Mechanical delay unlocking lock

Abstract

The mechanical delayed unlocking lock comprises a lock body, a spring bolt rod and a containing part are arranged in the lock body, a rolling groove and a limiting block for limiting the length of the rolling groove are arranged at the top of the spring bolt rod, a steel ball is placed in the rolling groove, a containing cavity for containing a sponge piece is formed in the containing part, and the sponge piece is arranged in the containing cavity. An oil outlet is formed in the bottom of the containing component, and when the spring bolt rod stretches out and draws back, the steel ball rolls to make contact with the oil outlet. When the spring bolt rod finishes stretching and retracting once, the steel balls placed on the top of the spring bolt rod finish rolling once in the rolling groove of the spring bolt rod, and the steel balls make contact with the oil outlet in the upper portion in the rolling process, so that lubrication of the interior of the lock is completed.

Description

Technical Field

[0001] The utility model relates to the field of locks, in particular to a lock with mechanical delayed unlocking. Background Art

[0002] Delay locks are a type of lock that uses the principles of mechanical mechanics to achieve delayed unlocking and are widely used in various industries.

[0003] Patent No. "CN201220393743.6" discloses a delayed unlocking device, including a lever seat, a first lever and a second lever connected to the lever seat, a pressure block is provided on the second lever, and release plates are symmetrically provided on both sides of the pressure block. The protrusions of the release plate clamp the pressure block. When any release plate is activated, the pressure block rotates with the second lever and rotates on its own. An action rod that generates continuous elastic force on the first lever is also provided on one side of the first lever.

[0004] Although the delayed unlocking device can complete the delay, it may become stuck, corroded, or rusted after long-term use.

[0005] To this end, the applicant has made further improvements. Utility Model Content

[0006] The utility model addresses the deficiencies in the prior art and provides a lock with a mechanical delayed unlocking function. The utility model has a built-in component capable of storing lubricating oil and a steel ball matched therewith, so that the interior of the lock can be lubricated each time the bolt rod is extended and retracted.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0008] A lock with mechanical delayed unlocking includes a lock body, a lock tongue rod and a accommodating component provided inside the lock body, a rolling groove and a limit block for limiting the length of the rolling groove provided on the top of the lock tongue rod, a steel ball placed in the rolling groove, a accommodating cavity for accommodating a sponge sheet provided in the accommodating component, and an oil outlet provided at the bottom of the accommodating component. When the lock tongue rod is extended or retracted, the steel ball rolls to transfer the lubricating oil on the sponge sheet to the lock tongue rod.

[0009] In the above technical solution, preferably, the length of the oil outlet is equal to the length of the rolling groove.

[0010] In the above technical solution, preferably, the accommodating component is placed on the inner wall of the top of the lock body, and lubricating oil is stored in the sponge sheet.

[0011] In the above technical solution, preferably, the limit blocks are placed on both sides of the lock tongue rod.

[0012] In the above technical solution, preferably, one end of the lock tongue rod is connected to a spring rod, and the spring rod is connected to the first fixing plate and the second fixing plate.

[0013] In the above technical solution, preferably, a shift rod is provided between the first fixing plate and the second fixing plate, and a first gear is provided on the shift rod.

[0014] In the above technical solution, preferably, a delay device is further provided in the lock body, and the delay device is provided with a second gear that rotates in cooperation with the first gear.

[0015] In the above technical solution, preferably, the diameter of the second gear is smaller than the diameter of the first gear.

[0016] In the above technical solution, preferably, the first fixing plate limits the length of the spring passing through the spring rod.

[0017] In the above technical solution, preferably, the lock tongue rod is further connected to a lock tongue, and the lock tongue is in the shape of a semicircular trapezoid.

[0018] The beneficial effect of the utility model is that each time the lock tongue rod completes its extension and retraction, the steel ball placed on the top thereof completes its rolling in its rolling groove, and the steel ball contacts the oil outlet above during the rolling process, thereby completing the lubrication of the interior of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the utility model.

[0020] Figure 2 It is a side view schematic diagram of the utility model.

[0021] Figure 3 It is an enlarged schematic diagram of point D of the present invention.

[0022] Figure 4 This is an enlarged schematic diagram of point E of the present invention.

[0023] Figure 5 This is a top view of the accommodating component of the present invention.

[0024] 1. Lock body, 2. Lock tongue, 21. Lock tongue rod, 22. Spring rod, 23. Push rod, 24. First fixed plate, 25. Second fixed plate, 26. Rolling groove, 27. Limit block, 28. Steel ball, 29. First gear, 3. Accommodating component, 31. Accommodating chamber, 32. Sponge sheet, 33. Oil outlet, 4. Second gear. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] like Figure 1-Figure 5 As shown, the mechanical delayed unlocking lock includes a lock body 1, a lock tongue rod 21 and a accommodating component 3 are provided inside the lock body, a rolling groove 26 with a certain depth is provided on the top of the lock tongue rod 21, and limit blocks 27 are provided on both sides of the rolling groove 26. The limit blocks 27 are used to limit the length of the rolling groove 26.

[0027] In this embodiment, a steel ball 28 is placed in the rolling groove 26 . The diameter of the steel ball 28 is smaller than the diameter of the rolling groove 26 . The steel ball 28 contacts the receiving component 3 provided on the top inner wall of the lock body 1 .

[0028] Furthermore, the accommodating component 3 has an accommodating cavity 31 for placing a sponge sheet 32 ​​, and the sponge sheet 32 ​​stores lubricating oil. The bottom of the accommodating component 3 is provided with an oil outlet 33 in contact with the steel ball 28 .

[0029] The length of the oil outlet 33 is equal to the length of the rolling groove 26 , and the diameter of the oil outlet 33 is equal to the diameter of the steel ball 28 .

[0030] In this embodiment, the left side of the lock tongue rod 21 is connected to the lock tongue 2, and the shape of the lock tongue 2 is set to be a semicircular trapezoid.

[0031] Furthermore, a spring rod 22 is connected to the right side of the lock tongue rod 21, and the spring rod 22 is connected to a first fixing plate 24 and a second fixing plate 25. The center holes of the first fixing plate 24 and the second fixing plate 25 are both provided with through holes for the spring rod 22 to pass through.

[0032] Among them, the second fixing plate 25 is placed on the right side of the first fixing plate 24, and the first fixing plate 24 is used to limit the length of the spring rod 22 through which the spring is passed. In addition, a shift rod 23 is connected between the first fixing plate 24 and the second fixing plate 25, that is, the spring rod 22 is connected to the shift rod 23 at the part where the spring is not passed through.

[0033] A first gear 29 is provided below the lever 23, and a second gear 4 is provided below the first gear 29 for rotationally connecting therewith. When the second gear 4 rotates, the teeth provided on the second gear 4 fit with the teeth provided on the first gear 29, and drive the first gear 29 to rotate. The first gear 29 provides a force for the lateral movement of the lever 23, and drives the spring rod 22, the lock tongue rod 21, and the lock tongue 2 to move laterally together. Whenever the lock tongue rod 21 completes a telescopic reciprocating motion, the steel ball at its top located in the rolling groove 26 completes the telescopic reciprocating motion together, and touches the oil outlet 33 of the accommodating component 3 to transfer the lubricating oil in the sponge sheet 32 ​​to the rolling groove 26, the lock tongue rod 21, and the spring rod 22, thereby completing the lubrication of the utility model.

[0034] Furthermore, a transmission assembly cooperating therewith is provided at the connection between the lever 23 and the first gear 29 and inside the lever 23. The transmission assembly further provides power for the lever 23 to move laterally, thereby ensuring that the bolt rod 21 can complete the telescopic reciprocating motion.

[0035] In addition, the second gear 4 is connected to a delay device, and a power component is provided inside the delay device to provide rotational power for the second gear 4. The power can ensure that the first gear 29 is driven to rotate, and the first gear 29 drives the shift rod 23 to move horizontally.

[0036] Although the diameter and teeth of the second gear 4 are smaller than those of the first gear 29 , the force provided by the second gear 4 can ensure that the bolt rod 21 inside the lock body 1 completes the telescopic reciprocating motion.

[0037] In this embodiment, the accommodating component 3 is further provided with a pull block 34 on the right side. When the lubricating oil in the sponge sheet 32 ​​is used up, the right side of the accommodating component 3 can be opened by pulling the pull block 34 to replace the sponge sheet 32 ​​or re-store the lubricating oil.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A mechanical delayed unlocking lock, characterized by: The invention comprises a lock body (1), wherein a lock tongue rod (21) and a receiving component (3) are provided inside the lock body (1), a rolling groove (26) and a limit block (27) for limiting the length of the rolling groove (26) are provided on the top of the lock tongue rod (21), a steel ball (28) is placed in the rolling groove (26), a receiving cavity (31) for receiving a sponge sheet (32) is provided in the receiving component (3), and an oil outlet (33) is provided at the bottom of the receiving component (3), and when the lock tongue rod (21) is extended or retracted, the steel ball (28) rolls to transfer lubricating oil on the sponge sheet (32) to the lock tongue rod (21).

2. The mechanical delayed unlocking lock according to claim 1, characterized in that: The length of the oil outlet (33) is equal to the length of the rolling groove (26).

3. The mechanical delayed unlocking lock according to claim 1, characterized in that: The accommodating component (3) is placed on the inner wall of the top of the lock body (1), and lubricating oil is stored in the sponge sheet (32).

4. The mechanical delayed unlocking lock according to claim 1, characterized in that: The limiting blocks (27) are placed on both sides of the locking tongue rod (21).

5. The mechanical delayed unlocking lock according to claim 1, characterized in that: One end of the lock tongue rod (21) is connected to a spring rod (22), and the spring rod (22) is connected to a first fixing plate (24) and a second fixing plate (25).

6. The mechanical delayed unlocking lock according to claim 5, characterized in that: A shifting rod (23) is provided between the first fixing plate (24) and the second fixing plate (25), and a first gear (29) is provided on the shifting rod.

7. The mechanical delayed unlocking lock according to claim 6, characterized in that: A time delay device is also provided in the lock body (1), and the time delay device is provided with a second gear (4) that rotates in conjunction with the first gear (29).

8. The mechanical delayed unlocking lock according to claim 7, characterized in that: The diameter of the second gear (4) is smaller than the diameter of the first gear (29).

9. The mechanical delayed unlocking lock according to claim 5, characterized in that: The first fixing plate (24) limits the length of the spring passing through the spring rod (22).

10. The mechanical delayed unlocking lock according to claim 1, characterized in that: The lock tongue rod (21) is also connected to a lock tongue (2), and the lock tongue (2) is in the shape of a semicircular trapezoid.

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