A clamping device and blood purification equipment
By injecting the pressure pad with the support frame into one and fixing it on the dialyzer clip, the problem of unfixed pressure pad and low production efficiency in the prior art is solved, and higher quality and higher efficiency product production is achieved.
Patent Information
- Application Number
- CN202421081702.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The press pad fixing method of existing dialyser clamps is cumbersome and has low automation, resulting in a long production cycle and poor aesthetics, which can easily fall off after long-term use, affecting product quality and increasing production difficulty and cost.
Injection molding technology is used to mold the pressure pad and the support frame integrally, and then fix the support frame to the fixing clip and/or movable clip to avoid manual sticking and trimming the pressure pad.
It greatly reduces the risk of pressure pads falling off, damage and scrapping, improves product quality and stability, simplifies production processes, improves production efficiency, and reduces waste rate and production costs.
Smart Images
Figure CN222708765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a clamping device and blood purification equipment. Background Art
[0002] In the field of medical device manufacturing, blood purification equipment is an important medical device used to help patients purify their blood. Dialyzer clamps are medical accessories for blood purification equipment, used to clamp objects such as hemodialyzers, hemoperfusion devices or filters.
[0003] In the production process of dialyzer clamps, pressure pads are a commonly used anti-skid material to prevent the dialyzer from slipping. The existing technology mainly involves applying a surface treatment agent to the fixed clamp and the movable clamp and then leaving them for more than 8 days, then quickly applying glue to bond the silicone pad, and using tools to trim both sides of the silicone pad. In the actual production process, due to the cumbersome process, low degree of automation, and difficulty in controlling the amount of glue, the production cycle is long, the aesthetics are poor, and it is easy to fall off after long-term use. This not only affects the quality of the product, but also increases the difficulty and cost of production.
[0004] In the end, how to design a new clamping device that can effectively solve the problem of pressure pad falling off and improve production efficiency is an urgent problem to be solved in the current dialyzer clamp production field. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a clamping device, the pressure pad of which is firmly fixed and the production efficiency is improved.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A clamping device comprises: a fixed clamp, a movable clamp, and a support frame and a pressure pad which are integrally formed by injection molding, wherein the support frame is fixedly connected to the fixed clamp and / or the movable clamp.
[0008] Compared with the prior art, the utility model has the following beneficial effects:
[0009] The pressure pad and the support frame are injection molded into one piece, and then the support frame is fixed on the fixed clamp and / or the movable clamp. There is no need to manually stick and trim the pressure pad, which can greatly reduce the risk of the pressure pad falling off, being damaged, or being scrapped, and improve the quality and stability of the product.
[0010] This technical solution improves the combination mode of the pressure pad and the support frame, improves the combination strength, avoids the pressure pad from falling off during the subsequent assembly process, and improves the stability of production. Compared with the existing production method, the production process of this technical solution is more simplified, greatly improves production efficiency, reduces the scrap rate caused by the pressure pad falling off, reduces production costs, and improves the economic benefits of the enterprise.
[0011] As a preferred solution, the support frame is clamped with the fixed clamp and / or the movable clamp.
[0012] As a preferred embodiment, the fixed clamp and / or the movable clamp has an inner cavity and a first clamping portion is fixedly provided on the inner wall thereof, the support frame is fixedly provided with a second clamping portion cooperating with the first clamping portion, and the support frame is located in the inner cavity of the fixed clamp and / or the movable clamp.
[0013] As a preferred solution, the first clamping parts are provided with two groups and are distributed on two opposite sides of the fixed clamp and / or the movable clamp. The top of the fixed clamp and / or the movable clamp is provided with a groove, and the top of the support frame is clamped into the groove.
[0014] As a preferred solution, a first positioning groove or a first positioning protrusion is fixedly provided on the inner wall of the movable clamp, and a second positioning protrusion or a second positioning groove matching the first positioning groove or the first positioning protrusion is fixedly provided on the support frame.
[0015] As a preferred solution, the top of the support frame has an arc transition.
[0016] As a preferred solution, the support frame and the pressure pad are injection molded twice.
[0017] As a preferred solution, the material of the support frame is PA66+GF30%, and the material of the pressure pad is silicone.
[0018] As a preferred solution, one end of the fixed clamp and / or the movable clamp is provided with a guiding arc surface, and a groove is provided on the arc surface.
[0019] In view of the deficiencies in the prior art, the utility model further provides a blood purification device, which can firmly clamp an object, and the structure of the clamping device itself is firm and easy to produce.
[0020] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0021] A blood purification device comprises any one of the clamping devices described above. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a schematic diagram of the overall structure of the clamping device in some of the embodiments;
[0023] Figure 2 Schematic diagram of the structure of the fixed clamp and the movable clamp in some embodiments;
[0024] Figure 3 for Figure 2 A cross-sectional view of
[0025] Figure 4 for Figure 2 Schematic diagram of the explosion structure;
[0026] Figure 5 Schematic diagram of the structure of the protrusions and barbs in some embodiments.
[0027] In the above drawings:
[0028] 1. Fixed clamp; 101. Positioning column; 2. Movable clamp; 201. Bottom plate; 202. Side plate; 203. First positioning groove; 204. Guide arc surface; 205. Groove; 3. Support frame; 301. First positioning protrusion; 4. Pressure pad; 5. Bump; 6. Barb. DETAILED DESCRIPTION
[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; the structures described in the various embodiments can be freely combined without any conflict in structure or principle.
[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0032] The following is a description of some embodiments of the present invention in conjunction with the accompanying drawings:
[0033] like Figures 1 to 5 As shown, the utility model proposes a clamping device, including: a fixed clamp 1, a movable clamp 2, a support frame 3 and a pressure pad 4, wherein the fixed clamp 1 and the movable clamp 2 are connected together by a pin shaft so that the movable clamp 2 can move away from or close to the fixed clamp 1 under the drive of an external force, thereby realizing the opening or closing of the clamping device; this part of the structure itself is a prior art and will not be described in detail here. The support frame 3 and the pressure pad 4 are injection molded together. For example, the pressure pad 4 and the support frame 3 are injection molded twice. Specifically, the injection molded support frame 3 is first prepared, and the material of the support frame 3 is preferably PA66+GF30%, and the material of the pressure pad 4 is preferably silicone. Then, the support frame 3 is placed in a pre-designed mold and the injection molding parameters are set. After the injection molding is completed, the pressure pad 4 and the support frame 3 are tightly connected together to form an integral structure. After the pressure pad 4 and the support frame 3 are injection molded, the support frame 3 is fixedly connected to the fixed clamp 1 and / or the movable clamp 2 through fasteners such as snap structures / screws. Exemplarily, two support frames 3 are provided and are respectively mounted on the fixed clamp 1 and the movable clamp 2. Accordingly, each support frame 3 is injection molded with a pressure pad 4; the two pressure pads 4 can clamp objects more stably, and the common objects include hemodialyzers, hemoperfusion devices or filters.
[0034] Using the above solution,
[0035] The pressure pad 4 and the support frame 3 are injection molded into one piece, and then the two support frames 3 are fixed on the fixed clamp 1 and the movable clamp 2. There is no need to manually stick and trim the pressure pad 4, which can greatly reduce the risk of the pressure pad 4 falling off, being damaged, or being scrapped, thereby improving the quality and stability of the product.
[0036] This technical solution improves the combination mode of the pressure pad 4 and the support frame 3, improves the combination strength, avoids the pressure pad 4 from falling off during the subsequent assembly process, and improves the stability of production. Compared with the existing production method, the production process of this technical solution is more simplified, greatly improves the production efficiency, reduces the scrap rate caused by the pressure pad 4 falling off, reduces the production cost, and improves the economic benefits of the enterprise.
[0037] As a preferred solution, Figures 2 to 5 As shown, the two support frames 3 are respectively clamped on the fixed clamp 1 and the movable clamp 2, which facilitates the installation of the support frame 3, the fixed clamp 1 and the movable clamp 2, and improves production efficiency. For example, a protrusion 5 is fixed on the fixed clamp 1 and the movable clamp 2, and a barb 6 that can produce a certain deformation is fixed on the support frame 3. The two support frames 3 are pressed on the fixed clamp 1 and the movable clamp 2 respectively, and the installation connection between the support frame 3 and the fixed clamp 1 and the movable clamp 2 can be completed. Similarly, a barb 6 that can produce a certain deformation can also be fixed on the fixed clamp 1 and the movable clamp 2, and a protrusion 5 can be fixed on the support frame 3, which will not be repeated here.
[0038] As a preferred solution, Figures 2 to 4 As shown, the fixed clamp 1 and the movable clamp 2 have an inner cavity. Exemplarily, the fixed clamp 1 and the movable clamp 2 are surrounded by a bottom plate 201 and two side plates 202 fixed on the bottom plate 201 to form an inner cavity. The two support frames 3 are completely embedded in the inner cavity of the fixed clamp 1 and the movable clamp 2, which can protect the pressure pad 4. Specifically, the inner wall of the fixed clamp 1 and the movable clamp 2 is fixed with a first clamping portion, which can be the above-mentioned protrusion 5 or a slot. The corresponding support frames 3 are fixed with a second clamping portion, which can be the above-mentioned barb 6. During assembly, the support frame 3 is pressed onto the fixed clamp 1 and the movable clamp 2, and the protrusion 5 / slot limits the barb 6, so that the support frame 3 is fixed on the fixed clamp 1 and the movable clamp 2. The assembly is convenient, and the structure is simple and easy to manufacture.
[0039] As a preferred solution, Figures 2 to 4 As shown, one of the first clamping parts is provided with two groups and is distributed on two opposite sides of the fixed clip 1 (i.e., on the two side plates 202 of the fixed clip 1). Similarly, the other first clamping part is provided with two groups and is distributed on two opposite sides of the movable clip 2 (i.e., on the two side plates 202 of the movable clip 2). Figure 3 As shown, the top of the fixed clip 1 and / or the movable clip 2 is provided with a groove, and the top of the support frame 3 is clamped into the groove. In this way, the first clamping portion and the second clamping portion can limit the movable clip 2 and the fixed clip 1. In addition, the movable clip 2 and / or the groove of the movable clip 2 limit the top of the support frame 3, which is more stable.
[0040] As a preferred solution, Figure 3 and Figure 4As shown, in order to facilitate the positioning of the movable clamp 2 and the support frame 3 during assembly, a first positioning groove 203 is provided on the inner wall of the movable clamp 2, and a first positioning protrusion 301 is fixed on the support frame 3. The first positioning protrusion 301 is inserted into the first positioning groove 203 to play a guiding and positioning role. Of course, a second positioning protrusion can also be fixed on the inner wall of the movable clamp 2, and a second positioning groove can be fixed on the support frame 3. The second positioning protrusion is inserted into the second positioning groove, which can also play a guiding and limiting role, and facilitate the assembly of the support frame 3 and the movable clamp 2.
[0041] In addition, a positioning column 101 can be fixed on the inner wall of the fixing clamp 1, and a positioning sleeve can be fixed on the supporting frame 3 opposite thereto. During the assembly process, the positioning sleeve is sleeved outside the positioning column 101 to realize the guiding and limiting function. The fixing clamp 1 and the corresponding supporting frame 3 are easy to assemble and have a simple structure.
[0042] As a preferred solution, Figure 3 and Figure 4 As shown, in order to make the support frame 3 more smoothly inserted into the top groove of the movable clamp 2, illustratively, the top of the support frame 3 opposite to the movable clamp 2 is designed to be an arc transition.
[0043] As a preferred solution, Figure 2 As shown, in order to facilitate pushing the object to be clamped into the clamping device with one hand, a guide arc surface 204 is provided at one end of the fixed clamp 1 and the movable clamp 2, and a groove 205 is provided on the arc surface; so as to reduce the contact area between the object and the fixed clamp 1 and the movable clamp 2 and reduce the friction.
[0044] Furthermore, the groove 205 is designed as a waist-shaped groove.
[0045] Preferably, the clamping arcs of the fixed clamp 1 and the movable clamp 2 are designed according to the diameter characteristics of different objects, and the movable arc surfaces of the fixed clamp 1 and / or the movable clamp 2 are increased, so that the clamping range is larger.
[0046] The utility model also provides a blood purification device, which has any one of the clamping devices described above.
[0047] Therefore, the object can be firmly clamped, and the structure of the clamping device itself is firm, and the production is efficient and the cost is low.
Claims
1. A clamping device, characterized in that: include: A fixed clamp (1), a movable clamp (2), a support frame (3) and a pressure pad (4) which are integrally formed by injection molding; the support frame (3) is fixedly connected to the fixed clamp (1) and / or the movable clamp (2).
2. A clamping device according to claim 1, characterized in that: The support frame (3) is clamped with the fixed clamp (1) and / or the movable clamp (2).
3. A clamping device according to claim 1 or 2, characterized in that: The fixed clamp (1) and / or the movable clamp (2) has an inner cavity and a first clamping portion is fixedly provided on the inner wall thereof, the support frame (3) is fixedly provided with a second clamping portion that matches the first clamping portion, and the support frame (3) is located in the inner cavity of the fixed clamp (1) and / or the movable clamp (2).
4. A clamping device according to claim 3, characterized in that: The first clamping parts are provided with two groups and are distributed on two opposite sides of the fixed clamp (1) and / or the movable clamp (2); the top of the fixed clamp (1) and / or the movable clamp (2) is provided with a groove, and the top of the support frame (3) is clamped into the groove.
5. A clamping device according to claim 4, characterized in that: The inner wall of the movable clamp (2) is fixedly provided with a first positioning groove (203) or a first positioning protrusion (301), and the support frame (3) is fixedly provided with a second positioning protrusion or a second positioning groove matching the first positioning groove (203) or the first positioning protrusion (301).
6. A clamping device according to claim 5, characterized in that: The top of the support frame (3) has an arc transition.
7. A clamping device according to claim 1, 2, 4, 5 or 6, characterized in that: The support frame (3) and the pressure pad (4) are secondary injection molded.
8. A clamping device according to claim 7, characterized in that: The material of the support frame (3) is PA66+GF30%, and the material of the pressure pad (4) is silica gel.
9. A clamping device according to claim 7, characterized in that: One end of the fixed clamp (1) and / or the movable clamp (2) is provided with a guide arc surface (204), and a groove (205) is provided on the arc surface.
10. A blood purification device, characterized in that: It has a clamping device as claimed in any one of claims 1 to 9.