Pump with noise elimination structure

Abstract

The utility model discloses a pump with a noise elimination structure, which comprises a first shell, a second shell and a noise elimination piece, the first shell is provided with a fluid inlet hole, the second shell is provided with a fluid outlet hole, and the noise elimination piece is provided with a noise elimination hole. Wherein the first shell is provided with a first end installation part, the second shell is provided with a second end installation part, the first end installation part and the second end installation part are matched with the two ends of the silencing part respectively, the two ends of the silencing part are arranged on the first end installation part and the second end installation part respectively, and the second shell is fixedly connected to the first shell. The second shell and the first shell clamp the silencing piece, a connecting channel is defined between the first shell and the second shell, and the fluid inlet hole is communicated with the fluid output hole through the connecting channel and the silencing hole. According to the pump with the noise elimination structure, the noise elimination piece is installed stably and cannot move or fall off.

Description

Technical Field

[0001] The utility model relates to a pump, in particular to a pump with a sound-absorbing structure. Background Art

[0002] A pump capable of reducing noise is currently equipped with a muffler. The muffler is a cylindrical body with multiple muffler holes. The muffler is installed in the pump's fluid channel. When fluid passes through the muffler, it passes through the holes, canceling out the sound waves and achieving noise reduction. In such pumps, the muffler's diameter is adapted to the fluid channel, and it is directly inserted into the channel during installation. This installation is not secure and can easily shift or even fall out of the channel. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems in the prior art. To this end, the utility model provides a pump with a silencer structure, wherein the silencer is firmly installed and will not shift or fall out.

[0004] According to an embodiment of the present invention, a pump with a silencer structure includes: a first shell, provided with a fluid inlet hole; a second shell, provided with a fluid output hole; a silencer, provided with a silencer hole; wherein, the first shell is provided with a first end mounting portion, and the second shell is provided with a second end mounting portion, the first end mounting portion and the second end mounting portion are respectively adapted to the two ends of the silencer, and the two ends of the silencer are respectively provided at the first end mounting portion and the second end mounting portion, the second shell is fixedly connected to the first shell, the second shell and the first shell clamp the silencer, and a connecting channel is enclosed between the first shell and the second shell, and the fluid inlet hole is connected to the fluid output hole through the connecting channel and the silencer hole.

[0005] A pump with a silencer structure according to an embodiment of the present invention has at least the following beneficial effects: in the above structure, the two ends of the silencer respectively cooperate with the first end mounting portion of the first shell and the second end mounting portion of the second shell, and are clamped and fixed between the first shell and the second shell, so that the silencer is firmly fixed and will not shift or fall out.

[0006] According to some embodiments of the present invention, the silencer is a column, and the silencer hole axially passes through the two end surfaces of the silencer; the first end mounting portion includes a first socket and a limiting isolation block, the limiting isolation block is arranged on the hole wall of the first socket, the silencer is inserted into the first socket, the limiting isolation block is abutted against the silencer, and the limiting isolation block forms a connecting gap between the silencer and the hole wall of the first socket, and the silencer hole is connected to the connecting channel through the connecting gap.

[0007] According to some embodiments of the present invention, the limiting isolation block includes a hole side wall protrusion and a hole bottom protrusion, the hole side wall protrusion is arranged on the hole side wall of the first socket, a plurality of the hole side wall protrusions are provided and arranged at intervals along the circumference of the first socket, the hole bottom protrusion is arranged at the hole bottom of the first socket, and the hole side wall protrusion and the hole bottom protrusion enclose a fitting position that fits the end of the silencer, and the silencer is inserted in the fitting position.

[0008] According to some embodiments of the present invention, a chamfer is provided at one end of the hole sidewall protrusion away from the bottom of the first insertion hole.

[0009] According to some embodiments of the present invention, the silencer is a cylinder, and the silencer hole axially passes through the two end surfaces of the silencer; the second end mounting portion is a second socket adapted for the silencer, the silencer is inserted into the second socket, the fluid output hole is opened at the bottom of the second socket, and the silencer hole is opposite to the second socket and is connected to each other.

[0010] According to some embodiments of the present invention, the first shell is provided with an installation groove adapted to the shape of the second shell, the second shell is installed in the installation groove, and a receiving step is provided at the circumferential side of the installation groove. The four sides of the second shell abut against the receiving step and are sealed with the receiving step.

[0011] According to some embodiments of the present invention, the sealing connection is ultrasonic welding.

[0012] According to some embodiments of the present invention, the side wall of the fluid inlet hole extends toward the second shell to form an input cylinder, and the second shell is provided with a sleeve cylinder, which is sleeved on the outer periphery of the input cylinder. There is a gap between the sleeve cylinder and the input cylinder and forms the entry end of the connecting channel.

[0013] According to some embodiments of the present invention, the muffler, the fluid output hole, the first end mounting portion, the second end mounting portion, and the connecting channel are provided in at least two groups and are arranged around the fluid inlet hole.

[0014] According to some embodiments of the present invention, a plurality of the muffler holes are provided and the hole diameters are different.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A three-dimensional schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 This is an exploded diagram of an embodiment of the present utility model;

[0019] Figure 3 for Figure 1 Cross-sectional view in the AA direction;

[0020] Figure 4 for Figure 2 A magnified schematic diagram of point B;

[0021] Figure 5 This is a three-dimensional schematic diagram of the silencer and the first end mounting portion of an embodiment of the utility model when they are in cooperation;

[0022] Figure 6 This is a perspective schematic diagram of the second housing of an embodiment of the present utility model;

[0023] Figure 7 This is a three-dimensional schematic diagram of the cooperation between the muffler and the second shell according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] First housing 100, fluid inlet hole 110, first end mounting portion 120, first insertion hole 121, limiting isolation block 122, mounting groove 130, input tube 140;

[0026] The second housing 200, the fluid output hole 210, the second end mounting portion 220, and the sleeve 230;

[0027] muffler 300, muffler hole 310;

[0028] Connecting channel 400. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figures 1 to 7 A pump with a silencer structure includes a first housing 100, a second housing 200, and a silencer 300. The first housing 100 is provided with a fluid inlet hole 110, the second housing 200 is provided with a fluid outlet hole 210, and the silencer 300 is provided with a silencer hole 310. The first housing 100 is provided with a first end mounting portion 120, and the second housing 200 is provided with a second end mounting portion 220. The first end mounting portion 120 and the second end mounting portion 220 are respectively adapted to the two ends of the silencer 300. The two ends of the silencer 300 are respectively provided on the first end mounting portion 120 and the second end mounting portion 220. The second housing 200 is fixedly connected to the first housing 100. The second housing 200 and the first housing 100 clamp the silencer 300. A connecting channel 400 is enclosed between the first housing 100 and the second housing 200. The fluid inlet hole 110 is connected to the fluid outlet hole 210 through the connecting channel 400 and the silencer hole 310.

[0034] In the above structure, the two ends of the silencer 300 respectively cooperate with the first end mounting portion 120 of the first shell 100 and the second end mounting portion 220 of the second shell 200, and are clamped and fixed between the first shell 100 and the second shell 200, so that the silencer 300 is firmly fixed and will not shift or fall out.

[0035] In the embodiment, the silencer 300 is disposed on the fluid input side of the pump. The fluid inlet hole 110 is the entry point for the entire fluid of the pump, and the fluid outlet hole 210 is used to connect to the internal chamber of the pump. The silencer 300 mainly reduces the noise on the fluid inlet side. Of course, it is conceivable that in some embodiments, the silencer 300 can also be disposed on the fluid output side, or in an internal channel. It should be understood that the fluid inlet hole 110 and fluid outlet hole 210 described in this embodiment are holes for relative fluid input and output, and are not limited to holes for fluid input and output of the entire pump. The fluid inlet hole 110 and fluid outlet hole 210 can also be holes inside the pump.

[0036] In the embodiment, the muffler 300 is a column, and the muffler hole 310 axially extends through both end surfaces of the muffler 300. The first end mounting portion 120 includes a first insertion hole 121 and a limiting isolation block 122. The limiting isolation block 122 is disposed on the wall surface of the first insertion hole 121. When the muffler 300 is inserted into the first insertion hole 121, the limiting isolation block 122 abuts against the muffler 300. The limiting isolation block 122 forms a connecting gap between the muffler 300 and the wall surface of the first insertion hole 121. The muffler hole 310 is connected to the connecting channel 400 through the connecting gap. The first end mounting portion 120 adopts the above-mentioned structure, which can install the muffler 300 without affecting the connection between the muffler hole 310 and the connecting channel 400. In addition, the tortuous channel structure is conducive to reducing the rebound of sound waves and improving the noise reduction effect.

[0037] In this embodiment, the limiting isolation block 122 includes a hole sidewall protrusion and a hole bottom protrusion. The hole sidewall protrusion is provided on the hole sidewall of the first insertion hole 121. Multiple hole sidewall protrusions are provided and spaced apart along the circumference of the first insertion hole 121. The hole bottom protrusion is provided at the bottom of the first insertion hole 121. The hole sidewall protrusion and the hole bottom protrusion enclose an adaptation position that adapts to the end of the muffler 300. The muffler 300 is inserted into the adaptation position. With this structure, the installation adaptability of the muffler 300 is high and the installation position is stable.

[0038] In the embodiment, the hole sidewall protrusions are specifically provided in two pairs, with a total of four, and the four hole sidewall protrusions are distributed at a 90-degree angle to each other, and the hole bottom protrusion is strip-shaped and connects the two hole sidewall protrusions of one pair. It is conceivable that the hole sidewall protrusions and the hole bottom protrusions are not limited to the above-mentioned number and layout structure. Those skilled in the art can reasonably configure the number and layout of their settings according to actual conditions. In some embodiments, the limiting isolation block 122 is not limited to a combination of the hole sidewall protrusions and the hole bottom protrusions. For example, one of them can also be used, as long as the limiting isolation block 122 can isolate the muffler 300 and the hole wall surface of the first jack 121 to form a connecting gap.

[0039] In an embodiment, an end of the hole sidewall protrusion away from the bottom of the first insertion hole 121 is provided with a chamfer, so as to facilitate the installation of the muffler 300 .

[0040] In this embodiment, the second end mounting portion 220 is a second receptacle adapted for use with the muffler 300. The muffler 300 is inserted into the second receptacle. The fluid outlet 210 is located at the bottom of the second receptacle. The muffler hole 310 and the second receptacle are opposite and interconnected. The second end mounting portion 220 has a simple structure and is easy to implement.

[0041] It is conceivable that the first end mounting portion 120 and the second end mounting portion 220 are not limited to the above-mentioned structure. For example, positioning columns and clamping structures can also be used to cooperate with the silencer 300. Those skilled in the art can reasonably configure the specific structure of the first end mounting portion 120 and the second end mounting portion 220 according to actual conditions.

[0042] In this embodiment, the first housing 100 is provided with a mounting groove 130 that matches the shape of the second housing 200. The second housing 200 is mounted in the mounting groove 130. A receiving step is provided around the perimeter of the mounting groove 130. The perimeter of the second housing 200 abuts against the receiving step and is sealed therewith. This structure allows for easy, secure, and reliable installation of the second housing 200.

[0043] In an embodiment, the sealing connection is ultrasonic welding, so that the sealing and connection are reliable.

[0044] It is conceivable that the first shell 100 and the second shell 200 are not limited to being fixed by the above-mentioned structure. For example, they can also be fixed by snap connection, tight fit fixation, threaded fastener connection, etc., and those skilled in the art can make specific configurations according to actual conditions.

[0045] In this embodiment, the sidewall of the fluid inlet hole 110 extends toward the second housing 200 to form an input tube 140. The second housing 200 is provided with a sleeve 230, which is sleeved around the outer periphery of the input tube 140. A gap is provided between the sleeve 230 and the input tube 140, forming the entrance end of the connecting channel 400. With this structure, after entering the fluid inlet hole 110, the fluid needs to zigzag around the sleeve 230 to exit, thereby forming a tortuous flow and facilitating noise reduction.

[0046] In the embodiment, the muffler 300, the fluid output hole 210, the first end mounting portion 120, the second end mounting portion 220, and the connecting channel 400 are provided in two groups and are arranged around the fluid inlet hole 110. It is conceivable that in some embodiments, the muffler 300, the fluid output hole 210, the first end mounting portion 120, and the second end mounting portion 220 are not limited to being provided in two groups. For example, more than two groups or only one group may be provided. The specific configuration can be based on the actual pump structure or the output requirements of the pump.

[0047] In the embodiment, a plurality of muffler holes 310 are provided with different apertures. With the above structure, the propagation speed of sound waves in different apertures is different, which makes it easier to offset each other and improve the noise reduction effect.

[0048] The structure of the embodiment of the present invention can be applied to the structure of pumps such as diaphragm pumps, centrifugal pumps, etc. The pump of this embodiment is specifically an air pump. It is conceivable that the structure of this embodiment can also be applied to water pumps or other fluid pumps.

[0049] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A pump with a silencer structure, characterized in that: include: A first housing (100) is provided with a fluid inlet hole (110); The second housing (200) is provided with a fluid output hole (210); The muffler (300) is provided with a muffler hole (310); The first shell (100) is provided with a first end mounting portion (120), and the second shell (200) is provided with a second end mounting portion (220). The first end mounting portion (120) and the second end mounting portion (220) are respectively adapted to the two ends of the muffler (300). The two ends of the muffler (300) are respectively provided on the first end mounting portion (120) and the second end mounting portion (220). The second shell (200) is fixedly connected to the first shell (100). The second shell (200) and the first shell (100) clamp the muffler (300). A connecting channel (400) is formed between the first shell (100) and the second shell (200). The fluid inlet hole (110) is connected to the fluid outlet hole (210) through the connecting channel (400) and the muffler hole (310).

2. The pump with a muffler structure according to claim 1, characterized in that: The muffler (300) is a column, and the muffler hole (310) axially penetrates both end surfaces of the muffler (300); the first end mounting portion (120) comprises a first plug hole (121) and a limiting isolation block (122); the limiting isolation block (122) is arranged on the hole wall surface of the first plug hole (121); the muffler (300) is inserted into the first plug hole (121), and the limiting isolation block (122) is abutted against the muffler (300); the limiting isolation block (122 forms a communication gap between the muffler (300) and the hole wall surface of the first plug hole (121); and the muffler hole (310) is communicated with the connecting channel (400) through the communication gap.

3. The pump with a muffler structure according to claim 2, characterized in that: The limiting isolation block (122) comprises a hole side wall protrusion and a hole bottom protrusion, the hole side wall protrusion is arranged on the hole side wall of the first insertion hole (121), a plurality of the hole side wall protrusions are arranged and spaced apart along the circumference of the first insertion hole (121), the hole bottom protrusion is arranged at the hole bottom of the first insertion hole (121), and the hole side wall protrusion and the hole bottom protrusion enclose an adaptation position adapted to the end of the muffler (300), and the muffler (300) is inserted into the adaptation position.

4. The pump with a muffler structure according to claim 3, characterized in that: One end of the hole side wall protrusion away from the bottom of the first insertion hole (121) is provided with a chamfer.

5. The pump with a muffler structure according to claim 1, characterized in that: The muffler (300) is a column, and the muffler hole (310) axially penetrates both end surfaces of the muffler (300); the second end mounting portion (220) is a second plug hole adapted to the muffler (300), the muffler (300) is inserted into the second plug hole, the fluid output hole (210) is opened at the bottom of the second plug hole, and the muffler hole (310) and the second plug hole are opposite and connected to each other.

6. The pump with a muffler structure according to claim 1, characterized in that: The first shell (100) is provided with a mounting groove (130) whose shape matches that of the second shell (200); the second shell (200) is installed in the mounting groove (130); a receiving step is provided at a peripheral position in the mounting groove (130); the fourth periphery of the second shell (200) abuts against the receiving step and is sealedly connected to the receiving step.

7. The pump with a sound-absorbing structure according to claim 6, characterized in that: The sealing connection is ultrasonic welding.

8. The pump with a sound-absorbing structure according to claim 1, characterized in that: The side wall of the fluid inlet hole (110) extends toward the second shell (200) to form an input cylinder (140). The second shell (200) is provided with a sleeve cylinder (230). The sleeve cylinder (230) is sleeved on the outer periphery of the input cylinder (140). A gap is provided between the sleeve cylinder (230) and the input cylinder (140), forming the entry end of the connecting channel (400).

9. The pump with a sound-absorbing structure according to claim 1, characterized in that: The muffler (300), the fluid output hole (210), the first end mounting portion (120), the second end mounting portion (220), and the connecting channel (400) are provided in at least two groups and are arranged around the fluid inlet hole (110).

10. The pump with a sound-absorbing structure according to claim 1, characterized in that: The muffler holes (310) are provided in plurality and have different hole diameters.

Images