Backflow prevention device of resin feeding pump

Abstract

The utility model provides an anti-backflow device of a resin feeding pump, which comprises a supporting bottom plate, a supporting rod arranged at the top of the supporting bottom plate, a top plate arranged at the top of the supporting rod, two fixing assemblies arranged at the top of the top plate, a pumping assembly arranged on the two fixing assemblies, and a split pipe assembly and a maintenance valve arranged on the pumping assembly, moving grooves are symmetrically formed in the top of the top plate, a heat preservation plate is arranged on the outer side of the pumping assembly, the heat preservation plate is fixedly connected to the fixing block, sliding grooves are symmetrically formed in the tops of the moving plates, sliding blocks are slidably connected into the sliding grooves, springs are symmetrically arranged in the sliding grooves, and inserting holes are symmetrically formed in the inner walls of the sliding grooves; according to the one-way valve convenient to replace, the one-way valve can be conveniently and rapidly replaced, a fixing pin does not need to be manually loosened and tightened, convenience is brought to a user, and the working efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of feeding pumps, and in particular to a backflow prevention device for a resin feeding pump. Background Art

[0002] A feed pump is a device or equipment that creates a vacuum by evacuating the container through mechanical, physical, chemical, or physicochemical methods. Currently, when a feed pump is pumping material, there must be material in the feed pipe; otherwise, the pump will be drained, making it difficult to extract the material. If the feed pump is off for an extended period, the material in the feed pipe will flow back into the tank. A check valve is typically used to prevent this backflow. Feed pumps are commonly used when feeding resin.

[0003] After searching, the disclosure (announcement) number CN218088958U discloses a backflow prevention device for a feeding pump, including a base plate, support columns fixed on all sides of the top of the base plate, a top plate fixed on the top of the support columns, and a feeding pump fixed on one side of the top of the base plate... This application uses a split pipe in combination with a maintenance valve and a sealing valve to continue feeding when repairing and replacing the one-way valve, which can effectively avoid the impact of maintenance on the feeding work. The two insulation plates are fitted together to insulate the one-way valve when the temperature is low, which can improve the function of the one-way valve at low temperatures and solve the problem that feeding cannot be continued when replacing the one-way valve, and the one-way valve is prone to leakage at low temperatures, affecting the non-return effect. However, the protrusion and the fixing pin of this application are threaded together, and manual operation is required to loosen and tighten the fixing pin when repairing and replacing the one-way valve. This method is inefficient and cannot be quickly disassembled and assembled, which adds cumbersomeness to the maintenance and replacement operations and brings inconvenience to users.

[0004] In summary, how to quickly disassemble and replace the one-way valve and improve work efficiency is a technical problem that needs to be solved urgently. To this end, we propose a backflow prevention device for a resin feeding pump. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a backflow prevention device for a resin feeding pump, comprising a supporting base plate, a supporting rod arranged on the top of the supporting base plate, a top plate arranged on the top of the supporting rod, two fixed components arranged on the top of the top plate, a pumping component arranged on the two fixed components, and a split pipe component and a maintenance valve arranged on the pumping component, the top of the top plate is symmetrically provided with a movable groove, the interior of the movable groove is provided with a movable plate, the top of the movable plate is fixedly connected to a fixed block, an insulation plate is provided on the outside of the pumping component, the insulation plate is fixedly connected to the fixed block, the top of the movable plate is symmetrically provided with a sliding groove, the interior of the sliding groove is slidably connected to a sliding block, the interior of the sliding groove is symmetrically provided with a spring, the inner wall of the sliding groove is symmetrically provided with a socket, the inner wall of the socket is connected with a limiting rod, and the inner wall of the movable groove is symmetrically provided with a limiting groove.

[0006] According to the technical solution provided in the embodiment of the present application, one end of the spring is fixedly connected to the sliding block, and the other end of the spring is fixedly connected to the inner wall of the sliding groove.

[0007] According to the technical solution provided in the embodiment of the present application, one end of the limiting rod is fixedly connected to the sliding block, and the other end of the limiting rod extends to the interior of the limiting groove.

[0008] According to the technical solution provided in the embodiment of the present application, sliding grooves are symmetrically opened on the inner wall of the sliding groove, and sliding blocks adapted to the sliding grooves are symmetrically fixedly connected to the outer side of the sliding block.

[0009] According to the technical solution provided in the embodiment of the present application, the inner wall of the movable groove is symmetrically provided with sliding grooves, the outer side of the movable plate is symmetrically fixedly connected with sliding bars adapted to the sliding grooves, and the sliding bars and the movable plate are integrally formed.

[0010] According to the technical solution provided in the embodiment of the present application, the two adjacent springs and the two adjacent limit rods are symmetrically distributed on the left and right sides of the central axis of the sliding block, the length of the fixed block is equal to the length of the insulation plate, and the width of the movable plate is equal to the length of the fixed block.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The two sliding blocks are carried by hand to move relative to each other, and the movement of the sliding blocks drives the limit rod to move, and the sliding blocks drive the limit rod to move out of the inside of the limit groove, thereby releasing the limit on the movable plate, and then the two sliding blocks are carried by hand to drive the movable plate to move toward the outside of the top plate, thereby driving the fixed block and the insulation plate to move, so that the two insulation plates are moved to the front and back sides of the pumping assembly respectively, and the two insulation plates can be quickly opened; in summary, the present application facilitates the rapid replacement of the one-way valve, and there is no need to manually loosen and tighten the fixing pin, which brings convenience to the user and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure of the area at center A;

[0016] Figure 3 It is a schematic diagram of the top plate structure of the utility model.

[0017] 1. Support base plate; 2. Support rod; 3. Top plate; 4. Split pipe assembly; 5. Pumping assembly; 6. Fixed assembly; 7. Maintenance valve; 8. Insulation plate; 9. Fixed block; 10. Moving plate; 11. Moving groove; 12. Sliding groove; 13. Spring; 14. Sliding block; 15. Limit rod; 16. Socket; 17. Sliding groove; 18. Sliding block; 19. Limit groove; 20. Sliding bar. DETAILED DESCRIPTION

[0018] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] As mentioned in the background technology, with respect to the threaded connection between the protrusion and the fixing pin in the prior art, manual operation is required to loosen and tighten the fixing pin when repairing or replacing the one-way valve. This method is inefficient and cannot achieve quick disassembly and assembly, which increases the complexity of the repair and replacement operations and brings inconvenience to the user.

[0021] Example:

[0022] See also Figure 1 、 Figure 2 and Figure 3 The utility model provides a technical solution, a backflow prevention device for a resin feeding pump, comprising a supporting base plate 1, a supporting rod 2 arranged on the top of the supporting base plate 1, a top plate 3 arranged on the top of the supporting rod 2, two fixing components 6 arranged on the top of the top plate 3, a pumping component 5 arranged on the two fixing components 6, and a split pipe component 4 and a maintenance valve 7 arranged on the pumping component 5. The one-way valve on the pumping component 5 is installed between the two flanges on the pumping component 5. The fixing component 6, the pumping component 5 and the split pipe component 4 all belong to the existing technology, and their structure and working principle are all referenced. Publication (announcement) No. CN218088958U discloses a backflow prevention device for a feeding pump, which will not be described in detail herein; a moving groove 11 is symmetrically provided on the top of the top plate 3, a moving plate 10 is provided inside the moving groove 11, a fixed block 9 is fixedly connected to the top of the moving plate 10, an insulation plate 8 is provided on the outside of the pumping assembly 5, and the insulation plate 8 is fixedly connected to the fixed block 9, a sliding groove 12 is symmetrically provided on the top of the moving plate 10, a sliding block 14 is slidably connected to the inside of the sliding groove 12, and a spring 13 is symmetrically provided inside the sliding groove 12, and the spring 13 is in a stretched state;

[0023] The two sliding blocks 14 are carried by hand to move relative to each other, and the movement of the sliding block 14 drives the limiting rod 15 to move. The sliding block 14 moves to squeeze the spring 13, and the spring 13 is squeezed and contracts, so that the sliding block 14 drives the limiting rod 15 to move out of the inside of the limiting groove 19, thereby releasing the limit of the movable plate 10, and then the two sliding blocks 14 are carried by hand to drive the movable plate 10 to move to the outside of the top plate 3, thereby driving the fixed block 9 and the insulation plate 8 to move, so that the two insulation plates 8 are respectively moved to the front and rear sides of the pumping assembly 5, which can facilitate the quick replacement of the one-way valve. One end of the spring 13 is fixed to the sliding block 14. Connection, the other end of the spring 13 is fixedly connected to the inner wall of the sliding groove 12, the inner wall of the sliding groove 12 is symmetrically provided with a socket 16, the inner part of the socket 16 is inserted with a limit rod 15, one end of the limit rod 15 is fixedly connected to the sliding block 14, the other end of the limit rod 15 extends to the inside of the limit groove 19, the inner wall of the movable groove 11 is symmetrically provided with a limit groove 19, the two adjacent springs 13 and the two adjacent limit rods 15 are symmetrically distributed on the left and right sides of the central axis of the sliding block 14, the length of the fixed block 9 is equal to the length of the insulation board 8, and the width of the movable plate 10 is equal to the length of the fixed block 9.

[0024] See also Figure 2The inner wall of the sliding groove 12 is symmetrically provided with sliding grooves 17, and the outer side of the sliding block 14 is symmetrically fixedly connected with a sliding block 18 adapted to the sliding groove 17. The sliding groove 17 cooperates with the sliding block 18 to limit the sliding block 14. When the sliding block 14 moves, the sliding block 14 drives the sliding block 18 to move inside the sliding groove 17, thereby improving the stability of the sliding block 14 when moving.

[0025] See also Figure 1 and Figure 3 The inner wall of the moving groove 11 is symmetrically provided with sliding grooves 12, that is, the moving groove 11 and the sliding groove 12 form a "convex" shaped structure, so that the moving plate 10 can be limited and slidably connected to the inside of the moving groove 11, and the outer side of the moving plate 10 is symmetrically fixedly connected with a sliding bar 20 adapted to the sliding groove 12. The cooperation of the sliding bar 20 and the sliding groove 12 limits the moving plate 10. When the moving plate 10 moves, the moving plate 10 drives the sliding bar 20 to move inside the sliding groove 12, and the sliding bar 20 and the moving plate 10 are integrally formed.

[0026] Working principle: The two sliding blocks 14 are moved relative to each other by hand, and the movement of the sliding blocks 14 drives the limit rod 15 to move. The movement of the sliding blocks 14 squeezes the spring 13, and the spring 13 contracts due to the squeezing, so that the sliding blocks 14 drive the limit rod 15 to move out from the inside of the limit groove 19, thereby releasing the limit on the movable plate 10, and then the two sliding blocks 14 are driven by hand to move the movable plate 10 toward the outside of the top plate 3, thereby driving the fixed block 9 and the insulation plate 8 to move, so that the two insulation plates 8 are moved to the front and rear sides of the pumping assembly 5 respectively, which can facilitate the quick replacement of the one-way valve and improve work efficiency.

[0027] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A backflow prevention device for a resin feeding pump, comprising a support base plate (1), a support rod (2) arranged on the top of the support base plate (1), a top plate (3) arranged on the top of the support rod (2), two fixed assemblies (6) arranged on the top of the top plate (3), a pumping assembly (5) arranged on the two fixed assemblies (6), and a split pipe assembly (4) and a maintenance valve (7) arranged on the pumping assembly (5), characterized in that: A movable groove (11) is symmetrically provided on the top of the top plate (3), a movable plate (10) is provided inside the movable groove (11), a fixed block (9) is fixedly connected to the top of the movable plate (10), a heat preservation plate (8) is provided on the outside of the pumping assembly (5), and the heat preservation plate (8) is fixedly connected to the fixed block (9), a sliding groove (12) is symmetrically provided on the top of the movable plate (10), a sliding block (14) is slidably connected to the inside of the sliding groove (12), a spring (13) is symmetrically provided inside the sliding groove (12), an inner wall of the sliding groove (12) is symmetrically provided with a socket (16), a limiting rod (15) is inserted inside the socket (16), and a limiting groove (19) is symmetrically provided on the inner wall of the movable groove (11).

2. The backflow prevention device for a resin feeding pump according to claim 1, characterized in that: One end of the spring (13) is fixedly connected to the sliding block (14), and the other end of the spring (13) is fixedly connected to the inner wall of the sliding groove (12).

3. The backflow prevention device for a resin feeding pump according to claim 1, characterized in that: One end of the limiting rod (15) is fixedly connected to the sliding block (14), and the other end of the limiting rod (15) extends to the interior of the limiting groove (19).

4. The backflow prevention device for a resin feeding pump according to claim 1, characterized in that: The inner wall of the sliding groove (12) is symmetrically provided with sliding grooves (17), and the outer side of the sliding block (14) is symmetrically fixedly connected with a sliding block (18) adapted to the sliding grooves (17).

5. The backflow prevention device for a resin feeding pump according to claim 1, characterized in that: The inner wall of the movable groove (11) is symmetrically provided with a sliding groove (12), and the outer side of the movable plate (10) is symmetrically fixedly connected with a sliding bar (20) adapted to the sliding groove (12), and the sliding bar (20) and the movable plate (10) are integrally formed.

6. The backflow prevention device for a resin feeding pump according to claim 1, characterized in that: The two adjacent springs (13) and the two adjacent limiting rods (15) are symmetrically distributed on the left and right sides of the central axis of the sliding block (14), the length of the fixed block (9) is equal to the length of the insulation plate (8), and the width of the movable plate (10) is equal to the length of the fixed block (9).

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