Flip type dustproof cover of lock

Abstract

The invention relates to a flip type dustproof cover of a lock, and aims to solve the technical problems that the dustproof cover of the existing similar product is poor in structural design, poor in positioning effect and easy to break after being opened, poor in buckling and fixing effect and waterproof after being closed, and poor in applied handle plane lock structure. A main body of the dustproof cover is a cover body, and the dustproof cover is characterized in that a shaft edge at one end of the cover body is hinged and fixed to bosses symmetrically arranged at the two ends of a base at a lock body through pins, the bosses are hinged seats of the lock body, the bosses are square, and when the cover body is opened to be slightly larger than 90 degrees, the cover body abuts against the tops of the bosses of the base in a limited mode; a clamp spring is arranged at the bottom of the other symmetrical end of the cover body on one side of the base, a raised fixing buckle is arranged on the base corresponding to the clamp spring, and a waterproof gasket is arranged in a groove in the middle of the bottom of the cover body on one side of the base; and when the snap spring of the cover body and the fixing buckle of the base are covered and buckled and fixed, the groove of the cover body and the waterproof gasket in the groove are aligned and sealed with the lock cylinder and the key hole which are bulged on the plane of the base.

Description

Technical Field

[0001] The invention relates to a dust cover of an outdoor lock in the field of mobile communication equipment, in particular to a flip-type dust cover of the lock. Background Art

[0002] Locks generally refer to devices that have a sealing function, mainly including locks, keys and their accessories. Some metal cabinet locks, outdoor locks, electrical cabinet door locks and other mechanical locks are equipped with dust covers on the outside of the lock core for dust and water protection. At present, there are two main ways to open the dust cover of lock products with dust covers: rotating and flipping. Among them, the disadvantages of rotating are as follows: 1. When the dust cover is a plastic part, the dust cover is easy to break and the waterproof level is low; 2. When the dust cover is a zinc alloy, there is a risk of paint scratching and the waterproof level is low. The disadvantages of flipping are as follows: 1. Manual opening requires manual opening; 2. The positioning surface of the dust cover is outside and can be directly seen after the paint falls off; 3. The fixing buckle is spray-painted as a whole and is easy to fall off; 4. The key is close to the dust cover, which hurts the hand when unlocking. The above-mentioned rotating dust cover structure, such as the application number 202022060081.8 disclosed in the Chinese patent document, the authorization announcement date is 2021.06.22, and the utility model name is "Communication power cabinet lock with triple anti-theft function"; the above-mentioned flip-open dust cover structure, such as the application number 202322814661.5 disclosed in the Chinese patent document, the authorization announcement date is 2024.10.01, and the utility model name is "A safety lock with a dust cover"; at the same time, the above-mentioned products and similar products further have the problems of poor waterproof sealing effect, easy rust of parts, easy breaking of dust covers, difficult positioning of dust covers after opening, which easily interferes with the use of handles, and easy collision and scratches between the handle operation and the dust cover in the flat lock, poor wear resistance, etc. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a flip-type dust cover for a lock in the art, which can solve the technical problems that the dust cover of the existing similar products has poor positioning effect after opening, easily interferes with the use of the handle, has poor buckling and fixing structure design, poor stability, is inconvenient to produce and assemble, has poor waterproof effect, and is easy to be broken; and lacks application of handle flat locks and lock improvements, resulting in high production costs of similar handle flat locks, inconvenient handle operation and use, and poor stability. The purpose is achieved through the following technical solutions.

[0004] A flip-up dust cover for a lock, the main body of the dust cover is a cover body, one end of the cover body is hinged and fixed to a hinge seat raised on the lock body by a pin, a torsion spring is arranged on the pin at the hinge, the lock body is provided with a lock core, the cover body is arranged on the outside of the key hole of the lock core and covers the lock core and the key hole of the lock core; the key point of its structural design is that the axial edge of one end of the cover body is hinged and fixed to the bosses symmetrically arranged at both ends of the base on the lock body by a pin, the bosses are the hinge seats of the lock body, the bosses are square, and the end angles on both sides of the cover body are symmetrical A corresponding notch is provided. When the cover is opened to more than 90 degrees, the cover is limited to abut against the top of the boss of the base; a clip is provided at the bottom of the other end of the cover on one side of the base, and a raised fixing buckle is provided at the base corresponding to the clip. A waterproof gasket is provided in the middle groove at the bottom of the cover on one side of the base; when the clip of the cover is combined with the fixing buckle cover of the base, the groove of the cover and the waterproof gasket in the groove are aligned and sealed with the lock core and keyhole with a flat protrusion or a flat surface at the base; the lock body includes a base, a lock core and a cover. The opening angle of the cover of the above structure is not limited to more than 90 degrees, and it can be slightly greater than 90 degrees and limited to abut against the top of the boss of the base.

[0005] The clamping spring is in a U shape, and the opening of one end of the clamping spring is respectively fixed in the clamping spring column symmetrically arranged on the bottom of the cover body, and the bottom inner side of the other end of the clamping spring is fixed in the positioning column symmetrically arranged on the other side of the clamping spring column; the gap interference buckle arranged parallel and symmetrically in the middle of the clamping spring is fixed in the groove ring at the ball table at the top of the fixing buckle. The above is the specific structure and assembly method of the clamping spring, and corresponds to the specific fixing buckle structure. The release force of the cover body reaches 6-20N.

[0006] The inner base of the hinged fixing part of the cover and the boss of the base is provided with a raised positioning platform, and the cover corresponding to the positioning platform is provided with a positioning groove. The above structure further improves the stability of the cover when it is closed, and does not affect the beautiful appearance caused by paint peeling after scratching.

[0007] The hinged fixing point of the cover body and the boss of the base is greater than 25 mm away from the center of the lock core, so that the cover body is not easily affected by the fingers when the key is operated after it is opened.

[0008] The end of the fixing buckle of the cover is open and extends out of the edge of the base, and the corresponding end of the base is provided with an end angle bevel. The above structure facilitates the opening of the cover without affecting its sealing and buckling.

[0009] The cover body is a zinc alloy dust cover, the pin is a stainless steel pin, and the fixing buckle is a stainless steel fixing buckle. The above improves dustproof and waterproof, as well as firmness, stability and service life.

[0010] The cover body is arranged at one end of the top of the base, and a lock tongue is arranged in the base below the cover body. One end of the lock tongue is buckled with a lock head at one end of the bottom of the handle. The lock head of the handle is inserted into the base through the lock head hole of the base, and a gasket is arranged at the bottom of the handle at the lock head. The inner hole at the other end of the lock tongue is inserted into the outer diameter of the bottom of the lock core in the base. At the same time, the outer diameter of the lock bolt rotating when the lock is turned on and off at the bottom of the lock core is against the inner diameter of the inner hole of the lock tongue to drive the lock tongue to move. The end of the inner hole of the lock tongue is against the spring in the base. The other end of the handle in the base is hinged with one end of the rotating shaft in the base, and another torsion spring is arranged at the hinge. The other end of the rotating shaft is connected to the connecting rod assembly. The rotating shaft, lock tongue, lock bolt, spring, and lock core are encapsulated in the bottom of the base through the bottom plate. The above is a specific structural embodiment of the dust cover used in the handle plane lock, but it is not limited to the above handle plane lock.

[0011] The other end of the rotating shaft is provided with an integrally formed toothed disc, and the outer diameter teeth on both sides of the toothed disc mesh with the teeth on the inner side of one end of the connecting piece symmetrically arranged on both sides at the same time. The other end of the connecting piece extends out of the bottom plate of the base and is connected to the sky and earth rods. The ring surface above the outer diameter teeth of the toothed disc and the top edge of the teeth of the connecting piece are limited, and the connecting piece extending out of the base is arranged in an upper and lower offset arrangement, and a sliding hole is arranged at the corresponding bottom plate. The above-mentioned bottom plate includes a first bottom plate and a second bottom plate, which are respectively arranged at the bottom of the base below the rotating shaft and the bottom of the base below the lock core, and an integrated bottom plate can also be used according to needs and designs; the connecting piece is arranged differently according to different left and right position operations and needs, and the assembly and production between the connecting piece and the rotating shaft are convenient.

[0012] The connecting piece is a die-casting piece, and is L-shaped. The other end of the connecting piece is eccentrically arranged inwardly, and is provided with at least one mounting hole.

[0013] One end of the handle of the lock tongue is bent into an L shape, and the inner hole of the lock tongue is waist-shaped. The above structural design reduces the space occupied by the lock tongue.

[0014] The handle is a die-casting, with convex edges symmetrically arranged on both sides of the top of the handle, and the notch of the handle groove in the base corresponding to the convex edges is provided with a concave edge that is lower than the top plane and open; when the handle is locked in the handle groove of the base, the convex edge of the handle is limited to the notch of the handle groove of the base, and the convex edges on both sides of the handle leak out of the concave edge of the base, and the bottom of the handle in the base is provided with a corrugated gripping groove. The above structure facilitates the use of the handle taken out of the base and improves the comfort when holding.

[0015] The handle groove in the base is provided with a hanging ear, and a padlock hole at one end of the hanging ear extends out of the ear hole of the handle, and the hanging ear is integrally formed with the base or connected in a split manner. The hanging ear is arranged as required, and the ear hole of the hanging ear is used for the use of a padlock.

[0016] The invention has a reasonable structural design, is easy to produce, assemble and operate, has good anti-scratch, anti-paint peeling, dust-proof and waterproof effects, has a firm and stable structure, has a long service life, has a low production cost and a wide range of applications; it is suitable for use as a flip-type dust cover for locks and a handle flat lock, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is a schematic diagram of the main structure of the first embodiment of the present invention, in which an AA section is made.

[0018] Figure 2 yes Figure 1 AA cross-sectional structure schematic diagram.

[0019] Figure 3 yes Figure 1 Schematic diagram of the rear structure.

[0020] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure.

[0021] Figure 5 yes Figure 4 Schematic diagram of part of the explosion structure.

[0022] Figure 6 yes Figure 4 A schematic diagram of the structure of the cover body in an open state, in which part A is framed.

[0023] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of part A.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of embodiment 2 of the present invention.

[0025] Serial numbers and names of the accompanying drawings: 1. base, 101. boss, 102. positioning platform, 2. handle, 201. lock head, 202. convex edge, 203. ear hole, 3. hanging ear, 4. cover body, 401. retaining spring column, 402. positioning column, 5. first bottom plate, 6. rotating shaft, 601. toothed disc, 6011. ring surface, 7. connecting part, 701. toothed edge, 8. second bottom plate, 9. lock tongue, 10. lock bolt, 11. lock core, 12. spring, 13. fixing buckle, 14. waterproof gasket, 15. pin, 16. gasket, 17. retaining spring. Implementation

[0026] Now, the structure and use of the present invention will be further described in conjunction with the accompanying drawings. Figure 1-Figure 7In the first embodiment shown, the main body of the dust cover is a cover body 1, one end of the cover body is hingedly fixed to a hinge seat raised on the lock body by a pin 15, the pin at the hinge is provided with a torsion spring, the lock body is provided with a lock core 11, the cover body is arranged on the outside of the key hole of the lock core and covers the lock core and the key hole at the lock core; the axial edge of one end of the cover body is hingedly fixed to the bosses 101 symmetrically arranged at both ends of the base at the lock body by a pin, the boss is the hinge seat of the lock body, the boss is square, and corresponding notches are symmetrically arranged at the end corners of both sides of the cover body. When the cover body is opened to more than 90 degrees, the cover body limit is abutted. At the top of the boss of the base; a retaining spring 17 is symmetrically provided at the bottom of the other end of the cover body on one side of the base, and a raised fixing buckle 13 is provided at the base corresponding to the retaining spring, and a waterproof gasket 14 is provided in the middle groove at the bottom of the cover body on one side of the base; when the retaining spring of the cover body and the fixing buckle cover of the base are combined and buckled and fixed, the groove of the cover body and the waterproof gasket in the groove are aligned and sealed with the flat raised lock core and key hole at the base; the lock body includes a base, a lock core and a cover body; a hanging ear 3 is provided in the handle groove in the base, and the padlock hole at one end of the hanging ear extends out of the ear hole 203 of the handle, and the hanging ear is integrally formed with the base or connected in parts.

[0027] The above-mentioned retaining spring is in a U-shape, and the opening port at one end of the retaining spring is respectively snap-fastened in the retaining spring column 401 symmetrically arranged on the bottom of the cover body, and the bottom inner side of the other end of the retaining spring is snap-fastened in the positioning column 402 symmetrically arranged on the other side of the retaining spring column; the gap interference snap fastening arranged in parallel and symmetrically in the middle of the retaining spring is fixed to the groove ring at the ball table at the top of the fixing buckle. A raised positioning platform 102 is provided on the inner side of the base where the cover body and the boss of the base are hinged and fixed, and a positioning groove is provided on the cover body corresponding to the positioning platform; the distance between the boss of the cover body and the base and the center of the lock core is greater than 25mm; the end of the fixing buckle of the cover body is open and extends out of the edge of the base, and the corresponding end of the base is provided with an end angle bevel. The above-mentioned cover body is a zinc alloy dust cover, the pin is a stainless steel pin, and the fixing buckle is a stainless steel fixing buckle.

[0028] The above-mentioned cover body is arranged at one end of the top of the base, and a lock tongue 9 is arranged in the base below the cover body, and one end of the lock tongue is buckled with a lock head 201 at one end of the bottom of the handle 2, and the lock head of the handle is inserted into the base through the lock head hole of the base, and a gasket 16 is arranged at the bottom of the handle at the lock head; the inner hole at the other end of the lock tongue is inserted into the outer diameter of the bottom of the lock core in the base, and at the same time, the outer diameter of the lock bolt 10 that rotates when the lock is switched at the bottom of the lock core is against the inner diameter of the inner hole of the lock tongue, and the end of the inner hole of the lock tongue is against the spring 12 in the base to drive the lock tongue to move, and the other end of the handle in the base is hinged to one end of the rotating shaft 6 in the base, and another torsion spring is arranged at the hinge, and the other end of the rotating shaft is connected to the connecting rod assembly, and the rotating shaft, lock tongue, lock bolt, spring, and lock core are encapsulated in the bottom of the base through the bottom plate. The other end of the rotating shaft is provided with an integrally formed toothed disc 601, and the outer diameter teeth on both sides of the toothed disc mesh with the toothed edges 701 at the inner side of one end of the connecting piece 7 symmetrically arranged on both sides at the same time, and the other end of the connecting piece extends out of the bottom plate of the base and is connected to the sky and earth rods, and the ring surface 6011 above the outer diameter teeth of the toothed disc and the top edge of the toothed edge of the connecting piece are limited, and the connecting piece extending out of the base is arranged in an upper and lower staggered arrangement, and the corresponding bottom plate is provided with a sliding hole. The above-mentioned bottom plate includes a first bottom plate 5 and a second bottom plate 8, which are respectively arranged at the bottom of the base below the rotating shaft and the bottom of the base below the lock cylinder.

[0029] The above-mentioned connecting piece is a die-casting part, and the connecting piece is L-shaped. The other end of the connecting piece is eccentrically set inward and is provided with at least one mounting hole; one end of the handle of the lock tongue is bent into an L-shape, and the inner hole of the lock tongue is waist-shaped. The handle is a die-casting part, and convex edges 202 are symmetrically provided on both sides of the top of the handle. The notches at the handle grooves in the base corresponding to the convex edges are provided with concave edges that are lower than the top plane and open; when the handle is locked in the handle groove of the base, the convex edges of the handle are limited to the notches at the handle grooves of the base, and the convex edges on both sides of the handle leak out of the concave edges of the base, and the bottom of the handle in the base is provided with a corrugated gripping groove. Figure 8 As shown, the ear can be omitted in the base of the above structure, and the ear hole corresponding to the ear can be omitted at the handle.

[0030] When in use, open the cover, rotate it until the boss position of the base is greater than 90 degrees, and it is automatically fixed. After inserting the key and turning the key, the key drives the lock core to rotate, and the steel bolt of the lock core drives the lock tongue to disengage from the lock head of the handle, and the handle can pop out from the base. After the lock tongue and the steel bolt are displaced and rotated, they are automatically reset by the spring in the base; turn the handle, and the handle can drive the connecting piece at the bottom of the base to move through the rotating shaft to realize the unlocking or locking operation. Pull out the key, press and buckle the cover to close; after using the handle, rotate it to reset, and press it back into the base, and the lock head of the handle and the lock tongue in the base can be re-fastened and locked; at this time, the lock beam of the padlock can also be inserted into the hanging ear, and the handle can be further locked in the base through the padlock.

[0031] In summary, the specific advantages of this lock are as follows: 1. The cover body as the dust cover is made of zinc alloy material and fixed by stainless steel pins to increase strength; the dust cover is combined with a torsion spring to reduce the risk of artificial hard opening; the lock core is compressed and sealed by a waterproof gasket to enhance the waterproof IP level; 2. The positioning platform of the base at the dust cover is on the inside, and it will not be seen even if the paint falls off; 3. The fixing buckle is changed to stainless steel, which is wear-resistant; 4. The center of the lock core and the hinged fixing point of the dust cover are about 25mm, and the hand will basically not be touched (hurt) when operating the key; 5. After manual opening, the dust cover is bounced up by the torsion spring, and the dust cover and the boss of the base are positioned; 6. When closed, the retaining spring and the fixing buckle are buckled. This lock meets the following test results: 1. The life of the dust cover is 10,000 times; 2. The overall waterproof reaches IP5; 3. The maximum load of the dust cover is 300N.

[0032] The above contents are intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Those skilled in the art may make obvious improvements or substitutions to the present invention in combination with existing common knowledge, which also fall within the protection scope of the claims of the present invention. For example, the above-mentioned cover body, base and other components are die-casting parts, and the cover body is applied to other outdoor or cabinet locks that require dust covers.

Claims

1. A flip-type dust cover for a lock, the main body of the dust cover being a cover body (4), one end of the cover body being hingedly fixed to a hinge seat protruding from the lock body by a pin (15), the pin at the hinge being provided with a torsion spring, the lock body being provided with a lock core (11), the cover body being arranged outside the key hole of the lock core and covering the lock core and the key hole at the lock core; characterized in that The axial edge of one end of the cover body (4) is hingedly fixed to the bosses (101) symmetrically arranged at the two ends of the base (1) at the lock body through a pin (15), the boss being the hinge seat of the lock body, the boss being square, and the two side corners of the cover body being symmetrically provided with corresponding notches, when the cover body is opened to more than 90 degrees, the cover body is limited to abut against the top of the boss of the base; a retaining spring (17) is symmetrically provided at the bottom of the other end of the cover body on one side of the base, a raised fixing buckle (13) is provided at the base corresponding to the retaining spring, and a waterproof gasket (14) is provided in the middle groove at the bottom of the cover body on one side of the base; when the retaining spring of the cover body is combined with the fixing buckle cover of the base and fixed by the buckle, the groove of the cover body and the waterproof gasket in the groove are aligned and sealed with the lock core (11) and the keyhole which are raised or flush with the plane at the base; the lock body comprises a base, a lock core and a cover body.

2. The lock flip dust cover according to claim 1, characterized in that The retaining spring (17) is U-shaped, and the opening of one end of the retaining spring is respectively snap-fastened in the retaining spring column (401) symmetrically arranged on the bottom protrusion of the cover body (4), and the bottom inner side of the other end of the retaining spring is snap-fastened in the positioning column (402) symmetrically arranged on the other side of the retaining spring column; the gap interference snap fastener arranged parallel and symmetrically in the middle of the retaining spring is fixed to the groove ring at the ball table top of the fixing buckle (13).

3. The lock flip dust cover according to claim 1, characterized in that A raised positioning platform (102) is provided on the inner side of the base where the cover body (4) and the boss (101) of the base (1) are hingedly fixed, and a positioning groove is provided on the cover body corresponding to the positioning platform.

4. The lock flip dust cover according to claim 1, characterized in that The distance between the hinged connection point between the cover body (4) and the boss (101) of the base (1) is greater than 25 mm from the center of the lock core (11).

5. The lock flip dust cover according to claim 1, characterized in that The end of the fixing buckle (13) of the cover body (4) is open and extends out of the edge of the base (1), and the corresponding end of the base is provided with an end angle bevel.

6. The lock flip dust cover according to claim 1, characterized in that The cover body (4) is a zinc alloy dust cover, the pin (15) is a stainless steel pin, and the fixing buckle (13) is a stainless steel fixing buckle.

7. The lock flip dust cover according to claim 1, characterized in that The cover body (4) is arranged at one end of the top of the base (1), and a lock tongue (9) is arranged in the base below the cover body. One end of the lock tongue is buckled with a lock head (201) at one end of the bottom of the handle (2), and the lock head of the handle is inserted into the base through the lock head hole of the base. A gasket (16) is arranged at the bottom of the handle at the lock head. The inner hole at the other end of the lock tongue is inserted into the outer diameter of the bottom of the lock core (11) in the base. At the same time, the outer diameter of the lock bolt (10) rotating when the lock is opened and closed at the bottom of the lock core is abutted against the inner diameter of the inner hole of the lock tongue. The end of the inner hole of the lock tongue is abutted against the spring (12) in the base to drive the lock tongue to move. The other end of the handle in the base is hinged to one end of the rotating shaft (6) in the base, and another torsion spring is arranged at the hinge. The other end of the rotating shaft is connected to the connecting rod assembly. The rotating shaft, lock tongue, lock bolt, spring and lock core are encapsulated in the bottom of the base through a bottom plate.

8. The lock flip dust cover according to claim 7, characterized in that The other end of the rotating shaft (6) is provided with an integrally formed toothed disc (601), and the outer diameter tooth openings on both sides of the toothed disc are simultaneously meshed with the toothed edges (701) at the inner side of one end of the connecting piece (7) symmetrically arranged on both sides. The other end of the connecting piece extends out of the bottom plate of the base (1) and is connected to the top and bottom rods. The ring surface (6011) above the outer diameter tooth opening of the toothed disc is abutted against the top edge of the toothed edge of the connecting piece for limiting position. The connecting piece extending out of the base (1) is arranged to be staggered up and down, and a sliding hole is provided at the corresponding bottom plate.

9. The lock flip dust cover according to claim 7, characterized in that The connecting piece (7) is a die-casting piece, and is L-shaped. The other end of the connecting piece is eccentrically arranged inwardly, and is provided with at least one mounting hole.

10. The lock flip dust cover according to claim 7, characterized in that The handle (2) is a die-cast part, and convex edges (202) are symmetrically provided on both sides of the top of the handle, and the handle groove in the base (1) corresponding to the convex edges is provided with a concave edge that is lower than the top plane and open; when the handle is locked in the handle groove of the base, the convex edge of the handle is limited to the notch of the handle groove of the base, and the convex edges on both sides of the handle leak out of the concave edge of the base, and the bottom of the handle in the base is provided with a corrugated gripping groove.

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