanism;

[0027] The covering mechanism includes a shielding cover 17 with a cavity inside, which is slidably arranged above the connecting pipe 5. The bottom of the shielding cover 17 is slidably connected to the inner wall of the water inlet pipe 2. A transmission component linked to the driving component is arranged below the shielding cover 17.

[0028] The transmission component includes a gear 19 arranged below the shielding cover 17. A rack 18 is fixed to one side of the inner wall of the cavity. The gear 19 meshes with one side of the rack 18. A rectangular through hole is formed on one side of the bottom surface of the shielding cover 17. The rectangular through hole communicates with the inner cavity of the shielding cover 17. A rotating shaft 16 is arranged below the through hole. The top end of the rotating shaft 16 slidably penetrates into the rectangular through hole of the shielding cover 17 and is fixed to the bottom surface of the gear 19.

[0029] The transmission component further includes a second pulley 20 fixedly sleeved on the end of the rotating shaft 16 and a first pulley 13 fixedly sleeved on the rod body of the rotating rod 11. The second pulley 20 and the first pulley 13 are connected by a transmission belt 3.

[0030] Through the cooperative setting of the covering mechanism and the driving component, when the turntable 12 is rotated to drive the sealing block 7 to descend, the first pulley 13 on the rod body of the turntable 12 rotates accordingly. The rotation of the first pulley 13 drives the second pulley 20 through the transmission belt 3. The rotation of the second pulley 20 drives the rotating shaft 16 to rotate synchronously. The rotation of the rotating shaft 16 drives the gear 19 to rotate. The rotation of the gear 19 drives the rack 18 to move towards the side close to the filter screen 4. During this process, the connection between the connecting pipe 5 and the water inlet pipe 2 is covered by the gear 19 until it is covered. In this way, the problem in the prior art that when clear water is flushed into the flushing pipe 15, the water flow will carry the filter residue on the sealing block and surge back into the water inlet due to the too small drainage volume of the drainage pipe 14, resulting in the secondary accumulation of filter residue at the water inlet can be solved. Similarly, when the turntable 12 is rotated in reverse to drive the sealing block 7 to rise, the first pulley 13 on the rod body of the turntable 12 rotates in reverse accordingly. The reverse rotation of the first pulley 13 drives the second pulley 20 through the transmission belt 3. The reverse rotation of the second pulley 20 drives the rotating shaft 16 to rotate in reverse synchronously. The rotation of the rotating shaft 16 drives the gear 19 to rotate in reverse. The reverse rotation of the gear 19 drives the rack 18 to move away from the side of the filter screen 4 until the connection between the connecting pipe 5 and the water inlet pipe 2 is exposed. Thus, after the sewage is connected to the water inlet pipe 2, it does not prevent the filter residue filtered by the filter screen 4 from falling onto the top surface of the sealing block 7.

[0031] The basic principle, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A mechanical unpowered vacuum interface valve, comprising an interface valve body (1), a water inlet pipe (2) being arranged on one side of the interface valve body (1), a filter screen (4) being installed at the connection point between the interface valve body (1) and the water inlet pipe (2), characterized in that: A filter residue outlet mechanism is provided near the filter screen (4), the filter residue outlet mechanism is located at the bottom of the water inlet pipe (2), and a covering mechanism is slidably provided above the filter residue outlet mechanism; The filter residue discharge mechanism comprises a connecting pipe (5) fixed to the bottom of the water inlet pipe (2) and a sealing block (7) slidably arranged in the connecting pipe (5), the two sides of the connecting pipe (5) are respectively connected to a slag discharge pipe (14) and a flushing pipe (15), and a driving component is arranged below the sealing block (7); The covering mechanism comprises a shielding cover (17) with a cavity inside and slidably arranged above the connecting pipe (5); the bottom of the shielding cover (17) is slidably connected to the inner wall of the water inlet pipe (2); and a transmission component linked to the driving component is arranged below the shielding cover (17).

2. A mechanical unpowered vacuum interface valve according to claim 1, characterized in that: The driving component comprises a limiting block (6) arranged below the sealing block (7), the limiting block (6) being fixed to the inner side wall of the connecting tube (5), a T-shaped propulsion rod (9) being arranged below the limiting block (6), the top end of the propulsion rod (9) slidingly passing through the limiting block (6) and being fixed to the sealing block (7), limiting columns (8) being arranged on both sides of the propulsion rod (9), the top end of the limiting column (8) being fixed to the limiting block (6), the bottom end of the limiting column (8) slidingly passing through the propulsion rod (9) and being fixed to the bottom surface of the inner wall of the connecting tube (5), a rotating rod (11) being arranged below the connecting tube (5), the top end of the rotating rod (11) slidingly passing through the connecting tube (5) and being fixed with a screw rod (10), the screw rod (10) threadedly passing through the propulsion rod (9), and the bottom end of the rotating rod (11) being fixedly sleeved with a rotating disk (12).

3. A mechanical unpowered vacuum interface valve according to claim 2, characterized in that: The transmission component comprises a gear (19) arranged below the shielding cover (17); a rack (18) is fixed to one side of the inner wall of the cavity; one side of the rack (18) is meshed with the gear (19); a rectangular through hole is opened on one side of the bottom surface of the shielding cover (17); the rectangular through hole is connected to the inner cavity of the shielding cover (17); a rotating shaft (16) is arranged below the through hole; the top end of the rotating shaft (16) slides into the rectangular through hole of the shielding cover (17) and is fixed to the bottom surface of the gear (19).

4. A mechanical unpowered vacuum interface valve according to claim 3, characterized in that: The transmission component also includes a second pulley (20) fixedly sleeved on the end of the rotating shaft (16) and a first pulley (13) fixedly sleeved on the rod body of the rotating rod (11), and the second pulley (20) is connected to the first pulley (13) via a transmission belt (3).

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