CN211550109U - Pump shell for self-suction jet pump - Google Patents

Abstract

The utility model relates to a pump case for from inhaling injection pump belongs to injection pump technical field, have first installing the open-ended pump case including the right side, the water inlet has been seted up in the left side of pump case, the water inlet extends the shaping to the pump case in to have the acoustic celotex pipe, and the acoustic celotex intraductal shaping sound insulation chamber, the right-hand member of acoustic celotex pipe are provided with the second installing the opening that is used for connecting the injection pump pipe, the third installing the opening that is used for connecting the injection pump nozzle is seted up to one side of acoustic celotex pipe, second installing the opening and third installing the open-ended edge all are equipped with the screw. The utility model discloses it is big effectively to solve the tradition from inhaling the jet pump noise, and the casing uses easy damage scheduling problem for a long time, and provides a pump case that has simple structure reasonable and effectively avoids from advantages such as the produced resonance noise of the interior fluid high-speed efflux of jet pump.

Description

Pump shell for self-suction jet pump

The technical field is as follows:

the utility model belongs to the technical field of the jet pump, refer in particular to a pump case for inhaling the jet pump certainly.

Background art:

at present, traditional from inhaling ejector pump is in the use, along with the high-speed injection of the interior fluid of the pump body, the water inlet can produce huge tremble for the casing of the pump body also easily produces resonance effect along with tremble, thereby causes great noise, uses the back for a long time, and the damage appears easily in the casing from inhaling ejector pump, and the casing that damages can bring bigger noise, causes the loss of the great property of user and uses to experience.

The invention content is as follows:

the utility model aims at providing a simple structure is reasonable, effectively avoids the pump case from the produced resonance noise of the high-speed efflux of suction jet pump.

The utility model discloses a realize like this:

a pump shell for a self-sucking jet pump comprises a pump shell 1 with a first mounting opening 10 on the right side, a water inlet 2 is formed in the left side of the pump shell 1, a sound insulation pipe 3 extends into the pump shell 1 from the water inlet 2, a sound insulation cavity 30 is formed in the sound insulation pipe 3, a second mounting opening 31 used for being connected with a jet pump guide pipe is arranged at the right end of the sound insulation pipe 3, a third mounting opening 32 used for being connected with a jet pump nozzle is formed in one side of the sound insulation pipe 3, and threaded mounting holes 4 are formed in the edges of the second mounting opening 31 and the third mounting opening 32.

The utility model discloses further set up to, the cross-sectional diameter of acoustic celotex pipe 3 is greater than 2 cross-sectional diameters of water inlet, and 2 eccentrics of water inlet set up in the left end of acoustic celotex pipe 3 that make progress, third installing the opening 32 is eccentric to be set up in the left end of acoustic celotex pipe 3 downwards.

The utility model discloses further set up to, the thickness of 3 pipe walls of acoustic celotex tube is less than the thickness of 1 casing of pump case.

The utility model discloses further set up to, be provided with a plurality of buffer patches 5 in the pump case 1.

Compared with the prior art, the utility model outstanding advantage is:

1. the utility model discloses a high-speed fluid tremble that the acoustic celotex pipe of independent shaping has avoided fluid to flow back from the nozzle to bring to the noise reduction, and independent acoustic celotex pipe is producing certain tremble, and it does not influence the tremble of pump case, and then difficult resonance effect that produces, thereby the production of noise reduction by a wide margin;

2. the utility model increases the aperture of the sound insulation pipe to facilitate the arrangement at the same side of the third mounting opening, has simple structure, increases the cavity volume of the fluid at the water inlet, and is not easy to cause the fluid to generate vibration, thereby reducing the noise;

3. the utility model further slightly thickens the thickness of the shell of the pump shell compared with the thickness of the wall of the sound insulation pipe, which is beneficial to the shell of the pump shell not to generate vibration and noise;

4. the utility model is provided with a plurality of buffer pieces in the pump shell, which prevents the vibration of the sound insulation pipe to a certain extent and reduces the noise;

description of the drawings:

fig. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the self-priming jet pump of the present invention:

in the figure:

1-a pump casing; 10-a first mounting opening; 2-water inlet; 3-a sound insulation pipe; 30-a sound insulation cavity; 31-a second mounting opening; 32-a third mounting opening; 4-a threaded mounting hole; 5-buffer sheet.

The specific implementation mode is as follows:

the invention will now be further described in the following with reference to specific embodiments, see fig. 1-3:

a pump shell for a self-sucking jet pump comprises a pump shell 1 with a first mounting opening 10 on the right side, a water inlet 2 is arranged on the left side of the pump shell 1, a sound insulation pipe 3 extends and forms in the pump shell 1 from the water inlet 2, a sound insulation cavity 30 forms in the sound insulation pipe 3, a second mounting opening 31 used for connecting a jet pump guide pipe is arranged at the right end of the sound insulation pipe 3, a third mounting opening 32 used for connecting a jet pump nozzle is arranged on one side of the sound insulation pipe 3, thread mounting holes 4 are respectively arranged at the edges of the second mounting opening 31 and the third mounting opening 32, after the pump shell 1 is mounted, the first mounting opening 10 can be connected with an end cover of a pump body to realize integral sealing, the second mounting opening 31 can be connected with one side of the guide pipe in a sealing manner, the third mounting opening 32 is connected with the nozzle arranged on one side of the guide pipe, and the series of structural designs enable fluid to be in the sound insulation cavity 30 before entering, the area generated by the noise is limited, and the silent operation in the pump body of the self-sucking jet pump is realized.

Preferably, the diameter of the cross section of the sound insulation pipe 3 is larger than the diameter of the cross section of the water inlet 2, the water inlet 2 is eccentrically arranged at the left end of the sound insulation pipe 3 upwards, the third mounting opening 32 is eccentrically arranged at the left end of the sound insulation pipe 3 downwards, and the sound insulation pipe with the diameter slightly larger than the diameter of the water inlet 2 is adopted, so that the sound insulation pipe 3 has a larger water storage volume, the vibration of fluid is not easy to occur, and the noise is reduced.

Preferably, the thickness of the pipe wall of the sound insulation pipe 3 is smaller than that of the shell of the pump shell 1, and the thickness of the shell is increased, so that the resonance effect caused by the high-speed flow of fluid in the pump body can be effectively prevented.

Preferably, a plurality of buffer sheets 5 are arranged in the pump shell 1, and the buffer sheets can properly weaken the vibration amplitude between the sound insulation pipe and the inner wall of the shell and reduce noise.

It is worth mentioning that the buffer sheet 5 is an elastic member, and both ends of the buffer sheet are respectively fixed to the outer wall of the sound insulation pipe and the inner wall of the housing.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims (4)

1. The pump shell for the self-sucking jet pump is characterized by comprising a pump shell (1) with a first mounting opening (10) in the right side, wherein a water inlet (2) is formed in the left side of the pump shell (1), a sound insulation pipe (3) is formed in the water inlet (2) in the pump shell (1) in an extending mode, a sound insulation cavity (30) is formed in the sound insulation pipe (3), a second mounting opening (31) used for being connected with a jet pump guide pipe is arranged at the right end of the sound insulation pipe (3), a third mounting opening (32) used for being connected with a jet pump nozzle is formed in one side of the sound insulation pipe (3), and threaded mounting holes (4) are formed in the edges of the second mounting opening (31) and the third mounting opening (32).

2. A pump casing for a self-priming jet pump according to claim 1, characterized in that the noise insulation pipe (3) has a larger cross-sectional diameter than the water inlet (2), and the water inlet (2) is eccentrically disposed upwardly at the left end of the noise insulation pipe (3), and the third mounting opening (32) is eccentrically disposed downwardly at the left end of the noise insulation pipe (3).

3. A pump housing for a self-priming pump according to claim 1, characterized in that the wall of the sound-insulating tube (3) has a smaller thickness than the housing of the pump housing (1).

4. A pump housing for a self-priming pump according to claim 1, characterized in that a number of damping discs (5) are arranged in the pump housing (1).

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