Vibration absorption and noise reduction structure of pump products

Abstract

The utility model discloses a shock absorption and noise reduction structure for pump products. The shock absorption and noise reduction structure comprises a pump body, a pump sleeve, a hanging buckle, an anti-channeling nail and a shell. The pump sleeve is fixed on the pump body; the hanging buckle is used for providing flexible fixation between a pump body and a shell in the radial direction of the pump body so as to prevent the pump body from swinging in the radial direction and comprises a hanging head fixed to a pump sleeve through flexible rubber or a spring and a hanging hole fixed to the inner side of the pump body or a hanging hole fixed to the pump sleeve through the flexible rubber or the spring. The hanging head is fixed on the inner side of the pump body; the anti-channeling nail is of a columnar structure made of a flexible rubber material or a spring, is parallel to the axial direction of the pump body, is installed between the end face of the pump body and the shell and is used for flexibly preventing the pump body from channeling in the axial direction.

Description

Technical Field

[0001] This utility model relates to the field of pump products, and more specifically, to a vibration damping and noise reduction structure for pump products. Background Technology

[0002] Pumps and other products that generate vibration during operation produce significant vibration and noise, especially diaphragm pumps and piston pumps. In small and handheld pumps, as well as products that use pumps to start fluids, diaphragm pumps and piston pumps are often chosen as the core components due to cost and size constraints. Therefore, vibration damping and noise reduction become crucial aspects of product design and manufacturing for these products.

[0003] Traditional vibration damping and noise reduction technologies often start with the pump body itself, such as wrapping the pump body with a thick layer of sponge material and then stuffing it into the space inside the product, or using a fixing mechanism to fix the pump body to the product through the sponge layer.

[0004] As is well known, 1. Although sponge materials have a certain degree of elasticity, their elasticity will undergo fatigue deformation with changes in time, temperature, and stress, that is, they will lose elasticity; 2. Compared with sheet materials, sponge materials are more prone to aging and breakage; 3. Pump bodies are generally heavy, and if they are not rigidly fixed, even if they are wrapped with a sponge layer and placed in the internal space of the product, they are prone to displacement and impact on other parts or structures in the internal space of the product under the bumps and vibrations of long-distance transportation.

[0005] Product quality tracking and quality assurance experience have shown that the above factors cause a decline in product quality and lifespan. Even after more than a month of ocean shipping, the long-term high temperature and bumps inside the container can render the quality of traditional technologies ineffective.

[0006] Moreover, traditional technologies are not very effective at eliminating pump vibration and noise. In particular, after a period of time, as the quality of the sponge material declines, the vibration damping and noise reduction effects gradually decrease.

[0007] The market demands an effective vibration damping and noise reduction technology to replace traditional technologies. Utility Model Content

[0008] This utility model addresses the aforementioned deficiencies in the prior art and market demands by providing a vibration damping and noise reduction structure for pump products.

[0009] Based on actual needs, one or more embodiments of this specification provide a vibration damping and noise reduction structure for pump products, used to reduce the vibration of pumps and other vibration sources, and reduce operating noise. This technology can be extended to structures that use mechanical vibration to apply work to objects, reducing their vibration amplitude and noise.

[0010] One or more embodiments of this specification employ the following technical solutions:

[0011] This specification provides one or more embodiments of a vibration damping and noise reduction structure for a pump product, including a pump body, a pump sleeve, a suspension buckle, an anti-slip pin, and a housing, wherein the pump body is flexibly suspended on the housing;

[0012] The pump sleeve is fixed to the pump body;

[0013] The suspension buckle is used to provide flexible fixation between the pump body and the housing along the radial direction of the pump body to prevent the pump body from swinging radially. It includes: a suspension head fixed to the pump sleeve by flexible rubber or spring, and a suspension cavity fixed to the inside of the pump body, or a suspension cavity fixed to the pump sleeve by flexible rubber or spring, and a suspension head fixed to the inside of the pump body.

[0014] The anti-slip pin is a columnar structure made of flexible rubber or a spring, installed parallel to the axial direction of the pump body between the pump body end face and the housing, to flexibly prevent the pump body from moving axially.

[0015] In one or more embodiments of this specification, the pump sleeve is made of flexible rubber and is integrally formed with the suspension head or suspension cavity fixed thereon.

[0016] In one or more embodiments of this specification, the outer side of the pump sleeve is further provided with a plurality of nipple-shaped protrusions made of flexible rubber for flexible positioning contact with the inner side of the housing;

[0017] In one or more embodiments of this specification, the inner side of the pump sleeve is further provided with a plurality of nipple-shaped protrusions made of flexible rubber for flexible fixation to the outer side of the pump body, so as to reduce the vibration transmission area between the pump body and the housing and buffer vibration transmission.

[0018] In one or more embodiments of this specification, the pump sleeve is a can-shaped structure with one end fully open and the other end semi-closed, that is, a window is provided at the bottom of the can for the fluid input and output ports of the pump body to protrude.

[0019] In one or more embodiments of this specification, the pump sleeve is a can-shaped structure with both ends being semi-closed. One end is provided with a window for the fluid input and output ports of the pump body to protrude, and the other end is open for the pump body to be installed.

[0020] In one or more embodiments of this specification, the suspension cavity fixed on the pump sleeve is a tubular structure with open ends; correspondingly, the suspension head fixed on the inside of the pump body is provided with a limiting groove to prevent the suspension cavity fitted thereon from shifting.

[0021] In one or more embodiments of this specification, the suspension cavity fixed on the pump sleeve is a can-shaped structure with a single-end opening, and the can opening is provided with a retaining ring; correspondingly, the suspension head fixed on the inside of the pump body is provided with a limiting groove for the retaining ring to be engaged, so as to prevent the suspension cavity fitted on it from shifting.

[0022] In one or more embodiments of this specification, the pump sleeve and pump body are provided with positioning devices or positioning marks to ensure the assembly angle between them.

[0023] In one or more embodiments of this specification, a sponge-like elastic porous layer is further provided between the pump body and the housing to absorb noise generated when the pump body is working.

[0024] The above-described at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0025] By flexibly suspending the pump body on the housing, the channel through which pump body vibration is transmitted to the housing via the rigid connection is blocked. Furthermore, the flexible and finite-sized structure of the flex suspension greatly buffers the vibration on the flex connection channel, significantly reducing the transmission of vibration to the housing. Additionally, the gap between the pump body and the housing, created by the flex connection, and the housing's containment of the pump body, block the solid-state transmission path of sound, isolate sound, and significantly reduce noise.

[0026] Traditional materials such as sponge are abandoned for fixed support, as well as traditional installation methods, to improve reliability. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the basic structure for vibration damping and noise reduction.

[0029] Figure 2 This is a schematic diagram of a tubular suspension cavity and a suspension head with a limiting groove;

[0030] Figure 3 This is a schematic diagram of a can-shaped suspension cavity and a suspension head with a limiting groove. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0032] Example 1 – Vibration damping and noise reduction structure for pumps

[0033] like Figure 1 As shown, the vibration damping and noise reduction structure consists of pump body A, pump sleeve B, and housing C, etc., wherein:

[0034] Pump body A consists of motor A1 and pump body A2. Pump body A3 is equipped with fluid inlet / outlet port A3 (one of which is not shown due to angle).

[0035] Pump sleeve B is made of flexible rubber and has a can-shaped structure, including sleeve body B1, sleeve bottom B2, sleeve bottom opening B3, suspension head B4, nipple protrusion B5, etc.

[0036] The housing C is the outer shell of the entire machine. In this embodiment, the housing C includes a shell body C1, a working port C2, a suspension cavity C3, a fixing post C4, a first fluid channel C5, a second fluid channel C6, and a second fluid channel outlet C7. The first fluid channel C5 is connected to the working port C2, which is the interface through which the entire machine connects to the work object; that is, the entire machine supplies fluid to the work object or extracts fluid from the work object through the working port C2. The second fluid channel C6 is connected to the second fluid channel outlet C7.

[0037] During assembly, the pump body A2 of pump body A is inserted into the pump sleeve B, with the bottom of sleeve B2 abutting against the bottom end of pump body A2, and the fluid input / output port A3 protruding outside the opening B3 of the bottom of sleeve; the fluid input / output port A3 of pump body A is aligned with the first fluid channel C5 and the second fluid channel C6 of housing C, and each suspension head B4 of pump sleeve B is aligned with each suspension cavity C3 of housing C, and then inserted, so that the fluid input / output port A3 of pump body A is sealed and connected with the first fluid channel C5 and the second fluid channel C6 of housing C, and each suspension head B4 of pump sleeve B is interference-fitted into each suspension cavity C3 of housing C; the end cap (not shown) used to fasten the opening end of housing C is fastened to the opening end of housing C, and the wire is screwed into each fixing post C4.

[0038] Because the pump body A and the housing C have a soft suspension structure, under conditions such as bumps during transportation and vibrations during operation, the pump body A will inevitably move axially within the housing C. Therefore, in this embodiment, an anti-movement pin (not shown) is installed between the end cover (not shown) and the pump body A. The anti-movement pin is a columnar structure made of flexible rubber, installed parallel to the axial direction of the pump body between the pump body end face and the housing. It can flexibly prevent the pump body from moving axially, and also prevent hard collisions between the pump body A and the end cover caused by movement.

[0039] After assembly, one of the fluid input / output ports A3 of pump body A is connected to the working port C2 of housing C in the first fluid channel C5, and the other fluid input / output port A3 is connected to the outlet C7 of the second fluid channel through the second fluid channel C6. At the same time, the nipple-shaped protrusion B5 on pump sleeve B contacts the inner side of housing C. As an auxiliary device for flexibly fixing pump body A into housing C, the nipple-shaped protrusion B5 plays a role in multi-point balanced fixation.

[0040] During operation, motor A1 drives pump body A2, causing fluid to flow between working port C2 and the second fluid channel outlet C7. The operation inevitably generates vibration and noise. However, because pump body A is flexibly suspended from housing C by flexible pump sleeve B, its suspension head B4, and suspension cavity C3, the vibration is buffered by the flexible connecting devices, greatly attenuating the vibration amplitude transmitted to housing C. Furthermore, because pump body A is flexibly covered by pump sleeve B and rigidly contained by housing C, with gaps between them, the noise from pump body A is absorbed and isolated layer by layer, effectively isolating the noise transmission path and significantly reducing noise levels.

[0041] Trial production has demonstrated that the benefits of implementing this embodiment are as follows:

[0042] By using a suspension device of limited size, the pump body is flexibly suspended inside the casing, which greatly cuts off the path of vibration transmission to the casing. The flexible suspension device of limited size also buffers the vibration, which can effectively attenuate the vibration amplitude transmitted to the casing C.

[0043] By utilizing a flexible pump sleeve, a suspension device of limited dimensions, and nipple-shaped protrusions of limited dimensions to physically isolate the pump body and casing, the rigid transmission path of noise can be blocked, effectively reducing the noise amplitude.

[0044] Example 2 – Tubular suspension cavity and suspension head with limiting groove

[0045] like Figure 2 As shown, this embodiment provides the specific structure of a tubular suspension cavity and a suspension head with a limiting groove. The tubular suspension cavity 1 is composed of a can-shaped cavity ear 11 and a connecting rib 12, and is made of flexible rubber. It is integrated with the pump sleeve (not shown in this embodiment, but can be referred to in embodiment 1) through the connecting rib 12. The suspension head 2 is composed of a sleeve rod 21, a limiting ring 22, and a connecting wall 23. It is integrated with the housing (not shown in this embodiment, but can be referred to in embodiment 1) through the connecting arm 23.

[0046] During assembly, the ear 11 of the tubular suspension hole 1 is opened, passed over the limiting ring 22 of the suspension head 2, and put on the sleeve rod 21, so that the limiting ring 22 becomes the axial limiting device of the ear 11, ensuring that the suspension hole 1 and the suspension head 2 will not be misaligned or detached due to transportation bumps and working vibrations.

[0047] The advantages of implementing this embodiment are: ensuring reliable connection between the suspension head of the suspension hole 1 and the sleeve rod 21 of the suspension head 2, preventing them from separating, and ensuring vibration damping and noise reduction effects.

[0048] Example 3 – Can-shaped suspension cavity and suspension head with limiting groove

[0049] like Figure 3As shown, this embodiment provides the specific structure of a can-shaped suspension cavity and a suspension head with a limiting groove. The can-shaped suspension cavity 3 is composed of a can-shaped cavity sleeve 13, a tightening opening 14, and a connecting rib 12, and is made of flexible rubber. It is integrated with the pump sleeve (not shown in this embodiment, but can be referred to in embodiment 1) through the connecting rib 12, and the tightening opening 14 is thicker than the can-shaped cavity sleeve 13, which has a reinforcing effect. The suspension head 2 is composed of a sleeve head 25, a reducing section 26, and a connecting arm 27, and is integrated with the shell (not shown in this embodiment, but can be referred to in embodiment 1) through the connecting wall 27.

[0050] During assembly, the constriction opening 14 of the tubular suspension cavity 1 is opened and placed on the sleeve head 25, so that the constriction opening 14 is constricted at the reduced diameter section 26 of the suspension head 2. Since the diameter of the constriction opening 14 is much smaller than the inner diameter of the can-shaped cavity sleeve 13, and the constriction opening 14 has a reinforcing effect, it can be ensured that the suspension cavity 1 and the suspension head 2 will not be misaligned or detached due to transportation bumps and working vibrations.

[0051] The advantages of implementing this embodiment are: ensuring reliable connection between the suspension head of the suspension hole 1 and the sleeve 25 of the suspension head 2, preventing them from separating, and ensuring vibration damping and noise reduction effects.

[0052] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. Therefore, some embodiments are described relatively simply; relevant parts can be referred to the description in Embodiment 1.

[0053] The foregoing has described specific embodiments of this specification; other embodiments are within the scope of the appended claims. In some cases, the structures described in the claims can achieve the desired results by referring to the specific embodiments described above. In particular, the structural design of the suspension cavity and suspension head being interposed between the pump body and the object described in the claims can achieve similar implementation effects, and the descriptions in the claims are already clear and self-evident, requiring no further description through specific embodiments. Those skilled in the art can easily achieve the desired results by referring to the specific embodiments and design concepts described above.

[0054] The above description is merely one or more embodiments of this specification and is not intended to limit this specification. For those skilled in the art, the techniques of one or more embodiments of this specification can be combined in new ways to achieve new implementations, or various modifications and variations can be made. Any modifications, equivalent substitutions, improvements, technical combinations, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of the claims of this specification.

Claims

1. A vibration and noise reduction structure for a pump product, characterized by, It comprises a pump body, a pump sleeve, a suspension buckle, an anti-channeling pin and a shell, wherein the pump body is flexibly suspended on the shell; The pump sleeve is fixed on the pump body, and a plurality of flexible rubber-made milky projections are arranged on the outer side of the pump sleeve for flexible positioning contact with the inner side of the shell, and / or a plurality of flexible rubber-made milky projections are arranged on the inner side of the pump sleeve for flexible fixation with the outer side of the pump body, so as to reduce the vibration conduction area between the pump body and the shell and buffer vibration conduction. The suspension buckle is used for providing flexible fixation between the pump body and the shell along the radial direction of the pump body to prevent the pump body from swinging along the radial direction, and comprises a suspension head fixed on the pump sleeve by flexible rubber or a spring and a suspension hole fixed on the inner side of the pump body, or a suspension hole fixed on the pump sleeve by flexible rubber or a spring and a suspension head fixed on the inner side of the pump body. The anti-channeling pin is a columnar structure made of flexible rubber or a spring, which is installed between the end face of the pump body and the shell in parallel with the axial direction of the pump body, and is used for flexibly preventing the pump body from moving along the axial direction.

2. The vibration and noise reduction structure for a pump product according to claim 1, wherein The pump sleeve is made of flexible rubber and is integrally formed with the suspension head or the suspension hole fixed thereon.

3. The vibration and noise reduction structure for a pump product according to claim 1, wherein The pump sleeve is a tank structure, one end of which is completely open, and the other end is semi-closed, i.e., a window is arranged at the bottom of the tank for the fluid input and output ports of the pump body to protrude out.

4. The vibration and noise reduction structure for a pump product according to claim 1, characterized in that, The pump sleeve is a tank structure, both ends of which are semi-closed, one end of which is provided with a window for the fluid input and output ports of the pump body to protrude out, and the other end is open for the pump body to be installed. The suspension hole fixed on the pump sleeve is a tubular structure with both ends open; correspondingly, a limiting groove is arranged on the suspension head fixed on the inner side of the pump body to prevent the suspension hole sleeved thereon from being displaced.

5. The vibration and noise reduction structure for a pump product according to claim 1, wherein The suspension hole fixed on the pump sleeve is a tank structure with one end open, and the tank opening is provided with a constriction ring; correspondingly, a limiting groove for the constriction ring to be clamped into is arranged on the suspension head fixed on the inner side of the pump body to prevent the suspension hole sleeved thereon from being displaced.

6. The vibration and noise reduction structure for a pump product according to claim 1, wherein Positioning devices or positioning marks are arranged on the pump sleeve and the pump body to ensure the assembly angle therebetween.

7. The vibration and noise reduction structure for a pump product according to claim 1, wherein A sponge-like elastic porous layer is arranged between the pump body and the shell to absorb the noise generated when the pump body works.

8. The vibration and noise reduction structure for a pump product according to claim 1, characterized in that, ​

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