A threading device for endoscope pipeline

Abstract

The present invention relates to a threading device for endoscope pipelines, comprising a square base plate, with a square extension column extending upward from the center of the upper surface of the base plate, the extension column being coaxial with the base plate and having a width less than the width of the base plate; a U-shaped slot extending from the bottom surface of the base plate to the top surface of the extension column is provided at the middle position corresponding to each of the four corners and four sides of the base plate, the bottom of the U-shaped slot being an arc-shaped structure and being provided adjacent to the center of the base plate, with the tops of the bottoms of the multiple U-shaped slots being located on the same circumference with the center of the base plate as the center; a removable matching sleeve is provided on the outside of the extension column with a retaining ring having the same height as the extension column, and the inner wall of the retaining ring is a chamfered structure corresponding to the four corners of the extension column. This invention solves the problem of wire entanglement during pipeline threading in the production of the insertion portion of an endoscope, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to the production of endoscopes, in particular to a threading device for endoscope pipelines. Background Art

[0002] Endoscopes are a type of detection instrument that is currently widely used in medicine or industry. Due to their different application sites, they have different shapes and structures, but they are basically composed of a lens, an insertion part and a control end. The outside of the insertion part is made of a metal or plastic catheter, and inside the catheter are pipelines such as lighting optical fiber, image transmission optical fiber, and angle control line made of steel wire rope for adjusting the lens angle. Since the length of the insertion part is usually relatively long, the length of the pipeline is also relatively long. During production, these pipelines are also inserted into the catheter at one time. When inserting into the catheter, these pipelines cannot be cross-inserted, that is, the pipelines must be straightened in advance so that they do not cross each other. At the same time, the pipelines cannot be cross-entangled after inserting into the catheter, otherwise it will affect their respective functions. In particular, if the angle control lines are cross-entangled, the angle of the lens cannot be adjusted, so that the endoscope loses the function of angle adjustment. There is no corresponding device in the prior art to solve this problem. Usually, on a longer operating table, each pipeline is laid flat on the table, and then the head of each pipeline is straightened and fixed, and then the straightened and fixed head is inserted into the catheter. As the head moves in the catheter, the rest of the pipeline is inserted into the catheter. During this process, the pipeline will leave the table. Since the pipelines are relatively long, except for the head that is straightened and fixed, the rest of the pipeline will be cross-entangled as the head moves. At this time, the pipelines have to be straightened repeatedly manually, which sometimes causes the cross-entangled pipelines to be inserted into the catheter, resulting in low production efficiency. Summary of the Invention

[0003] In view of the existing deficiencies, the present invention provides a threading device for endoscope pipelines.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a threading device for endoscope pipelines, comprising a square base plate, with a square extension column extending upward from the center of the upper surface of the base plate, which is coaxial with the base plate and has a width less than the width of the base plate; the base plate is provided with a U-shaped card groove extending from the bottom surface of the base plate to the top surface of the extension column at the middle position corresponding to the four corners and the four sides, the groove bottom of the U-shaped card groove is an arc-shaped structure and is arranged adjacent to the center of the base plate, and the top ends of the bottoms of multiple U-shaped card grooves are on the same circumference with the center of the base plate as the center of the circle; a detachable matching sleeve is provided on the outside of the extension column with a retaining ring of the same height as the extension column, and the inner wall of the retaining ring is a chamfered structure corresponding to the four corners of the extension column; the outer wall of the extension column and the inner wall of the retaining ring are provided with matching clamping blocks and sliding grooves.

[0005] Preferably, each open end of the U-shaped slot has rounded corners.

[0006] Preferably, the sum of the width of the extension column and twice the thickness of the retaining ring is the same as the width of the base plate.

[0007] Preferably, a position adjacent to the edge of the upper surface of the base plate and a bottom end surface of the retaining ring are provided with positioning columns and positioning holes that can be matched and engaged.

[0008] The beneficial effects of the present invention are as follows: the invention utilizes multiple U-shaped slots on the base plate to pass different pipelines therethrough, utilizes retaining rings to confine the pipelines in the U-shaped slots to prevent the pipelines from falling off the U-shaped slots, and confines each pipeline to move in the corresponding U-shaped slots. At the same time, the base plate gradually moves toward the tail of the pipeline as the pipeline is inserted into the catheter. Since the U-shaped slots are spaced apart, the pipelines are separated and straightened during the movement of the base plate, avoiding cross-entanglement of the pipelines when they are inserted into the catheter, solving the problem of wire entanglement when the pipelines are threaded in the production of the insertion part of the endoscope, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of an embodiment of the present invention;

[0010] Figure 2 is a schematic structural diagram of a base plate and an extension column according to an embodiment of the present invention;

[0011] Figure 3 A schematic structural diagram of a retaining ring according to an embodiment of the present invention;

[0012] The names and serial numbers of the parts in the figure are: 1-base plate 2-extension column 3-U-shaped slot 4-retaining ring 5-block 6-slide 7-positioning column 8-positioning hole. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with embodiment, and is described clearly and completely, and it should be understood that these embodiments are for illustrating the present invention and are not limited to the scope of limiting the present invention. The implementation conditions adopted in the embodiment can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not indicated are generally the conditions in routine experiments. In addition, the directional terms mentioned in the present invention, for example, "up", "down", "front", "back", "left", "right", "inside", "outside" etc., are only with reference to the directions of the attached diagrams, and the directional terms used are in order to better and more clearly illustrate and understand the present invention, rather than to indicate or allude to the orientation that the present invention must have, and therefore can not be construed as limitations of the present invention.

[0014] The present invention is implemented as follows Figures 1 to 3As shown in, a threading device for endoscope pipelines comprises a square base plate 1, and a square extension column 2 with a coaxial center line with the base plate 1 and a width less than the width of the base plate is extended upward from the center of the upper surface of the base plate 1. The extension column 2 and the base plate 1 form an inverted T-shaped structure, which facilitates the installation of the retaining ring 4 on the extension column 2 and also prevents the retaining ring 4 from falling off from one end of the base plate 1 as the base plate 1 moves; the base plate 1 is provided with a U-shaped card groove 3 extending from the bottom surface of the base plate 1 to the top surface of the extension column 2 at the middle position corresponding to the four corners and the four sides, that is, eight U-shaped card grooves 3 are provided on the base plate 1, and the eight U-shaped card grooves 3 correspond to the positions The U-shaped slots 3 are located at the four corners of the bottom plate 1, that is, at the two ends of the two focal lines of the bottom plate 1, and in the middle of the four sides of the bottom plate 1, so that the eight U-shaped slots 3 form a structure similar to a rice character. The upper end of the U-shaped slot 3 is flush with the top surface of the extension column 2, and the lower end of the U-shaped slot 3 is flush with the bottom surface of the bottom plate 1, which is convenient for the pipeline to be passed through the U-shaped slot 3. The bottom of the U-shaped slot 3 is an arc-shaped structure and is arranged near the center of the bottom plate 1. The top ends of the bottoms of the multiple U-shaped slots 3 are on the same circumference with the center of the bottom plate 1 as the center. The arc-shaped slot bottom makes each position of the slot bottom the same, and there is no sharp corner for the pipeline, which avoids the pipeline from getting stuck. The problem of the line being stuck by the sharp corner after passing through the U-shaped slot 3 occurs. The bottom of the U-shaped slot 3 is adjacent to the center of the bottom plate 1, which means that the open end of the U-shaped slot 3 is at the edge of the bottom plate 1, and the top ends of the bottoms of multiple U-shaped slots 3 are on the same circumference with the center of the bottom plate 1 as the center, which means that the distance between each U-shaped slot 3 and the center of the bottom plate 1 is equal. In this way, after multiple pipelines are correspondingly inserted into different U-shaped slots 3, the bottom plate 1 is subjected to the same force from each pipeline during the movement of the bottom plate 1, which ensures the smooth movement of the bottom plate 1; the outer detachable matching sleeve of the extension column 2 is provided with a retaining ring with the same height as the extension column 2 4. The setting of the retaining ring 4 closes the part of the open end of the U-shaped slot 3 corresponding to the extension column 3, thereby preventing the pipeline inserted into the U-shaped slot 3 from falling off the U-shaped slot 3. The shape of the inner ring of the retaining ring 4 is equivalent to the shape and size of the extension column 3, that is, the inner ring of the retaining ring 4 is also a square structure, and the inner wall of the retaining ring 4 corresponds to the four corners of the extension column 3 into a chamfered structure, that is, the four corners of the inner ring of the retaining ring 4 are rounded structures, so that there will be no sharp corners in the inner ring of the retaining ring 4, avoiding the problem of pipeline jamming. Correspondingly, there are rounded corners at the open end of each U-shaped slot 3, which further avoids the pipeline from getting stuck in the U-shaped slot 3 when the base plate 1 moves.In actual use, first straighten and fix each pipeline at the head of the pipeline, and then insert each pipeline into different U-shaped slots 3 of the bottom plate 1 in sequence at the position adjacent to the head, and insert one pipeline into a U-shaped slot 3, with the bottom plate 1 facing the head of the pipeline and the extension column 2 facing the tail of the pipeline. Then, at the tail of the pipeline, insert each pipeline into the retaining ring 4 and move the retaining ring 4 onto the extension column 2, so that each pipeline is correspondingly enclosed in each U-shaped slot 3, and the pipeline will not fall off from the U-shaped slot 3. Finally, insert the straightened and fixed pipeline head into the catheter. As the pipeline head moves in the catheter, the bottom plate 1 and the retaining ring 3 move toward the tail of the pipeline. Since the U-shaped slots 3 are spaced apart, there will be no cross-entanglement between the pipelines. For the front part of the pipeline, that is, the part of the pipeline between the base plate 1 and the catheter, on the one hand, the distance between the base plate 1 and the catheter will not be too large. On the other hand, the fixation of the base plate 1 and the pipeline head forms two force points for each pipeline, so that the pipeline in this part is in a stretched and stretched state. For the rear part of the pipeline, the rear part of each pipeline is separated and straightened during the movement of the base plate 1, avoiding cross-entanglement of the pipeline when inserting into the catheter, solving the problem of wire entanglement when threading the pipeline in the production of the insertion part of the endoscope, and improving production efficiency.

[0015] Further improvements, such as Figure 1 As shown in the figure, the sum of the width of the extension column 2 and twice the thickness of the retaining ring 4 is the same as the width of the base plate 1, that is, the distance between the outer wall of the extension column 2 and the outer wall of the base plate 1 is the thickness of the retaining ring 4 wall, so that when the retaining ring 4 is mounted on the extension column 2, it will not protrude from the edge of the base plate 1, thereby facilitating the movement of the base plate 1.

[0016] In order to ensure that the connection structure between the retaining ring 4 and the extension column 2 is stable after the retaining ring 4 is sleeved on the extension column 2, as shown in FIG. Figure 2 and Figure 3 As shown in the figure, a block 5 and a slide groove 6 that can match each other are provided on the outer wall of the extension column 2 and the inner wall of the retaining ring 4, that is, a block 5 is provided on the outer wall of the extension column 2, and a slide groove 6 is provided on the inner wall of the retaining ring 4. After the retaining ring 4 is sleeved on the extension column 2, the block 5 is engaged in the slide groove 6 to position the retaining ring 4, or the slide groove 6 is provided on the outer wall of the extension column 2, and the block 5 is provided on the inner wall of the retaining ring 4. No matter which method is used, the block 5 and the slide groove 6 extend along the axial direction of the components on which they are provided, which facilitates the engagement between the retaining ring 4 and the extension column 2.

[0017] Further improvements, such as Figure 2 and Figure 3As shown, matching positioning posts 7 and positioning holes 8 are provided on the position adjacent to the edge of the upper surface of the base plate 1 and on the bottom end face of the retaining ring 4. That is to say, the positioning posts 7 and the positioning holes 8 are provided on the opposite surfaces between the retaining ring 4 and the base plate 1 after the retaining ring 4 is sleeved on the extension post 2. The positioning posts 7 and the positioning holes 8 are engaged between the base plate 1 and the retaining ring 4, so that the base plate 1 will not be separated from the retaining ring 4 during the movement, and the consistency of movement is maintained. That is, when the positioning posts 7 are provided on the base plate 1, the positioning holes 8 are provided on the retaining ring 4. When the positioning holes 8 are provided on the base plate 1, the positioning posts 7 are provided on the retaining ring 4. As long as the positioning posts 7 and the positioning holes 8 can match and engage with each other, it will be fine.

[0018] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the present invention. Therefore, such modifications and improvements, which do not depart from the spirit of the present invention, are intended to fall within the scope of protection claimed herein.

Claims

1. A threading device for an endoscope line, characterized in that: The invention comprises a square base plate, wherein a square extension column which is coaxial with the base plate and has a width less than the width of the base plate is extended upward from the center of the upper surface of the base plate; the base plate is provided with a U-shaped card groove extending from the bottom surface of the base plate to the top surface of the extension column at the middle position corresponding to the four corners and the four sides, the groove bottom of the U-shaped card groove is an arc-shaped structure and is arranged adjacent to the center of the base plate, and the top ends of the groove bottoms of the multiple U-shaped card grooves are on the same circumference with the center of the base plate as the center; the extension column is provided with a detachable matching sleeve with a retaining ring of the same height as the extension column, and the inner wall of the retaining ring is a chamfered structure corresponding to the four corners of the extension column; the outer wall of the extension column and the inner wall of the retaining ring are provided with matching card blocks and sliding grooves.

2. The threading device for endoscope tubing according to claim 1, characterized in that : Each of the U-shaped slot opening ends has rounded corners.

3. The threading device for endoscope tubing according to claim 1, characterized in that :The sum of the width of the extension column and twice the thickness of the retaining ring is the same as the width of the base plate.

4. The threading device for endoscope tubing according to claim 1, characterized in that : Positioning columns and positioning holes that can match and engage with each other are provided on the upper surface of the base plate near the edge and on the bottom end surface of the retaining ring.

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