Flip type dustproof cover of lock

Abstract

The utility model relates to a flip type dustproof cover of a lock, which aims at solving 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 utility model relates to a dust cover for an outdoor lock in the field of mobile communication devices, and is a flip - type dust cover for a lock. Background Art

[0002] A lock generally refers to an appliance for closing, mainly including a lock, a key and its accessories. Some mechanical locks such as metal cabinet locks, outdoor locks, and electrical cabinet door locks are provided with a dust cover on the outer side of the lock core for dust and water protection. At present, the opening methods of the dust cover in lock products with dust covers mainly include rotation opening and flip opening. Among them, the disadvantages of rotation opening 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 made of zinc alloy, there is a risk of paint scratching and the waterproof level is low. The disadvantages of flip opening are as follows: 1. Manual opening requires manual operation to the full - open position; 2. The positioning surface of the dust cover is outside, and the paint loss can be directly seen; 3. The fixing buckle is integrally painted and is easy to lose paint; 4. The distance between the key and the dust cover is close, which is uncomfortable when unlocking. The above - mentioned dust cover structure with rotation opening, such as the utility model patent document disclosed in China with the application number 202022060081.8, the authorization announcement date of June 22, 2021, and the utility model name "Communication and power cabinet lock with triple anti - theft function"; the above - mentioned dust cover structure with flip opening, such as the utility model patent document disclosed in China with the application number 202322814661.5, the authorization announcement date of October 01, 2024, and the utility model name "A safety lock with a dust cover"; at the same time, the above products and similar products further have problems such as poor waterproof sealing effect, easy rust of components, easy breakage of the dust cover, difficult positioning after the dust cover is opened, which is easy to interfere with the use of the handle, and easy collision and scratch between the handle operation and the dust cover in the flat lock, and poor wear resistance. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the present utility model is to provide a flip - type dust cover for a lock to the field, so as to solve the technical problems that the positioning effect of the dust cover of existing similar products is poor after being opened, it is easy to interfere with the use of the handle, the buckle - fastening structure design is poor, the stability is poor, the production and assembly are inconvenient, the waterproof effect is poor, and it is easy to be broken; and the lack of application in the handle flat lock and the improvement of the lock result 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 - type 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 raised hinge seat on the lock body through a pin. A torsion spring is provided on the pin at the hinge. The lock body is provided with a lock core. The cover body is arranged outside the keyhole of the lock core and covers the lock core and the keyhole at the lock core. The key design point of its structure is that the shaft edge at one end of the cover body is hinged and fixed to the convex platforms symmetrically arranged at both ends of the base on the lock body through a pin. The convex platforms are the hinge seats of the lock body. The convex platforms are square. Corresponding notches are symmetrically provided at both side end corners of the cover body. When the cover body is opened to more than 90 degrees, the cover body is limited and abuts against the top of the convex platform of the base. A snap spring is provided at the bottom of the symmetric other end on one side of the cover body. A raised fixing buckle is provided at the corresponding position of the base for the snap spring. A waterproof gasket is provided in the middle groove at the bottom of one side of the cover body. When the snap spring of the cover body is combined with and snap - fixed to the fixing buckle of the base, the groove of the cover body and the waterproof gasket in the groove are aligned and sealed with the flat - raised or flat lock core and keyhole at the base. The lock body includes a base, a lock core and a cover body. The opening angle of the cover body with the above - mentioned structure is not limited to more than 90 degrees. Slightly more than 90 degrees and being limited and abutting against the top of the convex platform of the base is sufficient.

[0005] The snap spring is U - shaped. The ports at the openings at one end of the snap spring are respectively snap - fixed into the symmetrically arranged snap - spring columns raised at the bottom of the cover body. The inner side of the bottom of the other end of the snap spring is snap - fixed to the positioning column on the symmetrically arranged other side of the snap - spring column. The gaps symmetrically arranged in parallel in the middle of the snap spring are interference - snap - fixed to the groove ring at the ball table on the top of the fixing buckle. The above is the specific structure and assembly method of the snap spring and corresponds to the specific structure form of the fixing buckle. The release force of the cover body reaches 6 - 20 N.

[0006] A raised positioning platform is provided on the inner - side base at the hinged and fixed part of the cover body and the convex platform of the base. A positioning groove is provided at the corresponding position of the cover body. The above structure further improves the stability when the cover body is closed and does not affect the appearance beauty caused by paint peeling after scratching and bumping.

[0007] The distance between the hinged and fixed part of the cover body and the convex platform of the base and the center of the lock core is greater than 25 mm. Thus, it is not easy to affect the fingers during key operation after the cover body is opened.

[0008] The end of the cover body at the fixing buckle is open and extends out of the edge of the base. An end - angle bevel is provided at the corresponding end of the base. The above structure facilitates the opening of the cover body and does not affect 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 dust prevention, waterproofing, as well as firmness, stability and service life.

[0010] The cover body is arranged at one end of the top of the base. A locking tongue is arranged in the base below the cover body. One end of the locking tongue is buckled with the lock head at the bottom end of the handle. The lock head of the handle is inserted into the base through the lock head hole of the base. A gasket is arranged at the bottom of the handle at the lock head. While the inner hole at the other end of the locking tongue sleeves the outer diameter of the bottom of the lock core in the base, the outer diameter of the locking bolt that rotates when the lock core is switched on and off at the bottom abuts against the inner diameter at the inner hole of the locking tongue to drive the locking tongue to move. The end at the inner hole of the locking tongue abuts against the spring in the base. The other end of the handle in the base is hinged to one end of the rotating shaft in the base. Another torsion spring is arranged at the hinge. The other end of the rotating shaft is connected to the link assembly. The rotating shaft, the locking tongue, the locking bolt, the spring, and the lock core are encapsulated in the bottom of the base through a bottom plate. The above is a specific structural embodiment of the application of the dust cover in the handle flat lock, but it is not limited to the above handle flat lock.

[0011] The other end of the rotating shaft is provided with an integrally formed toothed disc. The outer diameter tooth openings on both sides of the toothed disc are simultaneously meshed with the tooth edges at the inner sides of one ends of the connecting pieces symmetrically arranged on both sides. The other ends of the connecting pieces extend out of the bottom plate of the base and are connected to the up-and-down rods. The circular surface above the outer diameter tooth opening of the toothed disc abuts against the top edge of the tooth edge of the connecting piece for limiting. The connecting pieces extending out of the base are arranged in an up-and-down staggered manner. Corresponding sliding holes are arranged on the bottom plate. The above 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. An integrated bottom plate can also be used according to needs and designs. The connecting pieces are differently arranged according to different left and right position operations and needs. The assembly and production between the connecting pieces and the rotating shaft are convenient.

[0012] The connecting piece is a die-casting. The connecting piece is in an L shape. The other end of the connecting piece is eccentrically arranged towards the inside and is provided with at least one mounting hole.

[0013] The handle end of the locking tongue is bent into an L shape. The inner hole of the locking tongue is in a waist shape. The above structural design reduces the space occupied by the locking tongue.

[0014] The handle is a die-casting. Convex edges are symmetrically arranged on both sides of the top of the handle. Concave edges that are lower than the top plane and open are arranged at the notches of the handle grooves in the base corresponding to the convex edges. When the handle is locked in the handle groove of the base, the convex edges of the handle are limited at the notches of the handle groove of the base. Part of the convex edges on both sides of the handle leak out of the concave edges of the base. A corrugated holding groove is arranged at the bottom of the handle in the base. The above structure facilitates the use of taking out the handle from the base and improves the comfort during holding.

[0015] The handle groove in the base is provided with a hanging ear. The hanging lock hole at one end of the hanging ear extends out of the ear hole of the handle. The hanging ear is integrally formed with the base or is detachably connected. The above hanging ear is arranged according to needs. The ear hole of the hanging ear is used for hanging a lock.

[0016] The structure of the utility model is reasonably designed, convenient for production, assembly, use and operation, with good anti-scratch, anti-chipping, dust-proof and waterproof effects, firm and stable structure, long service life, low production cost and wide application range. It is suitable for use as a flip-type dust cover for a lock and a flat lock for a handle, as well as for the structural improvement of similar products. Brief Description of the Drawings

[0017] Figure 1 FIG. is a front structural schematic diagram of the first embodiment of the utility model, with a sectional view taken along A-A in the figure.

[0018] Figure 2 is Figure 1 the sectional structural schematic diagram of A-A of

[0019] Figure 3 is Figure 1 the rear structural schematic diagram of

[0020] Figure 4 is Figure 1 the three-dimensional structural schematic diagram of

[0021] Figure 5 is Figure 4 the partial exploded structural schematic diagram of

[0022] Figure 6 is Figure 4 the structural schematic diagram in the state where the cover body of is opened, with part A framed in the figure.

[0023] Figure 7 is Figure 6 the enlarged structural schematic diagram of part A of

[0024] Figure 8 FIG. is the three-dimensional structural schematic diagram of the second embodiment of the utility model.

[0025] Reference Numerals and Names in the Drawings: 1. Base, 101. Boss, 102. Positioning Table, 2. Handle, 201. Lock Head, 202. Convex Edge, 203. Ear Hole, 3. Hanging Ear, 4. Cover Body, 401. Snap Ring Post, 402. Positioning Post, 5. First Base Plate, 6. Rotating Shaft, 601. Tooth Disk, 6011. Ring Surface, 7. Connecting Piece, 701. Tooth Edge, 8. Second Base Plate, 9. Lock Tongue, 10. Lock Bolt, 11. Lock Core, 12. Spring, 13. Fixed Button, 14. Waterproof Gasket, 15. Pin, 16. Gasket, 17. Snap Ring. Embodiment

[0026] Now, in conjunction with the drawings, the structure and use of the utility model will be further described. As Figures 1-7Embodiment 1 shown. The main body of the dust cover is the cover body 1. One end of the cover body is hinged and fixed to the protruding hinge seat of the lock body through a pin 15. A torsion spring is provided on the pin at the hinge. The lock body is provided with a lock core 11. The cover body is arranged outside the keyhole of the lock core and covers the lock core and the keyhole at the lock core. The shaft edge at one end of the cover body is hinged and fixed to the convex platforms 101 symmetrically arranged at both ends of the base of the lock body through a pin. The convex platforms are the hinge seats of the lock body. The convex platforms are square. Corresponding notches are symmetrically provided at both side end corners of the cover body. When the cover body is opened to more than 90 degrees, the cover body is limited and abuts against the top of the convex platform of the base. A snap spring 17 is provided at the bottom of the symmetric other end of the cover body on one side of the base. A protruding fixing buckle 13 is provided at the corresponding position of the base of the snap spring. 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 snap spring of the cover body is combined with and snapped and fixed to the fixing buckle of the base, the groove of the cover body and the waterproof gasket in the groove are aligned and sealed with the lock core and the keyhole which are plane protrusions 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 of the base. The hanging lock hole at one end of the hanging ear extends out of the ear hole 203 of the handle. The hanging ear is integrally formed with or separately connected to the base.

[0027] The above snap spring is U-shaped. The ports at the openings at one end of the snap spring are respectively snapped and fixed in the snap spring columns 401 symmetrically arranged on the protrusion at the bottom of the cover body. The inner side of the bottom of the other end of the snap spring is buckled and fixed to the positioning column 402 on the symmetric other side of the snap spring column. The gaps symmetrically arranged in parallel in the middle of the snap spring are interference-snapped and fixed to the groove ring at the ball table on the top of the fixing buckle. A protruding positioning table 102 is provided on the inner side of the base at the hinged and fixed part of the cover body and the convex platform of the base. A positioning groove is provided at the corresponding position of the cover body. The distance from the hinged and fixed part of the cover body and the convex platform of the base to the center of the lock core is greater than 25 mm. The end of the fixing buckle of the cover body is open and extends out of the edge of the base. The corresponding end of the base is provided with an end corner bevel. The above 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. Inside the base below the cover body, there is a lock tongue 9. One end of the lock tongue is buckled with the lock head 201 at the bottom end of the handle 2. 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. While the inner hole at the other end of the lock tongue is sleeved on the outer diameter of the bottom of the lock core inside the base, the outer diameter of the locking bolt 10 that rotates when the lock core is switched on and off at the bottom is abutted against the inner diameter at the inner hole of the lock tongue. The end at the inner hole of the lock tongue abuts against the spring 12 inside the base to drive the movement of the lock tongue. The other end of the handle inside the base is hinged to one end of the rotating shaft 6 inside the base. Another torsion spring is arranged at the hinge. The other end of the rotating shaft is connected to the link assembly. The rotating shaft, lock tongue, locking bolt, spring, and lock core are encapsulated inside the bottom of the base through a bottom plate. At the other end of the rotating shaft, there is an integrally formed gear disk 601. The outer diameter teeth at both sides of the gear disk are simultaneously meshed with the tooth edges 701 at the inner sides of one ends of the two symmetrically arranged connecting pieces 7. The other ends of the connecting pieces extend out of the bottom plate at the bottom of the base and are connected to the up-and-down rods. The circular surface 6011 above the outer diameter teeth at the gear disk abuts against the top edge at the tooth edge of the connecting piece for limiting. The connecting pieces extending out of the base are arranged in an up-and-down staggered manner, and corresponding sliding holes are arranged at the bottom plate. 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 core.

[0029] The above-mentioned connecting piece is a die-casting. The connecting piece is in an L shape. The other end of the connecting piece is eccentrically arranged towards the inside and is provided with at least one mounting hole. The handle end of the lock tongue is bent in an L shape, and the inner hole of the lock tongue is in a kidney shape. The handle is a die-casting. On both sides of the top of the handle, there are symmetrically arranged convex edges 202. At the notch of the handle groove inside the base corresponding to the convex edges, there is 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 edges of the handle are limited at the notch of the handle groove of the base, and part of the convex edges on both sides of the handle protrude out of the concave edge of the base. At the bottom of the handle inside the base, there is a corrugated holding groove. As Figure 8 shown, the hanging ears inside the base of the above-mentioned structure can also be omitted, and the ear holes corresponding to the hanging ears at the handle can be omitted.

[0030] When in use, open the cover body. When it rotates to a position greater than 90 degrees at the convex platform of the base, it is automatically fixed. After inserting the key and turning the key, the key drives the lock core to rotate. The locking 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 locking bolt generate displacement and rotation, they are automatically reset through the spring inside the base. Rotate the handle, and the handle can drive the connecting piece at the bottom of the base to move through the rotating shaft, realizing the unlocking or locking operation. Pull out the key, and the cover body is pressed and buckled to close. After the handle is used, rotate it to reset and press it back into the base again. The lock head of the handle and the lock tongue inside the base can be buckled and locked again. At this time, the lock beam of the padlock can also be inserted into the hanging ear, and the handle can be further locked inside the base through the padlock.

[0031] In summary, the specific advantages of the lock are as follows: 1. The cover body serving as the dust cover is made of zinc alloy material and fixed by stainless steel pins, which increases the strength; the dust cover is combined with a torsion spring to reduce the risk of manual forced turning; the lock core is compressed and sealed by a waterproof gasket to enhance the waterproof IP rating; 2. The positioning platform of the base at the dust cover is on the inner side, so even if the paint peels off, it will not be visible; 3. The fixing buckle is changed to stainless steel, which is wear-resistant; 4. The center of the lock core is approximately 25 mm from the hinge fixing point of the dust cover, and the hand is basically not touched (pinched) when operating the key; 5. After manual opening, the dust cover is sprung up by the torsion spring, and the dust cover abuts against the boss of the base for positioning; 6. When closing, the snap spring is engaged with the fixing buckle. The lock meets the following test results: 1. The service life of the dust cover is 10,000 times; 2. The overall waterproofing reaches IP5; 3. The maximum load of the dust cover is 300 N.

[0032] The above content is intended to illustrate the technical means of the present utility model and does not limit the technical scope of the present utility model. Obvious improvements or replacements made by those skilled in the art to the present utility model in combination with the existing well-known common knowledge also fall within the protection scope of the claims of the present utility model. For example, the above-mentioned components such as the cover body and the base are made of die-castings, 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 is a cover body (4). One end of the cover body is hinged and fixed to a raised hinge seat at the lock body through a pin (15). A torsion spring is provided on the pin at the hinge. The lock body is provided with a lock core (11). The cover body is arranged outside the keyhole of the lock core and covers the lock core and the keyhole at the lock core. It is characterized in that One end of the shaft edge of the cover body (4) is hinged and fixed to the bosses (101) symmetrically arranged at both ends of the base (1) of the lock body through a pin (15). The bosses serve as the hinge seats of the lock body. The bosses are square. Corresponding notches are symmetrically provided at both side end corners of the cover body. When the cover body is opened to more than 90 degrees, the cover body is limited and abuts against the top of the boss of the base. At the bottom of the other symmetric end of the cover body on one side of the base, a snap spring (17) is provided. A raised fixing buckle (13) is provided at the corresponding position of the base for the snap spring. 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 snap spring of the cover body is combined and snap-fixed with the fixing buckle of the base, the groove of the cover body and the waterproof gasket in the groove are aligned and sealed with the flat raised or flat lock core (11) and keyhole at the base. The lock body includes a base, a lock core and a cover body.

2. The flip-type dust cover of the lock according to claim 1, characterized in that The snap spring (17) is U-shaped. The ports at the openings at one end of the snap spring are respectively snap-fixed in the snap spring columns (401) symmetrically arranged and raised at the bottom of the cover body (4). The inner side of the bottom of the other end of the snap spring is snap-fixed to the positioning column (402) on the symmetrically opposite side of the snap spring column. The gaps symmetrically arranged in parallel in the middle of the snap spring are interference snap-fixed to the groove ring at the ball table at the top of the fixing buckle (13).

3. The flip-type dust cover of the lock according to claim 1, characterized in that At the inner side of the base at the hinged and fixed part of the cover body (4) and the boss (101) of the base (1), a raised positioning table (102) is provided. A positioning groove is provided at the corresponding position of the cover body for the positioning table.

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

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

6. The flip - type dust cover of the lock 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. The fixing buckle (13) is a stainless steel fixing buckle.

7. The flip-type dust cover of the lock according to claim 1, characterized in that The cover body (4) is arranged at one end on the top of the base (1). A lock tongue (9) is provided in the base below the cover body. One end of the lock tongue is buckled with the lock head (201) at the bottom of one end of the handle (2). The lock head of the handle is inserted into the base through the lock head hole of the base. A gasket (16) is provided at the bottom of the handle at the lock head. At the same time when the inner hole at the other end of the lock tongue is sleeved on the outer diameter at the bottom of the lock core (11) in the base, the outer diameter of the locking bolt (10) that rotates when the lock core is switched on and off at the bottom abuts against the inner diameter at the inner hole of the lock tongue. The end of the inner hole of the lock tongue abuts 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. Another torsion spring is provided at the hinged part. The other end of the rotating shaft is connected to the link assembly. The rotating shaft, the lock tongue, the locking bolt, the spring and the lock core are encapsulated at the bottom of the base through a bottom plate.

8. The flip-type dust cover of the lock according to claim 7, characterized in that The other end of the rotating shaft (6) is provided with an integrally formed tooth disc (601). The outer diameter tooth openings on both sides of the tooth disc are simultaneously meshed with the tooth edges (701) at the inner sides of one ends of the two symmetrically arranged connectors (7). The other ends of the connectors extend out of the bottom plate of the base (1) and are connected to the sky rod. The circular surface (6011) above the outer diameter tooth opening of the tooth disc abuts against and limits the top edge of the tooth edge of the connector. The connectors extending out of the base (1) are arranged in an up-and-down staggered manner. Corresponding sliding holes are provided at the bottom plate.

9. The flip-type dust cover of the lock according to claim 8, characterized in that The connecting piece (7) is a die-casting. The connecting piece is L-shaped, and the other end of the connecting piece is eccentrically arranged inward and is provided with at least one mounting hole.

10. The flip-type dust cover of the lock according to claim 7, characterized in that The handle (2) is a die-casting. On both sides of the top of the handle, convex edges (202) are symmetrically provided. At the notch of the handle groove in the corresponding base (1) of the convex edge, a concave edge lower than the top plane and with an opening is provided; when the handle is locked in the handle groove of the base, the convex edges of the handle are limited at the notch of the handle groove of the base, and partial convex edges on both sides of the handle leak out of the concave edge of the base. A corrugated holding groove is provided at the bottom of the handle in the base.

Images