Buffer damper with self-locking function applied to fluid
By designing a self-locking buffer damper, the material pulsation problem in the peristaltic pump was solved by utilizing the intermediate bladder and one-way valve plate structure, thus achieving continuous fluid delivery and anti-splashing effects.
Patent Information
- Application Number
- CN202520361932.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Peristaltic pumps produce intermittent pulses when conveying materials, resulting in insufficient fluid continuity and problems such as splashing, backflow, and leakage.
Design a self-locking buffer damper with an intermediate bladder and a one-way valve structure. The intermediate bladder provides a buffer space, and the one-way valve opens when there is pump pressure and locks itself when there is no pump pressure to prevent liquid flow.
It enables continuous material transport, prevents splashing and dripping, and improves the stability and safety of fluid transport.
Smart Images
Figure CN223895450U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluid application technology, and in particular to a buffer damper with self-locking function for use in fluids. Background Technology
[0002] In the liquid delivery pipeline of a peristaltic pump, the peristaltic pump is the power source for conveying materials. The pump head of a peristaltic pump generally uses two or three rollers (or more rollers) to squeeze the elastic tube to transport materials. Because the process of squeezing the elastic tube with two or more rollers will generate intermittent pulses of material, the continuity of the material flow will be insufficient, and material splashing will easily occur at the discharge end. At the same time, material backflow and material dripping will also occur.
[0003] Therefore, it is necessary to design a self-locking damper. Not only in the fluid scenarios of peristaltic pumps, but also in other pulse fluid applications of pumps, the self-locking damper can play a role in ensuring material continuity and preventing backflow and leakage. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model designs a buffer damper with self-locking function for use with fluids.
[0005] The present invention adopts the following technical solution:
[0006] A self-locking buffer damper for fluid applications includes a buffer body, a first connector, and a second connector. The first and second connectors are connected to the front and rear ends of the buffer body. The buffer body includes an intermediate chamber, and an inlet pipe and an outlet pipe connected to the front and rear ends of the intermediate chamber, respectively. The outlet pipe is connected to the second connector, and the inlet pipe is connected to the first connector. The intermediate chamber provides a buffer space, and a one-way valve is installed between the outlet pipe and the second connector. When there is pump pressure, the valve opens; when there is no pump pressure, the valve closes the liquid passage using its own elasticity, thus achieving a self-locking function.
[0007] Preferably, the intermediate bladder is an elastic bladder, which undergoes elastic deformation as the internal water pressure changes.
[0008] Preferably, the diameter of the feed pipe and the discharge pipe is 0.5-100mm, the diameter of the intermediate bladder is 1.5-300mm, and the length is 6-1200mm.
[0009] Preferably, the intermediate bladder has a gradually expanding section on the side adjacent to the feed pipe with rounded corners, and a gradually contracting section on the side adjacent to the discharge pipe with rounded corners. This eliminates dead zones for material flow.
[0010] Preferably, the intermediate capsule is a rigid shell.
[0011] Preferably, the buffer body is integrally hot-pressed with silicone and has a hardness of 0-90A, or integrally blow-molded.
[0012] Preferably, the one-way valve plate is in the shape of a "straight line", "cross", or "star". Different one-way valve structures are used depending on the viscosity of the liquid.
[0013] Preferably, the discharge pipe is connected to the connector two via a gasket, spring washer, and nut, and to the one-way valve plate; the feed pipe is connected to the connector one via cable ties, hose clamps, or sealant. The connection to the one-way valve plate can be achieved using flat or beveled screws, or by adhesive sealing. The buffer is fastened to the connector using a cable tie, hose clamp, or sealant, and the main body of the buffer features a flanged structure on both sides to prevent detachment. The connector is changed from a pagoda-shaped type to a flat type to prevent material retention and food safety issues.
[0014] Preferably, the intermediate bladder is equipped with at least one longitudinal reinforcing rib and at least one transverse reinforcing rib. Alternatively, the main body of the buffer can be designed as a square shape with rounded corners to prevent deformation of the buffer under positive pressure from the pump and negative pressure from the pulse, thus promoting liquid continuity and preventing dripping.
[0015] Preferably, the intermediate capsule has multiple concave portions evenly distributed along its circumference. This increases fluid resistance and reduces pulsation.
[0016] The beneficial effects of this utility model are: (1) The self-locking buffer damper designed in this utility model, when added to the pipeline, can play the role of material continuity and anti-splashing, and has an obvious buffering and anti-drip effect on the fluid; (2) The buffer structure adds different one-way valve plates such as "I", "cross" and "rice" type. Different one-way valve structures are adopted according to different viscosity liquids. When there is pump pressure, the valve plate will open. When there is no pump pressure, the valve plate closes the liquid channel by its own elasticity, which plays a self-locking role. Attached Figure Description
[0017] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;
[0018] Figure 2 yes Figure 1 A type of front view;
[0019] Figure 3 yes Figure 2 A cross-sectional view along the AA direction;
[0020] Figure 4 yes Figure 2 An exploded exploded diagram;
[0021] Figure 5 This is a perspective view of embodiment 2 of the present invention;
[0022] Figure 6 yes Figure 5 A type of front view;
[0023] Figure 7 yes Figure 6 A cross-sectional view along the BB direction;
[0024] Figure 8 yes Figure 6 An exploded exploded diagram;
[0025] In the diagram: 1. Connector 2, 2. One-way valve plate, 3. Gasket, 4. Spring washer, 5. Nut, 6. Buffer body 1, 7. Cable tie, 8. Connector 1, 9. Buffer body 2. Detailed Implementation
[0026] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:
[0027] Example 1: As Figures 1-4 As shown, a buffer damper with a self-locking function for fluids includes a connector 2 1, a one-way valve 2, a gasket 3, a spring gasket 4, a nut 5, a buffer body 1 6, a cable tie 7, and a connector 1 8 connected in sequence. The buffer body 1 includes an intermediate bladder and an inlet pipe and an outlet pipe connected to the intermediate bladder at the front and rear, respectively. The outlet pipe is connected to connector 2, and the inlet pipe is connected to connector 1. The intermediate bladder is an elastic bladder that provides a buffer space. The elastic bladder undergoes elastic deformation as the internal water pressure changes. A one-way valve is provided between the outlet pipe and connector 2.
[0028] The elastic bladder has a gradually expanding section on the side adjacent to the feed pipe, with rounded corners. The elastic bladder has a gradually contracting section on the side adjacent to the discharge pipe, with rounded corners, eliminating dead zones for material flow.
[0029] The main body of the buffer is made of silicone through a one-piece hot-press molding process, with a hardness ranging from 0-90A. The one-way valve is in the form of a "straight line," "cross," or "star pattern." Different one-way valve structures are used depending on the viscosity of the liquid. When there is pump pressure, the valve opens; when there is no pump pressure, the valve closes the liquid passage using its own elasticity, thus providing a self-locking function.
[0030] The main body of the buffer adopts a flanged structure, which is not easy to fall off; the first and second connectors have been changed from a pagoda shape to a flat shape to prevent material retention and food safety issues; under ultra-high pressure damping conditions, a rigid outer shell made of plastic or other materials can be added to prevent the risk of damper bursting; silicone hot pressing or plastic blow molding processes can be used, which are easy to select materials and have mature processes, and the structure is relatively simple, which is conducive to large-scale production, solving practical fluid problems while reducing costs.
[0031] Example 2: As Figures 5-8 As shown, a buffer damper with a self-locking function for fluids includes a connector two, a one-way valve plate, a gasket, a spring gasket, a nut, a buffer body two 9, a cable tie, and a connector one connected in sequence. The buffer body two includes an intermediate bladder and an inlet pipe and an outlet pipe connected to the intermediate bladder at the front and rear, respectively. The outlet pipe is connected to the connector two, and the inlet pipe is connected to the connector one. The intermediate bladder is an elastic bladder that provides a buffer space. The elastic bladder undergoes elastic deformation as the internal water pressure changes. A one-way valve plate is provided between the outlet pipe and the connector two.
[0032] The elastic bladder has a gradually expanding section on the side adjacent to the feed pipe, with rounded corners. The elastic bladder has a gradually contracting section on the side adjacent to the discharge pipe, with rounded corners, eliminating dead zones for material flow.
[0033] The main body of the buffer is made of silicone through a one-piece hot-press molding process, with a hardness of 0-90A. The one-way valve is in the form of a "straight", "cross", or "star" pattern. Different one-way valve structures are used depending on the viscosity of the liquid. When there is pump pressure, the valve opens; when there is no pump pressure, the valve closes the liquid passage using its own elasticity, thus providing a self-locking function.
[0034] The elastic bladder has four concave sections evenly distributed along its circumference, which helps to increase fluid resistance and reduce pulsation.
[0035] The elastic bladder is equipped with three longitudinal reinforcing ribs and four transverse reinforcing ribs to prevent deformation of the buffer under positive pressure of the pump and negative pressure of the pulse, which is beneficial to the continuity of the liquid and the anti-drip effect.
[0036] The second body of the buffer adopts a flanged structure, which is not easy to fall off; the first and second joints have been changed from a pagoda shape to a flat shape to prevent material retention and food safety issues; under ultra-high pressure damping conditions, a rigid outer shell made of plastic or other materials can be added to prevent the risk of damper bursting; silicone hot pressing or plastic blow molding processes can be used, which are easy to select materials and have mature processes, and the structure is relatively simple, which is conducive to large-scale production, solving practical fluid problems while reducing costs.
[0037] The self-locking buffer damper designed in this utility model, when added to the pipeline, can play a role in ensuring material continuity and preventing splashing, and has a significant buffering and anti-drip effect on the fluid.
[0038] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.
Claims
1. A buffer damper with self-locking function applied to fluid, comprising a buffer body, a first connector, and a second connector, wherein the first connector and the second connector are connected to the front and rear ends of the buffer body, characterized in that, The buffer body includes an intermediate bladder, and an inlet pipe and an outlet pipe connected to the front and rear of the intermediate bladder respectively. The outlet pipe is connected to connector two, and the inlet pipe is connected to connector one. The intermediate bladder provides a buffer space, and a one-way valve is provided between the outlet pipe and connector two.
2. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The intermediate bladder is an elastic bladder, which undergoes elastic deformation as the internal water pressure changes.
3. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The diameter of the feed pipe and the discharge pipe is 0.5-100mm, the diameter of the intermediate bladder is 1.5-300mm, and the length is 6-1200mm.
4. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The intermediate bladder has a gradually expanding portion on the side adjacent to the feed pipe, with rounded corners, and a gradually contracting portion on the side adjacent to the discharge pipe, with rounded corners.
5. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The intermediate capsule is a rigid shell.
6. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The main body of the buffer is made of silicone hot-press molding with a hardness of 0-90A or blow molding.
7. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The one-way valve plate is in the shape of a "straight", "cross", or "star".
8. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The discharge pipe is connected to the connector two via a gasket, a spring washer, and a nut, and to the one-way valve plate. The feed pipe is connected to the connector one via a cable tie, a hose clamp, or sealant.
9. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The intermediate bladder is equipped with at least one longitudinal reinforcing rib and at least one transverse reinforcing rib.
10. A buffer damper with self-locking function applied to fluids according to claim 1, characterized in that, The intermediate capsule has multiple concave sections evenly arranged along its circumference.