High-pressure sewage pump stop retreat pad with improved structural strength

Abstract

The utility model provides a kind of high-pressure sewage pump anti-retreat pad of improving structural strength, comprising: anti-retreat washer, first shaft hole is processed in the middle, the end of anti-retreat washer one side is equipped with first slot, the end of anti-retreat washer other side is equipped with second slot;Anti-retreat washer and anti-retreat washer are installed between impeller and the drive shaft of pump body, and the tight effect is good, to avoid the phenomenon of skidding, and first fastening buckle and second fastening buckle are bent outward, stick on the side plane of bolt, bolt is positioned and fixed, bolt is not prone to displacement when being impacted or vibrated by external force, the fastening of connection between impeller and drive shaft can be effectively guaranteed The durability of, when high-pressure sewage pump high-speed operation, impeller and drive shaft synchronous operation, bolt cannot be loosened to cause failure and stop, improve structural strength, so that it can work stably.

Description

Technical Field

[0001] This utility model relates to the field of anti-reverse pad technology for high-pressure sewage pumps, and in particular to an anti-reverse pad for high-pressure sewage pumps that improves structural strength. Background Technology

[0002] The high-pressure design of the internal cavity of the high-pressure sewage pump requires high pressure. The existing anti-slip pads slip when they are tightened. The high-speed rotation and vibration of the impeller and shaft cause the bolts to loosen, resulting in damage to the pump parts and shutdown.

[0003] To address the problems existing in the prior art, it is necessary to research and design a high-pressure sewage pump anti-reverse pad assembly to improve structural strength, thereby overcoming the problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to provide a high-pressure sewage pump anti-slip pad that improves structural strength. This anti-slip pad solves the problem that existing anti-slip pads slip when tightened, and that the high-speed rotation and vibration of the impeller and shaft can cause bolts to loosen, leading to malfunctions and damage to the pump components, resulting in shutdown.

[0005] This utility model provides a backstop pad for a high-pressure sewage pump to improve structural strength, comprising: A backstop washer has a first shaft hole machined in the middle, a first slot is provided on one side of the end of the backstop washer, and a second slot is provided on the other side of the end of the backstop washer. A backstop washer has a second shaft hole machined in the middle. One side of the backstop washer is provided with a foldable first backstop buckle, and the other side of the backstop washer is provided with a foldable second backstop buckle. The first backstop buckle and the second backstop buckle are respectively provided to extend outward along the edge of the backstop washer. One side of the anti-reverse washer is mounted on the anti-reverse washer, the first anti-reverse buckle is inserted into the second slot, and the second anti-reverse buckle is inserted into the first slot. One side of the anti-reverse gasket is provided with a foldable first fastening buckle, and the other side of the anti-reverse gasket is provided with a foldable second fastening buckle.

[0006] Preferably, the first fastener has a first groove and the second fastener has a second groove.

[0007] Preferably, a backstop plate is provided in front of the backstop gasket, and limit pins are fixedly connected to the four corners of the end face of the backstop plate, and limit holes are respectively opened at the four corners of the end face of the backstop gasket.

[0008] Preferably, a first reinforcing rib is provided on the contact surface between the first anti-retraction buckle and the second slot; The second anti-reverse latch has a second reinforcing rib on the contact surface with the first slot.

[0009] Preferably, the first fastener and the second fastener are arranged perpendicularly.

[0010] Preferably, the first anti-reverse buckle, the second anti-reverse buckle, and the anti-reverse pad are an integral structure.

[0011] Preferably, the first fastener, the second fastener, and the anti-reverse washer are an integral structure.

[0012] Preferably, the anti-reverse plate is welded to one side of the anti-reverse gasket, and a third axial hole is machined in the middle of the anti-reverse plate.

[0013] This utility model provides a backstop pad for high-pressure sewage pumps to improve structural strength: The tightly assembled anti-slip washers and anti-slip shims are installed between the impeller and the drive shaft of the pump body, ensuring a good fastening effect and preventing slippage. The first and second fastening buckles are bent outwards and attached to the side plane of the bolt to position and fix the bolt, making it less likely to shift when subjected to external impact or vibration. This effectively ensures the tightness and durability of the connection between the impeller and the drive shaft. When the high-pressure sewage pump is running at high speed, the impeller and drive shaft operate synchronously, and the bolts will not loosen, causing malfunctions and shutdowns. This improves structural strength and ensures stable operation. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the anti-reverse washer, anti-reverse gasket, and anti-reverse plate of this utility model; Figure 3 This is a schematic diagram of the structure of the anti-retraction pad, the first anti-retraction buckle, and the second anti-retraction buckle of this utility model; Figure 4 This is a schematic diagram of the structure of the anti-retraction gasket, the first fastening buckle, and the second fastening buckle of this utility model; Figure 5 This is a schematic diagram of the structure of the stop plate, the third shaft hole, and the limiting pin of this utility model; Figure 6This is a schematic diagram of the structure of the anti-retraction washer, the first slot, and the second slot of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Anti-reverse washer; 2. First shaft hole; 3. First slot; 4. Second slot; 5. Anti-reverse washer; 6. Second shaft hole; 7. First anti-reverse buckle; 8. Second anti-reverse buckle; 9. First fastening buckle; 10. Second fastening buckle; 11. Anti-reverse plate; 12. Third shaft hole; 13. Limit pin; 14. Limit hole; 15. First groove; 16. Second groove; 17. First reinforcing rib; 18. Second reinforcing rib. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model.

[0019] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this embodiment, as Figure 1 , Figure 2, Figure 3 , Figure 4 and Figure 6 As shown, a backlash preventer for a high-pressure sewage pump with improved structural strength includes: a backlash preventer 1 with a first shaft hole 2 machined in the middle, a first slot 3 on one end of the backlash preventer 1, and a second slot 4 on the other end of the backlash preventer 1; a backlash preventer 5 with a second shaft hole 6 machined in the middle, a foldable first anti-backlash buckle 7 on one side of the backlash preventer 5, and a foldable second anti-backlash buckle 8 on the other side of the backlash preventer 5, the first anti-backlash buckle 7 and the second anti-backlash buckle 8 extending outward along the edge of the backlash preventer 5 respectively; one side of the backlash preventer 5 is mounted on the backlash preventer 1, the first anti-backlash buckle 7 is inserted into the second slot 4, and the second anti-backlash buckle 8 is inserted into the first slot 3; one side of the backlash preventer 5 is provided with a foldable first fastening buckle 9, and the other side of the backlash preventer 5 is provided with a foldable second fastening buckle 10.

[0021] Therefore, the materials of the anti-reverse washer 1, anti-reverse washer 5, and two anti-reverse buckles and two fastening buckles can be selected according to the actual use. The first shaft hole 2 and the second shaft hole 6 are the bolt holes for connecting the pump shaft and the impeller of the high-pressure sewage pump. The size of the holes depends on the size of the bolts used on site. No specific limit is made here. The anti-reverse washer 1 and the anti-reverse washer 5 are used together. During installation, the two slots are connected to the keyways provided in the mounting through holes on the external impeller. The first anti-recoil buckle 7 is inserted into the second slot 4 and extends into the keyway. Similarly, the second anti-recoil buckle 8 is inserted into the first slot 3 and extends into the keyway. During assembly, the first fastening buckle 9 and the second fastening buckle 10 are bent and pressed tightly against the bolt connection side, and then attached to the side plane of the bolt to position and fix the bolt. The combined use of the two anti-reverse buckles and the two fastening buckles increases the clamping force between the anti-reverse washer 5 and the anti-reverse washer 1 and the bolt, effectively preventing the bolt from loosening and ensuring the tightness of the connection between the impeller and the high-pressure sewage pump shaft.

[0022] In some embodiments, such as Figure 1 , 2 As shown in Figure 3, the first fastener 9 has a first groove 15 machined on it, and the second fastener 10 has a second groove 16 machined on it. Specifically, when the first fastening buckle 9 and the second fastening buckle 10 are bent and pressed against the side of the bolt connection and attached to the side plane of the bolt, the first groove 15 increases the gripping force between the first fastening buckle 9 and the side of the bolt. Similarly, the second groove 16 increases the gripping force between the second fastening buckle 10 and the side of the bolt, making the bolt positioning and fixing more stable. The number of grooves is not specifically limited.

[0023] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and 5 As shown, a backstop plate 11 is provided in front of the backstop shim 5. Limit pins 13 are fixedly connected to the four corners of the end face of the backstop plate 11, and limit holes 14 are provided at the four corners of the end face of the backstop shim 5. Specifically, before assembling the anti-reverse washer 5 and the anti-reverse plate 11, the anti-reverse washer 5 and the hole on the anti-reverse plate 11 can be aligned by the cooperation of the limiting pin 13 and the limiting hole 14 to complete the positioning assembly. The design of the anti-reverse plate 11 is to avoid the anti-reverse washer 5 from directly contacting the bolt's tightening surface and reduce wear.

[0024] In some embodiments, such as Figure 1 As shown, a first reinforcing rib 17 is provided on the contact surface between the first anti-retraction buckle 7 and the second slot 4; A second reinforcing rib 18 is provided on the contact surface between the second anti-reverse latch 8 and the first slot 3.

[0025] Specifically, the reinforcing rib is triangular in shape, and the anti-return buckle is connected to the slot by welding on both sides. The reinforcing rib is welded to the connection surface between the anti-return buckle and the slot to make the anti-return buckle more secure in the slot.

[0026] In some embodiments, such as Figure 1-4 As shown, the first fastening buckle 9 and the second fastening buckle 10 are set perpendicularly; The first anti-reverse buckle 7, the second anti-reverse buckle 8, and the anti-reverse pad 5 are an integral structure; The first fastener 9, the second fastener 10, and the anti-reverse washer 5 are an integral structure; The anti-reverse plate 11 is welded to one side of the anti-reverse gasket 5, and the anti-reverse plate 11 has a third shaft hole 12 machined in the middle.

[0027] It should be noted that: It has an integrated structure. Compact structure: The integrated design reduces connecting parts and saves installation space.

[0028] Strong sealing: The overall structure effectively prevents sewage leakage and odor spread.

[0029] Easy to maintain: No complicated connections, low failure rate and easy to repair.

[0030] High durability: The integrated structure reduces mechanical wear and extends service life.

[0031] The anti-reverse plate 11 and the anti-reverse gasket 5 adopt self-fusion welding technology, which is a high-efficiency and high-strength welding technology with fast welding speed, high weld joint strength and smooth weld point; The first shaft hole 2, the second shaft hole 6, and the third shaft hole 12 have the same size and are smaller than the diameter of the bolt nut, so as to prevent the bolt nut from coming off the anti-reverse plate 11 and enhance the sealing of the structure.

[0032] The working principle of this application is illustrated below with a preferred embodiment: During assembly, the anti-reverse pad 5 is first attached to the anti-reverse washer 1 and welded together. Then, the first anti-reverse buckle 7 is bent and inserted into the second slot 4 on the anti-reverse washer 1. At the same time, the second anti-reverse buckle 8 is bent and inserted into the first slot 3. Then, welding is performed. The first reinforcing rib 17 is welded to the contact surface between the first anti-reverse buckle 7 and the second slot 4, and the second reinforcing rib 18 is welded to the contact surface between the second anti-reverse buckle 8 and the first slot 3. Through the cooperation of the limiting pin 13 and the limiting hole 14, the anti-reverse pad 5 can be aligned with the shaft hole on the anti-reverse plate 11 to complete the positioning spot welding connection. During installation, the anti-reverse washer 1 is manually attached to the external impeller. At this time, the first anti-reverse buckle 7 extends into the keyway of the impeller, and similarly, the second anti-reverse buckle 8 extends into the keyway of the impeller. Then, the external bolt is passed through the third shaft hole 12, the second shaft hole 6, and the first shaft hole 2 from the outside to the inside, and threaded into the pre-reserved thread groove on the external high-pressure sewage pump shaft. The bolt nut is tightened on the anti-reverse plate 11. Then, the first fastening buckle 9 and the second fastening buckle 10 are bent outward and attached to the side plane of the bolt, and the bolt is fixed. The first groove 15 increases the gripping force between the first fastening buckle 9 and the side of the bolt, and similarly, the second groove 16 increases the gripping force between the second fastening buckle 10 and the side of the bolt, making the bolt positioning and fixing more stable. Advantageously, when the bolt is subjected to external impact or vibration, it is not easy to displace, which can effectively ensure the tightness and durability of the connection between the impeller and the drive shaft. When the high-pressure sewage pump is running at high speed, the impeller and the drive shaft run synchronously, and the bolt will not loosen and cause failure, thus improving the structural strength and enabling stable operation.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A backstop pad for a high-pressure sewage pump to improve structural strength, characterized in that, include: A backstop washer (1) has a first shaft hole (2) machined in the middle, a first slot (3) is provided on one side of the end of the backstop washer (1), and a second slot (4) is provided on the other side of the end of the backstop washer (1). The anti-reverse gasket (5) has a second shaft hole (6) machined in the middle. One side of the anti-reverse gasket (5) is provided with a foldable first anti-reverse buckle (7), and the other side of the anti-reverse gasket (5) is provided with a foldable second anti-reverse buckle (8). The first anti-reverse buckle (7) and the second anti-reverse buckle (8) are respectively arranged to extend outward along the edge of the anti-reverse gasket (5). One side of the anti-reverse washer (5) is mounted on the anti-reverse washer (1), the first anti-reverse buckle (7) is inserted into the second slot (4), and the second anti-reverse buckle (8) is inserted into the first slot (3); One side of the anti-reverse pad (5) is provided with a foldable first fastening buckle (9), and the other side of the anti-reverse pad (5) is provided with a foldable second fastening buckle (10).

2. The anti-reverse pad for high-pressure sewage pumps with improved structural strength according to claim 1, characterized in that, The first fastener (9) has a first groove (15) and the second fastener (10) has a second groove (16).

3. The anti-reverse pad for high-pressure sewage pumps with improved structural strength according to claim 1, characterized in that, A backstop plate (11) is provided in front of the backstop gasket (5). Limit pins (13) are fixedly connected to the four corners of the end face of the backstop plate (11). Limit holes (14) are opened at the four corners of the end face of the backstop gasket (5).

4. The anti-reverse pad for high-pressure sewage pumps with improved structural strength according to claim 1, characterized in that, The first anti-return buckle (7) and the second slot (4) are provided with a first reinforcing rib (17); The second anti-return buckle (8) is provided with a second reinforcing rib (18) on the contact surface between the second anti-return buckle (8) and the first slot (3).

5. The anti-reverse pad for a high-pressure sewage pump with improved structural strength according to claim 1, characterized in that, The first fastener (9) and the second fastener (10) are arranged perpendicularly.

6. The anti-reverse pad for a high-pressure sewage pump with improved structural strength according to claim 1, characterized in that, The first anti-reverse buckle (7), the second anti-reverse buckle (8), and the anti-reverse pad (5) are an integral structure.

7. The anti-reverse pad for a high-pressure sewage pump with improved structural strength according to claim 1, characterized in that, The first fastener (9), the second fastener (10), and the anti-reverse pad (5) are an integral structure.

8. The anti-reverse pad for a high-pressure sewage pump with improved structural strength according to claim 3, characterized in that, The anti-reverse plate (11) is welded to one side of the anti-reverse gasket (5), and the anti-reverse plate (11) has a third shaft hole (12) machined in the middle.

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