Linkage lock mechanism and working vehicle

By using a linkage locking mechanism to enable simultaneous operation of multiple drawers, the problem of increased workload and inability to quickly access medicines in emergencies caused by traditional locking methods is solved. This allows for rapid unlocking and locking of drawers, ensuring medicine safety and emergency response.

CN224032379UActive Publication Date: 2026-03-24CHANG GUNG MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In nursing care, the traditional method of locking individual drawers increases workload and makes it difficult to quickly obtain medications in emergencies, thus delaying patients' treatment.

Method used

The system employs a linkage lock mechanism, which, through the cooperation of the linkage lock and the linkage rod, enables the synchronous operation of multiple drawers. When the linkage lock moves toward or away from the linkage rod, all drawers are simultaneously unlocked or locked. Combined with the design of the abutment and mating parts, the vertical movement of the linkage rod is precisely controlled.

Benefits of technology

It enables simultaneous operation of multiple drawers, ensuring drug safety and enabling rapid response in emergencies to provide timely nursing care to patients.

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Abstract

The utility model relates to the technical field of medical instruments, and provides a linkage lock mechanism which comprises a linkage structure, a linkage rod and a drawer, the linkage structure comprises a linkage lock, and the linkage lock moves in the direction close to or away from the linkage rod; the linkage rod is provided with a plurality of locking pieces in the length direction, the locking pieces are in one-to-one correspondence with the drawers, and the drawers are provided with locking grooves matched with the locking pieces; when the linkage lock moves in the direction close to the linkage rod, the linkage rod is driven to move in the vertical upward direction, and the locking piece is separated from the locking groove. When the linkage lock moves in the direction away from the linkage rod, the linkage rod is driven to move in the vertical downward direction, and the locking piece is inserted into the locking groove. On the basis, the safety of the medicine can be guaranteed, quick response can be achieved under the emergency situation, and timely nursing service is provided for the patient. In addition, the utility model further provides a working vehicle.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a linkage lock mechanism and a work cart. Background Technology

[0002] In hospital nursing care, nurses typically use work carts to carry medications, instruments, and other supplies for use in different wards or with different patients. These carts are usually equipped with multiple drawers for storing medications, syringes, dressings, and other medical supplies in a categorized manner. While this design facilitates the classification and management of items, it also presents some challenges.

[0003] In nursing care, the safe management of medications is of paramount importance. To prevent medication misuse or abuse, nurses need to lock the drawers of the medication cart after verifying the medication list to ensure medication safety. However, due to the large number of drawers on the cart, if the traditional method of locking each drawer individually is used, nurses need to lock each drawer one by one. This not only increases workload but may also lead to difficulties in quickly accessing medications in emergencies, thus delaying the patient's treatment.

[0004] Therefore, this application studies a linkage locking mechanism that enables the simultaneous opening or closing of multiple drawers, ensuring the safety of medicines and enabling rapid response in emergencies to provide timely nursing care to patients. Utility Model Content

[0005] In order to ensure both the safety of the medication and the ability to respond quickly in emergencies, so as to provide timely nursing care to patients.

[0006] On the one hand, the linkage lock mechanism provided in this application adopts the following technical solution:

[0007] A linkage lock mechanism includes a linkage structure, a linkage rod, and a drawer. The linkage structure includes a linkage lock, which moves in a direction close to or away from the linkage rod. The linkage rod is provided with a plurality of locking elements along its length, each locking element corresponding to a drawer. The drawer has a locking groove that engages with the locking elements.

[0008] When the linkage lock moves toward the linkage rod, it causes the linkage rod to move vertically upward, and the locking member disengages from the locking groove; when the linkage lock moves away from the linkage rod, it causes the linkage rod to move vertically downward, and the locking member inserts into the locking groove.

[0009] By adopting the above technical solution, the synchronous operation of multiple drawers is achieved through the cooperation of the linkage lock and the linkage rod. When the linkage lock moves towards the linkage rod, all locking parts disengage from the locking slots of the corresponding drawers, and all drawers are unlocked simultaneously. This allows nurses to quickly open the drawers to obtain medicines or instruments, enabling rapid response in emergencies and providing timely nursing services to patients. When the linkage lock moves away from the linkage rod, the locking parts insert into the locking slots, at which point the drawers cannot be pulled out, and all drawers are locked simultaneously, effectively preventing drawers from being opened at will and ensuring the safety of medicines and medical supplies.

[0010] Optionally, the linkage structure further includes an abutting member and a mating member. The abutting member is connected to the linkage lock, the abutting member abuts against the mating member, and the mating member is connected to one end of the linkage rod. When the linkage lock moves in a direction close to the linkage rod, the abutting member abuts against the mating member, causing the linkage rod to move in a vertically upward direction, and the locking member disengages from the locking groove. When the linkage lock moves in a direction away from the linkage rod, the abutting member abuts against the mating member, causing the linkage rod to move in a vertically downward direction, and the locking member inserts into the locking groove.

[0011] By adopting the above technical solution, the vertical upward or downward movement of the linkage rod can be precisely controlled through the interaction of the abutment and mating parts, making it easy to operate.

[0012] Optionally, the mating component is provided with an inclined surface on the side facing the abutting component, and the inclined surface is provided downward along the side away from the linkage rod to the side close to the linkage rod.

[0013] By adopting the above technical solution, the motion transition between the linkage lock and the linkage rod is made smoother, and the operation of the linkage lock is more labor-saving and makes it easier to move the linkage rod up or down.

[0014] Optionally, the linkage lock includes a lock body and a moving part, wherein the lock body is rotatably connected to the moving part.

[0015] By adopting the above technical solution, when the linkage lock is pulled out to the side away from the linkage rod, the linkage lock can be easily fixed by rotating the lock body, thereby fixing the linkage rod more stably and locking each drawer; when it is necessary to pull out the drawer, the lock body can be rotated to the horizontal and the linkage lock can be pushed into the linkage rod side to disengage the locking part from the locking groove and unlock the drawer.

[0016] Optionally, the abutting member includes an abutting portion and a guiding portion, the abutting portion being connected to the linkage lock, and the guiding portion being connected to the abutting portion and located on both sides of the mating member.

[0017] By adopting the above technical solution, the guide part provides double guidance and constraint to both sides of the abutment, enhancing the stability of the linkage lock during movement, so as to better move the linkage rod vertically.

[0018] Optionally, the guide portion is a roller.

[0019] Optionally, the linkage structure further includes a support member, on both sides of which are provided with guide grooves, and the two sides of the moving part extend into the guide grooves and move along the guide grooves.

[0020] By adopting the above technical solution, the movement of the interlocking lock can be more stable and accurate, and the interlocking lock can be limited by the support component.

[0021] Optionally, sliding parts are connected to both sides of the movable part, the sliding parts are inserted into the guide groove, and one side of the sliding part abuts against the inner sidewall of the support member.

[0022] Optionally, a limiting member is also included, wherein a limiting groove is formed on the side of the limiting member facing the locking member, and the locking member is located in the limiting groove when the linkage rod moves vertically upward.

[0023] By adopting the above technical solution, the upward movement of the locking component is limited by the limiting groove, and the movement of the linkage rod can be restricted by the cooperation between the locking component and the limiting groove, making the work vehicle more stable.

[0024] On the other hand, the work vehicle provided in this application adopts the following technical solution:

[0025] A work vehicle includes the aforementioned linkage locking mechanism, vehicle body, limiting member, and support member. The vehicle body has a clearance groove, and the linkage rod is inserted into the clearance groove and moves vertically along the clearance groove. The limiting member and the support member are both installed on the vehicle body.

[0026] In summary, this application includes the following beneficial technical effects:

[0027] 1. Through the cooperation of the interlocking lock and the linkage rod, the synchronous operation of multiple drawers is achieved. When the interlocking lock moves closer to the linkage rod, all locking parts disengage from the locking slots of the corresponding drawers, and all drawers are unlocked simultaneously. This allows nurses to quickly open the drawers to obtain medicines or instruments, enabling rapid response in emergencies and providing timely nursing services to patients. When the interlocking lock moves away from the linkage rod, the locking parts insert into the locking slots, at which point the drawers cannot be pulled out, and all drawers are locked simultaneously, effectively preventing drawers from being opened at will and ensuring the safety of medicines and medical supplies.

[0028] 2. Through the interaction of the abutment and mating parts, the vertical upward or downward movement of the linkage rod is precisely controlled, making it easy to operate;

[0029] 3. When the interlock is pulled out to the side away from the linkage rod, the interlock can be easily fixed by rotating the lock body, thereby more stably fixing the linkage rod and locking each drawer; when it is necessary to pull out the drawer, the lock body can be rotated to the horizontal and the interlock can be pushed into the linkage rod side to disengage the locking part from the locking groove and unlock the drawer. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0031] In the diagram:

[0032] Figure 1 This is a schematic diagram of the linkage lock mechanism according to an embodiment of this application;

[0033] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0034] Figure 3 This is a schematic diagram of the structure of the work vehicle according to an embodiment of this application;

[0035] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0036] Figure 5 This is a schematic diagram illustrating the structure of the interlocking lock and the vehicle body in the work vehicle of this application embodiment.

[0037] Reference numerals: 1. Linkage structure; 101. Abutting part; 111. Abutting portion; 112. Guide portion; 102. Mating part; 103. Supporting part; 104. Linkage lock; 401. Lock body; 402. Moving part; 2. Linkage rod; 3. Drawer; 5. Locking part; 6. Locking groove; 7. Guide groove; 8. Sliding part; 9. Limiting part; 10. Limiting groove; 11. Car body; 12. Clearing groove; 13. Fixing part; 14. Fixing groove. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] This application discloses a linkage lock mechanism. (Refer to...) Figure 1 and Figure 2 The linkage locking mechanism includes a linkage structure 1, a linkage rod 2, and a drawer 3. The linkage structure 1 includes a linkage lock 104, which is used to lock or open the drawer 3. The linkage lock 104 moves in a direction closer to or further away from the linkage rod 2. The linkage rod 2 is provided with a number of locking elements 5 along its length, and each locking element 5 corresponds to a drawer 3, that is, the position and number of the locking elements 5 correspond to the drawer 3.

[0040] Drawer 3 has a locking groove 6 that cooperates with the locking element 5. When the linkage lock 104 moves towards the linkage rod 2, it drives the linkage rod 2 to move vertically upward, and the locking element 5 disengages from the locking groove 6. At this time, all drawers 3 are unlocked at the same time, making it convenient for nurses to quickly open the drawers 3 to obtain medicines or instruments, enabling rapid response in emergency situations and providing timely nursing services to patients. When the linkage lock 104 moves away from the linkage rod 2, it drives the linkage rod 2 to move vertically downward, and the locking element 5 inserts into the locking groove 6. At this time, all drawers 3 are locked at the same time, effectively preventing the drawers 3 from being opened at will and ensuring the safety of medicines and medical supplies.

[0041] Reference Figure 2 In some embodiments, the linkage structure 1 further includes an abutment 101 and a mating member 102. The abutment 101 is connected to the linkage lock 104, and the abutment 101 abuts against the mating member 102. The mating member 102 is integrally connected to one end of the linkage rod 2. When the linkage lock 104 moves in a direction close to the linkage rod 2, the abutment 101 abuts against the mating member 102, causing the linkage rod 2 to move in a vertically upward direction, and the locking member 5 disengages from the locking groove 6. When the linkage lock 104 moves in a direction away from the linkage rod 2, the abutment 101 abuts against the mating member 102, causing the linkage rod 2 to move in a vertically downward direction, and the locking member 5 is inserted into the locking groove 6.

[0042] In some embodiments, the mating member 102 is inclined on the side facing the abutment member 101, and the inclined surface is inclined downward along the side away from the linkage rod 2 to the side close to the linkage rod 2. This allows the linkage rod 2 to move vertically through the position where the abutment member 101 engages with the inclined surface.

[0043] In some embodiments, the linkage lock 104 includes a lock body 401 and a moving part 402, wherein the lock body 401 is rotatably connected to the moving part 402 via a rotating shaft.

[0044] In some embodiments, the abutment member 101 includes an abutment portion 111 and a guide portion 112. The abutment portion 111 has a cylindrical rod-like structure and is connected to the linkage lock 104. The abutment portion 111 passes through the moving portion 402 of the linkage lock 104, with one end extending out of the moving portion 402 for abutting against the mating member 102. The guide portion 112 is connected to the abutment portion 111 and is located on both sides of the mating member 102. In some embodiments, the guide portion 112 is a roller. The roller is rotatably connected to the abutment portion 111, and rollers are provided on both sides of the mating member 102. The rollers enable more accurate and convenient movement of the linkage lock 104.

[0045] In some embodiments, the linkage structure 1 further includes a support member 103, with guide grooves 7 on both sides of the support member 103, and the moving part 402 extending into the guide grooves 7 on both sides and moving along the guide grooves 7. This enables the movement direction of the linkage lock 104 to be limited and guided.

[0046] In some embodiments, sliding portions 8 are bolted to both sides of the movable portion 402. The sliding portions 8 are inserted into the guide groove 7, and one side of the sliding portion 8 abuts against the inner wall of the support member 103. That is, the cross-section of the sliding portion 8 is a "T"-shaped structure, with one side extending out of the guide groove 7 and the end abutting against the inner wall of the support member 103, so that the position of the movable portion 402 on the support member 103 can be limited, making the connection more stable.

[0047] In some embodiments, a limiting member 9 is further included. The limiting member 9 has a limiting groove 10 on the side facing the locking member 5. When the linkage rod 2 moves vertically upward, the locking member 5 is located in the limiting groove 10. The limiting groove 10 limits the upward movement direction of the linkage rod 2, thereby limiting the pull-out position of the linkage lock 104, so that the linkage lock 104 can be more stable.

[0048] The implementation principle of the linkage lock mechanism in this application embodiment is as follows: Through the cooperation of the linkage lock 104 and the linkage rod 2, the synchronous operation of multiple drawers 3 is realized; when the linkage lock 104 moves towards the linkage rod 2, all locking parts 5 disengage from the locking slots 6 of the corresponding drawers 3, and all drawers 3 are unlocked at the same time, making it convenient for nurses to quickly open the drawers 3 to obtain medicines or instruments, enabling rapid response in emergency situations and providing timely nursing services to patients; when the linkage lock 104 moves away from the linkage rod 2, the locking parts 5 are inserted into the locking slots 6, at which time the drawers 3 cannot be pulled out, and all drawers 3 are locked at the same time, effectively preventing the drawers 3 from being opened at will and ensuring the safety of medicines and medical supplies.

[0049] This application discloses a work vehicle. (Refer to...) Figures 3-5A work vehicle includes the aforementioned linkage lock mechanism, vehicle body 11, limiting member 9, and support member 103. The vehicle body 11 has a clearance groove 12. The linkage rod 2 is inserted into the clearance groove 12 and moves vertically along the clearance groove 12. The limiting member 9 and the support member 103 are both installed on the vehicle body 11.

[0050] Reference Figure 5 In this embodiment, the linkage lock 104 includes a lock body 401 and a moving part 402. The lock body 401 is rotatably connected to the moving part 402 via a rotating shaft. A fixing member 13 is provided on the car body 11. The fixing member 13 has a lock hole, and the lock body 401 has a fixing groove 14. The lock body 401 is rotated so that the fixing member 13 is placed into the fixing groove 14. The lock body 401 is fixed by any lock such as a core lock through the lock hole, and the drawer 3 is locked at this time.

[0051] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0052] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A linkage lock mechanism, characterized in that: The device includes a linkage structure, a linkage rod, and a drawer. The linkage structure includes a linkage lock, which moves in a direction that approaches or moves away from the linkage rod. The linkage rod is provided with a plurality of locking elements along its length, and each locking element corresponds to a drawer. The drawer has a locking groove that cooperates with the locking elements. When the linkage lock moves toward the linkage rod, it causes the linkage rod to move vertically upward, and the locking member disengages from the locking groove; when the linkage lock moves away from the linkage rod, it causes the linkage rod to move vertically downward, and the locking member inserts into the locking groove.

2. The linkage lock mechanism according to claim 1, characterized in that: The linkage structure further includes an abutting member and a mating member. The abutting member is connected to the linkage lock, the abutting member abuts against the mating member, and the mating member is connected to one end of the linkage rod. When the linkage lock moves in a direction close to the linkage rod, the abutting member abuts against the mating member, causing the linkage rod to move in a vertically upward direction, and the locking member disengages from the locking groove. When the linkage lock moves in a direction away from the linkage rod, the abutting member abuts against the mating member, causing the linkage rod to move in a vertically downward direction, and the locking member inserts into the locking groove.

3. The linkage lock mechanism according to claim 2, characterized in that: The mating component is inclined on the side facing the abutting component, and the inclined surface is inclined downward from the side away from the linkage rod to the side close to the linkage rod.

4. The linkage lock mechanism according to claim 2, characterized in that: The abutting member includes an abutting part and a guiding part. The abutting part is connected to the linkage lock, and the guiding part is connected to the abutting part and located on both sides of the mating member.

5. The linkage lock mechanism according to claim 4, characterized in that: The guide part is a roller.

6. The linkage lock mechanism according to claim 1, characterized in that: The linkage lock includes a lock body and a moving part, with the lock body rotatably connected to the moving part.

7. A linkage lock mechanism according to claim 6, characterized in that: The linkage structure also includes a support member, on both sides of which are provided with guide grooves, and the two sides of the moving part extend into the guide grooves and move along the guide grooves.

8. The linkage lock mechanism according to claim 7, characterized in that: The movable part is connected to sliding parts on both sides, the sliding parts are inserted into the guide groove, and one side of the sliding part abuts against the inner sidewall of the support member.

9. The linkage lock mechanism according to claim 1, characterized in that: It also includes a limiting member, which has a limiting groove on the side facing the locking member. When the linkage rod moves vertically upward, the locking member is located in the limiting groove.

10. A work vehicle, characterized in that: The system includes a linkage lock mechanism, a vehicle body, a limiting member, and a supporting member as described in any one of claims 1-9. The vehicle body has a clearance groove, and the linkage rod is inserted into the clearance groove and moves vertically along the clearance groove. The limiting member and the supporting member are both installed on the vehicle body.