A precision instrument carrying case with a locking mechanism
By designing a combination structure of lock base, lock head, fixing hole and locking rod in the precision instrument case, the problem of anti-theft and fixation failure caused by damage to the lock structure is solved. It can maintain the anti-theft and fixation effect of the case through mechanical lock even when the locking rod is damaged, thus improving the reliability and service life of the locking structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TAIKUN ENVIRONMENTAL TESTING CO LTD
- Filing Date
- 2025-01-17
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, the locks on the market are mechanical locks. In the lock structure, the latch structure is usually set with a combination lock. By integrating the anti-theft function and the locking function into one, once this component is damaged, the suitcase loses its anti-theft effect and fixing function, and becomes unusable.
Design a precision instrument carrying case with a locking structure. It adopts a combination structure of lock base, lock head, fixing hole and locking rod. The anti-theft installation is achieved by mechanical lock. Even if the locking rod is damaged, it can still be used by mechanical lock, which enhances the fault tolerance rate.
This design ensures that the lock can maintain its anti-theft and secure function even when the locking rod is damaged, preventing overall failure due to damage to a single locking component and improving the reliability and service life of the locking structure.
Smart Images

Figure CN224278228U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of instrument packaging technology, specifically a precision instrument carrying case with a locking structure. Background Technology
[0002] When carrying precision instruments, they are usually placed in a special storage box. The box is made of flexible material such as foam with grooves that fit the instrument, thus effectively protecting it.
[0003] However, during transport, the case needs to be equipped with a locking mechanism on the outside. On the one hand, the locking mechanism can prevent the case lid from popping open and causing the instrument to fall and be damaged. On the other hand, it can also play a role in preventing theft. Currently, the locking mechanism of suitcases on the market is usually a combination lock. By integrating the anti-theft function and the locking function into one, it is convenient to use. However, its disadvantages are also obvious. Once this component is damaged, the case loses its anti-theft effect. Most importantly, even the basic fixing function is lost, making the case unusable. Therefore, a precision instrument suitcase with a locking mechanism is specially provided to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a precision instrument briefcase with a locking structure. This solves the problem that the locking structure of briefcases on the market usually uses a combination lock. By integrating the anti-theft function with the locking function, it is convenient to use, but its disadvantages are also obvious. Once this component is damaged, the briefcase loses its anti-theft effect, and most importantly, even its basic fixing function is lost, making the briefcase unusable.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a precision instrument carrying case with a locking structure, comprising a case body and a case lid, wherein one side of the case body and the case lid are movably hinged, and the other side of the case body and the case lid is provided with a locking element, wherein the locking element includes;
[0006] The lock base is fixedly installed on the box body;
[0007] Two sets of lock cylinders are fixedly installed on both sides of the box lid, and the lock cylinders are rotated into the two ends of the lock base as the box lid is flipped.
[0008] A fixing hole is provided through both sides of the lock base, and the lock head and the fixing hole are installed with a mechanical lock to achieve anti-theft installation;
[0009] The locking rod is slidably disposed in the lock seat, and the locking rod is movably inserted into the lock head to achieve a snap-fit fixation.
[0010] Preferably, both ends of the lock seat are integrally formed with a retaining base, and the fixing hole is formed in the retaining base.
[0011] Preferably, the lock head flips into the card slot, and the outer end of the locking rod extends into the card slot.
[0012] Preferably, the outer wall of the lock seat is rotatably provided with a drive handle, the inner end of the locking rod is fixedly provided with a rack, the inner end of the drive handle is fixedly provided with a gear, and the rack meshes with the gear.
[0013] Preferably, a connecting part is fixedly provided between the locking rod and the rack, a positioning shaft is movably inserted into the middle of the connecting part, and a locking spring is movably sleeved on the outer surface of the inner end of the positioning shaft.
[0014] Preferably, the lock head includes;
[0015] The mounting part is riveted to the box cover;
[0016] The locking plate is integrally formed on the mounting part;
[0017] A keyhole is formed on the outer wall of the lock plate, and the locking rod passes through the keyhole;
[0018] The retaining ring is integrally formed on the outer wall of the lock plate, and the retaining ring is directly opposite the retaining hole.
[0019] Preferably, protective components are fixedly installed at the top corners of both the box body and the box cover.
[0020] Preferably, the box body is movably hinged with a handle.
[0021] This utility model discloses a precision instrument carrying case with a locking structure, which has the following beneficial effects: The entire locking component has two locking parts. During daily carrying, the lock head is inserted into the two sets of card slots, and then the lock head is fixed by the locking rod, which can achieve a basic case lid fixing effect, making it convenient to use. When anti-theft effect is required, a mechanical lock is inserted between the fixing hole and the fixing ring, thereby achieving anti-theft fixation. At the same time, when the locking component is damaged, the locking rod cannot be fixed with the lock head. In this case, it can still be used by inserting a mechanical lock between the fixing hole and the fixing ring, thereby increasing the overall locking effectiveness, improving the fault tolerance rate, and avoiding the situation where the entire case cannot be used due to the damage of a single locking part. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the outer surface structure of the locking component of this utility model;
[0025] Figure 3 This is a cross-sectional view of the internal structure of the locking fastener of this utility model;
[0026] Figure 4 This is a schematic diagram of the outer surface structure of the lock head of this utility model.
[0027] In the diagram: 1. Box body; 2. Box lid; 3. Handle; 4. Protective component; 5. Locking fastener; 51. Lock seat; 52. Lock head; 521. Mounting part; 522. Lock plate; 523. Lock hole; 524. Fixing ring; 53. Card seat; 54. Fixing hole; 55. Drive handle; 56. Gear; 57. Rack; 58. Locking rod; 59. Connecting part; 510. Positioning shaft; 511. Locking spring. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] This application provides a precision instrument briefcase with a locking structure, which solves the problem that the locking structure of briefcases on the market usually uses a combination lock. By integrating the anti-theft function and the locking function into one, it is convenient to use, but its disadvantages are also obvious. Once this component is damaged, the briefcase loses its anti-theft effect, and most importantly, even the basic fixing function is lost, making the briefcase unusable.
[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0031] This utility model discloses a precision instrument carrying case with a locking structure.
[0032] Example 1
[0033] According to the appendix Figure 1-4 As shown, it includes a box body 1 and a box cover 2. The box body 1 and the box cover 2 are hinged on one side, and a locking element 5 is provided on the other side of the box body 1 and the box cover 2. The locking element 5 includes:
[0034] Lock base 51 is fixedly mounted on housing 1;
[0035] Two sets of lock heads 52 are fixedly installed on both sides of the box cover 2, and the lock heads 52 follow the box cover 2 to flip into the two ends of the lock base 51.
[0036] A fixing hole 54 is provided through both sides of the lock base 51, and the lock head 52 and the fixing hole 54 are installed with a mechanical lock to achieve anti-theft installation;
[0037] The locking rod 58 is slidably disposed in the lock seat 51, and the locking rod 58 is movably inserted into the lock head 52 to achieve a snap-fit fixation.
[0038] Lock head 52 includes;
[0039] Mounting part 521, which is riveted to the box cover 2;
[0040] Lock plate 522 is integrally formed on mounting part 521;
[0041] A keyhole 523 is formed on the outer wall of the lock plate 522, and a locking rod 58 passes through the keyhole 523;
[0042] The retaining ring 524 is integrally formed on the outer wall of the locking plate 522, and the retaining ring 524 is directly opposite the retaining hole 54.
[0043] Protective components 4 are fixedly installed at the top corners of both the box body 1 and the box cover 2.
[0044] A handle 3 is hinged to the box body 1.
[0045] In this embodiment, the entire locking fastener 5 has two locking parts. During daily carrying, the lock head 52 is inserted into the two sets of card slots 53, and then the lock head 52 is fixed by the locking rod 58, which can achieve the basic fixing effect of the box lid 2, making it convenient to use. When the anti-theft effect is required, a mechanical lock is inserted between the fixing hole 54 and the fixing ring 524, thereby achieving the anti-theft fixing. At the same time, when the locking fastener 5 is damaged, the locking rod 58 cannot be fixed with the lock head 52. At this time, it can still be used by inserting a mechanical lock between the fixing hole 54 and the fixing ring 524, thereby increasing the overall locking effectiveness, improving the fault tolerance rate, and avoiding the situation where the entire box 1 becomes unusable due to the damage of a single locking part.
[0046] Example 2
[0047] See attached document Figure 1-4 More specifically, based on Example 1, the following is also relevant:
[0048] Both ends of the lock base 51 are integrally formed with a card seat 53, and the fixing hole 54 is opened in the card seat 53.
[0049] The lock head 52 flips into the card holder 53, and the outer end of the locking rod 58 extends into the card holder 53.
[0050] A drive handle 55 is rotatably provided on the outer wall of the lock base 51, a rack 57 is fixedly provided on the inner end of the locking rod 58, and a gear 56 is fixedly provided on the inner end of the drive handle 55. The rack 57 and the gear 56 mesh with each other.
[0051] A connecting part 59 is fixedly provided between the locking rod 58 and the rack 57. A positioning shaft 510 is movably inserted into the middle of the connecting part 59. A locking spring 511 is movably sleeved on the outer surface of the inner end of the positioning shaft 510.
[0052] In this embodiment, by rotating the drive handle 55, the drive handle 55 drives the gear 56 to rotate. The gear 56 drives the racks 57 on both sides to move towards the center, so that the locking rod 58 is moved out of the card seat 53, thereby facilitating unlocking. At the same time, when locking, when the locking rod 58 is inserted into the lock hole 523 in the lock head 52, the locking spring 511 pushes the two sets of connecting parts 59 to move to both sides, so that the locking rod 58 can be effectively kept in the lock hole 523, thereby achieving a secure locking and fixing, and preventing the lid 2 from automatically popping open during carrying.
[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A precision instrument carrying case with a locking structure, comprising a case body (1) and a case lid (2), characterized in that, The box body (1) and the box cover (2) are hinged on one side, and a locking fastener (5) is provided on the other side of the box body (1) and the box cover (2). The locking fastener (5) includes: Lock seat (51), which is fixedly installed on the box body (1); Two sets of lock heads (52) are fixedly installed on both sides of the box cover (2), and the lock heads (52) follow the box cover (2) to flip and enter the two ends of the lock base (51); A fixing hole (54) is provided through both sides of the lock base (51), and the lock head (52) and the fixing hole (54) are installed with a mechanical lock to achieve anti-theft installation; The locking rod (58) is slidably disposed in the lock seat (51), and the locking rod (58) is movably inserted into the lock head (52) to achieve a snap-fit fixation.
2. A precision instrument carrying case with a locking structure according to claim 1, characterized in that: Both ends of the lock base (51) are integrally formed with a card seat (53), and the fixing hole (54) is opened in the card seat (53).
3. A precision instrument carrying case with a locking structure according to claim 2, characterized in that: The lock head (52) flips into the card holder (53), and the outer end of the locking rod (58) extends into the card holder (53).
4. A precision instrument carrying case with a locking structure according to claim 1, characterized in that: The outer wall of the lock seat (51) is rotatably provided with a drive handle (55), the inner end of the locking rod (58) is fixedly provided with a rack (57), the inner end of the drive handle (55) is fixedly provided with a gear (56), and the rack (57) meshes with the gear (56).
5. A precision instrument carrying case with a locking structure according to claim 4, characterized in that: A connecting part (59) is fixedly provided between the locking rod (58) and the rack (57). A positioning shaft (510) is movably inserted into the middle of the connecting part (59). A locking spring (511) is movably sleeved on the outer surface of the inner end of the positioning shaft (510).
6. A precision instrument carrying case with a locking structure according to claim 1, characterized in that: The lock head (52) includes; Mounting part (521), which is riveted to the box cover (2); Lock plate (522), which is integrally formed on mounting part (521); A lock hole (523) is provided on the outer wall of the lock plate (522), and the locking rod (58) passes through the lock hole (523); The retaining ring (524) is integrally formed on the outer wall of the locking plate (522), and the retaining ring (524) is directly opposite the retaining hole (54).
7. A precision instrument carrying case with a locking structure according to claim 1, characterized in that: Protective components (4) are fixedly installed at the top corners of both the box body (1) and the box cover (2).
8. A precision instrument carrying case with a locking structure according to claim 1, characterized in that: A handle (3) is movably hinged to the box body (1).