Mortise lock with improved mechanical structure

Abstract

The utility model relates to the technical field of locks, and discloses a mortise lock with an improved mechanical structure, a dustproof assembly is arranged between a lock shell and a lock cylinder, the dustproof assembly is arranged between the lock shell and the lock cylinder, a dust blowing device is arranged on the outer surface of the side wall of the lock cylinder, and a dustproof cover is controlled to rotate through a key. The dustproof plate slides along the sliding groove under the action of gravity, the dustproof cover is closed when a key does not need to be inserted, floating dust is prevented from entering a lock cylinder hole, the key is inserted into a second hole in the dustproof cover, the dustproof cover is connected to the outer surface of the lock cylinder in a sleeving mode, the lock cylinder is prevented from being damaged, and multiple protection and cleaning mechanisms are combined. The three functions of dust prevention, dust removal and lock opening and closing are controlled by rotating the key.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lock technical field, concretely is a mechanical structure improved plug-in core lock. BACKGROUND

[0002] In daily life, mechanical plug-in core locks are widely used in various door hardware and bear the important responsibility of ensuring safety. However, the lock core is exposed to the external environment for a long time and is easily disturbed by dust. Once the dust enters the lock core, it accumulates on the contact surface of the lock core and the key, not only accelerating the wear of the lock core components and reducing the service life of the lock, but also causing the key to be difficult to plug in and out, seriously affecting the user's experience.

[0003] At present, a common dust prevention technology is to install a simple rubber dust cover outside the lock core. This dust cover can block larger particles of dust from falling directly into the lock core hole to a certain extent and has a preliminary protective effect. However, its protective effect has obvious limitations. On the one hand, fine dust can still enter through the gap between the dust cover and the lock core, and over time, it will still cause damage to the lock core; on the other hand, the dust cover only has a dust prevention function and cannot effectively clean the dust that has already entered the surrounding of the lock core. With the passage of time, the dust accumulation problem still cannot be fundamentally solved, which prompts us to develop a more perfect dust prevention, dust blocking and dust blowing integrated solution. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the utility model provides a mechanical structure improved plug-in core lock, which has the advantages of comprehensive protection, automatic cleaning and prolonging the service life of the lock, and solves the problems that the traditional rubber dust cover cannot block fine dust, cannot clean the already entered dust, and the lock core is damaged and inconvenient to use due to dust accumulation.

[0006] (II) Technical solutions

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical structure improved plug-in core lock, comprising a base assembly and a lock shell, a first hole is provided on the lock shell, a lock core is provided at the inner position of the first hole, a dust prevention assembly is further provided at the outer position of the first hole of the lock shell, and the dust prevention assembly comprises:

[0008] A dust cover is installed in the first hole, and the dust cover is composed of an end cover and a side wall around the end cover;

[0009] A second hole is provided on the end cover of the dust prevention assembly for inserting an external key;

[0010] The dustproof plate is slidably connected to the end cover of the dust cover near the lock cylinder, and the end cover of the dust cover is provided with a sliding groove, and the dustproof plate is slidably connected in the sliding groove, and is used for covering the second hole when the key is not rotated.

[0011] After the key is inserted into the second hole, the key is rotated to drive the dustproof assembly to rotate to the upper position, the dustproof plate is slidably downward along the sliding groove under the action of gravity, and the overlapping part of the dustproof plate and the second hole is gradually reduced until the second hole is completely exposed, and at this time the key can be continuously inserted into the lock cylinder.

[0012] Preferably, the lock cylinder comprises:

[0013] The pin hole is arranged on the side wall of the lock cylinder and is used for cooperating with the key to rotate the lock cylinder.

[0014] The rotating shaft is fixedly arranged at one end of the lock cylinder and is used for sleeving the guide wheel arranged on the base assembly.

[0015] The third hole is arranged at the other end of the lock cylinder.

[0016] Preferably, the lock cylinder further comprises a dust blowing device arranged on the outer surface of the side wall of the lock cylinder, and the dust blowing device comprises:

[0017] The air bag is fixedly arranged on the side wall of the outer surface of the lock cylinder at the position of the pin hole and is used for blowing air to the third hole.

[0018] The pressing block is fixedly arranged on the inner side wall of the dust cover and is used for extruding the air bag when the dustproof assembly rotates.

[0019] Preferably, the air bag is communicated with an air outlet pipe and an air inlet pipe, the air outlet pipe is arranged in the gap between the air bag and the lock cylinder, the air inlet pipe is arranged on the surface of the air bag in contact with the external air, and the air outlet pipe and the air inlet pipe are both provided with a one-way valve.

[0020] Preferably, the surface of the air bag is provided with a wrinkle layer for the rebound of the air bag.

[0021] Preferably, the base assembly comprises:

[0022] The base layer is arranged on the base layer, and the fifth hole is arranged on the base layer.

[0023] The base cover is fixedly arranged on the base layer, and the fourth hole corresponding to the fifth hole is arranged on the base cover and is used for inserting the rotating shaft.

[0024] Preferably, the first hole on the lock shell, the second hole of the dustproof assembly, the third hole on the lock core, the fifth hole on the base layer and the fourth hole on the base cover are in a straight line for inserting the key, the key is attached to the inner surface of the second hole for rotating the dust cover to unlock the dust baffle, the key is inserted into the third hole through the second hole for rotating the lock core.

[0025] Preferably, the base assembly is provided with an electrode sheet in contact with the guide wheel for sending an electric signal to control the opening and closing of the door lock when the guide wheel rotates.

[0026] Preferably, the pressing block is inclined on the side in contact with the air bag for expanding the contact area with the air bag.

[0027] (Three) beneficial effects

[0028] Compared with the prior art, the utility model provides a mechanical structure improved mortise lock, has the following beneficial effects:

[0029] 1、 the mechanical structure improved mortise lock, through setting up dustproof assembly between lock shell and lock core, the end cover of dust cover is provided with the sliding slot in the edge of second hole, dust baffle is connected with sliding slot slidingly, key is inserted into second hole and drives dustproof assembly to rotate, dust baffle is along sliding groove sliding under the action of gravity, and dust cover is controlled to rotate through key, realizes closing dust cover when not needing inserting key, realizes the function of preventing dust from entering lock core hole and blocking granular dust to directly block lock core,

[0030] 2、 the mechanical structure improved mortise lock, through setting up dust blowing device on the outer surface of lock core side wall, namely setting up air bag on the outer wall of lock core and setting up pressing block on the inner wall of dustproof assembly, operating key rotates dust cover to control pressing block to extrude air bag, and air bag blows air to the inside of lock core, realizes blowing out the impurity located in the inside of lock core from the third hole from the bottom of lock core, reaches the function of dust removal;

[0031] 3、 the mechanical structure improved mortise lock, through setting up dust cover, realizes by key insertion second hole on dust cover, dust cover is sleeved on the outer surface of lock core, avoids lock core damage, and multiple protection and cleaning mechanism are fused, realizes three functions of rotating key control dustproof, dust removal and lock opening and closing. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the overall structure schematic diagram of the utility model mechanical structure improved mortise lock.

[0033] Figure 2 It is the utility model mechanical structure improved mortise lock's explosion map.

[0034] Figure 3The utility model discloses a mechanical structure improved mortise lock's section view.

[0035] Figure 4 The utility model discloses a mechanical structure improved mortise lock's air bag structure schematic diagram.

[0036] Figure 5 The utility model discloses a mechanical structure improved mortise lock's dustproof assembly one state structure schematic diagram.

[0037] Figure 6 The utility model discloses a mechanical structure improved mortise lock's dustproof assembly another state structure schematic diagram.

[0038] Figure 7 The utility model discloses a mechanical structure improved mortise lock's dust cover structure schematic diagram.

[0039] Figure 8 The utility model discloses a mechanical structure improved mortise lock's lock cylinder structure schematic diagram.

[0040] Figure 9 The utility model discloses a mechanical structure improved mortise lock's base assembly structure schematic diagram.

[0041] Figure 10 The utility model discloses a mechanical structure improved mortise lock's base layer structure schematic diagram.

[0042] Fig. 1, key; 2, dustproof assembly; 21, dust cover; 22, dust baffle; 23, briquetting; 24, second hole; 25, sliding slot;

[0043] 3, base assembly; 31, base layer; 311, fifth hole; 32, base cover; 321, fourth hole;

[0044] 4, lock shell; 41, first hole;

[0045] 5, lock cylinder; 51, pin hole; 52, pivot; 53, air bag; 531, air outlet pipe; 532, air inlet pipe; 533, pleated layer; 54, guide wheel; 55, third hole. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0047] In the description of the utility model, it is understood that the directions or position relations of the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as limiting the utility model.

[0048] In addition, the fixed connection refers to the connection after fixing the parts or components without any relative movement; the transmission connection refers to a connection mode of transmitting mechanical movement or torque to other working components through a transmission part; the sliding connection refers to a connection mode that two objects are in contact but not fixed, and the two objects can slide relative to each other; and the rotating connection refers to a connection mode that two objects are in contact but not fixed, and the two objects can rotate relative to each other.

[0049] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0050] Embodiment one:

[0051] The embodiment provides a mechanical structure improved mortise lock, which has the following technical features.

[0052] Please refer to Figures 1-10 A mechanical structure improved mortise lock, comprising a base assembly 3 and a lock shell 4, a first hole 41 is arranged on the lock shell 4, a lock cylinder 5 is arranged at the position close to the inside of the first hole 41, characterized in that the lock shell 4 is further provided with a dustproof assembly 2 at the position close to the outside of the first hole 41, and the dustproof assembly 2 comprises:

[0053] A dust cover 21 is installed in the first hole 41, and the dust cover 21 is composed of an end cover and a side wall surrounding the end cover;

[0054] A second hole 24 is arranged on the end cover of the dustproof assembly 2, and is used for inserting an external key 1;

[0055] A dust baffle 22 is slidingly connected to the side of the end cover of the dust cover 21 close to the lock cylinder 5, a sliding groove 25 is arranged on the end cover of the dust cover 21, the dust baffle 22 is slidingly connected in the sliding groove 25, and the dust baffle 22 is used for covering the second hole 24 when the key is not rotated;

[0056] When the key 1 is inserted into the second hole 24, the dustproof assembly 2 is rotated to the upper position by the key 1, the dustproof plate 22 is slid downward along the sliding groove 25 under the action of gravity, and the overlapping part of the dustproof plate 22 and the second hole 24 is gradually reduced until the second hole 24 is completely exposed, at which time the key 1 can continue to be inserted into the lock core 5.

[0057] In an optional embodiment, the lock core 5 comprises:

[0058] The pin hole 51 is arranged on the side wall of the lock core 5 and is used for cooperating with the key 1 to rotate the lock core 5.

[0059] The rotating shaft 52 is welded at one end of the lock core 5 and is used for sleeving the guide wheel 54 arranged on the base assembly 3.

[0060] The third hole 55 is arranged at the other end of the lock core 5.

[0061] In an optional embodiment, the lock core 5 further comprises a dust blowing device arranged on the outer surface of the side wall of the lock core 5, and the dust blowing device comprises:

[0062] The air bag 53 is fixedly arranged on the side wall of the outer surface of the lock core 5 at the position of the pin hole 51 and is used for blowing air to the third hole 55.

[0063] The pressing block 23 is welded on the inner side wall of the dust cover 21 and is used for pressing the air bag 53 when the dustproof assembly 2 is rotated.

[0064] It should be noted that the air bag 53 is arranged on the side wall of the outer surface of the lock core 5 by using adhesive tape or adhesive. The air bag 53 is a hollow capsule structure filled with air inside. The air bag 53 covers the pin hole 51 to prevent air from flowing out of the pin hole 51.

[0065] In an optional embodiment, the air bag 53 is communicated with the air outlet pipe 531 and the air inlet pipe 532. The air outlet pipe 531 is arranged in the gap between the air bag 53 and the lock core 5. The air inlet pipe 532 is arranged on the surface of the air bag 53 in contact with the external air. The air outlet pipe 531 and the air inlet pipe 532 are both provided with one-way valves.

[0066] It should be noted that the one-way valve in the air outlet pipe 531 is arranged to allow air to flow out of the air bag and into the air inlet pipe 532. The one-way valve in the air inlet pipe 532 is arranged to allow air to flow into the air bag. The air outlet pipe 531 is arranged close to the base assembly 3, so that air can pass through the entire lock core 5 and flow out of the second hole 24.

[0067] It should be noted that the pressing block 23 is kept a distance away from the air bag 53, so that the dust cover 21 needs to be rotated for a distance to make the dustproof plate 22 start to slide, and then the pressing block 23 presses the air bag 53.

[0068] In an alternative embodiment, the air bag 53 is provided with a pleated layer 533 on the surface thereof, for the air bag 53 to rebound.

[0069] It is to be noted that the air bag 53 is provided with a spring or a rubber material with rebounding force, for the air bag 53 to rebound after being separated from the pressing force.

[0070] In an alternative embodiment, the base assembly 3 comprises:

[0071] A base layer 31, on which the guide wheel 54 is rotatably arranged, and a fifth hole 311 is arranged on the base layer 31;

[0072] A base cover 32, which is fixedly arranged on the base layer 31, and a fourth hole 321 corresponding to the fifth hole 311 is arranged on the base cover 32, for the insertion of the rotating shaft 52.

[0073] It is to be noted that the base layer 31 and the base cover 32 are fixedly connected through the arrangement of a support column.

[0074] In an alternative embodiment, the first hole 41 on the lock shell 4, the second hole 24 of the dustproof assembly 2, the third hole 55 on the lock core 5, the fifth hole 311 on the base layer 31 and the fourth hole 321 on the base cover 32 are in a straight line, for the insertion of the key 1, the key 1 is attached to the inner surface of the second hole 24, for the rotation of the dust cover 21 to unlock the dust plate 22, the key 1 is inserted into the third hole 55 through the second hole 24, for the rotation of the lock core 5.

[0075] In an alternative embodiment, the base assembly 3 is provided with an electrode sheet in contact with the guide wheel 54, for the sending of an electric signal to control the opening and closing of the door lock when the guide wheel 54 rotates.

[0076] It is to be noted that the rotation of the lock core 55 drives the guide wheel 54 to rotate, triggering the electrode sheet to generate an electric signal.

[0077] In an alternative embodiment, the pressing block 23 is inclined on the side in contact with the air bag 53, for the expansion of the area in contact with the air bag 53.

[0078] Working principle:

[0079] When the key 1 is not inserted, the dust plate 22 remains in the state of blocking the second hole 24, and the pressing block 23 is not in contact with the air bag 53;

[0080] When the key 1 is inserted into the dust cover 21, the dust baffle 22 still blocks the second hole 24 because the key 1 is not rotated. When the key 1 is rotated to rotate the dust cover 21 by 180°, the dust baffle 22 in the dust cover 21 slides along the sliding groove 25 under the action of gravity, exposing the second hole 24. The pressing block 23 in the dust cover 21 is pressed to extrude the air bag 53, the air bag 53 is compressed, and the gas is sprayed from the air outlet pipe 531. The floating dust in the air bag 53 is pushed out of the air bag 53 by the gas through the third hole 55.

[0081] When the key 1 is continuously inserted into the lock cylinder 5 and the lock cylinder 5 is continuously rotated, the air bag 53 is extruded to be flat, leaving a gap between the lock cylinder 5 and the dust cover 21 for the pressing block 23 to rotate with the dust cover 21. The lock cylinder 5 drives the guide wheel 54 to rotate, and the guide wheel 54 triggers the electrode sheet to generate an electric signal to control the lock body.

[0082] When the air bag 53 is extruded by the pressing block 23 and then rebounds, the air is sucked into the air bag 53 through the air inlet pipe 532 by the suction force generated by the rebounding of the air bag 53 for next use.

[0083] In summary, the mechanical structure improved plug core lock sets a dust cover assembly 2 between the lock shell 4 and the lock cylinder 5. The end cover of the dust cover 21 is provided with a sliding groove 25 located at the edge of the second hole 24. The dust baffle 22 is slidably connected with the sliding groove 25. When the key 1 is inserted into the second hole 24, the dust cover assembly 2 is driven to rotate. The dust baffle 22 slides along the sliding groove 25 under the action of gravity. The rotation of the dust cover 21 is controlled by the key 1. The dust cover 21 is closed without the need to insert the key 1. The dust cover 21 prevents floating dust from entering the lock cylinder hole and blocks the lock cylinder from being directly blocked by the particulate dust, achieving the dustproof function.

[0084] The mechanical structure improved plug core lock sets a dust blowing device on the outer surface of the sidewall of the lock cylinder 5, i.e., sets the air bag 53 on the outer wall of the lock cylinder 5 and sets the pressing block 23 on the inner wall of the dust cover assembly 2. The key 1 is operated to rotate the dust cover 21 to control the pressing block 23 to extrude the air bag 53. The air bag 53 blows air into the lock cylinder 5. The impurities in the lock cylinder 5 are blown out of the third hole 55 from the bottom of the lock cylinder 5, achieving the dust removal function.

[0085] The mechanical structure improved plug core lock sets the dust cover 21. The key 1 is inserted into the second hole 24 of the dust cover 21. The dust cover 21 is sleeved on the outer surface of the lock cylinder 5 to avoid damage to the lock cylinder 5. The dust cover 21 combines multiple protection and cleaning mechanisms to achieve the functions of dust prevention, dust removal, and lock opening and closing controlled by the rotating key 1.

[0086] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0087] While embodiments of the present application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes in form and detail can be made without departing from the principles and spirit of the application. The scope of the application is therefore defined by the appended claims and their equivalents.

Claims

1. A mechanically improved mortise lock, comprising a base assembly (3) and a lock housing (4), wherein a first hole (41) is provided on the lock housing (4), and a lock cylinder (5) is disposed at a position inside the first hole (41), characterized in that, The lock housing (4) is further provided with a dustproof component (2) at the outer position of the first hole (41), the dustproof component (2) including: A dust cover (21) is installed in the first hole (41), the dust cover (21) consisting of an end cap and a side wall around the end cap; The second hole (24) is provided on the end cap of the dustproof assembly (2) for inserting an external key (1). Dust baffle (22) is slidably connected to the end cover of dust cover (21) on the side near the lock cylinder (5). The end cover of dust cover (21) is provided with a sliding groove (25). The dust baffle (22) is slidably connected in the sliding groove (25) to cover the second hole (24) when no key is turned. After the key (1) is inserted into the second hole (24), the key (1) rotates and drives the dustproof component (2) to rotate to the upper position. The dustproof plate (22) slides down along the slide groove (25) under the action of gravity, so that the overlapping part of the dustproof plate (22) and the second hole (24) gradually decreases until the second hole (24) is completely exposed. At this time, the key (1) can continue to be inserted into the lock cylinder (5).

2. The mechanically improved mortise lock according to claim 1, characterized in that, The lock cylinder (5) includes: The pinhole (51) is located on the side wall of the lock cylinder (5) and is used to cooperate with the key (1) to rotate the lock cylinder (5). A rotating shaft (52) is fixedly installed at one end of the lock cylinder (5) and is used to connect the guide wheel (54) installed on the base assembly (3). The third hole (55) is located at the other end of the lock cylinder (5).

3. The mechanically improved mortise lock according to claim 2, characterized in that, The lock cylinder (5) also includes a dust blowing device disposed on the outer surface of the side wall of the lock cylinder (5), the dust blowing device comprising: An airbag (53) is fixedly installed on the side wall of the outer surface of the lock cylinder (5) located at the pin hole (51) and is used to blow air into the third hole (55); The pressure block (23) is fixedly installed on the inner side wall of the dust cover (21) and is used to squeeze the airbag (53) when the dust cover assembly (2) rotates.

4. The improved mortise lock according to claim 3, characterized in that, The airbag (53) is connected to an air outlet pipe (531) and an air inlet pipe (532). The air outlet pipe (531) is located in the gap between the airbag (53) and the lock cylinder (5). The air inlet pipe (532) is located on the surface of the airbag (53) that is in contact with the outside air. Both the air outlet pipe (531) and the air inlet pipe (532) are equipped with one-way valves.

5. A mechanically improved mortise lock according to claim 4, characterized in that, The surface of the airbag (53) is provided with a pleated layer (533) for the airbag (53) to rebound.

6. The improved mortise lock according to claim 5, characterized in that, The base assembly (3) includes: The base layer (31) has a guide wheel (54) rotatably mounted on the base layer (31), and the base layer (31) has a fifth hole (311). The base cover (32) is fixedly installed on the base layer (31). The base cover (32) is provided with a fourth hole (321) corresponding to the fifth hole (311) for inserting the rotating shaft (52).

7. The improved mortise lock according to claim 6, characterized in that, The first hole (41) on the lock shell (4), the second hole (24) of the dustproof component (2), the third hole (55) on the lock cylinder (5), the fifth hole (311) on the base layer (31) and the fourth hole (321) on the base cover (32) are in a straight line for inserting the key (1). The key (1) fits against the inner surface of the second hole (24) for rotating the dust cover (21) to unlock the dust baffle (22). The key (1) is inserted into the third hole (55) through the second hole (24) for rotating the lock cylinder (5).

8. The improved mortise lock according to claim 1, characterized in that, The base assembly (3) is provided with an electrode plate that contacts the guide wheel (54) and is used to send an electrical signal to control the opening and closing of the door lock when the guide wheel (54) rotates.

9. A mechanically improved mortise lock according to claim 5, characterized in that, The pressure block (23) has a sloping side on the side that contacts the airbag (53) to increase the contact area with the airbag (53).

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