Mechanical lock capable of preventing plunger latch from being blocked

By incorporating a lubrication system with a sleeve and sponge frame around the latch, combined with the design of the outer lock housing and buckle, the problem of easy corrosion and jamming of the latch is solved, achieving stable use and smooth operation of the lock.

CN224048877UActive Publication Date: 2026-03-27GUANGDONG JINJU HARDWARE PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Mechanical locks are prone to rusting due to long-term exposure to the outside, which can cause jamming and affect the ease of unlocking and locking.

Method used

A sleeve is installed around the latch, with a sponge frame embedded in the sleeve. The sponge frame has a slanted groove and a drainage hole, which connects to the drainage pipe and the oil reservoir. The lubricating oil is evenly applied to the latch through the drainage pipe to prevent jamming. The outer lock shell is fixedly connected to the mounting frame, and the round hole facilitates installation. The buckle has a soft rubber frame to prevent dust and water stains from entering.

Benefits of technology

Keep the latch lubricated to prevent jamming, ensure stable use of the lock, prevent rust, and keep unlocking and locking smooth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mechanical lock capable of preventing a plunger latch from being blocked, which belongs to the technical field of mechanical locks and comprises a lockset, a lubricating mechanism is arranged at one end inside the lockset, a lock catch is aligned to one end of the lockset, the lubricating mechanism comprises a plunger latch piece, a sleeve frame is sleeved on the periphery of the plunger latch piece, a sponge frame is attached to the inner wall of the periphery of the sleeve frame, and the sponge frame is provided with a locking groove. A chute is formed in the sponge frame, a drainage hole is connected to the top end of the sponge frame, a drainage pipe is connected to the top end of the drainage hole, an oil storage box is connected to the top end of the drainage pipe, and a sealing cover is arranged at the top end of the oil storage box. According to the mechanical lock, the sleeve frames on the periphery of the plunger latch piece are kept in an attached state, the plunger latch piece can be attached to the inclined grooves in the inner wall of the sponge frame in the elastic stretching and retracting process, lubricating oil in the oil storage box can be evenly injected through the drainage pipe, and therefore the sponge frame is wetted, oil is continuously supplied to the plunger latch piece in the stretching and retracting process to keep lubrication, and blocking is avoided; and the use process of the lock is stable.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical lock technical field, concretely is a kind of mechanical lock that can prevent locking bolt jam. BACKGROUND

[0002] Mechanical lock is a kind of device that is closed and opened by pure mechanical structure, does not need electronic component, relies on key, password or specific operation control lock cylinder movement, and mechanical lock is composed of lock cylinder, pin, spring, key these key components, needs to cooperate with key use, after key insertion, the arrangement of pin is matched with lock cylinder to rotate and unlock, common include padlock, door lock, drawer lock, mechanical type in password lock, there are also leaf lock, magnetic lock etc., mechanical lock simple structure, low cost, easy to maintain, no power supply, most of which are applied in family, office, locker, bicycle lock these common places.

[0003] The main lock of mechanical lock, such as door lock type lock, is mainly composed of shell, lock cylinder, lock tongue and key, is fixed by screw through the hole slot of lock shell and door body, when using, by inserting key, key teeth push pin or blade to specific height, at this time, the boundary line of upper pin and lower pin is aligned with lock cylinder shell, so as to release lock tongue buckle, spring contracts lock tongue, and then makes door frame separate from lock tongue restriction, completes unlocking process.

[0004] In the use process of traditional mechanical lock, since its lock bolt is long-term outside lock, it is used with lock catch, but since lock bolt is long-term outside, it is easy to contact dust and water stain mist etc., so as to cause lock bolt surface rust, and also make the inner wall of contacted lock catch rust, so as to affect normal use of lock bolt, cause inconvenience in unlocking and locking process, affect normal use of mechanical lock, for this purpose, we propose a kind of mechanical lock that can prevent locking bolt jam. CONTENT OF THE UTILITY MODEL

[0005] The content part of the application is used to introduce the concept in brief form, which will be described in detail in the specific embodiment part. The content part of the application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] The utility model discloses a kind of mechanical lock that can prevent locking bolt jam, to solve the problem proposed in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: A kind of mechanical lock capable of preventing locking latch jam, including lock, the inside one end of the lock is provided with lubricating mechanism, and the one end of lock is aligned with lock catch, the lubricating mechanism includes locking latch, and the periphery of locking latch is equipped with sleeve frame, the periphery inner wall of the sleeve frame is attached with sponge frame, and the inside of the sponge frame is provided with inclined slot, the top of the sponge frame is connected with drainage hole, and the top of the drainage hole is connected with drainage tube, the top of the drainage tube is connected with oil storage box, and the top of the oil storage box is provided with cover.

[0008] Further, the sponge frame is fixed inside one end of the lock through the sleeve frame, and the inclined slots are equidistantly arranged along the periphery inner wall of the sponge frame in an inclined manner.

[0009] Further, the drainage holes are embedded along the top of the sponge frame and equidistantly arranged, and the drainage holes are connected in communication with the oil storage box through the drainage tube.

[0010] Further, the lock includes an outer lock shell, and the middle end of the outer lock shell is provided with a lock handle, the top and bottom ends of the outer lock shell are connected with a mounting frame, and the two ends of the mounting frame are provided with circular holes.

[0011] Further, the outer lock shell is fixedly connected with the mounting frame, and the circular holes are symmetrically provided along the two ends of the mounting frame.

[0012] Further, the lock catch includes a catch, and the upper and lower ends of the catch are connected with a catch plate, one side of the catch is provided with a catch slot, and the periphery inner wall of the catch slot is attached with a soft rubber frame.

[0013] Further, the catch is fixedly connected with the catch plate, and the soft rubber frame is uniformly attached along the inner wall of the catch slot on one side of the catch.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The sleeve frame around the locking latch keeps a state of close contact, and the inclined slots in the inner wall of the sponge frame are in close contact with the locking latch during the elastic expansion and contraction of the locking latch, so that the lubricating oil in the oil storage box is uniformly injected through the drainage tube, the sponge frame is moistened, the locking latch is continuously lubricated during the expansion and contraction process, the jamming is avoided, the use of the lock is stable, and the like.

[0016] The outer lock shell is the main body of the mechanical lock, and the mounting frame fixedly connected on both sides of the outer lock shell forms an integral body, so that the stability of the structure as a whole after being mounted is maintained, and the circular holes at the two ends of the mounting frame can be conveniently fixed by fasteners such as bolts.

[0017] The soft rubber frame is arranged in the inner wall of the catch slot of the catch, which can keep the closure around in the locked state, avoid water stains and dust from entering, and ensure the smooth use of the lock. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the main frame of the utility model;

[0019] Figure 2 It is a three-dimensional structure schematic view of the lubricating mechanism in the main frame of the utility model;

[0020] Figure 3 It is a schematic view of the internal structure of the lubricating mechanism in the utility model;

[0021] Figure 4 It is a three-dimensional structure schematic view of the lock catch.

[0022] In the figure: 1, lockset; 101, outer lock shell; 102, lock handle; 103, mounting bracket; 104, round hole; 2, lubricating mechanism; 201, latch; 202, sleeve; 203, sponge frame; 204, inclined slot; 205, drainage hole; 206, drainage pipe; 207, oil storage box; 208, cover; 3, lock catch; 301, catch; 302, catch plate; 303, catch slot; 304, soft rubber frame. DETAILED DESCRIPTION

[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the scope of protection of the present disclosure.

[0024] In addition, it should be further noted that, for ease of description, only the parts related to the invention are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units

[0026] It should be noted that the modification of "one" or "multiple" in the present disclosure is illustrative and not limiting, and those skilled in the art should understand that, unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0027] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] The utility model provides a Figures 1-4The mechanical lock shown in the embodiment can prevent the lock from being jammed, comprising a lock 1, a lubricating mechanism 2 arranged at one end of the lock 1, and a lock catch 3 aligned at one end of the lock 1. The lock 1 comprises an outer lock shell 101, and a lock handle 102 arranged at the middle end of the outer lock shell 101. The top end and the bottom end of the outer lock shell 101 are connected with a mounting bracket 103, and the two ends of the mounting bracket 103 are provided with round holes 104.

[0029] In order to provide stable placement of the overall mechanical lock during use, as shown in the embodiment, Figure 1 The mechanical lock is formed as a whole by the outer lock shell 101 as the lock body and the mounting bracket 103 fixedly connected on both sides of the outer lock shell 101, so that the stability of the structure as a whole can be maintained after placement, and the round holes 104 at the two ends of the mounting bracket 103 can be conveniently fastened by bolts and other fasteners.

[0030] As shown in the embodiment, Figures 2-3 The lubricating mechanism 2 comprises a lock piece 201, and a sleeve bracket 202 sleeved around the lock piece 201. A sponge frame 203 is attached to the inner wall around the sleeve bracket 202, and an inclined groove 204 is arranged in the inner part of the sponge frame 203. A drainage hole 205 is connected to the top end of the sponge frame 203, and a drainage pipe 206 is connected to the top end of the drainage hole 205. The top end of the drainage pipe 206 is connected with an oil storage box 207, and a cover 208 is arranged at the top end of the oil storage box 207.

[0031] In order to prevent the mechanical lock from being jammed during use, as shown in the embodiment, Figures 2-3 The sleeve bracket 202 around the lock piece 201 is kept in a state of close contact, so that the lock piece 201 can be in close contact with the inclined groove 204 of the inner wall of the sponge frame 203 during the elastic expansion and contraction of the lock piece 201. The lubricating oil in the oil storage box 207 can be uniformly injected through the drainage pipe 206, so that the sponge frame 203 is moistened, the lock piece 201 during the expansion and contraction process is continuously lubricated, the jamming is avoided, and the stability of the lock 1 during use is ensured.

[0032] As shown in the embodiment, Figure 4 The lock catch 3 comprises a catch 301, and a catch plate 302 connected to the upper and lower ends of the catch 301. A catch groove 303 is arranged on one side of the catch 301, and a soft rubber frame 304 is attached to the inner wall around the catch groove 303.

[0033] Finally, in order to avoid the lock piece 201 from being affected by dust or water stains after being locked, as shown in the embodiment, Figure 4 The soft rubber frame 304 is arranged in the inner wall of the catch groove 303 of the catch 301, so that the four sides are kept closed in the locked state, the entry of water stains and dust is avoided, and the smooth use of the lock is ensured.

[0034] In summary, when the mechanical lock is in use, firstly, the user can make the outer lock shell 101 fit the door body through the installation frame 103 on both sides of the outer lock shell 101, and then fix the fastener into the round hole 104 and the installation frame 103, so that the outer lock shell 101 and the lock catch 3 are stably installed on the door body and the door frame and are aligned, so that the lock bolt 201 can be aligned and locked with the buckle groove 303, and the sponge frame 203 is communicated with the drainage hole 205, the user can store lubricating oil in the oil storage box 207, the lubricating oil is injected into the drainage hole 205 through the drainage pipe 206, and the sponge frame 203 is soaked, when the lock bolt 201 is in the process of stretching and retracting, the sponge frame 203 is repeatedly rubbed, so that the surface is evenly coated with the lubricating oil, and the lubrication is completed.

[0035] The above description is merely some preferred embodiments of the present disclosure and a description of the principles of the technology used. Those skilled in the art should understand that the scope of the application involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features disclosed in the embodiments of the present disclosure (but not limited to) having similar functions to form technical solutions.

Claims

1. A mechanical lock which is protected against latch-bumping, comprising a lockset (1), characterized in that: The inside one end of the lock (1) is provided with lubricating mechanism (2), and the one end of lock (1) is aligned with lock (3), the lubricating mechanism (2) includes latch (201), and the periphery of latch (201) is sleeved with sleeve frame (202), the periphery of the inner wall of sleeve frame (202) is attached with sponge frame (203), and the inside of sponge frame (203) is provided with inclined slot (204), the top of sponge frame (203) is connected with drainage hole (205), and the top of drainage hole (205) is connected with drainage tube (206), the top of drainage tube (206) is connected with oil storage box (207), and the top of oil storage box (207) is provided with cover (208).

2. A mechanical lock that prevents lockout according to claim 1, wherein: The sponge frame (203) is fixed inside the one end of the lock (1) through the sleeve frame (202), and the inclined slots (204) are arranged equidistantly along the inclined inner wall of the sponge frame (203).

3. A mechanical lock that prevents lockout according to claim 1, wherein: The drainage hole (205) is embedded along the top of the sponge frame (203) and arranged equidistantly, and the drainage hole (205) is connected with the oil storage box (207) through the drainage tube (206).

4. A pick-resistant mechanical lock according to claim 1, wherein: The lock (1) comprises an outer lock shell (101), and the middle end of the outer lock shell (101) is provided with a lock handle (102), the top and bottom of the outer lock shell (101) are connected with a mounting frame (103), and the both ends of the mounting frame (103) are provided with a circular hole (104).

5. A pick-resistant mechanical lock according to claim 4, wherein: The outer lock shell (101) and the mounting frame (103) are fixedly connected, and the circular holes (104) are symmetrically provided along the both ends of the mounting frame (103).

6. A pick-resistant mechanical lock according to claim 1, wherein: The lock (3) comprises a buckle (301), and the upper and lower ends of the buckle (301) are connected with a buckle plate (302), one side of the buckle (301) is provided with a buckle slot (303), and the periphery of the inner wall of the buckle slot (303) is attached with a soft rubber frame (304).

7. A pick-resistant mechanical lock according to claim 6, wherein: The buckle (301) and the buckle plate (302) are fixedly connected, and the soft rubber frame (304) is uniformly attached along the inner wall of the buckle slot (303) of the buckle (301).