Snake bone component of endoscope

Abstract

The utility model discloses an endoscope snake bone component which comprises a hollow pipe body, and a spiral body extending in a spiral shape is arranged in the hollow pipe body. Wherein a center body is arranged in the spiral body, a plurality of first limiting assemblies connected with the center body are sequentially arranged on the edge portion of one side of the spiral body, and each first limiting assembly comprises a first left limiting hook and a first right limiting hook; a plurality of second limiting assemblies connected with the center body are sequentially arranged on the other side edge of the spiral body, each second limiting assembly comprises a second left limiting hook and a second right limiting hook, and the first left limiting hooks are matched with the corresponding second right limiting hooks in a hooking mode; and the first right limiting hooks are matched with the corresponding second left limiting hooks in a hooking manner. Buffering and limiting can be carried out before bending to the limiting position, whether bending to the limiting position is about to be carried out or not can be judged according to the magnitude of feedback force, and then disjunction and breakage can be avoided.

Description

Technical Field

[0001] The utility model relates to an endoscope snake bone component. Background Art

[0002] At present, the snake bone is one of the key components in the structure of an endoscope. It can be flexibly bent to allow the endoscope lens to turn in different directions, thereby facilitating the observation of targets at different angles and positions. A limiting structure is usually provided in the snake bone. For example, a proximal snake bone segment disclosed in the Chinese patent publication number CN218651747U has a limiting structure. However, the limiting structure in the snake bone does not usually have a buffering function. The limiting structure will only be limited when the snake bone is bent to the extreme position. Since the user cannot determine whether the snake bone has been bent to the extreme position during use, when the snake bone is bent to the extreme position and the user inadvertently applies a large amount of force, the limiting structure will undergo irreversible plastic deformation and damage, which will cause the entire snake bone to become disjointed and broken. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the existing technology and provide an endoscope snake bone component, which can perform buffering and limiting before bending to the extreme position, and can judge whether it is about to bend to the extreme position by the size of the feedback force, thereby avoiding dislocation and breakage.

[0004] In order to solve the above technical problems, the technical solution of the present utility model is: an endoscope snake bone component, comprising a hollow tube body, wherein the hollow tube body has a helical body extending in a spiral shape;

[0005] The spiral body is provided with a central body;

[0006] A plurality of first limiting components connected to the central body are sequentially arranged on one side of the spiral body, wherein the first limiting components include a first left limiting hook and a first right limiting hook;

[0007] A plurality of second limiting components connected to the central body are sequentially provided on the other side of the spiral body, wherein the second limiting components include a second left limiting hook and a second right limiting hook;

[0008] The first left limiting hook is hooked and matched with the corresponding second right limiting hook, and the first right limiting hook is hooked and matched with the corresponding second left limiting hook. A deformation gap is respectively provided between the first left limiting hook and the corresponding second right limiting hook, and between the first right limiting hook and the corresponding second left limiting hook;

[0009] A first left deformation groove is provided between the first left limiting hook and the central body for causing the first left limiting hook to elastically deform;

[0010] A first right deformation groove is provided between the first right limiting hook and the central body for causing the first right limiting hook to elastically deform;

[0011] A second left deformation groove is provided between the second left limiting hook and the central body for causing the second left limiting hook to elastically deform;

[0012] A second right deformation groove for elastically deforming the second right limiting hook is provided between the second right limiting hook and the central body.

[0013] Furthermore, a first groove is provided between the first left limiting hook in the first limiting assembly and the first right limiting hook in the adjacent first limiting assembly, and the first groove is respectively connected to the corresponding first left deformation groove and the corresponding first right deformation groove.

[0014] Furthermore, a second groove is provided between the second left limiting hook in the second limiting assembly and the second right limiting hook in the adjacent second limiting assembly, and the second groove is respectively connected to the corresponding second left deformation groove and the corresponding second right deformation groove.

[0015] Furthermore, the first limiting assembly further includes a first mounting arm connected to the central body, and the first left limiting hook and the first right limiting hook are both connected to the first mounting arm;

[0016] The second limiting assembly further includes a second mounting arm connected to the central body, and the second left limiting hook and the second right limiting hook are both connected to the second mounting arm.

[0017] Furthermore, the first left limiting hook includes a first left extending portion, a first left connecting portion and a first left hook portion;

[0018] The first left extension portion is connected to the first mounting arm and extends to the left, the lower end portion of the first left connection portion is connected to the first left extension portion, and the first left hook portion is connected to the upper end portion of the first left connection portion and extends to the right;

[0019] The first right limiting hook includes a first right extending portion, a first right connecting portion and a first right hook portion;

[0020] The first right extension portion is connected to the first mounting arm and extends to the right, the lower end portion of the first right connection portion is connected to the first right extension portion, and the first right hook portion is connected to the upper end portion of the first right connection portion and extends to the left;

[0021] The second left limiting hook includes a second left extending portion, a second left connecting portion and a second left hook portion;

[0022] The second left extension portion is connected to the second mounting arm and extends to the left, the upper end portion of the second left connection portion is connected to the second left extension portion, and the second left hook portion is connected to the lower end portion of the second left connection portion and extends to the right;

[0023] The second right limiting hook includes a second right extending portion, a second right connecting portion and a second right hook portion;

[0024] The second right extension portion is connected to the second mounting arm and extends to the right, the upper end of the second right connection portion is connected to the second right extension portion, and the second right hook portion is connected to the lower end of the second right connection portion and extends to the left;

[0025] The first left hook portion is hooked and fitted between the second right extension portion and the second right hook portion, the second right hook portion is hooked and fitted between the first left extension portion and the first left hook portion, and the deformation gap is provided between the first left hook portion and the second right hook portion;

[0026] Wherein, the first right hook portion is hooked and fitted between the second left extension portion and the second left hook portion, the second left hook portion is hooked and fitted between the first right extension portion and the first right hook portion, and the deformation gap is provided between the first right hook portion and the second left hook portion.

[0027] Furthermore, the hollow tube body further includes a front cylindrical portion and a rear cylindrical portion, one end of the spiral is connected to the front cylindrical portion, and the other end of the spiral is connected to the rear cylindrical portion.

[0028] After adopting the above technical solution, when the endoscope snake bone component bends, the bent outer side of the endoscope snake bone component will be stretched, so the deformation gap between the first left limit hook and the corresponding second right limit hook on the bent outer side of the endoscope snake bone component will gradually become smaller, and the deformation gap between the first right limit hook and the corresponding second left limit hook will also gradually become smaller. When the deformation gap is reduced to zero, the first left limit hook hooks the corresponding second right limit hook, and the first right limit hook also hooks the corresponding second left limit hook. At this time, the endoscope snake bone component enters the buffer stroke.

[0029] After entering the buffer stroke, due to the provision of the first left deformation groove and the second right deformation groove, the first left limit hook and the second right limit hook will hook each other and produce elastic deformation and thus generate elastic force. At the same time, due to the provision of the first right deformation groove and the second left deformation groove, the first right limit hook and the second left limit hook will hook each other and produce elastic deformation and thus generate elastic force. The elastic force will be fed back to the user, making the bending force required to bend the endoscope snake bone component larger. Therefore, when the endoscope snake bone component enters the buffer stroke, the required bending force increases, indicating that the endoscope snake bone component is about to bend to the limit position, thereby reminding the user to operate with caution and avoid excessive force, thereby preventing the endoscope snake bone component from being disjointed and broken. In summary, the endoscope snake bone component will first enter the buffer stroke before bending to the limit position in order to perform buffer limiting. The elastic force generated after entering the buffer stroke will be fed back to the user, making the required bending force larger. Then, it can be judged by the magnitude of the feedback force whether it has entered the buffer stroke and is about to bend to the limit position, thereby reminding the user to operate with caution and avoid excessive force, thereby preventing disjoint and breakage. In addition, through the elastic deformation of the first left limiting hook and the second right limiting hook and through the elastic deformation of the first right limiting hook and the second left limiting hook, the bending angle can be increased without increasing the length of the endoscope snake component. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional diagram of the endoscope snake bone component of the present invention;

[0031] Figure 2 A three-dimensional diagram of the endoscope snake bone component of the present invention in a bent state;

[0032] Figure 3 This is a front view of the endoscope snake bone component of the present invention;

[0033] Figure 4 It is an expanded view of the spiral of the utility model;

[0034] Figure 5 for Figure 1 Partial detail of point A in the middle. DETAILED DESCRIPTION

[0035] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0036] like Figures 1 to 5 As shown, an endoscope snake bone component includes a hollow tube body 1, wherein the hollow tube body 1 has a spiral body 2 extending in a spiral shape;

[0037] The spiral body 2 is provided with a central body 3;

[0038] A plurality of first limiting components 4 connected to the central body 3 are sequentially provided on one side of the spiral body 2, wherein the first limiting component 4 includes a first left limiting hook 5 and a first right limiting hook 6;

[0039] A plurality of second limiting components 7 connected to the central body 3 are sequentially provided on the other side of the spiral body 2, wherein the second limiting components 7 include a second left limiting hook 8 and a second right limiting hook 9;

[0040] The first left limiting hook 5 is hooked and matched with the corresponding second right limiting hook 9, and the first right limiting hook 6 is hooked and matched with the corresponding second left limiting hook 8. A deformation gap 10 is respectively provided between the first left limiting hook 5 and the corresponding second right limiting hook 9, and between the first right limiting hook 6 and the corresponding second left limiting hook 8.

[0041] A first left deformation groove 11 is provided between the first left limiting hook 5 and the central body 3 for causing the first left limiting hook 5 to elastically deform;

[0042] A first right deformation groove 12 is provided between the first right limiting hook 6 and the central body 3 for causing the first right limiting hook 6 to elastically deform;

[0043] A second left deformation groove 13 is provided between the second left limiting hook 8 and the central body 3 for causing the second left limiting hook 8 to elastically deform;

[0044] A second right deformation groove 14 is provided between the second right limiting hook 9 and the central body 3 for causing the second right limiting hook 9 to elastically deform.

[0045] Specifically, when the endoscope snake bone component bends, the bent outer side of the endoscope snake bone component will be stretched, so the deformation gap 10 between the first left limit hook 5 and the corresponding second right limit hook 9 on the bent outer side of the endoscope snake bone component will gradually become smaller, and the deformation gap 10 between the first right limit hook 6 and the corresponding second left limit hook 8 will also gradually become smaller. When the deformation gap 10 is reduced to zero, the first left limit hook 5 hooks the corresponding second right limit hook 9, and the first right limit hook 6 also hooks the corresponding second left limit hook 8. At this time, the endoscope snake bone component enters the buffer stroke. After entering the buffer stroke, due to the provision of the first left deformation groove 11 and the second right deformation groove 14, the first left limit hook 5 and the second right limit hook 9 will hook with each other and produce elastic deformation and thus generate elastic force. At the same time, due to the provision of the first right deformation groove 12 and the second left deformation groove 13, the first right limit hook 6 and the second left limit hook 8 will hook with each other and produce elastic deformation and thus generate elastic force. The elastic force will be fed back to the user to increase the bending force required to bend the endoscope snake bone component. Therefore, when the endoscope snake bone component enters the buffer stroke, the required bending force increases, which means that the endoscope snake bone component is about to bend to the extreme position, thereby reminding the user to operate carefully to avoid excessive force, thereby avoiding dislocation and breakage of the endoscope snake bone component. In summary, the endoscope snake bone component will first enter the buffer stroke before bending to the extreme position to perform buffer limiting. The elastic force generated after entering the buffer stroke will be fed back to the user to increase the required bending force, and then the magnitude of the feedback force can be used to determine whether it has entered the buffer stroke and is about to bend to the extreme position, thereby reminding the user to operate with caution to avoid excessive force, thereby avoiding disjoint fracture. In addition, through the elastic deformation of the first left limit hook 5 and the second right limit hook 9, and through the elastic deformation of the first right limit hook 6 and the second left limit hook 8, the bending angle can be increased without increasing the length of the endoscope snake bone component.

[0046] In this embodiment, the first left limiting hook 5 corresponds to the second right limiting hook 9 in a one-to-one manner, and the first right limiting hook 6 corresponds to the second left limiting hook 8 in a one-to-one manner.

[0047] like Figures 1 to 5 As shown, a first groove 15 is provided between the first left limiting hook 5 in the first limiting component 4 and the first right limiting hook 6 in the adjacent first limiting component 4, and the first groove 15 is respectively connected to the corresponding first left deformation groove 11 and the corresponding first right deformation groove 12.

[0048] like Figures 1 to 5As shown, a second groove 16 is provided between the second left limiting hook 8 in the second limiting component 7 and the second right limiting hook 9 in the adjacent second limiting component 7, and the second groove 16 is respectively connected to the corresponding second left deformation groove 13 and the corresponding second right deformation groove 14.

[0049] like Figures 1 to 5 As shown, the first limiting assembly 4 may further include a first mounting arm 17 connected to the central body 3, and the first left limiting hook 5 and the first right limiting hook 6 are both connected to the first mounting arm 17;

[0050] The second limiting assembly 7 may further include a second mounting arm 18 connected to the central body 3 , and the second left limiting hook 8 and the second right limiting hook 9 are both connected to the second mounting arm 18 .

[0051] like Figures 1 to 5 As shown, the first left limiting hook 5 may include a first left extending portion 19, a first left connecting portion 20 and a first left hook portion 21;

[0052] The first left extension portion 19 is connected to the first mounting arm 17 and extends to the left. The lower end of the first left connection portion 20 is connected to the first left extension portion 19. The first left hook portion 21 is connected to the upper end of the first left connection portion 20 and extends to the right.

[0053] The first right limiting hook 6 may include a first right extending portion 22, a first right connecting portion 23 and a first right hook portion 24;

[0054] The first right extension portion 22 is connected to the first mounting arm 17 and extends to the right. The lower end of the first right connection portion 23 is connected to the first right extension portion 22. The first right hook portion 24 is connected to the upper end of the first right connection portion 23 and extends to the left.

[0055] The second left limiting hook 8 may include a second left extending portion 25 , a second left connecting portion 26 and a second left hook portion 27 ;

[0056] The second left extension portion 25 is connected to the second mounting arm 18 and extends to the left. The upper end of the second left connection portion 26 is connected to the second left extension portion 25. The second left hook portion 27 is connected to the lower end of the second left connection portion 26 and extends to the right.

[0057] The second right limiting hook 9 may include a second right extending portion 28, a second right connecting portion 29 and a second right hook portion 30;

[0058] The second right extension portion 28 is connected to the second mounting arm 18 and extends to the right. The upper end of the second right connection portion 29 is connected to the second right extension portion 28. The second right hook portion 30 is connected to the lower end of the second right connection portion 29 and extends to the left.

[0059] The first left hook portion 21 is hooked and fitted between the second right extension portion 28 and the second right hook portion 30, and the second right hook portion 30 is hooked and fitted between the first left extension portion 19 and the first left hook portion 21. The deformation gap 10 is provided between the first left hook portion 21 and the second right hook portion 30.

[0060] The first right hook portion 24 is hooked and fitted between the second left extension portion 25 and the second left hook portion 27 , the second left hook portion 27 is hooked and fitted between the first right extension portion 22 and the first right hook portion 24 , and the deformation gap 10 is provided between the first right hook portion 24 and the second left hook portion 27 .

[0061] like Figures 1 to 5 As shown, the hollow tube body 1 may further include a front cylindrical portion 31 and a rear cylindrical portion 32 , one end of the spiral body 2 is connected to the front cylindrical portion 31 , and the other end of the spiral body 2 is connected to the rear cylindrical portion 32 .

[0062] To sum up, when the endoscope snake bone component bends, the bent outer side of the endoscope snake bone component will be stretched, so the deformation gap 10 between the first left limit hook 5 and the corresponding second right limit hook 9 on the bent outer side of the endoscope snake bone component will gradually become smaller, and the deformation gap 10 between the first right limit hook 6 and the corresponding second left limit hook 8 will also gradually become smaller. When the deformation gap 10 is reduced to zero, the first left limit hook 5 hooks the corresponding second right limit hook 9, and the first right limit hook 6 also hooks the corresponding second left limit hook 8. At this time, the endoscope snake bone component enters the buffer stroke.

[0063] After entering the buffer stroke, due to the provision of the first left deformation groove 11 and the second right deformation groove 14, the first left limit hook 5 and the second right limit hook 9 will hook with each other and produce elastic deformation and thus generate elastic force. At the same time, due to the provision of the first right deformation groove 12 and the second left deformation groove 13, the first right limit hook 6 and the second left limit hook 8 will hook with each other and produce elastic deformation and thus generate elastic force. The elastic force will be fed back to the user to increase the bending force required to bend the endoscope snake bone component. Therefore, when the endoscope snake bone component enters the buffer stroke, the required bending force increases, which means that the endoscope snake bone component is about to bend to the extreme position, thereby reminding the user to operate carefully to avoid excessive force, thereby avoiding dislocation and breakage of the endoscope snake bone component. In summary, the endoscope snake bone component will first enter the buffer stroke before bending to the extreme position to perform buffer limiting. The elastic force generated after entering the buffer stroke will be fed back to the user to increase the required bending force, and then the magnitude of the feedback force can be used to determine whether it has entered the buffer stroke and is about to bend to the extreme position, thereby reminding the user to operate with caution to avoid excessive force, thereby avoiding disjoint fracture. In addition, through the elastic deformation of the first left limit hook 5 and the second right limit hook 9, and through the elastic deformation of the first right limit hook 6 and the second left limit hook 8, the bending angle can be increased without increasing the length of the endoscope snake bone component.

[0064] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An endoscope snake bone component, characterized in that: It comprises a hollow tube (1), wherein the hollow tube (1) has a helical body (2) extending in a helical shape; The spiral body (2) is provided with a central body (3); A plurality of first limiting components (4) connected to the central body (3) are sequentially arranged on one side of the spiral body (2), wherein the first limiting component (4) includes a first left limiting hook (5) and a first right limiting hook (6); A plurality of second limiting components (7) connected to the central body (3) are sequentially arranged on the other side of the spiral body (2), and the second limiting components (7) include a second left limiting hook (8) and a second right limiting hook (9); The first left limiting hook (5) is hooked and matched with the corresponding second right limiting hook (9), and the first right limiting hook (6) is hooked and matched with the corresponding second left limiting hook (8). A deformation gap (10) is provided between the first left limiting hook (5) and the corresponding second right limiting hook (9), and between the first right limiting hook (6) and the corresponding second left limiting hook (8). A first left deformation groove (11) is provided between the first left limiting hook (5) and the central body (3) for causing the first left limiting hook (5) to elastically deform; A first right deformation groove (12) is provided between the first right limiting hook (6) and the central body (3) for causing the first right limiting hook (6) to produce elastic deformation; A second left deformation groove (13) is provided between the second left limiting hook (8) and the central body (3) for causing the second left limiting hook (8) to elastically deform; A second right deformation groove (14) for causing the second right limiting hook (9) to produce elastic deformation is provided between the second right limiting hook (9) and the central body (3).

2. The endoscope snake bone component according to claim 1, characterized in that: A first groove (15) is provided between the first left limiting hook (5) in the first limiting assembly (4) and the first right limiting hook (6) in the adjacent first limiting assembly (4), and the first groove (15) is respectively connected to the corresponding first left deformation groove (11) and the corresponding first right deformation groove (12).

3. The endoscope snake bone component according to claim 1, characterized in that: A second groove (16) is provided between the second left limiting hook (8) in the second limiting assembly (7) and the second right limiting hook (9) in the adjacent second limiting assembly (7), and the second groove (16) is respectively connected to the corresponding second left deformation groove (13) and the corresponding second right deformation groove (14).

4. The endoscope snake bone component according to claim 1, characterized in that: The first limiting assembly (4) further comprises a first mounting arm (17) connected to the central body (3), and the first left limiting hook (5) and the first right limiting hook (6) are both connected to the first mounting arm (17); The second limiting assembly (7) further comprises a second mounting arm (18) connected to the central body (3), and the second left limiting hook (8) and the second right limiting hook (9) are both connected to the second mounting arm (18).

5. The endoscope snake bone component according to claim 4, characterized in that: The first left limiting hook (5) comprises a first left extending portion (19), a first left connecting portion (20) and a first left hook portion (21); The first left extension portion (19) is connected to the first mounting arm (17) and extends to the left, the lower end of the first left connection portion (20) is connected to the first left extension portion (19), and the first left hook portion (21) is connected to the upper end of the first left connection portion (20) and extends to the right; The first right limiting hook (6) comprises a first right extending portion (22), a first right connecting portion (23) and a first right hook portion (24); The first right extension portion (22) is connected to the first mounting arm (17) and extends to the right, the lower end portion of the first right connection portion (23) is connected to the first right extension portion (22), and the first right hook portion (24) is connected to the upper end portion of the first right connection portion (23) and extends to the left; The second left limiting hook (8) comprises a second left extending portion (25), a second left connecting portion (26) and a second left hook portion (27); The second left extension portion (25) is connected to the second mounting arm (18) and extends to the left, the upper end portion of the second left connection portion (26) is connected to the second left extension portion (25), and the second left hook portion (27) is connected to the lower end portion of the second left connection portion (26) and extends to the right; The second right limiting hook (9) comprises a second right extending portion (28), a second right connecting portion (29) and a second right hook portion (30); The second right extension portion (28) is connected to the second mounting arm (18) and extends to the right, the upper end portion of the second right connection portion (29) is connected to the second right extension portion (28), and the second right hook portion (30) is connected to the lower end portion of the second right connection portion (29) and extends to the left; The first left hook portion (21) is hooked and fitted between the second right extension portion (28) and the second right hook portion (30), the second right hook portion (30) is hooked and fitted between the first left extension portion (19) and the first left hook portion (21), and the deformation gap (10) is provided between the first left hook portion (21) and the second right hook portion (30); The first right hook portion (24) is hooked and fitted between the second left extension portion (25) and the second left hook portion (27), the second left hook portion (27) is hooked and fitted between the first right extension portion (22) and the first right hook portion (24), and the deformation gap (10) is provided between the first right hook portion (24) and the second left hook portion (27).

6. The endoscope snake bone component according to claim 1, characterized in that: The hollow tube (1) further comprises a front cylindrical portion (31) and a rear cylindrical portion (32); one end of the spiral (2) is connected to the front cylindrical portion (31), and the other end of the spiral (2) is connected to the rear cylindrical portion (32).

Images