Instrument cassette locking mechanism

Abstract

The utility model relates to medical instrument box technical field especially is instrument box locking mechanism, instrument box includes box body and box cover, locking mechanism includes lock catch and abutting part, lock catch sets up on the box cover, has the strip -shaped groove of can accommodate lock catch on the box cover, has the locking groove of lock catch slip -off on the box body, abutting part sets up in the locking groove, when lock catch moves to with abutting part in the locking groove and then realizes locking after the box cover closes, lock catch includes fixed connection's push button and slide seat, the upper width of push button is greater than the width of strip -shaped groove, the lower width of slide seat is greater than the width of locking groove, the bottom of locking groove still has the limiting slot of communication with it, the lower part of slide seat is located in the limiting slot. The instrument box locking mechanism cooperates through riveting the lock catch on the box cover and the ball head plunger in the box body, realizes locking through the ball head and lock catch, simple structure, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device box technology, and in particular to a device box locking mechanism. Background Technology

[0002] Medical device cases typically consist of a body and a lid, used for storing and transporting surgical instruments. Traditional locking mechanisms often employ snap-on or knob-type structures. For example, Chinese patent ZL200720040059.9 discloses a mechanism for locking the lid and body of a medical device case, which includes a lid, a knob, a spring plate, and a latching plate. Locking is achieved by rotating the knob, which engages the latching plate with a slot in the body. However, this structure has the following drawbacks: it is complex, has many parts, and is inconvenient to assemble. Operation requires rotating the knob, which may be inconvenient in a surgical environment due to misoperation or space constraints. The durability of traditional locking mechanisms is also questionable; frequent use can easily lead to loosening of the knob or wear of the latching plate, affecting the locking effect. Due to the limitations of its structural design, dirt or bacteria can easily accumulate between small parts during cleaning and sterilization, increasing cleaning difficulty and failing to meet the stringent hygiene standards of modern medical environments. Furthermore, this locking method cannot be quickly opened or closed in emergencies, potentially delaying the retrieval of surgical instruments, reducing work efficiency, and even posing potential risks. Therefore, there is an urgent need for a simpler, more reliable, and easier-to-maintain instrument box locking mechanism to solve the above problems. Utility Model Content

[0003] To address the problem that existing locking mechanisms are complex and cannot be opened or closed quickly, this invention provides an instrument box locking mechanism. The mechanism uses a latch riveted to the box lid to engage with a ball plunger inside the box. The ball plunger abuts against the latch to achieve locking. The mechanism is simple in structure and easy to operate.

[0004] This utility model provides a locking mechanism for an instrument case. The instrument case includes a case body and a lid. The locking mechanism includes a latch and a retaining member. The latch is disposed on the lid, which has a slot for accommodating the latch. The case body has a locking groove for the latch to slide in, and the retaining member is disposed within the locking groove. When the lid is closed, the latch moves within the locking groove and abuts against the retaining member, thus locking the case. Pushing the latch to slide within the locking groove, the contact or disengagement of the latch with the retaining member completes the locking or unlocking of the lid.

[0005] Furthermore, the latch includes a push button and a slide connected together. The upper width of the push button is greater than the width of the strip groove, and the lower width of the slide is greater than the width of the locking groove. The width setting allows the push button to disengage from the strip groove, and the top of the push button is designed with anti-slip textures to facilitate easy application of force by the operator.

[0006] Furthermore, a limiting groove communicating with the bottom of the locking groove is provided, and the lower part of the slide is placed in the limiting groove. The lower part of the slide is locked in the limiting groove, which can improve the locking effect and prevent the slide from coming out of the locking groove.

[0007] Furthermore, the bottom of the push button has a raised edge with a flange, and the slide has a groove that matches the raised edge. The push button and the slide are fixed together by riveting the raised edge and the groove. The flanged riveting enhances the stability of the connection between the push button and the slide, preventing loosening during use.

[0008] Furthermore, the clamping element is a ball-head plunger, which has an elastic ball head. The bottom of the slide has a locking hole that matches the elastic ball head. The ball head is positioned inside the ball-head plunger by a spring. When the slide moves to contact the ball head, the elastic ball head is compressed and contracts inward. The slide continues to slide. When it moves to be opposite the locking hole at the bottom of the slide, the elastic ball head extends under the action of the spring and engages in the locking hole, thereby achieving locking.

[0009] Furthermore, the strip groove is a square groove, and the contact surface between the push button and the strip groove is set to a plane. The side plane of the push button mates with the square groove to prevent the push button from rotating during movement.

[0010] Furthermore, the box has an opening on one side and a positioning groove along its upper edge, allowing the lid to extend into the opening and be placed within the positioning groove. A corresponding notch is provided on the locking groove for the latch on the lid to extend into. The positioning groove ensures a stable and convenient lid fit.

[0011] Furthermore, the box contains several placement slots, and each of the placement slots, locking slots, and lid has a sterilization hole. These sterilization holes create good ventilation and sterilization channels, ensuring the box remains dry and hygienic.

[0012] The beneficial effects of this utility model are as follows: This utility model provides an instrument box locking mechanism. By riveting and fixing inside the lock, the appearance is not affected. The lock is slidably set in the locking groove and the ball plunger is fixed in the locking groove. The box can be locked or unlocked by sliding. The structure is simple and easy to operate. The overall structure adopts an embedded design, which can meet the requirements of high appearance for instrument boxes. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is an assembly diagram of the instrument box; Figure 2 This is an assembled sectional view of the instrument box; Figure 3 yes Figure 2 Enlarged view of point D in the image; Figure 4 This is a first-angle disassembly view of the instrument box; Figure 5 This is a second-angle disassembly view of the instrument box; Figure 6 This is the assembly diagram for the latch; Figure 7 This is a cross-sectional view of the latch; Figure 8 This is a schematic diagram showing the engagement of the locking mechanism and the ball-head plunger; Figure 9 yes Figure 8 A sectional view; Figure 10 yes Figure 8 Disassembly diagram; Figure 11 This is a diagram illustrating the riveting of the latch; Figure 12 This is a schematic diagram of the upper die of the riveting machine; In the diagram: 1. Box body, 11. Locking groove, 12. Limiting groove, 13. Positioning groove, 14. Notch, 15. Placement groove, 2. Box cover, 21. Strip groove, 3. Lock, 31. Push button, 32. Slide, 33. Protrusion, 34. Groove, 35. Locking hole, 4. Buckling part, 41. Ball head, 5. Sterilization hole, 6. Upper mold, 61. Contouring cavity, 7. Lower mold. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0015] To achieve a simple structure, avoid blind spots in disinfection, and allow for quick opening or closing of the instrument box, a locking mechanism for the instrument box is designed, such as... Figures 1-5As shown, the instrument box includes a box body 1 and a box lid 2. The locking mechanism includes a latch 3 and a retaining member 4. The latch 3 is disposed on the box lid 2, and the box lid 2 has a strip groove 21 that can accommodate the latch 3. The box body 1 has a locking groove 11 that allows the latch 3 to slide. The retaining member 4 is disposed in the locking groove 11. When the box lid 2 is closed, the latch 3 moves within the locking groove 11 until it abuts against the retaining member 4, thus locking the device. The size of the strip groove 21 allows the latch 3 to be inserted and slide. When the box lid 2 is closed, the latch 3 is moved, causing the ball head 41 of the retaining member 4 to abut against the locking hole 35 on the bottom surface of the latch 3 under the action of a spring, thus locking the device. The lock 3 can be unlocked or locked by sliding it with a finger. It has a simple structure, few parts, and is easy to manufacture and assemble. The sliding operation is intuitive and simple, without the need for complicated rotation, making it suitable for quick operation in surgical environments. The embedded design has no protruding parts, which improves safety. The ball plunger provides a stable locking force to prevent accidental opening. The lock 3 is fixed by a flanged riveting, which has good durability and is suitable for frequent use.

[0016] like Figure 6 and 7 As shown, the latch 3 includes a push button 31 and a slide 32 connected together. The upper width of the push button 31 is greater than the width of the strip groove 21, and the lower width of the slide 32 is greater than the width of the locking groove 11. This ensures that the latch 3 riveted to the cover 2 can slide along the length of the strip groove 21 without falling off.

[0017] The bottom of the locking groove 11 is also provided with a limiting groove 12 that communicates with it, and the lower part of the slide block 32 is placed in the limiting groove 12. By restricting the lower part of the wider slide block 32 to slide within the limiting groove 12, the latch 3 can be prevented from coming out of the locking groove 11.

[0018] like Figures 8-10 As shown, the push button 31 has a raised section 33 with a flange at its bottom, and the slide block 32 has a groove 34 that matches the raised section 33. The push button 31 and the slide block 32 are fixed together by riveting the raised section 33 and the groove 34. The flanged design of the raised section 33 enhances the strength of the riveting, making the connection between the push button 31 and the slide block 32 more stable and less prone to loosening. The size of the groove 34 fits closely with the raised section 33, ensuring that the two can maintain a precise relative position after riveting, avoiding displacement or deformation caused by external force.

[0019] The clamping component 4 is a ball-head plunger, which has an elastic ball head 41. The bottom of the slide 32 is provided with a locking hole 35 that matches the elastic ball head 41. The ball-head plunger is a standard part, including a housing, a spring, and a ball head 41. In the initial state, the ball head 31 protrudes into the locking groove 11. Under the pressure of the slide 32, the spring can be compressed and retracted into the housing. Vertical grooves are provided on the outer periphery of the housing. An installation hole is provided in the locking groove 11. The housing is pressed into the installation hole. The vertical groove design can ensure that the housing is stable and does not loosen in the installation hole.

[0020] like Figure 1 and 6 As shown, to prevent the push button 31 from rotating during movement, the strip groove 21 is a square groove, and the contact surface between the push button 31 and the strip groove 21 is set as a plane. The two side planes of the push button 31 cooperate with the strip groove 21 to ensure that the push button 31 moves along a predetermined trajectory.

[0021] The box body 1 has an opening on one side, and a positioning groove 13 is provided on the upper edge of the box body 1 so that the box cover 2 extends into the opening and is placed in the positioning groove 13. The locking groove 11 is also provided with a notch 14 for the lock 3 on the box cover 2 to extend into.

[0022] In actual operation, when it is necessary to close the instrument box, align the latch 3 on the lid 2 with the notch 14, then align the lid 2 with the opening of the box body 1 and push it into the positioning groove 13, so that the latch 3 on the lid 2 enters the locking groove 11. Then push the push button 31 to slide it along the strip groove 21, causing the slide 32 to move within the locking groove 11. As the slide 32 moves, its bottom will gradually approach the elastic ball head 41 of the ball plunger. When the slide 32 moves to the bottom locking hole 35 and aligns with the ball head 41, the ball head 41 extends under the action of the spring and locks into the locking hole 35, thereby locking the lid 2. To unlock, simply push the push button 31 again to make the slide 32 press the elastic ball head 41 back, and continue to slide the push button 31 until the latch 3 is completely disengaged from the clamping member 4, so that the latch 3 aligns with the notch 14, and the lid 2 can be opened. This design not only simplifies the operation process but also ensures the safety of the instrument box during transportation and storage. Because all components are embedded and have smooth surfaces without protruding parts, dirt accumulation can be effectively avoided during cleaning and disinfection, meeting the strict hygiene standards of the medical environment.

[0023] like Figure 4 As shown, the box body 1 has several placement slots 15 arranged inside, and each of the placement slots 15, locking slots 11, and box lid 2 is provided with a sterilization hole 5. This ensures air circulation between the inside of the instrument box and the external environment, while effectively blocking the intrusion of external pollutants. In actual use, the sterilization hole 5 not only improves the penetration efficiency of sterilizing gas, but also accelerates the drying process inside the instrument box, reducing the impact of a humid environment on the instruments.

[0024] like Figure 11 and 12As shown, during processing, a riveting machine is used. The upper mold 6 is a contour mold with a contour cavity 61, which fits into the push button 31. The lower mold 7 is a flat mold that fits against the bottom surface of the slide block 32. The push button 31 and the slide block 32 are placed above and below the strip groove 21, respectively, with the protrusion 33 of the push button 31 facing the groove 23 of the slide block 32. The two are riveted together using the riveting machine. The flanged design of the protrusion 33 ensures a firm connection between the push button 31 and the slide block 32, while preventing loosening due to external force. During the riveting process, the design of the contour cavity 61 effectively prevents the push button 31 from shifting, thus ensuring processing accuracy. The flat mold structure of the lower mold 7 provides stable support for the slide block 32, preventing it from tilting or deforming under force. After riveting, the overall structure of the push button 31 and the slide block 32 is compact and stable, facilitating subsequent assembly and use with the box body 1.

[0025] The above description is illustrative only and not restrictive of this utility model. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of this utility model.

Claims

1. A locking mechanism for an instrument case, the instrument case comprising a case body (1) and a case lid (2), characterized in that: The locking mechanism includes a latch (3) and a stop (4). The latch (3) is disposed on the lid (2). The lid (2) has a slot (21) for accommodating the latch (3). The box body (1) has a locking groove (11) for the latch (3) to slide. The stop (4) is disposed in the locking groove (11). After the lid (2) is closed, when the latch (3) moves in the locking groove (11) to abut against the stop (4), the locking is achieved.

2. The instrument box locking mechanism according to claim 1, characterized in that: The latch (3) includes a push button (31) and a slide (32) connected to each other. The upper width of the push button (31) is greater than the width of the strip groove (21), and the lower width of the slide (32) is greater than the width of the locking groove (11).

3. The instrument box locking mechanism according to claim 2, characterized in that: The bottom of the locking groove (11) is also provided with a limiting groove (12) that communicates with it, and the lower part of the slide (32) is placed in the limiting groove (12).

4. The instrument box locking mechanism according to claim 2, characterized in that: The push button (31) has a raised edge (33) at the bottom, and the slide (32) has a groove (34) that matches the raised edge (33). The push button (31) and the slide (32) are fixed by riveting the raised edge (33) and the groove (34).

5. The instrument box locking mechanism according to claim 2, characterized in that: The clamping member (4) is a ball-head plunger, which has an elastic ball head (41), and the bottom of the slide (32) is provided with a locking hole (35) that is adapted to the elastic ball head (41).

6. The instrument box locking mechanism according to claim 2, characterized in that: The strip groove (21) is a square groove, and the contact surface between the push button (31) and the strip groove (21) is set as a plane.

7. The instrument box locking mechanism according to claim 1, characterized in that: The box body (1) has an opening on one side, and a positioning groove (13) is provided on the upper edge of the box body (1) so that the lid (2) extends into the opening and is placed in the positioning groove (13). The locking groove (11) is also provided with a notch (14) for the latch (3) on the lid (2) to extend into.

8. The instrument box locking mechanism according to claim 1, characterized in that: The box body (1) is provided with several placement slots (15), and disinfection holes (5) are provided on the placement slots (15), locking slots (11) and box cover (2).

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