Locking mechanism

Abstract

The present invention provides a locking mechanism, which relates to the technical field of locking and fixing of optical fiber electrode wires. By sleeving a limiting member outside the lock ring body and rotating the limiting member, the pressing member is located in the adjustment groove on the limiting ring, driving the pressing member to move until the groove on the pressing member is located at the arc surface corresponding to the limiting ring. Then, by rotating the limiting member, the pressing member is outside the adjustment groove and the limiting ring extends into the groove, and the pressing member cannot move. The pressing member is in a position to press against the hose, and the locking force generated on the hose is moderate, which will not pierce the hose nor cause the optical fiber electrode wire to come out. If it is necessary to take out the optical fiber electrode wire from the hose, rotate the limiting member so that the pressing member is located in the adjustment groove, move the pressing member out of the lock ring body, and finally pull out the optical fiber electrode wire from the hose, thus alleviating the technical problems in the prior art that using a lock to lock the optical fiber electrode wire is likely to pierce the hose or the locking force is insufficient to cause the optical fiber electrode wire to come out.

Description

Technical Field

[0001] The present invention relates to the technical field of locking and fixing of optical fiber electrode wires, and in particular to a locking mechanism. Background Art

[0002] In a bioreactor, it is common to insert an optical fiber electrode wire into a cell culture solution through a hose structure for protection and cooperate with an optical fiber electrode patch located in the cell culture solution to measure data such as pH and DO. To prevent the optical fiber electrode wire from being bent and damaged, the hose structure is composed of an inner tube extending into the culture structure, an outer tube placed outside the culture structure, and a connecting member connecting the inner and outer tubes. The outer tube not only protects the optical fiber electrode wire from being overly bent but also plays a guiding role.

[0003] Since the optical fiber electrode wire is not a disposable material, it is often necessary to insert the optical fiber electrode wire into a suitable test position or remove it from its corresponding hose structure after cell culture. In actual use, to ensure the smooth insertion and removal of the optical fiber electrode wire, the inner diameter of the hose structure is larger than the outer diameter of the optical fiber electrode. This causes the inner tube to shake with the culture solution during the operation of the bioreactor, resulting in the optical fiber electrode wire falling out, thereby affecting cell culture and even causing cell culture failure in severe cases.

[0004] For example, in a wave reactor, the reaction bag is placed on a shaker, and the optical fiber electrode wire is placed at the test position at the bottom of the inner tube through the outer tube and a connecting member (double-headed bag mouth) fixed on the reaction bag; when the wave reactor swings, due to the impact of the cell culture solution in the reaction bag on the bag body, the optical fiber electrode placed in the hose structure is separated from its detection position, resulting in serious deviation of the test data. To prevent the optical fiber electrode wire from falling out of the hose structure, a locking method is often used to fix the optical fiber electrode wire on the outer tube.

[0005] However, when using the lock, due to the flexible nature of the outer tube, there is often a risk of piercing the hose, causing damage to the outer skin of the optical fiber electrode wire, or insufficient locking force resulting in the optical fiber electrode wire falling out, which may even lead to cell culture failure for users in severe cases. Summary of the Invention

[0006] The purpose of the present invention is to provide a locking mechanism to alleviate the technical problems in the prior art that using a lock to lock the optical fiber electrode wire is likely to pierce the hose or have insufficient locking force, causing the optical fiber electrode wire to fall out.

[0007] The locking mechanism provided by the present invention is used to fix an optical fiber electrode wire on a hose, and includes: a lock ring body, a limiting member sleeved on the lock ring body, and a tightening member connected to the side wall of the lock ring body;

[0008] The lock ring body is used to be sleeved on the hose;

[0009] A limiting ring is provided at the outer edge of the top of the limiting member, and a recess is provided on the outer wall of the pressing member, and the limiting ring is used to extend into the recess to limit the movement of the pressing member;

[0010] The limiting ring is provided with an adjustment groove, and the pressing member can move relative to the lock ring body through the adjustment groove to fix or release the fixing of the optical fiber electrode wire on the hose.

[0011] Furthermore,

[0012] The cross-sectional shape of the upper end of the limiting ring and the cross-sectional shape of the recess are both semi-circular arcs, and the diameter D2 of the semi-circular arc of the recess is:

[0013] D1 + h1 ≤ D2 ≤ D1 + h2;

[0014] Wherein, D1 is the diameter of the upper semi-circular arc of the limiting ring, h1 is the arc height of the arc formed by the projection of the inner notch of the recess and the inner ring when the inner notch of the recess abuts against the inner ring of the limiting ring, and h2 is the arc height of the arc formed by the projection of the outer notch of the recess onto the plane where the outer ring of the limiting ring is located and the projection of the outer ring of the limiting ring when the inner notch of the recess abuts against the inner ring of the limiting ring.

[0015] Furthermore,

[0016] A base is provided at the bottom of the lock ring body extending outward, and the limiting member is provided on the base, and the base is used to support the limiting member.

[0017] Furthermore,

[0018] A limiting convex block is provided on the outer wall of the lock ring body, and the limiting convex block and the pressing member are oppositely arranged on both sides of the lock ring body, and the limiting convex block is used to prevent the limiting member from moving along the axis direction of the lock ring body.

[0019] Furthermore,

[0020] A socket ring for sleeving the lock ring body extends inward from the inner wall of the limiting member, and a guiding groove is provided on the socket ring, and the limiting convex block can pass through the guiding groove.

[0021] Furthermore,

[0022] A bearing is sleeved outside the lock ring body, and the limiting member is rotatably connected to the bearing.

[0023] Furthermore,

[0024] A limiting boss extends outward from the outer wall of the pressing member, and the limiting boss can abut against the outer wall of the lock ring body.

[0025] Furthermore,

[0026] The end of the pressing member that passes through the side wall of the locking ring body and extends into the locking ring body is provided with an arc contact surface for abutting against the hose.

[0027] Furthermore,

[0028] A handle is provided at one end of the pressing member away from the arc contact surface.

[0029] Furthermore,

[0030] An anti-slip layer is provided on the outer wall of the limiting member.

[0031] The locking mechanism provided by the present invention, by sleeving a limiting member on the locking ring body, rotating the limiting member, making the pressing member located in the adjustment groove on the limiting ring, driving the pressing member to move until the groove on the pressing member is located at the arc surface corresponding to the limiting ring, rotating the limiting member, the pressing member is outside the adjustment groove, the limiting ring extends into the groove, the pressing member cannot move, the pressing member is in the position of pressing against the hose, and the locking force generated on the hose is appropriate, not piercing the hose and not causing the optical fiber electrode wire to come out. If it is necessary to take out the optical fiber electrode wire from the hose, rotate the limiting member so that the pressing member is located in the adjustment groove, move the pressing member out of the locking ring body, and finally pull out the optical fiber electrode wire from the hose, which alleviates the technical problems existing in the prior art that using a buckle to lock the optical fiber electrode wire is likely to pierce the hose or the locking force is insufficient and the optical fiber electrode wire comes out. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a schematic diagram of the overall structure of the locking mechanism provided by the embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the locking mechanism provided by the embodiment of the present invention from the first perspective;

[0035] Figure 3 It is a schematic diagram of the structure of the pressing member and the limiting ring in the locking mechanism provided by the embodiment of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the locking mechanism provided by the embodiment of the present invention with limiting bumps and guiding grooves;

[0037] Figure 5 This is a schematic cross-sectional structure diagram of the locking mechanism with a bearing provided by an embodiment of the present invention.

[0038] Icons: 100 - lock ring body; 110 - limit bump; 200 - limit member; 210 - limit ring; 211 - adjustment groove; 220 - socket ring; 221 - guide groove; 300 - pressing member; 310 - groove; 320 - limit boss; 330 - arc contact surface; 340 - handle; 400 - base; 500 - bearing. Detailed implementation manners

[0039] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] To prevent the optical fiber electrode wire from slipping out of the hose structure, a buckle is often used to fix the optical fiber electrode wire on the outer tube. When the user uses the buckle, due to the characteristic that the outer tube is a flexible tube, there is often a risk of piercing the flexible tube and damaging the outer skin of the optical fiber electrode wire or insufficient locking force resulting in the optical fiber electrode wire slipping out. In severe cases, it will cause the failure of the user's cell culture.

[0041] In view of this, as Figure 1 、 Figure 2 shown, the locking mechanism provided in this embodiment is used to fix the optical fiber electrode wire on the flexible tube, and includes: a lock ring body 100, a limit member 200 sleeved on the lock ring body 100, and a pressing member 300 connected to the side wall of the lock ring body 100; the lock ring body 100 is used to be sleeved on the flexible tube; a limit ring 210 is provided on the outer edge of the top of the limit member 200, and a groove 310 recessed inward is provided on the outer wall of the pressing member 300. The limit ring 210 is used to extend into the groove 310 to limit the movement of the pressing member 300; an adjustment groove 211 is provided on the limit ring 210, and the pressing member 300 can move relative to the lock ring body 100 through the adjustment groove 211 to fix or release the fixing of the optical fiber electrode wire on the flexible tube.

[0042] Specifically, during the installation process, the limiting member 200 is rotated. The limiting member 200 rotates relative to the locking ring body 100, so that the adjusting groove 211 rotates to a position where the pressing member 300 can pass through. The pressing member 300 can move freely. The pressing member 300 moves outwards, and the locking ring body 100 is sleeved on the hose. After the sleeving is completed, the pressing member 300 is driven to move towards the inside of the locking ring body 100. The pressing member 300 presses against the hose, locking and fixing the optical fiber electrode wire inside the hose. The limiting member 200 is rotated, and the adjusting groove 211 moves out of the position of the pressing member 300. The limiting ring 210 on the outer edge of the top of the limiting member 200 extends into the groove 310 on the pressing member 300. The limiting ring 210 is placed in the groove 310, and the pressing member 300 cannot move. At this time, the pressing force of the pressing member 300 is appropriate, just locking the optical fiber electrode wire without breaking the hose. The installation is completed.

[0043] When unlocking, the limiting member 200 is rotated to move the limiting ring 210 out of the groove 310. The adjusting groove 211 rotates to the position of the pressing member 300. The pressing member 300 can move freely. The pressing member 300 moves outwards to release the pressing of the pressing member 300 on the hose, and the fixation between the optical fiber electrode wire and the hose is released. By rotating the limiting member 200 and moving the pressing member 300, the fixation or release of the optical fiber electrode wire can be achieved, and the operation is more convenient.

[0044] The locking mechanism provided in this embodiment has a limiting member 200 sleeved outside the locking ring body 100. The limiting member 200 is rotated so that the pressing member 300 is located in the adjusting groove 211 on the limiting ring 210, driving the pressing member 300 to move until the groove 310 on the pressing member 300 is located at the arc surface corresponding to the limiting ring 210. The limiting member 200 is rotated, the pressing member 300 is outside the adjusting groove 211, and the limiting ring 210 extends into the groove 310. The pressing member 300 cannot move. The pressing member 300 is in a position where it presses against the hose, and the locking force generated on the hose is appropriate, not breaking the hose and not allowing the optical fiber electrode wire to come out. If the optical fiber electrode wire needs to be taken out of the hose, rotate the limiting member 200 so that the pressing member 300 is located inside the adjusting groove 211, move the pressing member 300 out of the locking ring body 100, and finally pull out the optical fiber electrode wire from the hose, alleviating the technical problems in the prior art that using a buckle to lock the optical fiber electrode wire is likely to break the hose or the locking force is insufficient and the optical fiber electrode wire comes out.

[0045] On the basis of the above embodiment, as Figure 3As shown, further, in the locking mechanism provided by the present embodiment, the cross-sectional shape of the upper end of the limiting ring 210 and the cross-sectional shape of the groove 310 are both semicircular arc shapes, and the depth dimension of the groove 310 is particularly important. The arc groove bottom of the groove 310 cooperates with the arc surface of the upper end of the limiting ring 210, so that the pressing member 300 cannot be loosened. If the depth dimension of the groove 310 is too deep, the limiting ring 210 will shake in the groove 310, affecting the locking of the pressing member 300. If the depth dimension of the groove 310 is too shallow, the locking force of the groove 310 on the limiting ring 210 will be insufficient, and the limiting ring 210 can be easily loosened. It is easy to escape from the groove 310. Preferably, the size of the groove 310 should be moderate, and the semicircular arc diameter D2 of the groove 310 is: D1+h1≤D2≤D1+h2; wherein D1 is the upper semicircular arc diameter of the limiting ring 210, h1 is the arc height of the arc formed by the projection of the inner groove and the inner ring when the inner groove of the groove 310 is against the inner ring of the limiting ring 210, and h2 is the arc height of the arc formed by the chord length of the inner groove projected to the plane where the outer ring of the limiting ring 210 is located and the projection of the outer ring of the limiting ring 210 when the inner groove of the groove 310 is against the inner ring of the limiting ring 210.

[0046] Furthermore, a base 400 is provided at the bottom of the locking ring body 100 and extends outwardly. The limiting member 200 is provided on the base 400 . The base 400 is used to support the limiting member 200 .

[0047] Specifically, a base 400 is provided at the bottom of the locking ring body 100 , and the base 400 is extended along the bottom outer edge of the locking ring body 100 . The circular ring size of the base 400 is larger than the circular ring size of the limiting member 200 , so that the base 400 can support the limiting member 200 .

[0048] In addition, as an optional embodiment, the base 400 has a snap-fit ​​edge extending upward in the vertical direction, and the snap-fit ​​edge is arranged along the outer arc of the limiting member 200, so that the snap-fit ​​edge can be sleeved on the outer edge of the limiting member 200 to wrap the limiting member 200.

[0049] Furthermore, a limiting protrusion 110 is provided on the outer wall of the locking ring body 100 , and the limiting protrusion 110 and the pressing member 300 are arranged on both sides of the locking ring body 100 opposite to each other, and the limiting protrusion 110 is used to prevent the limiting member 200 from moving along the axial direction of the locking ring body 100 .

[0050] Specifically, due to the action of the gravity of the pressing member 300 on the lock ring body 100 itself, the lock ring body 100 has a tendency to tilt towards the pressing member 300. In view of this, the limiting bump 110 is arranged on the outer wall of the lock ring body 100, and the position of the limiting bump 110 is arranged opposite to that of the pressing member 300. The gravity of the limiting bump 110 itself acts on the lock ring body 100, and the gravity of the limiting bump 110 itself is used to balance the acting force of the pressing member 300 on the lock ring body 100, ensuring that the lock ring body 100 does not tilt during use.

[0051] As Figure 4 shown, further, as an alternative implementation, a socket ring 220 for sleeving the lock ring body 100 extends inwards from the inner wall of the limiting member 200, and a guiding groove 221 is arranged on the socket ring 220, and the limiting bump 110 can pass through the guiding groove 221.

[0052] Specifically, during use, the position of the limiting bump 110 is higher than the socket ring 220 on the limiting member 200, and the limiting protrusion can press the socket ring 220 to prevent the limiting member 200 from coming off the lock ring body 100 during use. In order to enable the limiting member 200 to be detached from the lock ring body 100, a guiding groove 221 is arranged on the socket ring 220 of the limiting member 200. When it is necessary to detach the limiting member 200 from the lock ring body 100, rotate the limiting member 200 to make the guiding groove 221 turn to the position of the limiting bump 110, and the limiting member 200 moves upwards, and the limiting bump 110 passes through the guiding groove 221, then the limiting member 200 can be detached from the lock ring body 100.

[0053] As Figure 5 shown, further, as an alternative implementation, a bearing 500 is sleeved outside the lock ring body 100, and the limiting member 200 is rotatably connected to the bearing 500.

[0054] Specifically, a bearing 500 is arranged between the lock ring body 100 and the limiting member 200. The bearing 500 can not only prevent the lock ring body 100 and the limiting member 200 from loosening, but also facilitate the user to rotate. It should be noted that the setting of the bearing 500 can replace the setting of the guiding groove 221 and the limiting bump 110, and there is no need to set the bearing 500 and the limiting protrusion at the same time.

[0055] Further, a limiting boss 320 extends outwards from the outer wall of the pressing member 300, and the limiting boss 320 can abut against the outer wall of the lock ring body 100.

[0056] Specifically, the tightening member 300 can be set as a tightening bolt. A threaded hole is provided on the side wall of the locking ring body 100, and the tightening bolt is threadedly connected to the threaded hole. By rotating the tightening bolt, the tightening bolt can be moved.

[0057] The diameter of the limiting boss 320 is larger than the diameter of the bolt hole. During the process of the tightening member 300 extending in, the limiting boss 320 can abut against the outer wall of the locking ring body 100. At this time, the tightening bolt cannot be further tightened, effectively preventing the tightening member 300 from extending excessively and causing the tightening member 300 to pierce the hose.

[0058] Furthermore, an arc contact surface 330 is provided at the end of the tightening member 300 that passes through the side wall of the locking ring body 100 and extends into the locking ring body 100. The arc contact surface 330 is used to abut against the hose.

[0059] Specifically, the end of the tightening member 300 is arc-shaped to form the arc contact surface 330. The arc contact surface 330 is more rounded, effectively avoiding piercing the hose by the tightening member 300.

[0060] To facilitate the rotation and screwing of the tightening member 300, further, a handle 340 is provided at one end of the tightening member 300 away from the arc contact surface 330. The operator uses the handle 340 to drive the tightening member 300 to rotate along its own axis direction.

[0061] To increase the surface friction of the limiting member 200 and facilitate the rotation of the limiting member 200, further, an anti-slip layer is provided on the outer wall of the limiting member 200. The anti-slip layer can be set as a plurality of protruding structures or can be set as a frosted layer.

[0062] The locking mechanism provided in this embodiment can effectively prevent the situation that the user pierces the hose, resulting in damage to the outer skin of the optical fiber electrode wire, and insufficient locking force leading to the detachment of the optical fiber electrode wire.

[0063] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locking mechanism for fixing an optical fiber electrode wire to a hose, characterized in that, Comprising: A lock ring body (100), a limiting member (200) sleeved on the lock ring body (100), and a pressing member (300) connected to the side wall of the lock ring body (100); The pressing member (300) is arranged to be cylindrical; The pressing member (300) is arranged as a pressing bolt, a threaded hole is formed in the side wall of the lock ring body (100), and the pressing bolt is in threaded connection with the threaded hole; the lock ring body (100) is used for being sleeved on the hose; A limiting ring (210) is arranged on the outer edge of the top of the limiting member (200), a groove (310) recessed inward is arranged on the outer wall of the pressing member (300), and the limiting ring (210) is used for extending into the groove (310) to limit the movement of the pressing member (300); An adjusting groove (211) is arranged on the limiting ring (210), and the pressing member (300) can move relative to the lock ring body (100) through the adjusting groove (211) to fix or release the fixing of the optical fiber electrode wire on the hose.

2. The locking mechanism according to claim 1, wherein A base (400) extends outward from the bottom of the lock ring body (100), the limiting member (200) is arranged on the base (400), and the base (400) is used for supporting the limiting member (200).

3. The locking mechanism according to claim 2, wherein A limiting convex block (110) is arranged on the outer wall of the lock ring body (100), and the limiting convex block (110) and the pressing member (300) are oppositely arranged on both sides of the lock ring body (100), and the limiting convex block (110) is used for preventing the limiting member (200) from moving along the axial direction of the lock ring body (100).

4. The locking mechanism according to claim 3, wherein A socket ring (220) for sleeving the lock ring body (100) extends inward from the inner wall of the limiting member (200), a guiding groove (221) is arranged on the socket ring (220), and the limiting convex block (110) can pass through the guiding groove (221).

5. The locking mechanism according to claim 1, wherein A bearing (500) is sleeved on the lock ring body (100), and the limiting member (200) is rotatably connected with the bearing (500).

6. The locking mechanism according to claim 1, wherein A limiting boss (320) extends outward from the outer wall of the pressing member (300), and the limiting boss (320) can be abutted against the outer wall of the lock ring body (100).

7. The locking mechanism according to claim 6, wherein An arc contact surface (330) is arranged at the end of the pressing member (300) passing through the side wall of the lock ring body (100) and extending into the lock ring body (100), and the arc contact surface (330) is used for abutting against the hose.

8. The locking mechanism according to claim 7, wherein One end of the pressing member (300) away from the arc contact surface (330) is provided with a handle (340).

9. The locking mechanism according to any one of claims 1-8, characterized in that The outer wall of the limiting member (200) is provided with an anti-slip layer.

Images