Steel wire tightness adjusting mechanism and endoscope device thereof

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a steel wire tightness adjusting mechanism and an endoscope device thereof. The utility model discloses a steel wire tightness adjusting mechanism. The adjusting mechanism comprises a steel wire; one end of the fixing block is fixedly connected with the steel wire; the adjusting nut abuts against the other end of the fixing block, and the adjusting nut is used for adjusting the tightness of the steel wire; a containing cavity is formed in the center of the connecting block in the length direction, and the containing cavity is used for containing the fixing block and the adjusting nut.

Description

TECHNICAL FIELD

[0001] The utility model belongs to medical instrument technical field, especially relate to a steel wire tightness adjusting mechanism and endoscope device thereof. BACKGROUND

[0002] The soft endoscope operating handle is provided with a corner hand wheel for controlling the bending action of the bending part of the endoscope. The bending action of the bending part can be controlled by controlling the hand wheel. The force is transmitted between the operating part hand wheel and the bending part through the traction wire rope. However, after a period of use, the traction wire is relaxed due to certain plastic deformation, and the transmission error of the force from the operating part hand wheel to the bending part is large. At present, in the endoscope wire rope adjusting device, only multi-stage adjustment can be performed on the wire rope, and stepless adjustment cannot be performed. Moreover, the stress point of the wire rope adjusting device deviates from the center axis of the wire rope, which can cause the wire rope to deviate during the stress process and rub against the sleeve, thereby being damaged and reducing the service life. SUMMARY

[0003] The utility model discloses a steel wire tightness adjusting mechanism and endoscope device thereof to solve the above problems.

[0004] In the first aspect, a steel wire tightness adjusting mechanism adopts the following technical scheme:

[0005] A steel wire tightness adjusting mechanism comprises:

[0006] A steel wire;

[0007] A fixed block, one end of the fixed block is fixedly connected with the steel wire;

[0008] An adjusting nut, the other end of the fixed block abuts against the adjusting nut, and the adjusting nut is used for adjusting the tightness of the steel wire;

[0009] A connecting block, a containing cavity is formed in the center of the connecting block along the length direction, and the containing cavity is used for containing the fixed block and the adjusting nut.

[0010] Further, a first through hole is formed in the center of the fixed block along the length direction, and one end of the steel wire is arranged in the first through hole and fixedly connected with one end of the fixed block.

[0011] Further, a second through hole is formed in the center of the adjusting nut along the length direction, and the other end of the steel wire is arranged in the second through hole and extends outward.

[0012] Further, the inner wall of the containing cavity is provided with threads, the connecting block is tightly connected with the adjusting nut through the threads, and the fixed block abuts against the adjusting nut.

[0013] Further, the end of the fixed block abutting against the adjusting nut is provided with a conical convex surface, and the end of the adjusting nut abutting against the fixed block is provided with a conical concave surface, the conical convex surface and the conical concave surface are embedded and abut against each other.

[0014] Further, the surface of the connecting block is provided with an anticorrosion and antiskid layer.

[0015] Further, the adjusting mechanism further comprises a chain, and two ends of the chain are respectively hinged to the connecting block.

[0016] In the second aspect, the endoscope device adopts the technical scheme as follows:

[0017] The endoscope device comprises an endoscope and the steel wire tightness adjusting mechanism.

[0018] The endoscope device comprises an endoscope and the steel wire tightness adjusting mechanism.

[0019] The steel wire tightness adjusting mechanism can realize stepless adjustment of the steel wire tightness, and significantly improves the adjustment precision and convenience. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a structural view of the steel wire tightness adjusting mechanism;

[0021] Figure 2 Fig. 1 is a structural view of the steel wire tightness adjusting mechanism;

[0022] Figure 3 Fig. 1 is a structural view of the steel wire tightness adjusting mechanism;

[0023] Figure 4 Fig. 1 is a structural view of the steel wire tightness adjusting mechanism;

[0024] Fig. 1 is a structural view of the steel wire tightness adjusting mechanism; DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will combine the drawings to make the application further detailed description, the described embodiment should not be regarded as the limitation of the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0026] In the following description, "some embodiments" are related to the description of a subset of all possible embodiments, but it can be understood that "some embodiments" can be the same subset or different subset of all possible embodiments, and can be combined with each other without conflict. Unless otherwise defined, all technical and scientific terms used in the embodiments of the utility model are the same as the meanings commonly understood by the persons skilled in the art belonging to the technical field of the embodiments of the utility model. The terms used in the embodiments of the utility model are only for the purpose of describing the embodiments of the utility model, not intended to limit the utility model.

[0027] As Figure 1 shown. The embodiment provides a steel wire tightness adjusting mechanism, and the adjusting mechanism 1 comprises:

[0028] a steel wire 10;

[0029] a fixed block 20, one end of the fixed block 20 is fixedly connected with the steel wire 10;

[0030] an adjusting nut 30, the adjusting nut 30 is abutted with the other end of the fixed block 20, and the adjusting nut 30 is used for adjusting the tightness of the steel wire 10;

[0031] a connecting block 40, a containing cavity 41 is formed in the center of the connecting block 40 along the length direction, and the containing cavity 41 is used for containing the fixed block 20 and the adjusting nut 30.

[0032] One end of the steel wire 10 is fixedly connected with the fixed block 20 in a reliable manner (such as tin soldering), so that the steel wire 10 cannot fall off or loosen during use. The adjusting nut 30 is abutted with the fixed block 20, when the user rotates the adjusting nut 30, the nut moves along its axis, thereby pushing the fixed block 20. In this process, the displacement of the adjusting nut 30 changes the position of the fixed block 20, thereby tightening or loosening the steel wire 10, achieving stepless adjustment of the tightness of the steel wire 10.

[0033] The containing cavity 41 of the connecting block 40 plays a role in supporting and containing the fixed block 20 and the adjusting nut 30. The adjusting mechanism 1 maintains a compact and clear functional structure layout as a whole. The internal space of the containing cavity 41 provides sufficient space, so that the adjusting nut 30 and the fixed block 20 can move smoothly during adjustment, thereby realizing accurate adjustment and avoiding the phenomenon that the steel wire 10 deviates or rubs too much during adjustment.

[0034] AsFigure 2 In some embodiments, the first through hole 21 is formed in the center of the fixing block 20 along the length direction, and one end of the steel wire 10 is inserted into the first through hole 21 and fixedly connected with one end of the fixing block 20.

[0035] By arranging the first through hole 21, the steel wire 10 can pass through the fixing block 20, ensuring that the fixing of the steel wire 10 is more stable and firm. When adjusting the tightness, the adjusting nut 30 pushes the fixing block 20 to move along the accommodating cavity 41 of the connecting block 40, and the steel wire 10 is fixed on the fixing block 20 through the first through hole 21, so that the length or tension of the steel wire can be directly adjusted by rotating the nut. Since the steel wire 10 is connected with the fixing block 20 by insertion, the problems of loosening and sliding in the traditional connection mode are avoided, and the uniformity of the force of the steel wire during adjustment is ensured. Not only the connection strength between the steel wire 10 and the fixing block 20 is enhanced, but also the compactness and reliability of the overall structure are optimized, so that the adjusting device is more stable and durable during use.

[0036] As shown in Figure 2 In some embodiments, the second through hole 31 is formed in the center of the adjusting nut 30 along the length direction, and the other end of the steel wire 10 is inserted into the second through hole 31 and extends outward.

[0037] The steel wire 10 can pass through the second through hole 31, ensuring that it remains on the correct axis during adjustment without deviation or bending. When the adjusting nut 30 is rotated, the nut moves along the thread, pushing the fixing block 20 by abutting against it, thereby adjusting the tightness of the steel wire 10. Since one end of the steel wire 10 extends outward from the second through hole 31, the user can monitor the state of the steel wire in real time during adjustment and further adjust its tightness as needed.

[0038] The arrangement of the second through hole 31 ensures smooth operation of the steel wire 10 during adjustment, avoiding uneven force or friction of the steel wire when the nut is rotated. In addition, the through hole also makes the device structure more compact, maintains the overall coaxiality of the device, and helps to improve the accuracy and stability of the adjustment. Through this design, the steel wire adjusting device is more efficient and durable during use.

[0039] In some embodiments, the inner wall of the accommodating cavity 41 is threaded, the connecting block 40 is tightly connected with the adjusting nut 30 through the thread, and the fixing block 20 abuts against the adjusting nut 30.

[0040] Through the action of the thread, the rotation of the adjusting nut 30 is converted into linear displacement, pushing the fixing block 20 to move along the axis direction of the connecting block 40, thereby adjusting the tightness of the steel wire 10.

[0041] As the adjusting nut 30 rotates, it engages with the threads of the connecting block 40, causing the fixed block 20 to move gradually, thereby tightening or loosening the steel wire 10. Since the adjusting nut 30 and the fixed block 20 always remain in abutment, the adjustment process can stably transmit force, ensuring fine adjustment of the steel wire tightness.

[0042] The threads on the inner wall of the accommodating cavity 41 also provide structural fastness of the device, preventing the adjusting nut 30 from loosening or shifting during the adjustment process, thereby improving the reliability and service life of the adjustment device. Through this structure, the user can accurately control the tightness of the steel wire, avoiding operational errors caused by loosening or improper adjustment, and is particularly suitable for application scenarios that require high-precision adjustment, such as endoscopic equipment, etc.

[0043] As shown in Figure 4 In some embodiments, the end of the fixed block 20 in abutment with the adjusting nut 30 is provided with a tapered convex surface 22, and the end of the adjusting nut 30 in abutment with the fixed block 20 is provided with a tapered concave surface 32, which are in abutment with each other.

[0044] The abutment of the tapered convex and concave surfaces can maintain the coaxiality of the device during the adjustment process, ensuring that the force on the steel wire 10 is always transmitted along the central axis, thereby avoiding friction or wear problems caused by force deviation.

[0045] When the adjusting nut 30 rotates and pushes the fixed block 20, the abutment of the tapered convex surface 22 and the tapered concave surface 32 ensures that they can be in close contact, and due to the self-centering property of the tapered structure, the fixed block 20 and the adjusting nut 30 always remain concentric. In this way, the tension of the steel wire 10 can be evenly distributed along its entire length, reducing local stress concentration and improving the service life of the steel wire.

[0046] In addition, the cooperation of the tapered convex and concave surfaces also provides better force transmission efficiency, making the adjustment process smoother, while reducing the friction between the steel wire and other internal components of the device. This design not only enhances the stability of the adjustment device, but also improves the accuracy of the operation, and is particularly suitable for devices that require high precision and durability, such as the steel wire adjustment system of an endoscope.

[0047] In some embodiments, the surface of the connecting block 40 is provided with a corrosion-resistant and slip-resistant layer.

[0048] By adding a corrosion-resistant and slip-resistant coating to the surface of the connecting block 40, not only the durability of the device is improved, but also the safety and stability of the operation are improved.

[0049] The corrosion-resistant layer protects the connecting block 40 from environmental factors such as moisture and chemicals, especially in high-performance environments like medical devices, extending the device's lifespan and reducing component damage or functional failure caused by corrosion. The non-slip layer provides better grip for users when adjusting the nuts or connecting blocks, preventing slipping and ensuring precise control during adjustment.

[0050] Therefore, by adding a corrosion-resistant and non-slip layer to the surface of the connecting block 40, the device not only has higher reliability in various environments, but also enhances user operation experience, making it stable and durable even when used frequently. This design is particularly suitable for precise adjustment devices in medical equipment, such as endoscope systems, ensuring their performance in complex use environments.

[0051] As shown in Figure 3 In some embodiments, the adjustment mechanism 1 also includes a chain 50, with both ends of the chain 50 being hingedly connected to the connecting block 40.

[0052] The chain 50 provides additional stability and flexibility, and its working principle is to achieve uniform distribution of force on the connecting block 40 through the hinged structure, and to provide support and positioning functions during adjustment.

[0053] The hinged design of the chain 50 and the connecting block 40 allows the entire adjustment mechanism to withstand multi-directional forces during adjustment without causing deviation or uneven stress. Especially during operation, the chain 50 can act as a balance to prevent the connecting block 40 from tilting or becoming unstable when the adjustment nut 30 rotates. Through the hinged structure, the chain 50 can move flexibly with the action of the adjustment mechanism, while ensuring smooth adjustment.

[0054] In addition, the chain 50 can also enhance the overall strength of the adjustment mechanism, especially under external force, providing additional fixed support to prevent the connecting block 40 from being damaged due to excessive movement. This design is suitable for devices that require high precision and reliability, ensuring stable operation of the device in various application scenarios.

[0055] The embodiment provides an endoscope device, which comprises an endoscope and the above-mentioned steel wire tightness adjustment mechanism 1, and the endoscope is fixedly connected with the steel wire tightness adjustment mechanism 1.

[0056] The endoscope is connected with the steel wire tightness adjustment mechanism 1 through the fixed structure, so as to realize precise control of the curved part of the endoscope.

[0057] During operation, the steel wire tightness adjusting mechanism 1 controls the tightness of the steel wire 10 through the adjusting nut 30, thereby adjusting the tension of the bending part of the endoscope. This design ensures that the operator can accurately adjust the angle and arc of the bending part during the use of the endoscope, meeting the needs of different surgeries or examinations. At the same time, the stepless adjusting function of the steel wire tightness adjusting mechanism 1 can avoid force transmission errors caused by steel wire slack, ensuring the stability and accuracy of the operation.

[0058] The fixed connection of the endoscope and the adjusting mechanism enhances the structural integrity of the overall device, ensuring the reliable performance of the endoscope in various operating environments, especially suitable for the high requirements of flexibility and durability of the bending part of the endoscope in medical operations.

[0059] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A wire tension adjustment mechanism, characterized in that, The adjustment mechanism includes: steel wire; A fixing block, one end of which is fixedly connected to the steel wire; An adjusting nut abuts against the other end of the fixing block, and the adjusting nut is used to adjust the tension of the steel wire; A connecting block has a receiving cavity at its center along its length, which is used to receive the fixing block and the adjusting nut.

2. The wire tension adjustment mechanism according to claim 1, characterized in that, The fixing block has a first through hole in the center extension direction, and one end of the steel wire passes through the first through hole and is fixedly connected to one end of the fixing block.

3. The wire tension adjustment mechanism according to claim 2, characterized in that, The adjusting nut has a second through hole in the center extension direction, and the other end of the steel wire passes through the second through hole and extends outward.

4. The wire tension adjustment mechanism according to claim 3, characterized in that, The inner wall of the accommodating cavity is threaded, and the connecting block is fastened to the adjusting nut through the thread, while the fixing block abuts against the adjusting nut.

5. The wire tension adjustment mechanism according to claim 4, characterized in that, The end of the fixing block that abuts against the adjusting nut has a conical convex surface, and the end of the adjusting nut that abuts against the fixing block has a conical concave surface. The conical convex surface and the conical concave surface fit together and abut against each other.

6. The wire tension adjustment mechanism according to claim 5, characterized in that, The surface of the connecting block is provided with an anti-corrosion and anti-slip layer.

7. A wire tension adjustment mechanism according to any one of claims 1-6, characterized in that, The adjustment mechanism also includes a chain, the two ends of which are hinged to the connecting block.

8. An endoscope device, characterized in that, It includes an endoscope and the wire tension adjustment mechanism as described in claim 7, wherein the endoscope is fixedly connected to the wire tension adjustment mechanism.

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