Endoscope knob brake device, endoscope handle and endoscope

Abstract

The present invention relates to an endoscope knob brake device, an endoscope handle and an endoscope, wherein brake parts are slidably arranged in a slide groove one by one, and it is ensured that the brake parts extend out of a fixed frame through the slide groove. When the brake button sleeved on the outside of the fixed frame rotates to a preset angle, the pushing part on its inner wall will contact the brake part and push the brake part to move in the slide groove. Since the slide groove is connected to the working chamber, each brake part is pushed into the working chamber by the pushing part, and finally clamped on the knob device to achieve braking of the knob device. In this way, through the matching structure between the brake part and the brake button, the brake part is directly driven to move in the slide groove during the braking process, so that the braking of the knob device can be achieved. The structural design is ingenious and concise, and the braking force transmission is direct and effective, which ensures that the braking effect of the knob is better. At the same time, during assembly, the brake part only needs to be slid in the slide groove, which effectively simplifies the assembly process and is conducive to improving assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an endoscope knob brake device, an endoscope handle and an endoscope. Background Art

[0002] An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. It has image sensors, optical lenses, lighting sources, mechanical devices, etc. As an important auxiliary medical instrument for detecting lesions in human internal organs, it is widely used in various surgical operations. At present, most endoscope products are reusable products. After each use, they need to be disinfected through strict disinfection procedures. Traditional endoscopes include a handle, an insertion tube, a snake bone, a tip, and a host. The handle is integrated with function buttons, air and water valves, negative pressure valves, three-way valves, and other structures.

[0003] In order to expand the observation range, the knob device is used to control the bending of the snake bone in four directions to realize four-way observation of the endoscope. When it is necessary to obtain image information in a specific orientation, the knob device is locked through the brake assembly to keep the snake bone at a specific bending angle. The traditional brake assembly usually includes a lever part and a damping plate, the lever part is provided with a connecting column, and the damping plate is provided with an arc groove. When the lever part rotates, it drives the connecting column to slide in the arc groove from the end farthest from the axis of the guide rail member in the initial state of the arc groove to the end closest to the axis of the guide rail member in the initial state of the arc groove, driving the damping plates to move closer to each other, and clamping the knob device to achieve braking. However, this braking method has a complex structural design, high cost, and inconvenient assembly; at the same time, during the braking process, the braking force is indirectly transmitted by the connecting column and the arc groove, resulting in poor braking effect. Summary of the invention

[0004] Based on this, it is necessary to provide an endoscope knob braking device, an endoscope handle and an endoscope with simple structural design, convenient assembly and better braking effect.

[0005] An endoscope knob brake device, the endoscope knob brake device comprises: a fixed frame, a working cavity is provided on the fixed frame, the working cavity is used for the knob device to penetrate, at least two slide grooves are provided on the fixed frame around the working cavity, one end of each slide groove is connected with the working cavity, and the other end is used to connect to the outside of the fixed frame; a brake member, there are at least two brake members, each of which is slidably installed in each of the slide grooves one by one, and the brake member passes through the slide groove and extends out of the fixed frame; a brake button, the brake button is sleeved on the outside of the fixed frame, and at least two pushing parts are provided on the inner wall of the brake button at intervals, when the brake button is rotated to a preset angle, each of the pushing parts pushes each of the brake members to move toward the direction of the working cavity one by one to hold the knob device tightly.

[0006] The above-mentioned endoscope knob brake device slides the brake parts in the slide groove one by one, and ensures that the brake parts extend out of the fixed frame through the slide groove. When the brake button mounted on the outside of the fixed frame rotates to a preset angle, the push part on its inner wall will contact the brake part and push the brake part to move in the slide groove. Since the slide groove is connected to the working chamber, each brake part extends into the working chamber respectively under the push of the push part, and finally clamps on the knob device to achieve braking of the knob device. In this way, through the matching structure between the brake part and the brake button, the brake part is directly driven to move in the slide groove during the braking process, so that the braking of the knob device can be achieved. The structural design is ingenious and simple, and the braking force transmission is direct and effective, which ensures a better braking effect of the knob. At the same time, during assembly, it is only necessary to slide the brake part in the slide groove, which effectively simplifies the assembly process and helps to improve assembly efficiency.

[0007] In one embodiment, the slide groove includes a first groove section, a second groove section and a third groove section which are connected in sequence, the first groove section is connected to the working chamber, the third groove section is used to connect to the outside of the fixed frame, the brake member is slidably installed in the second groove section, and one end of the brake member extends into the first groove section, and the other end passes through the third groove section and extends out of the fixed frame.

[0008] In one embodiment, the braking member includes a main body and a clamping portion and a transmission portion respectively arranged at opposite ends of the main body, the clamping portion is located in the first slot segment, the transmission portion is located in the third slot segment and partially extends out of the fixed frame, and there are limiting walls between the first slot segment and the second slot segment, and between the second slot segment and the third slot segment. The main body is slidably installed in the second slot segment, and is respectively limited by the limiting walls between the first slot segment and the second slot segment, and between the second slot segment and the third slot segment.

[0009] In one embodiment, the width W1 of the first slot segment and the width W3 of the third slot segment are both smaller than the width W2 of the second slot segment, so that the limiting wall is formed between the first slot segment and the third slot segment and the second slot segment respectively; the width W4 of the clamping portion and the width W6 of the transmission portion are both smaller than the width W5 of the main body portion.

[0010] In one embodiment, the brake button includes a button body and a ring sleeve arranged on the button body, the ring sleeve is arranged outside the fixing frame, and the pushing part is arranged on the inner wall of the ring sleeve.

[0011] In one embodiment, the pushing portion is formed by an inner wall of the ring sleeve protruding toward the center of the ring sleeve.

[0012] In one of the embodiments, the brake button is provided with a toggle portion, and the toggle portion extends along a radial protrusion of the brake button; or, the brake button is provided with a toggle portion, and the toggle portion protrudes and extends in a direction away from the fixing frame.

[0013] In one embodiment, the fixing frame is provided with a first positioning portion, and the first positioning portion is used to be positioned and matched with a second positioning portion on the knob device to limit the fixing frame from rotating with the knob device.

[0014] In one embodiment, the first positioning portion is a positioning groove or a positioning protrusion on the fixing frame.

[0015] In one embodiment, there are multiple first positioning portions, and the multiple first positioning portions are arranged at intervals around the working chamber.

[0016] In one embodiment, an arc-shaped groove is provided on the brake button, and the arc-shaped groove is arranged around the working cavity. The arc-shaped groove is used to cooperate with a limit column on the shell to limit the rotation range of the brake button; or, a first limit block is provided on the inner wall of the brake button, and a second limit block is provided on the outer wall of the fixed frame, and the first limit block cooperates with the second limit block to limit the rotation range of the brake button.

[0017] An endoscope handle, comprising a knob device and two or more endoscope knob brake devices described in any one of the above, wherein the knob device comprises a shell, a first wire pull wheel, a second wire pull wheel, a first knob and a second knob, wherein the first wire pull wheel extends out of the shell and is connected to the first knob, the second wire pull wheel passes through the first wire pull wheel, extends out of the shell and is connected to the second knob, one endoscope knob brake device is used to brake the first knob or the first wire pull wheel, and the other endoscope knob brake device is used to brake the second knob or the second wire pull wheel.

[0018] The above-mentioned endoscope handle adopts the above-mentioned endoscope knob brake device, and the brake parts are slidably arranged in the slide groove one by one, and it is ensured that the brake parts extend out of the fixed frame through the slide groove. When the brake button sleeved on the outside of the fixed frame is rotated to a preset angle, the pushing part on its inner wall will contact the brake part and push the brake part to move in the slide groove. Since the slide groove is connected to the working chamber, each brake part is pushed into the working chamber by the pushing part, and finally clamped on the knob device to achieve braking of the knob device. In this way, through the matching structure between the brake part and the brake button, the brake part is directly driven to move in the slide groove during the braking process, so that the braking of the knob device can be achieved. Its structural design is ingenious and simple, and the braking force transmission is direct and effective, which ensures that the braking effect of the knob is better. At the same time, during assembly, it is only necessary to slide the brake part in the slide groove, which effectively simplifies the assembly process and is conducive to improving assembly efficiency.

[0019] An endoscope, characterized by comprising the endoscope handle described above.

[0020] The above-mentioned endoscope adopts the above-mentioned endoscope handle, and the brake parts are slidably arranged in the slide groove one by one, and it is ensured that the brake parts extend out of the fixed frame through the slide groove. When the brake button sleeved on the outside of the fixed frame is rotated to a preset angle, the pushing part on its inner wall will contact the brake part and push the brake part to move in the slide groove. Since the slide groove is connected to the working chamber, each brake part is pushed into the working chamber by the pushing part, and finally clamped on the knob device to achieve braking of the knob device. In this way, through the matching structure between the brake part and the brake button, the brake part is directly driven to move in the slide groove during the braking process, so that the braking of the knob device can be achieved. The structural design is ingenious and simple, and the braking force transmission is direct and effective, which ensures that the braking effect of the knob is better. At the same time, during assembly, it is only necessary to slide the brake part in the slide groove, which effectively simplifies the assembly process and is conducive to improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 An exploded perspective view of the structure of an endoscope knob brake device according to an embodiment;

[0024] Figure 2 It is another perspective view of an exploded view of the endoscope knob brake device structure described in one embodiment;

[0025] Figure 3 is a schematic diagram of the structure of a fixing frame described in an embodiment;

[0026] Figure 4 is a schematic diagram of the structure of a brake member described in an embodiment;

[0027] Figure 5 An exploded perspective view of the endoscope knob brake structure according to another embodiment;

[0028] Figure 6 It is another exploded perspective view of the endoscope knob brake device structure described in another embodiment;

[0029] Figure 7 is a schematic diagram of the structure of a fixing frame described in another embodiment;

[0030] Figure 8 is a schematic diagram of the structure of a brake member in another embodiment;

[0031] Fig. 9 It is a schematic diagram of an exploded structure of an endoscope knob brake device described in one embodiment.

[0032] 100, endoscope knob brake device; 110, fixing frame; 111, working chamber; 112, slide groove; 1121, first groove section; 1122, second groove section; 1123, third groove section; 1124, limiting wall; 113, first positioning part; 1131, positioning groove; 1132, positioning protrusion; 114, second limiting block; 120, brake member; 121, main body; 122, holding part; 123, transmission part; 130, brake button; 131. button body; 132. ring sleeve; 133. pushing part; 134. toggle part; 135. arc groove; 136. first limit block; 200. shell; 210. limit column; 220. second positioning part; 300. knob device; 310. first wire drawing wheel; 320. second wire drawing wheel; 410. first knob; 420. second knob; 500. wire drawing wheel bracket; 510. first wire drawing wheel bracket; 520. second wire drawing wheel bracket. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] In one embodiment, please refer to Figure 1 and Figure 6 An endoscope knob brake device 100, the endoscope knob brake device 100 comprises: a fixed frame 110, a brake member 120 and a brake button 130. A working cavity 111 is provided on the fixed frame 110. The working cavity 111 is used for the knob device 300 to penetrate. At least two slide grooves 112 are provided on the fixed frame 110 around the working cavity 111. One end of each slide groove 112 is connected to the working cavity 111, and the other end is used to connect to the outside of the fixed frame 110. There are at least two brake members 120, and each brake member 120 is slidably installed in each slide groove 112 in a one-to-one correspondence, and the brake member 120 passes through the slide groove 112 and extends out of the fixed frame 110. The brake button 130 is sleeved outside the fixing frame 110 , and at least two pushing portions 133 are spaced apart on the inner wall of the brake button 130 . When the brake button 130 is rotated to a preset angle, each pushing portion 133 pushes each brake member 120 toward the working chamber 111 in a one-to-one correspondence to hold the knob device 300 tightly.

[0035] The above-mentioned endoscope knob brake device 100 slides the brake members 120 in the slide grooves 112 one by one, and ensures that the brake members 120 pass through the slide grooves 112 and extend out of the fixing frame 110. When the brake button 130 sleeved on the outside of the fixing frame 110 rotates to a preset angle, the push portion 133 on its inner wall will contact the brake member 120 and push the brake member 120 to move in the slide groove 112. Since the slide groove 112 is connected to the working chamber 111, each brake member 120 is pushed into the working chamber 111 by the push portion 133, and finally holds the knob device 300 tightly to achieve the braking of the knob device 300. Thus, through the matching structure between the brake member 120 and the brake button 130, the brake member 120 is directly driven to move in the slide groove 112 during the braking process, so that the knob device 300 can be braked. Its structural design is ingenious and concise, and the braking force is directly and effectively transmitted, ensuring a better braking effect of the knob. At the same time, during assembly, it is only necessary to slide the brake member 120 into the slide groove 112, which effectively simplifies the assembly process and is conducive to improving assembly efficiency.

[0036] It should be noted that the "preset angle" should be understood as: when the knob device 300 needs to be braked, after the brake button 130 rotates clockwise or counterclockwise around the rotation axis by a certain angle, the push portion 133 on the brake button 130 pushes the brake member 120 to move in the slide groove 112 toward the working chamber 111. The angle can be any angle value between 0° (excluding 0°) and 360° (excluding 360°).

[0037] It should also be noted that when the knob device 300 penetrates the working chamber 111, the knob device 300 may pass through the brake button 130 or may not pass through the brake button 130, that is, the brake button 130 covers the knob device 300. In addition, when at least two brake members 120 hold the knob device 300, one end of the brake member 120 should be designed to match the outer contour of the knob device 300 so that it can limit the knob device 300 from continuing to rotate. Of course, in order to improve the holding effect, an anti-slip structure can be set at one end of the brake member 120, such as adding anti-slip teeth, anti-slip patterns, anti-slip damping layers, etc.

[0038] For further information, please refer to Figure 3 , the slide groove 112 includes a first groove section 1121, a second groove section 1122 and a third groove section 1123 which are connected in sequence. The first groove section 1121 is connected to the working chamber 111. The third groove section 1123 is used to connect to the outside of the fixing frame 110. The brake member 120 is slidably installed in the second groove section 1122, and one end of the brake member 120 extends into the first groove section 1121, and the other end passes through the third groove section 1123 and extends out of the fixing frame 110. In this embodiment, the slide groove 112 is designed as a three-section structure. Before braking, one end of the brake member 120 passes through the third groove section 1123 and extends out of the fixing frame 110; during braking, under the action of the pushing portion 133, the other end of the brake member 120 passes through the first groove section 1121 and extends into the working chamber 111 to hold the knob device 300 tightly.

[0039] For further information, please refer to Figure 3The brake member 120 includes a main body 121 and a clamping portion 122 and a transmission portion 123 respectively disposed at opposite ends of the main body 121. The clamping portion 122 is located in the first slot section 1121. The transmission portion 123 is located in the third slot section 1123 and partially extends out of the fixing frame 110. There are limiting walls 1124 between the first slot section 1121 and the second slot section 1122, and between the second slot section 1122 and the third slot section 1123. The main body 121 is slidably mounted in the second slot section 1122. And the limiting walls 1124 between the first slot section 1121 and the second slot section 1122, and between the second slot section 1122 and the third slot section 1123 are respectively limited and matched. In the limiting cooperation, when the main body 121 cooperates with the limiting wall 1124 adjacent to the third slot section 1123, the transmission part 123 partially passes through the third slot section 1123 and extends out of the fixing frame 110; when the main body 121 cooperates with the limiting wall 1124 adjacent to the first slot section 1121, the holding part 122 passes through the first slot section 1121 and extends into the working cavity 111. In this way, the limiting wall 1124 between the first slot section 1121 and the second slot section 1122, and between the second slot section 1122 and the third slot section 1123 is used to limit the movement of the main body 121 in the second slot section 1122, and under the premise of achieving effective braking, the braking member 120 is prevented from sliding out of the slide slot 112, which causes the endoscope knob braking device 100 to fail.

[0040] Optionally, the connection methods of the holding part 122 and the transmission part 123 on the main body 121 can be but not limited to bolt connection, threaded sleeve connection, clamping connection, welding, riveting, pin connection, integrated molding, etc. Among them, the integrated molding method should be understood as: injection molding, extrusion molding, die casting, etc.

[0041] Specifically, please refer to Figure 4 and Figure 8 The transmission part 123 , the main body part 121 and the holding part 122 are an integrated structure, which is not only conducive to simplifying the manufacturing process, but also conducive to ensuring the structural stability of the brake member 120 .

[0042] Of course, when the brake member 120 is an integrated structure, there are many options for its appearance design, such as: mountain shape, etc. This embodiment does not make any specific limitation on this.

[0043] In one embodiment, please refer to Figure 3, the width W1 of the first slot section 1121 and the width W3 of the third slot section 1123 are both smaller than the width W2 of the second slot section 1122, so that the limiting wall 1124 is formed between the first slot section 1121 and the third slot section 1123 and the second slot section 1122 respectively. The width W4 of the clamping part 122 and the width W6 of the transmission part 123 are both smaller than the width W5 of the main body 121. It can be seen that during the braking process, the width difference between the second slot section 1122 and the first slot section 1121 and the third slot section 1123 is used to form the limiting walls 1124 on both sides, so as to stably limit the main body 121 to move back and forth in the second slot section 1122, thereby ensuring that the braking structure is more stable.

[0044] It should be noted that the first slot section 1121 is disposed in the middle of the second slot section 1122, and two limiting walls 1124 can be formed by utilizing the width difference between the first slot section 1121 and the second slot section 1122. Of course, if the first slot section 1121 is not disposed in the middle of the second slot section 1122, one limiting wall 1124 can also be formed. Similarly, the third slot section 1123 is disposed in the middle of the second slot section 1122, and two limiting walls 1124 can be formed by utilizing the width difference between the third slot section 1123 and the second slot section 1122. Of course, if the third slot section 1123 is not disposed in the middle of the second slot section 1122, one limiting wall 1124 can also be formed.

[0045] In one embodiment, please refer to Figure 1 and Figure 5 The brake button 130 includes a button body 131 and a ring sleeve 132 disposed on the button body 131. The ring sleeve 132 is sleeved outside the fixing frame 110, and the pushing portion 133 is disposed on the inner wall of the ring sleeve 132. Thus, when the ring sleeve 132 is driven to rotate outside the fixing frame 110, the pushing portion 133 on the inner wall thereof will contact the protruding portion of the brake member 120 and push the brake member 120 to move.

[0046] Optionally, the connection method of the pushing portion 133 on the ring sleeve 132 may be but is not limited to bolt connection, threaded sleeve connection, clamping connection, welding, riveting, pin connection, one-piece molding, etc.

[0047] It should be noted that a through hole for the knob device 300 to pass through may be provided on the button body 131 for easy assembly.

[0048] For further information, please refer to Figure 1 and Figure 5 The pushing portion 133 is formed by the inner wall of the ring sleeve 132 protruding toward the center of the ring sleeve 132, that is, the pushing portion 133 and the ring sleeve 132 are an integrated structure, which makes its manufacture more convenient.

[0049] Specifically, please refer to Figure 1 and Figure 5The number of the pusher 133, the brake member 120 and the slide groove 112 are three. The three slide grooves 112 are arranged at intervals around the circumference of the working chamber 111. The three pushers 133 are arranged at intervals along the circumference of the ring sleeve 132.

[0050] In one embodiment, please refer to Figure 2 and Figure 6 , the brake button 130 is provided with a toggle portion 134. The toggle portion 134 protrudes and extends along the radial direction of the brake button 130; or, the toggle portion 134 protrudes and extends in a direction away from the fixing frame 110. It can be seen that this embodiment provides two different structures of the toggle portion 134. By designing different toggle portions 134, it is convenient for operators to drive the brake button 130 to rotate, thereby improving the operability of the product.

[0051] In one embodiment, please refer to Figure 2 and Figure 7 The fixing frame 110 is provided with a first positioning portion 113. The first positioning portion 113 is used to position and cooperate with the second positioning portion 220 on the knob device 300 to limit the fixing frame 110 from rotating with the knob device 300. In this way, the fixing frame 110 is in a relatively fixed state through the cooperation between the first positioning portion 113 and the second positioning portion 220, so that the brake member 120 holds the knob device 300 tightly.

[0052] Optionally, the first positioning portion 113 is a convex structure, and the second positioning portion 220 is a hole or groove structure; or, the first positioning portion 113 is a hole or groove structure, and the second positioning portion 220 is a convex structure.

[0053] For further information, please refer to Figure 2 and Figure 7 The first positioning portion 113 is a positioning groove 1131 or a positioning protrusion 1132 on the fixing frame 110 .

[0054] Specifically, please refer to Fig. 9 The first positioning portion 113 on one fixing frame 110 is a positioning groove 1131, which is positioned and matched with the second positioning portion 220 on the housing 200. The second positioning portion 220 on the other fixing frame 110 is a positioning protrusion 1132, which is positioned and matched with the second positioning portion 220 on the wire pulley bracket 500.

[0055] For further information, please refer to Figure 2 and Figure 7 There are multiple first positioning parts 113. The multiple first positioning parts 113 are arranged at intervals around the working chamber 111. In this way, the rotation restriction effect of the fixing frame 110 is better through the cooperation between the multiple first positioning parts 113 and the multiple second positioning parts 220.

[0056] In one embodiment, please refer to Figure 2 and Figure 5 , the brake button 130 is provided with an arc groove 135. The arc groove 135 is arranged around the working chamber 111, and the arc groove 135 is used to cooperate with the limiting column 210 on the housing 200 to limit the rotation range of the brake button 130; or, a first limiting block 136 is provided on the inner wall of the brake button 130, and a second limiting block 114 is provided on the outer wall of the fixing frame 110, and the first limiting block 136 cooperates with the second limiting block 114 to limit the rotation range of the brake button 130. In this way, the rotation range of the brake button 130 is effectively limited by the arc groove 135 or the first limiting block 136, and the structural instability caused by excessive rotation is avoided.

[0057] In one embodiment, please refer to Fig. 9 , an endoscope handle, the endoscope handle includes a knob device 300 and an endoscope knob brake device 100 in any one of the two or more embodiments. The knob device 300 includes a housing 200, a first wire pull wheel 310, a second wire pull wheel 320, a first knob 410 and a second knob 420. The first wire pull wheel 310 extends out of the housing 200 and is connected to the first knob 410. The second wire pull wheel 320 penetrates the first wire pull wheel 310 and extends out of the housing 200, and is connected to the second knob 420. One endoscope knob brake device 100 is used to brake the first knob 410, and the other endoscope knob brake device 100 is used to brake the second knob 420.

[0058] The above-mentioned endoscope handle adopts the above-mentioned endoscope knob brake device 100, and slides the brake members 120 into the slide groove 112 one by one, and ensures that the brake members 120 pass through the slide groove 112 and extend out of the fixed frame 110. When the brake button 130 sleeved on the outside of the fixed frame 110 rotates to a preset angle, the push portion 133 on its inner wall will contact the brake member 120 and push the brake member 120 to move in the slide groove 112. Since the slide groove 112 is connected to the working chamber 111, each brake member 120 is pushed into the working chamber 111 by the push portion 133, and finally holds the knob device 300 tightly to achieve the braking of the knob device 300. Thus, through the matching structure between the brake member 120 and the brake button 130, the brake member 120 is directly driven to move in the slide groove 112 during the braking process, so that the knob device 300 can be braked. Its structural design is ingenious and concise, and the braking force is directly and effectively transmitted, ensuring a better braking effect of the knob. At the same time, during assembly, it is only necessary to slide the brake member 120 into the slide groove 112, which effectively simplifies the assembly process and is conducive to improving assembly efficiency.

[0059] Furthermore, the knob device 300 further includes a first wire pull wheel bracket 510 and a second wire pull wheel bracket 520. The first wire pull wheel bracket 510 is sleeved on the second wire pull wheel 320 and covers the first wire pull wheel 310. The second wire pull wheel bracket 520 covers the second wire pull wheel 320 and penetrates the second wire pull wheel 320 to extend out of the housing 200.

[0060] In one embodiment, please refer to Fig. 9 , an endoscope, characterized in that it includes the endoscope handle in the above embodiments.

[0061] The endoscope described above adopts the endoscope handle described above, and the brake members 120 are slidably arranged in the slide grooves 112 one by one, and the brake members 120 are ensured to pass through the slide grooves 112 and extend out of the fixing frame 110. When the brake button 130 sleeved on the outside of the fixing frame 110 is rotated to a preset angle, the pushing portion 133 on its inner wall will contact the brake member 120 and push the brake member 120 to move in the slide groove 112. Since the slide groove 112 is connected to the working chamber 111, each brake member 120 is pushed into the working chamber 111 by the pushing portion 133, and finally holds the knob device 300 tightly to achieve the braking of the knob device 300. Thus, through the matching structure between the brake member 120 and the brake button 130, the brake member 120 is directly driven to move in the slide groove 112 during the braking process, so that the knob device 300 can be braked. Its structural design is ingenious and concise, and the braking force is directly and effectively transmitted, ensuring a better braking effect of the knob. At the same time, during assembly, it is only necessary to slide the brake member 120 into the slide groove 112, which effectively simplifies the assembly process and is conducive to improving assembly efficiency.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. An endoscope knob brake device, characterized in that: The endoscope knob brake device comprises: A fixing frame, wherein a working cavity is provided on the fixing frame, wherein the working cavity is used for the knob device to pass through, and at least two slide grooves are provided on the fixing frame around the working cavity at intervals, wherein one end of each slide groove is connected to the working cavity, and the other end is used for connecting to the outside of the fixing frame; Braking members, there are at least two braking members, each of which is slidably mounted in each of the sliding grooves in a one-to-one correspondence, and each of the braking members passes through the sliding grooves and extends out of the fixing frame; A brake button, the brake button is sleeved outside the fixing frame, and at least two pushing parts are arranged on the inner wall of the brake button at intervals. When the brake button is rotated to a preset angle, each of the pushing parts pushes each of the brake members to move toward the working chamber in a one-to-one correspondence to hold the knob device tightly; The slide groove comprises a first groove section, a second groove section and a third groove section which are connected in sequence, the first groove section is connected to the working chamber, the third groove section is used to connect to the outside of the fixing frame, the brake member is slidably mounted in the second groove section, and one end of the brake member extends into the first groove section, and the other end passes through the third groove section and extends out of the fixing frame; The brake member comprises a main body, and a clamping part and a transmission part respectively arranged at opposite ends of the main body, the clamping part is located in the first slot section, the transmission part is located in the third slot section and partially extends out of the fixing frame, and there are limiting walls between the first slot section and the second slot section, and between the second slot section and the third slot section, the main body is slidably installed in the second slot section, and is respectively limitedly matched with the limiting walls between the first slot section and the second slot section, and between the second slot section and the third slot section; The width W1 of the first slot segment and the width W3 of the third slot segment are both smaller than the width W2 of the second slot segment, so that the limiting wall is formed between the first slot segment and the third slot segment and the second slot segment respectively; the width W4 of the clamping portion and the width W6 of the transmission portion are both smaller than the width W5 of the main body portion; The fixing frame is provided with a first positioning portion, and the first positioning portion is used to be positioned and matched with the second positioning portion on the knob device to limit the fixing frame from rotating with the knob device.

2. The endoscope knob brake device according to claim 1, characterized in that: The brake button comprises a button body and a ring sleeve arranged on the button body, the ring sleeve is sleeved outside the fixing frame, and the pushing part is arranged on the inner wall of the ring sleeve.

3. The endoscope knob brake device according to claim 2, characterized in that: The pushing portion is formed by the inner wall of the ring sleeve protruding toward the center of the ring sleeve.

4. The endoscope knob brake device according to claim 1, characterized in that: The brake button is provided with a toggle portion, and the toggle portion extends along the radial protrusion of the brake button; or, The brake button is provided with a toggle portion, and the toggle portion protrudes and extends in a direction away from the fixing frame.

5. The endoscope knob brake device according to claim 1, characterized in that: The first positioning portion is a positioning groove or a positioning protrusion on the fixing frame.

6. The endoscope knob brake device according to claim 5, characterized in that: There are a plurality of the first positioning portions, and the plurality of the first positioning portions are arranged at intervals around the working chamber.

7. The endoscope knob brake device according to claim 1, characterized in that: The brake button is provided with an arc groove, the arc groove is arranged around the working cavity, and the arc groove is used to cooperate with the limiting column on the shell to limit the rotation range of the brake button; or, A first limiting block is disposed on the inner wall of the brake button, and a second limiting block is disposed on the outer wall of the fixing frame. The first limiting block cooperates with the second limiting block to limit the rotation range of the brake button.

8. An endoscope handle, characterized in that: The endoscope handle includes a knob device and two endoscope knob brake devices according to any one of claims 1 to 7, wherein the knob device includes a shell, a first wire pull wheel, a second wire pull wheel, a first knob and a second knob, wherein the first wire pull wheel extends out of the shell and is connected to the first knob, the second wire pull wheel passes through the first wire pull wheel and extends out of the shell and is connected to the second knob, one endoscope knob brake device is used to brake the first knob or the first wire pull wheel, and the other endoscope knob brake device is used to brake the second knob or the second wire pull wheel.

9. An endoscope, characterized in that: Includes the endoscope handle as described in claim 8.

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