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, and 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 rack, a rotating member, a push rod and a locking member 2, wherein the rack cooperates with the teeth arranged on the rotating member, the rotating member is axially fixed and circumferentially rotated, the rotating member is movably connected to a push rod, 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 rack 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; the rotating handle is rotatably connected to a locking member, and the rotating member is fixedly arranged in 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; the rotating shaft passes through the housing and is fixedly connected to the left bracket and the right bracket respectively;

[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 rack, a rotating member, a push rod and a second locking member, wherein the rack is movably connected to the housing, the rack cooperates with teeth arranged on the rotating member, the rotating member is axially fixed and circumferentially rotated, the rotating member is threadedly connected with a push rod, 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 rack controls the locking member 2 to cooperate with the locking member 1 to achieve self-locking.

[0010] Working principle: Push the rack, and the rack drives the rotating part to rotate. Because the rotating part is axially fixed, the push rod rotates and extends inside the rotating part to push the locking part 2 to move axially along the rotating shaft. When the locking part 2 reaches the limit position, it cooperates with the locking part 1 to lock, so that the rotating handle can be self-locking.

[0011] Preferably, the locking member 1 and the locking member 2 are engaged with each other through a toothed structure.

[0012] Preferably, the locking member 1 and the locking member 2 are both geared disc structures.

[0013] 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.

[0014] It should be noted that two connecting shafts can be set on the rotating shaft, and the connecting shafts are connected in the connecting grooves, and the connecting grooves can move relative to the connecting shafts; in the locked state, the push rod acts on the locking member 2 to make the locking member 2 cooperate with the locking member 1. At this time, the connecting groove and the connecting shaft are relatively fixed, that is, the locking member 2 and the rotating shaft are relatively fixed, so the locking member 2 is fixed at this time, then the rotating shaft is fixed, and when the rotating shaft is fixed, the toggle member is fixed.

[0015] Preferably, a spiral groove is provided in the rotating member, and a spherical protrusion cooperating with the spiral groove is provided on the push rod.

[0016] 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.

[0017] Preferably, a locking piece is provided on the rack.

[0018] The locking piece may be a locking piece in the prior art, such as a connecting piece on the telescopic rod of the umbrella handle.

[0019] Preferably, a handle is provided on the rack.

[0020] Preferably, an accommodating cavity is provided in the shell, and a rotating member is provided in the accommodating cavity.

[0021] An endoscope comprises the self-locking device mentioned above.

[0022] By adopting the above technical solution, the present invention has the following advantages:

[0023] 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.

[0024] 2. In the present invention, both the locking member 1 and the locking member 2 are geared disc structures; the geared disc structure has a larger contact area and has a better restraining effect through tooth meshing and locking.

[0025] 3. The present invention has a simple structure, is easy to produce and assemble, and is easy to operate, thereby reducing production costs.

[0026] 4. In the present invention, the handle provided on the rack is more ergonomic and more convenient for users to operate. 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 structural schematic diagram of an embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of an embodiment of the present invention;

[0033] Figure 6 It is a structural schematic diagram of an embodiment of the present invention;

[0034] Figure 7 It is a structural schematic diagram of an embodiment of the present invention;

[0035] Figure 8 A schematic structural diagram of an embodiment of the present invention;

[0036] 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, rack, 32, rotating piece, 33, push rod, 34, locking piece 2, 311, handle, 321, spiral groove, 331, spherical protrusion, 341, connecting block, 342, connecting groove. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] 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.

[0043] Example 1

[0044] 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;

[0045] The rotating handle 10 includes 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 rotating shaft 14 passes through the housing and is fixedly connected to the left bracket 12 and the right bracket 13 respectively;

[0046] A locking member 20 is fixedly disposed in the housing, and the locking member 20 can be fixedly connected to the housing by screws. The locking member 20 is rotatably connected to the rotating shaft 14, and the rotating shaft 14 can be connected to the locking member 20 by a bearing. A locking mechanism 30 for cooperating with the locking member 20 is movably connected to the rotating shaft 14;

[0047] The locking mechanism 30 includes a rack 31, a rotating member 32, a push rod 33 and a second locking member 34. The rack 31 is movably connected to the housing. One end of the rack 31 is located outside the housing, and the other end cooperates with the teeth set on the rotating member 32. The rotating member 32 is axially fixed and circumferentially rotated. The push rod 33 is connected to the rotating member 32 through a thread. The push rod 33 is used to push the second locking member 34. The push rod 33 is in contact with the second locking member 34, but not connected. The second locking member 34 is movably connected to the rotating shaft 14, and the second locking member 34 can only move along the axial direction of the rotating shaft 14.

[0048] The rack 31 controls the second locking member 34 to cooperate with the first locking member 20 to achieve self-locking.

[0049] Working principle: the rack 31 is pushed, and the rack 31 drives the rotating member 32 to rotate. Because the rotating member 32 is axially fixed, the push rod 33 rotates and extends in the rotating member 32 to push the locking member 2 34 to move axially along the rotating shaft 14. When the locking member 2 34 reaches the limit position, it cooperates with the locking member 1 20 to lock, so that the rotating handle 10 can achieve self-locking.

[0050] Example 2

[0051] On the basis of Embodiment 1, preferably, the locking member 1 20 and the locking member 2 34 are meshed through a tooth structure.

[0052] Preferably, the locking member 1 20 and the locking member 2 34 are both geared disc structures.

[0053] The gear teeth mesh with each other and have a larger contact surface, which can achieve a better locking effect.

[0054] The cooperation mode of the locking member 20 and the locking member 2 34 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 34 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 34 is adapted to the groove, and the locking member 2 34 falls into the groove, which can also achieve the purpose of the present invention.

[0055] Example 3

[0056] On the basis of Example 1 or 2, preferably, a connecting block 341 is provided on the locking member 34 , a connecting groove 342 is provided on the connecting block 341 along the axial direction of the rotating shaft 14 , and the connecting block 341 is slidably connected to the rotating shaft 14 through the connecting groove 342 .

[0057] 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 grooves 342, and the connecting grooves 342 can move relative to the connecting shafts; in the locked state, the push rod 33 acts on the locking member 2 34, so that the locking member 2 34 cooperates with the locking member 1 20. At this time, the connecting groove 342 and the connecting shaft are relatively fixed, that is, the locking member 2 34 and the rotating shaft are relatively fixed, so the locking member 2 34 is fixed at this time, then the rotating shaft 14 is fixed, and when the rotating shaft 14 is fixed, the rotating handle 10 is fixed.

[0058] The connection groove 342 is set to enable the locking member 34 to be movably connected to the rotating shaft, but to ensure that the locking member 34 is relatively fixed to the rotating shaft 14 when locked. However, for those skilled in the art, it is not limited to this embodiment to realize that the locking member 34 only moves along the axial direction of the rotating shaft 14 and can also ensure that it is relatively fixed to the rotating shaft 14 when locked.

[0059] 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 342, and the connecting groove 342 can move relative to the connecting shaft; when in the locked state, the push rod 33 acts on the locking member 34 to fix the connecting groove 342 and the connecting shaft relatively.

[0060] The connecting blocks 341 are arranged on both sides of the rotating shaft 14, and the distance between the two connecting blocks 341 is greater than or equal to the diameter of the rotating shaft 14; the best way is that the distance is just adapted to the diameter of the rotating shaft 14, that is, the connecting block 341 can fit exactly on the rotating shaft, and the rotating shaft 14 has no effect on the movement of the connecting block 341.

[0061] During use, the push rod 33 pushes the locking member 24 to move and cooperate with the locking member 20. At this time, the end of the connecting groove 342 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 24 with the rotating shaft 14; the locking member 24 cooperates with the locking member 20 to fix the rotating handle 10, achieving the effect of self-locking of the rotating handle 10.

[0062] Example 4

[0063] On the basis of Embodiment 1, 2 or 3, preferably, a spiral groove 321 is provided in the rotating member 32 , and a spherical protrusion 331 cooperating with the spiral groove 321 is provided on the push rod 33 .

[0064] Preferably, the spherical protrusions 331 are provided in plurality, and the plurality of spherical protrusions 331 are evenly arranged on the push rod 33. The plurality of spherical protrusions 331 are all matched with the spiral groove 321 to realize the rotation extension and contraction of the push rod 33.

[0065] Example 5

[0066] Based on Embodiment 1, 2, 3 or 4, preferably, a locking piece is provided on the rack 31 .

[0067] The locking member may be a locking member in the prior art, such as a connecting member on the telescopic rod of the umbrella handle. The locking member is not necessary. In the case where there is no locking member to lock the rack 31, the connection between the rotating member 32 and the push rod 33 can achieve locking. The rotating member 32 and the push rod 33 can be locked by threaded connection or by the cooperation between the spiral groove 321 and the spherical protrusion 331.

[0068] Preferably, a handle 311 is provided on the rack 31 .

[0069] Preferably, an accommodating cavity is provided in the shell, and a rotating member 32 is provided in the accommodating cavity.

[0070] The accommodating cavity can ensure that the rotating member 32 is axially fixed, so that the rotating member 32 can only rotate in the circumferential direction.

[0071] It should be noted that the accommodating cavity is only one implementation method, and a blocking plate may be provided in front of the rotating member 32 to also achieve the desired effect.

[0072] Example 6

[0073] 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; the rotating handle 10 is rotatably connected to a locking member, and the rotating member 32 is fixedly arranged in the housing;

[0074] 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;

[0075] 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;

[0076] The locking mechanism 30 includes a rack 31, a rotating member 32, a push rod 33 and a second locking member 34. The rack 31 cooperates with the teeth arranged on the rotating member 32. The rotating member 32 is axially fixed and circumferentially rotated. The rotating member 32 is movably connected with a push rod 33. The push rod 33 is used to push the second locking member 34. The push rod 33 is in contact with the second locking member 34 but not connected. The second locking member 34 is movably connected to the rotating shaft 14. The second locking member 34 moves along the axial direction of the rotating shaft 14.

[0077] The rack 31 controls the second locking member 34 to cooperate with the first locking member 20 to achieve self-locking.

[0078] Working principle: the rack 31 is pushed, and the rack 31 drives the rotating member 32 to rotate. Because the rotating member 32 is axially fixed, the push rod 33 rotates and extends in the rotating member 32 to push the locking member 2 34 to move axially along the rotating shaft 14. When the locking member 2 34 reaches the limit position, it cooperates with the locking member 1 20 to lock, so that the rotating handle 10 can achieve self-locking.

[0079] Preferably, the locking member 1 20 and the locking member 2 34 are engaged with each other through a tooth structure.

[0080] Preferably, the locking member 1 20 and the locking member 2 34 are both geared disc structures.

[0081] Preferably, a connecting block 341 is provided on the second locking member 34 , and a connecting groove 342 is provided on the connecting block 341 along the axial direction of the rotating shaft 14 , and the connecting block 341 is slidably connected to the rotating shaft 14 through the connecting groove 342 .

[0082] 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 342, and the connecting groove 342 can move relative to the connecting shaft; when in the locked state, the push rod 33 acts on the locking member 34 to fix the connecting groove 342 and the connecting shaft relatively.

[0083] Preferably, a spiral groove 321 is provided in the rotating member 32 , and a spherical protrusion 331 matching with the spiral groove 321 is provided on the push rod 33 .

[0084] Preferably, the spherical protrusions 331 are provided in plurality, and the plurality of spherical protrusions 331 are evenly arranged on the push rod 33. The plurality of spherical protrusions 331 are all matched with the spiral groove to realize the rotation extension and contraction of the push rod 33.

[0085] Preferably, a locking piece is provided on the rack 31 .

[0086] The locking piece may be a locking piece in the prior art, such as a connecting piece on the telescopic rod of the umbrella handle.

[0087] Preferably, a handle 311 is provided on the rack 31 .

[0088] Preferably, an accommodating cavity is provided in the shell, and a rotating member 32 is provided in the accommodating cavity.

[0089] Example 7

[0090] An endoscope comprises a housing and a rotating handle 10, wherein the rotating handle 10 is connected to the housing and rotates relative to the housing; the rotating handle 10 is rotatably connected to a locking member, and the rotating member 32 is fixedly disposed in the housing;

[0091] 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;

[0092] 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;

[0093] The locking mechanism 30 includes a rack 31, a rotating member 32, a push rod 33 and a second locking member 34. The rack 31 cooperates with the teeth arranged on the rotating member 32. The rotating member 32 is axially fixed and circumferentially rotated. The rotating member 32 is movably connected with a push rod 33. The push rod 33 is used to push the second locking member 34. The push rod 33 is in contact with the second locking member 34 but not connected. The second locking member 34 is movably connected to the rotating shaft 14. The second locking member 34 moves along the axial direction of the rotating shaft 14.

[0094] The rack 31 controls the second locking member 34 to cooperate with the first locking member 20 to achieve self-locking.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

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 rotating shaft (14) passes through the housing and is fixedly connected to the left bracket (12) and the right bracket (13) respectively; 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 rack (31), a rotating member (32), a push rod (33) and a second locking member (34); the rack (31) is movably connected to the housing; the rack (31) cooperates with teeth arranged on the rotating member (32); the rotating member (32) is axially fixed and circumferentially rotatable; the rotating member (32) is threadedly connected with a push rod (33); the push rod (33) is used to push the second locking member (34); the second locking member (34) is movably connected to the rotating shaft (14); the second locking member (34) can only move axially along the rotating shaft (14); a spiral groove (321) is arranged in the rotating member (32); and a spherical protrusion (331) cooperating with the spiral groove (321) is arranged on the push rod (33); The rack (31) controls the second locking member (34) to cooperate with the first locking member (20) to achieve self-locking.

2. An endoscope self-locking device as claimed in claim 1, characterized in that: The locking member 1 (20) and the locking member 2 (34) are meshed with each other through a tooth 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 (34) are both toothed disc structures.

4. The endoscope self-locking device according to claim 1, characterized in that: The second locking member (34) is provided with a connecting block (341), and a connecting groove (342) is provided on the connecting block (341) along the axial direction of the rotating shaft (14). The connecting block (341) is slidably connected to the rotating shaft (14) through the connecting groove (342).

5. The endoscope self-locking device according to claim 1, characterized in that: A plurality of the spherical protrusions (331) are provided, and the plurality of spherical protrusions (331) are evenly arranged on the push rod (33).

6. The endoscope self-locking device according to claim 1, characterized in that: A locking piece is provided on the rack (31).

7. An endoscope self-locking device as claimed in claim 1 or 6, characterized in that: The rack (31) is provided with a handle (311).

8. The endoscope self-locking device according to claim 1, characterized in that: An accommodating cavity is arranged in the shell, and a rotating member (32) is arranged in the accommodating cavity.

9. An endoscope, characterized in that: Includes the self-locking device described in any one of 1-8.

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