A liquid polishing positioning device and method for a sampling needle

Abstract

The present invention provides a liquid polishing positioning device and method for a sampling needle. The device includes a liquid inlet adapter member, a supporting and positioning member, an auxiliary sealing member, and an auxiliary positioning member. The liquid polishing positioning device for the sampling needle is assembled with a supporting end plate provided with a plurality of positioning sockets at the end of the liquid inlet pipeline through a detachable connection structure. Multiple sampling needles can be respectively inserted into the positioning sockets and fixed by gluing. The polishing liquid in the liquid inlet pipeline enters the sampling needles to polish the inner walls of the sampling needles. After polishing, the supporting end plate can be removed, the glue is melted by heating, and the residual glue on the surface of the sampling needles is removed after the sampling needles are taken out, so as to achieve the purpose of polishing multiple sampling needles simultaneously, which is beneficial to improving the processing efficiency of the sampling needles.

Description

Technical Field

[0001] The present invention relates to the processing technology of sampling needles, and particularly to a liquid polishing positioning device and method for sampling needles. Background Art

[0002] Sampling needles are key components of in vitro reagent diagnostic devices, and their inner wall roughness requirements are relatively high, generally 0.05 - 0.1 μm, or even higher. Existing liquid polishing or magnetic polishing are both single-workpiece processing, with low efficiency. Therefore, it is necessary to design a liquid polishing positioning device for sampling needles to polish multiple sampling needles simultaneously. Summary of the Invention

[0003] The purpose of the present invention is to provide a liquid polishing positioning device for sampling needles, which is convenient for simultaneously performing liquid polishing on multiple sampling needles.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0005] A liquid polishing positioning device for sampling needles, comprising:

[0006] A liquid inlet transfer member, which has a transfer structure thereon, and its interior is connected to a polishing liquid supply device, and the polishing liquid supply device transports the polishing liquid to the liquid inlet transfer member;

[0007] A supporting and positioning member, which is installed on the liquid inlet transfer member, and has a positioning structure therein. The sampling needle to be polished can be installed on the supporting and positioning member through the positioning structure, so that the sampling needle is connected to the liquid inlet transfer member, and the liquid inlet transfer member transports the polishing liquid into the sampling needle to polish the inner wall of the sampling needle;

[0008] An auxiliary sealing member, which is installed between the liquid inlet transfer member and the supporting and positioning member, and the auxiliary sealing member seals the joint part between the liquid inlet transfer member and the supporting and positioning member;

[0009] An auxiliary positioning member, which is installed in the positioning structure of the supporting and positioning member, and the auxiliary positioning member performs auxiliary positioning on the sampling needle.

[0010] The liquid inlet transfer member includes:

[0011] A liquid inlet pipe, which is connected to the polishing liquid supply device, and the polishing liquid supply device transports the polishing liquid into the liquid inlet pipe;

[0012] A transfer end ring, which is located at the end of the liquid inlet pipe and protrudes outward from the liquid inlet pipe.

[0013] The supporting and positioning member includes:

[0014] A supporting end plate, which is adapted to the shape of the liquid inlet pipe and has an edge connected to the adapter end ring;

[0015] A positioning socket is provided with a group of positioning sockets, each positioning socket is respectively opened in the supporting end plate and connected with the liquid inlet pipeline. The sampling needle is inserted into the positioning socket, and the polishing liquid in the liquid inlet pipeline flows out through the sampling needle to polish the inner wall of the sampling needle.

[0016] The edge of the supporting end plate is connected to the transition end ring by means of fixing bolts. The supporting end plate and the liquid inlet pipe can also be assembled by means of threaded connection or the like.

[0017] A matching boss is provided in the middle of the supporting end plate, and the matching boss protrudes toward the inside of the liquid inlet pipe. The matching boss is used to position the joint between the supporting end plate and the liquid inlet pipe.

[0018] The auxiliary sealing member comprises:

[0019] A sealing gasket is arranged between the edge of the supporting end plate and the adapter end ring, and the sealing gasket is used to seal the joint between the edge of the supporting end plate and the adapter end ring.

[0020] Auxiliary positioning components include:

[0021] The positioning adhesive body is arranged in the positioning socket and cooperates with the sampling needle. The positioning adhesive body is used to bond and position the sampling needle. In one embodiment of the present invention, the positioning adhesive body is formed by filling the gap between the outer wall of the sampling needle and the inner wall of the positioning socket with glue, so that the sampling needle is kept fixed on the supporting end plate. After polishing, the glue can be removed by heating or other methods, so that the sampling needle can be easily removed.

[0022] An accommodating ring groove is formed at the outer end of the positioning socket, and the accommodating ring groove is recessed into the supporting end plate, and the positioning adhesive body is connected between the inner wall of the accommodating ring groove and the outer wall of the sampling needle;

[0023] An expansion interface is provided at the inner end of the positioning socket, the diameter of which is gradually expanded, and the polishing liquid is guided through the expansion interface.

[0024] A sampling needle liquid polishing method is performed using the above-mentioned sampling needle liquid polishing positioning device, and comprises the following steps:

[0025] Insert multiple sampling needles into the positioning sockets of the supporting end plate respectively, and form a positioning adhesive body between the inner wall of the accommodating ring groove and the outer wall of the sampling needles, and then install the supporting end plate carrying the sampling needles at the end of the liquid inlet pipe, so that the polishing liquid enters into multiple sampling needles at the same time, and polishes the inner walls of the sampling needles. After polishing is completed, remove the supporting end plate carrying the sampling needles, and heat it to make the positioning adhesive body fall off. After taking out the sampling needles, clean the residual positioning adhesive body on their surface to complete the polishing of the sampling needles.

[0026] The advantages of the present invention are as follows:

[0027] The liquid polishing positioning device for the sampling needle is assembled with a supporting end plate provided with a plurality of positioning sockets at the end of the liquid inlet pipe through a detachable connection structure. Multiple sampling needles can be respectively inserted into the positioning sockets and fixed by glue bonding, so that the polishing liquid in the liquid inlet pipe enters the sampling needles to polish the inner walls of the sampling needles. After polishing, the supporting end plate can be removed, the glue is melted by heating, and the residual glue on the surface of the sampling needle is removed after taking out the sampling needle, thus achieving the purpose of polishing multiple sampling needles simultaneously, which is beneficial to improving the processing efficiency of the sampling needles. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of the liquid polishing positioning device for the sampling needle proposed by the present invention;

[0029] Figure 2 is an exploded view of the liquid polishing positioning device for the sampling needle;

[0030] Figure 3 is a sectional view of the supporting and positioning member;

[0031] Figure 4 is Figure 3 an enlarged close-up view of part A in;

[0032] Figure 5 is a schematic structural diagram of the positioning socket. Detailed Embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and illustrated herein generally can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0034] As Figures 1 to 5As shown in the figure, the sampling needle liquid polishing positioning device proposed by the present invention includes a liquid inlet transfer member, a supporting and positioning member, an auxiliary sealing member, and an auxiliary positioning member. The liquid inlet transfer member has a transfer structure, and its interior is connected to a polishing liquid supply device. The polishing liquid supply device transports the polishing liquid to the liquid inlet transfer member. The supporting and positioning member is installed on the liquid inlet transfer member, and its interior has a positioning structure. The sampling needle to be polished can be installed on the supporting and positioning member through the positioning structure, so that the sampling needle is connected to the liquid inlet transfer member. The liquid inlet transfer member transports the polishing liquid into the sampling needle to polish the inner wall of the sampling needle. The auxiliary sealing member is installed between the liquid inlet transfer member and the supporting and positioning member, and the auxiliary sealing member seals the joint between the liquid inlet transfer member and the supporting and positioning member. The auxiliary positioning member is installed in the positioning structure of the supporting and positioning member, and the auxiliary positioning member performs auxiliary positioning on the sampling needle. The liquid inlet transfer member includes a liquid inlet pipe 110 and a transfer end ring 120. The liquid inlet pipe is connected to the polishing liquid supply device, and the polishing liquid supply device transports the polishing liquid into the liquid inlet pipe. The transfer end ring is located at the end of the liquid inlet pipe and protrudes outward from the liquid inlet pipe. The supporting and positioning member includes a supporting end plate 210 and a positioning socket 220. The supporting end plate is adapted to the shape of the liquid inlet pipe, and its edge is connected to the transfer end ring. There is a set of positioning sockets, and each positioning socket is respectively opened in the supporting end plate and is connected to the liquid inlet pipe. The sampling needle N is inserted into the positioning socket, and the polishing liquid in the liquid inlet pipe flows out through the sampling needle to polish the inner wall of the sampling needle. In this embodiment, the edge of the supporting end plate is connected to the transfer end ring by a set screw 121. The supporting end plate and the liquid inlet pipe can also be assembled by means of threaded connection or the like. The middle part of the supporting end plate has a mating boss 211, which protrudes into the interior of the liquid inlet pipe, and the mating boss positions the joint between the supporting end plate and the liquid inlet pipe. The auxiliary sealing member includes a sealing gasket 300, and the sealing gasket is disposed between the edge of the supporting end plate and the transfer end ring, and the sealing gasket seals the joint between the edge of the supporting end plate and the transfer end ring. The auxiliary positioning member includes a positioning adhesive body 400, and the positioning adhesive body is disposed in the positioning socket and cooperates with the sampling needle, and the positioning adhesive body performs adhesive positioning on the sampling needle. In an embodiment of the present invention, the positioning adhesive body is formed by filling glue into the gap between the outer wall of the sampling needle and the inner wall of the positioning socket, so that the sampling needle is fixed on the supporting end plate. After polishing, the glue can be removed by heating or other means to facilitate the removal of the sampling needle. An accommodation ring groove 221 is opened at the outer end of the positioning socket, and the accommodation ring groove is recessed into the supporting end plate. The positioning adhesive body is joined between the inner wall of the accommodation ring groove and the outer wall of the sampling needle. A diameter-expanded interface 222 is opened at the inner end of the positioning socket, and the diameter of the diameter-expanded interface gradually increases, and the diameter-expanded interface guides the polishing liquid.

[0035] The sampling needle liquid polishing method proposed by the present invention is carried out by using the above-mentioned sampling needle liquid polishing positioning device, and includes the following steps: inserting multiple sampling needles into the positioning sockets of the supporting end plate respectively, and forming a positioning adhesive body between the inner wall of the accommodating ring groove and the outer wall of the sampling needle. Then, install the supporting end plate carrying the sampling needles at the end of the liquid inlet pipeline, so that the polishing liquid enters multiple sampling needles at the same time, and polish the inner wall of the sampling needles. After polishing, remove the supporting end plate carrying the sampling needles, and make the positioning adhesive body fall off by heating. After taking out the sampling needles, clean the residual positioning adhesive body on their surfaces to complete the polishing treatment of the sampling needles.

[0036] The sampling needle liquid polishing positioning device is assembled with a supporting end plate provided with multiple positioning sockets at the end of the liquid inlet pipeline through a detachable connection structure. Multiple sampling needles can be respectively inserted into the positioning sockets and fixed by glue bonding, so that the polishing liquid in the liquid inlet pipeline enters the sampling needles to polish the inner walls of the sampling needles. After polishing, the supporting end plate can be removed, the glue is melted by heating, and the residual glue on the surface of the sampling needles is removed after taking out the sampling needles, so as to achieve the purpose of polishing multiple sampling needles at the same time, which is beneficial to improving the processing efficiency of the sampling needles.

[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected" should be understood in a broad sense. For example, "connected" 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, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A liquid polishing positioning device for a sampling needle, characterized in that Comprising: A liquid inlet adapter member having an adapter structure thereon, which is internally connected to a polishing liquid supply device, and the polishing liquid supply device conveys the polishing liquid to the liquid inlet adapter member; A supporting and positioning member installed on the liquid inlet adapter member, having a positioning structure therein, and the sampling needle to be polished can be installed on the supporting and positioning member through the positioning structure, so that the sampling needle is connected to the liquid inlet adapter member, and the polishing liquid is conveyed from the liquid inlet adapter member into the sampling needle to polish the inner wall of the sampling needle; An auxiliary sealing member installed between the liquid inlet adapter member and the supporting and positioning member, and the auxiliary sealing member seals the joint portion between the liquid inlet adapter member and the supporting and positioning member; An auxiliary positioning member installed in the positioning structure of the supporting and positioning member, and the auxiliary positioning member performs auxiliary positioning on the sampling needle; The supporting and positioning member includes: A supporting end plate, which is adapted to the shape of the liquid inlet pipe, and its edge is connected to the adapter end ring; A set of positioning sockets, each positioning socket is respectively opened in the supporting end plate and communicated with the liquid inlet pipe; The auxiliary positioning member includes: A positioning adhesive body disposed in the positioning socket and cooperating with the sampling needle; An accommodating ring groove is opened at the outer end of the positioning socket, which is recessed into the supporting end plate, and the positioning adhesive body is joined between the inner wall of the accommodating ring groove and the outer wall of the sampling needle; An enlarged diameter interface is opened at the inner end of the positioning socket, and the diameter of the enlarged diameter interface gradually increases to divert the polishing liquid; The liquid inlet adapter member includes: A liquid inlet pipe, which is connected to the polishing liquid supply device; An adapter end ring located at the end of the liquid inlet pipe and protruding outward from the liquid inlet pipe.

2. A liquid polishing positioning device for a sampling needle according to claim 1, wherein: The edge of the supporting end plate and the adapter end ring are connected by a set screw.

3. A liquid polishing positioning device for a sampling needle according to claim 1, wherein: A mating boss is provided in the middle of the supporting end plate, and the mating boss protrudes into the liquid inlet pipe.

4. The liquid polishing positioning device for a sampling needle according to claim 1, characterized in that, The auxiliary sealing member includes: A sealing gasket, which is disposed between the edge of the supporting end plate and the adapter end ring.

5. A liquid polishing method for a sampling needle, which is carried out by using the sampling needle liquid polishing positioning device described in any one of claims 1 to 4, and is characterized in that, Including the following steps: Insert multiple sampling needles into the positioning sockets of the supporting end plate respectively, and form a positioning adhesive body between the inner wall of the accommodating ring groove and the outer wall of the sampling needle. Then install the supporting end plate carrying the sampling needles at the end of the liquid inlet pipe, so that the polishing liquid enters multiple sampling needles simultaneously to polish the inner walls of the sampling needles. After polishing, remove the supporting end plate carrying the sampling needles, and make the positioning adhesive body fall off by heating. After taking out the sampling needles, clean the residual positioning adhesive body on their surfaces to complete the polishing treatment of the sampling needles.

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