Endoscope tube connecting structure and endoscope

Abstract

The utility model discloses an endoscope tube body connecting structure and endoscope, including first tube body and second tube body, still include connecting ring, be provided with at least one group of cut -groove structure on connecting ring, and cut -groove structure includes upper cut -groove and lower cut -groove, and upper cut -groove extends from the upper end to the lower end of connecting ring, and lower cut -groove extends from the lower end to the upper end of connecting ring, and upper cut -groove and lower cut -groove are all half -open structure of one end opening one end closed, and first tube body is fixed in connecting ring one end, and second tube body is fixed in connecting ring other end. The design through cut -groove of connecting ring realizes the change of connecting ring opening diameter, and connecting ring can compensate the gap between first tube body and second tube body, reduces material tolerance influence, satisfies different gap matching demand among specifications, makes the assembly of the insertion pipe more efficient. Moreover, because the transition between the outer diameter of connecting ring and first tube body and second tube body is even, the insertion pipe connecting place after assembling has no protrusion, can improve the production efficiency and production quality of product.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an endoscope tube connection structure and an endoscope. Background Technology

[0002] An endoscope is an instrument that enters the body through natural passages to perform examinations or treatments. An endoscope typically includes a handle and an insertion tube. The end of the insertion tube is connected to a bend tube, which can be bent in multiple directions. The tip of the bend tube is also connected to a tip.

[0003] The current common installation method involves interlocking the bent tube and the insertion tube, then securing them together at the joint using adhesive or heat fusion. However, due to manufacturing precision issues or differences in structural design, there is often a discrepancy in the dimensions of the insertion tube and the bent tube. If the joint is too large, the connection is weak and adhesive application is difficult; if the joint is too small, it becomes difficult to insert, resulting in low installation efficiency. Furthermore, adhesive overflow often occurs during application, leading to inconsistent appearance of the produced insertion tubes and substandard product appearance and quality. Existing insertion tube connection structures and processes have problems, reducing output and production capacity, and impacting product quality. Utility Model Content

[0004] In order to overcome at least one of the technical problems of the prior art, the present invention provides an endoscope tube connection structure and endoscope that allows for quick and secure connection of the insertion tube and the bending tube, maintaining a beautiful and firm connection.

[0005] An endoscope tube connection structure is provided, including a first tube and a second tube, and a connecting ring. The connecting ring is provided with at least one set of groove structures, including an upper groove and a lower groove. The upper groove extends from the upper end to the lower end of the connecting ring, and the lower groove extends from the lower end to the upper end of the connecting ring. Both the upper groove and the lower groove are semi-open structures with one end open and the other end closed. The first tube is fixed to one end of the connecting ring, and the second tube is fixed to the other end of the connecting ring.

[0006] The aforementioned endoscope tube connection structure has at least the following beneficial effects: By connecting the first and second tubes with a connecting ring, the connecting ring can compensate for the gap between the first and second tubes, reducing the impact of material tolerances and meeting the matching requirements of different specifications. The connecting ring's slotted opening expansion design allows for variations in the ring's opening diameter, facilitating its fitting onto larger tubes and also making it easier to fit smaller diameter tubes onto the connecting ring, thus making tube assembly more convenient and efficient. With the connecting ring between the first and second tubes, the outer diameter transition of all three is uniform, ensuring that the assembled insertion tube has no protrusions outside the connection, maintaining the consistency of the insertion tube, and improving product production efficiency and quality.

[0007] In some embodiments of the aforementioned endoscope tube connection structure, the edges of the openings at the upper and lower grooves are arc-shaped. When the upper and lower grooves are opened, the openings widen, and the edges on both sides of the openings are rounded. The arc-shaped structure lacks sharp points, preventing punctures to the outer sheath of the insertion tube, thus ensuring the overall structural integrity of the insertion tube and guaranteeing product quality.

[0008] In some embodiments of the aforementioned endoscope tube connection structure, the end grooves of the upper and lower grooves are configured as curved arcs or zigzags. When the end grooves open, they are subjected to a pulling force to both sides. The curved groove structure reduces local tension in the end grooves, avoiding the risk of the connecting ring breaking due to the grooves being pulled apart, thus ensuring structural integrity and safe use.

[0009] In some embodiments of the above-described endoscope tube connection structure, the end grooves of the upper and lower grooves are bent in opposite directions. Bending in opposite directions reduces the area occupied by the groove structure and separates the parts of the upper and lower grooves that are most prone to breakage due to deformation, thereby improving the strength of the connecting ring and ensuring safety in use.

[0010] In some embodiments of the above-described endoscope tube connection structure, a rigid connecting tube is provided, which is connected to a connecting ring. The first tube body is sleeved on the connecting tube, and the connection end between the connecting tube and the first tube body is a beveled cut. The connecting tube can extend the length of the connection portion, and the beveled cut of the connecting tube facilitates the fitting of the first tube body, thereby increasing the reliability of the connection.

[0011] The upper and lower cuts are parallel to each other and are perpendicular to the end face of the connecting ring. When the cuts expand under force, the upper and lower cuts expand in the same direction, allowing the connecting ring to expand evenly and avoiding the risk of breakage due to uneven stress on the cuts.

[0012] In some embodiments of the above-described endoscope tube connection structure, the height of the upper and lower grooves is greater than half the height of the connecting ring. Selecting an appropriate groove height allows for easier and faster expansion and contraction of the grooves, ensuring that the connecting ring possesses both good strength and deformation elasticity.

[0013] An endoscope is also provided, including an insertion tube comprising a first tube body, a second tube body, and a connecting ring as described above. The connecting ring connects the first tube body and the second tube body, and an outer sleeve is fitted over the first tube body, the second tube body, and the connecting ring. This connection structure of the insertion tube facilitates endoscope assembly, improves endoscope production efficiency, and increases the connection strength of the insertion tube, ensuring safe use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0016] Figure 2 This utility model Figure 1 A partial sectional view at point A in the middle;

[0017] Figure 3 This is a schematic diagram of the connecting ring structure according to the first embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the connecting ring in the second embodiment of the present invention. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0021] Reference Figures 1 to 4 An endoscope tube connection structure includes a first tube 100 and a second tube 200, and a connecting ring 300. The first tube 100 and the second tube 200 are connected to form the insertion tube of the endoscope. The connecting ring 300 connects the first tube 100 and the second tube 200. The first tube 100 and the second tube 200 can be one or both of rigid and flexible tubes. The rigid tube can be made of different materials such as metal or composite materials, while the flexible tube can be made of different materials such as plastic or fiber. The connecting ring 300 can be made of plastic or metal and has a certain degree of elastic deformation.

[0022] At least one set of slotted structures is provided on the connecting ring 300. Each set of slotted structures includes an upper slot 310 and a lower slot 320. The upper slot 310 extends from the upper end to the lower end of the connecting ring 300, and the lower slot 320 extends from the lower end to the upper end of the connecting ring 300. It should be noted that when the opening of the connecting ring 300 is vertically set, in this embodiment, "upper" refers to the upper side of the opening of the connecting ring 300, and "lower" refers to the lower side of the opening of the connecting ring 300. When the opening of the connecting ring 300 is horizontally set, "upper" refers to the left side of the opening of the connecting ring 300, and "lower" refers to the right side of the opening of the connecting ring 300. The "upper" and "lower" positions refer to the two ends of the connecting ring 300.

[0023] The upper groove 310 and the lower groove 320 extend from both ends of the connecting ring 300 to the other end. Both grooves are semi-open structures with one end open and the other end closed, wherein one end of the connecting ring 300 is the open end, and the inner end of the connecting ring 300 is the closed end. Referring to the embodiment in the accompanying drawings, the openings of the upper groove 310 and the lower groove 320 are located at both ends of the connecting ring 300, and the closed ends of the upper groove 310 and the lower groove 320 extend onto the ring body of the connecting ring 300.

[0024] When the connecting ring 300 is installed, the first tube 100 is fixed to one end of the connecting ring 300, and the second tube 200 is sleeved on the other end of the connecting ring 300. In some cases, an outer sleeve 500 is also sleeved around the first tube 100, the second tube 200, and the connecting ring 300. The first tube 100 and the second tube 200 can be inserted into or sleeved on the connecting ring 300 respectively. The connecting ring 300 can compensate for the gap between the first tube 100 and the second tube 200, reduce the impact of material tolerances on part assembly, and meet the matching requirements of different specifications of gaps. Through the opening design of the groove, when one end of the connecting ring 300 is subjected to an outward expanding force, the tube walls on both sides of the groove separate along the groove. When the connecting ring 300 is subjected to an inward squeezing force, the tube walls on both sides of the groove shrink and overlap along the groove, thereby increasing or decreasing the diameter of the end of the connecting ring 300. The connecting ring 300 allows for easy installation of tubes of different diameters at both ends, making the assembly of the insertion tube and the bent tube more convenient and efficient. Furthermore, the connecting ring 300 serves as a transition between the first tube 100 and the second tube 200, ensuring a uniform transition of the insertion tube at the connection point. This results in no protrusions at the connection point after assembly, maintaining consistent outer diameter and improving production efficiency and quality.

[0025] Referring to the embodiment in the accompanying drawings, two sets of groove structures are provided on the connecting ring 300. The two sets of groove structures are symmetrically arranged with respect to the center of the connecting ring 300, and the upper groove 310 and lower groove 320 of the two sets of groove structures have the same shape. The symmetrical arrangement of the two sets of groove structures can make the connecting ring 300 deform evenly, which is convenient for installation and use.

[0026] Furthermore, the cut edges of the opening ends of the upper cut groove 310 and the lower cut groove 320 are set as arc-shaped edges. When the tube is inserted into the connecting ring 300, the connecting ring 300 is opened, the opening ends of the upper cut groove 310 and / or the lower cut groove 320 open, and the tube walls on both sides of the opening separate from each other. In this embodiment, the corners of the tube walls on both sides of the cut groove opening are arc-shaped rounded corners. The arc-shaped structure is more rounded than the right-angle structure, which will not pierce the outer sleeve of the inserted tube, nor will it have sharp corners inserted into the connected tube body, thus ensuring the overall structural integrity of the inserted tube and guaranteeing the quality of the product.

[0027] Furthermore, the end grooves of the closed ends of the upper groove 310 and lower groove 320 are configured as arcs or zigzags bending to one side. When the connecting ring 300 is opened, the ends of the upper groove 310 and lower groove 320 on the ring body will be subjected to tension pulling to both sides. If the groove is straight, the end of the groove will be the endpoint of the straight line. When the endpoint is subjected to excessive tension from both sides, the groove will tear along the extension direction of the endpoint, causing the connecting ring 300 to break. By setting the end of the groove as an arc or zigzag, the tension originally borne by the endpoint is distributed by the line segment, which reduces the local tension of the groove, avoids the risk of the groove being pulled apart, and ensures that the connecting ring 300 is structurally intact during installation and can be used safely.

[0028] In the first embodiment, the ends of the upper groove 310 and the lower groove 320 are arc-shaped, and the arc-shaped ends of the upper groove 310 and the lower groove 320 bend and extend in opposite directions. In some embodiments not shown, the ends of the grooves are also set as wavy lines, or triangles or polygons formed by bending lines, and the bending directions of the ends of the upper groove 310 and the lower groove 320 are opposite. The connecting ring 300 is subjected to the greatest force and is most prone to breakage at the endpoints and apex of the curved grooves. Separating the parts of the upper groove 310 and the lower groove 320 that are most prone to breakage by deformation improves the strength of the connecting ring, ensures safety in use, and reduces the area occupied by the groove structure, allowing processing on a small connecting ring 300.

[0029] In the second embodiment, the upper groove 310 and the lower groove 320 are straight lines, and are arranged parallel to each other. The upper groove 310 and the lower groove 320 are perpendicular to the end of the connecting ring 300. In this embodiment, the connecting ring 300 can also deform along the longitudinal direction of the groove.

[0030] In some embodiments, a rigid connecting pipe 400 is also provided. The connecting pipe 400 is connected to the connecting ring 300, and the first pipe body 100 is sleeved on the connecting pipe 400. The connection end between the connecting pipe 400 and the first pipe body 100 is a beveled cut 410. The connecting pipe 400 connects the connecting ring 300 and the pipe body, increasing the length of contact and fixation with the pipe body, making the connection between the pipe body, the connecting pipe 400, and the connecting ring 300 more secure. For ease of installation, the beveled cut at one end of the connecting pipe 400 facilitates the insertion of the first pipe body 100, and the connecting pipe 400 increases the reliability of the connection.

[0031] Referring to the embodiment in the accompanying drawings, the upper groove 310 and the lower groove 320 are divided into open ends and closed ends, wherein the open ends are straight structures and the closed ends are curved structures. The open ends of the straight structures of the upper groove 310 and the lower groove 320 are perpendicular to the end face of the connecting ring 300, and the straight open ends are parallel to each other. When the grooves expand under force, the upper groove 310 and the lower groove 320 expand in the same direction, allowing the connecting ring 300 to expand uniformly and avoiding the risk of breakage due to uneven force on the grooves.

[0032] The heights of the upper groove 310 and the lower groove 320 are greater than half the height of the connecting ring 300. The height of the upper groove 310 and the lower groove 320 refers to the farthest distance of the groove along the axial direction of the connecting ring 300. In the first embodiment, it refers to the distance from the open end to the lowest point of the arc along the closed end along the axial direction; in the second embodiment, it refers to the overall length of the groove. Selecting an appropriate groove height allows for easier and faster expansion and contraction of the upper groove 310 and the lower groove 320, ensuring that the connecting ring 300 simultaneously possesses good strength and deformation elasticity.

[0033] An endoscope includes an insertion tube 600, which comprises a first tube body 100, a second tube body 200, and a connecting ring 300 as described above. The connecting ring 300 connects the first tube body 100 and the second tube body 200. An outer sleeve 500 is also fitted over the first tube body 100, the second tube body 200, and the connecting ring 300. The connection structure of the insertion tube 600 facilitates endoscope assembly, improves endoscope production efficiency, and increases the connection strength of the insertion tube 600, ensuring safe use.

[0034] The above is a detailed description of the preferred embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. Other embodiments that can be obtained are all within the protection scope of the present utility model.

Claims

1. An endoscope tube connection structure, comprising a first tube (100) and a second tube (200), characterized in that: Also includes A connecting ring (300) is provided with at least one set of groove structures. Each groove structure includes an upper groove (310) and a lower groove (320) spaced apart. The upper groove (310) extends from the upper end to the lower end of the connecting ring (300), and the lower groove (320) extends from the lower end to the upper end of the connecting ring (300). Both the upper groove (310) and the lower groove (320) are semi-open structures with one end open and the other end closed. The first tube (100) is fixed to one end of the connecting ring (300), and the second tube (200) is fixed to the other end of the connecting ring (300).

2. The endoscope tube connection structure according to claim 1, characterized in that: The edges of the cuts at the openings of the upper cut (310) and lower cut (320) are arc-shaped.

3. The endoscope tube connection structure according to claim 1, characterized in that: The end grooves of the upper groove (310) and the lower groove (320) are set as curved arcs or broken lines.

4. The endoscope tube connection structure according to claim 3, characterized in that: The end grooves of the upper groove (310) and the lower groove (320) are bent in opposite directions.

5. The endoscope tube connection structure according to claim 1, characterized in that: A rigid connecting pipe (400) is provided, the connecting pipe (400) is connected to a connecting ring (300), the first pipe body (100) is sleeved on the connecting pipe (400), and the connection end between the connecting pipe (400) and the first pipe body (100) is a beveled cut (410).

6. The endoscope tube connection structure according to claim 1, characterized in that: The upper cut groove (310) and the lower cut groove (320) are parallel to each other, and the upper cut groove (310) and the lower cut groove (320) are respectively perpendicular to the end face of the connecting ring (300).

7. The endoscope tube connection structure according to claim 1, characterized in that: The heights of the upper groove (310) and the lower groove (320) are greater than half the height of the connecting ring (300).

8. An endoscope, characterized in that: The device includes an insertion tube (600), which includes a first tube body (100), a second tube body (200), and a connecting ring (300) as described in any of claims 1-7. The connecting ring (300) connects the first tube body (100) and the second tube body (200). An outer tube (500) is also sleeved outside the first tube body (100), the second tube body (200), and the connecting ring (300).

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