Hand wheel locking structure and endoscope

Abstract

The utility model provides a hand wheel locking structure and an endoscope, and belongs to the technical field of endoscopes, the hand wheel locking structure comprises a base provided with a first fixing cavity and a second fixing cavity; the first rotating rod is rotatably connected with the base, one end of the first rotating rod is provided with a first fixing part, and the other end of the first rotating rod is provided with a first hand wheel; the second rotating rod is rotatably connected with the base, one end of the second rotating rod is provided with a second fixing part, and the other end of the second rotating rod is provided with a second hand wheel; and the locking assembly is connected with the base. The locking device has the advantages that the first hand wheel can be pushed through the locking assembly so that the first fixing part can be connected to the end face of the first fixing cavity in a pressed mode, or the second hand wheel can be pushed so that the second fixing part can be connected to the end face of the second fixing cavity in a pressed mode, the two rotating rods are locked through locking of the two hand wheels, and the locking device is very convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of endoscopes, and relates to a handwheel locking structure and an endoscope. Background Art

[0002] Endoscopes are widely used in the field of medical diagnosis. An endoscope includes a handwheel, an insertion tube whose bending degree is controlled by the rotation of the handwheel, and a handwheel locking mechanism. During use, in order to facilitate the operator to fix the angle of the bending part of the insertion tube and facilitate other operations such as taking pictures and treating lesions, a bending locking structure is required to fix the bending part at a specific angle.

[0003] In some existing technical solutions, there are two types: single handwheel and double handwheels. There is already a corresponding handwheel locking structure for the single handwheel technical solution, but it is difficult to adopt the single handwheel locking structure for the double handwheel technical solution, so there is a large room for improvement. Summary of the Invention

[0004] The purpose of the utility model is to provide a handwheel locking structure and an endoscope for the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A handwheel locking structure, comprising:

[0006] A base provided with a first fixing cavity and a second fixing cavity;

[0007] A first rotating rod rotatably connected to the base, one end of the first rotating rod is provided with a first fixing portion, the other end of the first rotating rod is provided with a first handwheel, and the first fixing portion is arranged in the first fixing cavity;

[0008] A second rotating rod rotatably connected to the base, one end of the second rotating rod is provided with a second fixing portion, the other end of the second rotating rod is provided with a second handwheel, and the second fixing portion is arranged in the second fixing cavity;

[0009] A locking assembly connected to the base, and the locking assembly can press the first handwheel against the end face of the first fixing cavity, or press the second handwheel against the end face of the second fixing cavity.

[0010] In the above handwheel locking structure, the locking assembly includes a first driving seat rotatably connected to the base. The base is further provided with a first inclined surface, and the first driving seat is provided with a second inclined surface. The first driving seat contacts the first inclined surface of the base through the second inclined surface, and when the first driving seat rotates relative to the base, it approaches or moves away from the first handwheel.

[0011] In the above-mentioned handwheel locking structure, the locking assembly further includes a first linkage seat and a first seal. The first linkage seat is located between the first handwheel and the first driving seat. The first seal is located between the first driving seat and the first linkage seat. The first linkage seat contacts the first driving seat through the first seal.

[0012] In the above-mentioned handwheel locking structure, the first driving seat is provided with a first extension rod, and the base is further provided with a first limiting groove. The first extension rod passes through the first limiting groove. When the first driving seat rotates, it drives the first extension rod to rotate and can contact the side of the first limiting groove.

[0013] In the above-mentioned handwheel locking structure, the locking assembly includes a second driving seat. The second driving seat is rotatably connected to the base. The base is further provided with a third inclined surface, and the second driving seat is provided with a fourth inclined surface. The second driving seat contacts the third inclined surface of the base through the fourth inclined surface. When the second driving seat rotates relative to the base, it approaches or moves away from the second handwheel.

[0014] In the above-mentioned handwheel locking structure, the locking assembly further includes a second linkage seat and a second seal. The second linkage seat is located between the second handwheel and the second driving seat. The second seal is located between the second linkage seat and the second handwheel. The second linkage seat contacts the second handwheel through the second seal.

[0015] In the above-mentioned handwheel locking structure, the base is further provided with a fixing rod and a fixing head. The fixing head is connected to the base through the fixing rod, and the third inclined surface is arranged on the fixing head.

[0016] In the above-mentioned handwheel locking structure, the second driving seat is provided with a second limiting groove, and the fixing head is provided with a limiting protrusion. The limiting protrusion is inserted into the second limiting groove. When the second driving seat rotates, it drives the second limiting groove to rotate and can contact the side of the limiting protrusion.

[0017] In the above-mentioned handwheel locking structure, a knob is further included. The knob is detachably connected to the second driving seat, and the knob covers the second driving seat and the fixing head.

[0018] Secondly, an endoscope includes the above-mentioned handwheel locking structure and further includes: an insertion tube. The first fixing part and the second fixing part are respectively connected to the insertion tube through control lines and can control the insertion tube.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. The first handwheel can be pushed by the locking component to press the first fixing part against the end face of the first fixing cavity, or the second handwheel can be pushed to press the second fixing part against the end face of the second fixing cavity. The locking of the two handwheels realizes the locking of the two rotating rods, which is very convenient.

[0021] 2. The first driving seat realizes approaching or moving away from the first handwheel when it rotates relative to the base through the contact between the second inclined surface and the first inclined surface, and when the first driving seat contacts the first handwheel, the first fixing part can be driven by the first rotating rod to be pressed against the end face of the first fixing cavity.

[0022] 3. The first linkage seat contacts the first seal, the first seal contacts the first driving seat, and contacts the first handwheel through the first linkage seat. When the first linkage seat contacts the first handwheel, the first seal is squeezed, realizing the elastic clamping of the first handwheel. At the same time, the presence of the first linkage seat can prevent the rotation of the first driving seat from affecting the first handwheel.

[0023] 4. The first driving seat can be rotated by controlling the first extension rod. The first extension rod can contact the side of the first limiting groove to limit the maximum rotation range of the first extension rod.

[0024] 5. The second driving seat realizes approaching or moving away from the second handwheel when it rotates relative to the base through the contact between the fourth inclined surface and the third inclined surface, and when the second driving seat contacts the second handwheel, the second fixing part can be driven by the second rotating rod to be pressed against the end face of the second fixing cavity.

[0025] 6. The second linkage seat contacts the second driving seat, the second linkage seat contacts the second seal, and the second seal contacts the second handwheel. When the second linkage seat contacts the second handwheel, the second seal is squeezed, realizing the elastic clamping of the second handwheel. At the same time, the presence of the second linkage seat can prevent the rotation of the second driving seat from affecting the second handwheel.

[0026] 7. The fixing rod passes through the first rotating rod and the second rotating rod. The fixing head is connected to the base through the fixing rod, and the third inclined surface is arranged on the fixing head. Therefore, the position of the first driving seat relative to the first handwheel is opposite to the position of the second driving seat relative to the second handwheel, and the two controls can be carried out separately without affecting each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an exploded view of the handwheel locking structure of the present utility model.

[0028] Figure 2 It is an exploded view of the handwheel locking structure of the present utility model from another perspective.

[0029] Figure 3 It is a top view of the handwheel locking structure of the present utility model.

[0030] Figure 4 is Figure 3 a cross-sectional view from the A-A perspective of

[0031] Figure 5 a schematic structural view of the endoscope of the present utility model.

[0032] In the figure, 100 is the base; 110 is the first fixing cavity; 120 is the second fixing cavity; 130 is the first inclined surface; 140 is the first limiting groove; 150 is the fixing rod; 160 is the fixing head; 161 is the third inclined surface; 162 is the limiting protrusion; 200 is the first rotating rod; 210 is the first fixing part; 220 is the first handwheel; 300 is the second rotating rod; 310 is the second fixing part; 320 is the second handwheel; 400 is the locking assembly; 410 is the first driving seat; 411 is the second inclined surface; 412 is the first extension rod; 420 is the first linkage seat; 430 is the first seal; 440 is the second driving seat; 441 is the fourth inclined surface; 450 is the second linkage seat; 451 is the second limiting groove; 460 is the second seal; 500 is the knob; 600 is the insertion tube. Specific Embodiments

[0033] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] The specific embodiments described herein are only examples to illustrate the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0039] As Figures 1 - 5 shown, a handwheel locking structure includes: a base 100, a first rotating rod 200, a second rotating rod 300, and a locking assembly 400.

[0040] Among them, the base 100 is provided with a first fixed cavity 110 and a second fixed cavity 120.

[0041] Among them, the first rotating rod 200 is rotatably connected to the base 100. One end of the first rotating rod 200 is provided with a first fixing portion 210, and the other end of the first rotating rod 200 is provided with a first handwheel 220. The first fixing portion 210 is disposed in the first fixed cavity 110.

[0042] Among them, the second rotating rod 300 is rotatably connected to the base 100. One end of the second rotating rod 300 is provided with a second fixing portion 310, and the other end of the second rotating rod 300 is provided with a second handwheel 320. The second fixing portion 310 is disposed in the second fixed cavity 120.

[0043] Among them, the locking assembly 400 is connected to the base 100. The locking assembly 400 can push the first handwheel 220 to press the first fixing portion 210 against the end face of the first fixed cavity 110, or can push the second handwheel 320 to press the second fixing portion 310 against the end face of the second fixed cavity 120.

[0044] In this embodiment, the locking assembly 400 can push the first handwheel 220 to press the first fixing portion 210 against the end face of the first fixing cavity 110, or can push the second handwheel 320 to press the second fixing portion 310 against the end face of the second fixing cavity 120. By locking the two handwheels, the locking of the two rotating rods is achieved, which is very convenient.

[0045] As Figures 1 - 5 shown, on the basis of the above embodiment, the locking assembly 400 includes a first driving seat 410. The first driving seat 410 is rotatably connected to the base 100. The base 100 is further provided with a first inclined surface 130, and the first driving seat 410 is provided with a second inclined surface 411. The first driving seat 410 contacts the first inclined surface 130 of the base 100 through the second inclined surface 411. When the first driving seat 410 rotates relative to the base 100, it approaches or moves away from the first handwheel 220.

[0046] In this embodiment, the first driving seat 410 contacts the first inclined surface 130 through the second inclined surface 411 to approach or move away from the first handwheel 220 when it rotates relative to the base 100. And when the first driving seat 410 contacts the first handwheel 220, it can drive the first fixing portion 210 to press against the end face of the first fixing cavity 110 through the first rotating rod 200.

[0047] Specifically, the base 100 is further provided with a first plane (not shown in the figure) and a second plane (not shown in the figure). The first inclined surface 130 is located between the first plane and the second plane. When the first driving seat 410 is located on the first plane, it remains in a state of being away from the first handwheel 220, and when the first driving seat 410 is located on the second plane, it remains in a state of being close to the first handwheel 220.

[0048] As Figures 1 - 5 shown, on the basis of the above embodiment, the locking assembly 400 further includes a first linkage seat 420 and a first seal 430. The first linkage seat 420 is located between the first handwheel 220 and the first driving seat 410. The first seal 430 is located between the first driving seat 410 and the first linkage seat 420. The first linkage seat 420 contacts the first seal 430, and the first seal 430 contacts the first driving seat 410.

[0049] In this embodiment, the first linkage seat 420 contacts the first seal 430, the first seal 430 contacts the first drive seat 410, and contacts the first handwheel 220 through the first linkage seat 420. When the first linkage seat 420 contacts the first handwheel 220, the first seal 430 is squeezed, realizing elastic clamping of the first handwheel 220. At the same time, the presence of the first linkage seat 420 can prevent the rotation of the first drive seat 410 from affecting the first handwheel 220.

[0050] As Figures 1 - 5 shown, on the basis of the above embodiment, the first drive seat 410 is provided with a first extension rod 412, the base 100 is further provided with a first limiting groove 140, the first extension rod 412 passes through the first limiting groove 140, and when the first drive seat 410 rotates, it drives the first extension rod 412 to rotate and can contact the side of the first limiting groove 140.

[0051] In this embodiment, the first drive seat 410 can be driven to rotate by controlling the first extension rod 412, and the first extension rod 412 can contact the side of the first limiting groove 140 to limit the maximum rotation range of the first extension rod 412.

[0052] As Figures 1 - 5 shown, on the basis of the above embodiment, the locking assembly 400 includes a second drive seat 440, the second drive seat 440 is rotatably connected to the base 100, the base 100 is further provided with a third inclined surface 161, the second drive seat 440 is provided with a fourth inclined surface 441, the second drive seat 440 contacts the third inclined surface 161 of the base 100 through the fourth inclined surface 441, and when the second drive seat 440 rotates relative to the base 100, it approaches or moves away from the second handwheel 320.

[0053] In this embodiment, the second drive seat 440 contacts the third inclined surface 161 through the fourth inclined surface 441 to realize approaching or moving away from the second handwheel 320 when it rotates relative to the base 100, and when the second drive seat 440 contacts the second handwheel 320, it can drive the second fixing part 310 to press against the end surface of the second fixing cavity 120 through the second rotating rod 300.

[0054] As Figures 1 - 5 shown, on the basis of the above embodiment, the locking assembly 400 further includes a second linkage seat 450 and a second seal 460. The second linkage seat 450 is located between the second handwheel 320 and the second drive seat 440, the second seal 460 is located between the second linkage seat 450 and the second handwheel 320, the second linkage seat 450 contacts the second seal 460, and the second seal 460 contacts the second handwheel 320.

[0055] In this embodiment, the second linkage seat 450 contacts the second drive seat 440, the second linkage seat 450 contacts the second seal 460, and the second seal 460 contacts the second handwheel 320. When the second linkage seat 450 contacts the second handwheel 320, the second seal 460 is squeezed, achieving elastic clamping of the second handwheel 320. At the same time, the presence of the second linkage seat 450 can prevent the rotation of the second drive seat 440 from affecting the second handwheel 320.

[0056] As Figures 1 - 5 shown, on the basis of the above embodiment, the base 100 is further provided with a fixing rod 150 and a fixing head 160. The fixing head 160 is connected to the base 100 through the fixing rod 150, and the third inclined surface 161 is disposed on the fixing head 160.

[0057] In this embodiment, the fixing rod 150 passes through the first rotating rod 200 and the second rotating rod 300. The fixing head 160 is connected to the base 100 through the fixing rod 150, and the third inclined surface 161 is disposed on the fixing head 160. Therefore, the position of the first drive seat 410 relative to the first handwheel 220 is opposite to the position of the second drive seat 440 relative to the second handwheel 320, and the two controls can be carried out separately without affecting each other.

[0058] Specifically, the fixing head 160 is further provided with a third plane (not shown in the figure) and a fourth plane (not shown in the figure). The third inclined surface 161 is located between the third plane and the fourth plane. When the second drive seat 440 is located on the third plane, it remains in a state away from the second handwheel 320, and when the second drive seat 440 is located on the fourth plane, it remains in a state close to the second handwheel 320.

[0059] As Figures 1 - 5 shown, on the basis of the above embodiment, the second drive seat 440 is provided with a second limiting groove 442, and the fixing head 160 is provided with a limiting protrusion 162. The limiting protrusion 162 is inserted into the second limiting groove 442. When the second drive seat 440 rotates, it drives the second limiting groove 442 to rotate and can contact the side portion of the limiting protrusion 162.

[0060] In this embodiment, the second limiting groove 442 can contact the side portion of the limiting protrusion 162 to limit the maximum rotation range of the second drive seat 440.

[0061] As Figures 1 - 5 shown, on the basis of the above embodiment, a knob 500 is further included, and the knob 500 is detachably connected to the second drive seat 440.

[0062] Specifically, the knob 500 can cover the second drive seat 440 and the fixing head 160.

[0063] In this embodiment, the rotation of the second drive seat 440 can be driven by controlling the knob 500, and at the same time, the knob 500 covering the second drive seat 440 and the fixing head 160 can play a role in shielding and protection.

[0064] As Figures 1 - 5 shown, an endoscope includes the handwheel locking structure described above, and further includes: an insertion tube 600, wherein the first fixing portion 210 and the second fixing portion 310 are respectively connected to the insertion tube 600 through control lines and can control the insertion tube 600.

Claims

1. A hand wheel locking structure, characterized in that: include: A base, which is provided with a first fixing cavity and a second fixing cavity; a first rotating rod, which is rotatably connected to the base, a first fixing portion is disposed at one end of the first rotating rod, a first hand wheel is disposed at the other end of the first rotating rod, and the first fixing portion is disposed in the first fixing cavity; a second rotating rod, which is rotatably connected to the base, a second fixing portion is disposed at one end of the second rotating rod, a second hand wheel is disposed at the other end of the second rotating rod, and the second fixing portion is disposed in the second fixing cavity; A locking assembly is connected to the base, and the locking assembly can push the first hand wheel to press the first fixing part against the end surface of the first fixing cavity, or can push the second hand wheel to press the second fixing part against the end surface of the second fixing cavity.

2. A hand wheel locking structure according to claim 1, characterized in that: The locking assembly includes a first drive seat, which is rotatably connected to the base. The base is also provided with a first inclined surface, and the first drive seat is provided with a second inclined surface. The first drive seat contacts the first inclined surface of the base through the second inclined surface, and the first drive seat approaches or moves away from the first hand wheel when rotating relative to the base.

3. A hand wheel locking structure as claimed in claim 2, characterized in that: The locking assembly also includes a first linkage seat and a first seal, the first linkage seat is located between the first hand wheel and the first drive seat, the first seal is located between the first drive seat and the first linkage seat, the first linkage seat is in contact with the first seal, and the first seal is in contact with the first drive seat.

4. A hand wheel locking structure as claimed in claim 2, characterized in that: The first driving seat is provided with a first extension rod, and the base is also provided with a first limiting groove. The first extension rod passes through the first limiting groove. When the first driving seat rotates, the first extension rod is driven to rotate and can contact the side of the first limiting groove.

5. A hand wheel locking structure according to claim 1, characterized in that: The locking assembly includes a second drive seat, which is rotatably connected to the base. The base is also provided with a third inclined surface, and the second drive seat is provided with a fourth inclined surface. The second drive seat contacts the third inclined surface of the base through the fourth inclined surface, and the second drive seat approaches or moves away from the second hand wheel when rotating relative to the base.

6. A hand wheel locking structure according to claim 5, characterized in that: The locking assembly also includes a second linkage seat and a second seal, the second linkage seat is located between the second hand wheel and the second drive seat, the second seal is located between the second linkage seat and the second hand wheel, the second linkage seat contacts the second seal, and the second seal contacts the second hand wheel.

7. A hand wheel locking structure according to claim 6, characterized in that: The base is further provided with a fixing rod and a fixing head, the fixing head is connected to the base through the fixing rod, and the third inclined surface is provided on the fixing head.

8. A hand wheel locking structure according to claim 7, characterized in that: The second driving seat is provided with a second limiting groove, and the fixing head is provided with a limiting protrusion, which is inserted into the second limiting groove. When the second driving seat rotates, the second limiting groove is driven to rotate and can contact the side of the limiting protrusion.

9. A hand wheel locking structure according to claim 8, characterized in that: It also includes a knob, which is detachably connected to the second driving seat.

10. An endoscope, characterized in that: It comprises a handwheel locking structure as described in any one of claims 1 to 9, and further comprises: an insertion tube, wherein the first fixing part and the second fixing part are respectively connected to the insertion tube through control lines and can control the insertion tube.

Images