Endoscope self-locking device and endoscope

Abstract

The present invention relates to the technical field of endoscopes, and specifically to an endoscope self-locking device and an endoscope. The self-locking device includes a housing and a rotating handle, wherein a locking member 1 is fixedly arranged in the housing, the locking member 1 is rotatably connected to a rotating shaft, and a locking mechanism for cooperating with the locking member 1 is movably connected to the rotating shaft; the locking mechanism includes a base, a push rod and a locking member 2, the housing is fixedly connected to the base, the base is threadedly connected to the push rod, the push rod passes through the base and the housing, the push rod is used to push the locking member 2, the locking member 2 is movably connected to the rotating shaft, and the locking member 2 moves axially along the rotating shaft; the push rod controls the locking member 2 to cooperate with the locking member 1 to achieve self-locking. The rotating handle of the present invention can achieve self-locking, realize the locking of the insertion tube, ensure the stability of the insertion tube imaging, and reduce the fatigue intensity of the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an endoscope self-locking device and an endoscope. Background Art

[0002] In endoscope products, the bending and rotation of the end of the insertion tube is achieved by turning the handle, but the bending and rotation of the insertion tube has a certain resilience. When the user does not apply force to the handle during operation, the insertion tube will rebound and deform. When observing a certain angle inside the human body, the user needs to keep applying force to the handle to keep the bending and rotation of the insertion tube in a specific position. However, if the user keeps applying force to control the insertion tube to remain in a specific position, it will cause fatigue to the user and the control stability is poor. Therefore, a self-locking structure needs to be provided to keep the insertion tube in a specific position. Summary of the invention

[0003] The object of the present invention is to provide an endoscope self-locking device to solve the technical problem in the prior art that the handle cannot achieve self-locking when the handle is turned to adjust the bending and rotation of the insertion tube.

[0004] The present invention is achieved through the following technical solutions:

[0005] An endoscope self-locking device comprises a housing and a rotating handle, wherein the rotating handle is connected to the housing and rotates relative to the housing;

[0006] The rotating handle comprises a toggle bracket, a left bracket, a right bracket and a rotating shaft, wherein the toggle bracket is fixedly connected to the left bracket and the right bracket respectively, and the left bracket and the right bracket are both connected to the rotating shaft, and the rotating shaft passes through the housing;

[0007] A locking member 1 is fixedly disposed in the housing, the locking member 1 is rotatably connected to a rotating shaft, and a locking mechanism for cooperating with the locking member 1 is movably connected to the rotating shaft;

[0008] The locking mechanism comprises a base, a push rod and a second locking member, the base is fixedly connected to the housing, the push rod is threadedly connected to the base, the push rod passes through the base and the housing, the push rod is used to push the second locking member, the second locking member is movably connected to the rotating shaft, and the second locking member can only move along the axial direction of the rotating shaft;

[0009] The push rod controls the locking member 2 to cooperate with the locking member 1 to achieve self-locking.

[0010] Working principle: Rotate the push rod to push locking piece 1, and when locking piece 1 reaches the limit position, it cooperates with locking piece 1 to lock, so that the rotating handle can be self-locking.

[0011] It should be noted that locking member 1 can only move along the axial direction of the rotating shaft, and the push rod pushes locking member 1 to move in the direction close to locking member 2, and there is an extreme position for locking member 1 to move in the direction of locking member 2, and this extreme position can just ensure that locking member 1 cooperates with locking member 2, and at the same time, locking member 1 and the rotating shaft are relatively fixed at this extreme position.

[0012] Preferably, the locking member 1 and the locking member 2 are engaged with each other through a toothed structure.

[0013] Preferably, the locking member 1 and the locking member 2 are both geared disc structures.

[0014] The gear teeth mesh with each other and have a larger contact surface, which can achieve a better locking effect.

[0015] The cooperation mode of locking member 1 and locking member 2 is not limited to the meshing of toothed structures, and other structures that can make locking member 1 and locking member 2 cooperate to achieve the purpose of locking are all acceptable; for example, a groove can be provided on locking member 1, and the outer diameter of locking member 2 is adapted to the groove, and locking member 2 falls into the groove, which can also achieve the purpose of the present invention.

[0016] Preferably, a connecting block is provided on the second locking member, a connecting groove is provided on the connecting block along the axial direction of the rotating shaft, and the connecting block is slidably connected to the rotating shaft through the connecting groove.

[0017] It should be noted that two connecting shafts can be set on the rotating shaft, the connecting shafts are connected in the connecting grooves, and the connecting grooves can move relative to the connecting shafts; when in the locked state, the push rod acts on the locking member 2 to fix the connecting groove and the connecting shaft relatively.

[0018] During use, the push rod pushes the locking piece 2 to move and cooperate with the locking piece 1. At this time, the end of the connecting groove away from the locking piece 1 slides to the position closest to the locking piece 1, and cooperates with the connecting shaft to achieve the effect of fixedly connecting the locking piece 2 and the rotating shaft; the locking piece 2 cooperates with the locking piece 1 to fix the rotating handle, achieving the effect of self-locking of the rotating handle.

[0019] Preferably, a spiral groove is provided in the base, and a spherical protrusion matching with the spiral groove is provided on the push rod.

[0020] Preferably, the spherical protrusions are provided in plurality, and the plurality of spherical protrusions are evenly arranged on the push rod. The plurality of spherical protrusions are all matched with the spiral groove to realize the rotation extension and contraction of the push rod.

[0021] Preferably, a spiral groove is provided in the base, and a spiral boss matching with the spiral groove is provided on the push rod.

[0022] An endoscope comprises the self-locking device mentioned above.

[0023] By adopting the above technical solution, the present invention has the following advantages:

[0024] 1. The rotating handle of the present invention can realize self-locking, realize locking of the insertion tube, ensure the stability of the insertion tube imaging, and reduce the fatigue intensity of the operator.

[0025] 2. In the present invention, both the locking member 1 and the locking member 2 are toothed disc structures; the toothed disc structure has a larger contact area and has a better restraining effect through tooth meshing and locking.

[0026] 3. The present invention has a simple structure, is easy to produce and assemble, and is easy to operate, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a front view of the present invention;

[0030] Figure 3 An exploded view of the present invention;

[0031] Figure 4 It is a front view of the exploded diagram of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0034] In the accompanying drawings: 10, rotating handle, 11, toggle bracket, 12, left bracket, 13, right bracket, 14, rotating shaft, 20, locking piece 1, 30, locking mechanism, 31, base, 32, push rod, 33, locking piece 2, 331, connecting block, 332, connecting groove, 311, spiral groove, 321, spherical protrusion. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, 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 indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] 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 one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1

[0041] This embodiment provides an endoscope self-locking device, including a housing and a rotating handle 10, wherein the rotating handle 10 is connected to the housing and rotates relative to the housing;

[0042] The rotating handle 10 includes a toggle bracket 11, a left bracket 12, a right bracket 13 and a rotating shaft 14, wherein the toggle bracket 11 is fixedly connected to the left bracket 12 and the right bracket 13 respectively, and the left bracket 12 and the right bracket 13 are both connected to the rotating shaft 14, and the rotating shaft 14 passes through the housing;

[0043] A locking member 20 is fixedly disposed in the housing, and the locking member 20 is rotatably connected to the rotating shaft 14, and a locking mechanism 30 for cooperating with the locking member 20 is movably connected to the rotating shaft 14;

[0044] The locking mechanism 30 includes a base 31, a push rod 32 and a second locking member 33. The base 31 is fixedly connected to the outer shell, and the push rod 32 is threadedly connected to the base 31. The push rod 32 passes through the base 31 and the outer shell, and is used to push the second locking member 33. The push rod 32 is in contact with the second locking member 33, but not connected. The second locking member 33 is movably connected to the rotating shaft 14, and the second locking member 33 can only move along the axial direction of the rotating shaft 14. The shape of the base 31 is not fixed, and can be cylindrical or rectangular. At the same time, the base 31 can be integrally formed with the outer shell. At the same time, a spiral groove 311 can also be directly opened on the outer shell.

[0045] The push rod 32 controls the second locking member 33 to cooperate with the first locking member 20 to achieve self-locking.

[0046] Working principle: the push rod 32 is rotated to push the locking member 2 33 through the push rod 32. When the locking member 2 33 reaches the limit position, it cooperates with the locking member 1 20 to lock, so that the rotating handle 10 can achieve self-locking.

[0047] It should be noted that the locking member 20 can only move axially along the rotating shaft 14, and the push rod 32 pushes the locking member 2 33 to move in the direction close to the locking member 20, and the locking member 2 33 has an extreme position when moving in the direction of the locking member 20, and this extreme position can just ensure that the locking member 20 cooperates with the locking member 2 33, and at the same time, the locking member 20 and the rotating shaft 14 are relatively fixed at this extreme position.

[0048] Example 2

[0049] On the basis of Embodiment 1, preferably, the locking member 1 20 and the locking member 2 33 are meshed through a tooth structure.

[0050] Preferably, the locking member 1 20 and the locking member 2 33 are both geared disc structures.

[0051] The gear teeth mesh with each other and have a larger contact surface, which can achieve a better locking effect.

[0052] The cooperation mode of the locking member 20 and the locking member 2 33 is not limited to the meshing of the toothed structure, and other structures that can make the locking member 20 and the locking member 2 33 cooperate to achieve the purpose of locking are all acceptable; for example, a groove can be provided on the locking member 20, and the outer diameter of the locking member 2 33 is adapted to the groove, and the locking member 2 33 falls into the groove, which can also achieve the purpose of the present invention.

[0053] Example 3

[0054] On the basis of Example 1 or 2, preferably, a connecting block 331 is provided on the locking member 33 , and a connecting groove 332 is provided on the connecting block 331 along the axial direction of the rotating shaft 14 , and the connecting block 331 is slidably connected to the rotating shaft 14 through the connecting groove 332 .

[0055] It should be noted that two connecting shafts can be set on the rotating shaft 14, and the connecting shafts are connected in the connecting groove 332, and the connecting groove 332 can move relative to the connecting shaft; when in the locked state, the push rod 32 acts on the locking member 33 to fix the connecting groove 332 and the connecting shaft relatively.

[0056] During use, the push rod 32 pushes the locking member 233 to move and cooperate with the locking member 1 20. At this time, the end of the connecting groove 332 away from the locking member 20 slides to the position closest to the locking member 20, and cooperates with the connecting shaft to achieve the effect of fixing the locking member 233 and the rotating shaft 14. The locking member 233 cooperates with the locking member 20 to fix the rotating handle 10, achieving the effect of self-locking of the rotating handle 10.

[0057] Example 4

[0058] On the basis of Example 1, 2 or 3, Figure 5 and Figure 6 As shown, preferably, a spiral groove 311 is provided in the base 31 , and a spherical protrusion 321 matching with the spiral groove 311 is provided on the push rod 32 .

[0059] Preferably, the spherical protrusions 321 are provided in plurality, and the plurality of spherical protrusions 321 are evenly arranged on the push rod 32. The plurality of spherical protrusions 321 are all matched with the spiral groove 311 to realize the rotation extension and contraction of the push rod 32.

[0060] Example 5

[0061] Different from the fourth embodiment, preferably, a spiral groove 311 is provided in the base 31 , and a spiral boss cooperating with the spiral groove 311 is provided on the push rod 32 .

[0062] Example 6

[0063] An endoscope self-locking device comprises a housing and a rotating handle 10, wherein the rotating handle 10 is connected to the housing and rotates relative to the housing;

[0064] The rotating handle 10 includes a toggle bracket 11, a left bracket 12, a right bracket 13 and a rotating shaft 14, wherein the toggle bracket 11 is fixedly connected to the left bracket 12 and the right bracket 13 respectively, and the left bracket 12 and the right bracket 13 are both connected to the rotating shaft 14, and the rotating shaft 14 passes through the housing;

[0065] A locking member 20 is fixedly disposed in the housing, and the locking member 20 is rotatably connected to the rotating shaft 14, and a locking mechanism 30 for cooperating with the locking member 20 is movably connected to the rotating shaft 14;

[0066] The locking mechanism 30 includes a base 31, a push rod 32 and a second locking member 33. The base 31 is fixedly connected to the housing. The push rod 32 is threadedly connected to the base 31. The push rod 32 passes through the base 31 and the housing. The push rod 32 is used to push the second locking member 33. The push rod 32 is in contact with the second locking member 33 but not connected. The second locking member 33 is movably connected to the rotating shaft 14. The second locking member 33 can only move along the axial direction of the rotating shaft 14.

[0067] The push rod 32 controls the second locking member 33 to cooperate with the first locking member 20 to achieve self-locking.

[0068] Working principle: the push rod 32 is rotated to push the locking member 2 33 through the push rod 32. When the locking member 2 33 reaches the limit position, it cooperates with the locking member 1 20 to lock, so that the rotating handle 10 can achieve self-locking.

[0069] It should be noted that the locking member 20 can only move axially along the rotating shaft 14, and the push rod 32 pushes the locking member 2 33 to move in the direction close to the locking member 20, and the locking member 2 33 has an extreme position when moving in the direction of the locking member 20, and this extreme position can just ensure that the locking member 20 cooperates with the locking member 2 33, and at the same time, the locking member 20 and the rotating shaft 14 are relatively fixed at this extreme position.

[0070] Preferably, the locking member 1 20 and the locking member 2 33 are engaged with each other through a tooth structure.

[0071] Preferably, the locking member 1 20 and the locking member 2 33 are both geared disc structures.

[0072] The gear teeth mesh with each other and have a larger contact surface, which can achieve a better locking effect.

[0073] The cooperation mode of the locking member 20 and the locking member 2 33 is not limited to the meshing of the toothed structure, and other structures that can make the locking member 20 and the locking member 2 33 cooperate to achieve the purpose of locking are all acceptable; for example, a groove can be provided on the locking member 20, and the outer diameter of the locking member 2 33 is adapted to the groove, and the locking member 2 33 falls into the groove, which can also achieve the purpose of the present invention.

[0074] Preferably, a connecting block 331 is provided on the second locking member 33 , and a connecting groove 332 is provided on the connecting block 331 along the axial direction of the rotating shaft 14 , and the connecting block 331 is slidably connected to the rotating shaft 14 through the connecting groove 332 .

[0075] It should be noted that two connecting shafts can be set on the rotating shaft 14, and the connecting shafts are connected in the connecting groove 332, and the connecting groove 332 can move relative to the connecting shaft; when in the locked state, the push rod 32 acts on the locking member 33 to fix the connecting groove 332 and the connecting shaft relatively.

[0076] During use, the push rod 32 pushes the locking member 233 to move and cooperate with the locking member 1 20. At this time, the end of the connecting groove 332 away from the locking member 20 slides to the position closest to the locking member 20, and cooperates with the connecting shaft to achieve the effect of fixing the locking member 233 and the rotating shaft 14. The locking member 233 cooperates with the locking member 20 to fix the rotating handle 10, achieving the effect of self-locking of the rotating handle 10.

[0077] Preferably, a spiral groove 311 is provided in the base 31 , and a spherical protrusion 321 matching with the spiral groove 311 is provided on the push rod 32 .

[0078] Preferably, the spherical protrusions 321 are provided in plurality, and the plurality of spherical protrusions 321 are evenly arranged on the push rod 32. The plurality of spherical protrusions 321 are all matched with the spiral groove 311 to realize the rotation extension and contraction of the push rod 32.

[0079] Preferably, a spiral groove 311 is provided in the base 31 , and a spiral boss matching with the spiral groove 311 is provided on the push rod 32 .

[0080] Example 7

[0081] This embodiment provides an endoscope, including a housing and a rotating handle 10, wherein the rotating handle 10 is connected to the housing and rotates relative to the housing;

[0082] The rotating handle 10 includes a toggle bracket 11, a left bracket 12, a right bracket 13 and a rotating shaft 14, wherein the toggle bracket 11 is fixedly connected to the left bracket 12 and the right bracket 13 respectively, and the left bracket 12 and the right bracket 13 are both connected to the rotating shaft 14, and the rotating shaft 14 passes through the housing;

[0083] A locking member 20 is fixedly disposed in the housing, and the locking member 20 is rotatably connected to the rotating shaft 14, and a locking mechanism 30 for cooperating with the locking member 20 is movably connected to the rotating shaft 14;

[0084] The locking mechanism 30 includes a base 31, a push rod 32 and a second locking member 33. The base 31 is fixedly connected to the outer shell, and the push rod 32 is threadedly connected to the base 31. The push rod 32 passes through the base 31 and the outer shell, and is used to push the second locking member 33. The push rod 32 is in contact with the second locking member 33, but not connected. The second locking member 33 is movably connected to the rotating shaft 14, and the second locking member 33 can only move along the axial direction of the rotating shaft 14. The shape of the base 31 is not fixed, and can be cylindrical or rectangular. At the same time, the base 31 can be integrally formed with the outer shell. At the same time, a spiral groove 311 can also be directly opened on the outer shell.

[0085] The push rod 32 controls the second locking member 33 to cooperate with the first locking member 20 to achieve self-locking.

[0086] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

Claims

1. An endoscope self-locking device, comprising a housing and a rotating handle (10), characterized in that: The rotating handle (10) is connected to the housing, and the rotating handle (10) rotates relative to the housing; the rotating handle (10) comprises a toggle bracket (11), a left bracket (12), a right bracket (13) and a rotating shaft (14); the toggle bracket (11) is fixedly connected to the left bracket (12) and the right bracket (13), respectively; the left bracket (12) and the right bracket (13) are both connected to the rotating shaft (14); and the rotating shaft (14) passes through the housing; A locking member (20) is fixedly disposed in the housing, the locking member (20) is rotatably connected to a rotating shaft (14), and a locking mechanism (30) for cooperating with the locking member (20) is movably connected to the rotating shaft (14); The locking mechanism (30) comprises a base (31), a push rod (32) and a second locking member (33); the base (31) is fixedly connected to the housing; the push rod (32) is threadedly connected to the base (31); the push rod (32) passes through the base (31) and the housing; the push rod (32) is used to push the second locking member (33); the second locking member (33) is movably connected to the rotating shaft (14); the second locking member (33) can only move along the axial direction of the rotating shaft (14); The push rod (32) controls the locking member 2 (33) to cooperate with the locking member 1 (20) to achieve self-locking; a spiral groove (311) is provided in the base (31), and a spherical protrusion (321) that cooperates with the spiral groove (311) is provided on the push rod (32); A plurality of the spherical protrusions (321) are provided, and the plurality of spherical protrusions (321) are evenly arranged on the push rod (32).

2. An endoscope self-locking device as claimed in claim 1, characterized in that: The locking member 1 (20) and the locking member 2 (33) are meshed with each other through a toothed structure.

3. An endoscope self-locking device as claimed in claim 2, characterized in that: The locking member 1 (20) and the locking member 2 (33) are both toothed disc structures.

4. The endoscope self-locking device according to claim 1, characterized in that: The second locking member (33) is provided with a connecting block (331), and a connecting groove (332) is provided on the connecting block (331) along the axial direction of the rotating shaft (14). The connecting block (331) is slidably connected to the rotating shaft (14) through the connecting groove (332).

5. An endoscope, characterized in that: The invention comprises the self-locking device as claimed in any one of claims 1 to 4.

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