Sterile liquid splitter plate one-way valve press-fitting jig
By combining frame components, drive components, and positioning components, the problems of low installation positioning accuracy and uneven pressing force of sterile liquid diversion plate and one-way valve are solved, realizing a high-precision and uniform pressing process, improving the assembly qualification rate and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EG-MEDACYS DEVICES (SHENZHEN) CO LTD
- Filing Date
- 2025-03-07
- Publication Date
- 2026-04-24
AI Technical Summary
The lack of dedicated press-fit fixtures in existing equipment results in low installation and positioning accuracy of the sterile liquid diverter plate and check valve, uneven press-fitting force, poor valve body sealing, and easy positional displacement of the diverter plate during assembly.
The design employs a combination of frame components, drive components, press-fit components, and positioning components. Through dual positioning using contoured grooves and valve body mounting holes, combined with the synergistic effect of spring-buffered preload rods and rigid pressure rods, it achieves staged press-fitting. Furthermore, the coordination of guide units and timers ensures precise alignment and uniform press-fitting.
It improved the assembly qualification rate of the flow divider and check valve, enhanced sealing performance and positioning accuracy, reduced the risk of equipment deflection and deformation, extended equipment life, and enabled real-time monitoring and traceability of the press-fitting process.
Smart Images
Figure CN224158018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of press-fitting fixture technology, and in particular to a press-fitting fixture for a sterile liquid diversion plate check valve. Background Technology
[0002] The existing equipment lacks a dedicated press-fit fixture for installing sterile liquid distribution plates and check valves; this results in low installation positioning accuracy, uneven press-fitting force leading to poor valve body sealing, and the defect that the distribution plate is prone to positional misalignment during assembly. Summary of the Invention
[0003] The present invention provides a sterile liquid diversion plate check valve press-fit fixture to at least solve the technical problems of poor valve body sealing caused by low installation positioning accuracy and uneven press-fitting force.
[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:
[0005] A sterile liquid distribution plate check valve press-fit fixture, comprising:
[0006] The frame assembly includes a horizontally arranged base and parallel opposing upper fixed plates, wherein the base and the upper fixed plates are connected by four fixed columns to form a three-dimensional frame.
[0007] The drive assembly includes a cylinder and a pressure bar plate driven therefrom. The cylinder is mounted on the top of the upper fixed plate via a flange. The cylinder push rod of the cylinder passes downward through the plate and is rigidly connected to the pressure bar plate.
[0008] The press-fitting assembly includes two symmetrically arranged one-way valve rods and a centrally located spring-buffered preload rod, wherein the one-way valve rods and the preload rod are vertically fixed to the bottom of the rod plate;
[0009] The positioning component includes a product positioning seat located on the top of the base, with a contoured groove on the upper surface that matches the outer contour of the product diverter plate for supporting the product diverter plate. The product positioning seat also has a valve body mounting hole that is coaxial with the one-way valve rod.
[0010] The cylinder push rod drives the pressure rod plate to perform vertical reciprocating motion, causing the one-way valve pressure rod to press into the valve body mounting hole.
[0011] The sterile liquid diversion plate one-way valve press-fit fixture provided in this embodiment of the utility model ensures the precise alignment of the diversion plate and the one-way valve through the dual positioning of the contoured groove and the valve body mounting hole. The synergistic effect of the spring buffer pre-pressure rod and the rigid pressure rod realizes the staged press-fit, and the interference fit path design improves the assembly qualification rate.
[0012] Furthermore, it also includes an upper guide unit, which includes two symmetrically arranged upper guide posts, which are respectively vertically fixed to the left and right sides of the bottom of the upper fixing plate. The pressure rod plate has a hole that is coaxial with the upper guide posts and is slidably connected to the upper guide posts.
[0013] Furthermore, it also includes a lower guide unit, which includes four lower guide posts, vertically fixed to the four corners of the bottom end of the pressure bar plate, and guide holes are opened at the positions corresponding to the four lower guide posts on the product positioning seat, and the lower guide posts are slidably connected to the guide holes.
[0014] Furthermore, the pressure bar plate includes a pressure bar fixed plate and a pressure bar movable plate stacked on top of each other.
[0015] Furthermore, a pressure gauge and a timer are respectively installed on the left and right sides of the top of the upper fixing plate.
[0016] Furthermore, a start button is installed on both the left and right sides of the top of the base.
[0017] Furthermore, limit posts are installed on both the left and right sides of the top of the product positioning seat.
[0018] Furthermore, a safety enclosure is provided on the outside of the frame assembly. Attached Figure Description
[0019] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0020] Figure 2 This is an assembly drawing of the flow divider and check valve of this utility model product;
[0021] Figure 3 This is a schematic diagram showing the cooperation between the flow divider plate and the pressure bar of this utility model product;
[0022] Figure 4 This is a schematic diagram of the positioning seat for the product of this utility model;
[0023] Figure 5 This is a diagram showing the working state of this utility model. Detailed Implementation
[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In this disclosure, unless otherwise stated, directional terms such as "axial," "circumferential," and "radial" generally refer to those defined relative to the axis of rotation of the rotor in the drive motor, and "inner" and "outer" refer to the inner and outer contours of the corresponding components. The terms "first," "second," etc., are used to distinguish different components and do not imply sequentiality or importance. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.
[0028] This utility model embodiment discloses a sterile liquid distribution plate one-way valve press-fitting fixture, which presses the one-way valve 1 into the product distribution plate 2. Please refer to [link / reference]. Figures 1-5The system includes: a frame assembly 3, comprising a horizontally arranged base 31 and a parallel-opposite upper fixed plate 32, wherein the base 31 and the upper fixed plate 32 are connected by four fixed columns 33 to form a three-dimensional frame; a drive assembly 4, comprising a cylinder 41 and a pressure rod plate 42 driven by the cylinder 41, wherein the cylinder 41 is mounted on the top of the upper fixed plate 32 via a flange, and the cylinder push rod 43 of the cylinder 41 extends downward and is rigidly connected to the pressure rod plate 42; and a press-fit assembly 5, comprising two symmetrically arranged one-way valve pressure rods 51 and a centrally located spring buffer. The punch-type preload rod 52, the one-way valve rod 51 and the preload rod 520 are vertically fixed to the bottom of the rod plate 42; the positioning assembly 6 includes a product positioning seat 61 located on the top of the base 31, the upper surface of which is provided with a contoured groove matching the outer contour of the product diversion plate 2, for supporting the product diversion plate 2, and the product positioning seat 61 is provided with a valve body mounting hole 21 coaxially corresponding to the one-way valve rod 51; wherein, the cylinder push rod 43 of the cylinder 41 drives the rod plate 42 to perform vertical reciprocating motion, so that the one-way valve rod 51 is pressed into the valve body mounting hole 21.
[0029] The sterile liquid diversion plate one-way valve press-fit fixture provided in this embodiment of the utility model ensures the precise alignment of the diversion plate and the one-way valve through the dual positioning of the contoured groove and the valve body mounting hole. The synergistic effect of the spring buffer pre-pressure rod and the rigid pressure rod realizes the staged press-fit, and the interference fit path design improves the assembly qualification rate.
[0030] Please continue reading Figure 1 It also includes an upper guide unit, which comprises two symmetrically arranged upper guide columns 34, respectively vertically fixed to the left and right sides of the bottom of the upper fixed plate 32. The pressure rod plate 42 has holes coaxially corresponding to the upper guide columns 34 and is slidably connected to the upper guide columns 34. This configuration improves the verticality of the pressure rod plate movement with a double upper guide column structure; overcomes the pressure rod plate deflection problem caused by single-point guidance in traditional press-fitting equipment; the sliding connection design reduces cylinder thrust deviation; the symmetrical layout eliminates stress concentration on one side; and the equipment lifespan is extended.
[0031] Please continue reading Figure 1 It also includes a lower guide unit, which comprises four lower guide posts 35, vertically fixed to the four corners of the bottom end of the pressure rod plate 42. Guide holes 62 are formed at the corresponding positions of the product positioning seat 61 and the four lower guide posts 35, and the lower guide posts 35 are slidably connected to the guide holes 62. The four corner lower guide posts form a planar constraint, resulting in high end-positioning accuracy and solving the problem of valve body deformation caused by inertial impact at the end of the press-fitting process.
[0032] Please continue reading Figure 1The pressure bar plate 42 includes a pressure bar fixed plate 421 and a pressure bar movable plate 422 stacked on top of each other. This split structure allows the movable plate to be finely adjusted to accommodate different valve body heights, eliminating flatness errors caused by thermal deformation in traditional integral pressure bar plates.
[0033] Please continue reading Figure 1 Pressure gauges 8 and timers 9 are respectively installed on the left and right sides of the top of the upper fixed plate 32. This solves the problem of process parameter drift caused by the lack of real-time monitoring in the traditional pressing process. The pressure gauges display pressure fluctuations in real time, and the timers precisely control the pressure holding time, forming a traceable data chain for the pressing process.
[0034] Please continue reading Figure 1 The base 31 has start buttons 10 installed on both the left and right sides of its top. The symmetrical layout is ergonomic and improves operating efficiency.
[0035] Please continue reading Figure 1 Limiting posts 63 are installed on both the left and right sides of the top of the product positioning seat 61 to limit the extreme position.
[0036] Please continue reading Figure 1 The frame component 3 is provided with a safety enclosure 36 on its outer side for protection.
[0037] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A sterile liquid distribution plate check valve press-fit fixture, wherein a check valve (1) is press-fitted into a product distribution plate (2), characterized in that, include: The frame assembly (3) includes a horizontally arranged base (31) and a parallel opposing upper fixing plate (32), wherein the base (31) and the upper fixing plate (32) are connected by four fixing columns (33) to form a three-dimensional frame; The drive assembly (4) includes a cylinder (41) and a pressure plate (42) driven therefrom. The cylinder (41) is mounted on the top of the upper fixed plate (32) via a flange. The cylinder push rod (43) of the cylinder (41) extends downward and is rigidly connected to the pressure plate (42). The press assembly (5) includes two symmetrically arranged one-way valve rods (51) and a centrally arranged spring buffer preload rod (52), wherein the one-way valve rods (51) and the preload rod (52) are vertically fixed to the bottom of the rod plate (42); The positioning component (6) includes a product positioning seat (61) located on the top of the base (31), and a contoured slot on the upper surface that matches the outer contour of the product diversion plate (2) for supporting the product diversion plate (2). The product positioning seat (61) is provided with a valve body mounting hole (21) that is coaxial with the one-way valve rod (51). The cylinder push rod (43) of the cylinder (41) drives the pressure plate (42) to make vertical reciprocating motion, so that the one-way valve pressure rod (51) is pressed into the valve body mounting hole (21).
2. The sterile liquid diversion plate check valve press-fit fixture according to claim 1, characterized in that, It also includes an upper guide unit, which includes two symmetrically arranged upper guide posts (34), which are respectively vertically fixed to the left and right sides of the bottom of the upper fixing plate (32). The pressure plate (42) has a hole coaxial with the upper guide post (34) and is slidably connected to the upper guide post (34).
3. The sterile liquid diversion plate check valve press-fit fixture according to claim 1, characterized in that, It also includes a lower guide unit, which includes four lower guide posts (35) that are vertically fixed at the four corners of the bottom of the pressure plate (42). Guide holes (62) are opened at the corresponding positions of the product positioning seat (61) and the four lower guide posts (35). The lower guide posts (35) are slidably connected to the guide holes (62).
4. The sterile liquid diversion plate check valve press-fit fixture according to claim 1, characterized in that, The pressure bar plate (42) includes a pressure bar fixed plate (421) and a pressure bar movable plate (422) stacked on top of each other.
5. The sterile liquid diversion plate check valve press-fit fixture according to claim 1, characterized in that, A pressure gauge (8) and a timer (9) are respectively installed on the left and right sides of the top of the upper fixed plate (32).
6. The sterile liquid diversion plate check valve press-fit fixture according to claim 1, characterized in that, The base (31) has a start button (10) installed on both the left and right sides of its top.
7. The sterile liquid diversion plate check valve press-fit fixture according to claim 1, characterized in that, Limiting posts (63) are installed on both the left and right sides of the top of the product positioning seat (61).
8. The sterile liquid diversion plate check valve press-fit fixture according to claim 1, characterized in that, The frame assembly (3) is provided with a safety enclosure (36) on its outer side.