CN211738391U

CN211738391U - Vibration stopping structure

Info

Publication number: CN211738391U
Application number: CN201921464770.6U
Authority: CN
Inventors: 肖家伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-10-23
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a vibration-stopping structure, which comprises an elastic tube and a non-return tube positioned in the elastic tube, one end of the elastic tube is connected with the water inlet of the pulse type water pump, the other end of the elastic tube is connected with the drainage tube, the outer diameter of the vibration stopping tube is equal to or slightly smaller than the inner diameter of the elastic tube, the middle part of the elastic tube is not deformed and has certain deformation potential, can vibrate along with the vibration of the pulse type water pump, prevent the vibration of the pulse type water pump from being transmitted to the drainage pipe, the elastic tube middle part is absorbed through producing expansion deformation the reverse hydraulic pulse that produces during the drainage of pulsed water pump makes hydraulic pulse is difficult to the conduction extremely the drainage tube, only shake the structure and can prevent the vibration conduction that the pulsed water pump produced to the device that provides the water source, the structure can produce good noise reduction effect that only shakes to the product that contains the pulsed water pump.

Description

Vibration stopping structure

Technical Field

The utility model relates to a vibration control field, specific structure of block conductive route of water pump vibration that says so.

Background

The water curtain device with the novel visual effect is provided in the Chinese patent 2017219262274, the water curtain device needs to be connected a plurality of pulsed water pumps with the water tank simultaneously, and pulsed water pump during operation can produce strong vibration, and the vibration that a plurality of pulsed water pumps worked simultaneously produces superposes on the water tank, makes the water tank produce harsh resonance noise, leads to the application scene of water curtain device is very limited, promotes the difficulty.

Disclosure of Invention

An object of the utility model is to overcome one or several kinds of defects of prior art, provide a simple structure for block the conduction process of the vibration that the pulsed water pump produced.

The pulse water pump is especially one capable of generating pulse water flow, and includes reciprocating displacement pump, motor type diaphragm pump, etc.

In order to realize the technical purpose, the utility model discloses a following technical scheme:

the utility model provides a structure, the structure contains one section elasticity pipe and is located the inside non return pipe of elasticity pipe.

The elastic tube has good elasticity and is easy to deform.

The check pipe has good rigidity and is not easy to deform.

The length of the check pipe is not less than 5 mm.

The length of the elastic tube is greater than that of the check tube.

The outer diameter of the check pipe is equal to or slightly smaller than the inner diameter of the elastic pipe.

The two ends of the elastic pipe are respectively connected with the water inlet and the drainage pipe of the pulse type water pump, the check pipe is positioned in the elastic pipe, and a certain gap is reserved between one end of the check pipe and the water inlet of the pulse type water pump.

The drainage tube is a pipeline which is communicated with the water tank and provides water source, and the shape of the drainage tube can be different forms such as a straight tube, an elbow tube and the like.

The inner diameter of the elastic pipe is equal to or slightly smaller than the outer diameter of a water inlet of the pulse type water pump.

The inner diameter of the elastic tube is equal to or slightly smaller than the outer diameter of the drainage tube.

In the device disclosed in patent 2017219262274, the inlet of a plurality of pulse water pumps are connected with a plurality of drainage tubes on the water tank through a section of connecting pipe. The pulse type water pump is mainly a reciprocating displacement pump and a motor type diaphragm pump, the internal structure of the water pump comprises a water inlet valve and a water outlet valve, and the water pump has self-absorption capacity. The pulse type water pump generates vibration from two sources, namely, the pulse type water pump generates periodic vibration integrally due to the movement of an internal reciprocating component or the vibration caused by the rotation of a motor and transmits the vibration to the drainage tube and the water tank in sequence through the connecting tube; and when the pulse type water pump is switched from the water suction action to the water discharge action, the liquid in the drainage tube still keeps the original movement trend and collides with the hydraulic pulse in the opposite direction to cause the drainage tube to generate severe periodic vibration, and the periodic vibration is rapidly transmitted to the water tank along the drainage tube because the drainage tube and the water tank are in rigid connection. Because the same power supply is used, a plurality of groups of vibrations generated by a plurality of pulse type water pumps positioned on the same water tank have the same frequency and phase, and the plurality of groups of vibrations are respectively transmitted to the water tank along the drainage tube, so that the water tank material generates resonance, and then generates larger noise.

The structure of the utility model comprises an elastic tube, one end of the elastic tube is connected with the drainage tube, the other end is connected with the water inlet of the pulse type water pump, the check tube is positioned in the elastic tube, a certain distance exists between the water inlet of the pulse type water pump and the drainage tube, the outer diameter of the check tube is equal to or slightly smaller than the inner diameter of the elastic tube, the elastic tube between the water inlet of the pulse type water pump and the drainage tube keeps a loose state and has larger deformation potential, when the pulse type water pump vibrates, the elastic tube deforms along with the vibration of the pulse type water pump, the deformation comprises transverse swinging and longitudinal compression and stretching, the closer part of the elastic tube to the water inlet of the pulse type water pump is larger, the closer part of the elastic tube to the water inlet of the pulse type water pump is smaller, therefore, the part of the elastic tube connected with the drainage tube, the elastic tube is made of soft materials, the efficiency is low when the soft materials transmit vibration to the rigid drainage tube, and only the drainage tube can generate forced vibration with small amplitude; when the hydraulic pulse reaches the gap, because the elastic tube positioned on the outer layer of the check tube has larger deformation potential, the elastic tube is rapidly expanded along with the expansion of the hydraulic pulse, the part of the elastic tube, which is closer to the water inlet of the pulse type water pump, is expanded to be larger, the part of the elastic tube, which is closer to the drainage tube, is deformed to be smaller, and at the moment, an energy storage chamber is formed between the inner wall of the elastic tube and the outer wall of the check tube, part of the liquid is pressed into the energy storage chamber, and most of the potential energy and the kinetic energy of the hydraulic pulse are temporarily stored in the deformation generated by the elastic tube; when the pulse type water pump absorbs water, negative pressure is formed near a water inlet of the pulse type water pump, the elastic pipe shrinks inwards from the expansion state until the check pipe prevents the check pipe from continuously deforming inwards, liquid in the energy storage chamber is absorbed into the pulse type water pump, and the structure formed by the elastic pipe and the check pipe prevents hydraulic pulse from being transmitted to the drainage pipe. Therefore, the structure has the ability of blocking the conduction process of the vibration that pulsed water pump produced.

Do not during the check pipe, the elastic tube that has certain length also can block the vibration that the pulsed water pump produced through deformation to the drainage tube conduction, but the pulsed water pump will continue to inwards produce deformation after recovering original state when absorbing water, produces the compensatory action to the volume that absorbs water of pulsed water pump, makes the actual water yield that the pulsed water pump absorbed reduce, the structure that elastic tube and check pipe constitute can not lead to in the damping vibration the flow of pulsed water pump reduces.

The length of the non-return pipe is not less than 5mm, correspondingly, the longitudinal length of the energy storage chamber is not less than 5mm, most of reverse hydraulic pulses generated by a water inlet valve of the pulse type water pump with the flow rate less than 800ml per minute can be accommodated, the pulse type water pump with the flow rate greater than the flow rate can generate the hydraulic pulses with a larger scale, but the pulse type water pump with the flow rate greater than the flow rate generally has a larger water inlet, the elastic pipe and the non-return pipe with the larger diameter need to be equipped, the capacity of the energy storage chamber after deformation is equivalently increased, and in practical application, the lengths of the elastic pipe and the non-return pipe can be properly prolonged for convenience in installation. When the length of the check pipe is too small, the length of the matched elastic pipe is also short, and the buffering effect is poor.

And a certain gap exists between one end of the check pipe and the water inlet of the pulse type water pump, the gap is equivalent to the inlet of the energy storage chamber, when the device is actually installed, the distance between one end of the check pipe and the water inlet of the pulse type water pump is firstly 1mm, and the distance can be increased and decreased in a small range during debugging so as to obtain a satisfactory effect. When the clearance is too large, the elastic pipe at the periphery of the clearance is deformed inwards when the pulse type water pump absorbs water, so that the actual water absorption capacity of the pulse type water pump is reduced.

The structure of only shaking have good effect of blocking to the vibration that the pulsed water pump produced, its structure is very simple, occupation space is minimum, has better application prospect in the product that uses the pulsed water pump such as water art view product and water dispenser, coffee machine. The small-size reciprocating type water pump drive frequency in the civilian product is mostly unanimous (50Hz) with municipal power consumption, and the small-size diaphragm pump rotational speed that products such as automatic water feeding tea table used is mostly below 200 circles per second, consequently, the vibration that most pulsed water pump produced all is low frequency vibration, and common sound insulation method inefficiency, and sound-proof material need occupy great space, is unfavorable for product appearance design, uses the above-mentioned problem of solution that the structure can be better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an internal structure of an embodiment of the present invention.

Fig. 3 is a schematic view of an embodiment of the present invention.

The reference numerals are explained below:

1-a non-return pipe, 2-an elastic pipe, 3-a drainage pipe, 4-a water tank, 5-a pulse type water pump, 6-a water inlet of the water pump, and 7-a water outlet pipe of the water tank.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. The present invention can be realized in various forms, and is not limited to the embodiment described in the present embodiment. The following detailed description is provided to facilitate a clearer understanding of the present disclosure, and words indicating directions such as up, down, left, right, etc., are given only for the positions of the illustrated structures in the corresponding drawings. One skilled in the relevant art will recognize, however, that one or more of the specific details can be omitted, or other methods, components, or materials can be used. In some instances, some embodiments are not described or not described in detail. The term "connect", unless otherwise indicated, includes both direct and indirect connections.

Fig. 1 is a schematic view of the vibration stopping structure of the present invention. As shown in fig. 1, the structure of the present invention includes a non-return pipe 1 and an elastic pipe 2, the non-return pipe 1 is located inside the elastic pipe 2, the length of the elastic pipe 2 is greater than the non-return pipe 1, and the outer diameter of the non-return pipe 1 is equal to or slightly smaller than the inner diameter of the elastic pipe 2.

Fig. 2 is a schematic diagram of an embodiment of the structure of the present invention. As shown in fig. 2, the structure of the present invention includes an elastic tube 2 and a check tube 1, two ends of the elastic tube 2 are respectively connected to a water inlet (not shown in fig. 2) of a pulse type water pump and a drainage tube 3, the check tube 1 is located inside the elastic tube 2, an outer diameter of the check tube 1 is equal to or slightly smaller than an inner diameter of the elastic tube 2, an outer diameter of the drainage tube 3 is equal to or larger than the inner diameter of the elastic tube 2, the drainage tube 3 is connected to a water source providing device (not shown in fig. 2), the check tube 1 and the drainage tube 3 can only be close to each other without substantial connection, the check tube 1 can be fixed on the drainage tube 3 by welding, bonding, nesting, screwing or by a milling machine, casting to make a structure in which the check tube 1 and the drainage tube 3 are connected into a whole, the check tube 1 and the drainage tube 3 shown in fig. 2 are of an integrated structure, and the, the reducing parts of the check pipe 1 and the drainage pipe 3 are in transition by gradually changing slopes, in most cases, the drainage pipe 3 is an inherent component of the device for providing water source and plays a role in communicating the water source, the drainage pipe 3 can be in various forms, and in actual use, the outer diameter of the drainage pipe 3 is slightly larger than the inner diameter of the elastic pipe 2, so that better water tightness is formed.

Fig. 3 is a schematic view of an embodiment of the structure of the present invention. This embodiment shows the specific application of the structure of the present invention in the water curtain device of patent 2017219262274, in this embodiment, the elastic tube 2 is made of silica gel and has a better deformation ability, two ends of the elastic tube 2 are respectively connected to the water inlet 6 of the water pump and one end of the water outlet 7 of the water tank, the other end of the water outlet 7 of the water tank is connected to the water tank 4, the check tube 1 is located inside the elastic tube 2, the length of the check tube 1 is 5mm, the check tube 1 in this embodiment is not connected to the water outlet 7 of the water tank, the distance between the other end of the check tube 1 and the water inlet 6 of the water pump is about 1mm, the distance between the water inlet 6 of the water pump and the water outlet 7 of the water tank is about 6mm, the outer diameter of the check tube 1 is equal to the inner diameter of the elastic tube 2, therefore, the middle portion of the elastic tube 2 is not deformed and has a larger deformation potential, therefore, when the pulse type water pump 5 works, vibration is generated to cause the elastic pipe 2 to vibrate, the vibration amplitude of one end of the elastic pipe 2 connected with the water inlet 6 of the water pump is larger, the vibration amplitude of one end connected with the water outlet pipe 7 of the water tank is smaller, and only the water outlet pipe 7 of the water tank can generate vibration with small amplitude; as shown in fig. 2, an energy storage chamber is formed by the inner wall of the elastic tube 2 and the outer wall of the check tube 1 (when the elastic tube 2 is not deformed, the volume of the energy storage chamber is zero), a gap with a thickness of about 1mm is formed between one end of the check tube 1 and the water inlet 6 of the water pump, when the pulse type water pump 5 drains water, a hydraulic pulse generated in the resetting process of the water inlet valve (not shown) is transmitted along the water inlet 6 of the water pump to the water outlet pipe 7 of the water tank, a certain pressure is applied to the tube wall due to the compression of liquid in the front part of the hydraulic pulse, when the hydraulic pulse is transmitted to the gap between the check tube 1 and the water inlet 6 of the water pump, the gap has a larger transverse space, the elastic tube 2 outside the gap has a larger deformation potential, the pressure generated by the compressed liquid in the front part of the hydraulic pulse rapidly expands the elastic tube 2, and the, the volume of the energy storage chamber is increased, part of liquid is pressed into the energy storage chamber, the potential energy of the hydraulic pulse is released, the kinetic energy and the potential energy of the hydraulic pulse are temporarily converted into the increase of the volume of the energy storage chamber, when the pulse type water pump 5 absorbs water, negative pressure is formed near the water inlet 6 of the water pump, the liquid originally pressed into the energy storage chamber is sucked into the water inlet 6 of the water pump under the action of the contraction pressure of the pipe wall of the elastic pipe 2 and the negative pressure, and the non-return pipe 1 is a rigid pipeline, so that the elastic pipe 2 cannot continue to contract inwards after recovering a non-deformation state, and the structure formed by the elastic pipe 2 and the non-return pipe 1 absorbs and releases the energy of the hydraulic pulse generated by water drainage of the pulse type water pump 5, and vibration generated by the hydraulic pulse is prevented from being transmitted to.

Patent 2017219262274 in the device directly be connected water pump water inlet 6 with water tank delivery port 7, because the connecting pipe is shorter, there is not the deformation potentiality, lead to the most vibration of pulsed water pump 5 production finally to conduct on water tank 4, produce the resonance noise, the structure makes the vibration most of pulsed water pump 5 production blocked, can't conduct to water tank 4, has reduced the noise that the vibration produced by a wide margin, makes patent 2017219262274 the application scene of device is extended by a wide margin.

Claims

1. A vibration stopping structure comprises an elastic tube and a check tube, wherein two ends of the elastic tube are respectively connected with a water outlet and a drainage tube of a pulse type water pump, and the check tube is positioned in the elastic tube; the outer diameter of the check pipe is equal to or slightly smaller than the inner diameter of the elastic pipe; the elastic tube is elastic and easy to deform; the check pipe is rigid and is not easy to deform; the length of the check pipe is not less than 5 mm.