A hard endoscope tube body bending tool

Abstract

The utility model discloses a kind of rigid endoscope tube body bending tool, it relates to medical instrument processing technical field, specifically a kind of rigid endoscope tube body bending tool, including bottom plate, shaping block, control rod, pulley, limit block and fixed block, the shaping block is fixedly installed in the top of bottom plate by screw, one end of the control rod is hinged on the top of shaping block, the pulley is installed below control rod, the limit block is installed in one side of bottom plate, the wrench and slide bar of pushing its movement before and after are installed in the front of fixed block. By the cooperation of shaping block, control rod, pulley and limit block, the rigid endoscope tube body bending tool has the effect of low production cost, by the cooperation of shaping groove, pulley and annular groove, the rigid endoscope tube body bending tool has the effect of avoiding pipe body damage.

Description

Technical Field

[0001] This utility model relates to the field of medical device processing technology, specifically a rigid endoscope tube bending fixture. Background Technology

[0002] As a key medical device in minimally invasive surgery, the rigid endoscope can be processed into a specific bending angle according to the needs of the surgical scenario to adapt to the human body cavity structure and ensure the field of view. In the existing technology, the bending method of the workpiece is often to use bending equipment, place the workpiece on the fixture, and bend the workpiece by the upper die stamping. However, these bending equipment are expensive, and the stamping method requires an external power source, such as an electric motor, hydraulic power system or pneumatic power system, which also requires additional resource consumption. In addition, the staff also need to have certain professional operating skills to operate the relevant equipment, and the direct pressing of the stamping die may damage the tube. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a rigid endoscope tube bending fixture, which solves the problems mentioned in the background section.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a rigid endoscope tube bending fixture, comprising a base plate, a shaping block, a control rod, a pulley, a limiting block, and a fixing block. The shaping block is fixedly installed on the top of the base plate by screws. One end of the control rod is hinged to the top of the shaping block. The pulley is installed below the control rod. The limiting block is installed on one side of the base plate. A wrench and a sliding rod are installed in front of the fixing block to push it back and forth.

[0005] Preferably, a shaping groove is provided at the middle position between the front and one side of the shaping block, and an annular groove with the same height dimension as the shaping groove is provided on the outer side of the pulley, and a fixing block is installed in front of the front shaping groove.

[0006] Preferably, a groove with the same orientation as the molding groove is provided on the upper part of the base plate, the lower end of the pulley is inserted into the groove, and the control rod is connected by a bolt whose lower end is inserted into the middle hole of the pulley through a threaded connection.

[0007] Preferably, a limiting screw is threadedly connected to the top of the limiting block, and the limiting screw is concentric with the endoscope tube body fixed to the front of the molding block by a fixing block.

[0008] Preferably, the lower surface of the fixing block contacts the upper surface of the base plate, the height of the upper surface of the fixing block is the same as the height of the upper surface of the shaping block, and the outer surface of the fixing block near the shaping block is flat.

[0009] Preferably, the front end of the wrench protrudes from the front of the base plate, the wrench is connected to the slide rod via a connecting rod, the slide rod is installed above the base plate via a sliding sleeve and is perpendicular to the front of the plastic block, and the rear end of the slide rod is connected to the fixing block.

[0010] This utility model provides a rigid endoscope tube bending fixture, which has the following beneficial effects: 1. This rigid endoscope tube bending fixture, through the coordinated arrangement of a shaping block, control rod, pulley, and limiting block, achieves low production costs. The worker manually bends the control rod, which, as it rotates, causes the pulley to press the tube into the shaping groove, bending it into shape. Simultaneously, the limiting block limits the length. This simple and compact structure allows for precise control of the bending angle and length. Compared to bending using a stamping machine, it achieves the desired production quality while significantly reducing production costs.

[0011] 2. This rigid endoscope tube bending fixture, through the combination of the shaping groove, pulley and annular groove, enables the rigid endoscope tube bending fixture to avoid tube damage. Since the mating surface of the annular groove and the shaping groove completely covers the stress area of ​​the tube, it not only allows the stress area to be large during tube bending, but also the stress to be even, thereby avoiding tube breakage due to uneven stress. At the same time, the pulley can rotate, thus avoiding scratching the surface of the tube. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of the three-dimensional view of this utility model; Figure 2 This is a structural schematic diagram of the main view of this utility model; Figure 3 This is a structural schematic diagram of the left view of this utility model; Figure 4 This is a top view of the structure of this utility model.

[0013] In the diagram: 1. Base plate; 101. Slide groove; 2. Shaping block; 201. Shaping groove; 3. Control rod; 4. Pulley; 401. Annular groove; 5. Limiting block; 6. Fixing block; 7. Wrench; 8. Slide rod; 9. Limiting screw. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example Please see Figures 1 to 4The present invention provides a technical solution: a rigid endoscope tube bending fixture, comprising a base plate 1, a shaping block 2, a control rod 3, a pulley 4, a limiting block 5, and a fixing block 6. The shaping block 2 is fixedly installed on the top of the base plate 1 by screws. One end of the control rod 3 is hinged to the top of the shaping block 2. The pulley 4 is installed below the control rod 3. The limiting block 5 is installed on one side of the base plate 1. A wrench 7 and a sliding rod 8 are installed in front of the fixing block 6 to push it back and forth.

[0016] A shaping groove 201 is provided in the middle of the front and one side of the shaping block 2. An annular groove 401 with the same height dimension as the shaping groove 201 is provided on the outer side of the pulley 4. The fixing block 6 is installed in front of the front shaping groove 201.

[0017] Specifically, the shape and size of the combined shaping groove 201 and annular groove 401 are the same as the shape and size of the endoscope tube, and the endoscope tube is inserted between the shaping groove 201 and annular groove 401.

[0018] A groove 101 with the same orientation as the shaping groove 201 is provided on the top of the base plate 1. The lower end of the pulley 4 is inserted into the groove 101. The control rod 3 is connected by a bolt whose lower end is inserted into the middle hole of the pulley 4 through a thread.

[0019] Specifically, the bolt inserted into the middle hole of the pulley 4 is a partially threaded bolt. Its upper end is threaded and connected to the control rod 3, and its lower end is an optical shaft that is clearance-fitted with the pulley 4. When the control rod 3 is rotated, the control rod 3 moves the pulley 4 to rotate in the slide groove 101 through the bolt.

[0020] A limiting screw 9 is threadedly connected to the upper part of the limiting block 5. The limiting screw 9 is concentric with the endoscope tube body, which is fixed to the front of the molding block 2 by the fixing block 6.

[0021] Specifically, after the endoscope tube is inserted into the shaping groove 201 in front of the shaping block 2 from one side, the end is stopped by the limiting screw 9. The length of the endoscope tube inserted into the shaping groove 201 can be adjusted by adjusting the depth of the connection between the limiting screw 9 and the limiting block 5.

[0022] The lower surface of the fixing block 6 is in contact with the upper surface of the base plate 1. The height of the upper surface of the fixing block 6 is the same as the height of the upper surface of the shaping block 2. The outer surface of the fixing block 6 near the shaping block 2 is flat.

[0023] Specifically, the contact between the fixing block 6 and the base plate 1 allows the fixing block 6 to move horizontally back and forth, thus preventing it from rotating.

[0024] The front end of the wrench 7 protrudes from the front of the base plate 1. The wrench 7 is connected to the slide rod 8 via a connecting rod. The slide rod 8 is installed above the base plate 1 via a sliding sleeve and is perpendicular to the front of the plastic block 2. The rear end of the slide rod 8 is connected to the fixing block 6.

[0025] Specifically, when the wrench 7 is moved up and down by hand, the slide bar 8 can be driven to move back and forth. When the fixing block 6 moves forward, it can press the endoscope tube into the molding groove 201 in front of the molding block 2, thus fixing the endoscope tube firmly.

[0026] In use, first, the bending fixture is fixedly installed on the table via the base plate 1. Then, the control lever 3 is swung to the front of the shaping block 2, i.e., the shaping block 2 is perpendicular to the front of the base plate 1. At this point, the channel formed by the annular groove 401 and the shaping groove 201 is concentric with the limiting screw 9. Next, the end of the tube is inserted from the right side into the channel formed by the annular groove 401 and the shaping groove 201, ensuring that the end of the tube touches the end face of the limiting screw 9. The length of the tube to be bent is the distance from the contact surface between the pulley 4 and the tube to the end of the tube. During this process, the depth of the connection between the limiting screw 9 and the limiting block 5 can be adjusted to change the bending length of the tube. After adjusting the bending length, tighten the limiting screw 9. In subsequent work, the position of the limiting screw 9 can be used to determine the bending length of the tube. Then, turn the wrench 7 to drive the slide bar 8 to push the fixing block 6 backward. At the same time, the fixing block 6 squeezes the tube into the shaping groove 201, thereby fixing the tube in the shaping groove 201. Then, turn the control lever 3 by hand to make the pulley 4 roll backward in the slide groove 101. At the same time, the annular groove 401 also rolls outside the shaping groove 201, thereby bending the tube between the annular groove 401 and the shaping groove 201 along the direction of the shaping groove 201, thus achieving non-destructive bending of the tube.

[0027] In summary, this rigid endoscope tube bending fixture allows workers to manually bend the control lever 3. As the control lever 3 rotates, the tube is rolled and bent into shape within the shaping groove 201 by the pulley 4. At the same time, the length is limited by the limiting block 5. The above structure is simple and small in size, but it can accurately control the bending angle and bending length. Compared with bending by a stamping machine, it can achieve the same production quality while greatly reducing production costs. Since the mating surface of the annular groove 401 and the shaping groove 201 completely covers the stress area of ​​the tube, the stress area during bending is large and the stress is even, thus avoiding tube breakage due to uneven stress. At the same time, the pulley 4 can rotate, thus avoiding scratching the surface of the tube.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rigid endoscope tube bending fixture, comprising a base plate (1), a shaping block (2), a control rod (3), a pulley (4), a limiting block (5), and a fixing block (6), characterized in that: The shaping block (2) is fixedly installed on the top of the base plate (1) by screws. One end of the control rod (3) is hinged to the top of the shaping block (2). The pulley (4) is installed below the control rod (3). The limiting block (5) is installed on one side of the base plate (1). A wrench (7) and a sliding rod (8) are installed in front of the fixing block (6) to push it back and forth.

2. The rigid endoscope tube bending fixture according to claim 1, characterized in that: A molding groove (201) is provided in the middle of the front and one side of the molding block (2). An annular groove (401) with the same height dimension as the molding groove (201) is provided on the outer side of the pulley (4). A fixing block (6) is installed in front of the front molding groove (201).

3. The rigid endoscope tube bending fixture according to claim 2, characterized in that: A groove (101) with the same direction as the shaping groove (201) is provided on the top of the base plate (1). The lower end of the pulley (4) is inserted into the groove (101). The control rod (3) is connected by a bolt whose lower end is inserted into the middle hole of the pulley (4) through a thread.

4. The rigid endoscope tube bending fixture according to claim 2, characterized in that: A limiting screw (9) is connected to the upper part of the limiting block (5) by a thread. The limiting screw (9) is concentric with the endoscope tube body fixed in front of the molding block (2) by the fixing block (6).

5. The rigid endoscope tube bending fixture according to claim 2, characterized in that: The lower surface of the fixing block (6) is in contact with the upper surface of the base plate (1). The height of the upper surface of the fixing block (6) is the same as the height of the upper surface of the shaping block (2). The outer surface of the fixing block (6) near the shaping block (2) is flat.

6. The rigid endoscope tube bending fixture according to claim 2, characterized in that: The front end of the wrench (7) protrudes from the front of the base plate (1). The wrench (7) is connected to the slide rod (8) through a connecting rod. The slide rod (8) is installed above the base plate (1) through a sliding sleeve and is perpendicular to the front of the plastic block (2). The rear end of the slide rod (8) is connected to the fixing block (6).

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