Liquid return prevention structure for centrifugal machine

Abstract

The utility model provides a liquid return prevention structure for a centrifugal machine. The liquid return prevention structure comprises a feeding pipe main body, the clamping plate is arranged at the bottom of the outer surface of the feeding pipe body, and a clamping groove is formed in the middle of the top of the clamping plate. According to the liquid return preventing structure for the centrifugal machine, the feeding pipe body is installed in the clamping groove in the top of the clamping plate through the sliding groove and the sliding rod, buffering and damping are conducted on the feeding pipe body and the clamping plate through the restoring elastic force of the first spring, and the moving plate is pushed through the restoring elastic force of the second spring; the device is simple in structure and high in practicability, connection between the feeding pipe main body and the clamping plate can be buffered, the clamping plate and the feeding pipe main body are connected together through the limiting device, the influence of the working vibration effect of the centrifugal machine on the feeding pipe main body and the clamping plate is reduced, and the service life of the centrifugal machine is prolonged. The stability of connection between the feeding pipe main body and the clamping plate is kept, and the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of centrifuges, in particular to a liquid backflow prevention structure for centrifuges. Background Art

[0002] The feed pipe consists of a support and a pipe. The support is used to support the cantilever pipe and has a circular opening at the bottom for discharging the liquid returned from the centrifuge. The shield is used to collect the liquid returned from the centrifuge due to abnormal shutdown of the centrifuge, such as sudden power outage, abnormal rotation of the drum and screw, and failure to shut down according to the set parameters; the feed volume increases significantly, the centrifuge cannot process the excess, and the material is returned from the feed pipe; during the shutdown process after normal cleaning, due to the different shutdown speeds of the drum and screw, some liquid loses weight and is discharged from the feed pipe.

[0003] The shield is mounted on the centrifuge chassis and located below the feed pipe support. The feed pipe and shield lack a fixed connection. The shield primarily collects the liquid discharged from the feed pipe by gravity. However, due to the centrifuge's inherent speed, the discharged liquid is easily ejected tangentially due to centrifugal force. The shield cannot completely collect the returned liquid, and the splashed material or water can easily cause moisture and even contamination in the workshop. Prior art methods collect this liquid by installing a return hopper at the bottom of the feed pipe, such as the feed pipe anti-return device disclosed in Publication No. CN211937442U. This device secures the feed pipe 1 to the centrifuge bearing housing with hexagon socket screws 2; the return hopper 3 is secured to the lower end of the feed pipe body 1 with hexagon socket screws and washers. Material is pumped into the feed pipe via a pumping system, then enters the centrifuge spiral and, in turn, the rotating drum. If the delivery volume of the pumping system is too large, the excess material that cannot enter the spiral discharge port will be discharged into the gap between the spiral and the feed pipe through the spiral return port, enter the return liquid hopper, and then enter the clear liquid. However, the return hopper is installed at the bottom of the feed pipe by bolts. As the centrifuge works, it vibrates, and the vibration effect will affect the bolt installation between the return hopper and the feed pipe. In addition, the bolt installation method is not conducive to shock absorption, and the disassembly and assembly efficiency is slow.

[0004] Therefore, it is necessary to provide a liquid backflow prevention structure for a centrifuge to solve the above technical problems. Utility Model Content

[0005] The utility model provides a liquid return prevention structure for a centrifuge, which solves the problems that a return hopper is installed at the bottom of a feed pipe by means of bolts, vibration is generated as the centrifuge works, the vibration effect affects the installation of the bolts between the return hopper and the feed pipe, the bolt installation method is not conducive to shock absorption, and the disassembly and assembly efficiency is slow.

[0006] In order to solve the above technical problems, the utility model provides a liquid backflow prevention structure for a centrifuge, comprising: a feed pipe main body;

[0007] A card plate, the card plate is arranged at the bottom of the outer surface of the feeding pipe body, a card slot is opened in the middle of the top of the card plate, slide slots are opened on both sides of the top of the card plate, a slide rod is fixedly installed inside the slide slot, a connecting hole is opened on both sides of the outer surface of the card plate, a movable slot is opened on both sides of the inner wall of the connecting hole, a movable rod is fixedly installed inside the movable slot, a second spring is sleeved on one side of the outer surface of the movable rod, and a limiting device is provided inside the connecting hole;

[0008] The two clamping holes are respectively opened on both sides of the outer surface of the feeding tube body, and the bottoms of both sides of the outer surface of the clamping holes are fixedly installed with sliders, and the bottom of the outer surface of the slide rod is sleeved with a first spring.

[0009] Preferably, the limiting device includes a card rod, a movable plate and a pull block, the card rod is slidably installed inside the connecting hole, the two movable plates are fixedly installed on both sides of the outer surface of the card rod, and the pull block is fixedly connected to one end of the card rod.

[0010] Preferably, a pad is fixedly connected to the top of the slot.

[0011] Preferably, a return hopper is fixedly installed on the bottom of the clamping plate.

[0012] Preferably, an elbow is fixedly installed on one side of the outer surface of the return hopper.

[0013] Preferably, an externally threaded tube is provided at the bottom of the outer surface of the elbow.

[0014] Compared with the related art, the anti-liquid backflow structure for a centrifuge provided by the present invention has the following beneficial effects:

[0015] The utility model provides a liquid backflow prevention structure for a centrifuge, wherein a feed pipe body is mounted inside a clamping groove on the top of a clamping plate through a slide groove and a slide rod, and the restoring elastic force of a first spring buffers and shocks the feed pipe body and the clamping plate, and the mobile plate is pushed by the restoring elastic force of a second spring so that the clamping rod is embedded in a clamping hole on the surface of the feed pipe body. The device has a simple structure and is highly practical, can buffer the connection between the feed pipe body and the clamping plate, and a limiting device connects the clamping plate and the feed pipe body together, reducing the influence of the working vibration effect of the centrifuge on the feed pipe body and the clamping plate, maintaining the stability of the connection between the feed pipe body and the clamping plate, and improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a first embodiment of a liquid backflow prevention structure for a centrifuge provided by the present utility model;

[0017] Figure 2 for Figure 1 A schematic cross-sectional view of the annular plate shown;

[0018] Figure 3 for Figure 2 An enlarged schematic diagram of point A is shown;

[0019] Figure 4 for Figure 3 The schematic diagram of the limiting device structure is shown.

[0020] Numbers in the figure: 1. Feed pipe body, 2. Pad, 3. Return hopper, 4. Elbow, 5. External threaded pipe, 6. Clamping plate, 7. Clamping groove, 8. Slide groove, 9. Slide rod, 10. Slider, 11. First spring, 12. Connecting hole, 13. Moving groove, 14. Second spring, 15. Moving rod, 16. Limiting device, 161. Clamping rod, 162. Moving plate, 163. Pull block, 17. Clamping hole. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0022] First embodiment

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,in, Figure 1 This is a structural schematic diagram of a first embodiment of a liquid backflow prevention structure for a centrifuge provided by the present invention; Figure 2 for Figure 1 A schematic cross-sectional view of the annular plate shown; Figure 3 for Figure 2 An enlarged schematic diagram of point A is shown; Figure 4 for Figure 3 The schematic diagram of the limiting device structure is shown. A liquid backflow prevention structure for a centrifuge comprises: a feed pipe body 1;

[0024] A card plate 6 is provided at the bottom of the outer surface of the feeding pipe body 1, a card slot 7 is provided in the middle of the top of the card plate 6, slide slots 8 are provided on both sides of the top of the card plate 6, a slide rod 9 is fixedly installed inside the slide slot 8, a connecting hole 12 is provided on both sides of the outer surface of the card plate 6, a movable groove 13 is provided on both sides of the inner wall of the connecting hole 12, a movable rod 15 is fixedly installed inside the movable groove 13, a second spring 14 is sleeved on one side of the outer surface of the movable rod 15, and a limiting device 16 is provided inside the connecting hole 12;

[0025] The two clamping holes 17 are respectively opened on both sides of the outer surface of the feeding tube body 1, and the bottom of both sides of the outer surface of the clamping holes 17 are fixedly installed with sliders 10, and the bottom of the outer surface of the slide rod 9 is sleeved with a first spring 11.

[0026] The limiting device 16 includes a card rod 161, a movable plate 162 and a pull block 163. The card rod 161 is slidably installed inside the connecting hole 12. The two movable plates 162 are fixedly installed on both sides of the outer surface of the card rod 161. The pull block 163 is fixedly connected to one end of the card rod 161.

[0027] The top of the slot 7 is fixedly connected with a backing plate 2 .

[0028] A return hopper 3 is fixedly mounted on the bottom of the clamping plate 6 .

[0029] An elbow 4 is fixedly mounted on one side of the outer surface of the return hopper 3 .

[0030] An external threaded pipe 5 is provided at the bottom of the outer surface of the elbow 4 .

[0031] The working principle of the anti-liquid backflow structure for a centrifuge provided by the utility model is as follows:

[0032] During operation, first pull the two clamping rods 161 toward the side away from the clamping slot 7 to facilitate sleeve placement of the clamping plate 6 on the bottom of the outer surface of the feed pipe body 1 , and allow the slide rod 9 to pass through the slider 10 .

[0033] Then release the clamping rod 161, the restoring elastic force of the first spring 11 pushes the movable plate 162 to move, and the movable plate 162 drives the clamping rod 161 to move, and the clamping rod 161 is embedded in the clamping hole 17 to assemble the feed pipe body 1 and the clamping plate 6 together.

[0034] Compared with the related art, the anti-liquid backflow structure for a centrifuge provided by the present invention has the following beneficial effects:

[0035] The utility model provides a liquid backflow prevention structure for a centrifuge, wherein a feed pipe body 1 is mounted inside a card slot 7 on the top of a card plate 6 through a slide groove 8 and a slide rod 9, and the restoring elastic force of a first spring 11 performs buffering and shock absorption on the feed pipe body 1 and the card plate 6, and the restoring elastic force of a second spring 14 pushes a movable plate 162 so that the card rod 161 is embedded in a card hole 17 on the surface of the feed pipe body 1. The device has a simple structure and is highly practical, can buffer the connection between the feed pipe body 1 and the card plate 6, and a limiting device 16 connects the card plate 6 and the feed pipe body 1 together, reducing the influence of the working vibration effect of the centrifuge on the feed pipe body 1 and the card plate 6, maintaining the stability of the connection between the feed pipe body 1 and the card plate 6, and improving the disassembly and assembly efficiency.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A liquid backflow prevention structure for a centrifuge, characterized in that: include: Feed pipe body; A card plate, the card plate is arranged at the bottom of the outer surface of the feeding pipe body, a card slot is opened in the middle of the top of the card plate, slide slots are opened on both sides of the top of the card plate, a slide rod is fixedly installed inside the slide slot, a connecting hole is opened on both sides of the outer surface of the card plate, a movable slot is opened on both sides of the inner wall of the connecting hole, a movable rod is fixedly installed inside the movable slot, a second spring is sleeved on one side of the outer surface of the movable rod, and a limiting device is provided inside the connecting hole; The two clamping holes are respectively opened on both sides of the outer surface of the feeding tube body, and the bottoms of both sides of the outer surface of the clamping holes are fixedly installed with sliders, and the bottom of the outer surface of the slide rod is sleeved with a first spring.

2. The anti-liquid backflow structure for a centrifuge according to claim 1, characterized in that: The limiting device includes a card rod, a movable plate and a pull block. The card rod is slidably installed inside the connecting hole. The two movable plates are fixedly installed on both sides of the outer surface of the card rod. The pull block is fixedly connected to one end of the card rod.

3. The anti-liquid backflow structure for a centrifuge according to claim 1, characterized in that: A backing plate is fixedly connected to the top of the slot.

4. The anti-liquid backflow structure for a centrifuge according to claim 1, characterized in that: A return hopper is fixedly installed on the bottom of the clamping plate.

5. The anti-liquid backflow structure for a centrifuge according to claim 4, characterized in that: An elbow is fixedly installed on one side of the outer surface of the return hopper.

6. The anti-liquid backflow structure for a centrifuge according to claim 5, characterized in that: An external threaded pipe is provided at the bottom of the outer surface of the elbow.

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