CN217354931U - Elastic vibration reduction structure and booster pump - Google Patents

Abstract

The embodiment of the utility model discloses an elastic vibration damping structure, which comprises a bracket, a bottom plate and a plurality of buffer structures, wherein each buffer structure comprises a screw, a vibration damping pad, a vibration damping spring and a fastening nut; the vibration damping pad is mounted on the support, and the screw sequentially penetrates through the vibration damping pad, the support, the vibration damping spring and the bottom plate and is connected with the fastening nut; the damping spring is in a compression state, one end of the damping spring is abutted to the damping pad, and the other end of the damping spring is abutted to the bottom plate. The utility model relates to elasticity damping structure, buffer structure increase damping spring on the basis of original damping pad, and the vibrations that the buffering water pump during operation produced reduce the noise that vibrations caused.

Description

Elastic vibration reduction structure and booster pump

Technical Field

The utility model relates to a booster pump technical field especially relates to an elasticity damping structure and booster pump.

Background

When the booster pump works, the booster pump is filled with liquid, then the centrifugal pump is started, the impeller rotates rapidly, the blades of the impeller drive the liquid to rotate, the liquid flows to the outer edge of the impeller by means of inertia when rotating, meanwhile, the impeller sucks the liquid from the suction chamber, in the process, the liquid in the impeller flows around the blades, the liquid acts on the blades by a lifting force in the flowing motion, in turn, the blades act on the liquid by a force which is equal to the lifting force in magnitude and opposite to the lifting force in direction, the force acts on the liquid, the liquid obtains energy and flows out of the impeller, and at the moment, the kinetic energy and the pressure energy of the liquid are increased.

When the impeller and the motor shaft rotate rapidly, the booster pump can generate vibration, and along with the improvement of living standard, a low-frequency noise sound source appears in a resident building again and again, and particularly, low-frequency noise generated when a high-rise building pump room operates causes little influence on the living health of residents. The noise of the booster pump has strong penetrating power to buildings, and if the booster pump is in a noise environment for a long time, adverse symptoms such as neurasthenia, insomnia, headache and the like are easy to appear. Therefore, the noise reduction process of the booster pump is required.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an elasticity damping structure and booster pump for solve among the prior art problem that the booster pump noise is big. In order to achieve one or part or all of the above purposes or other purposes, the utility model provides an elastic damping structure, which comprises a bracket, a bottom plate and a plurality of damping structures, wherein each damping structure comprises a screw, a damping pad, a damping spring and a fastening nut; the vibration damping pad is arranged on the support, and the screw penetrates through the vibration damping pad, the support, the vibration damping spring and the bottom plate in sequence and is connected with the fastening nut; the damping spring is in a compression state, one end of the damping spring is abutted to the damping pad, and the other end of the damping spring is abutted to the bottom plate.

Furthermore, the middle part of the bracket is arc-shaped, and the arc opening is upward.

Furthermore, the support is provided with an open slot, the damping pad is provided with an annular groove, and the open slot is matched with the annular groove.

Furthermore, the number of the buffer structures is four, and the buffer structures are distributed on the bottom plate in a rectangular shape.

Further, the bottom plate is provided with a through hole, and the screw penetrates through the through hole and is screwed with the fastening nut.

Further, the vibration reduction structure includes a housing, and the housing is connected to the bracket.

Further, the damping pad is provided with a circular hole, the circular hole penetrates through the damping pad, and the screw penetrates through the circular hole.

Further, the elastic vibration reduction structure comprises a first screw, the support is provided with a waist-shaped groove, the shell is provided with a threaded hole, and the first screw penetrates through the waist-shaped groove and is screwed with the threaded hole.

Further, the vibration damping pad is made of a cushioning material.

Further, the booster pump comprises the elastic damping structure.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the utility model provides an elasticity damping structure, buffer structure increase damping spring on the basis of original damping pad, and the vibrations that the buffering water pump during operation produced reduce the noise that vibrations caused.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the devices shown in the drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural diagram of an elastic damping structure in an embodiment of the present invention.

Fig. 2 is an exploded view of an elastic damping structure according to an embodiment of the present invention.

Fig. 3 is a schematic view of another perspective structure of the elastic damping structure according to an embodiment of the present invention.

Fig. 4 is a sectional view of an elastic damping structure in an embodiment of the present invention.

Reference numerals:

the damping device comprises a support 1, an open groove 11, a kidney-shaped groove 12, a base plate 2, a through hole 21, a damping structure 3, a screw 31, a damping pad 32, an annular groove 321, a circular hole 322, a damping spring 33, a fastening nut 34, a shell 4 and a threaded hole 41.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, the utility model provides an elastic damping structure, which comprises a bracket 1, a bottom plate 2 and a plurality of buffer structures 3, wherein each buffer structure 3 comprises a screw 31, a damping pad 32, a damping spring 33 and a fastening nut 34; the damping pad 32 is arranged on the bracket 1, and the screw 31 sequentially passes through the damping pad 32, the bracket 1, the damping spring 33 and the base plate 2 and is connected with the fastening nut 34; the damper spring 33 is in a compressed state, and one end of the damper spring 33 abuts against the damper pad 32 and the other end abuts against the base plate 2.

It can be understood that the elastic damping structure in the present embodiment is mainly applied to the water pump. The bracket 1 is mainly used for supporting a pump body, and the damping pad 32 and the damping spring 33 are mainly used for relieving impact force, vibration and the like. The screws 31 primarily fix the bracket 1 to the base plate 2. When the pump works, the pump can generate vibration, and the vibration can make noise. In order to reduce noise, an elastic vibration damping structure is additionally arranged. The elastic damping structure must have a damping element, in this embodiment, the damping pad 32 and the damping spring 33 serve as a damping element. When the pump works, the rotor continuously rotates around the stator, and vibration is generated under the high-speed rotation state of the rotor. And the vibration is transmitted to the outside through the connected parts. When the pump is provided with an elastic damping structure, the vibration is transmitted to the bracket 1, and the bracket 1 transmits the vibration to the damping pad 32 and the damping spring 33. The vibration damping pad 32 can absorb part of the vibration, and the vibration is secondarily absorbed by the vibration damping spring 33. The shock is mostly absorbed. The vibration is absorbed, and the noise generated when the pump works can be reduced. The cushion structure 3 is mounted, the damper spring 33 is in a compressed state, and the damper spring 33 can be further compressed or extended. When the booster pump works, the vibration can be buffered by the damping spring 33. In one embodiment, the bottom of the damping pad 32 is provided with an inclined chamfer, the middle of the damping pad 32 is provided with an annular groove, and the bracket 1 is provided with a mounting hole. When the damping pad 32 is installed, the inclined chamfer of the damping pad 32 firstly contacts with the bracket 1, the damping pad 32 is forcibly plugged into the bracket 1 from top to bottom, and the annular groove is matched with the installation hole. The damping pad 32 is mounted to the bracket 1. When the booster pump is stressed, the vibration damping pad 32 plays a role in damping vibration. In other embodiments, the damping pads 32 are ring-shaped, and holes are formed in the middle, and the screws 31 penetrate through one damping pad 32, then penetrate through the bracket 1, and then penetrate through the other damping pad 32. The bracket 1 is positioned between two pieces of damping pads 32. When the booster pump works, the two damping pads 32 buffer together, and the damping pads 32 play a role in buffering. When the screw 31 passes through the damping pad 32, the bracket 1, the damping spring 33 and the base plate 2 and is finally mounted with the fixing nut 34, a flat pad and an elastic pad may be additionally arranged between the base plate 2 and the fixing nut 32. The spring washer is inherently resilient and is compressed during tightening of the fastening nut 34. The fixing nut 34 is subjected to pretightening force, so that the fixing nut 34 is not easy to fall off in the using process. Because the retaining nut 34 is pre-tensioned by the spring washer. When the booster pump works, the elastic damping structure is vibrated, the buffer structure 3 is vibrated, and the fixing nut 34 is vibrated for a long time and is easy to fall off from the screw 31. The elastic pad gives a pre-tightening force to the fixing nut 34, and the fixing nut 34 is not easy to fall off from the screw 31. The elastic pad can prevent the fixing nut 34 from falling off and facilitate the disassembly and assembly of the screw 31. In some situations where the screw 31 is not frequently removed, the threaded portion of the screw 31 may be threaded with a threaded glue. After the screw 31 is provided with the screw glue, when the screw glue is not dried, the fixing nut 34 is immediately installed, the fixing nut 34 is screwed into the screw 31, the screwing part of the fixing nut 34 and the screw 31 is screwed, and the screw glue connects the fixing screw 31 and the screw 31. The screw 31 is screwed with the fixing nut 34, so that the fixing nut is not easy to fall off from the screw 31. This has the disadvantage that the fixing nut 34 cannot be easily removed from the screw 31 when this is required.

Further, as shown in fig. 1 and 2, the middle of the bracket 1 is arc-shaped, and the arc opening is upward. The middle part of the bracket 1 is connected with the pump body and mainly bears the weight of the pump body. The periphery of the pump body is arc-shaped, and the pump body is matched with the middle part of the bracket 1, so that the pump body is arranged on the bracket 1 and is not easy to fall off. The middle of the bracket 1 provides a support for the pump body. The middle part of the bracket 1 is acted by the pump body. The bracket 1 is symmetrical left and right, the left edge and the right edge of the circular arc downwards extend at a certain angle, and the rear edge is parallel to the bottom plate 2. The screw 31 is not easily detached from the bracket 1. The bracket 1 can buffer the vibration of the water pump. The bracket 1 is bent at a certain angle. Thus, the bracket 1 can also absorb part of the shock. In the use process of the elastic vibration reduction structure, the pump body is arranged in the bracket 1, and when the water pump works, the water pump can generate vibration. The bracket 1 has certain elasticity, and within the elastic limit, the bracket 1 absorbs the vibration generated by the water pump.

Further, as shown in fig. 1, the bracket 1 is provided with an open groove 11, the damping pad 32 is provided with an annular groove 321, and the open groove 11 is engaged with the annular groove 321. The damping pad 32 is installed on the bracket 1, and the opening groove 11 is an installation groove of the damping pad 32. The damping pad 32 is installed on the open groove 11. When the damping pad 32 is installed, the annular groove 321 is installed from the opening of the opening groove 11 and installed along the edge of the opening groove 11. In this embodiment, the bracket 1 is equipped with four damping pads 32. The bracket 1 is provided with four open slots 11. The left side of the bracket 1 is provided with two open slots 11, and the open slot 11 at the left side is opened leftwards; two open slots 11 are arranged on the right side of the bracket 1, and the open slot 11 on the right side is opened towards the right. The four vibration damping pads 32 can enable the pump body to be stably installed on the bottom plate 2, and the pump body is even in stress and not prone to inclination. The pump exerts a left obliquely downward force and a right obliquely downward force on the bracket 1. Therefore, the left row of screws 31 receives a horizontal leftward component force applied by the bracket 1, and the left row of screws 31 is not easily detached from the left open groove 11. The right row of screws 31 receive the horizontal component force applied by the bracket 1, and the right row of screws 31 are not easy to fall off from the right opening groove 11.

Further, as shown in fig. 1 and fig. 2, the number of the buffer structures 3 is four, and the buffer structures 3 are distributed in the bottom plate 2 in a rectangular shape. The four buffer structures 3 are distributed in a rectangular shape, can fully bear the gravity of the pump body and fully absorb the vibration of the pump body. When the pump works, the vibration generated by the pump body is absorbed by the four buffer structures 3. The bottom plate 2 is a mounting plate of the pump, and the buffer structures 3 are distributed in a rectangular shape, so that the pump body can be stressed uniformly. When the vibration is generated, the water pump is not easy to rollover. The shape of the water pump is similar to a cylinder, and the water pump is long. The buffer structure 3 is distributed in a rectangular shape, so that the stress of the water pump is stable. The vibration generated when the water pump works is absorbed by the four buffer structures 3. The vibration is irregular vibration, which easily causes the unbalanced stress of the water pump. The water pump is easy to turn on one side under frequent vibration. The 3 equilibrium of buffer structure that four rectangles distribute is than higher, and during the water pump vibrations, most vibrations are cushioned by buffer structure 3, and in buffer structure 3's elasticity limit, the water pump is generally difficult for turning on one's side.

Further, as shown in fig. 3, the bottom plate 2 is provided with a through hole 21, and the screw 31 passes through the through hole 21 and is screwed with the fastening nut 34. In this embodiment, there are four screws 31 in total, and the four screws 31 are distributed in a rectangular shape at four corners of the bottom plate 2. Each screw 31 passes through four respective through holes 21. The screw 31 passes through the through hole 21 and is screwed with the fastening nut 34 to fix the cushion structure 3 to the base plate 2. In this embodiment, the buffer structure 3 is mounted on the bottom plate 2 by using the screw 31 and the fastening nut 34, so that the buffer structure 3 can be easily mounted and dismounted. When the parts of the buffer structure 3 need to be replaced, the screw 31 can be loosened to replace the damaged parts.

Further, as shown in fig. 2, the vibration damping structure includes a housing 4, and the housing 4 is connected to the bracket 1. The pump body of the water pump needs to be connected with an elastic vibration reduction structure. The pump body is fixed in the elastic vibration damping structure through the connection of the shell 4 and the bracket 1. The pump is generally heavy and needs to be firmly fixed to the support 1. The water pump is fixed in the shell 4, and the shell 4 is fixed on the bracket 1. When the water pump works, the water pump is fixed on the shell 4, and the water pump cannot fall off due to vibration.

Further, as shown in fig. 4, the damping pad 32 is provided with a circular hole 322, the circular hole 322 penetrates through the damping pad 32, and the screw 31 penetrates through the circular hole 322. The vibration-damping pad 32 is attached to the screw 31 in addition to the bracket 1. The screw 31 passes through the circular hole 322, and the damping pad 32 is mounted to the screw 31. The vibration damping pad 32 is attached to the screw 31 and is not easily detached.

Further, as shown in fig. 3, the elastic vibration damping structure includes a first screw, the bracket 1 is provided with a waist-shaped groove 12, the housing 4 is provided with a threaded hole 41, and the first screw passes through the waist-shaped groove 12 and is screwed with the threaded hole 41. The housing 4 needs to be installed on the bracket 1, and the housing 4 is fixed on the bracket 1 by screwing the first screw with the threaded hole 41. The position of the first screw can be adjusted, the first screw penetrates through the waist-shaped groove 12, and the position of the bracket 1 can be adjusted. The waist-shaped groove 12 reserves an adjusting space for the first screw. The bracket 1 can be adjusted left and right. The first screw cannot be mounted due to errors generated during machining of the threaded hole 41. And the position of the bracket 1 is adjustable, so that the bracket 1 can be prevented from interfering with other parts. Resulting in the bracket 1 not being mounted.

Further, the vibration damping pad 32 is made of a cushioning material. The damping pad 32 needs to have elasticity to perform a damping function. In this embodiment, preferably, the cushion is wear-resistant and has good elasticity. When the damping pad 32 receives an impact force, the damping pad 32 is compressed and acts as a buffer. The damping pad 32 also functions to protect the bracket 1. The screw 31 and the bracket 1 are made of metal materials, and the metal materials are in direct rigid contact, so that resistance can be generated between parts. Rigid contact is prone to friction damage of parts. Between the contact surfaces of the bracket 1 and the screw 31, the bracket 1 and the screw 31 are spaced apart by a vibration-damping pad 32. When the booster pump is operated, the damping pad 32 is located between the screw 31 and the bracket 1.

The utility model discloses still provide a booster pump, the booster pump includes foretell elasticity damping structure, and the concrete structure of this booster pump refers to above embodiment, because this booster pump has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.

The above is only the optional embodiment of the present invention, and not therefore the scope of the present invention is limited to the claims, all of which are under the inventive concept of the present invention, the equivalent device transformation performed by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims (10)

1. An elastic vibration reduction structure is characterized by comprising a support (1), a base plate (2) and a plurality of buffer structures (3), wherein each buffer structure (3) comprises a screw (31), a vibration reduction pad (32), a vibration reduction spring (33) and a fastening nut (34); the vibration damping pad (32) is mounted on the support (1), and the screw (31) sequentially penetrates through the vibration damping pad (32), the support (1), the vibration damping spring (33) and the base plate (2) and is connected with the fastening nut (34); the damping spring (33) is in a compression state, one end of the damping spring (33) is abutted to the damping pad (32), and the other end of the damping spring is abutted to the base plate (2).

2. An elastic damping structure according to claim 1, characterised in that the middle of the bracket (1) is circular arc shaped with the opening upwards.

3. An elastic damping structure according to claim 1, characterized in that the holder (1) is provided with an open groove (11), the damping pad (32) is provided with an annular groove (321), and the open groove (11) is engaged with the annular groove (321).

4. An elastic damping structure according to claim 1, characterized in that said plurality of cushioning structures (3) is four, said cushioning structures (3) being distributed rectangularly over said base plate (2).

5. An elastic vibration-damping arrangement, as set forth in claim 1, characterized in that the base plate (2) is provided with a through hole (21), the screw (31) passing through the through hole (21) to be screwed with the fastening nut (34).

6. An elastic damping arrangement according to claim 1, characterised in that the elastic damping arrangement comprises a housing (4), the housing (4) being connected to the holder (1).

7. An elastic damping structure according to claim 1, characterized in that said damping pad (32) is provided with a circular hole (322), said circular hole (322) penetrating said damping pad (32), said screw (31) passing through said circular hole (322).

8. A resilient shock absorbing structure according to claim 6, characterized in that the resilient shock absorbing structure comprises a first screw, the bracket (1) is provided with a waist-shaped groove (12), the housing (4) is provided with a threaded hole (41), and the first screw passes through the waist-shaped groove (12) and is screwed with the threaded hole (41).

9. A resilient damping structure according to claim 1, characterized in that the damping pad (32) is made of a damping material.

10. A booster pump, characterized in that it comprises an elastic vibration damping structure as claimed in any one of claims 1 to 9.

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